[1]冯若强,丁静鹄,李庆祥,等.肋环型单层曲板网壳结构的风振响应及等效静风荷载[J].东南大学学报(自然科学版),2012,42(2):328-333.[doi:10.3969/j.issn.1001-0505.2012.02.026]
 Feng Ruoqiang,Ding Jinghu,Li Qingxiang,et al.Wind-induced response and equivalent static wind load of single-layer Geiger lattice shell with curved plate[J].Journal of Southeast University (Natural Science Edition),2012,42(2):328-333.[doi:10.3969/j.issn.1001-0505.2012.02.026]
点击复制

肋环型单层曲板网壳结构的风振响应及等效静风荷载()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第2期
页码:
328-333
栏目:
土木工程
出版日期:
2012-03-20

文章信息/Info

Title:
Wind-induced response and equivalent static wind load of single-layer Geiger lattice shell with curved plate
作者:
冯若强12 丁静鹄1 李庆祥3 叶继红1
1 东南大学混凝土与预应力混凝土结构教育部重点实验室,南京 210096; 2 华南理工大学亚热带建筑科学国家重点实验室,广州510500; 3 广东省建筑科学研究院,广州510500
Author(s):
Feng Ruoqiang12 Ding Jinghu1 Li Qingxiang3 Ye Jihong1
1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China
2 State Key Laboratory of Subtropical Building Science, South China University of Technology,
关键词:
大跨结构 风洞试验 风致振动 等效静风荷载
Keywords:
large-span structure wind tunnel test wind-induced vibration equivalent static wind load
分类号:
TU393.3
DOI:
10.3969/j.issn.1001-0505.2012.02.026
摘要:
分析了肋环型单层曲板网壳结构的风荷载和风振响应,并对采用不同方法计算结构等效静风荷载的精度进行了比较.风洞试验结果表明:肋环型单层曲板网壳结构屋面主要受负风压作用; 但在90°风向角下,由于体育馆受前方入口建筑的影响,屋盖边缘局部出现正风压.风振响应分析结果表明:有多阶振型参与结构的风致振动,高阶模态影响不可忽略; 为保证结构表面所有节点位移准确,结构的模态耦合项不能忽略.但如果只保证较大位移处的准确性,忽略模态耦合项的SRSS方法也是可取的.利用LRC惯性力法和改进LRC方法计算肋环型单层曲板网壳结构的等效静风荷载,可以保证所有风向角下节点的最大位移等效,但不能保证所有节点的位移等效.
Abstract:
The wind pressure and the wind-induced vibration of a single-layer Geiger lattice shell with curved plate are analyzed. Different methods are used to calculate the equivalent static wind load, and the calculation accuracy are compared. The results of the wind tunnel experiment show that the wind pressure is mostly negative on the single-layer Geiger lattice shell with curved plate. But under the 90° wind direction, because of the flow obstruction of the front building, the positive pressure appears on some area of the roof’s edge. The wind-induced response analysis results show that many modes make contribution to the structural wind-induced response, and the higher modes should be considered. Subjected to the fluctuating wind load, the mode coupling should be considered in order to obtain a good accuracy of the wind-induced response for all the structural nodes. If only the accuracy of the larger displacement is needed, the square root sum of square(SRSS)method which ignores the mode coupling can be also used. It is found that both the load-response correlation(LRC)with inertia force method and the modified LRC method for calculating the equivalent static wind load of the single-layer Geiger lattice shell with curved plate can ensure the equivalence of the largest displacements rather than all the nodal displacements.

参考文献/References:

