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Replaceable plate insertion type energy dissipation column base structure

An energy-dissipating column and plug-in technology, applied in the direction of columns, piers, pillars, etc., can solve the problems that the structure is not suitable for continuous load bearing, large plastic deformation, difficult maintenance and reinforcement, etc.

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 plate insertion type energy dissipation column base structure
  • Replaceable plate insertion type energy dissipation column base structure
  • Replaceable plate insertion type energy dissipation column base structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the concrete implementation description of an example of the present invention is as follows:

[0033] 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.

[0034] 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.

[0035] Such as figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, after the foundation strength reaches 75%, the assembly of the upper part of the column foot is carried out in the following order:

[0036] The factory first makes various panels according to the drawing requirements. In the factory, the backing plate is spot-welded on the center o...

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PUM

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Abstract

The invention belongs to the technical field of constructional engineering earthquake resistance, and provides a replaceable plate insertion type energy dissipation column base structure comprising aconcrete base, a base embedded part, anchor rods, column bottom castings, a lower bottom plate, a cushion plate, an energy dissipation plate, an upper bottom plate, stiffening ribs and steel columns.By means of the manner of arranging the inserted type energy dissipation plate, the plate insertion type column base which has certain bearing capacity, rigidity and energy dissipation capacity and allows the energy dissipation plate to be easily replaced is put forward. Under small earthquakes, all the components are in the elastic state. Under medium earthquakes or large earthquakes, only the energy dissipation plate of the steel column base can have plasticity to conduct energy dissipation, and the rest parts are all in the elastic state. After the medium earthquakes or the large earthquakes, rapid repair of the column base can be achieved by replacing the energy dissipation plate so that the column base can be repeatedly used.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of construction engineering, and in particular relates to a replaceable plug-in 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): E04H9/02E04B1/98E04C3/32
CPCE04B1/98E04C3/32E04H9/021
Inventor 李国强汪绍洋孙飞飞金华建王彦博
Owner TONGJI UNIV
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