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Grouting sleeve dissipative element with protection piece

A technology of energy-consuming components and protection parts, which is applied to building components, shock-proof and other directions, can solve the problems of restricting the wide application of energy-consuming supports, high processing precision requirements, inconvenient maintenance and replacement, etc., and achieves simple construction, low cost, and steel saving. Effect

Inactive Publication Date: 2011-01-19
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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  • Grouting sleeve dissipative element with protection piece
  • Grouting sleeve dissipative element with protection piece
  • Grouting sleeve dissipative element with protection piece

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Embodiment Construction

[0021] 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 a practical example of the present invention, the energy-dissipating element of the grouted casing with protective parts 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, and the inner pipe 1 The surface of the outer wall and the inner wall of the outer tube 2 can be sandblasted or shot blasted; the outer wall of the inner tube 1 is covered with a metal skin 6, and the outer surface of the metal skin 7 is provided with several distributed steel bars 7 extending axially along the inner tube. , there are several rebar heads 8 on the distribution rebar 7 (such as figure 2 As shown), 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 ...

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Abstract

The invention discloses a grouting sleeve dissipative element with a protection piece. The dissipative element consists of an inner tube and an outer tube which are coaxially lapped; external wall of the inner tube is provided with the protection piece consisting of metal skin, distributed steel bars and steel bar heads; a cavity is formed between the inner tube and the outer tube, and an expanding cement mantle is formed in the cavity. Contact surface between the expanding cement mantle and a steel tube are pressed tightly by chemical prestress of expanding cement grout to increase friction force, and the protection piece can protect internal surface of the expanding cement mantle and prevent reduction of bearing capacity due to cracking under reciprocating friction. 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 Patents(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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