Embodiments of an expansion joint are provided. The expansion joint is configured to cover a gap between a first architectural surface and a second architectural surface. The expansion joint includes a panel having a first surface and a second surface in which the second surface is opposite the first surface. When the panel covers the gap, the panel is magnetically connected to both of the first architectural surface or the second architectural surface. In specific embodiments, at least one of the magnetic structures that magnetically connect the panel to both of the first architectural surface or the second architectural surface is allowed to move in response to movement of the panel. In more specific embodiments, the movement of the magnetic structure is a tilting movement.

A first constituent member configured such that a plurality of panels overlaps and a second constituent member configured such that a plurality of panels overlaps are included, in which a first link member that can be expanded and contracted is connected to the first constituent member, a second link member that can be expanded and contracted is connected to the second constituent member, each of the constituent members can be expanded and contracted by expansion and contraction of each of the link members, the first constituent member and the second constituent member can relatively be rotated around rotation axes and also can removably be connected, the first link member and the second link member are connected to both ends of connecting link arm members via a free joint respectively, and the first link member and the second link member can be separated from each other.

A first constituent member configured such that a plurality of panels overlaps and a second constituent member configured such that a plurality of panels overlaps are included, in which a first link member that can be expanded and contracted is connected to the first constituent member, a second link member that can be expanded and contracted is connected to the second constituent member, each of the constituent members can be expanded and contracted by expansion and contraction of each of the link members, the first constituent member and the second constituent member can relatively be rotated around rotation axes and also can removably be connected, the first link member and the second link member are connected to both ends of connecting link arm members via a free joint respectively, and the first link member and the second link member can be separated from each other.

A system which creates a durable seal between adjacent horizontal panels, including those that may be curved or subject to temperature expansion and contraction or mechanical shear. The durable seal system incorporates a plurality of ribs, a flexible member between the cover plate and the ribs and may incorporate a load transfer plate to provide support to the rib from below, and/or cores of differing compressibilities.

An expansion joint system is provided which uses magnets to hold a cover plate to a base frame of a substrate. The expansion joint system allows the magnets to slide over the base frame/cover plate during normal movements of the substrates without applying tension to the cover plate. In a seismic or other disruptive event, the cover plate is tethered to the building via a bungee.

An expansion joint seal proving a flexible barrier therethrough in a concave shape with a first body of compressible foam on one side and a second body of compressible foam on the other side, where the barrier extends laterally from the first body and second body and may be used to protect the sides of the expansion joint seal or may be used to provide contact on the surface of each adjacent substrate.

Tiles 21 and 22 are laid up with other tiles in the usual way at and along the joint 18, the joint 18 comprises a female strip 23 and a male strip 24 each of which have fastening flanges 25 and 26 and respective 90? walls 27 and 28. A slot or rebate in the female section 29 holds an expandable seal, typically in this case a hydrophilic seal. The female part and the male parts are assembled for relative movement so that a small gap perhaps 2 mm at 31 may be accommodated while the the upper plate section 23 still provides a contiguous coplanar link between the parts.

Provided is a header composition for an expansion joint system. The header composition includes a hybrid polyurea-polyurethane composition and is designed to have a short cure time at low temperatures. Also provided are an expansion joint system incorporating the hybrid polyurea-polyurethane header composition and a method for applying the header composition into the expansion joint system.

Tiles 21 and 22 are laid up with other tiles in the usual way at and along the joint 18, the joint 18 comprises a female strip 23 and a male strip 24 each of which have fastening flanges 25 and 26 and respective 90? walls 27 and 28. A slot or rebate in the female section 29 holds an expandable seal, typically in this case a hydrophilic seal. The female part and the male parts are assembled for relative movement so that a small gap perhaps 2 mm at 31 may be accommodated while the upper plate section 23 still provides a contiguous coplanar link between the parts.

An expansion joint system for bridging an expansion joint gap between two spaced-apart, underlying building or roadway structures. The expansion joint system includes a cover plate, at least one swing arm, sliding bearings engaged with the swing arms, and fasteners for engaging the swing arms to the cover plate. The swing arms include a receiving well configured for receiving a mechanical fastener to fasten the swing arms to the cover plate. The expansion joint system permits movement in response to a seismic or thermal event that causes expansion or contraction of the gap between structural members while maintaining coverage of the gap, and following a seismic or thermal event, the maintains a substantially-centered position of the cover plate.