Super high-rise building structure self-adaptive friction energy dissipation extending arm system capable of resisting multiple catastrophe

Abstract

The invention discloses a super high-rise building structure self-adaptive friction energy dissipation outrigger system capable of resisting multiple catastrophe. The super high-rise building structure self-adaptive friction energy dissipation outrigger system comprises a building core tube, a peripheral huge column, an outrigger truss, a supporting bracket and a self-adaptive friction energy dissipation device. One end of the outrigger truss is fixedly supported on a building core tube, and the other end of the outrigger truss is connected with a bracket arranged on a peripheral huge column through a self-adaptive friction energy dissipation device; the self-adaptive friction energy dissipation device is provided with a pair of outer supports, a pair of middle sliding discs, a convex sliding block and four corresponding friction interfaces. A slotted hole is formed in a wing plate of the external support, and a split bolt is arranged to provide normal stress needed by friction for the self-adaptive friction energy dissipation device. The rigidity and the energy dissipation capacity of the device can be adjusted in a self-adaptive mode, the requirement for the vibration reduction performance of a super high-rise building structure under multiple disasters such as static average wind, fluctuating wind / small earthquakes, medium earthquakes and large earthquakes can be met at the same time, and the purpose of reducing influences of multiple disasters is achieved.

Description

technical field [0001] The invention belongs to the field of structural vibration control of construction engineering technology, and in particular relates to an adaptive frictional energy dissipation outrigger system of a super high-rise building structure resisting multiple catastrophes. Background technique [0002] The core tube-outrigger-column structure system is a structural form widely used in domestic and international super high-rise buildings. The core tube in the middle of the structure is connected with the giant columns on the periphery through outrigger trusses to form a lateral force-resistant system of the structure (referred to as the traditional outrigger system), which can significantly improve the lateral stiffness of the structure and effectively limit the structure’s ability to withstand wind loads. (especially under the action of average wind). However, the traditional outrigger system only provides stiffness, lacks energy dissipation means, and has ...

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Problems solved by technology

[0003] But on the one hand, the energy-dissipating outrigger breaks the rigid connection between the giant column and the outrigger truss in the traditional outrigger, and replaces it with a damper, which loses the static stiffness of the structure to a certain extent, thereby reducing the static stiffness of the control structure under the action of average wind. force deformation; on the other hand, super high-rise building structures inevitably have the risk of encountering different levels of earthquakes (small earthquakes, moderate earthquakes, and large earthquakes) during their service periods. The energy-dissipating outrigger designed for a certain level of earthquakes Because it cannot adaptively adjust its energy dissipation capacity, it is often difficult to effectively exert its effectiveness when resisting other levels of earthquakes

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