| Ultimate Bearing Capacity of Hollow Spherical Joints Welded with Circular Pipes under Eccentric Loads |
| |
| 作者姓名： | 韩庆华 周全智 陈越 于宝林 |
| |
| 作者单位： | School of Civil Engineering Tianjin University，School of Civil Engineering Tianjin University，School of Civil Engineering Tianjin University，School of Civil Engineering Tianjin University，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China，Tianjin 300072 China |
| |
| 摘 要： | The National Swimming Center built for the 2008Beijing Olympic Games applies the polyhedron spatialframe structure, which is based on the foam physicstheory1]. Its simple geometry is a square box of 170m×170 m×29 m. It can hold 17 000 people, theroof o…
|
| 关 键 词： | 空心球接头 圆管 焊接 偏心荷载 极限承载能力 |
| 收稿时间： | 2006-09-04 |
Ultimate Bearing Capacity of Hollow Spherical Joints Welded with Circular Pipes under Eccentric Loads |
| |
| HAN Qinghua,ZHOU Quanzhi,CHEN Yue,YU Baolin.Ultimate Bearing Capacity of Hollow Spherical Joints Welded with Circular Pipes under Eccentric Loads[J].Transactions of Tianjin University,2007,13(1):28-34. |
| |
| Authors: | HAN Qinghua ZHOU Quanzhi CHEN Yue YU Baolin |
| |
| Abstract: | The hollow spherical joints welded with circular pipes applied to the National Swimming Center of China are subjected to large bending moments, but the influence of bending moments is not considered in the design equations in Technical Specification for Latticed Shells. Based on the von Mises yield criterion, multilinear isotropic hardening rule and associated flow rule, the elasto-plastic finite element model is put forward to analyze the behavior of the joints, and a calculation method for the joints under bending moments or eccentric loads is proposed. It is shown by the analytical results of joint that the stiffening rib can improve the ultimate bearing capacity by 10% for joints under axial tensile load, by 40% for joints under axial compressive load, and by 50% for joints under bending moment. The unified calculation equations for joints with or without stiffening rib are put forward, which can be applied to calculating the ultimate bearing capacity of the hollow spherical joints with circular pipes under eccentric loads. |
| |
| Keywords: | hollow spherical joints welded with circular pipes bearing capacity finite element method elastoplasticity eccentric load influence of stiffening rib |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
