System for achieving structural shock absorption through floor slippage

Abstract

The present invention provides a system for structural damping by using floor slippage when the structure encounters a rare earthquake, including a damping layer floor, a frictional damping layer and an elastic buffer device; the frictional damping layer is laid on the The lower part of the floor slab of the friction damping layer is integrally poured together with the frame beam and frame column of the friction damping layer; the elastic buffer device is installed at the junction of the floor slab of the damping layer with the column body and the ring beam. The floor of the shock-absorbing floor is a part of the main structure, and it is converted into a shock-absorbing mass, which avoids adding too much mass to the main structure, and is easier to implement, eliminating the need to add hundreds of tons or even thousands of tons of mass blocks. Structurally, the possibility of increasing the vertical bearing load of the structure; laying the friction damping layer on the bottom layer can provide reliable friction for the damping layer floor, and the construction is simple and easy to implement; through the design of a reasonable elastic buffer device, shock absorption can be avoided The first floor slab collides with the main structure during the sliding process.

Description

technical field [0001] The invention relates to a system for structural damping by using floor slippage, which belongs to the field of construction engineering. Background technique [0002] A tuned mass damper (Tuned Mass Damper, TMD for short) is a discrete damping device, also known as an active mass damper or a harmonic damper, which has been widely used in wind vibration control of high-rise buildings, towering structures and bridges. . This kind of device is to add a certain substructure system to the main structure, and adjust the parameters of the substructure to make its natural frequency as close as possible to the fundamental frequency or excitation frequency of the main structure. When the main structure is excited and vibrates, the substructure An inertial force opposite to the vibration direction of the structure will be generated to act on the main structure, so that the vibration of the main structure is attenuated and controlled to prevent damage and failur...

AI Technical Summary

Problems solved by technology

First, mass blocks of hundreds of tons or even thousands of tons are attached to the structure, which will greatly increase the vertical bearing load of the structure; Installing large-tonnage dampers and limit devices between them has high cost and complicated structure; finally, due to the complexity of the additional TMD damping system, its construction cost is relatively high

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