High-performance hollow floor plate and column joint

A technology of slab-column joints and hollow floors, which is applied to floors, building components, buildings, etc., can solve the problems of weakening the punching shear performance and bearing capacity of slab-column joints, and achieve the effect of improving ductility and seismic performance.

Inactive Publication Date: 2019-02-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current research has shown that the barrel core weakens the punching resistance of the slab-column joints, and also has a great impact on the bearing capacity of the system

Method used

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  • High-performance hollow floor plate and column joint
  • High-performance hollow floor plate and column joint
  • High-performance hollow floor plate and column joint

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0025] The high-performance hollow floor slab column node of the present invention includes concrete column 1, column longitudinal reinforcement and stirrup 2, solid ECC part 3, cylinder core 4, cylinder core area concrete 5, and slab longitudinal reinforcement 6.

[0026] The solid ECC part 3 of the present invention is only used for local floor slabs around the column, and other parts and columns are made of ordinary concrete, and the thickness of the slab is h Should not be less than 180mm. The width of the solid ECC part 3 should not be less than (0.5 h 0 +100) mm, h 0 is the effective height of the board.

[0027] The core 4 of the present invention adopts a...

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Abstract

The invention discloses a high-performance hollow floor plate and column joint. The high-performance hollow floor plate and column joint is integrally formed by a concrete column (1), column longitudinal steel bars and stirrups (2), a solid ECC part (3), barrel cores (4), barrel core area concrete (5) and plate longitudinal steel bars (6). The width of the solid ECC part (3) is unsuitable for being less than (0.5h0+100)mm outside a punch failure cone body line. The diameter of the barrel cores (4) is selected according to the thickness of a plate but not less than 100mm. The ratio of the rib width between the barrel cores to the outer diameter of the barrel cores is not less than 0.2, and the size of the rib width is not less than 50mm, and meshes of the plate longitudinal steel bars (6) adopt spot welded steel meshes. The high-performance hollow floor plate and column joint is called a ECC / RC hollow floor plate and column joint and is applied in a frame plate and column combined structure, compared with a general plate and column joint, the self-weight of a floor is lighter, the use of ECC can significantly improve the punching resistance bearing capacity of joints, the reinforcement ratio of hidden beams in a plate and column structure is reduced, and construction is facilitated.

Description

technical field [0001] The invention belongs to the technical field of structural engineering, and in particular relates to a high-performance hollow floor slab-column joint. Background technique [0002] The concept of "low carbon" comes from life. With the increase of carbon dioxide and the global warming, the concept of low-carbon economy has emerged as the times require, and new concepts such as low-carbon society, low-carbon city, and low-carbon building have come like a wave. On the road of developing low-carbon economy, "energy saving" and "low carbon" of buildings will become extremely important topics. [0003] The reinforced concrete slab-column structure has been accepted by people due to its advantages of large column network, large bay, and high space utilization rate, and has been widely used in engineering practice. Due to the characteristics of the slab-column structure itself, the weight of the floor can reach 80% of the total weight of the building, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B5/43
CPCE04B5/43
Inventor 党隆基梁书亭庞瑞朱筱俊杨建
Owner SOUTHEAST UNIV
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