Full-bolt buckling-restrained brace and preparation method thereof

Abstract

The invention discloses a full-bolt buckling-restrained brace and a preparation method thereof, and belongs to the technical field of building structure engineering. Two groups of end part stiffening ribs and at least two groups of limiting rib plates are arranged on a core plate, the two groups of end part stiffening ribs are arranged at the two ends of the core plate respectively, the limiting rib plates are arranged between the two groups of end part stiffening ribs in the axial direction of the core plate, an end part restraining unit is arranged between the end part stiffening ribs and the adjacent limiting rib plates, a middle restraining unit is arranged between every two adjacent limiting rib plates, the upper ends of the end part restraining units and the upper ends of the middle restraining units are connected with the corresponding restraining unit cover plates, and the lower ends of the end part restraining units and the lower ends of the middle restraining units are connected with the corresponding restraining unit cover plates. The full-bolt buckling-restrained brace is convenient to process and transport, and therefore the engineering quantity and resource consumption are reduced; the core plate enters plasticity after multi-section buckling, and the energy dissipation capacity of the core plate is fully exerted; the construction is simple and fast, and the safety of the structure is ensured while the working efficiency is improved; and the problem that a traditional concrete support needs regular maintenance is avoided, and green and energy-saving effects are achieved.

Description

technical field [0001] The invention relates to an all-bolt anti-buckling support and a preparation method thereof, belonging to the technical field of building structure engineering. Background technique [0002] my country is a country with a high incidence of earthquake accidents. How to ensure the ductility of buildings under the action of strong earthquakes, so as to give the people more time to escape is a key factor in structural design. [0003] The anti-buckling support can realize plastic deformation through its own yield under the earthquake action to consume the earthquake action and avoid damage to important parts of the structure. However, the current anti-buckling supports have the following problems during use: [0004] 1. The self-weight of the integral support is relatively large, so the requirements for transportation and hoisting are increased; [0005] 2. Under the action of reciprocating load, after buckling and deformation of the supported core plate...

AI Technical Summary

Problems solved by technology

[0004] 1. The self-weight of the integral support is relatively large, so the requirements for transportation and hoisting are increased;

[0005] 2. Under the action of reciprocating load, after buckling and deformation of the supported core plate, it will usually be damaged in one place, and the rest of the parts cannot continue to bear the load, resulting in the failure of the support to fully exert its energy dissipation capacity, thus causing waste of core plate materials , and in order to achieve the required energy consumption effect, it is necessary to increase the amount of support, which in turn causes problems such as an increase in project cost and an increase in project volume;

[0006] 3. During the design of the support, due to the complicated parts, it not only increases the processing cost, but also adds a lot of complicated processes to the production of the support, making the manufacturing process complicated;

[0007] 4. The support of the restraint unit using concrete requires concrete maintenance, not only the processing cycle is long, but also the concrete cannot be recycled, which is not compatible with the green construction, energy saving and emission reduction policies advocated by the state

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