Thursday, September 29, 2011

The American Concrete Institute is planning to publish a new standard for Cold-Formed Steel Framing – Nonstructural Members



The American Iron and Steel Institute (AISI), the leading developer of new steels and steelmaking technology in North America, is going to launch a new standard for nonstructural members.

This new standard is known as AISI S220 and is being developed by AISI committee on Framing Standards (COFS). AISI S220 is a North American Standard for Cold-Formed Steel Framing – Nonstructural Members and expected to be completed at the end of 2011 and published in 2012.

AISI S220 will be familiar with nonstructural members for instance wall studs applied in interior partition walls. It may also be applied to other members provided that they fulfill the nonstructural definition and limitations.

AISI S220 will clear the misunderstanding between engineers and building officials. The misunderstanding happens as the design and installation requisites for nonstructural members are found in a variety of documents together with the standards for structural members.

AISI S220 will accumulate this information addicted to one standard facilitating the steel industry to get a comprehensible understanding of design constraints for members in the nonstructural category whereas making it easier for design professionals to identify and building officials to approve steel for building projects.

AISI’s codes and standards work is accomplished in the Construction Market Council of the Steel Market Development Institute SMDI, a business unit of AISI.

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Sunday, September 25, 2011

Carlson Takeoff 2012 can speed up the design file conversion process


A new wing added to Carlson Takeoff software with the emergence of Carlson Takeoff 2012. Some robust improvements like increased 3D visualization, capability for working with PDF files, and the ability to provide customized, more professional reports. 

The contractors now get the ability to speed up converting design files. The estimators can now transform images to CAD linework acclerating the process of making this image data useful. 

This CAD-based project-estimating and modeling software is compatible with  AutoCAD® 2012 and IntelliCAD® 7.0 built-in. 

For road work project the contractor can break out cross section quantities by staging and also the reporting of inappropriate material for end areas with newly added report formatter.

The software is also very useful for creating machine control models that output to all leading machine control providers.

Carlson Software is also presenting a bunch of other softwares like 2012 versions of Carlson Survey, Carlson Civil, Carlson Hydrology, Carlson GIS, Carlson Point Cloud, Carlson Mining, and Carlson Natural Regrade, each featuring its own industry-specific improvements.


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Thursday, September 22, 2011

Maxwell System unveils 9.3 of Maxwell Systems™ Estimation®

Maxwell System Inc unveils the new version alias 9.3 of Maxwell Systems™ Estimation®. This new product includes some new advancements for takeoff and estimating that range from several maintenance enhancements, CAD integration with EastCoast Sheet Metals CAD/CAM product for the Estimation HVAC and Mechanical solutions. Now linking with AutoCAD files is expanded and becomes more convenient.

9.3 of Maxwell Systems™ Estimation® will provide lots of benefits to electrical, mechanical, plumbing, and HVAC contractors as the software combines together estimates, labor needs and cost analysis to bid more preciously and enhance speed & overall efficiency.

The software comes up with some exclusive features like improved functionality for estimating; wide-ranging purchasing for materials management; project management; digital and digitized takeoff; and incorporation of estimating, purchasing, and accounting systems.

Some notable improvements with 9.3 of Maxwell Systems™ Estimation® :-
EastCoast Sheet Metal CAD/CAM integration for accelerated takeoff
Advanced search capabilities in Takeoff help improve speed and convenience throughout process
Item data import with price updating now allows users to bring Excel
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Monday, September 19, 2011

Composition of total price of a construction project


The total cost of a construction project comprise of direct cost, contingency costs and margin.

Direct cost includes labor, material and equipment costs related with a construction project.

As for example direct cost for building foundation may contain the following :- 
  • Cost of formwork, reinforcing steel and concrete
  • Cost of labor to create and later strip the formwork, and position and complete the concrete
  • Cost of equipment cost related with foundation activities like concrete mixer.

Contingency costs affect overall project cost which happens during the course of the project. While estimating the project cost there is always some When estimating the cost for a project, product or other item or investment, there is always ambiguity regarding specific content of all items in the estimate, how work will be performed, what work conditions will be like when the project is executed and so on. These uncertainties may create risks to the project. These risk are sometime referred as "known-unknowns" as the estimator is conscious about them and based on past experience, can even estimate their probable costs.

Margin alias markup includes three component indirect or distributable costs, company-wide or general and administrative costs; and Profit.

Indirect costs relate to project-specific cost not related with a specific physical item. These costs may range from project management cost, payroll preparation, receiving, accounts payable, waste disposal and building permits.

Company Wide Cost comprises of costs not associated with project but occurred throughout the course of a project. These types of costs belong to the costs of some parts of company salaries and rentals. Company wide costs may also include the costs occur prior to or after a project. These types of costs relate to proposal preparation cost and the cost of outside auditing.

