Energy-dissipation and seismic-mitigation oblique prestress shear wall structural system suitable for prefabrication and assembly construction

Abstract

The invention relates to the field of building structure seismic resistance and energy-dissipation seismic-mitigation control, in particular to an energy-dissipation and seismic-mitigation oblique prestress shear wall structural system suitable for prefabrication and assembly construction. The structural system includes a prefabricated shear wall, a prestressed inhaul cable, a prefabricated frame column, turning angle constraint connection pieces and an energy-dissipation component; corrugated hoses are embedded in the prefabricated shear wall and internally provided with the prestressed inhaul cable, the four corners of the prefabricated shear wall are provided with the turning angle constraint connection pieces, and the turning angle constraint connection pieces are connected with the energy-dissipation component. The structural system has the advantages that the overall deformation of an upper wall body and the overall deformation of a lower wall body are consistent, a whole control structure is laterally displaced, at the same time, the shear wall structure has a certain self-resetting ability, the overall deformation helps energy-dissipation steel plates give full play to energy dissipations characteristics, a single weak link does not appear, the assembly efficiency of the overall structure is improved, site construction is convenient to achieve, the construction period is effectively shortened, and the cost is saved.

Description

technical field [0001] The invention relates to the field of anti-seismic and energy-dissipating vibration-reduction control of building structures, in particular to an oblique prestressed shear wall structure system for energy-dissipating and shock-absorbing, which is suitable for prefabricated assembly. Background technique [0002] The commonly used reinforced concrete shear wall structure has high rigidity, small lateral deformation under horizontal action, and easy to meet the requirements of bearing capacity, so it is widely used in the construction of taller high-rise buildings. [0003] On the one hand, due to the uncertainty, suddenness and destructiveness of earthquakes, structural engineers and researchers have to go all out. For strong earthquakes, engineering structures cannot resist rigidly. The only way is to use the ductility of the structure to reduce deformation. Response to force, exchange space for time, use softness to overcome rigidity. The pure shear ...

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Problems solved by technology

[0004] On the other hand, existing earthquake damage surveys show that cast-in-place shear walls perform well in earthquakes due to their good integrity and strong energy dissipation capacity, but cast-in-place shear wall structures are often severely damaged after major earthquakes , the residual deformation is large

Although many buildings did not collapse during the earthquake, they needed to be rebuilt due to poor reinforcement and repairability, and the construction of cast-in-place structures was slow, and the layout of the shear wall system was not flexible enough

Therefore, the demand for industrial production has also led to the exploration and research on the shear wall structure suitable for prefabricated assembly. The research shows that the failure mechanism of the prefabricated shear wall panel is the shearing of the horizontal joints between the wall panels. Sliding and wall swaying, vertical joints mainly play a role in energy consumption; at the same time, the US-Japan joint project PRESSS developed steel bars or steel bars that pass through prefabricated shear wall panels and their horizontal joints through post-tensioning. Since then, domestic scholars have also studied this kind of structure with post-tensioned prestressed tendons, but this kind of structure has a large displacement under the action of the earthquake, and the residual deformation is small or no, so it has a strong natural Reset ability, but the biggest flaw is that the energy consumption ability is obviously insufficient

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