Recycled concrete Z-shaped pier stud

A recycled concrete and concrete technology, applied in bridge materials, buildings, bridge construction, etc., can solve the problems of poor shrinkage performance and durability, high water absorption rate, etc.

Active Publication Date: 2015-02-04
GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 durabili...

Method used

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  • Recycled concrete Z-shaped pier stud

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Embodiment Construction

[0016] Such as figure 1 As shown, the recycled concrete Z-shaped pier column of the present invention includes a Z-shaped cross-section pier body, and the Z-shaped cross-section pier body is composed of two steel plates 3 and two circular steel pipes 1 with U-shaped steel channels 2 welded to form, two parallel The steel plate is used as the middle section of the Z-shaped pier body, and two steel pipes are welded at both ends of the middle section respectively. The two circular steel pipes each have two U-shaped steel grooves as the upper and lower limbs parallel to the Z-shaped pier body. The upper and lower limbs are arranged in the In the longitudinal direction of the bridge: ordinary aggregate concrete 5 is poured in the U-shaped steel channel and between two parallel steel plates, and recycled aggregate concrete 4 is poured in the circular steel pipe.

[0017] Production process

[0018] First, the outsourcing steel plate is welded to form a U-shaped steel channel, then ...

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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 ...

Claims

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Application Information

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IPC IPC(8): E01D19/02
CPCE01D19/02E01D2101/268
Inventor 应敬伟秦煜杨涛马娴周亭林
Owner GUANGXI TRANSPORTATION SCI & TECH GRP CO LTD
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