Profit for construction may come in two ways – Gross Profit and Net Profit. Gross profit is calculated by deducting the real cost of the job from the total price decided. The range of gross profit may range from 25 percent to 40 percent.

But the average net profit creates the bottom line of a construction firm. The average net profit is calculated by deducting overhead expenses from Gross Profit. Net profit is what is left after all expenses are deducted.


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Wednesday, September 14, 2011

Some useful methods for construction cost estimation



Cost estimation can be termed as a well-devised forecast of the possible construction cost of a specific building project. A detailed cost estimate presents information to owners, architects, and builders about the facility and the project budget throughout the design phase.

A cost estimate should incorporate all the items to be included in the general contractor’s
bid. A standard format is applied to break down the items for preparing the cost estimate. The cost of each item is established from a database of up to date construction cost information.

Accurate cost estimation plays a key role in construction projects that leads to better decision making. There are several methods available to prepare the estimate of a project. These methods are based on the project’s scope, estimating purpose and estimating resources.

Parametric cost models
Under this method a parametric model is applied in which costs are forecasted based on project characteristics (parameters) in a mathematical model. Here models are developed from historical cost data based or from building a model scenario on similar systems or subsystems. Models can be simple (for instance, with the cost per square foot to estimate the total cost of building a home) or they can be complex (for instance, applying several factors to estimate the total cost of home construction, for example the number of floors, windows, and doors).

Statistical analysis is performed on the data to discover connections between cost drivers and other system parameters, for example design or performance parameters. The analysis creates cost equations or cost estimating relationships to be utilized independently or grouped into more complex models.

Bottoms-Up method
This method is applied at the time of progression of level of detail with the advancement of project. Under this method a work statement and set of drawings or specifications are utilized to “takeoff” material quantities necessary for executing each separate task achieved in completing a prearranged operation or generating an equipment component. From these quantities, direct labor, equipment, and overhead costs are derived and added. The contractors always organize this type of estimate to support their proposal bid process. This entails with a detailed WBS and pricing out each work package making up the project.

Top-down estimate
It is subsidiary technique that starts with work breakdown structure (WBS). To get a top down estimated schedule the estimator has to break down the activity and set up linkage between activities. It is applied once a good overall estimate is ascertained for the project and the method is sub-divided down through the layers of the work breakdown structure.

A top-down estimate facilitates a project manager to obtain a very similar project’s budget, work some financial math magic and get a rational budget for the current project.

Top down estimating is primarily applied in construction projects to provide a quick estimate where the prerequisites are more or less static, and there aren't too much unknowns. This method can also be applied for small software projects.

Top-down estimates employ rules of thumb, parametric models, analogies, or cost estimating relationships (CERs). CERs based on historical experience that can present data involving the cost to build up a source line of software or the cost per square foot for a building construction project.

This method estimate the size (duration and cost) and risk of a project (or phase) by looking at the project as a whole and matching it with the similar projects executed in the past.

Specific Analogy Technique
This method is useful for early life cycle macro-estimation. Analogous estimating relies on historical information to forecast the cost of the current project. Under this method one has to select one or two completed projects that most intimately match the characteristics of your launching project concerning the scope of the current project, its size, and other known variables.

The process of analogous estimating considers the known cost of an item used in previous estimating systems as the basis for the cost of a similar item in a new estimating system. If any similarity is found, observe how many effort hours that project took, and utilize the information for your estimate. (If the organization don’t have any tracking for actual effort hours, detect how many people worked on the project for how long, and then regulate the hours as required.) Adjustments are made to known costs to make up differences in relative complexities of performance, design, and operational characteristics.

Watch the following power point presentation for demo.
http://www.nps.navy.mil/orfacpag/resumePages/OA4702/Chapter%2011%20Analogy.ppt

Cost Review and Update Technique
Under this method an estimate is created by investigating previous estimates of the same project for internal logic, completeness of scope, assumptions, and estimating methodology and bring up to date with any alterations.

Trend Analysis Technique
This method compares originally estimated contract costs against actual costs on work performed up till now to obtain a contractor efficiency index. The index is very useful for regulating the cost estimate of work not completed so far.

"Design-to-Cost"
Under this method all cost goals for development, acquisition, or operations and maintenance are utilized like design parameters together with technical performance, in the systems design trade-off process. In some situation where the absolute value of a dollar threshold required to be enclosed, the project definition, conceptual design, and development can deal with performance trade-offs to arrange the project in a predetermined cost envelope.

"Cost as the Independent Variable"
This method is an affordability based method ideal for planning project scope. The method begins with a fixed budget and performs toward the back in the course of a repetitive procedure of prioritizing and choosing constraints to appear at a project scope attainable within budget constrictions.

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Tuesday, September 13, 2011

Chilton unveils ChiltonEstimating ideal for professional automotive technicians

Chilton just released ChiltonEstimating, an online tool to create estimates, work orders, and invoices for professional Automotive Technicians.

