Reinforced concrete precast member containing steel plate

Abstract

The invention relates to a reinforced concrete prefabricated part containing a steel plate, and belongs to building structure members. The prefabricated part comprises a plurality of steel bars and an external concrete protective layer with enough thickness thereof. The prefabricated part is characterized by further comprising the steel plate composed of the steel plate and epoxy group pasted resin. The steel plate consisted of the steel plate and epoxy group pasted resin can be positioned in the concrete protective layer, the steel plate thereof is fixed on the steel bars or adhered to the surface of the concrete protective layer. Compared with the prior art, since the steel plate has the advantages of higher axial tensile strength, smaller strength-weight ratio, high durability, corrosion resistance and high aging and fatigue resistance, the adopted reinforced concrete prefabricated parts containing steel plates are capable of adhering together to the concrete protective layer by means of the epoxy group pasted resin in the positions subject to damage or crack of the prefabricated parts, thereby improving partial shearing, tension and fatigue resistance of the prefabricated parts, improving the ductility of the members, increasing the bearing capacity of the members and satisfying the use security obviously.

Description

(1) Technical field: [0001] The invention relates to a reinforced concrete prefabricated part containing steel plates, which belongs to building structural components. (two) background technology: [0002] In the prior art, the reinforced concrete prefabricated part is a structural part which is composed of two materials, steel bar and concrete, which are jointly stressed. It uses concrete to bear the pressure and steel bars to bear the tensile force, so reinforced concrete prefabricated parts can make full use of the mechanical properties of steel bars and concrete. However, the crack resistance of ordinary reinforced concrete prefabricated parts is poor, and cracks often appear during normal use, which is very unfavorable to reinforced concrete prefabricated parts. The existence of cracks will reduce the impermeability and frost resistance, and cause corrosion of steel bars, affecting the durability of structures; The work of repair and reinforcement is also more difficul...

AI Technical Summary

Problems solved by technology

However, the crack resistance of ordinary reinforced concrete prefabricated parts is poor, and cracks often appear during normal use, which is very unfavorable to reinforced concrete prefabricated parts. The existence of cracks will reduce the impermeability and frost resistance, and cause corrosion of steel bars, affecting the durability of structures; The work of repairing and strengthening is also more difficult. For some structures, cracks will cause water leakage, which will affect the normal use of structural parts and bring unsafe

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