[1] 沈世钊.大跨空间结构的发展——回顾与展望[J].土木工程学报,1998,31(3):5-14.
  Shen Shizhao.Development of long-span structures — a review and prospect[J].China Civil Engineering Journal,1998,31(3):5-14.(in Chinese)
[2] 冯若强,武岳,沈世钊.鞍形索网屋盖结构风振响应分析的Ritz-POD法[J].工程力学,2006,23(12):73-79.
  Feng Ruoqiang,Wu Yue,Shen Shizhao.Wind-induced response analysis of saddle-backed cable net roofs suing Ritz-POD method[J].Engineering Mechanics,2006,23(12):73-79.(in Chinese)
[3] 冯若强,李庆祥,武岳,等.单层平面索网幕墙结构的非线性抗风设计方法[J].土木工程学报,2009,42(2):39-44.
  Feng Ruoqiang,Li Qingxiang,Wu Yue,et al.Nonlinear wind-resistance design method of cable net facade[j].China Civil Engineering Journal,2009,42(2):39-44.(in Chinese)
[4] 张文元,武岳.某景观烟囱顺风向风振响应分析与风振系数确定[J].建筑结构,2010,40(2):97-99.
  Zhang Wenyuan,Wu Yue.Analysis on along-wind-induced responses and determination of gust response factor on a landscape chimney[J].Building Structure,2010,40(2):97-99.(in Chinese)
[5] 赵杨,武岳.几种非平稳分析方法对非平稳风力时程的比较分析[J].土木工程学报,2011,44(9):51-57.
  Zhao Yang,Wu Yue.Comparison of several non-stationary methods for analysis of time history of non-stationary wind pressure[J].China Civil Engineering Journal,2011,44(9):51-57.(in Chinese)
[9] 顾明,周暄毅.大跨度屋盖结构等效静力风荷载方法及应用[J].建筑结构学报,2007,28(1):125-129.
  Gu Ming,Zhou Xuanyi.Equivalent static wind loads of large-span roof structures[J].Journal of Building Structures,2007,28(1):125-129.(in Chinese)
[10] Holmes J D.Effective static load distributions in wind engineering[J].Journal Wind Engineering and Industrial Aerodynamics,2002,90(2):91-109.
[11] Kasperski M,Niemann H J.The LRC(load-response correlation)method:a general method of estimating unfavorable wind load distributions for linear and nonlinear structural behavior[J].Journal Wind Engineering and Industrial Aerodynamics,1992,43(1):1753-1763.
[12] 李玉学,杨庆山,田玉基.基于应变能等效的大跨屋盖结构背景响应等效静力风荷载[J].工程力学,2011,28(5):166-171.
  Li Yuxue,Yang Qingshan,Tian Yuji.Equivalent static wind load of large-span roofs based on energy equation[J].Engineering Mechanics,2011,28(5):166-171.(in Chinese)
[13] 李波,杨庆山,侯亚委,等.设置透风孔的超高层建筑风荷载特性[J].土木工程学报,2011,44(S1):38-44.
  Li Bo,Yang Qingshan,Hou Yawei,et al.Wind load characteristics of the super-tall building with through opening[J].China Civil Engineering Journal,2011,44(S1):38-44.(in Chinese)

相似文献/References:

[1]李兆霞,孙正华,郭力,等.结构损伤一致多尺度模拟和分析方法[J].东南大学学报(自然科学版),2007,37(2):251.[doi:10.3969/j.issn.1001-0505.2007.02.014]
 Li Zhaoxia,Sun Zhenghua,Guo Li,et al.Concurrent multi-scale modeling of structures and damage analyses[J].Journal of Southeast University (Natural Science Edition),2007,37(2):251.[doi:10.3969/j.issn.1001-0505.2007.02.014]
[2]张其林,闫雁军,李晗.张拉结构风致振动理论和试验研究[J].东南大学学报(自然科学版),2013,43(5):1087.[doi:10.3969/j.issn.1001-0505.2013.05.031]
 Zhang Qilin,Yan Yanjun,Li Han.Theoretical and experimental studies on wind-induced vibration of tension structures[J].Journal of Southeast University (Natural Science Edition),2013,43(2):1087.[doi:10.3969/j.issn.1001-0505.2013.05.031]
[3]王浩,柯世堂.基于风洞试验的四塔布置超大型冷却塔风致综合受力与稳定性能[J].东南大学学报(自然科学版),2018,48(2):330.[doi:10.3969/j.issn.1001-0505.2018.02.022]
 Wang Hao,Ke Shitang.Comprehensive performance of stress and stability of super large cooling tower under four-tower combination based on wind tunnel tests[J].Journal of Southeast University (Natural Science Edition),2018,48(2):330.[doi:10.3969/j.issn.1001-0505.2018.02.022]

备注/Memo

备注/Memo:
作者简介: 冯若强(1978—),男,博士,副教授, hitfeng@163.com.
基金项目: 国家自然科学基金资助项目(50908044)、国家杰出青年基金资助项目(51125031)、江苏省自然科学基金资助项目(SBK201123270)、亚热带建筑科学国家重点实验室开放基金资助项目(2011KA05).
引文格式: 冯若强,丁静鹄,李庆祥,等.肋环型单层曲板网壳结构的风振响应及等效静风荷载[J].东南大学学报:自然科学版,2012,42(2):328-333. [doi:10.3969/j.issn.1001-0505.2012.02.026]
更新日期/Last Update: 2012-03-20