By utilizing ChiltonEstimating the users can avail the current labor times with all content online and with two shop-user logins they can work on multiple job simultaneously. Besides the users can also open two work orders at a time to save huge time.

The information within ChiltonEstimating is regularly updated to enable users to get the most appropriate and latest information while carrying out an estimate. Furthermore, all vital customer information within ChiltonEstimating is accumulated securely online to ensure that all data may not be lost or destroyed.

ChiltonEstimating comes up with several pricing option to suit your requirements and can be purchased as an annual or monthly subscription.

Buy online

System Requirements
Internet Explorer 7.0 or later versions, Firefox 3.6 or later versions
High-speed Internet connection
Windows XP, Windows Vista, or Windows 7, 32bit or 64bit versions

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Monday, September 12, 2011

Site Work Estimating Sheets facilitate the work of estimator


Site work estimating sheet s are useful for intermediate estimators, real estate developers, general contractors, project managers to develop an accurate site-work construction cost estimate.

Site work estimating sheets are utilized for estimating foundation, earthwork construction & stabilization, underground utilities, estimating roadwork and paving. 

Site work estimating sheets contain work quantities, assemblies, price quotations, unit price, elements, labor, equipment hour, man hours, individual and subcontractor material for site work estimate as well as cut and fill, underground utilities, road-building estimate.

Given below some site work estimating sheet which can be downloaded at free of cost :-

Friday, September 9, 2011

Some state of the art software ideal for HVAC & Mechanical Estimator

HVAC estimating software provides great benefits to mechanical, piping, plumbing or sheet metal estimator to estimate the material and labor cost required to build a heating and cooling ventilating system. In order to find out the total cost estimate for the HVAC ventilating system all facets of material and labor cost are documented. A wide-ranging bill of materials supported with detailed design criteria and specifications for the HVAC system are generated alongwith related labor cost for manufacturing and installing a system in a building.

The HVAC estimating software also enhance your bid volume and accuracy by providing consistent, professional bids itemized in greater detail that are easily evaluated and amended to boost your business bottom line and competitive position. The software also provides a detailed bid report and summaries during a project.

The HVAC estimating software also facilitates the commercial estimator to characterize duct construction standards for rectangular, round and oval ductwork.

FastDuct
FastDUCT is an unique HVAC estimating software ideal for industrial and commercial sheet metal contractors to figure out construction cost quickly and precisely. The software can easily computetakeoff from rectangular, round, and oval ductwork and sheet metal and HVAC equipment.

The user can customize their specifications to go with their standard for duct construction or purchasing duct.


FastPIPE
FastPIPE™ is a state of the art mechanical piping software intended for plumbing contractors to estimate the plumbing work and construction cost accurately and in less time.

FastPIPE™ applies interactive Windows Graphics to make the estimating process easier. Theestimator can view what he is taking off.

With its improved detailed take-off capabilities the software can easily track diverse areas or location within a project.


FastWrap
FastWrap provides great assistance for the mechanical insulation contractor and gives piping & duct insulation support for mechanical, industrial piping, plumbing, HVAC piping, HVAC duct and industrial duct.


QuickPen Autobid
QuickPen AutoBid SheetMetal software empowers HVAC estimator to create HVAC and Sheet metal estimate quickly and accurately.  HVAC and sheet metal estimators can raise their bid volume by modifying bids quickly and take action to last-minute changes in bidding process to meet up the most deadlines.

QuickPen AutoBid SheetMetal  save time for HVAC estimator to a great extent as it can easily segregate an area in GTO and transfer it to alternate or a different HVAC system.

The estimator can also apply it at inventory time to cost and produce spreadsheets of stocked material.


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Wednesday, September 7, 2011

360Value® enhance the property valuation system



Xactware and AIR Worldwide jointly launches 360Value®, a web-based replacement-cost estimator for residential properties, commercial properties and agricultural. The software is ideal for insurance agents, underwriters, inspectors, property owners and others to figure out the cost to rebuild properties, make property valuation, improve risk management and enhance business decisions.

360Value® is applied for the following purpose :-
To determine the replacement costs at the time of quoting, underwriting data analysis and management reporting
Rationalize workflow through property prefill
To update estimates for policy renewal
To accomplish periodic assessments of a portfolio to find out policies with obsolete estimates and property information.
Manage catastrophe risk
Enhance the policyholder experience
Consolidate underwriting data

This component based software is liable for all the material and labor components required to reconstruct the structure. 360Value obtains the underlying material and labor cost data, in part, by analyzing more than 3 million damage-repair estimates each year.

360Value connects the underwriting and claims functions to facilitate the insurers to predict the claim loses and speed up the claim process. The adjuster are able to bring the replacement cost up to date and evaluate the property details before a site visit.

