考虑初弯曲的半刚接钢框架稳定承载力分析

(1. 河海大学土木工程学院，江苏，南京 210098；2. 宁波大学建筑工程与环境学院；浙江，宁波 315211； 3. 苏州科技学院土木工程系，江苏，苏州 215011；4. 广西大学土木建筑工程学院，广西，南宁 530004)

详细信息

RANALYSIS OF STABLE BEARING CAPACITY OF STEEL FRAMES WITH SEMI-RIGID CONNECTION AND ORIGINAL CURVATURE

(1. Department of Civil Engineering, Hohai University, Nanjing, Jiangsu 210098, China; 2. Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo, Zhejiang 315211, China; 3. Department of Civil Engineering, College of Science and Technology of Suzhou, Suzhou, Jiangsu 215011, China; 4. College of Civil Engineering & Architecture, Nanning, Guangxi 530004, China)

摘要: 该文对半刚性连接平面钢框架稳定承载力进行了有限元分析，在单元刚度矩阵中考虑了节点半刚性连接、杆件初弯曲和二阶效应的影响。采用修正的Newton-Raphson增量迭代法编制了计算程序。分析结果表明：初弯曲和半刚性连接对钢框架稳定承载力的影响是不容忽视的。
- 半刚接钢框架 /
- 初弯曲 /
- 二阶效应 /
- 整体稳定分析 /
- 非线性
Abstract: This paper presents a finite element method for calculating semi-rigid steel frames. The effects of connection flexibilities, original curve factors and the second order effect have been considered in the element stiffness matrixes. A program for analyzing the global stability of semi-rigid steel frames with revised Newton-Raphson process has compiled. In conclusion, the effect of original curvatures and semi-rigid connections on the global stability of steel frameworks should be taken into consideration.
- semi-rigid steel frame /
- original curve /
- second order effect /
- global stability analysis /
- non-linearity