Recycled concrete Z-shaped pier stud

Abstract

The invention discloses a recycled concrete Z-shaped pier stud, which is formed by welding two steel plates and two round steel pipes respectively with a U-shaped steel groove; ordinary aggregate concrete is cast in the U-shaped steel grooves and between the two parallel steel plates; recycled aggregate concrete is cast in the round steel pipes. The recycled concrete Z-shaped pier stud disclosed by the invention is capable of overcoming the problem that the use of recycled concrete is limited due to the fact that strength and endurance quality are poor and the like, is in favor of popularization and application and engineering garbage recycling of the recycled concrete in bridge engineering, and can be applied to skew bridges in regions with strong seismic intensity and regions that building materials are difficult to transport; for bridges damaged by earthquakes, the damaged bridges can be immediately crushed into the recycled concrete, and natural aggregate is replaced with part of the recycled concrete to repair or rebuild the bridges, so that the transport cost is reduced, and post-disaster reconstruction is advantageously recovered.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering with combined steel and concrete structures, and relates to bridge pier columns, in particular to a recycled concrete Z-shaped pier column. Background technique [0002] Today, my country is the largest construction market in the world. The huge demand for concrete has led to a trend that the supply of sand and gravel is in short supply. The high-quality natural aggregates in many areas of our country have been exhausted, and a large number of quarrying activities have caused serious damage to the ecological environment. irreversible damage. At the same time, the discharge of construction waste is increasing day by day, and the reuse of waste concrete, that is, processing into recycled aggregates for the production of recycled concrete, is considered to be the most effective way to solve the problem of waste concrete. On the one hand, the application of recycled concrete technology can ...

AI Technical Summary

Problems solved by technology

[0003] However, due to the inherent damage of recycled aggregate and the adsorption of a layer of old mortar on its surface, resulting in high water absorption, the strength, shrinkage and durability of recycled concrete are inferior to those of ordinary concrete, which restricts the regeneration of bone. One of the important reasons for the popularization and application of raw material concrete

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