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Monday, August 29, 2011

The American Concrete Institute recently publish 318-11 building code


The American Concrete Institute has launched ACI 318-11 to be applied for all concrete design, construction, inspection, repair, and research professionals. The new publication includes most updated code necessary for concrete building design and construction together with the corresponding commentary.


ACI 318-11 will provide a great assistance to Engineers, architects, contractors, specifiers, building officials, students, and professors.


Key features of  ACI 318-11:
There are advancements for Reinforcement detailing for seismic applications which include reinforcement detailing for distinct segments of special structural wall systems, detailing of horizontal bars at special boundary elements, and tightened confinement details for flexural hinge regions of large beams.


In order to verify the concentration of dissolved sulfates in water, brackish water, or seawater, Test methods ASTM D516 and D4130 should be applied and to find out percent sulfate by mass in soil ASTM C1580 should be followed.


Recently accessible bend bar types are incorporated into proper provisions. Grade 80 bend bars in compliance with ASTM A615 or A706 should be utilized for non-seismic applications. Zinc and epoxy dual-coated reinforcing bars per ASTM A1055 are also now recognized.


Test records required to find out standard variation for a mixture design should be up to 24 months old. In order to execute acceptance testing of concrete  the testing agencies must adhere to ASTM C1077.


Detailing requirements for ties for circular columns have been explained thoroughly and addition made for minimum reinforcement of deep beams.


There are amendments for Detailing requirements of temperature and shrinkage reinforcement for post-tensioned slabs.



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Thursday, August 25, 2011

DraftLogic Electrical & ConEst IntelliBid 7.0 are now integrated to make electrical estimating process 14 time faster

DraftLogic Electrical, the leading electrical design software is now seamlessly integrated with ConEst IntelliBid 7.0 to feed all line voltage elements of an electrical design into electrical estimating software mechanically. Now electrical systems design, takeoff, and estimating will be put in under one roof.   

This combination will provide some great benefits to electrical designers and estimators as they can easily verify and optimize their estimate because there is NO counting, NO scaling, NO measuring, and NO take off work for line voltage systems.

The electrical designers and estimators will be able to create a completed electrical design and estimate from an architectural floor plan fourteen times faster.  

By utilizing this combination DraftLogic Electrical users can export all elements (devices, feeders, and branch circuit wiring as well as luminaires, receptacles, and motors) of their electrical design with associated details into ConEst IntelliBid's count sheets to get rid of manual counting and data entry.

Panel schedules for every panel and every circuit are settled.  Every interconnection from every Branch Circuit wiring run is settled together with support for DraftLogic Electrical's multiple circuit home run groupings facilitating the estimator not to perform any take-off and scaling work.  Vast detail about each piece of switch gear, motor, and feeder is fed into their respective count sheets, saving thousands of keystrokes.


Watch this video for live presentation


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Thursday, August 18, 2011

Related Costs of a built construction

The owner should take into consideration the preliminary capital cost and the consequent operation and maintenance costs for a building construction. The cost component is formed with these cost categories.

The capital cost relates to the expenditures required for initial formation of the construction. The capital cost consists of land acquirement expenses along with assembly, holding and improvement, Architectural and engineering design, Construction financing, Planning and feasibility studies, materials, equipment and labor, Insurance and taxes throughout construction, Owner's general office overhead, equipment and furnishings not taken in construction, Inspection and testing.

The operation and maintenance cost over the project life cycle for succeeding years should comprise of relevant land rent, Labor and material for maintenance and repairs, cyclic renovations, Insurance and taxes, Financing costs, Utilities, Operating staff, Owner's other expenses

The extent of these costs varies according to nature, size and location of the project in addition to the management organization.

In order to compute the life cycle costs the owner should also consider the equivalent operation and maintenance cost of each alternative for a suggested construction.

In a construction budget there should be arrangements for allowance of contingencies or unexpected costs all through the construction process. This contingency must be contained in each cost item or incorporated in a single category of construction contingency. The amount of contingency depends on historical experience and the predictable complexity of a particular construction project. The contingency expenses for a construction may be associated with design development alterations, schedule adjustments, general administration changes (such as wage rates), contradictory site conditions for those anticipated, Third party obligations required for the duration of construction, as for example new permits.

The owner can avail the contingent amounts not expend for construction near the end of construction to the owner. These amounts can also be considered as additional project elements.

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Wednesday, August 17, 2011

Carbon Footprint - A brief overview

A carbon footprint is the total assessment of greenhouse gas (GHG) emissions produced through transport, land clearance, the production and consumption of food, burning of fossil fuels, like natural gas, crude oil and coal, manufactured goods, materials, wood, roads, buildings, and services. It is generally expressed in terms of the amount of carbon dioxide, or its alike other GHGs (methane, ozonem, nitrous oxide), emitted. These greenhouse gases are converted into the amount of CO2 affecting the global warming.

