Prefabricated double-energy consumption recoverable square steel tube concrete composite column and installation method thereof

A prefabricated and combined column technology, applied in columns, piers, pillars, etc., can solve the problems of insufficient integrity of CFST composite columns, save building space and construction costs, avoid waste, and avoid stress concentration.

Active Publication Date: 2018-08-03
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an assembled double-energy-consuming recoverable square concrete-filled steel tube composite column and its installation method, which are used to solve

Method used

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  • Prefabricated double-energy consumption recoverable square steel tube concrete composite column and installation method thereof
  • Prefabricated double-energy consumption recoverable square steel tube concrete composite column and installation method thereof
  • Prefabricated double-energy consumption recoverable square steel tube concrete composite column and installation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Such as figure 1 , 2 As shown in and 3, the assembled double energy consumption recoverable square concrete-filled steel tube composite column of the present invention includes type I column 2 (assembled outer square inner circular steel tube concrete column, type II column 3 (assembled self-restoring square steel tube concrete column) column), energy-dissipating connecting steel plate 5 and platform energy-dissipating connecting piece 4. The present invention is the first to create energy-dissipating connecting steel plate as the connecting member between combined columns, while ensuring the connection performance and integrity between the combined columns, in order to ensure the energy-consuming connecting The steel plate is the first to consume energy and needs to weaken the strength of the member. Therefore, a rectangular hole is opened in the web part to make it firstly destroyed by the earthquake, resulting in tearing damage, consuming earthquake energy, and avoid...

Embodiment 2

[0083] In the above-mentioned embodiment 1, one type I column 2 and four type II columns 3 are combined by using the platform energy-dissipating connector 4 and the energy-dissipating connecting steel plate 5 . It should be noted in this embodiment 2 that the combination of the type I column 2 and the type II column 3 is various, and is not limited to the combination mentioned in this embodiment.

[0084] Such as Figure 13 and 14 As shown, one type I column 2 is combined with three type II columns 3 by using the energy-dissipating connector 4 of the cap and the energy-dissipating connecting steel plate 5 to form a side-column composite column structure.

[0085] Such as Figure 15 and 16 As shown, one type I column 2 and two type II columns 3 are combined by using the energy-dissipating connector 4 of the cap and the energy-dissipating connecting steel plate 5 to form a corner column composite column structure.

Embodiment 3

[0087] The installation method of the prefabricated double-energy-dissipative recoverable square steel tube concrete composite column of the present invention comprises the following steps:

[0088] Step 1: insert the circular inner connecting cylinder 13 into the lower circular steel pipe 15, and the threaded hole should correspond to the position of the lower long hole slot;

[0089] Step 2: Set the lower square steel pipe 14 outside the lower round steel pipe 15, and the positions of the long holes in the front and rear should correspond to each other;

[0090] Step 3: Set the square outer sleeve connecting piece 6 outside the square steel pipe 14, the high-strength bolt hole 12 should correspond to the position of the long hole slot, and then pass through the square outer sleeve connecting piece 6 and the lower square steel pipe in turn through the long high-strength bolts 14. The circular steel pipe 15 in the lower section is fixedly connected to the threaded hole corresp...

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PUM

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Abstract

The invention relate to a prefabricated double-energy consumption recoverable square steel tube concrete composite column and an installation method thereof, and belongs to the technical field of structural engineering and is used for solving the problem that during a large earthquake action in the prior art, the integrity of steel tube composite columns is insufficient, and thus double-energy consumption is realized and the post-earthquake recovery capability is improved. The prefabricated double-energy consumption recoverable square steel tube concrete composite column comprises an independent foundation, class I columns, class II columns, bearing platform energy consumption connecting pieces and energy consumption connecting steel plates. T-shaped sliding grooves are formed in the fourwalls of each class I column square steel tube, both sides of each energy consumption connecting steel plate are made into a T shape, and each energy consumption connecting steel plate is inserted into the T-shaped sliding grooves to be connected with each class I column square steel tube. The lower end of each energy consumption connecting steel plate is inserted into a groove of each bearing platform energy consumption connecting piece. Vertical bearing platform connecting plates are arranged on one sides of splicing bases of the two ends of the class II columns, and the splicing bases are connected with the bearing platform energy consumption connecting pieces by using high-strength bolts. The prefabricated double-energy consumption recoverable square steel tube concrete composite column realizes the primary energy consumption of a building structure under the earthquake action and improves the anti-seismic performance of the structure.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to an assembled double-energy-consuming recoverable square steel tube concrete composite column and an installation method thereof. Background technique [0002] With the development of technology, the height and span of building structures continue to increase. In tall and long-span buildings, the columns bear high axial force. The key to the work, which requires the column not only to have sufficient strength but also to have good ductility. When a large load is encountered, the bearing capacity of a column is far below the force requirements, and when the cross-section of the column is large, the building space will be wasted, while the steel tube concrete composite column has a higher bearing capacity and good Ductility, due to the continuous restraint of steel pipes on concrete, significantly improves the poor ductility of concrete, especially high-strength conc...

Claims

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Application Information

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IPC IPC(8): E04C3/34E04B1/58E04G21/14E04B1/98E04H9/02
CPCE04B1/5812E04C3/34E04G21/14E04H9/021
Inventor 牟犇王君昌林旭川王清华张伟星
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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