The vortex-induced vibration of the aqueduct girder may excite the parametric sloshing of the contained water which will have substantial impacts on the normal running and structural safety of the aqueduct bridge. This paper first conducts a wind-tunnel experiment to investigate the auto-parametric sloshing caused by wind vortex-induced vibration for an elastically-hung rectangular aqueduct with contained water. When the vortex excitation frequency is close to the natural frequency of the structure and approximately equal to twice the natural frequency of the fluid the vortex-induced resonance of the structure and the strong auto-parametric sloshing (internal resonance) of water successively occur in the test. The auto-parametric sloshing for the non-internal resonance case is also experimentally investigated. The contained water can be simplified as a rigid mass for the stability analysis of sloshing. The instability boundaries of sloshing and the corresponding wind speed regions are theoretically determined and compared with the experimental results

渡槽梁的涡激振动可能会激发所含水的参量晃荡，这将对渡槽桥的正常运行和结构安全产生重大影响。本文首先进行了风洞试验，研究了由风涡激振动引起的弹性悬垂矩形含水渡槽的自参数晃动。当涡激频率接近结构的固有频率并且大约等于流体固有频率的两倍时，结构的涡激共振和水的强自参数晃动（内部共振）相继发生在测试。还对非内部共振情况下的自参数晃动进行了实验研究。对于晃动的稳定性分析，所含的水可以简化为刚性质量。理论上确定了晃荡的不稳定边界及对应的风速区域，并与实验结果进行了比较