Array Bridge Expansion Joints

Abstract

Disclosed is an array type bridge expansion joint. Functions of bearing and pavement smoothing of the bridge seamless type expansion joint are assigned to equal-height blocks, and functions of expansion deformation and water stopping are assigned to a padding block. The equal-height blocks are arranged in the padding block in an array mode. The heights of the tops of the equal-height blocks of the expansion joint are the same with that of pavement. Bearing blocks, made of rigid materials and bearing the high pressure of wheels, of the equal-height blocks not only can guarantee the bearing capacity of the expansion joint but also can guarantee the smoothness of the pavement. Padding is connected on the peripheries of the equal-height blocks and forms the whole padding block, and the padding block is made of plastic or elastic materials and plays a role in bonding and filling of the expansion joint and connection of the bearing blocks. The padding does not take the effect of pressure bearing anymore, so that the selectivity of the formula of the padding is wide, and the padding only bears deformation of the expansion joint and stops water. The equal-height blocks can improve the smoothness of the expansion joints of the same types. The padding does not bear the pressure so that the expansion amount of the expansion joint can be increased.

Description

technical field [0001] The present invention relates to bridge expansion joint sealing technology, especially "array type bridge expansion joint", which mainly uses contour blocks in bridge seamless expansion joint sealing technology. Background technique [0002] Bridge expansion joints are a technical problem recognized by the world's highway industry. Expansion joints have a great impact on the smoothness of the road and directly affect the comfort of driving. Chinese patent application number: 201610037260.5, "Bridge Expansion Joint Device", the side of the left comb-tooth plate support beam facing the right comb-tooth plate support beam is fixed with a waterstop left seat, and the right comb-tooth plate support beam faces the left comb-tooth plate One side of the support beam is fixed with a right waterstop seat at a position corresponding to the left seat of the waterstop, and the waterstop is embedded between the left seat of the waterstop and the right seat of the wa...

AI Technical Summary

Problems solved by technology

In addition, the greater the tensile force on the expansion joint, the thinner the rubber layer, and the weight of the wheel, the height of the composite member will be lower than the height of the road surface, which will affect the stability of driving

The rubber layer plays the role of expansion and contraction during stretching, and also bears the role of pressure, which makes it difficult for the performance of the rubber layer to take into account both functions.

Images