论文部分内容阅读
介绍了新型现场施工无焊接钢筋混凝土梁-钢管混凝土柱节点,并对其进行了抗震性能试验研究,获得了节点在柱顶低周往复荷载下的滞回性能。试验结果表明,该新型节点具有良好的延性以及耗能能力,可以满足工程需要,可代替外环板式钢筋焊接节点使用。同时,采用有限元分析方法,对试验进行了模拟,与试验获得骨架曲线进行结果对比,吻合良好。此外,基于节点试验模型改变了梁、柱以及牛腿等相关参数,分析不同参数对节点骨架曲线的影响,得到了节点的破坏模式以及影响因素。
The new site of welded concrete-filled steel bar-concrete filled steel tubular columns is introduced. The seismic performance of the new reinforced concrete beam-column joints is introduced. The hysteretic behavior of the joints at low column reciprocating loads is obtained. The experimental results show that this new type of joint has good ductility and energy dissipation capability, which can meet the engineering needs and can be used instead of the outer ring plate welded joints. At the same time, the finite element analysis method was used to simulate the experiment, which was in good agreement with the experimental results obtained by the skeleton curve. In addition, based on the node test model, the relevant parameters such as beam, column and cow leg were changed, the influence of different parameters on the skeleton curve of the node was analyzed, and the failure modes and influencing factors of the node were obtained.