trapeze beam
... trapeze bar 悬吊杆 trapeze beam 悬吊梁 trapezium distortion 梯形失真 ...
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长跨距悬吊体系桥梁 long span cable-supported bridge
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文章论述了在设计中采用钢屋架下弦两节点下悬吊双槽钢作为分布梁避免钢屋架下弦拉弯工作。
The double groove steel is suspended under the two nodes of bottom chord of steel roof truss to prevent the bottom chord from stretch bending.
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