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  2. 1:5:200 - Wikipedia

    en.wikipedia.org/wiki/1:5:200

    In the construction industry, the 1:5:200 rule (or 1:5:200 ratio) is a rule of thumb that states that: . If the initial construction costs of a building is 1, then its maintenance and operating costs over the years is 5, and the business operating costs (salary of people working in that building) is 200.

  3. Construction estimating software - Wikipedia

    en.wikipedia.org/wiki/Construction_estimating...

    [5] As cost estimating programs became more and more popular over the years, more advanced features, such as saving data for reuse, mass project-wide changes, and trade-specific calculations, have become available. [6] For example, programs that are designed for building construction, include libraries and program features for traditional builders.

  4. Glossary of construction cost estimating - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_construction...

    A Allocation of costs is the transfer of costs from one cost item to one or more other cost items. Allowance - a value in an estimate to cover the cost of known but not yet fully defined work. As-sold estimate - the estimate which matches the agreed items and price for the project scope. B Basis of estimate (BOE) - a document which describes the scope basis, pricing basis, methods ...

  5. Construction surveying - Wikipedia

    en.wikipedia.org/wiki/Construction_surveying

    Plans would often show plan views (viewed from above), profile views (a "transparent" section view collapsing all section views of the road parallel to the chainage) or cross-section views (a "true" section view perpendicular to the chainage). In a plan view, chainage generally increases from left to right, or from the bottom to the top of the ...

  6. Value of work done - Wikipedia

    en.wikipedia.org/wiki/Value_of_work_done

    The value of work done (VOWD) is a project management technique for measuring and estimating the project cost at a point in time. It is mainly used in project environments of the Petroleum industry and is defined as the value of goods and services progressed, regardless of whether or not they have been paid for or received. The primary purpose ...

  7. Hudson Formula - Wikipedia

    en.wikipedia.org/wiki/Hudson_Formula

    [1] A claimant must prove a necessity to maintain resources on the project and an inability to re-allocate them to more profitable work and must give evidence of the processes within the head office to enable an assessment of the portion of overheads, if any, that are attributable to the delay caused by the breach. [2]

  8. Structural load - Wikipedia

    en.wikipedia.org/wiki/Structural_load

    For example, in designing a staircase, a dead load factor may be 1.2 times the weight of the structure, and a live load factor may be 1.6 times the maximum expected live load. These two "factored loads" are combined (added) to determine the "required strength" of the staircase.

  9. Building airtightness - Wikipedia

    en.wikipedia.org/wiki/Building_airtightness

    q L is the volumetric leakage airflow rate expressed in m 3 h −1; C L is the air leakage coefficient expressed in m 3 h −1 Pa −n; ∆p is the pressure difference across the building envelope expressed in Pa; n is the airflow exponent (0.5 ≤ n ≤ 1) This law enables to assess the airflow rate at any pressure difference regardless the ...