The carbon footprint is a division of the ecological footprint and of the more comprehensive Life Cycle Assessment(LCA). A carbon footprint is calculated for the time period of a year.

A carbon footprint is categorized as the primary footprint and the secondary footprint.
1. The primary footprint arises from direct productions of CO2 from the burning of fossil fuels together with domestic energy consumption and transportation (e.g. car and plane).
2. The secondary footprint arises from the indirect CO2 productions with the whole lifecycle of usable products related with their manufacture and eventual breakdown.

Carbon footprint provides great effect on population, economic output, and energy and carbon intensity of the economy. So once the carbon footprint is set up, some steps should be taken to decrease the amount of carbon footprint. These steps range from technological developments, better process and product management, development of substitute projects like solar or wind energy or reforestation, changed Green Public or Private Procurement (GPP), decrease the amount of energy for production requirement, decrease the reliance on carbon emitting fuels, carbon capture, carbon offsetting, consumption strategies.

In the medium- and long term, the carbon footprint has to be diminish to less than 2'000 kg CO2 per year and per person for a sustainable living.

Once the greenhouse gas emission is ascertained, they should be converted to CO2 equivalencies. Suppose one has 100 grams of NH2, then you have to convert applying a conversion factor so that it is in terms of CO2. Emission factors (grams per mile) are available from different ranging from the Environmental Protection Agency (EPA), the Energy Information Administration (EIA), and the International Panel on Climate Change (IPCC).

If you get the emission factor (e.g., 200 grams/mile) and the activity (e.g., 100 miles), the greenhouse gas emissions can be easily calculated (i.e., 200 x 100 = 20,000 grams). Each of the emissions that are calculated is specific to a pollutant (e.g., CO2, CH4, etc.).

Few people prefer to convey their carbon footprint in kg carbon rather than kg carbon dioxide. One is able to convert kg carbon dioxide in kg carbon by multiplying with a factor 0.27 (1'000 kg CO2 equals 270 kg carbon).

Carbon Footprint Calculator :
Online
Offline

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Tuesday, August 2, 2011

How to prepare a bid estimate to win a project

A bid process is required to award the most jobs in construction industry. In a bidding contest the lowest bidder will be awarded the contract. Estimating a construction bid involve some knowledge of the building process.

The bid estimate is specific to the project conditions illustrated in the plans and specifications. The bid estimate is required by contractors and subcontractors for bidding purposes or the owner to appraise bids.

In order to prepare an accurate construction bid, the most current drawings, project specifications and copies of any addenda or change bulletins that have been issued are required. The company who is calling for the bid should render all of these documents. In case the drawings are submitted from a plan room, the addenda and bidding requirements should be checked properly.

Review the drawing and floor plans. Then review the title and symbols pages for any general project requirements.

Review the project specifications for getting most sets of construction documents. Read the section related with your trade and read the prelim section featuring general project conditions.

Measure material quantity by executing a material takeoff. As for instance, an electrical contractor should take into consideration the receptacles, switches, junction boxes, light fixtures, and length of wires and conduits along with panels, transformers and any electrical connections for equipment or mechanical work. These estimates will sum up the total material price.

Work out the labor costs. Find out the time frame for completion of the job and multiply this number of hours with the average wage plus any labor burden to ascertain the total labor costs.

Put material and labor costs together and comprise any special fees like permits, wage scale, bonds, insurance premiums or other costs. Multiply the total dollar figure with an appropriate percentage to contain overhead and profit.

Finally prepare your bid form putting price, complete scope of work and the name of the project.
In case the project is different from typical designs, the contractor should evaluate the actual cost of construction by taking the actual construction procedures to be used and the related costs.

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Saturday, July 30, 2011

Some new technologies for Perfect bidding and estimating

Perfect bidding and estimating plays a vital role for construction industry to measure the profitableness in the construction industry. In order to achieve this every construction firm should utilize right technology as it will develop and increase functionality across the construction job cycle and create more value to contractors.

C-BID Services (www.cbidservices.com, ) a leading provider of comprehensive bid solicitation is making partnership with PlanSwift, a takeoff and estimating solution by Tech Unlimited Inc. C-BID’s online planroom assist you to store, organize and distribute your plans online from one easy to use centralized location with a bid-document library where significant bid information (project documentation, up-to-date bid information, drawings, specifications, and addenda ) can be accumulated.

Online plan room also contains a digital filing tool that can be utilized by bid participants to invite, bid and respond. As the plan room utilizes a recognizable approach to folder structure and document organization, it can be easily incorporate into workflow.

By contributing The Plan-Room digital file tool to PlanSwift takeoff and estimating software, C-Bid and Tech Unlimited can greatly influence the general contractors for getting rid of manual takeoffs and lessen the margin for error by storing bid documents in the cloud.

