through bridge
下承式系杆拱桥 through tied-arch bridge
下承式钢板梁桥 trough steel plate bridge
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分3个阶段10种荷载工况进行模型的力学性能试验，研究简支下承式钢桁结合梁桥的受力性能。
The mechanical property test of the model covering 3 stages under 10 load conditions is carried out to study the loading property of through truss composite beam with simple support.
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下承式桥 （ xia cheng shi qiao） through bridge 桥面系设置在桥跨主要承重结构（桁架、拱肋、主梁）下面的桥梁，即桥梁上部结构完全处于桥面高程之上的桥被称为下承式桥。分为下承式钢管混凝土系杆拱桥。
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