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Non-damage stiffness-adjustable prefabricated frame column foot connection structure and construction method thereof

A technology for connecting structures and frame columns, which is applied in the directions of building components, building structures, and earthquake resistance. It can solve the problems of prefabricated columns that are easily damaged, irreversible, and cumbersome cast-in-place connection construction, and achieve high cost performance, repair-free construction, and structural integrity. simple effect

Inactive Publication Date: 2018-09-04
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a non-damage adjustable rigidity prefabricated frame column base connection structure and its construction method, to solve the technical problems that the prefabricated column column base joints are cumbersome in construction and the prefabricated columns are easily damaged and cannot be restored after the earthquake

Method used

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  • Non-damage stiffness-adjustable prefabricated frame column foot connection structure and construction method thereof
  • Non-damage stiffness-adjustable prefabricated frame column foot connection structure and construction method thereof
  • Non-damage stiffness-adjustable prefabricated frame column foot connection structure and construction method thereof

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Embodiment Construction

[0038] Examples see Figure 1-5 As shown, a prefabricated frame column foot connection structure with adjustable stiffness without damage includes a foundation 11 and a prefabricated concrete column 1 connected to the foundation.

[0039] The bottom end surface of the precast concrete column is pre-embedded with a horizontal end steel plate 2, the center of the end steel plate 2 coincides with the center of the cross section of the precast concrete column, and the lower surface of the end steel plate 2 is provided with a downward convex anti- The shear key 5, the outer surface of the end steel plate 2 is flush with the outer surface of the prefabricated concrete column. The shear key 5 and the end steel plate 2 are integrally machined and formed, both of which are made of steel. The shear key 5 is arranged symmetrically on the center of the end steel plate 2, and is a bump, a convex line or a combination of the two located in the center of the bottom steel sealing plate.

[...

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Abstract

The invention discloses a non-damage stiffness-adjustable prefabricated frame column foot connection structure and a construction method thereof. The non-damage stiffness-adjustable prefabricated frame column foot connection structure comprises a foundation and a prefabricated concrete column; an end steel plate is pre-embedded in the prefabricated concrete column; a shear key is arranged on the lower surface of the end steel plate; a connecting device is arranged above the end steel plate, and positioning bolts are arranged on the connecting device; a bearing steel plate is pre-embedded in the connecting position of the foundation and the prefabricated concrete column; and a shear key groove is formed in the upper surface of the bearing steel plate, and anti-bending springs are arranged between the end steel plate and the bearing steel plate. The shortcomings of a current prefabricated assembly structure system are overcome, a joint between the column and the foundation adopts the ideas of bending and shearing separation, strong shearing and weak bending, and bending shearing elasticity, the structure is simple, processing is convenient, a pre-embedded piece capable of being accurately positioned is prefabricated, on-site mounting is easy and convenient, the mounting efficiency is improved, the economic feasibility is achieved, and the performance cost ratio is high.

Description

technical field [0001] The invention relates to a frame structure column bottom connection structure, in particular to a prefabricated frame column foot connection with adjustable stiffness without damage and a construction method thereof. Background technique [0002] Due to the promotion of economic development and technological progress, as well as the huge housing demand and labor shortage in the process of urbanization, the foundation has been laid for the industrialization of housing and the application of prefabricated components. The prefabricated assembly structure is a concrete structure made of prefabricated components as the main component, assembled, connected, and partially cast in place. It has high construction efficiency, low cost, and conforms to the green construction principle of "four sections and one environmental protection". The direction of development in the field of engineering. According to 6.2.2-6.2.3 of the Code for Seismic Design of Buildings ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/21E04B1/98E04H9/02
CPCE04B1/215E04H9/021E04H9/025
Inventor 张翠强史鹏飞李六连田振王鹏孙建运
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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