Cyclopedia of Architecture, Carpentry and Building: Carpentry. Stair-building. Estimating. The steel square

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American Technical Society, 1909 - Architecture
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Page 355 - REVIEW QUESTIONS. PRACTICAL TEST QUESTIONS. In the foregoing sections of this Cyclopedia numerous illustrative examples are worked out in detail in order to show the application of the various methods and principles. Accompanying these are examples for practice which will aid the reader in fixing the principles in mind. In the following pages are given a large number of test questions and problems which afford a valuable means of testing the reader's knowledge of the subjects treated.
Page 234 - SCALE OF WAGES The item of cost of labor, on construction of any kind, is at best a variable quantity, dependent to a large degree upon competition, demand, and labor organization. The cost of labor is steadily on the increase, while the hours of labor are continually decreasing.
Page 230 - Fig. 1. 2. To find the area of a triangle: Rule — Multiply the base by half the altitude.
Page 1 - Planning and Construction of High Office Buildings." "Architectural Iron and Steel, and Its Application in the Construction of Buildings," "Compound Riveted Girders." "Skeleton Structures,
Page 39 - Fig. 34. This joint makes a very good connection, and the cutting of the mortise does not weaken the piece of timber so much as does the mortise for a gained joint. It is especially applicable when it is desired to have the pieces flush on top, though it may also be used in other positions. When the top of the tenoned piece must project above the top of the mortised piece, the tenon may be cut as shown in Fig. 32. There are several ways of securing the tenon in place. The simplest is that shown in...
Page 26 - A very brief discussion of some of these properties or characteristics of timber will now be given in order that we may see what peculiarities of structure or of growth cause them. Hardness. If a block of wood is struck with a hammer when lying on a bench, the hammer-head will make an impression or dent in the wood, which will be deeper or shallower according as the wood is soft or hard. A wood is said to be very hard when it requires a pressure of about 3,000 pounds per square inch to make an impression...
Page 122 - D, the floor of which will be level, and the slope will start several feet away from the platform. Heavy Beams and Girders. For ordinary frame buildings, there will be no difficulty in obtaining timbers large enough for every purpose, but in large structures, or in any building where heavy loads must be carried, it is often impossible to get a single stick which is strong enough to do the work. In this case it becomes necessary to use either a steel beam or a trussed girder of wood, or to build up...

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