桥梁伸缩缝Its function is to adjust the displacement and connection between superstructure caused by vehicle load and bridge building materials. once the telescopic device of skew bridge is destroyed, it will seriously affect the speed and comfort of driving, and even cause traffic accidents. Active slag removal: the bridge expansion joint device consists ofCushion effect on stainless steel plate, so that the slag debris can only be left on the surface to actively discharge the debris from the tooth gap by means of the expansion and contraction process of the comb-shaped steel plate and the driving effect of the vehicle.
2 has waterproof function: the bridge expansion joint device is provided with two layers of chloroprene rubber waterproof layers, and waterproof ointment is poured between the comb-shaped steel plates, so that the waterproof result is achieved, and the corrosion of the steel plates is maintained, which extends the service life of the expansion joint device. be non-slip梳状桥梁伸缩缝装置钢板表面采用防滑槽，增加汽车与钢板的摩擦力，达到防滑效果。
行驶平稳:桥梁伸缩缝装置的伸缩功能是通过齿轮钢板之间的相对滑动来完成的。采用刚柔连接方式，消除汽车行驶时的振动现象，减少对桥梁的冲击。结构高度低:采用有限桥梁伸缩缝装置，允许伸缩量40~400mm，结构高度100~150mm。可用于公路桥梁、高架桥和城市立交，尤其适用于旧桥改造。
桥梁伸缩缝施工安装前，根据图纸设计尺寸检查梁端和桥台安装伸缩缝预留槽的尺寸。浇筑现浇梁前，应根据施工季节的气温情况预留各尺寸的缝宽，并在伸缩缝处预留位置准确的洞口钢筋；水在建造平石混凝土之前，检查它是否预留伸缩缝尺寸和配筋；浇筑摊铺混凝土前，检查纵向钢筋是否伸出摊铺混凝土端部；由于本桥纵坡为3.72%，桥面铺装沥青混凝土时，应在伸缩缝处提前铺设竹胶板或棉絮，伸缩缝处沥青摊铺机不得停止铺装，应按设计坡度进行铺装，并控制伸缩缝处沥青路面的平整度。