|
|||||
|
|
| 重庆大宁河特大桥成桥状态抖振响应分析 | |
| 引用本文： | 张亮亮,杨转运,刘会,张金梅,田维峰.重庆大宁河特大桥成桥状态抖振响应分析[J].实验流体力学,2010,24(5). |
| 作者姓名： | 张亮亮 杨转运 刘会 张金梅 田维峰 |
| 作者单位： | 1. 重庆大学土木工程学院,重庆,400045 2. 重庆大学土木工程学院,重庆,400045;四川建筑职业技术学院,四川,德阳,618000 3. 四川建筑职业技术学院,四川,德阳,618000 |
| 基金项目： | 国家自然科学基金资助项目(50778185); “211工程”三期建设(项目编号:S-09105) |
| 摘 要： | 目前桥梁的抗风研究主要针对平原开阔地区,复杂山地风作用下桥梁的抗风问题研究很少。以重庆大宁河钢桁架特大拱桥为对象,通过现场实测,得到了该桥桥址处的风环境特性,包括平均风速沿高度的变化规律、湍流强度、脉动风功率谱密度函数以及湍流积分尺度等参数。根据风特性参数,计算出该桥在成桥状态下的抖振力和响应值,结果表明:即使在45m/s风速下,抖振位移响应也在公路桥梁抗风设计规范(JTG/T D60-01-2004)规定范围内。山区地貌中的平均风速沿高度的变化规律不符合公路桥梁抗风设计规范给出的指数变化率分布,湍流强度明显大于规范值。 |
| 关 键 词： | 西部地区 风环境 大跨度拱桥 抖振力 抖振响应 |
Full bridge buffeting response analysis of Chongqing Daning River Bridge |
|
| ZHANG Liang-liang,LIU Hui,YANG Zhuan-yun,ZHANG Jin-mei,TIAN Wei-feng.Full bridge buffeting response analysis of Chongqing Daning River Bridge[J].Experiments and Measur in Fluid Mechanics,2010,24(5). | |
| Authors: | ZHANG Liang-liang LIU Hui YANG Zhuan-yun ZHANG Jin-mei TIAN Wei-feng |
| Institution: | ZHANG Liang-liang1,LIU Hui1,2,YANG Zhuan-yun2,ZHANG Jin-mei2,TIAN Wei-feng1(1.School of Civil Engineering,Chongqing University,Chongqing 400045,China,2.Sichuan College of Arch Technology,Deyang Sichuan 618000,China) |
| Abstract: | At present,the study of bridge wind resistance is mainly about the bridge on open plain areas,and for the bridge under complex mountain wind in the western region of China,the wind resistance research for bridge engineering is few.Combined with practical engineering example of Daning River Bridge in Chongqing wind environmental characteristics through on-site measurement had been obtained,including wind profiles,turbulence intensity,power spectral density function of fluctuating wind and turbulence integral... |
| Keywords: | western region wind environment large-span arch bridge buffeting force buffeting response |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |