点击次数：

发布时间：2019-03-09

论文类型：期刊论文

发表时间：2012-08-01

发表刊物：JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS

收录刊物：EI、SCIE

卷号：107

页面范围：17-27

ISSN号：0167-6105

关键字：Three influencing factors of wind-rain-induced static forces; Simultaneous actions of wind and rain; Bridge deck; Wind tunnel test

摘要：The three influencing factors of wind-rain-induced static forces were analyzed aiming at the phenomenon of simultaneous actions of wind and rain for long-span bridge decks, based on the analysis of static load on the bridge deck. The test method for measuring the three influencing factors of wind-rain-induced static forces on a bridge deck was given. The wind-rain-induced static characteristics test was carried out in the surroundings of simultaneous actions of wind and rain built in an atmospheric boundary layer wind tunnel, taking a separated twin-box girder bridge as research object. The experimental results display that the rainfall can increase the wind-induced drag force on the bridge deck. The wind-rain-induced drag force on the bridge deck increaes with increasing rainfall intensitis. Among the three influencting factors, the change in wind field due to rainfall and water film on the bridge deck surface has the dominant effect on the wind-induced drag force on the bridge deck section. (C) 2012 Elsevier Ltd. All rights reserved.