基于MIDAS/GEN软件数值模拟分析施工安全——以某大厦裙楼结构局部改造施工工程为例  

Numerical Simulation Analysis of Construction Safety Based on MIDAS/Gen—— A Case Study of Construction Process of Local Reformation of a Podium Building Structure

作　　者：张伟[1,2] 杨伟 吴其祥[1,2] 

机构地区：[1]福建省建筑科学研究院,福建福州350025 [2]福建省绿色建筑技术重点实验室,福建福州350025

出　　处：《福建建筑》2018年第1期41-45,共5页Fujian Architecture & Construction

摘　　要：为某大厦裙楼结构局部改造制定的切割加固施工方案提供依据,采用MIDAS/GEN软件进行施工过程数值仿真分析。分析结果表明:在整个施工过程中结构悬挑梁端竖向变形最大,总体上变形呈缓慢增大趋势;在影厅楼板敲除、次梁切除和脚手架卸载3个施工阶段观测点的内力及变形变化量较大,施工过程应引起重视。建议:施工过程应进行必要的变形和应力监测,以确保整个施工过程的安全。In order to provide the basis of the cutting and strengthening reconstruction scheme, the numerical simulation analysis of construction process is carried out by using MIDAS/GEN software for a podium building structure.The analysis results show that vertical deformation of cantilever beams was maximum in the whole construction process, and the deformation has a slowly increasing trend on the whole construction process. Variation of internal force and deformation are larger under the 3 stages, i.e. the hall floor knocking out, secondary beam removal and unloading of the scaffold, which should be paid more attention to. Deformation and stress monitoring shall be carried out during construction to ensure the safety of the whole construction process in the end.

关 键 词：数值模拟 施工过程 切割 加固 

分 类 号：TU393.3[建筑科学—结构工程]