复杂多连体大跨度结构的风压与等效静风荷载模拟和分析  

Simulation and Analysis of Wind Pressure and Equivalent Static Wind Loads of Multi-Body Structure with Complex Shape

作　　者：马宁[1] 汪汛[1] 周岱[1,2] 朱飞[1] 王子通 洪荣华[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240

出　　处：《上海交通大学学报》2016年第3期351-356,363,共7页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金项目(51278297);高等学校博士学科点专项科研基金项目(20130073110096);上海市领军人才计划项目(13XD1402100)资助

摘　　要：以上海世博会后的世博博物馆"欢庆之云"复杂形体大跨度新建工程为背景对象,运用数值模拟方法,研究在不同风向角来风且存在周边建筑风场干扰的情形下,表面曲率多变的多连体大跨空间建筑结构的表面风压、阵风系数和等效静风荷载.对风压云图和分区域风压系数进行了分析,并基于峰值因子法求解阵风系数,进而提出了考虑最不利风向角的等效静风荷载.Taking the great building ＂Clouds of Celebration＂ which is a part of Shanghai World Expo Muse- um as the object, numerical simulation techniques were utilized to investigate the wind pressure distribu- tion, the gust factors （GFs） and the equivalent static wind loads （ESWL） of the complex multi-body spa- tial structure with consideration of mutual interference of wind fields around surrounding buildings under different incoming wind directions. Besides, the wind pressure nephograms and local zone pressure coeffi- cients were discussed, the gust factors were obtained by means of the peak factor method, and the ESWL were determined, taking the most unfavorable incoming wind directions into account.

关 键 词：多连体结构 风压分布 阵风系数 等效静风荷载 

分 类 号：TU312.1[建筑科学—结构工程]