摘要
大跨度、长悬臂空间结构多采用钢桁架受力体系,此类结构抗连续倒塌研究多集中于判断关键杆件及杆件或体系优化,而实际工程中结构支座的抗连续倒塌问题不容忽视。为实际项目应用提供参考,采用3个工程实例进行论述分析,从体系受力、支座节点设计方面探讨桁架结构支座抗连续倒塌设计,以支座构造优化大幅提高结构安全度。
Steel truss system is widely used in long-span and long-cantilever space structures.The research on progressive collapse resistance of steel truss system mostly focuses on the judgment of the critical members and the optimization of the members or the system.However,the problem of progressive collapse resistance of structural supports in practical engineering can not be ignored.In this paper,the design of truss structure support to resist progressive collapse is discussed from the aspects of system stress and joint design by three engineering examples,and the structural safety is greatly improved by optimization of the support structure.The purpose of this paper is to provide reference for practical project application.
作者
陈德平
CHEN Deping(Xiamen Hordor Architecture&Engineering Design Group Co.,Ltd.,Xiamen 361004)
出处
《福建建筑》
2019年第11期52-56,共5页
Fujian Architecture & Construction
关键词
钢桁架
大跨度
抗连续倒塌
支座
Steel truss
Long-span
Progressive collapse resistance
Support
