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随着城市交通量日益增加以及连续梁、连续桥面的采用,以往采用的某些桥面伸缩缝将不再适用,加之近年来采用的桥面伸缩缝行车损坏比较严重,所以施工和管理单位急于寻求一种坚固、耐用又适应目前生产能力及维修能力的桥面伸缩缝,为此有必要回顾一下北京市曾经使用过的而且有代表性的几种桥面伸缩缝使用状况及损坏、维修情况。
With the increasing traffic volume in the city and the continuous beam and continuous bridge deck, some of the bridge deck expansion joints used in the past will no longer be suitable. In addition, the bridge deck expansion joints used in recent years have serious damage, so construction and management units Eager to find a strong, durable and adaptable to the current production capacity and maintenance capacity of the bridge expansion joints, it is necessary to review what Beijing has used and representative of several types of bridge expansion joints use and damage, maintenance Happening.