Modular bridge expansion joints are separated from the load-bearing structure and the displacement control system. The two do not interfere with each other when they are stressed, and have a clear division of labor. This not only ensures safety when stressed, but also achieves uniform displacement, so that all center beams can be controlled in one displacement control box. The traditional method of supporting both internal and external parts on the same vertical beam is very beneficial to large displacement telescopic devices. It reduces the number of beams, reduces the volume of the displacement control box to the minimum range, and saves steel. This structure also overcomes the harsh conditions of obliquely supported telescopic devices that require high processing and assembly accuracy. Otherwise, the four-link structure is prone to self-locking, which affects the freedom of telescopic expansion and makes it difficult to ensure uniform displacement. Each connection point of the GQF-MZL bridge telescopic device structure adopts a structure that can both rotate and slide. Therefore, it has strong adaptability to curved, sloped, inclined and wide bridges and can meet the requirements of various bridge structures.
 

Hebei Ansha New Material Technology Co., Ltd. is located in Binhu New District of Hengshui City. We specialize in R&D and production of seismic isolation and damping products for both buildings and bridges. Our products include rubber bearings, spherical bearings, friction pendulum systems, fluid viscous dampers, tuned mass dampers, buckling-restrained braces, friction dampers and metallic dampers. In addition, we manufacture bridge expansion joints and fiber-enhanced plastic products.
We have established state-of-the-art physical and chemical laboratories and specialized production lines. Our company operates in full compliance with the ISO9001:2015 Quality Management System, ISO14001:2015 Environmental Management System, and ISO45001:2018 Occupational Health and Safety Management System.
Guided by the anti-seismic design principle of "resisting collapse in a major earthquake, enabling repair in a moderate earthquake, and remaining undamaged in a minor earthquake", we offer our customers a comprehensive array of services. These services include technical consultation, structural analysis and calculation, design optimization, research and development, manufacturing, installation guidance, performance monitoring, maintenance and repair.

1. Advanced equipment. Our workshop has more than 100 pieces of the most advanced equipment to ensure timely delivery of large orders. In addition, standardized production can be guaranteed to comply with international standards.

1. Are you a trading company or manufacturer?
   We are manufacturer and have our own factory
2. What certificate do you get?
    ISO9001:2015 quality management system certification,
    ISO14001:2015 environmental management system certification, 
    ISO45001:2018 occupational health and safety management system certification