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Sleeve dissipative element with shear key

A technology of energy-dissipating components and shear keys, applied in the field of energy-dissipating components

Inactive Publication Date: 2011-04-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing energy-dissipating support adopts the method of installing various energy-dissipating elements and damping devices with different functions on the ordinary support or using large-ductile metal materials, which has the advantages of high cost, inconvenient maintenance and replacement after the earthquake, high processing accuracy, Disadvantages such as complicated installation limit the wide application of energy-dissipating supports

Method used

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  • Sleeve dissipative element with shear key
  • Sleeve dissipative element with shear key
  • Sleeve dissipative element with shear key

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 As shown, as an embodiment of the present invention, the energy-dissipating element of the grouting casing includes an inner pipe 1 and an outer pipe 2, the inner pipe 1 is inserted into the outer pipe 2 along the pipe axis and overlapped coaxially, the outer wall of the inner pipe 1 and the outer The surface of the inner wall of the pipe 2 can be sandblasted or shot blasted. The inner pipe wall of the overlapping section of the outer pipe 2 is provided with a shear key 6. The shear key is a solder joint. The overlapping section of the outer pipe 2 and the inner pipe 1 The outer end of the pipe is provided with an annular outer ring plate 4, and the inner end of the lap section of the outer pipe 2 and the inner pipe 1 is provided with an annular inner ring plate 5 (such as figure 2 shown), the outer ring plate 4...

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Abstract

The invention discloses a sleeve dissipative element with a shear key. The dissipative element consists of an inner tube and an outer tube which are coaxially lapped; the shear key is arranged on internal tube wall of a lapped segment of the outer tube; a cavity is formed between the inner tube and the outer tube, and an expanding cement mantle is formed in the cavity. Friction force of contact surfaces between the expanding cement mantle and the tube is increased by chemical prestress of expanding cement grout; and snap-in force between the expanding cement mantle and the shear key can improve joint strength between the outer tube and the grout mantle and control a fracture surface on the contact surface between external wall of the inner tube and the grout mantle. The dissipative element can be taken as a common support to bear axial load in a normal service status, and the dissipative element consumes and absorbs seismic energy by relative slip of the inner tube and the outer tube under the action of seismic load. The dissipative element has the advantages of low requirement for machining accuracy, steel saving and low cost. Only the grouting sleeve dissipative element needs tobe replaced if the grouting sleeve dissipative element is damaged and disabled in a seismic hazard, which is very convenient.

Description

technical field [0001] The invention relates to a support component for fixing buildings, in particular to an energy dissipation element of the support component, which is used to reduce damage to buildings and structures caused by earthquake load effects. Background technique [0002] With the increasing construction of many and high-rise buildings, earthquake resistance has become the main research object of structural design. The traditional anti-seismic design method takes "anti-seismic" as the main idea. Due to its economical and safety problems, it is gradually replaced by structural control technology. Structure control technology includes active structure control technology and passive structure control technology. Energy-dissipating bracing technology is one of the more common passive control technologies, and it is a very practical way to improve the seismic performance of structures in the seismic fortification of new buildings and the seismic reinforcement of ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98
Inventor 蒋首超赵媛媛赵晓林王震
Owner TONGJI UNIV
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