The Strength of Structural Elements: A Textbook for Students, Engineers and Architects

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Scott, Greenwood, 1917 - Strains and stresses - 202 pages
 

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Page 8 - Rolling loads. 16. — In cases where a rolling load actuated by mechanical power is to be provided for such rolling load shall be taken as equivalent to a static load 50 per cent, in excess of the actual rolling load. The positive and negative bending moment at every cross section due to every position of the rolling load shall be properly provided for.
Page 81 - ... and the total moment of resistance is total thrust (or pull) x distance of centre of thrust from reinforcement EXAMPLE i. — A reinforced concrete beam 20 inches deep and 10 inches wide has four bars of steel i inch diameter placed with their axes 2 inches from the lower face of the beam. Find the position of the neutral axis and the moment of resistance exerted by the section when the greatest intensity of compressive stress is 100 Ibs. per square inch. What is then the intensity of tensile...
Page 8 - ... normal to the direction of every wind. (For pressure on panels of external walls see regulation 130.) 22. — All structures or attachments whatsoever In connection with a building, including towers or other parts which extend above the roof, flat, or gutter adjoining thereto, shall be so designed as to resist safely a horizontal pressure equivalent to a static pressure of not less than forty pounds per square foot of the whole projected surface normal to the direction of every wind. Working...
Page 7 - Hard brick (including London Stock) in cement mortar . 8 „ Ordinary brick in cement mortar . . . . . 5 „ The loads on the following stones should not exceed: Granite . . . . 45 to 60 tons Per Sq.
Page 179 - J tons per foot run, the second span of 80 feet is loaded with 2A tons per foot run. Find the values of the supporting forces and the maximum bending moment for the whole girder. Both ends of the girder are free. (ICE, feb ., 1902.) , lo.

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