Recently, new technology incorporations between JB Knowledge Technologies’ SmartBidNet, www.smartbidnet.com, College Station, Texas, and jobsite123.com, www.jobsite123.com, Fort Lauderdale, Fla., will connect general contractors employing SmartBidNet with subcontractors on jobsite123.com. This will enhance bidding and estimating for both general contractors and subcontractors.

Besides, SmartBidNet and Cloud Takeoff from To Scale Software, www.toscaleplans.com, Cincinnati, Ohio, built up a new partnership to meliorate the data contribution and collaboration for GCs and subcontractors throughout the bidding and takeoff process.

These types of partnerships are creating new opportunities to bid projects efficiently in technology-advanced construction marketplace.

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Tuesday, July 26, 2011

Construction Contract - General Overview

A construction contract is a contract purposely carried off for the construction of an asset or a group of interdependent or interrelated assets relating to the design, technology and function or ultimate purpose or use.

A fixed price contract denotes to a contract where the contractor consents to a fixed contract price or a fixed rate per unit of output, which may be subject to cost escalation clauses in some incidents.

A cost plus contract denotes to a contract where the contractor is recouped for permissible or otherwise defined costs in addition percentage of these costs or a fixed fee.

Under IAS 11, if a contract addresses two or more assets, the construction of each asset reported for individually if (a) separate proposals were submitted for each asset, (b) portions of the contract regarding each asset were negotiated independently, and (c) costs and revenues of each asset can be evaluated. If not, the contract is reported for in its entireness. [IAS 11.8]

Two or more contracts are accounted for as a single contract if they were negotiated together and the work is interconnected. [IAS 11.9]

If a contract provides an alternative to order one or more extra assets, construction of every extra asset is accounted for as a separate contract if either (a) the additional asset dissents considerably from the original asset(s) or (b) the price of the additional asset is separately negotiated. [IAS 11.10]

Schedule of Quantities
A schedule of quantities is formed for all the projected works after the creation of architectural and engineering design. The true project cost will be determined by putting estimated unit rate adjacent to each work item. In order to keep the design intact the cost of budget should be amended with the change of building material or lower requirement of specification.

Estimation / Cost Planning
An estimate of capital cost along with direct & indirect cost and an estimate of capital expenditure containing plant , labor , material , temporary works , fixed overhead , subcontractors , suppliers , operation and maintenance etc. should be prepared for financial schedule to evaluate the economic viability. Simultaneously, an income schedule must be set up for a commercial project to anticipate the profitableness and rate of return.

Financial Support
Financing of a project, particularly for a commercial project, may significantly affect the choice of project size and type of contract to be selected by the client. In case the financial status mainly governs the size and sequence of the project, the client itself should know well about the financial schedule of its capital investment and expenditure. If short of funding, it should look for supports well in advance from outside parties or banks when necessary.

Contingency
In spite of preliminary investigations in engineering design stage, there are always possibilities of experiencing unanticipated problems after the commencing of work. With the purpose of doing away with the situation of running out of budget, the client or its engineer frequently take into accounts a contingent sum of money to cope with the unpredicted additional works.

Preparation of Contract Documents
During the design phase the engineer should have arrange for the right form of contract documents to be utilized with construction to the client. Sincere attention and sufficient time should be given to organize the contract documents failing which may cause sudden additional expenditure. Now-a-days some common forms of contract known as FIDIC Contract are available.

Preparation of Tender Documents
At the time of submitting tenders some vital information like represent the full design , detailed requirements , stage completions of works , contractor’s responsibilities , terms of payment and any other special conditions should be included into tender drawings , specifications , bills of quantities , works programme and the contract documents so that the renderers’ can easily understand the value of work to render a competitory but precise quoted price to cover the whole of the work. Inadequate information in the tender documents will cause disputes and claims accordingly throughout and at the end of the contract.

The following documents should be included into a tender:
a) Instructions to tenderers
b) Form of Tender
c) General Condition of Contract
d) Special Condition of Contract
e) General Specification
f) Particular Specification
g) Bills of Quantities
h) Methods of Measurement
i) Tender Drawings
j) Additional appendices
k) Form of Agreement

Preparation of Bills of Quantities (BoQ)
The bill of quantities contains a schedule of predetermined work items for item-by-item portion of contract works. It presents the brief description of the necessitated work and with estimated quantity taken off from the tender drawings. To get over the complete work the contract may include a series of bills which constitute a part of the tender documents for the renderers to estimate against each item with a unit rate or unit price. On the ground of the total offered price will then be developed. Assessment of the BoQ items will be based on the “preamble” and compliant with the process described in the “Standard Method of Measurement (SMM)”. A brief examination must be carried out to resolve the errors related with the “BoQ unit” and the numerical figures of the “ BoQ quantity”.

Though construction contracts are considered as the systems for evaluation construction cost, they also constitute the allotment of risk to the different parties involved in the construction. The owner is empowered to select the type of contract to be utilized for a specific facility to express the terms in a contractual agreement.

