that, in otherwordvS, the beam would be safer without the truss-rods thanwith them. To some this may appear paradoxical; but in order to ascer-tain how far the statement is entitled to credit, let us assume the * See Report to the Gorernment Commission, in Appendix No. II. 28 ON COMPOUND OR TRUSSED… … are applied, one on each side of the beam, to assist in supportingthe weight w. Experimentalists having found that wrought iron possessesgreat powers of resistance to extension, while cast iron presentsgreat powers of resistance to compression, it became a matter ofinquiry how far, and under what…
Building, Iron and steel
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