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为了分析在不同激励下振动对古建筑的影响,选择苏州市省级文物保护单位——玉涵堂古建筑进行振动测试。记录了环境振动、地下轨道交通激励、人群社会活动激励和音响激励四种工况时一座两层砖木阁楼的振动信号。发现经过严格振动控制的地下轨道交通激励对古建筑振动的贡献可以忽略;环境振动和音响激励时段古建筑横向振动速度达标,而人群社会活动激励时段横向振动速度超标。从古建筑的建筑结构和功能区域划分以及人的激励形式三个方面对通常被忽视的人的因素进行了探讨,并提出了相应的减振措施。研究成果为其它类似两层砖木阁楼古建筑防护提供依据。
In order to analyze the influence of vibration on ancient buildings under different incentives, the vibration test of the ancient buildings of Yu Han Tang, a provincial-level cultural relic protection unit in Suzhou City, was conducted. The vibration signal of a two-storey brick-wood loft was recorded under four working conditions of environmental vibration, underground track traffic excitation, crowd social activity stimulation and acoustic stimulation. It is found that the contribution of underground railroad traffic stimuli under strict vibration control to the vibration of ancient buildings can be neglected. The horizontal vibration velocity of ancient buildings during environmental vibration and acoustic excitation period has reached the standard, while the horizontal vibration velocity of crowd during the period of social activity excitation exceeds the standard. From the three aspects of the architectural structure and functional area of ancient buildings and the human form of encouragement, the factors of people who are usually neglected are discussed, and the corresponding measures of vibration reduction are put forward. The research results provide the basis for the protection of other similar two-story brick and wood loft buildings.