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Assembled joint node for column base and construction method

A connection node and assembly technology, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of insufficient deformation capacity and mechanical properties of the column foot nodes of assembly structures, achieve high-efficiency construction anti-seismic performance, reduce maximum strain, and reduce curvature Yield risk effect

Pending Publication Date: 2017-10-27
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a prefabricated column base connection node and its construction method, to solve the technical problems of deficiencies in the deformation capacity and mechanical properties of the prefabricated structure column base joints

Method used

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  • Assembled joint node for column base and construction method
  • Assembled joint node for column base and construction method
  • Assembled joint node for column base and construction method

Examples

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Embodiment Construction

[0050] Examples see Figure 1-2 As shown, a prefabricated column-foot connection node includes an upper prefabricated reinforced concrete column 1 and a lower reinforced concrete foundation 2 that are spliced ​​vertically, and the prefabricated reinforced concrete column 1 is pre-embedded. Column anchoring longitudinal bars 3 and grouting sleeves 4, the reinforced concrete foundation 2 is pre-embedded with foundation anchoring bars 6, and the foundation anchoring bars 6 and column anchoring longitudinal bars 3 are filled with the grouting sleeve 4 through the grouting material 7 connection, the splicing joint between the reinforced concrete foundation 2 and the prefabricated reinforced concrete column 1 is also filled with the filling material 7. Grouting sleeve 4 adopts common grouting sleeve.

[0051] The joint filling material is a high-strength rapid-hardening cement-based grout with a compressive strength of more than 45 MPa or steel fiber, carbon fiber or other fiber ra...

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Abstract

Provided is an assembled joint node for a column base and a construction method thereof. The assembled joint node for the column base can be used in a prefabricated reinforced concrete column, a reinforced concrete foundation, a column anchorage longitudinal rib, a grouting sleeve and a foundation anchor steel bar, wherein the foundation anchor steel bar is connected with the column anchorage longitudinal rib through a crack pouring material, and the grouting sleeve is filled full with the crack pouring material; a spliced seam of the reinforced concrete foundation and the prefabricated reinforced concrete column is also filled with the crack pouring material, and the foundation anchor steel bar comprises a vertical part and a horizontal part; the vertical part comprises an upper anchorage section, which extends beyond the upper surface of the reinforced concrete foundation, a middle no-bonding section, which is embedded in the reinforced concrete foundation, and a lower anchorage section; the outside of the middle no-bonding section is provided with an isolation suite which is used for isolating the the middle no-bonding section and preventing the middle no-bonding section from being bonded with concrete; the top surface of the isolation suite is aligned with the upper surface of the reinforced concrete foundation. According to the assembled joint node for the column base and the construction method of the assembled joint node, the deformation capability and the mechanical property of the node at the column base in an assembled structure, the construction is efficient, and the seismic performance is good.

Description

technical field [0001] The invention belongs to the field of prefabricated structure buildings, in particular to a column base node of a prefabricated concrete frame structure and a frame shear wall structure and a construction method thereof. Background technique [0002] At present, in the prefabricated frame structures commonly used at home and abroad, the column foot nodes are mainly connected by grouting sleeves. [0003] The column foot connected by the grouting sleeve bears a large force, and the longitudinal reinforcement in the column bears the largest force at the joint between the column foot and the foundation, and the remaining longitudinal reinforcement is relatively small due to the concrete wrapping, which leads to concentrated deformation of the longitudinal reinforcement at the seams. Under the rare earthquake load, the longitudinal reinforcement at the joint is easy to break due to excessive deformation, resulting in structural damage of the prefabricated...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E04C5/16E04B1/98E04H9/02
CPCE02D27/42E04C5/165E04H9/021E04H9/025E02D2250/0023E02D2600/30E04C5/03E04B2001/4192E04B1/41E01D2101/26E04B2/56E04C3/34
Inventor 郭海山齐虎刘康李黎明范昕田力达耿娇王冬雁
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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