[1]罗永峰,毋凯冬,相阳.基于整体刚度折减系数的网壳结构抗震性能参数[J].东南大学学报(自然科学版),2017,47(3):539-544.[doi:10.3969/j.issn.1001-0505.2017.03.021]
 Luo Yongfeng,Wu Kaidong,Xiang Yang.Seismic performance parameter of latticed shell based on overall stiffness reduction factor[J].Journal of Southeast University (Natural Science Edition),2017,47(3):539-544.[doi:10.3969/j.issn.1001-0505.2017.03.021]
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基于整体刚度折减系数的网壳结构抗震性能参数()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
47
期数:
2017年第3期
页码:
539-544
栏目:
土木工程
出版日期:
2017-05-20

文章信息/Info

Title:
Seismic performance parameter of latticed shell based on overall stiffness reduction factor
作者:
罗永峰毋凯冬相阳
同济大学土木工程学院, 上海 200092
Author(s):
Luo Yongfeng Wu Kaidong Xiang Yang
College of Civil Engineering, Tongji University, Shanghai 200092, China
关键词:
网壳结构 整体刚度折减系数 抗震性能参数 设计优化
Keywords:
latticed shell overall stiffness reduction factor seismic performance parameter design and optimization
分类号:
TU973.31
DOI:
10.3969/j.issn.1001-0505.2017.03.021
摘要:
为研究针对网壳结构抗震性能的参数指标及设计限值,实现网壳结构抗震性能的快速评估与校核,采用基于结构整体刚度参数的模态推覆分析法,将网壳结构简化为相应的等效单自由度体系,分析网壳结构地震反应.基于此结构整体刚度参数及等效单自由度体系,提出新的抗震性能参数——整体刚度折减系数,并验证其准确性.将整体刚度折减系数值0.10,0.75和1.00作为矢跨比大于等于1/4的K6型网壳结构轻微破坏、中等破坏、严重破坏和倒塌的界限值,并将整体刚度折减系数值0.10和0.80分别作为结构线弹性、弹塑性变形验算的设计限值.数值算例分析结果表明,整体刚度折减系数具有较好的适用性,可用于网壳结构抗震性能的快速评估与校核以及结构设计优化.
Abstract:
To study the seismic performance parameters, index and limit values for the latticed shells to realize fast evaluation and check of the seismic performance, the latticed shell is simplified to the equivalent single degree of freedom(ESDOF)system by using the modal pushover analysis method based on the overall structural stiffness parameters, and the seismic responses of this structure is also analyzed. Based on the overall structural stiffness parameters and the ESDOF system, a new seismic performance parameter, overall stiffness reduction factor(OSRF), is introduced, and its accuracy is proved. The OSRFs of 0.10, 0.75,1.00 are set as the boundary values for slight damage, moderate damage, severe damage and collapse of K6 lattice shells with the ratio of rise to span of 1/4 or greater, respectively. The OSRFs of 0.10 and 0.80 are set as the design limit values at the linear-elastic and elastic-plastic stages, respectively. The analysis results of the numerical examples show that the ORSF has good applicability and can be used for fast evaluation and check for the seismic performance of latticed shells as well as structural design and optimization

参考文献/References:

