Fiber reinforced composite material rib and concrete composite beam

A composite material, fiber-reinforced technology, applied in joists, girders, trusses, etc., can solve the problems of insufficient strength of FRP bars, large deflection and deformation of concrete, and low elastic modulus of FRP bars, and achieve excellent toughness and energy. Absorptive capacity, significant nonlinear deformation, good durability

Inactive Publication Date: 2016-08-24
YANGZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

More importantly, due to the lower elastic modulus of FRP tendons, compared with reinforced concrete beams configured with the same tensile longitudinal reinforcement area, FRP tendon beams exhibit larger deflection and wider crack width, so the members in normal use The performance requirements under the limit state often become the design control factor, and the strength of FRP bars cannot be fully exerted, which limits the popularization and application of FRP bar concrete structures
[0005] For ordinary concrete

Method used

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  • Fiber reinforced composite material rib and concrete composite beam
  • Fiber reinforced composite material rib and concrete composite beam
  • Fiber reinforced composite material rib and concrete composite beam

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Embodiment Construction

[0021] Such as Figures 1 to 5 As shown, the fiber-reinforced composite material-reinforced concrete composite beam of the present invention includes fiber-reinforced composite material reinforcement and concrete coated on the periphery of the fiber-reinforced composite material reinforcement, and the concrete coated around the fiber-reinforced composite material reinforcement in the tensile region of the composite beam It is a cement-based composite material for engineering.

[0022] Such as figure 1 , 2 As shown, the tensile region of the composite beam is along the entire longitudinal length of the composite beam.

[0023] Such as image 3 , 4 As shown in , 5, the tensile region of the composite beam is a beam segment with the moment control section of the beam as the center of symmetry and whose length is 1 / 4 to 1 / 2 of the beam length.

[0024] Preferably, the composition and weight content of the cement-based composite material for engineering are:

[0025] Cement 1...

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Abstract

The invention discloses a fiber reinforced composite material rib and concrete composite beam which comprises fiber reinforced composite material ribs and concrete wrapping the peripheries of the fiber reinforced composite material ribs. The concrete wrapping the peripheries of the fiber reinforced composite material ribs in a composite beam stress area is an engineering cement-based composite. According to the composite beam, the reinforcing steel bar consumption is lowered, and the structural durability is high.

Description

technical field [0001] The invention belongs to the technical field of building components, in particular to a fiber-reinforced composite reinforced concrete composite beam. Background technique [0002] The durability of reinforced concrete structures has always been an important research topic in the field of civil engineering. The problem of steel bar corrosion in reinforced concrete structures is very prominent. Many buildings and bridges are destroyed in advance due to steel bar corrosion, resulting in huge economic losses. [0003] Fiber Reinforced Polymer Tendon (FRP tendon for short) has good corrosion resistance and material mechanical properties. The corrosion problem of reinforced concrete has promoted the research on FRP bars and FRP bar concrete structures. In recent years, the research on FRP bars and their applications has been very active in the world. A lot of research has been carried out, and a series of corresponding technical regulations have been form...

Claims

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Application Information

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IPC IPC(8): E04C3/20C04B28/02C04B14/06C04B16/06C04B18/08C04B18/14C04B103/30
CPCC04B28/02C04B2103/302E04C3/20C04B14/06C04B18/146C04B18/08C04B16/0641Y02A30/30Y02W30/91
Inventor 葛文杰曹大富李琮琦
Owner YANGZHOU UNIV
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