Structure method for expansion joint of cement concrete pavement

Abstract

The invention provides a structure method for expansion joint of a cement concrete pavement, belonging to the technical field of building construction. The method comprises the following operation steps: firstly, conducting meteorological survey and geological investigation for a construction site, and determining temperature load size and roadbed geological conditions; then determining construction parameters of ground anchors, conducting construction of the ground anchors after finishing pavement bed course; determining horizontal anchor fixed length c of the end of a reinforced steel hanger and horizontal width b of the lower end of the steel hanger around the ground anchors in accordance with the design specification of a reinforced concrete structure, and arranging a reinforced steel hanger mesh at the position of row-like ground anchors and connecting the steel hanger mesh with distributed reinforcements in the cement concrete road surface in a welding mode; and finally installing anchor seats of the ground anchors again, connecting the anchor seats with the road surface reinforcing mesh in the welding mode, and pouring the road surface in a construction advance direction. The invention keeps integrity of the road surface, simultaneously, provides a certain vertical restrain for road slabs so as to avoid warpage of the road surface.

Description

technical field [0001] The invention relates to a method in the technical field of building construction, in particular to a method for constructing cement concrete pavement expansion joints. Background technique [0002] Under the effect of concrete shrinkage effect, temperature gradient day and night temperature difference and seasonal temperature difference, cement concrete pavement will produce warping and stretching deformation, which will affect the normal use and safety of the road. In order to avoid this situation, it is usually chosen to set various types of transverse joints along the direction of the road. According to different functions, it can generally be divided into contraction joints and expansion joints. Among them, expansion joints are real joints with larger width and larger spacing. Expansion joints are used to release the expansion deformation of concrete pavement due to temperature changes. However, in actual use, because it destroys the integrity of...

AI Technical Summary

Problems solved by technology

There is no method to avoid the setting of expansion joints, and it is impossible to solve the problem of destroying the integrity of the pavement and the stress concentration at the joints caused by setting the joints at the same time

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