西南交通大学学报2001，Vol.36Issue(1)：8-11,4.
大跨度刚构桥悬臂施工状态的抗风性能研究
Study on Wind Resisting Performance of Long-Span Rigid Frame Bridgein Its Cantilever Construction Stage
摘要
Abstract
In this paper, the study is conducted around a three spanprestressed concrete (PRC) continuous rigid frame bridge with a main span of 190 m and cons isting of two parallelly-arranged roadway box girders. By wind tunnel tests of an aeroelastic model, the aerodynamic coefficients of the front and rear girders are discussed and the effect of horizontal angle of airflow β on these coefficients is also studied. Then, a measurement using the thin plate to connect horizo ntally the two parallelly-arranged box girders is taken, and its vibration supp ressing effect on the wind induced response is analytically discussed. It is shown that for long span rigid frame bridges with two parallelly-arranged roadway box girders, connecting horizontally the two girders in cantilever constructions tage can reduce the wind induced horizontal vibration response effectively and easily.关键词
风洞试验/刚构桥/抗风性能分类
交通工程引用本文复制引用
郑史雄,廖海黎,周述华..大跨度刚构桥悬臂施工状态的抗风性能研究[J].西南交通大学学报,2001,36(1):8-11,4.
