【作者】 王军； 崔江余； 李迁； 陈泽龙； 杜涛； 张阔达；

【Author】 WANG Jun;CUI Jiangyu;LI Qian;CHEN Zelong;DU Tao;ZHANG Kuoda;School of Civil Engineering,Beijing Jiaotong University;PAN-CHINA Construction Group Co.,Ltd.;

【机构】 北京交通大学土木工程学院； 泛华建设集团有限公司；

【摘要】 使用MIDAS GEN对框剪结构沉降和顶升过程进行数值模拟,研究了不均匀沉降对框剪结构内力的影响,并结合框剪结构顶升纠倾工程实例,对现场监测资料和数值模拟结果进行对比分析,结果表明:数值模拟顶升过程中顶力和实际监测顶力接近;框架柱轴力在顶升过程中先增加后减小,顶升减小框架柱轴力分布不均;顶升过程零层板与框架柱相接处产生较大附加应力,顶升完成后零层板附加应力减小,施工中结构最不利阶段在顶升过程中。更多还原

【Abstract】 Using MIDAS GEN to numerically simulate the settlement and lifting process of the frame-shear structure,the influence of uneven settlement on the internal forces of the frame shear structure was studied,and combined with frame shear structure jack-up rectify leaning engineering example,the field monitoring data and numerical simulation results were carried out Comparative analysis.The results show that the jacking force in the numerical simulation jacking process is close to the actual monitored jacking force.The axial force of the frame column increases first and then decreases during the jacking process,and the lifting reduces the uneven distribution of the frame column axial force.During the jacking process,a large additional stress is generated at the connection between the zero-ply plate and the frame column,and the additional stress of the zero-ply plate decreases after the jacking is completed.In the construction,the most unfavorable stage of the structure is in the jacking process.更多还原