摘要
对于深基坑工程,地下连续墙安全性可从侧向位移和内力综合考虑。实际工程中,分别可通过测斜曲线和钢筋应力推算获得,但是钢筋应力计无法大量布置在墙体上。对此首先分析总结了通过地下连续墙测斜曲线反算变形曲率的几种方法,然后通过曲率与修正后的刚度求得内力,最后应用于实例,对比分析各方法的优劣并提出展望。
For deep foundation pit engineering,the safety of diaphragm wall can be considered from lateral displacement and internal force.In practical engineering,they can be obtained by inclination curve and stress calculation of steel bar respectively,but the steel bar stress gauge cannot be arranged in the wall of large quantities.Firstly,several methods for calculating the deformation curvature of diaphragm wall were analyzed and summarized.Then,the internal force was obtained by the wall curvature and modified stiffness.Finally,comparative analysis of the internal force estimation methods was conducted through a practical example.The advantages and drawbacks of the current methods were concluded and further research areas are proposed.
作者
周奎
吴宏伟
Zhou Kui;Wu Hongwei(College of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai,200093)
出处
《建设科技》
2020年第12期92-94,共3页
Construction Science and Technology
关键词
地下连续墙
测斜值
变形曲率
刚度修正
diaphragm wall
inclination
deformation curvature
stiffness modification
