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Recycled concrete superposed column and its implementing method

A technology of recycled concrete and concrete columns, which is applied in the direction of columns, pier columns, pillars, etc., can solve the problems of multiple recycling processes and high costs, and achieve the effects of convenient construction, improved seismic performance, and improved durability

Inactive Publication Date: 2009-07-22
JIANGSU NANTONG NO 2 CONSTR ENG GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a recycled concrete laminated column and its realization method for the defects of many waste concrete recycling processes and high cost. It has a simple structure, is easy to construct, and can also utilize waste, which greatly saves costs.

Method used

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  • Recycled concrete superposed column and its implementing method
  • Recycled concrete superposed column and its implementing method
  • Recycled concrete superposed column and its implementing method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0029] When the core column 1 adopts the abandoned concrete column: the surface treatment of the abandoned concrete column can be carried out in the factory or on-site, remove the surface plaster, and polish it to make the surface rough, and then lift it; after the core column 1 is centered, then bind the periphery The reinforcement of the concrete column 2 includes the longitudinal reinforcement 3 and the stirrup 4 of the column. The reinforcement in the beam and column communicates with each other. Finally, the formwork is supported and the peripheral concrete is poured. The geometric alignment of the peripheral concrete column 2 and the core column 1 should be ensured. If multiple abandoned concrete short columns are used for splicing, the steel bars in the short columns should be chiseled out, connected by butt welding or casing, and then or...

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Abstract

The invention relates to a recycled concrete laminated column and an implementation method thereof. The laminated column adopts a new section shape and the structure of the laminated column comprises an inner prefabricated recycled concrete core column or an abandoned concrete column dismantled from the building (including a round column and a square column), wherein, the surface of the recycled concrete core column is kept naturally crude instead of polishing. The interior of the recycled concrete core column is internally provided with quantitative reinforcing bars for the purpose of guaranteeing the recycled concrete core column from being damaged during the processes of transportation and hoisting. The surface of the abandoned concrete column is subjected to surface treatment, the plastering is removed from the surface and the surface of the abandoned concrete column is polished to be crude. The recycled concrete laminated column further includes an external cast-in-place common concrete peripheral column, wherein, the common concrete is internally provided with reinforcing bars. The invention improves the endurance of the recycled concrete and also the stressing of the entire recycled concrete column, and the like, has good market prospect, and can accelerate the popularization of the recycled concrete, and the popularization and the application of the abandoned concrete.

Description

technical field [0001] The invention belongs to the field of construction engineering and relates to a recycled concrete composite column structure. Background technique [0002] Under the current situation, there are 13.6 million tons of waste concrete in the construction waste removed from old buildings every year in the country, plus the waste concrete produced by the 40 million tons of construction waste generated by new houses every year. The environmental problems caused by this are also very prominent. In order to minimize the exploitation of natural resources, it is necessary to maximize the recycling of construction waste. Therefore, the research and application promotion of construction waste treatment and application technology is imperative. However, at present, due to the inherent damage of recycled aggregate 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34
Inventor 肖建庄董雪平朱彬荣宋声彬
Owner JIANGSU NANTONG NO 2 CONSTR ENG GRP
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