Fully prestressed and compositely integrally reinforced concrete structure

Abstract

The invention provides a fully prestressed and compositely integrally reinforced concrete structure of adopting a compositely integral dual-measure reinforcing technology of prestress and binding to reinforce a concrete beam, a plate, a column and a joint. The reinforced concrete structure comprises a beam to be reinforced, a stressed area steel plate, a tensile region steel plate, a steel plate hoop, a cable-stayed rebar and a screw, wherein a column structure of the reinforced concrete structure comprises a column to be reinforced, a jack, a welding temporary bracket and at least two groups of reinforcing assemblies; the reinforced concrete column structure comprises the column to be reinforced, a fixing component, a connection steel plate and at least two groups of reinforcing assemblies, and the reinforced concrete cantilever plate structure comprises a cantilever plate extension end to be reinforced, a steel plate strip, an chemical anchor bolt and a fastener, so as to solve essential issues that old and new structures of the known reinforced concrete structure reinforcing technology cannot cooperatively work.

Description

technical field [0001] The invention relates to the field of concrete structure reinforcement, in particular to a fully prestressed composite integrated reinforced reinforced concrete structure. [0002] Background technique [0003] Reinforced concrete structure is the most extensive and large-scale structural form in engineering structures. It is widely used in construction engineering, bridge engineering, port wharf, tunnel engineering and other fields. Concrete buildings will need to be reinforced or repaired due to material deterioration, increased load, accumulated damage, changes in use functions, and initial defects in design and construction. Therefore, the reinforcement and reconstruction technology of reinforced concrete structures has become the key content of the research in the field of structure reinforcement and reconstruction. [0004] my country's "Code for Design of Concrete Structure Reinforcement" (GB50367-2006) proposes a variety of reinforcement met...

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Problems solved by technology

[0005] (1) Enlarged section reinforcement method: good reliability, improved bearing capacity and large stiffness, but the construction period is long, the site is wet and the construction is more complicated, which increases the self-weight of the structure, increases the height of the structure, and occupies the headroom or affect the use of

[0006] (2) Bonded steel reinforcement method: it can increase the bearing capacity, but the rigidity is limited, and the corrosion resistance is poor, not fireproof, and it is not suitable for the situation where the concrete strength is very low

[0009] (5) External prestressed reinforcement method: Although this method can significantly improve the stiffness and bearing capacity, the construction is more complicated and the cost is high

The common problems that cannot be solved at the same time are: 1. The reinforced structure is a secondary combination structure, and the old and new structures lack reliable connections to form a whole, and cannot work together effectively; Deformation and damage have already occurred in the lower part, and the post-added structural material needs to be deformed again to exert the strength performance of the material

The above characteristics can be said to be the inherent disadvantages of the commonly used reinforcement methods at present.

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