高强螺栓承载力折减系数在钢网架结构中应用的探讨  

Bearing capacity reduction factor of high strength bolts in the application of steel grid structures

作　　者：王永 宋岩[2] 张树勋 

机构地区：[1]国家网架及钢结构产品质量监督检验中心,江苏徐州221006 [2]徐州工程学院,江苏徐州221008

出　　处：《四川建筑科学研究》2013年第1期18-19,162,共3页Sichuan Building Science

基　　金：2009国家质检总局科技计划项目(2009QK163);2007江苏省高校自然科学基金项目(07KJ560204)

摘　　要：高强螺栓作为螺栓球节点网架中重要的受拉构件,对网架结构的承载能力有着至关重要的影响。尤其是对于在役工程,当高强螺栓拉力载荷不符合标准要求时,如何确定其对结构承载能力的影响就显得尤为重要。针对该种情况进行了设计复核和分析,通过承载力折减,降低高强螺栓的承载力,并将其折减后承载力与其实际受力进行比较,以确定结构是否安全。通过该问题的处理,为类似问题的解决提供一种探讨的思路。High strength bolts as the important tension member, having crucial effect for beating capacity of grid structure. Especially for in-service engineering,when high strength bolt tensile load doesn＇t meet the standard requirements, how to determine the structure bearing capacity influence is particularly important. The article is aimed at the situation of the design review and analysis, through the bearing capacity reduction,reducing the high strength bolt bearing capacity, and the reduction of bearing capacity and the actual force are compared,to determine the safety of the structure. Through the question processing, provides a discussion for solving the similar problems.

关 键 词：高强螺栓 折减系数 网架结构 承载能力 

分 类 号：TU391[建筑科学—结构工程]