泰州大桥桥塔区桥面风环境改善措施分析和风障研究

Analysis of Wind Environment Improvement and Windscreen Research on Bridge Deck Area of Taizhou Bridge

以泰州大桥桥塔区桥面风环境为研究对象,针对桥面横风下的原设计方案及加设不同风障的多种情况,采用数值风洞技术进行了仿真计算与分析,得出了适用于泰州大桥的风障布置方案;通过风障障条风荷载数值模拟、风障结构风荷载作用有限元建模以及风障结构风荷载响应分析,验证了所设计的风障方案的结构安全性满足相关规范要求。

In this paper,the wind environment of the bridge deck near the Taizhou bridge tower area is taken as the research object.Aiming at the original design scheme of bridge deck under cross wind,the numerical wind tunnel technology is used to simulate the various situations with different windscreens.The reasonable layout scheme of windscreen for Taizhou bridge is obtained.Through finite element modeling and numerical simulation,both the barrier bar and support structure of windscreen under wind load are analyzed.The result show that the structural safety of the designed windscreen satisfied the requirement of relevant specifications.