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Expansion JointsExpansion Joints IconExpansion Joints

Expansion Joints

Marcon’s experience in transportation and infrastructure has resulted in contributions to countless expansion joint configurations and implementations. This perspective along with our technical expertise in structural dynamics, enables our team to respond to sophisticated construction and rehabilitation requests.

Enabling Expansive Structures

As engineering and fabrication specialists of vital bridge components, every project is approached with a meticulous eye for detail to ensure quality and client satisfaction. Our expansion joint systems are configured and scaled to meet specific structural requirements. In every design, we aim to achieve a product that is resilient, maintainable, quiet and watertight. Where necessary, Marcon stocks replacement rubber products to facilitate quick response times.

Notable Projects

  • Deck Replacement — Lions Gate Bridge, Vancouver CAN
  • Seismic Upgrades — Granville St. Bridge, Vancouver CAN
  • Seismic Upgrades — Burrard St. Bridge. Vancouver CAN
  • Finger Joints — Fort Nelson Bridge, Fort Nelson CAN

Joint Design In Detail

Finger Joints

Marcon conducts advanced engineering and production of interlocking finger joints. This open joint orientation allows the greatest degree of movement and is often found at abutments of long-spanning structures. To accommodate the relative size of a bridge, Marcon facilities host a range of machining capacities, including a 5-face vertical bridge mill with a bed capacity of 8’ x 24’. These capacities along with our technical expertise enable Marcon to produce sizable expansion systems that are resilient and maintainable. Our patented cantilever rotating finger joint offers unmatched movement capacity in the longitudinal, transverse and vertical axis—ideal for skew or seismically vulnerable joints.

Strip Seal Joints

Strip seal joints are most commonly found on traffic structures that require a watertight seal and a modest amount of movement (up to 7-inches). This closed joint orientation houses a v-shaped seal that is fitted to both steel beams for a watertight barrier. For added resilience, strip seal joints can be configured with a variety of anchoring orientations which negate the need for a brittle concrete header and disruptive repair work.