钢与钢纤维混凝土组合梁栓钉连接件的性能试验

Performance experiment on stud connectors of steel and steel-fibre concrete composite beams

对钢与普通混凝土组合梁的栓钉连接件和钢与钢纤维混凝土组合梁的栓钉连接件进行推出试验.研究钢与钢纤维混凝土组合梁栓钉连接件的抗剪性能,并和钢与普通混凝土组合梁的栓钉连接件的抗剪性能进行对比.通过比较分析发现:钢与钢纤维混凝土组合梁栓钉连接件的抗剪承载力高于钢与普通混凝土组合梁栓钉连接件的抗剪承载力;钢与钢纤维混凝土组合梁栓钉连接件的极限承载力对应的滑移值明显大于钢与普通混凝土组合梁栓钉连接件的极限承载力对应的滑移值.对钢与钢纤维混凝土组合梁栓钉连接件抗剪承载能力的理论计算提出建议.

The experiments on stud shear connectors of steel-concrete composite beams and steel-steel fibre concrete composite beams were conducted. The shearing performances of the stud connectors of steel- steel fibre concrete composite beams were studied and compared with those of steel-concrete composite beams. The conclusions were as follows： the shear bearing capacity of the stud connectors of steel-steel fibre concrete composite beams was higher than that of steel-concrete composite beams; and the slip deflection corresponding to the biggest shear bearing capacity of the stud connectors of steel-steel fibre concrete composite beams was remarkably greater than that of steel-concrete composite beams. The theoretical calculation of the shear bearing capacity of the stud shear connectors of steel-steel fibre concrete composite beams was proposed.