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Replaceable column base for recoverable functional structure

A technology for restoring function and column foot, applied in the field of replaceable column foot, can solve the problems of bottom steel column damage, column foot damage, loss of structural function, etc., to improve structural ductility, facilitate disassembly and installation, and facilitate structural construction and later stages. maintenance effect

Active Publication Date: 2020-04-28
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the steel frame structure, the column foot is usually one of the most unfavorable parts under the earthquake; in the current steel structure design, when the strength of the column foot is small, the column foot is easy to be damaged under the earthquake; when the column foot When the strength is high, the bottom steel column is easy to be damaged under the action of earthquake
Since the column foot and the bottom steel column of the traditional steel frame cannot be repaired or replaced in a short period of time after the earthquake, the damage of the column foot or the bottom steel column often leads to partial or complete loss of structural functions

Method used

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  • Replaceable column base for recoverable functional structure
  • Replaceable column base for recoverable functional structure
  • Replaceable column base for recoverable functional structure

Examples

Experimental program
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Effect test

Embodiment 1

[0039] In a broad embodiment of the invention, as Figure 1-4 As shown, a replaceable column foot used in a recoverable function structure mainly includes a bottom steel column and a foundation 21, and the bottom steel column includes a flange 11, a web 12, a bottom plate 13, a shoe beam 14, and an anchor bolt Support rib 15, anchor bolt supporting plate 16; described flange 11, web 12, shoe beam 14 are all connected with base plate 13 by welding; described anchor bolt supporting plate 16 is welded with shoe beam 14, and anchor bolt supporting plate 16 An anchor bolt passage hole is provided on the top, and the anchor bolt supporting rib 15 is used to support and reinforce the anchor bolt supporting plate 16 .

[0040] The bottom plate 13 of the bottom steel column is placed on the top surface of the foundation 21 . The threaded sleeve 22 is pre-embedded in the foundation 21, and the threaded sleeve 22 and the foundation 21 are reliably anchored and connected; the bottom stee...

Embodiment 2

[0046] In another broad embodiment of the invention, as Figure 5-7As shown, a replaceable column foot used in a recoverable function structure mainly includes a bottom steel column and a foundation 21, and the bottom steel column includes a flange 11, a web 12, a bottom plate 13, and a stiffener 18; The bottom plate 13 is provided with anchor bolt passing holes.

[0047] The bottom plate 13 is placed on the top surface of the foundation 21 . The threaded sleeve 22 is pre-embedded in the foundation 21, and the threaded sleeve 22 and the foundation 21 are reliably anchored and connected; the bottom steel column can be provided with a shear key 17 as required. 17, the base 21 is provided with a shear key groove 23 so as to cooperate with the shear key 17.

[0048] The present invention also includes a replaceable column foot and a replaceable anchor bolt, and the replaceable anchor bolt includes a headed anchor rod 51 , a washer 52 and an inner hexagon socket 53 . The headed ...

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Abstract

The invention belongs to the technical field of structural engineering steel structures, and particularly relates to a replaceable column base for a recoverable functional structure. The replaceable column base comprises a bottom layer steel column and a foundation 21, wherein the bottom layer steel column comprises a flange 11, a web 12, a bottom plate 13, a reinforcing part and a replaceable anchor bolt; the flange 11 and the web 12 are connected with the bottom plate 13 through welding; the bottom plate 13 of the bottom layer steel column is placed on the top surface of the foundation 21; and a threaded sleeve 22 is pre-buried in the foundation 21, and the threaded sleeve 22 and the foundation 21 are reliably anchored and connected. The replaceable column base can achieve yield energy dissipation under the earthquake effect so as to protect the bottom layer steel column against bending yield failure, and after an earthquake, rapid recovery of the structure function can be achieved by replacing the anchor bolt.

Description

technical field [0001] The invention belongs to the technical field of structural engineering steel structures, and in particular relates to a replaceable column base for a recoverable functional structure. Background technique [0002] Steel frame structure is an important structural form in seismic design. With the improvement of anti-seismic requirements for buildings, the recoverable functional structure that can be quickly repaired and reused after an earthquake has become an important development trend in the design of steel structures in anti-seismic areas. In the steel frame structure, the column foot is usually one of the most unfavorable parts under the earthquake; in the current steel structure design, when the strength of the column foot is small, the column foot is easy to be damaged under the earthquake; when the column foot When the strength is high, the bottom steel column is easy to be damaged under the action of earthquake. Since the column foot and the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/32E04B1/38E02D27/42
CPCE02D27/42E04B1/38E04C3/32
Inventor 施刚陈学森赵华田
Owner TSINGHUA UNIV
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