(1 同济大学，上海 200092； 2 上海现代建筑设计集团，上海 200041；3 奥雅纳工程咨询(上海)有限公司，上海 200031)
［摘要］实际工程中遇到需要考虑X型圆钢管相贯节点平面外抗弯刚度的情况，而目前这方面的研究较少。通过试验结果与有限元分析结果的对比论证了有限元分析的可行性，在此基础上通过单参数分析明晰了影响节点平面外抗弯刚度的主要因素，然后通过正交模型设计与分析得到了X型圆钢管相贯节点平面外抗弯刚度参数计算公式，最后检验了公式的适用性。
［关键词］钢管节点；抗弯刚度；参数分析；计算公式
Parametrical analysis and design formulas for out-of-plane bending rigidity of CHS X-joints
Du Chunling1, 3, Wang Wei1, Chen Yiyi1, Yang Lianping2, Qu Hong2(1 Tongji University, Shanghai 200092, China; 2 Shanghai Xian Dai Architectural Design Group Co., Ltd., Shanghai 200041, China; 3 Arup International Consultants (Shanghai) Co., Ltd, Shanghai 200031, China)
Abstract:The out-of-plane bending rigidity of X-type CHS joint need to be considered in some projects, however researches in this field are quite few. By the comparison of experiment results and FEM results, the feasibility of FEM is studied, then the main facts influencing the out-of-plane rigidity of joint is made clear. The parametric formula of out-of-plane bending rigidity of X-type CHS joint is identified by orthogonal analysis. Finally, the applicability of the parametric formula is verified.
Keywords:tubular joint; bending rigidity; parametrical analysis; design formula
基金项目：国家自然科学基金(50578117)。
作者简介：杜纯领(1983-)，男，硕士，从事建筑结构设计工作，Email:chunlingdu2000@yahoo.com.cn。
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