Abstract: An expansion joint cover assembly includes base frame members secured to building sections having an expansion joint gap defined therebetween. Cover frame members are secured to the base frame members in such a manner as to define cavities therebetween, and opposite side edge portions of a covering connecting plate are slidably disposed within the cavities so as to cover the expansion joint gap defined between the building sections under expansion and contraction conditions. The cover frame members further include channel sections for housing edge portions of interior design material panels, for example, ceiling panels, wall panels, and the like.

Abstract: The expansion joint includes a pair of support frames fixed upon steps formed opposite to each other upon both building edges defining a gap therebetween, a connecting cover plate which can slide so as to span both a support frame and a surface base plate so as to extend across the gap defined between the buildings, and a surface dressing structure which is identical to a building surface dressing structure and which is laid upon both surface base plates so as to be visually continuous with the building edge.

Abstract: An expansion joint comprises a pair of support bases having a rail type shape lack of which is continuous in the longitudinal direction and is fixed to each edge of both members of a building defining an expansion joint gap, a plurality of connecting members for connecting both support bases together so that the gap between the bases is expansible or contractible, and a cover plate of a proper length connected to the connecting members so as to span the expansion joint gap while being disposed atop the upper ends of both support bases which are slideable with respect to the cover plate under expansion and contraction conditions and which are formed with concave portions for accommodating a finish material on the internal surface side, whereby a surface material substantially identical with a surface material of the members of the building adjacent the expansion joint may be disposed within the concave portion for accommodating the finish material of the cover plate so as to integrate its appearance with respe