Know the Difference

Source: AIA Knowledge Resources Team Summary The meanings of as-built drawings, record drawings and measured drawings can be confusing and misapplied, and the AIA receives many queries about the definitions and use of these terms in contemporary practice. As-Built Drawings: As-built drawings are prepared by the contractor. They show, in red ink, on-site changes to Read more

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MODULUS OF ELASTICITY: The ratio of stress to strain or the stiffness of the material of a structural member (resistance to deformation). Essentially, the modulus of elasticity is a more general term regarding the overall stiffness of a member.   E= Modulus of Elasticity. If E increases, then so does the stiffness.    MOMENT OF INERTIA: The Read more

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Post Tension Concrete Construction A simple explanation: PRE tensioned- cables are tensioned, and the concrete is cast around it. The tensioning is done BEFORE casting the concrete (PRE = before). POST tensioned- cables are placed inside of ducts or are greased to prevent bonding to the concrete, the concrete is cast around the cables, and Read more

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So there is a tricky thing to lumber.  I’m so used to it now I don’t even think about it now, I just know the differences.  But recently I saw an article on USA Today about a company suing Home Depot because the 2×4 they sold them was not actually 2 inches by 4 inches.  It Read more

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FOUR METHODS OF SPECIFYING PRESCRIPTIVE TYPE 1. PROPRIETARY SPECIFICATIONS CLOSED PROPRIETARY OPEN PROPRIETARY –BASE BID WITH ALTERNATES –LIST OF APPROVED MANUFACTURERS –BASE BID WITH APPROVED EQUAL 2. DESCRIPTIVE SPECIFICATION PERFORMANCE TYPE 3. PERFORMANCE SPECIFICATIONS PRESCRIPTIVE or PERFORMANCE TYPE 4. REFERENCE SPECIFICATION   [source: http://www.areforum.org/forums/member.php?118010-DaveW] Read more

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[source: http://www.areforum.org/forums/member.php?118010-DaveW] GENERAL CONDITIONS · General Conditions are an inherent part of the the Contract for Construction. · With the agreement govern the entire contract. · Contain contractual principles applicable to most projects with supplements for a particular project. · Contains broad aspects relating to the roles, rights and duties and responsibilities of the parties Read more

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Project Delivery Methods • Design-bid-build – Negotiated team • Construction management – CM as Advisor, CM as Agent – CM as Constructor • Design-build – Design-build as Developer • Bridging   Entities – Principal/Owner,  Agent, 3rd Party/Prime.   Others – Advisor, Subs, Consultants Multiple Prime – owner w/ subs (as primes, each contracted to owner) Many Read more

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