Existing reinforced concrete (RC) structure reinforcing structure based on BRBs and reinforcing method thereof
A technology of reinforced concrete and reinforced concrete columns, which is applied in the reinforced structure of existing reinforced concrete structures and its reinforcement field, can solve the problems of changing the dynamic performance of existing buildings, increasing the structure's self-weight, time-consuming and labor-intensive problems, and achieves the improvement of lateral stiffness and The ability to dissipate seismic energy, improve the seismic performance, and the effect of rapid construction
Pending Publication Date: 2017-07-28
FUZHOU UNIV
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Problems solved by technology
These reinforcement methods are either time-consuming or labor-intensive, or because of the impact on the use of building space and the appearance of the building, or because of high cost, or because the dynamic performance of the existing building is changed due to the excessive increase in the structure's self-weight, or because it cannot be used after the earthquake. For reasons such as replacement, there are certain limitations
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[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] Such as Figure 1-3 As shown, the present invention is an existing reinforced concrete structure based on BRB, including an existing reinforced concrete structure 1 composed of reinforced concrete beams 101 and reinforced concrete columns 102, and the existing reinforced concrete structure 1 is from bottom to top Several reinforcement layers are provided, and each reinforcement layer includes at least one buckling-restrained brace 2 (BRB) arranged obliquely. Above; the buckling restraint support 2 is connected to the existing reinforced concrete structure 1 as a whole, and the two cooperate to achieve the purpose of strengthening the existing reinforced concrete structure, and the seismic performance is good.
[0035] In this example, if Figure 4 As shown, the reinforcement layer includes a buckling-constrained support 2 arr...
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The invention relates to an existing reinforced concrete (RC) structure reinforcing structure based on BRBs and a reinforcing method thereof. The existing RC structure reinforcing structure comprises an existing RC structure composed of RC beams and RC columns and is characterized in that the existing RC structure is provided with a plurality of reinforcing layers from bottom to top; each reinforcing layer comprises at least one obliquely arranged BRB; and each of the two ends of the BRBs is fixedly connected to the existing RC structure through a joint plate. According to the existing reinforced concrete (RC) structure reinforcing structure and the reinforcing method thereof, the existing RC structure is reinforced by mounting the BRBs in the existing RC structure, structural design is reasonable, anti-lateral rigidity and the bearing capacity of the structure can be remarkably improved, and good anti-seismic performance is achieved.
Description
[0001] Technical field: [0002] The invention relates to a BRB-based existing reinforced concrete structure reinforcement structure and a reinforcement method thereof. [0003] Background technique: [0004] In the strong earthquakes at home and abroad in recent years, especially in the several strong earthquakes experienced by our country since 2008, a large number of reinforced concrete frame structures (Reinforced concrete, RC) collapsed. The main reason is that the buildings lack sufficient ductility and wear resistance. ability. After the 5•12 Wenchuan Earthquake, my country revised the original "Code for Seismic Design of Buildings" (GB50011-2001) based on the experience of earthquake damage. The newly promulgated "Code for Seismic Design of Buildings" (GB50011-2010) has increased the seismic fortification intensity in some areas, adjusted the design earthquake grouping, raised the seismic design requirements for concrete frame structures, and added the principles of bu...
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IPC IPC(8): E04G23/04E04H9/02E04B1/98
CPCE04G23/04E04H9/021
Inventor 陈伟宏刘万里陈志宇
Owner FUZHOU UNIV