[1]范夕森1,田廷磊2.单跨框架结构的减震加固技术研究[J].山东建筑大学学报,2015,(2):116-122.
 Fan Xisen,Tian Tinglei.Research on energy dissipation technology in seismic strengthening of singlespan frame structures[J].Journal of Shandong jianzhu university,2015,(2):116-122.
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单跨框架结构的减震加固技术研究()
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《山东建筑大学学报》[ISSN:1673-7644/CN:37-1449/TU]

卷:
期数:
2015年2期
页码:
116-122
栏目:
研究论文
出版日期:
2015-04-15

文章信息/Info

Title:
Research on energy dissipation technology in seismic strengthening of singlespan frame structures
作者:
范夕森田廷磊
1.山东建筑大学土木工程学院,山东济南250101;2.山东铭远工程设计咨询有限公司,山东济南250022
Author(s):
Fan Xisen 1 Tian Tinglei 2
1. School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2. Shandong Mingyuan Engineering Design Inquire Co. , Ltd. , Jinan 250022, China
关键词:
结构抗震加固减震技术单跨框架结构防屈曲支撑加固效果
Keywords:
Buckling Restrained Brace strengthening effect
分类号:
TU375.
文献标志码:
A
摘要:
单跨框架结构的减震加固技术对于提高原框架结构的抗震性能、减小加固工程量和降低施工复杂性具有重要意义。文章通过设置防屈曲支撑(BRB)使单跨结构改变为框架—耗能支撑减震结构,从而减小原框架承担的地震效应的研究,阐明了单跨框架结构减震加固的基本原理,提出了耗能减震加固设计的准则,并对减震加固的工程实例进行了分析。结果表明:减震加固后,小震作用下的层间位移和由框架柱承担的地震剪力为加固前的30% ~40%,罕遇地震作用下为25% ~45%;BRB率先进入塑性变形,是整个结构的第一道地震防线;单跨框架结构采用BRB做减震加固,可有效提高结构的抗震性能。
Abstract:
Energy dissipation technology in seismic strengthening of singlespan frame structures has important implications for improving their seismic performance and reducing the quantities and the complexity of construction. Being installed some Buckling Restrained Braces ( BRB) , a singlespan  frame structure could be changed to a frameenergy dissipation brace structure, and the seismic effects carried by frame were reduced obviously. Based on such a research, this paper presented the basic principle and design guidelines for energy dissipation strengthening, and analyzed an example. The results show that, after strengthening, the interstory shear forces carried by columns and the inter story drifts under frequent earthquakes are reduced to less than 40%, whereas those under severe earthquakes are reduced to less than 45%; BRB takes a lead in entering the plastic deformation and plays a roll of the first seismic line; Strengthened with BRB, the seismic performance of the single span frame structure is effectively improved.Key words: structural seismic strengthening; energy dissipation technology; singlespan frame
更新日期/Last Update: 2015-05-01