[1]夏风敏,田忠诚,范夕森,等.楼层平移前梁柱静态分析——以莱芜高新区管委会综合楼为例[J].山东建筑大学学报,2017,(03):284-289.[doi:10.12077/sdjz.2017.03.013]
 Xia Fengmin,Tian Zhongcheng,Fan Xisen,et al.Static analysis of beams and columns of complex building before translation:A case study of hightech zone of Laiwu[J].Journal of Shandong jianzhu university,2017,(03):284-289.[doi:10.12077/sdjz.2017.03.013]
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楼层平移前梁柱静态分析——以莱芜高新区管委会综合楼为例()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2017年03期
页码:
284-289
栏目:
工程实践
出版日期:
2017-06-15

文章信息/Info

Title:
Static analysis of beams and columns of complex building before translation:A case study of hightech zone of Laiwu
文章编号:
1673-7644(2017)03-0284-06
作者:
夏风敏田忠诚范夕森贾留东
(山东建筑大学 土木工程学院,山东 济南 250101)
Author(s):
Xia FengminTian ZhongchengFan Xisenet al.
(School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China)
关键词:
平移静态分析应力托换桁架
Keywords:
translation static analysis stress underpinning truss
分类号:
TU746.4
DOI:
10.12077/sdjz.2017.03.013
文献标志码:
A
摘要:
支座形式的改变对结构内力及变形产生影响,决定楼层平移能否顺利进行,对结构的内力和节点位移变化进行研究可为确定平移对结构的影响提供理论依据。文章以莱芜市高新区管委会综合楼平移工程为背景,基于平移所需要的实际情况,应用有限元软件ETABS建立了原模型、局部托换模型、施工完托换桁架模型等3种模型;对比分析了3种模型的梁端和柱端内力值,研究其梁柱节点位移,探索局部托换模型以及施工完托换桁架模型相对于原模型的端部内力和节点位移变化幅度。结果表明:支座形式的改变对结构的影响程度随层数增加而减小;梁在竖向及水平荷载作用下内力变化幅度分别为-13.34%~2.6%与-8.12%~15.57%,柱因支座形式及端部位置不同而差别较大;托换桁架对降低柱下端内力变化幅度作用明显,水平荷载下可降低90%;节点水平位移变化幅度大于竖向位移变化幅度,主楼节点竖向位移大于裙楼。
Abstract:
The change of support form has influence on structural internal force and formation, and decides whether the floor moving can run smoothly or not, and the analysis of the internal force and joint displacement change of the structure is necessary. Based on the translation of complex building in highteach zone of Laiwu, with the finite element software ETABS program, the paper builds three models of original model, local underpinning model that cuts column off foundation and the model that install underpinning structure according to the actual situation of the translation, analyzes the three models force values of beams end and columns end under the three kinds of condition and consider three models beamcolumn node displacement, explores the change range about the model that cut column off foundation and local underpinning and the model that install underpinning structure relative to the original model. The results show that the effects of the change of support on structural internal force decreases with the increase of thee layer number. The internal force variation of beam is -13.34%~2.6% and -8.12%~15.57% under vertical and horizontal load, and the column with different support forms and end position has a bigger difference. Underpinning the truss has an obvious effect on reducing the column bottom internal force variation, and it can be reduced by 90% under the horizontal load. Nodes in the horizontal displacement amplitude is greater than that in vertical displacement, and vertical node displacement of the main building is greater than that of skirt building.

参考文献/References:

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备注/Memo

备注/Memo:
2017-05-12 基金项目:山东省教育厅科技项目(J10LE06)作者简介:夏风敏(1974-),女,副教授,硕士,主要从事建筑物加固改造等方面的研究.Email:XFM@sdjzu.edu.cn
更新日期/Last Update: 2017-06-28