File:Architect and engineer (1920) (14779901161).jpg

Identifier: architectenginee6220sanf (find matches)
Title: Architect and engineer
Year: 1905 (1900s)
Authors:
Subjects: Architecture Architecture Architecture Building
Publisher: San Francisco : Architect and Engineer, Inc
Contributing Library: San Francisco Public Library
Digitizing Sponsor: San Francisco Public Library

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figures arekept for every part of the operation, withsub-divisions covering material, labor,etc., on each operation, a mass of statis-tics is built up which is of interest andvalue to the builder but almost unintel-ligible to the layman. To make this formof information more readily appreciableby those who are not living with thesubject day by day, the accompanyingsketch has been made. 22 per cent to the structural cost of thebuilding. Here again each item is shownwith height proportional to its cost, andto the costs in the main building. In the building structure, as drawn,each item has a shaded portion at the leftend. This portion represents the percent-age of that item which was expended fordirect labor by the contractor. The por-tion not shaded represents materials andother necessary expenses. The drawing has been set up in theform of a manufacturing building withits adjoining power plant, in order tovisualize more clearly the case under dis-cussion. As the stories are added one by
Text Appearing After Image:
Illustration shows cost items entering into construction of amanufacturing building. This shows the various elements placedone over the other in about the order inwhich they occur during the progress ofthe building. Each is proportional inheight to the percentage which it repre-sents of the total cost of the building.Thus, the excavation shown at the bot-tom is 3.05 per cent of the structural cost.The largest item of all—that of concrete—is 19.2 per cent of the total. At theright has been placed a power house, theheight of which represents the percent-age which the various sub-contracts bearto the structural cost of the building.The items covered here are electricalwork, elevators, plumbing, heating andsprinklers, which all together add about one, for the various materials as they areadded, each structure is built up untilfinally, with the roof, we have reached100 per cent of the total cost. The percentage marks, shown at theleft, give a ready measure of the extentof the several i

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