SG-type bridge expansion joint device bridge expansion joints, is by the Shanghai Municipal Engineering Design Institute, Shanghai Rubber Factory Rubber Factory and Hunan Provincial Road and Bridge Company in 1991 jointly developed Modular bridge expansion joint device products. Characteristics and principles of bridge expansion joints constructed bridge expansion joints consist of two basic components: a bridge structure across - the beams across the gap joints to withstand dynamic load of the vehicle, and passed to the bridge structure; in the middle of I-shaped steel Liang - in the middle between the side beams and beam or beams of two intermediate gusset structure, neoprene gasket unit in the form of a parallel structure joints position, bridge expansion joints to form a continuous barrier layer . The device uses ordinary beam made of separate beams, steel beams at the top surface of a recessed separate board, which is linked with the formation of the cover with high strength bolts rubber molding (bird-shaped) fastening position. Activities beams with a thickness of 15 ~ 28mm steel plate welded and heat-treated to eliminate welding stress, which is arranged pitch 1.5mm. Bridge bridge expansion joints sd, should be able to meet the retractable beam structure, even if the road or the nature of the type of bridge is different, conditions are different type, require telescopic device has good durability, the form of comfort, good water resistance, ease of construction of bridge expansion joints, easy and economical maintenance rationality. However, even if fully considered in the design, selection and reasonable structure, precision also meet the design requirements, the choice of high quality telescopic device. Construction and installation of bridge expansion joints ancient imperfect, not serious, careful bridge expansion sdii, use effect and durability will be significantly reduced. This point will only bring early breakage bridge expansion until completely destroyed bridge expansion c60, so very much hope that the construction is simple in structure. Bridge expansion joints once the damage occurs, it will seriously affect traffic, and even the safety of the computer, then you have to be repaired or completely replaced. Bridge expansion sdii | win-win cooperation manufacturers (certified) | bridge expansion provided by the Engineering Rubber Co., Ltd. Hengshui HaoTong. Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) in the field of construction materials at the site devoted boundless enthusiasm and passion, Hao-engineering rubber has been customer-centric, the concept of creating value for customers, quality, service to win the market, and sincerely hope to cooperate with the community to create a successful, create brilliant. Related businesses welcomed the inquiry, Contact: Liu.