钢套箍钢筋混凝土梁柱节点低周反复加载试验研究

发布时间：2018-04-27 01:25

本文选题：钢筋混凝土节点 + 钢套箍　；参考：《振动与冲击》2014年19期

【摘要】：对于常规钢筋混凝土梁柱节点,经常出现梁纵筋在节点内紧密排列、左右交错而导致混凝土浇筑困难的情况。相交的梁纵筋处于同一标高,往往需要对梁纵筋进行弯折处理。这既给施工带来了不便,又使构件的受力性能受到影响。本文提出一种新型的钢筋混凝土梁柱节点构造方式,即钢套箍钢筋混凝土梁柱节点。按此节点构造方式制作了2个钢筋混凝土梁柱组合体试件,进行低周反复加载试验。分析了其节点区抗剪承载力、破坏特征、滞洄耗能等性能。并采用有限元软件ABAQUS进行了补充分析。结果表明建议的节点构造方式不仅能够极大地方便节点部位的混凝土施工,并且具有良好的承载能力和抗震性能。
[Abstract]:For the conventional reinforced concrete Liang Zhu joints, it is often found that the longitudinal beams are arranged closely in the joints and staggered from side to side, which leads to the difficulty of concrete pouring. At the same elevation, the longitudinal bars of the intersected beams often need bending treatment. This not only brings inconvenience to the construction, but also affects the mechanical performance of the members. In this paper, a new type of reinforced concrete Liang Zhu joint is proposed, that is steel collar reinforced concrete Liang Zhu joint. According to the joint structure, two reinforced concrete Liang Zhu composite specimens were made and subjected to low cycle repeated loading test. The properties of shear bearing capacity, failure characteristics and hysteresis energy dissipation in the joint area are analyzed. The finite element software ABAQUS is used to carry out supplementary analysis. The results show that the proposed joint construction method not only greatly facilitates the concrete construction at the joint site, but also has good bearing capacity and seismic performance.
【作者单位】：重庆大学土木工程学院;重庆大学山地城镇建设与新技术教育部重点实验室;
【分类号】：TU375

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