Adams, Henry · London, New York [etc.] Longmans, Green, and Co. · leaf 202
us or negative quantities thusobtained should equal the total of all the plus or positive quanti-ties. When the line of thrust passes below the rib, the ordinatesbetween are minus quantities; and when it passes above, they arepositive or plus. Tested in this way. Fig. 522 is proved to be… … perpendicular to the rib, as in Fig. 526. The shear is given by thecomponent of thrust at right angles to the direction of the rib. Thegreatest bending moment is found under the load, which is also theplace of greatest shear. The horizontal thrust could not have beendetermined had it not been given…
Building · Structural analysis (Engineering)
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