建筑物带基础整体移位模拟及结构受力状态监测参数  

Simulation of unitary shifting of buildings with foundation and parameters of loading condition monitoring

作　　者：杜永峰[1,2] 杨巧红[1] 张太亮 

机构地区：[1]兰州理工大学防震减灾研究所,甘肃兰州730050 [2]兰州理工大学西部土木工程防灾减灾教育部工程研究中心,甘肃兰州730050 [3]甘肃省土木工程科学研究院,甘肃兰州730050

出　　处：《兰州理工大学学报》2012年第6期112-117,共6页Journal of Lanzhou University of Technology

基　　金：国家自然科学基金(51178211);甘肃省科技支撑计划(090-GKCA040)

摘　　要：以实际工程为例,结合在建建筑物带基础整体移位的工程特点,应用ANSYS workbench建立有限元模型,使用静力分析的方法模拟分析整个结构在顶升移位和平移移位过程中的受力状态.通过分析其变形和应力,发现采用液压悬浮滑移系统可解决该建筑物左右单元质量分布不对称对移位安全影响的问题.分析结果显示,该移位建筑物较大的变形和较大应力发生于筏板基础.通过模拟对比分析,结合工程自身特点,将筏板基础在移位过程中出现较大响应部位的变形、应力和应变作为该结构受力状态监测的参数,这些监测参数可为建筑物移位工程中和就位后安全状态的监测提供参考.Taking an actual engineering as example and considering the engineering peculiarity of unitary shifting of building with its foundation under construction, its finite element model was set up with AN- SYS workbench and the condition of force action on its entire structure in course of vertical and horizontal shifting was simulated and analyzed by using static analysis method. It was found by analyzing the deform- ation and stress of the structure that the hydraulic suspension-slip system could be used to solve the prob- lem of influence of mass asymmetry of left and right parts of the structure on the shifting security. It was also shown by the analysis that a greater deformation of and stress in the shifted building would take place in the raft foundation. By means of simulative comparison and analysis, the deformation, stress and strain of the raft foundation at the location with greater response in course of shifting should be taken as the pa- rameters of loading condition monitoring. These parameters would be used as a reference for monitoring the security condition of building shifting in progress as well as after its settling down.

关 键 词：房屋整体移位 受力状态监测 平移顶升 筏板基础 

分 类 号：TU311.2[建筑科学—结构工程] TU375