论文部分内容阅读
地铁的快速建设,使由于地铁施工引起沿线建筑物损坏的问题日益突出。先利用Peck经验公式得到地层沉降变化规律,然后结合实测数据得到特定工程地层的沉降曲线,在此基础上,以该沉降曲线作为输入荷载,基于Ansys软件分析平台,计算分析三层单跨和双跨钢筋混凝土框架结构的受力特点,并采用开裂弯矩作为评价指标,分析了结构在不均匀沉降下的安全性能。计算分析表明在该特定工况下结构是安全的。研究成果可为地铁沿线地表建筑物的保护提供指导。
The rapid construction of the subway has made the issue of damage to buildings along the railway line caused by subway construction increasingly prominent. Firstly, Peck’s empirical formula is used to get the law of formation subsidence, and then the settlement curve of a particular engineering formation is obtained by combining the measured data. Based on this settlement curve, the Ansys software analysis platform is used to calculate and analyze the three- Cross-reinforced concrete frame structure of the force characteristics, and the use of cracking moment as the evaluation index, the analysis of the structure in the uneven settlement of the safety performance. Computational analysis shows that the structure is safe under the specific conditions. The research results can provide guidance for the protection of surface buildings along the metro.