中文摘要：

以港珠澳大桥跨崖13—1气田管线变截面连续梁桥主桥为背景，设计制作全桥气弹模型，通过风洞试验研究大跨度连续梁桥抗风性能。均匀流条件试验结果表明，大跨度连续桥梁颤振稳定性很好，但存在发生涡激振动的可能。试验研究出附加结构阻尼的机械措施作为有效降低涡激振动的方案。紊流条件下抖振试验结果表明连续梁桥抖振响应很小。

英文摘要：

Based on the crossing Ya 13th continuous beam bridge, the aeroelastic model is designed and made to study the wind-resistance performance of long-span continuous beam bridge through wind tunnel tests. The tests results show that it is free of fluttering, but is apt to vortex induced vibration. A kind of additional damping can suppress the vortex induced vibration. Results of buffeting vibration test under the turbulent flow show that the bridge buffeting response is very small.