ly to the cover plate of the topchord. Thus a rigidly connected cross frame is formed in eachpanel, which besides performing the duty of transfsrring the windstresses to the end portals, also serves to help in stiffening thebridge. highway bridges and has proved efficient in practice, the… … back to back. The rods and angles are at right angles to each other. This de- tail is objectionable as tensile stresses. tion consisting of two angles placed caused by the overturning moment, are Pig. 39 produced in the rivets in the angles. 25
Bridges · Theses
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