摘要
建筑结构中球形支座与公路桥梁中的球形支座受力形态存在显著差异,往往需要承受很大的水平荷载。针对球形支座在水平力作用下转动灵活性减弱的缺点,对传统球形支座形式提出了改进方法;对各种复杂应力状态下的球形支座进行了设计验算,所采用的实用设计方法可供结构设计人员参考;在同济大学国家重点实验室对球形支座进行了试验。
Spherical bearings in the building structures and those in highway bridges significantly differ in forced pattern.Bearings in building structures often are required to withstand large horizontal loads.In this paper,considering that the rotation flexibility capacity of spherical bearings is weakened in horizontal loads,the form of traditional spherical bearings is improved.And key components on the spherical bearings in the complex stress state are checked.Besides,the practical design methods may be provided for structural designers as references.At last,spherical bearings are experimentally tested in the State Key Laboratory of Tongji University.
出处
《钢结构》
2011年第6期6-11,共6页
Steel Construction
基金
<钢结构设计规范>国家标准科研专项基金项目(GB500172010-13)
关键词
球形支座
设计
复杂应力状态
spherical bearings
design
complex stress state
