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为了研究腹板开洞压型钢板组合梁在静载作用下,洞口截面弯剪比M/V、洞口上部栓钉连接件数量以及洞口上部混凝土板对组合梁受力性能的影响,对4根腹板开洞的压型钢板组合梁和1根腹板开洞钢梁及1根普通压型钢板组合梁进行了静载试验,试验结果表明:组合梁的承载力随着洞口截面弯剪比M/V的增大而增大,但洞口两端的相对挠度随弯剪比M/V的增大而减小,呈反比关系;腹板开洞压型钢板组合梁的极限承载力随洞口远端到组合梁支座间栓钉连接件数量的增多而提高;洞口上方组合板对压型钢板组合梁洞口截面的抗剪和抗弯承载力有较大贡献。
In order to study the influence of static load, the ratio of bending and shearing of section to the M / V, the number of pegs on the upper part of the hole and the behavior of composite beams on the composite beams, The results of static load test show that the bearing capacity of composite beam increases with the ratio of shear to shear of M / V But the relative deflection of the two ends of the hole decreases with the increase of the ratio of bending and shearing to M / V, which is inversely proportional to the ultimate load. The number of pegs between the pedestal support increases with the increase of the number of joints; the composite plate above the hole on the section of the composite plate beam bending shear and flexural capacity of a greater contribution.