Structure with prestress assembly type concrete frame-energy consumption support reinforcement arranged outside existing structure

Abstract

The invention discloses a structure with prestress assembly type concrete frame-energy consumption support reinforcement arranged outside an existing structure. The structure comprises an externally added frame-energy consumption support structure fixed to an original structure to be reinforced. The external added frame-energy consumption support structure comprises precast beams, precast columns,and precast supports; the precast supports are prefabricated in a manner that concrete is poured to a built-in low-yield-point energy consumption steel plate, reserved connecting parts for connectingare formed in the precast beams, the precast columns and the precast supports, the precast beams and the precast columns are fixedly connected, concrete is post casted on the connecting joints, penetrating prestress ribs are arranged in the precast columns which are fixedly connected in sequence, and two ends of the prestress ribs are anchored. The externally added frame is composed of multiple externally added frame units, and the precast supports are arranged in the externally added frame units. Under the condition of not affecting use of the original structure to be reinforced, the construction efficiency and the reinforcing quality are greatly improved.

Description

technical field [0001] The invention relates to an anti-seismic reinforced structure of civil engineering, in particular to a structure reinforced with a prestressed assembled concrete frame-energy-dissipating support outside the existing structure. Background technique [0002] The overall reinforcement of the additional substructure, that is, using the cooperative work of the additional overall substructure and the original structure, changing the structural system of the original structure, transferring the damage to the additional substructure, thereby changing the stress state and deformation mode of the original structure, and strengthening the overall structure Seismic capacity, thereby alleviating the overall seismic demand, is a method of strengthening a structural system. [0003] However, most of the existing reinforcement methods are limited to reinforcement at the component level, such as enlarging the cross-section of the component, attaching steel plates, etc....

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Problems solved by technology

[0003] However, most of the existing reinforcement methods are limited to reinforcement at the component level, such as enlarging the cross-section of the component, attaching steel plates, etc. In the existing technology, it is more inclined to strengthen the components with insufficient seismic capacity in the original structure, rather than from the overall seismic performance of the structure. performance point of view

[0004] Moreover, most of the existing additional substructure reinforcements need to be cast-in-place. The construction period is complicated and long, and the construction quality is difficult to guarantee. This has lost its original advantages to a certain extent.

Most of the existing additional substructures are external frames, and few external frame-supports are used; most of the existing external-support studies are steel structures, and few use steel-concrete combinations

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