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Wednesday, July 20, 2011

Permits & Building Codes for Construction

Building codes represent a set of regulations which state the minimum conditions necessary to safeguard life, safety and protect the public welfare through regulating the design, construction practices, construction material quality (including fire performance) location, occupancy, and maintenance of buildings and structures.

The Code and Guidelines delineate the responsibilities of clients, project managers, contractors, subcontractors, consultants, related entities, industrial associations and employers in the construction industry.

State governments have the authority to set up such regulations and may pass on all or part of this authority to counties or municipalities.

Most state and local jurisdictions prefer to accept the model building codes maintained by the International Code Council (ICC). Among the ICC’s family of International Codes are the International Building Code (IBC), which comprises requirements regarding almost all types of new buildings, and the International Residential Code (IRC), which includes requirements related to new one- and two-family dwellings. Some of the provisions within these codes are proposed for ensuring that structures are able to sufficiently reject seismic forces and remain safe during earthquakes.

When modulating materials, many of the model buildings codes pass on to quality standards developed by standard-setting organizations for example the American Society for Testing and Materials (ASTM). Some building codes and insurance rating organizations also trust on test information from Factory Mutual Research (FM) and Underwriters Laboratories Inc. (UL).

American National Standards Institute (ANSI)
It is a privately held non-profit association that manages and organizes the U.S. voluntary standardization and conformity assessment system.

US DOE Energy Efficiency and Renewable Energy (EERE)
Provides a guide to building codes all over the nation. Know about federal construction regulations and rules.

American Society of Heating, Refrigerating, and Air-Conditioning Contractors (ASHRAE)
Provides links to HVAC standards in addition to training, events, etc., for HVAC contractors.

Building Codes, Construction Standards, Building Permit Information & Links
Get relevant data about building code officials, code books, building permit departments, national and international construction standards, model energy codes, and residential construction guidelines.

Building Codes & Standards - Information Sources)
It is a division of the University of California at Berkeley's Environmental Design Library and provides links to a diversity of building codes (including obscure ones) and code organizations.

Code Check
This site provides a guide to writing safe codes for plumbing, mechanics and homes.

Code Links and Other Resources
This site generates a thorough and searchable listing of building codes, code-writing organizations, and standard-writing organizations.

NCSBCS
The National Conference of States on Building Codes and Standards. It contains an well-organized, supportive system of building regulation to gurantee the public’s safety in all buildings, residential and commercial.

Building Energy Codes
DOE's Building Energy Codes Program is an information hub on national model energy codes.

National Fire Protection Association (NFPA)
This site provides online database for codes and standards along with important safety information on demand. Public safety can be improved through the adoption and enforcement of key ANSI codes and standards.

Americans with Disabilities Act (ADA)
Online government code database for the ADA includes design standards, enforcement, code certification and new or proposed regulations.

Florida Building Codes Online
This site also provides online database for building codes.

Online Permit Resources
Permit Place
This site contains links to most of the United States local municipalities' permits. In case of requiring a building or environmental permit, just find your city and click the link.

US Census Permits Index
This Census Bureau site lets you search for permits issued by state, metropolitan area, and other criteria, and includes updated statistics on national building permits as well as documentation.

Accela Citizen Access

Posted by Rajib Dey
Business Development
Global Associates
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Sunday, July 17, 2011

Cost Estimate Pricing Methods

There are generally two methods available for estimating prices. In one method previous bid prices are considered as a fundament for constituting prices on the suggested project. In other method one has to formulate a total analysis of production rates, labor costs and material costs.

These methods can be applied independently or in combination.

Previous Bid Prices Method

This method is extensively used in the construction industries and the following factors should be kept in mind while applying this method.

Apply this method for similar size projects and quantities must be interchangeable for individual items.

Give careful consideration for using the average of the 3 low bidders, or the second low bidder, or probably implementing an increase factor to the low bid.

Previous bid prices will be amended as per the proposed modification in the Construction Cost Index among the date of the old bid and the date of the expected new bid.

The reference bid price has to be fine-tuned to meditate diverse conditions among the reference project and the project for which the cost estimate is being developed. This may contains conditions of divergences in type of terrain, geographical location, soil, traffic and specifications.

Lump sum bid prices or unit prices for items of work (e.g. culverts) that contains diverging amounts of other concerned work should not be used.

Cost estimators will utilize the recent bid prices from related projects undergoing competitive bidding while coming to an estimated price for the individual contract items of work.

Complete Analysis Method

This method may be applied occasionally for earthwork items where rock or unusual material hauling is involved or for lump sum items for example signals and lighting. The operation is examined, production rates are adopted and material lists are ascertained with this method. The cost of materials is established by means of existing price lists. In order to find out the costs labor and equipment hours are established with production rates multiplied by the individual labor rates and equipment rental rates.

