【摘要】 为了探究钢-UHPC组合梁中橡胶-短栓钉剪力件的抗剪性能，试验设计并制作了10个推出试件，研究橡胶套筒尺寸和加载制度对其抗剪性能的影响规律。试验结果表明：试件以栓钉剪断为主要破坏形式，并伴随栓钉附近局部混凝土压碎。橡胶套筒厚度对剪力件的抗剪承载力影响较小，橡胶套筒厚度为2mm的组合剪力件承载力为普通剪力件的94%。随着橡胶套筒厚度的增加，剪力件的抗剪刚度随之下降，最小为普通剪力件的87%；相对滑移则随着厚度增加而增加，最大为普通剪力件的142%。而随着橡胶套筒的高度增加，剪力件的抗剪承载力随之减少，橡胶套筒高度为50mm的组合剪力件承载力为普通剪力件的89%；随着橡胶套筒高度的增加，剪力件的抗剪刚度随之下降，最小为普通剪力件的75%；相对滑移则随着高度的增加而增加，最大为普通剪力件的137%。更多还原

【Abstract】 In order to explore the shear performance of rubber-short stud shear connectors in steelUHPC composite beams, 10 push-out specimens were designed and manufactured to study the influence of rubber sleeve size and loading system on its shear performance. The test results show that the main failure mode of the specimen is stud shear, accompanied by local concrete crushing near the stud. The thickness of the rubber sleeve has little effect on the shear capacity of the shear member. The bearing capacity of the composite shear member with the thickness of the rubber sleeve of 2mm is 94 % of the ordinary shear member. With the increase of the thickness of the rubber sleeve, the shear stiffness of the shear member decreases, and the minimum is 87 % of the ordinary shear member. The relative slip increases with the increase of thickness, and the maximum is 142 % of the ordinary shear member. With the increase of the height of the rubber sleeve, the shear capacity of the shear member decreases, the rubber sleeve height of 50mm combined shear member bearing capacity of ordinary shear member 89%; with the increase of the height of the rubber sleeve, the shear stiffness of the shear member decreases, the minimum of ordinary shear member of 75%; relative slip increases with the increase of the height of the shear member of the maximum of ordinary shear member of 137%.更多还原