钢桁架结构杆件的昼夜温差应力变化测试  

The Measurement of Temperature Stress Caused by Sunshine Action of Steel Truss

作　　者：刘炜[1] 

机构地区：[1]太原理工大学,030024

出　　处：《特种结构》2013年第5期16-18,共3页Special Structures

摘　　要：目前鉴于温度荷载作用下钢结构应力变化的研究较少,本文以某工厂原料输送管道支撑钢桁架为例,进行了昼夜温度作用下钢桁架34h现场应变连续测试试验。试验结果可知,温度应力对钢桁架内力有较大影响。研究结果可为类似工程设计提供依据。According to the fact that the research about temperature stress of steel structure is few nowaday, in this paper, taking a factory steel truss which support raw material pipeline as an example, the 34-hour on- site continuous strain test on the steel truss caused by sunshine temperature was conducted. The experimental results show that the temperature stress has a great influence on the internal force of steel truss. The results might provide a basis for similar engineering design.

关 键 词：温度应力 应变 钢桁架 

分 类 号：TU391[建筑科学—结构工程]