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Replaceable cover plate type energy-dissipation column base construction

A technology of energy-dissipating columns and cover plates, which is applied to building components, infrastructure engineering, protected buildings/shelters, etc., and can solve problems such as difficult maintenance and reinforcement, unsuitable structures to continue to bear loads, and large plastic deformation

Active Publication Date: 2020-06-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Large plastic deformation occurs in the column section, making the structure unsuitable to continue to bear the load
Such plastic deformation also brings difficulties to maintenance and reinforcement.

Method used

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  • Replaceable cover plate type energy-dissipation column base construction
  • Replaceable cover plate type energy-dissipation column base construction
  • Replaceable cover plate type energy-dissipation column base construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the concrete implementation description of an example of the present invention is as follows:

[0030] Such as Figure 7 As shown, first make the foundation embedded parts, and weld the prefabricated steel plate 2 with holes, the steel pipe with holes 3, the spherical casting 4, and the protrusion 5.

[0031] Such as figure 2 , image 3 As shown, the anchor bolt 6 and the foundation embedded parts are installed and fixed before the foundation 1 is poured, the foundation 1 is poured and fully vibrated, and the concrete is poured into the embedded parts.

[0032] Such as figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, after the strength of the foundation 1 reaches 75%, the assembly of the upper part of the column foot is carried out in the following order:

[0033] First weld the factory prefabricated bottom plate 9 to the steel column 13, then weld the stiffeners 12, and then weld the factory pre...

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Abstract

The invention belongs to the technical field of constructional engineering earthquake resistance, and provides a replaceable cover plate type energy-dissipation steel column base. The steel column base comprises a concrete foundation, a foundation embedded part, an anchor rod, a column bottom casting, a bottom plate, an energy consumption plate, a cover plate, a stiffening rib and a steel column.Through the mode of setting up the energy consumption plate, a cover plate type column base which has a certain bearing capacity, rigidity and energy consumption capacity and has an easily-replaced energy consumption plate is provided in a way of setting up the energy consumption plate; under small earthquake, all components are located in an elastic state; under medium or large earthquake, the only the energy consumption plate in the steel column base can enter plasticity to perform energy consumption, and the other parts are in elastic states. the energy consumption plates can be replaced after medium or large earthquake, the quick repairing of the column base can be realized, and the column base can be recycled.

Description

technical field [0001] The invention belongs to the technical field of anti-seismic construction engineering, and in particular relates to a replaceable cover-plate type energy-dissipating steel column base. Background technique [0002] With the rapid development of production technology and welding technology, Q460 and Q690 high-strength steels are widely used in engineering structures because of their advantages in architectural style, structural safety and economic benefits. [0003] When high-strength steel columns are used in these engineering structures, the design of the column feet faces new problems. [0004] If the column foot adopts hinged column foot, the anti-sway stiffness of the whole structure will decrease obviously, and the column foot part of the structure cannot dissipate the seismic energy well. [0005] If the column foot adopts the traditional rigid-joint column foot, the node of the column foot will suffer a large bending moment when subjected to an...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04B1/98E02D27/42
CPCE02D27/42E04B1/98E04H9/021
Inventor 李国强汪绍洋孙飞飞金华建王彦博
Owner TONGJI UNIV
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