. Practical structural design; a text and reference work for engineers, architects, builders, draftsmen and technical schools;. he bot-tom closing line, the intermediate horizontal line being disregarded. EXTERNAL FORCES 17 In Fig. 7 is shown the actual shear when the loads have a defi-nite width and when the beam rests on a support of a definitewidth. At the face of thesupport the shear is a maxi-mum and it is zero at theend of the support. It is notusual to show this in sheardiagrams, for it comphcatesthe drafting work withoutenough benefit to pay for thetrouble. The slight differenceincreas
. Practical structural design; a text and reference work for engineers, architects, builders, draftsmen and technical schools;. he bot-tom closing line, the intermediate horizontal line being disregarded. EXTERNAL FORCES 17 In Fig. 7 is shown the actual shear when the loads have a defi-nite width and when the beam rests on a support of a definitewidth. At the face of thesupport the shear is a maxi-mum and it is zero at theend of the support. It is notusual to show this in sheardiagrams, for it comphcatesthe drafting work withoutenough benefit to pay for thetrouble. The slight differenceincreases the factor of safety. Beams Resting on TwoSupports To determine bending mo-ments on beams on two ormore supports, it is necessaryto find first the amount ofthe reactions. In Fig. 8 a concentratedload is carried on a beamresting freely on two convenience we adopt theconventional method of be-ginning at the left end as inreading. The word conven-tional has the same root formas the word convenience^so may be easily remembered. Common sense assures usthat if the load is in the mid-dle, one-half will be carried. MQnien+ Diagram
Size: 1245px × 2007px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookidpracticalstr, bookyear1921
