L-shaped steel pipe-steel framework recycled concrete combined pillar

A technology of recycled concrete and composite columns, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems of limited use range, poor strength, poor shrinkage performance, durability, and high water absorption, so as to broaden the application and development space, improve Effects of load-carrying capacity, ductility, and seismic performance improvement

Inactive Publication Date: 2014-09-24
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, due to the inherent damage of recycled aggregates and the high water absorption rate caused by the adsorption of a layer of old mortar on its surface, the strength, shrinkage and durability of recycled concrete are poorer than ordinary concrete. The earth limits its scope of use

Method used

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  • L-shaped steel pipe-steel framework recycled concrete combined pillar

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Embodiment Construction

[0019] The present invention can be realized in general concrete member factory with reference to accompanying drawing and description. The steel frame is welded by steel plate, the recycled concrete is located inside the steel pipe, and the concrete wraps the steel frame. The shaft, inner steel frame and steel pipe are fixed together with the bottom plate by welding or bolting. The center of the L-shaped column refers to the center of the rectangular part on the limb, the steel frame is arranged in a T shape, and the bottom ends of the two steel frame vertical columns are fixed together.

[0020] The specific process is as follows:

[0021] 1. Weld the steel plates into steel frames according to the regulations;

[0022] 2. Fix the steel frame and steel pipe to the bottom plate by welding or bolting, and keep it vertical or at a certain angle;

[0023] 3. Fully mix recycled concrete fragments of a certain proportion and size with cement to form recycled concrete;

[0024]...

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Abstract

The invention relates to a concrete component, in particular to an L-shaped combined pillar applied to civil engineering. The L-shaped steel pipe-steel framework recycled concrete combined pillar is composed of a steel framework, a steel pipe and recycled concrete, wherein the steel framework is located in the center of an L-shaped pillar and can improve the stress performance of branch parts of the L-shaped pillar; the L-shaped steel pipe is located outside, concrete in the steel pipe is in a three-directional stressed state, deformation of the concrete is restrained, and application of brittle high-strength concrete to the L-shaped pillar is facilitated; the recycled concrete can effectively improve the corrosion resistance of the pillar, resources are saved, and the environment is protected. The L-shaped steel pipe-steel framework recycled concrete combined pillar is a main component of a framework structure in a high-rise and large-span building, and has the advantages of being high in bearing force, high in rigidity, light in weight, good in plasticity and tenacity, good in impact resistance and fatigue resistance, good in vibration resistance and good in durability, saving energy, protecting the environment and the like.

Description

technical field [0001] The invention relates to a concrete member, in particular to an L-shaped concrete column used in civil engineering, which is a novel L-shaped section composite column. Background technique [0002] In the current society, with the development of super high-rise and long-span buildings, ordinary reinforced concrete columns are no longer suitable for heavy-duty columns under large loads. In this case, there are circular steel pipe-steel reinforced concrete composite columns and square steel pipe-steel reinforced concrete composite columns. However, due to people's higher and higher requirements for the building environment, especially the increasing emphasis on the structure of the house and the layout of the living room, the section size of the ordinary steel pipe-steel reinforced concrete heavy-duty column is often larger than the thickness of the wall, which affects the indoor space. It is difficult to meet the requirements of architectural beauty. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
Inventor 朱绍杰吕丛丛杨旭
Owner SHENYANG JIANZHU UNIVERSITY
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