摘要
以某地铁站深基坑工程为背景,在前人的研究基础上,采用多层支撑轴力影响的简化计算方法,研究不同程度温度变化对深大基坑支撑轴力变化的影响,得出了该地铁车站钢支撑温度应力与温度变化的关系式。研究结果表明,温度引起的钢支撑温度应力变化同温升呈线性关系,钢支撑端部约束越强,温度变化对轴力的影响越大。本文的研究成果可为深基坑钢支撑设计与施工提供参考。
Based on the background of deep foundation pit of a subway station and the previous studies, by using the simplified calculation method of multi-layer axial support force impact, the impact of vaiying degrees of temperature change on multi-layer axial support force of a deep pit is studied, to obtain the relationship of the temperature change and the steel brace temperature stress. The results show that the change of the steel brace temperature stress is in a linear relationship with temperature rise, the stronger restraint of steel brace end results in the stronger impact of the temperature change on the axial support force. The result of this paper can provide a reference for the steel brace design and construction of deep foundation pit.
出处
《建筑科学》
北大核心
2012年第9期101-103,111,共4页
Building Science
关键词
地铁车站
深基坑
钢支撑
温度应力
subway station
deep foundation pit
steel brace
temperature stress
