腹板开洞压型钢板组合梁静力试验研究  

EXPERIMENTAL RESEARCH ON RIBBED SLAB COMPOSITE BEAMS WITH WEB OPENING UNDER STATIC LOAD

作　　者：江玮[1,2] 胡夏闽[2] JIANG Wei;HU Xiamin(Nanjing Vocational Institute of Transport Technology, Nanjing 211188, China;College of Civil Engineering Nanjing Tech University, Nanjing 210009, China)

机构地区：[1]南京交通职业技术学院,南京211188 [2]南京工业大学土木工程学院,南京210009

出　　处：《钢结构》2017年第11期42-46,共5页Steel Construction

基　　金：江苏省重点实验室开放课题(JSCE1202)

摘　　要：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 investigate the effects of moment-shear ratio M/V at the opening, concrete slab above the web opening and the stud shear connectors on the bearing capacity tinder static load, a series of static tests were performed on four composite beams with web openings, one steel beam with web opening and one traditional composite beam. The composite beams have ribbed slabs with the ribs oriented transversely. The experimental results indicated that the bearing capacity of the composite beam increased with the increase of bending-shear ratio M/V at the web opening; the relative deflection at the two ends of the web opening decreased with the increase of bending-shear ratio M/V; the ultimate bearing capacity of the composite beam increased with the increasing number of stud shear connectors from the far end of the web opening to the support; the concrete slab above the web opening had a significant contribution to the shear and bending capacity of the beam section with web opening.

关 键 词：压型钢板组合梁 腹板开洞 抗剪性能 挠度 滑移 

分 类 号：TU398.9[建筑科学—结构工程]