|本期目录/Table of Contents|

[1]郭彦林,郭宇飞,刘学武.大跨度钢结构屋盖落架分析方法[J].建筑科学与工程学报,2007,24(01):52-58.
　GUO Yan-lin,GUO Yu-fei,LIU Xue-wu.Analysis Methods of Removing Temporary Supports to Large-span Steel Structural Roof[J].Journal of Architecture and Civil Engineering,2007,24(01):52-58.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
24卷
期数:
2007年01期
页码:
52-58
栏目:
出版日期:
2007-03-20

文章信息/Info

Title:
Analysis Methods of Removing Temporary Supports to Large-span Steel Structural Roof
作者:
郭彦林，郭宇飞，刘学武
清华大学土木工程系,北京100084
Author(s):
GUO Yan-lin, GUO Yu-fei, LIU Xue-wu
Department of Civil Engineering, Tsinghua University, Beijing 100084, China
关键词:
钢结构屋盖;  落架;  支座位移法;  等效杆端位移法;  千斤顶单元法
Keywords:
steel structural roof;  removing temporary support;  support displacement method;  equivalent rod bottom-end displacement method;  jack element method
分类号:
TU393.3
DOI:
-
文献标志码:
A
摘要:
首先对大跨度钢结构屋盖的落架过程进行了简单分析,给出了落架应遵循的基本原则,并提出了“同步协调”和“分组分步”2种落架方式; 其次,介绍了落架过程数值模拟的3种计算方法:支座位移法、等效杆端位移法和千斤顶单元法,并详细论述了各自的计算原理及特点; 最后,基于ANSYS有限元软件,应用3种落架计算方法对3点支撑悬臂梁及国家体育场进行了落架过程模拟。结果表明,等效杆端位移法和千斤顶单元法是2种合理有效的方法,并可以方便地应用于工程实际中。
Abstract:
Firstly, some basic rules of removing temporary supports from steel structural roof were presented and two basic procedures of removing temporary supports, one is supports lowering simultaneously and the other is group by group and step by step, were also discussed in detail. Secondly, three calculation methods for numerical simulation analysis of removing temporary supports which are support displacement method, equivalent rod bottom-end displacement method and jack element method were introduced. Finally, the process of removing temporary supports was simulated by ANSYS finite element software package for two examples, namely three points support cantilever beam and national stadium. The comparisons of calculation results obtained by using three points support analysis methods mentioned above indicate that equivalent rod bottom-end displacement method and jack element method are rational and effective for an accurate simulation analysis of removing temporary supports to steel structural roof.

参考文献/References:

[1] 陈国栋,郭彦林,叶浩文,等.广州市新体育馆屋盖吊装及拆撑过程动态分析[J].建筑结构,2002,32(1):53-57. CHEN Guo-dong,GUO Yan-lin,YE Hao-wen,et al.Tracing Analysis of Truss Roof Structure for Guangzhou Gymnasium from Hoisting State into Designing State[J].Building Structure,2002,32(1):53-57.
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[10]范 重,刘先明,范学伟,等.国家体育场钢结构设计中的优化技术[J].建筑科学与工程学报,2006,23(2):20-29. FAN Zhong,LIU Xian-ming,FAN Xue-wei,et al.Optimization Techniques of Steel Structure Design for National Stadium[J].Journal of Architecture and Civil Engineering,2006,23(2):20-29.
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备注/Memo

备注/Memo:
收稿日期:2007-01-11
作者简介:郭彦林(1958-),男,陕西富平人,教授,博士生导师,工学博士,E-mail:gyl@tsinghua.edu.cn。
更新日期/Last Update: 2007-03-20