Statically indeterminate stresses in stiff framed structures . 71. produced by a given loeding, the average variation being only tento fifteen per cent. On the other hand, a slight change in k prod-uces a large change in the moments and reactions. These results are of interest when applied to the bent of amill building. In Fig. 54, if the kneebrace is a solid gusset plate, as is often the case, a rigid connec-tion exists between the truss and thecolumns? and the bent may be consid-ered as a three sided frame with atop girder of variable moment ofinertia. Since the least value ofn is undoubtedl
Statically indeterminate stresses in stiff framed structures . 71. produced by a given loeding, the average variation being only tento fifteen per cent. On the other hand, a slight change in k prod-uces a large change in the moments and reactions. These results are of interest when applied to the bent of amill building. In Fig. 54, if the kneebrace is a solid gusset plate, as is often the case, a rigid connec-tion exists between the truss and thecolumns? and the bent may be consid-ered as a three sided frame with atop girder of variable moment ofinertia. Since the least value ofn is undoubtedly greater thanand since a change in n does not have very much effect on the valueof H, it follows that the probable value of H will lie between thecurves for which n » % and n «oo f on Diagram II. Hence the leewardreaction due to a uniform horizontal wind load j£ on the side of thebuilding will be about ,3 f , and the reaction on the windward col-umn will be about ,7 |, This is quite different from the customaryassumption that the horizontal resctions on
Size: 1329px × 1880px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1915
