E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/18
E01C 11/02 (2006.01) E01D 19/06 (2006.01)
Patent
CA 1071916
ABSTRACT OF THE DISCLOSURE A large motion expansion joint having a plurality of load-carrying modules which are positioned in parallel relationship to each other and aligned in a direction trans- verse to the direction of the roadway. The load-carrying modules generally span the expansion gap between adjacent structural members to support vehicular traffic thereon and include a first end module mounted to an edge of one of the structural members, a second end module mounted to an edge of an adjacent structural member and at least one intermediate module spaced between the first and second end modules. The intermediate modules carry beneath its upper surface a plur- ality of spaced sleeve-like beam guides which are aligned with a plurality of spaced elongated sleeve-like support beam hous- ings fixedly secured to the second end module. A plurality of support beams are fixed to the first end module and slide into the beam guides and housings generally in the direction of the roadway so as to support the load-carrying modules. During -1- expansion and contraction of the structural members, the load- carrying modules slide upon the support beams and move toward and away from each other as the gap is either narrowed or widened. The spacing between modules is proportionally main- tained during expansion and contraction by means of a linkage system which includes at least two sets of linkages intercon- necting each adjacent pair of load-carrying modules with the linkages arranged generally in a zig-zag configuration gen- erally along the direction of the roadway. Some of the linkages have bifurcated forked ends and some of the linkages have tongue- shaped blade-like ends with the bifurcated forked ends of the linkages on each module pivotally connected to the tongue- shaped blade-like end of the linkages on adjoining modules Pads are mounted upon the load-carrying modules to provide a roadway surface across the gap. The space between each module is covered and protected by resiliently yieldable sealing mem- branes secured at the top surfaces of the load-carrying modules and against the underside of the pads with the sealing mem- branes overlying the linkages to prevent water, dirt and other debris from passing downwardly between the modules. -2-
295860
Brady John F.
Pyle Lawrence F.
LandOfFree
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