[1]李正农,郭昌根,尚扬,等.基于实测加速度的高层建筑风荷载反演[J].自然灾害学报,2017,(03):113-123.[doi:10.13577/j.jnd.2017.0314]
 LI Zhengnong,GUO Changgen,SHANG Yang,et al.Wind load inversion of highrise building based on measured acceleration[J].,2017,(03):113-123.[doi:10.13577/j.jnd.2017.0314]
点击复制

基于实测加速度的高层建筑风荷载反演
分享到:

《自然灾害学报》[ISSN:/CN:23-1324/X]

卷:
期数:
2017年03期
页码:
113-123
栏目:
出版日期:
2017-06-28

文章信息/Info

Title:
Wind load inversion of highrise building based on measured acceleration
作者:
李正农1 郭昌根1 尚扬1 张传雄12
1. 湖南大学 建筑安全与节能教育部重点实验室, 湖南 长沙 410082;
2. 温州大学瓯江学院, 浙江 温州, 325035
Author(s):
LI Zhengnong1 GUO Changgen1 SHANG Yang1 ZHANG Chuanxiong12
1. Key Laboratory of Building Safety and Energy Efficiency of Ministry of Education, Hunan University, Changsha 410082, China;
2. Qujiang College, Wenzhou University, Wenzhou 325035, China
关键词:
高层建筑简化模型风致响应模态识别荷载反演
Keywords:
highrise buildingsimplified modelwind-induced responsemodal identificationload inversion
分类号:
TU312+.1;P315.92;X43
DOI:
10.13577/j.jnd.2017.0314
摘要:
在台风"杜鹃"登陆期间,对温州市某高层建筑进行了现场实测,得到了建筑物的风场和加速度响应等数据。进而对实测结构进行了模态参数识别,得到了其固有频率、振型和阻尼比。对结构加速度响应信号进行了去噪处理,经过信号处理后的响应数据满足高斯分布,进而通过积分得到高层建筑的速度和位移响应。同时,运用等效原理建立了该高层建筑结构的5质点简化弯剪模型,使简化结构的动力特性和原结构相似。再应用简化模型反演出结构受到的脉动风荷载时程。将反演得到的脉动风荷载时程叠加上平均风荷载得到各测点风荷载时程,再作用到简化模型上运用Newmark-β法进行风致响应分析,计算得到的加速度响应与实测加速度响应较为吻合。
Abstract:
During the period in which Typhoon Dujuan landed, a high-rise building in Wenzhou City was employed to undergo field measurement. And the data on wind field and the acceleration response of structure were obtained. Then the modal parameters of the structure were identified to obtain the natural frequency, mode shape and damping ratio. The acceleration responses obey Gaussian distribution after their signals were denoised, and the velocity and displacement responses were acquired by integrating the acceleration response. Meanwhile, the equivalence principle, utilized in establishing the simplified five-mass point bending-shear model of the high-rise building, was engaged to demonstrate that its dynamic characteristics were similar to the original structure. The simplified model was applied again to inverse fluctuating wind load. Then, the fluctuating wind load was superimposed to the average wind load to obtain the total wind load which was loaded on the simplified model. And after analyzing the wind-induced response with Newmark-β method, the research shows that the calculated and measured acceleration responses match well.

参考文献/References:

[1] 郑庆阳, 傅继阳, 吴玖荣. 多点风激励下高层建筑响应分析方法[J]. 自然灾害学报, 2014(3):66-75. ZHENG Qingyang, FU Jiyang, WU Jiurong. Response analysis methods of highrise buildings under multipoint wind excitation, 2014(3):66-75. (in Chinese)
[2] 陈隽, 李杰. 高层建筑风荷载反演研究[J]. 力学季刊, 2001, 22(1):72-77. CHEN Jun, LI Jie. Study on wind load invesre of tall building[J]. Chinese Quarterly of Mechanics, 2001, 22(1):72-77. (in Chinese)
[3] 何涛, 敖翔, 谢强, 等. 输电塔风荷载反演实例研究[J]. 福州大学学报(自然科学版), 2005, S1:293-296. HE Tao, AO Xiang, XIE Qiang, et al. The research of the wind load identification of transmitting electricity tower case study[J]. Journal of Fuzhou University(Natural Science), 2005, S1:293-296. (in Chinese)
[4] 杨旺华, 李秋胜, 王启文, 等. 高层结构风荷载的反演分析[J]. 建筑结构, 2013, S1:954-959. YANG Wanghua, LI Qiusheng, WANG Qiwen, et al. Inverse analysis of wind loads on tall-buildings[J]. Building Structure, 2013, S1:954-959. (in Chinese)
[5] 宝志雯, 陈志鹏. 从建筑物的脉动响应确定其动力特性[J]. 深圳大学学报, 1986(1):36-49. BAO Zhiwen, CHEN Zhipeng. Experimental determination of dynamic characteristics of a structure by means of its ambient response signals[J]. Journal of Shenzhen University, 1986(1):36-49.(in Chinese)
[6] 王济, 胡晓. MATLAB在振动信号处理中的应用[M]. 北京:中国水利水电出版社, 知识产权出版社, 2006:104-105. WANG Ji, HU Xiao. Application of MATLAB in Data Processing for Vibration Signals[M]. Beijing:China Water & power Press, China Intellectual Property Press, 2006:104-105. (in Chinese)
[7] 尚扬. 基于实测加速度的高层建筑风荷载反演研究[D]. 长沙:湖南大学, 2014. SHANG Yang. Inversion Research on Wind Load of High-rise Building Based on Observational Acceleration[D]. Beijing:Hunan University, 2014.(in Chinese)
[8] 梁枢果, 李辉民, 瞿伟廉. 高层建筑风荷载计算中的基本振型表达式分析[J]. 同济大学学报:自然科学版, 2002, 30(5):578-582. LIANG Shuguo, LI Huimin, QU Weilian. Analysis of fundamental mode shape expressions of tall building for evaluating wind loads[J]. Journal of Tongji University, 2002, 30(5):578-582.(in Chinese)
[9] 张相庭. 重大工程结构随机振动分析中基于功能原理的团集等效体系的研究[J]. 振动与冲击, 1995(2):7-11. ZHANG Xiangting. Study of random vibration of major engineering structure for equivalent-lumped system based on work-energy principle[J]. Journal of Vibration and Shock, 1995(2):7-11.(in Chinese)
[10] 傅学怡. 实用高层建筑结构设计[M]. 北京:中国建筑工业出版社, 2010:72-102. FU Xueyi. Applied Structural Design of Tall Building[M]. Beijing:China Architecture & Building Press, 2010:72-102.(in Chinese)
[11] 赵西安, 钱庾青. 高层建筑结构分层模型弹塑性动力分析[J]. 固体力学学报, 1982, 4(8):442-448. ZHAO Xian, QIAN Yuqing. Multimass system for dynamic response analysis of tall building structure[J]. Acta Mechanica Solida Sinica, 1982, 4(8):442-448. (in Chinese)
[12] R.克拉夫, J.彭津. 结构动力学(第2版)[M]. 北京:高等教育出版社, 2006:183-185. Clough R, Penzien J. Dynamics of Structures (Second Edition)[M]. Beijing:Higher Education Press, 2009:183-185.(in Chinese)
[13] GB 50009-2012建筑结构荷载规范[S]. 北京:中国建筑工业出版社, 2012. GB 50009-2012 Load Code for the Design of Building Structures[S]. Beijing:China Architecture & Building Press, 2012.(in Chinese)

