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Reinforced grouting sleeve dissipative element

A technology of energy-dissipating components and bushings, which is applied in the direction of building components and earthquake resistance, can solve the problems of restricting the wide application of energy-dissipating supports, requiring high processing precision, and inconvenient maintenance and replacement, etc., and achieves simple construction, low cost, and easy installation. Effect

Inactive Publication Date: 2009-09-09
TONGJI UNIV
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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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  • Reinforced grouting sleeve dissipative element
  • Reinforced grouting sleeve dissipative element
  • Reinforced grouting sleeve dissipative element

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Embodiment Construction

[0027] The preferred embodiments of the invention will be described in detail below in conjunction with the accompanying drawings.

[0028] 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 outer end of the overlapping section of the outer pipe 2 and the inner pipe 1 is provided with an annular outer ring plate 4, and the inner end of the overlapping section of the outer pipe 2 and the inner pipe 1 is provided with a Annular inner ring plate 5 (such as figure 2 shown), the outer ring plate 4 and the inner ring plate 5 are only fixedly connected with the outer pipe 2, and the inner ring plate 5, the outer ring plate 4, the inner pip...

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Abstract

The invention discloses a reinforced grouting sleeve dissipative element. The dissipative element consists of an inner tube and an outer tube which are coaxially lapped; a cavity is formed between the inner tube and the outer tube, a cement mantle is formed in the cavity, and stirrups are arranged in a grouting cavity. Friction force of contact surface between the expanding cement mantle and the tube is increased by chemical prestress of expanding cement grout; the stirrups can restrain expansion of cracks and prevent the expanding cement grout from cracking so as to improve bearing capacity and hysteretic energy dissipation properties of the dissipative element. 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 to be 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 Applications(China)
IPC IPC(8): E04B1/98
Inventor 蒋首超赵媛媛李国强王震
Owner TONGJI UNIV
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