I.C.S. Reference Library, Band 34

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International Textbook Company, 1905
 

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Seite 29 - ... and the perpendicular distance from the line of action of the force to the axis of rotation, F times d in figure 2.5.
Seite 26 - B, from B to C, from C to D, from D to E, and from E to A ; and measure the distances AB, BC, CD, DE, and EA.
Seite 1 - If the soil is a layer of dry sand fifteen feet or more in thickness, and without admixture of clay, loam or other foreign substance, it shall not be loaded more than at the rate of four thousand pounds per square foot...
Seite 7 - But if the Superintendent of Buildings shall have cause to doubt the correctness of said estimate he is empowered to revise and correct the same, and for the purpose of such revision the officers and...
Seite 7 - And thereupon the owner or occupant of said building, or of any portion thereof, shall post a copy of such approved estimate in a conspicuous place on each story, or varying parts of each story, of the building to which it relates. Before any building hereafter erected is occupied and...
Seite 9 - Where no test of the sustaining power of the soil is made different soils, excluding mud, at the bottom of the footings, shall be deemed to safely sustain the following loads to the superficial foot, namely: Soft clay, one ton per square foot; ordinary clay and sand together, in layers, wet and springy, two tons per square foot...
Seite 88 - Unsupported length of column, in inches. r = Least Radius of Gyration, in inches.
Seite 7 - Art. 54; and then we use formula 9, as in the examples of the preceding article. Example. It is required to compute the radius of gyration of the section represented in Fig. 30 (page 52) with respect to the axis AA. In example 1, Art. 54, it is shown that' the moment of inertia of the section with respect to the axis AA is 429 inches4.
Seite 72 - No work shall be done in freezing weather, except when the influence of frost is excluded. After prolonged freezing weather, the work shall not be taken up again in warmer weather until the approval of the building authorities has been obtained. Until sufficient hardening of the concrete has occurred, the structural parts shall be protected against the effect of freezing and premature drying as well as against vibrations and loads. If freezing weather occurs during the hardening period, the time...
Seite 38 - I r, in which 5 = allowable compressive stress for steel in pounds per square inch, / = length of column in inches, r = least radius of gyration in inches.

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