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A prefabricated assembly type seismic toughness reinforced concrete frame structure and its construction method

A technology for reinforced concrete and reinforced concrete columns, which is applied in the field of prefabricated seismically ductile reinforced concrete frame structures and construction, can solve problems such as collapse, cracks in concrete components, and large plastic deformation, and achieves convenient replacement and maintenance, small residual deformation, and residual Small displacement effect

Active Publication Date: 2021-06-04
HAINAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when strong earthquakes occur in prefabricated reinforced concrete structures, the ductility of beam-column self-resetting joints tends to be small and the plastic deformation is large, resulting in cracks, breakage or even collapse of concrete components, which makes post-earthquake repair work difficult or even dangerous. can not fix

Method used

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  • A prefabricated assembly type seismic toughness reinforced concrete frame structure and its construction method

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Experimental program
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Effect test

Embodiment 1

[0037] See attached figure 1 , the embodiment of the present invention discloses a prefabricated assembled anti-seismic ductile reinforced concrete frame structure, which is constructed on a concrete foundation 3, including: reinforced concrete columns 2, anchor rods 16, reinforced concrete beams 1, tie rods 7 and dampers 12;

[0038] The reinforced concrete column 2 is vertically arranged, and the bottom end is inserted into the groove formed on the top surface of the concrete foundation 3, and the space between the reinforced concrete column 2 and the groove is filled with elastic and stretchable material 14; the reinforced concrete column 2 is close to the end of the concrete foundation 3 A hole 4 is opened;

[0039] The anchor rod 16 axially passes through the interior of the reinforced concrete column 2, the top end passes through the hole 4 of the reinforced concrete column 2 and is fixed after being set with a disc spring group 5, and the other end passes through the bo...

Embodiment 2

[0055] The difference between this embodiment and Embodiment 1 is that the position of the hole 4 at the end of the column foot of the reinforced concrete column 2 is different. The position of the hole 4 is still the front and rear sides of the end of the beam; the end of the reinforced concrete column 2 can be replaced by an externally installed stirrup in order to ensure that the reinforced concrete column is not damaged by bending. Steel pipe protection. Adaptive selection can be made according to specific conditions during construction, with the purpose of making the construction method more convenient.

Embodiment 3

[0057] The embodiment of the present invention discloses a method for constructing an earthquake-resistant ductile reinforced concrete column and a steel concrete beam frame, including the following steps:

[0058] S1. Reinforced concrete beam 1 and reinforced concrete column 2 are provided with reserved holes 6 and 4 during prefabrication;

[0059] S2. Pre-embed and fix one end of the anchor rod 16 in the concrete foundation 3, design and reserve the size of the groove, and then pour the concrete foundation 3 to form. After the concrete foundation 3 reaches the final setting stage, fill the groove around the groove successively. sexual material 14;

[0060] S3. Put the reinforced concrete column 2 through the protruding end of the pre-embedded anchor rod 16 and put it into the reserved groove of the concrete foundation 3, install and fix the disc spring group 5 on the anchor rod 16 extending into the hole 4 top;

[0061] S4. Insert the tie rod 7 at the beam-column node into...

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Abstract

The invention discloses a prefabricated assembled anti-seismic ductile reinforced concrete frame structure and a construction method. The frame structure is constructed on a concrete foundation, including reinforced concrete columns, anchor rods, reinforced concrete beams, tie rods and dampers; the invention is based on reinforced concrete Holes are opened on the columns and beams, and the disc spring group is installed in the hole. The disc spring group and the beam and column nodes are fixedly connected by tie rods, and the disc spring group and the column and foundation nodes are fixedly connected by anchor rods. 1. Encrypted stirrups or spiral stirrups or outsourcing steel plates are provided at the end of the column, dampers are arranged on the underside of the beam end, and elastic and scalable materials are filled around the gap between the reinforced concrete column and the reserved groove of the concrete foundation. The ductility of the structure is large, the residual displacement after the earthquake is small, and the main structure basically maintains elasticity after the earthquake, so it can be widely used in building structures.

Description

technical field [0001] The invention relates to the technical field of anti-seismic structure systems, and more specifically relates to a prefabricated assembly type anti-seismic ductile reinforced concrete frame structure and a construction method. Background technique [0002] In recent years, prefabricated structures, as an energy-saving, environmentally friendly and convenient construction method, have attracted more and more attention from the industry. The prefabricated structure has the advantages of high efficiency, high degree of industrialization, high degree of standardization, high building anti-seismic performance, and high energy-saving performance. However, when strong earthquakes occur in prefabricated reinforced concrete structures, the ductility of beam-column self-resetting joints tends to be small and the plastic deformation is large, resulting in cracks, breakage or even collapse of concrete components, which makes post-earthquake repair work difficult o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04H9/02E04B1/98
CPCE04B1/98E04H9/02E04H9/021
Inventor 陈云禹文华
Owner HAINAN UNIV
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