连续梁拱组合结构气动特性研究

Nonlinear time-domain buffeting response analysis of continuous beam-arch composite structures

为考察风攻角、护栏对桥梁气动性的影响,以连续梁拱组合结构为例,对结构的气动特性进行研究,然后在不同风攻角、有无护栏的情况下,对连续梁拱组合结构各部分响应进行对比分析,得到风攻角和护栏在进行模拟分析时都是必须考虑的影响因素,对桥梁激励振动分析做好必要的分析准备,以及对同类桥梁考虑气动性提供一定的参考。

To investigate the influence of wind attack angle and guardrail on the aerodynamic characteristics of the bridge, based on continuous beam arch combination structure as an example, study the aerodynamic characteristics of the structure, and then to different wind angle of attack, with or without guardrails, under the condition of the continuous beam arch combination structure response, this paper compares and analyzes the parts get wind angle of attack and fence when simulation analysis is must consider the influence of factors, for this kind of bridge aerodynamic a- nalysis has certain reference value.