| X形圆钢管相贯节点平面外受弯滞回模型研究 |
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| 引用本文： | 孟宪德,陈以一,王伟.X形圆钢管相贯节点平面外受弯滞回模型研究[J].土木工程学报,2012(8):8-14. |
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| 作者姓名： | 孟宪德 陈以一 王伟 |
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| 作者单位： | 同济大学;中建国际设计顾问有限公司;同济大学土木工程防灾国家重点实验室 |
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| 基金项目： | 科技部国家重点实验室基金(SLDRCE08-A-04);国家自然科学基金(51038008) |
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| 摘 要： | 采用数值分析方法对X形圆钢管相贯节点的平面外受弯滞回模型进行研究。针对影响节点性能的主要几何参数,建立206个已校验的有限元模型进行参数分析,通过多元回归技术得出基于Menegotto-Pinto方程的节点平面外弯矩-转角曲线方程,以及平面外受弯滞回模型,经比较,与数值分析结果吻合较好。通过一个单层网格结构算例,验证了滞回模型的准确性和有效性。
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| 关 键 词： | 圆钢管相贯节点 滞回模型 平面外受弯 数值分析 |
A hysteretic model of unstiffened CHS X-joints under out-of-plane bending |
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| Meng Xiande,Chen Yiyi,Wang Wei.A hysteretic model of unstiffened CHS X-joints under out-of-plane bending[J].China Civil Engineering Journal,2012(8):8-14. |
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| Authors: | Meng Xiande Chen Yiyi Wang Wei |
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| Affiliation: | 1,2 (1.Tongji University,Shanghai 200092,China;2.The State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University,Shanghai 200092,China;3.China Construction Design International,Shanghai 200233,China) |
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| Abstract: | Hysteretic model of unstiffened tubular X-joints under out-of-plane bending is studied by numerical analysis.Finite element analyses are conducted for 206 X-joints of various parameters influencing the non-rigid behavior of tubular joints.Based on the parametric study,the M- relationship of tubular X-joints is established for predicting nonlinear behavior of connections in the global analysis of tubular lattice grid.Based on the M- relationship and the finite element analysis result,the hysteretic relationship is established.Finally a numerical example for a reticulated shell verifies the proposed hysteretic model. |
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| Keywords: | unstiffened CHS joint hysteretic model out-of-plane bending numerical analysis |
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