The importance of carrying out bearing and expansion joint inspections by proficient and competent engineers who understand their functionality can often be key to maximising a structure’s lifespan and avoiding major, unexpected, emergency repair costs.
Ekspan have carried out a number of projects for swing bridges and foot bridges. From design, fabrication of all structural components, to trial erection and final installation. Details of these type of bridge installations can be supplied on request.
Multi element expansion joints (often referred to as modular joints) are made up of modular lengths of steel beams with a gap between each beam fitted and locked together with watertight elastomeric seal profiles. Anchor loops are welded to the base of the joint at equal distances, which form part of the fitting mechanism and also reinforces the joint.
The fitted elastomeric control springs coordinate individual movements of the beams in conjunction with the elastomeric profiles, enabling the multi element joint to absorb any combination of movement in all directions. This system of movement control greatly reduces the forces acting directly on the other expansion joint components and also on the adjacent bridge structure, thus extending the life span of the entire system.