A replaceable energy-dissipating component and energy-dissipating structure at the foot of a shear wall

Abstract

A replaceable energy-dissipating component for the foot of a shear wall, including upper and lower connecting sections and a main body section in the middle, the connecting section is used to connect the shear wall, the main section includes a steel pipe concrete section and a pre-tightened self-filling section, and the steel pipe concrete section includes Compression steel plates on the upper part, steel pipes on the four sides as the outer wall, concrete on the inside and anti-buckling inner core. The pre-tightening self-filling section includes inclined steel brackets, multiple compressive steel gaskets and pre-tightening coils. When under tension, The anti-buckling inner core is detached from the concrete-filled steel tube, which will not cause the concrete-filled steel tube to be damaged. The pre-tightened self-filling section can automatically fill the gap caused by tension, so that when the reverse compression is applied, the concrete-filled steel tube can bear the force immediately, and the buckling-resistant core The core and the concrete-filled steel tube bear the pressure together. Through the design, the damage of the shear wall can be concentrated on the replaceable parts. Since the energy-dissipating parts at the foot of the shear wall and the shear wall are detachably connected, the replaceable parts can be replaced after the earthquake. Quickly restore the seismic function of the shear wall.

Description

technical field [0001] The invention belongs to the technical field of buildings, and relates to an anti-shock and shock-absorbing technology, in particular to an anti-shock and shock-absorbing technology for a reinforced concrete shear wall of a high-rise building structure. Background technique [0002] Earthquakes will not only cause direct economic losses, but also cause indirect economic losses such as temporary stop or reduction of production, disturbance of the original balanced economic system, or reduction of external investment. Past earthquake damage experience shows that the indirect economic losses of earthquake disasters around the world Losses often go beyond direct economic losses. [0003] As one of the most widely used lateral force structures in high-rise structures, reinforced concrete shear walls play an important role in seismic fortification. In high-rise structures, the main function of reinforced concrete shear walls is to provide greater stiffness a...

AI Technical Summary

Problems solved by technology

[0004] The compressive bearing capacity of general concrete wall pieces is about 3-5 times of the tensile bearing capacity, and the existing energy dissipators or tensile bearings all have the phenomenon that the stiffness or bearing capacity does not match the shear wall, for example: The stiffness of the hysteresis damper or the frictional energy dissipator is too small; the tensile and compressive bearing capacity of the metal type energy dissipator or the anti-buckling support is basically equal, which does not match the characteristic that the compressive resistance of the concrete shear wall is much greater than the tensile bearing capacity; the soft steel rubber The support is made of rubber, which will cause a significant decrease in the stiffness of the shear wall

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