栈桥结构的抗震计算,一般简化为平面单个体系,很少考虑整体工作,这与实际情况有不相符合之处。本文是从震害经验入手,通过十几条运煤栈桥动力特性的实测,找出它的振动性质,为研究它的计算方法提供依据。国内近几次强震对栈桥结构的薄弱部位均有明显损坏,根据震害特点,可归纳为:栈桥与建筑物间的连接部位损害;预制构件的震害,表现为屋面板与桥面板的预埋件拨出,致使 The seismic calculation of the trestle bridge structure is generally simplified to a single plane system, and the overall work is seldom considered. This is inconsistent with the actual situation. This article starts with the experience of earthquake damage, through the actual measurement of more than a dozen of coal transportation trestle dynamic characteristics, find out its vibration properties, and provide basis for the study of its calculation method. Nearly several strong earthquakes in China have obvious damage to the weak parts of the trestle structure. According to the characteristics of earthquake damage, they can be summarized as: the damage of the joint between the trestle and the building; the earthquake damage of the prefabricated components, manifested as the roof and bridge panel Embedded parts are allocated, resulting in