- 摘 要
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(西南交通大学土木工程学院,成都 610031)
[摘要]采用ANSYS软件,分析钢管混凝土柱-钢梁多向斜交节点中受拉加强环的应力、应变分布情况,并对主要影响因素进行分析。同时应用曲梁的有关理论,得出环板的应力分布规律。结果表明:与单向受拉和双向垂直正交节点的应力分布相比,梁-环结合转角处存在着应力集中现象,应力取决于斜交的角度,斜交角度越小,斜交区越易形成应力最大区。加强环板的厚度是影响加强环承载力的重要因素,分析结果可为加强环式节点的设计提供参考。
[关键词]组合结构;斜交节点;加强环;曲梁
Research on mechanical properties of the annular plane in concrete-filled steel tube column
with steel beam system with non-perpendicular elementsQi Xin, Meng Qingcheng, Zhao Shichun(College of Civil Engineering of Southwest Jiaotong University,Chengdu 610031,
China)
Abstract:Mechanical properties of concrete-filled steel tube column and steel beam joint with inner stiffening ring was analyzed by using FEA program ANSYS. Simultaneity, using correlative theory of circular beam, stress distributing rule of annular plane was induced. The multi-dimensions joint is different from the annular plane in bidirectional. Not only the turn of beam-ring stress concentration, but also lied on the oblique angle, smaller of the angle easier to form the biggest stress area. Thickness of annular plane can impact on load absorption of enforced plane. Results of FEA are valuable methods for design of annular plane.
Keywords:composite structure; non-perpendicular elements; stiffening ring; circular beam
作者简介:齐欣,博士研究生,讲师,Email:qixin_117@126.com。
参考文献
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