The final estimate of cost will be ascertained by adding overhead costs and profit. Here probable premium pay for overtime on night work and subsistence should also be taken into consideration. On larger projects with long time limits, it is essential to decide if the majority of a work item will be performed early or late in the project. To provide for work which is not completed early in the project, it may be necessary to project wage scales, rental rates.

Posted by Rajib Dey
Business Development
Global Associates
A pioneer company in construction estimating
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Some exclusive journals containing useful information on construction estimating

Construction Estimating Journal contains various types of compact articles, case studies to simplify the construction estimating process.

Gain knowledge on changing cost estimating methods and techniques and how they are being applied to make better your decision making and benefit an organization.

Use innovative thinking from industry leaders, including the experts who work on the construction estimating projects.

H. G. and F. A. J. Gonsalves. 1994. Life cycle management: An integrated approach to managing investments. Journal of Cost Management (Summer): 35-48.
Read More....

Albright, T. L. and H. Roth. 1993. Controlling quality on a multidimensional level. Journal of Cost Management (Spring): 29-37.
Read More....

Dr. Gianluca di Castri, Italy “Risks and Disruption in Engineering & Construction Project” (2003 – ACostE Seminar, London, England)
Read More....

Cost Evaluation of Construction at 500 Bed Tertiary Care Teaching Hospital.
Read More....

Construction Congestion Cost (CO) Traffic Impact and Construction Cost Robert I. Carr, Ph.D., P.E. Professor Emeritus of Civil Engineering
Read More....

Dr. Kenneth K. Humphreys, PE CCE, United States “Conducting Project Risk Analysis: How to Do It and How Not to Do It” (2003 – NORDNET, Oslo, Norway)
Read More....

Dr. Steen Lichtenberg, Denmark “How to Avoid Overruns and Delays Successfully – Nine Basic Rules and an Associated Operable Procedure” (2004 – Hanscomb-Means Report)
Read More....

Dr. Gianluca di Castri, Italy “Risks and Disruption in Engineering & Construction Project” (2003 – ACostE Seminar, London, England)
Read More....

Larry R. Dysert, CCC, United States “So You Think You’re an Estimator” (2005 – AACE International, New Orleans, Louisiana, USA)
Read More....

John A. Walewski, G. Edward Gibson, Jr. and Ellsworth F. Vines, United States “Risk Identification and Assessment for International Construction Projects” (2006 – Ljubljana, Slovenia)
Read More....

Dr. Maarten Vrijland, The Netherlands “Cost Overrun in the Public Sector: A Case Study” (2004 – Cape Town, South Africa)
Read More....

Dr. J. J. P. (Basie) Verster, South Africa “Real Time Integrated Cost Planning and Control – Mitigation and Resolution of Claims” (2006 – Ljubljana, Slovenia)
Read More....

Dr. J. J. P. (Basie) Verster, South Africa “Managing Cost, Contracts, Communication and Claims: A Quantity Surveying Perspective of Future Opportunities” (2006 – Plenary Lecture, Ljubljana, Slovenia)
Read More....

Construction Cost Management: an analytical taxonomy for critical literature reviewby Mahanim Hanid
Read More....

Posted by Rajib Dey
Business Development
Global Associates
A pioneer company in construction estimating
Join our estimating forum

Friday, July 15, 2011

INTERNATIONAL CONSTRUCTION COST ESTIMATING INDICES

The construction industry is one of the driving areas in the economy that provides a noteworthy contribution to GDP and a serious effect on the activity in other industries. The construction industries frequently experiencing their cost variations best stand for the inflationary/deflationary changes of a specific sector of Construction Industry.

Indicators of price movement of construction outputs are considered to be a precious tool in economic analysis.

Construction Cost Index signifies the average cost movement over time of a fixed basket of representative goods and services related to Construction Industry.

The contractors have to undertake preconstruction services and procurement strategies to manages the market risks associated with cost-related issues arising from the restrained demand and increasing material cost.

So accurate construction cost forecast along with building costs and price trends is very much required for construction industry and Federal and State governments.

There are several internationally recognized standard cost data indices available in the market which are published by some of the renowned construction companies. The Cost Indices listed are taken from the referenced construction publications and include most recent Construction Cost Index, Building Cost Index, Material Cost Index.

These cost indices are established by several factors considered on a nationwide basis, together with labor rates and productivity, material prices and the competitive condition of the marketplace. These indexes also reflect the modification of computations that resulted in insignificant changes to some of the construction cost indexes. Separate series of index numbers are accumulated to capture the price movements at international and Industry subsection level.

Given below the detailed list of some leading construction companies and their standard cost data indices :-

bls.gov - ect
bls.gov - cpi
Compass International
ENR - current costs
fmlink - Surveys Trends
Reed construction data
Turner Construction
usbr.gov - cost trends


Posted by Rajib Dey
Business Development
Global Associates
A pioneer company in construction estimating
Join our estimating forum