rts of an inch. In the construction of girders of this description, there appearsto be defects both in respect of the form and of the distributionof the material. Throughout the experiments the diagonalbeams b b were in a high state of tension, forming, with thebottom flange, the chief element of… … 118 EXPERIMENTAL INQUIRY OX THE from the diagonals a a. On the contrary, the diagonals a a arenot only weak and defective from their thin-plate form, but thecross diagonals e e are also inoperative, and become perfectlyslack, from the effects of tension upon the diagonal bars h b andthe bottom…
Building, Iron and steel
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