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由于桥址处台风多、风况复杂,为保证桥梁抗风安全,对主桥斜拉桥成桥状态、施工最大单悬臂状态进行了动力特性计算、风载内力计算和抖振响应计算,并给出了相应的计算结果。结果表明该桥无论是成桥状态还是施工状态均具有足够的抗风稳定性。
Due to the typhoons at the bridge site and complicated wind conditions, dynamic characteristics calculation, internal forces calculation and buffeting response calculation were carried out for the state of bridge construction of the main bridge and the maximum single-arm construction condition in order to ensure the wind resistance and safety of the bridge. The corresponding calculation results are given. The results show that the bridge has enough wind-resistant stability both in the bridge state and the construction state.