[1] Chandler A M, Lam N T K. Performance-based design in earthquake engineering:A multi-disciplinary review[J]. Engineering Structures, 2001, 23(12): 1525-1543. DOI:10.1016/s0141-0296(01)00070-0.
[2] Ganzerli S, Pantelides C P, Reaveley L D. Performance-based design using structural optimization[J]. Earthquake Engineering & Structural Dynamics, 2000, 29(11): 1677-1690. DOI:10.1002/1096-9845(200011)29:11<1677::AID-EQE986>3.0.CO;2-N.
[3] 张毅刚, 杨大彬, 吴金志. 基于性能的空间结构抗震设计研究现状与关键问题[J]. 建筑结构学报,2010,31(6): 145-152.
  Zhang Yigang, Yang Dabin, Wu Jinzhi. Research status and key issue of performance-based seismic design of spatial structures[J].Journal of Building Structures, 2010, 31(6): 145-152.(in Chinese)
[4] 罗永峰,相阳,沈祖炎. 大跨空间结构地震反应分析方法研究应用现状[J]. 力学季刊,2015, 36(1): 1-10.
  Luo Yongfeng, Xiang Yang, Shen Zuyan. Research and application status of seismic analysis techniques for large-span spatial structures[J]. Chinese Quarterly of Mechanics, 2015, 36(1): 1-10.(in Chinese)
[5] 沈世钊, 支旭东. 球面网壳结构在强震下的失效机理[J]. 土木工程学报, 2005, 38(1): 11-20. DOI:10.3321/j.issn:1000-131X.2005.01.002.
Shen Shizhao, Zhi Xudong. Failure mechanism of reticular shells subjected to dynamic actions[J]. China Civil Engineering Journal, 2005, 38(1): 11-20. DOI:10.3321/j.issn:1000-131X.2005.01.002. (in Chinese)
[6] 支旭东,聂桂波,范峰,等. 大跨度单层球面网壳的损伤模型及强震失效[J]. 哈尔滨工业大学学报, 2009, 41(8): 6-11.
  Zhi Xudong, Nie Guibo, Fan Feng, et al. Damage model and failure mechanism of long-span single-layer reticulated domes under earthquake[J]. Journal of Harbin Institute of Technology, 2009, 41(8): 6-11.(in Chinese)
[7] 聂桂波,范峰,支旭东. 大跨空间结构性能水准划分及其易损性分析[J]. 哈尔滨工业大学学报, 2012, 44(4): 1-6.
  Nie Guibo, Fan Feng, Zhi Xudong. Division of seismic performance level and its vulnerability analysis in large span space structure[J]. Journal of Harbin Institute of Technology, 2012, 44(4): 1-6.(in Chinese)
[8] 杨木旺. 大跨度刚性空间结构竖向地震的静力弹塑性分析[D].上海:同济大学土木工程学院,2007.
[9] Ohsaki M, Zhang J Y. Prediction of inelastic seismic responses of arch-type long-span structures using a series of multimodal pushover analyses[J]. Journal of the International Association for Shell & Spatial Structures, 2013, 54(175):27-37.
[10] 相阳, 罗永峰, 郭小农, 等. 基于整体刚度参数的空间结构模态推覆分析[J]. 同济大学学报(自然科学版), 2015, 43(12): 1771-1776. DOI:10.11908/j.issn.0253-374x.2015.12.001.
Xiang Yang, Luo Yongfeng, Guo Xiaonong, et al. Modal pushover analysis of spatial structures based on the overall structural stiffness parameter[J]. Journal of Tongji University(Natural Science), 2015, 43(12): 1771-1776. DOI:10.11908/j.issn.0253-374x.2015.12.001. (in Chinese)
[11] 相阳, 罗永峰, 郭小农, 等. 空间结构弹塑性地震反应分析的简化模型与方法[J]. 东南大学学报(自然科学版), 2015, 45(4): 750-755. DOI:10.3969/j.issn.1001-0505.2015.04.024.
Xiang Yang, Luo Yongfeng, Guo Xiaonong, et al. Simplified model and procedure for elasto-plastic seismic response analysis of spatial structure[J]. Journal of Southeast University(Natural Science Edition), 2015, 45(4): 750-755. DOI:10.3969/j.issn.1001-0505.2015.04.024. (in Chinese)

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备注/Memo

备注/Memo:
收稿日期: 2016-09-06.
作者简介: 罗永峰(1957—),男,博士,教授,博士生导师,yfluo93@tongji.edu.cn.
基金项目: 国家自然科学基金资助项目(51378379).
引用本文: 罗永峰,毋凯冬,相阳.基于整体刚度折减系数的网壳结构抗震性能参数[J].东南大学学报(自然科学版),2017,47(3):539-544. DOI:10.3969/j.issn.1001-0505.2017.03.021.
更新日期/Last Update: 2017-05-20