Concrete shear wall with high shear performance and fiber reinforced composite grid reinforcement

Abstract

The invention discloses a high-shearing-performance concrete shear wall provided with fiber reinforced composite material lattice bars. Reinforcing bars of the shear wall comprise the fiber reinforcedcomposite material lattice bars and ordinary steel bars, wherein the fiber reinforced composite material lattice bars are in horizontal arrangement according to the design spaces in accordance with the shear resistance performance requirement of the shear wall, and realize the unified replacement on the horizontal distribution bars, hoop bars and tensioning bars of a conventional reinforced concrete shear wall by using the special lattice shapes; and ordinary steel bars are vertically arranged along a wall body in a way of being next to the lattice nodes of the fiber reinforced composite material lattice bars, and are effectively connected with the nodes to form an inside reinforced framework. The lateral supporting and restriction on the ordinary steel bars vertically arranged along theshear wall can be realized in an integral lattice form by using the fiber reinforced composite material; through the special construction form of the lattice bars, the construction work procedures ofthe shear walls can be simplified; and the shear resistance performance of the concrete shear wall and the durability of a component are improved by using the high-intensity characteristics and anti-corrosion performance of the fiber reinforced composite material lattice bars.

Description

technical field [0001] The invention belongs to the technical field of concrete structures, and in particular relates to a high-shear-resistance concrete shear wall configured with grid bars of fiber-reinforced composite materials. Background technique [0002] In recent years, high-rise buildings have developed rapidly. In order to prevent high-rise buildings from becoming the weak link of the structure due to insufficient lateral stiffness, reinforced concrete shear walls have become the preferred structural lateral force-resistant components of this type of building due to their high lateral stiffness. However, due to the limitation of floor height, shear walls with small height-to-width ratios often appear, and brittle shear failures are prone to occur under earthquake action. Historical earthquake damage also shows that although the section design of concrete shear walls with large height-to-width ratios is carried out in accordance with the requirements of current code...

AI Technical Summary

Problems solved by technology

At present, the annual investment in infrastructure construction in my country's coastal areas is as high as 2 trillion yuan, and the cost of maintenance and reinforcement accounts for about 40%. Although there are external anti-corrosion measures, the problem of steel corrosion cannot be solved from the root.

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