全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2015 

基于等损伤的钢框架结构抗震性能优化

DOI: 10.6052/j.issn.1000-4750.2013.12.1181, PP. 76-83

Keywords: 等损伤,优化准则法,钢框架结构,抗震性能,人工地震动

Full-Text   Cite this paper   Add to My Lib

Abstract:

等损伤设计是指在地震作用下结构所有构件(楼层)发生同等程度的损伤而形成均匀的侧向变形,使所有结构构件的性能均能充分发挥。该文采用优化准则法发展了基于OpenSees平台的钢框架结构等损伤抗震设计方法。通过提取结构在强震下的构件损伤指数来获得损伤指数比列阵,进而定量地对损伤严重部位进行加强、对损伤较轻部位进行削弱;基于材料总造价恒定和体系约束条件,对所有构件进行重新调整。以一个8层钢框架结构作为原始结构,采用规范反应谱拟合的一条人工地震动作为输入,探讨了不同超松弛因子对优化结果的影响;通过大样本时程分析,对比了结构优化前后的层间位移角分布、整体损伤指标、楼层损伤分布和整体抗震能力,结果表明该文的优化方法能有效的提高结构的抗震能力。

References

[1]  JP Ou, H Li. The regional engineering damage and reconstruction strategy in Wenchuan earthquake of China [J]. Journal of Earthquake and Tsunami, 2011, 5(2): 189―216.
[2]  Bai Jiulin, Ou Jinping. Seismic failure mode improvement of RC frame structure based on multiple lateral load patterns of pushover analyses [J]. Science China Technological Sciences, 2011, 54(11): 2825―2833.
[3]  Iman Hajirasouliha, Hassan Moghaddam. New lateral force distribution for seismic design of structures [J]. Journal of Structural Engineering, 2009, 135(8): 906―915.
[4]  Chan C M, Zou X K. Elastic and inelastic drift performance optimization for reinforced concrete building under earthquake loads [J]. Earthquake Engineering and Structural Dynamics, 2004, 33: 929―950.
[5]  Zou X K, Chan C M, Li G, Wang Q. Multiobjective optimization for performance-based design of reinforced concrete frames [J]. Journal of Structural Engineering, 2007, 133(10): 1462―1474.
[6]  Hajirasouliha I, Asadi P, Pilakoutas K. An efficient performance-based seismic design method for reinforced concrete frames [J]. Earthquake Engineering and Structural Dynamics, 2012, 41: 633―679.
[7]  Liu M, Burns S A, Wen Y K. Multiobjective optimization for performance-based seismic design of steel moment frame structures [J]. Earthquake Engineering and Structural Dynamics, 2005, 34: 289―306.
[8]  白久林, 欧进萍. 基于IDA方法的钢筋混凝土结构失效模式优化[J]. 工程力学, 2011, 28(增刊2): 198―203. Bai Jiulin, Ou Jinping. Optimization of failure modes for reinforced concrete buildings based on IDA method [J]. Engineering Mechanics, 2011, 28(Suppl 2): 198―203. (in Chinese)
[9]  徐龙河, 单旭, 李忠献. 强震下钢框架结构易损性分析及优化设计[J]. 工程力学, 2013, 30(1): 175―179. Xu Longhe, Shan Xu, Li Zhongxian. Vulnerability analysis and optimization design for steel frame structure under strong earthquakes [J]. Engineering Mechanics, 2013, 30(1): 175―179. (in Chinese)
[10]  张炳华, 侯旭. 土建结构优化设计[M]. 上海: 同济大学出版社, 1998: 13. Zhang Binghua, Hou Xu. Optimization design for civil building structures [M]. Shanghai: Press of Tongji University, 1998: 13. (in Chinese)
[11]  杨乐. 钢框架结构地震失效模式与整体抗震能力分析[D]. 哈尔滨: 哈尔滨工业大学, 2013. Yang Le. Analysis of earthquake failure mode and global seismic capacity for steel moment frame structures [D]. Harbin: Harbin Institute of Technology, 2013. (in Chinese)
[12]  GB 50017-2003, 钢结构设计规范[S]. 北京: 中国计划出版社, 2003. GB 50017-2003 , Code for design of steel structures [S]. Beijing: China Planning Press, 2003. (in Chinese)
[13]  Arash Altoontash. Simulation and damage models for performance assessment of reinforced concrete beam-column joints [D]. California: Stanford University, 2004.
[14]  杜修力, 欧进萍. 建筑结构地震破坏评估模型[J]. 世界地震工程, 1991, 7(3): 52―58. Du Xiuli, Ou Jinping. Models for evaluating the earthquake-induced failure of building structures [J]. World Earthquake Engineering, 1991, 7(3): 52―58. (in Chinese)
[15]  OpenSees. Open system for earthquake engineering simulation, openSees framework Version 2.4.0 [CP]. Pacific Earthquake Engineering Research Center, University of California, Berkeley, http://opensees. berkeley.edu, 2012.
[16]  Vanmarke E H. SIMQKE: a program for artificial motion generation, user’s manual and documentation [R]. Cambridge: Massachusetts Institute of Technology, 1976.
[17]  FEMA P695, Quantification of building seismic performance factors [S]. Washington: Federal Emergency Management Agency, 2009.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133