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Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure

A technology for strengthening concrete and concrete structures, which can be used in building structures, buildings, etc., and can solve problems such as limitations

Inactive Publication Date: 2007-03-28
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Zheng Bailin and others have carried out experiments and theoretical analysis on its performance from the perspective of micromechanics, but the research has just started, limited to the material level and the composite of steel and GFRP

Method used

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  • Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure
  • Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure
  • Steel-continuous-fiber composite-rib reinforced concrete earthquake-resisting structure

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Experimental program
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Embodiment Construction

[0070] (1) Basic principles of design

[0071] For the purpose of obtaining stable secondary rigidity and achieving moderate earthquake repairability, the SFCB composite bar obtained by compounding FRP and steel bar is used to strengthen the concrete anti-seismic structure, and the anti-seismic performance is improved by controlling its bonding performance with concrete .

[0072] When manufacturing SFCB, based on structural performance requirements, using classical lamination theory and hybrid theory, changing various parameters (fiber type, resin type, steel bar type, steel, fiber ratio, surface treatment, fiber winding angle and method, etc.) Properties of steel-continuous fiber composite bars (SFCB), systematically studied to summarize its basic mechanical properties.

[0073] At the same time, through some effective methods to control the bond performance between SFCB and concrete, as well as SFCB-concrete bond mechanism and load-slip curve, the corresponding structure i...

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Abstract

The invention relates to a steel-continuous fiber composite rib enhancing concrete antiseismic construction that adopts steel-continuous fiber composite rib with normal reinforcing bar as main rib. The steel-continuous fiber composite rib adopts intermix FRP that covering layer covers the inner core of reinforcing bar. The column, node and frame of antiseismic construction are made up of the column, node, frame identity, steel-continuous fiber composite rib and stirrup. The composite rib is located in the concrete structure protection layer, and was encircled by stirrups, and framework is formed between them by the method of lashing or sintering. After the steel-continuous fiber composite rib preprocessed, taking cementing control process to the external surface of the mixing FRP covering layer of steel-continuous fiber composite rib, and pouring into the concrete structure identity.

Description

technical field [0001] The invention relates to the application of a steel-continuous fiber composite bar (SFCB) and its reinforced concrete anti-seismic structure in civil engineering and traffic engineering, and belongs to the technical field of new material structures. Background technique [0002] At present, my country's current seismic code adopts the method of "three-level fortification and two-stage design". Among the three levels, "not damaged by small earthquakes" and "not collapsed by major earthquakes" have quantified parameters, which are convenient for application in actual design. But for "moderate earthquake repairable", the code only gives a qualitative description, and it is only guaranteed by structural measures, so it is difficult to be reflected in the actual design, and "moderate earthquake repairable" cannot be truly realized. Secondly, with the development of materials and earthquake engineering technology, the transformation of the fortification thi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/19E04B1/16E04B1/21
Inventor 吴智深吴刚吕志涛
Owner SOUTHEAST UNIV
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