Assembled variable stiffness transverse connection energy dissipation parts and installation method

Abstract

The invention relates to an assembly-type variable-rigidity transverse connection energy-consuming part, which belongs to the field of anti-seismic technology of building structures. The invention relates to an assembled variable stiffness transverse connection energy-consuming part, which includes an energy-dissipating area, a lifting area, and left and right connecting end plates connected to a shear wall. The left and right connecting end plates are connected to the shear wall through bolts, and the lifting area includes several The steel plates are provided with buckling restraint plates at the front and back of the adjacent steel plates, which are connected to the steel plates by bolts, with a gap between the adjacent steel plates, and a threshold control device in the lifting area. The assembled energy-dissipating member with variable stiffness transverse connection is a variable-rigidity energy-dissipating connector that can realize reliable bolt connection, easy assembly, and detachment of shear wall members in the lateral direction, and adopts external steel plates in the energy-dissipating area and steel plates in the lifting area. The built-in construction method ensures that under the action of small earthquakes and moderate earthquakes, the damper first uses soft steel to yield and consume energy, and the steel plates in the lifting area do not participate in the work. Under the action of large and super earthquakes, the steel plates in the lifting area start to work and lift the structure performance.

Description

technical field [0001] The invention relates to an assembly-type variable-rigidity transverse connection energy-consuming part, which belongs to the field of anti-seismic technology of building structures. Background technique [0002] With the rapid development of my country's urbanization process, there are more and more complex types of high-rise and super high-rise building structures, which pose new challenges to the requirements of seismic technology and the durability of structures. With higher bearing capacity and deformation capacity, it has been widely used in structural systems. However, under the action of lateral force and vertical force, the shear wall structure has a large bending deformation. If the wall is opened with vertical joints, the vertical The contact surface will produce relative shear slip deformation. Under large earthquakes and super earthquakes, the lateral stiffness and bearing capacity of the structure will continue to decrease and collapse prob...

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Problems solved by technology

[0002] With the rapid development of my country's urbanization process, there are more and more complex types of high-rise and super high-rise building structures, which pose new challenges to the requirements of seismic technology and the durability of structures. With higher bearing capacity and deformation capacity, it has been widely used in structural systems. However, under the action of lateral force and vertical force, the shear wall structure has a large bending deformation. If the wall is opened with vertical joints, the vertical The contact surface will produce relative shear slip deformation. Under large earthquakes and super earthquakes, the lateral stiffness and bearing capacity of the structure will continue to decrease and collapse problems will occur. Therefore, it is considered to add energy-dissipating bearing devices at the places where the deformation of the shear wall is concentrated. However, if the horizontal connection between the energy dissipation device and two adjacent shear walls is connected by welding, it will cause huge residual deformation and residual stress.

[0003] At present, most shear energy-dissipating dampers are based on a single type of shear yield damper. When the damper yields, the strength does not increase, and it does not have the ability to increase the bearing capacity and stiffness after the decrease. Cannot have the ability of energy consumption, load bearing, stiffness jump and energy consumption load bearing function design

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