橋梁伸縮縫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梳狀橋梁伸縮縫裝置鋼板表面采用防滑槽，增加汽車與鋼板的摩擦力，達到防滑效果。

　　行駛平穩:橋梁伸縮縫裝置的伸縮功能是通過齒輪鋼板之間的相對滑動來完成的。采用剛柔連接方式，消除汽車行駛時的振動現象，減少對橋梁的沖擊。結構高度低:采用有限橋梁伸縮縫裝置，允許伸縮量40~400mm，結構高度100~150mm?？捎糜诠窐蛄?、高架橋和城市立交，尤其適用于舊橋改造。

　　橋梁伸縮縫施工安裝前，根據圖紙設計尺寸檢查梁端和橋臺安裝伸縮縫預留槽的尺寸。澆筑現澆梁前，應根據施工季節的氣溫情況預留各尺寸的縫寬，并在伸縮縫處預留位置準確的洞口鋼筋；水在建造平石混凝土之前，檢查它是否預留伸縮縫尺寸和配筋；澆筑攤鋪混凝土前，檢查縱向鋼筋是否伸出攤鋪混凝土端部；由于本橋縱坡為3.72%，橋面鋪裝瀝青混凝土時，應在伸縮縫處提前鋪設竹膠板或棉絮，伸縮縫處瀝青攤鋪機不得停止鋪裝，應按設計坡度進行鋪裝，并控制伸縮縫處瀝青路面的平整度。