Dowel bar positioning support of cement concrete road surface based on composite

Abstract

The invention discloses a dowel positioning bracket based on composite materials for cement concrete pavement, which comprises: two sets of dowel brackets arranged in parallel, each group of brackets includes two positioning main rods arranged in parallel, A number of door-shaped support legs are evenly connected between the two positioning main rods in parallel directions. The root of the support legs is provided with a circular hook claw, and the top cross bar of the support leg is centered with a detachable composite ring. The hook claw, the composite circular hook claw includes the lower half hook claw for connecting the support legs and the upper half hook claw for connecting the dowel bar. The invention has the advantages of low density, simple manufacturing process, detachable, convenient transportation, light weight, can be installed and formed on site, reduces construction difficulty, and speeds up construction progress. At the same time, it has good corrosion resistance and high temperature resistance, low heat and humidity shrinkage stress, and the unique structure further strengthens the stability of the dowel bar during use, effectively reducing the problem of misalignment when the dowel bar is installed.

Description

Technical field [0001] The patent belongs to the field of road engineering, and particularly relates to a composite material-based force transmission rod positioning bracket for cement concrete pavement. Background technique [0002] Roads are an important infrastructure for national economic and social development. With the rapid development of the national economy, the socio-economic level and transportation needs determine the development process of road transportation. By the end of 2013, the total mileage of cement concrete highways in my country has reached 197,500 kilometers. . The scale of road construction has also been expanding, and the traffic volume has soared. At present, the scale of the road network has jumped to the first place in the world. [0003] A large number of cement pavement road condition surveys have found that the damage of the existing cement pavement is mainly caused by dislocation. These road damages seriously affect the driving quality of vehicles ...

AI Technical Summary

Problems solved by technology

Compared with the traditional steel dowel bracket, it is easy to corrode under alkaline conditions, and the site welding installation is easy to produce positioning deviation, which leads to a substantial increase in later repair and maintenance costs

Images