Wanbao SEAM TYPE Modular Joints has been widely used for decades. This experience results in joints which are well-proven, long-lasting, quiet and low-maintenance.
Middle beams divide the movement range at the end of a bridge deck into individual gaps, permitting easy passage of traffic. They are connected with special sealing profiles to form a water-tight unit.
Quality guarantee:
•Movement in any direction and rotation about any axis possible at any time.
•All structural elements of WanbaoSEAM Type modular expansion joints are made from high quality materials. Production is in accordance with the latest ISO 9001:2000 quality assurance requirements.
•Wanbao SEAM Type modular expansion joints have been successfully tested for fatigue and wear at independent institutes.
•Clever design facilitates the exchange of individual parts as necessary without difficulty.
•Wanbao SEAM Type modular expansion joints have no loose or moving steel components which would be susceptible to damage from frequent load changes. Movement and torsion are facilitated by lubricated PTFE and high-grade stainless steel, and by elastomeric components and plastics.
•The elasticity of the support system absorbs shocks and vibrations and also permits transverse movements. It also allows vertical movements and rotations.
•Wanbao SEAM Type modular expansion joints have an elastic self-regulating gap control system. This system increases the durability of the whole structure, because it helps to absorb the dynamic loads from the traffic passing over it. Any potential damage to the structure caused by the “blocking“ of an individual gap (e.g. by trapped debris) is effectively averted due to the independent elasticity of the steering system.
•Only a relatively small recess space is required for the installation of Wanbao SEAM Type modular expansion joints on bridges and abutments. The asymmetrical arrangement of the joist beam boxes means that they can be adapted to a wide range of situations on site.
