Bridge expansion joints bridge expansion joints: refers to the deformation of the bridge to meet the requirements, usually between two end of the beam, or set the position articulated joints on the bridge between the end of the beam and abutment. Requires expansion joints in parallel, perpendicular to the axis of the bridge in both directions, can freely scalable, secure and reliable vehicle should be smooth too, no sudden jump and noise; to be able to prevent the infiltration of rainwater and mud blocked garbage; installation, inspection, maintenance , to be simple and easy to eliminate dirt. Set expansion joints, railings and the bridge deck to be disconnected. Bridge expansion joints role: that regulation of the upper structure by the vehicle load and bridge materials caused by the displacement between and bonding. Skew bridge stretching device is damaged, it will seriously affect driving speed, comfort and safety, even cause traffic accidents. Bridge expansion joints bridge expansion joints are generally free docking, steel bearing type, the combination of shear (plate), and the elastic modulus-bearing device. Butt-type bridge expansion joints butt joints devices, depending on their structural form and mechanical characteristics can be divided into packing and embedded solid butt butt-type two. Butt telescopic device is packed asphalt, wood, oakum, rubber and other materials filling the gap, stretching the body in any case a state of compression. Such telescopic device for stretching the amount of general on 40mm or less conventional engineering, but have been rare. Docking embedded solid expansion joint device using different forms of steel members of different shapes rubber strip (band) embedded firmly fixed, and the rubber strip (band) to absorb the deformation of tension and compression deformation of the beam, which can be in the body by stretching overpressure condition. Also in tension. When modulus supported bridges bridge expansion joints when stretching deformation amount exceeds 50mm, often with steel telescopic device. The telescopic device when the vehicle travels often due to the end of the beam generated by the rotation or deflection slap effect, noise, and easy to make structural damage. Therefore, with a bolt requires the use of spring means to fix the slide plate to reduce the rattling and noise, the joints of the structure is relatively complicated. Cut Bridge Expansion Joints of the device is the use of a variety of different cross-sectional shape of the rubber band as a caulking material telescopic device. The rubber elastic, easy to paste, but also to meet the requirements and have the waterproof deformation. In domestic and foreign bridge engineering it has been widely used. Steel plate rubber expansion joints supported bridges telescopic devices in this category, it is difficult to meet the requirements of a large amount of displacement; steel type of telescopic device, it is difficult to achieve watertight seal, and easy to impact on the vehicle, the impact of the vehicle driving performance. Therefore, there has been a good performance and easy to use shock-absorbing cushion so that sealed rubber material, and the strength of high-performance good shaped steel combination, in the case of a large amount of displacement can withstand all kinds of die number of vehicle load-bearing (Modular ) bridge expansion series. Elastomeric bridge expansion joints elastomer telescopic device into zinc metal joints and TST gravel expansion joint, elastomer telescopic device is a simple means of expansion joints, the small span of the bridge, when the amount of stretching in the 20mm-40mm TST can be used within the gravel when the elastic expansion joint device, specially after the TST elastic-plastic material melted by heating, the heating of gravel poured into the cleaned, that the formation of elastic joints TST gravel, gravel to support vehicle load, TST elastoplastic body at a 25 ℃ ~ 60 ℃ condition to meet the amount of stretching requirements. The company specializes in the production of bridge expansion joints www.hsjianshuo.com welcome to buy