砌体房屋平移中不利工况下的上轨道设计分析

Analysis for upper track design of underpinning system under unfavorable condition in the movement of masonry building

为了研究现有建筑物平移中上轨道设计方法在砌体结构中的适用性,以某平移工程为研究对象,分析施工过程中结构的受力状态及监测数据,选取典型工况进行有限元分析。在有限元分析的基础上,对上轨道各构件进行参数分析,分别研究各构件对结构整体受力的影响。分析结果表明:上轨道各构件在不同工况下的传力比不同,且不同工况下的主要受力构件也不同;连梁刚度的提高可以有效改善建筑外墙的受力。同时给出了一种合理的斜撑布置方式,供其他工程参考。

To study the applicability of the existing design method for underpinning structure of masonry building in monolithic movement,a monolithic movement project was taken as the research object.By analyzing the stress state and monitoring data of the structure during construction analysis,the typical conditions were selected for finite element analysis.On this basis,the parameters of each component of the upper track were analyzed,and the effects of each component on the overall stress of the structure were studied separately.The analysis results show that the components of the upper track have different force-delivering ratios under different conditions,and the main force-bearing components under different working conditions are also different.The increase of the stiffness of the coupling beam can effectively rationalize the force of external walls.Moreover,a reasonable arrangement of brace is provided for reference by other projects in this paper.