相似文献/References:

[1]胡传平,杨昀.高层建筑火灾情况下利用电梯疏散的案例研究[J].自然灾害学报,2007,(04):097.
 HU Chuan-ping,YANG Yun.A case study on fire evacuation by elevator in highrise building[J].,2007,(03):097.
[2]曾桂香,郭呈祥.高层建筑顶部细小突出物的鞭梢效应[J].自然灾害学报,2008,(04):143.
 ZENG Gui-xiang,GUO Cheng-xiang.Whipping effect of small protrusions at top highrise builading[J].,2008,(03):143.
[3]张叶,何嘉鹏.高层建筑火灾安全疏散二级灰关联评估[J].自然灾害学报,2009,(01):024.
 ZHANG Ye,HE Jia-peng.Two-level grey relational evaluation of safe evacuation in highrise building fires[J].,2009,(03):024.
[4]董军,毛黎明,季克和.复杂环境中玻璃幕墙设计风压风洞试验[J].自然灾害学报,2009,(06):175.
 DONG Jun,MAO Li-ming,JI Ke-he.Wind tunnel test for design wind pressure of glass curtain wall in complex environment[J].,2009,(03):175.
[5]李正农,周振纲,朱旭鹏.桩-土非线性动力相互作用简化模型[J].自然灾害学报,2013,(06):252.
 LI Zhengnong,ZHOU Zhengang,ZHU Xupeng.Simplified model of nonlinear pile-soil dynamic interaction[J].,2013,(03):252.
[6]李永贵,李秋胜.高层建筑中庭表面风压特性的试验研究[J].自然灾害学报,2014,(01):047.[doi:10.13577/j.jnd.2014.0107]
 LI Yonggui,LI Qiusheng.Experimental investigation on characteristics of wind pressure on atrium facades of tall building[J].,2014,(03):047.[doi:10.13577/j.jnd.2014.0107]
[7]林鹏,赵春梅,卢兆明,等.性能化火灾安全评估应用个案研究[J].自然灾害学报,2006,(01):074.
 LIN Peng,ZHAO Chun-mei,S. M. Lo,et al.Case study on application of performance-based fire safety evaluation[J].,2006,(03):074.
[8]杨柯,李秋胜,王冰笛.基于实测台风数据的超高层建筑非线性计算[J].自然灾害学报,2006,(03):101.
 YANG Ke,Q. S. Li,WANG Bing-di.A nonlinear numerical research on super-tall building based on typhoon measurements[J].,2006,(03):101.
[9]刘仲伟,孙景江,丁宝荣,等.考虑地震动频谱成分的高层结构易损性初步研究[J].自然灾害学报,2014,(05):045.[doi:10.13577/j.jnd.2014.0506]
 LIU Zhongwei,SUN Jingjiang,DING Baorong,et al.Preliminary study on vulnerability of highrise buildings considering spectrum of ground motion[J].,2014,(03):045.[doi:10.13577/j.jnd.2014.0506]
[10]李正农,康建彬.风场和周边环境干扰对高层建筑平均风压的影响[J].自然灾害学报,2014,(05):211.[doi:10.13577/j.jnd.2014.0527]
 LI Zhengnong,KANG Jianbin.Influence of wind fields and surrounding interference on the mean wind pressure of high-rise buildings[J].,2014,(03):211.[doi:10.13577/j.jnd.2014.0527]

备注/Memo

备注/Memo:
收稿日期:2016-06-10;改回日期:2016-12-10。
基金项目:国家自然科学基金项目(51278190,51178180,51478179);浙江省自然科学基金项目(LY12E08010)
作者简介:李正农(1962-),男,教授,博士,主要从事结构抗震抗风研究.E-mail:zhn88@263.net
更新日期/Last Update: 1900-01-01