Additional swing steel frame capable of improving seismic resistance of frame structure

Abstract

The invention discloses an additional swing steel frame capable of improving seismic resistance of a frame structure, and belongs to the field of building anti-seismic protection. The additional swingsteel frame comprises the frame structure and is characterized in that a swing steel frame body is arranged on one side of the frame structure, the frame structure is connected with the swing steel frame body through an energy-absorbing device, the bottom of the swing steel frame body is hinged to a foundation, and the swing steel frame body rotates through a hinging point and comprises a horizontal support, a vertical support, an inclined support and a vertical self-resetting system. According to the frame, the energy-absorbing device has good energy-dissipating capacity and anti-seismic effect and can further reduce and even remove residual deformation of the structure. The frame can effectively control structure deformation, and the seismic energy absorbing capability and the use function recovering capability of the overall frame structure are improved.

Description

technical field [0001] The invention belongs to the field of anti-seismic protection of buildings, and in particular relates to an additional swaying steel frame for improving the anti-seismic performance of a frame structure. Background technique [0002] Earthquakes occur frequently in our country, and a large number of building structures are damaged, seriously affecting the national economy. Especially when the energy dissipation capacity and bearing capacity of most components of the structure have not yet played a role, the weak layer of the structure has been severely damaged. For example, during the Wenchuan earthquake in Sichuan in 2008, a large number of reinforced concrete frame structures suffered weak layer failure. During the Wenchuan Earthquake, a six-story frame structure with a weak floor at the bottom in Dujiangyan City had hinges at the upper and lower ends of the frame columns on the first floor, causing serious damage, but the upper floors were basicall...

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Problems solved by technology

For example, Japan carried out seismic reinforcement of the complex building of Tokyo Institute of Technology, and the swing wall system was applied in the seismic reinforcement reconstruction project of the G3 building of Tokyo Institute of Technology, which was built in 1979 and is an 11-story steel-reinforced concrete frame structure According to the seismic appraisal, so far, foreign scholars have carried out a series of studies on swinging and self-resetting structural systems, while there are few studies in this field in my country.

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