ircular ares with 375 meters = 1,230 mon suspension bridge, the friction, if pins were used, feet radius. Their bottom flanges are straight, and The total permanent load of the girders is 2,787°2 tons. might cause bending of adjoining parts of the girders ; This load of 2,787 tons, distributed over… … minutes of are. ithe ti ture, even if the norma! bridge load (calcu- The vertical motion of the vertex is lated at 400 kilogrammes per square meter= therefore (the half span being 73°34 m. or 82 lb. per square foot) should be trebled. 240°5 ft.) 73°34 x 0°00583 = 0°42 m. ; or 21 cm. As two railway…
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