钢支撑季节温度应力影响安全性研究现状分析

Analysis on the Current Conditions of the Research on the Safety of Seasonal Temperature Stress of Steel Support

钢支撑广泛运用于城市建设中,作为金属建筑构件,钢支撑会随温度改变产生温度应力,从而对建筑基坑的稳定性产生影响。文章对国内外关于基坑支护系统温度效应的影响研究进行了较系统的梳理和归纳,对城市建筑基坑钢支撑的温度应力影响因素进行了总结,对降温工况及升温工况下的钢支撑危险性进行了分析,以期为现代城市基坑钢支撑的使用提供借鉴。

Steel bracing is widely used in urban construction.As a metal building component,steel bracing will generate thermal stress with the change of temperature,thus affecting the stability of building foundation pit.This paper systematically analyzes and concludes the research on the temperature effect of foundation pit supporting system at home and abroad,and summarizes the influential factors of temperature stress of the steel support of building foundation pit.Then the dangers of steel supports under cooling conditions and heating conditions are analyzed in order to provide a reference for the use of steel supports for modern urban foundation pits.