Seismic-reducing floor slab with cavities

Abstract

A seismic-reducing floor slab with cavities is characterized by comprising a floor slab (1), at least one cavity (2) preserved in the floor slab (1), and at least one damper (3) preset in the cavities (2). The dampers are scattered and distributed in the cavities of the floor slab so that the great benefit is to achieve seismic reduction and disaster prevention without affecting functional use of a building, and the seismic-reducing floor slab with cavities has the advantages of low manufacturing cost, easiness in construction, no maintenance and the like. The seismic-reducing floor slab with cavities has a fine seismic reducing effect for distance earthquakes, near earthquakes and even seismic centers.

Description

technical field [0001] The invention belongs to the technical field of building structures, in particular to a cavity floor slab with a shock absorbing function. Background technique [0002] In recent years, frequent earthquakes have caused huge casualties and property losses. In the Wenchuan earthquake in 2008, 69,197 people were confirmed dead, and the direct economic loss reached 845.1 billion yuan. In most earthquakes, it is not the earthquake itself that causes mass casualties, but the collapse of houses caused by the earthquake. Therefore, strengthening the anti-seismic performance of the building itself and taking appropriate measures for isolation and shock absorption are of great significance to reduce the losses caused by earthquakes. [0003] The traditional seismic design ensures the seismic performance of the structure by properly selecting the location of the plastic hinge and designing the detailed structure. However, the traditional seismic design not onl...

AI Technical Summary

Problems solved by technology

[0008] However, the effect of a single passive control method in dealing with strong earthquakes, high-rise buildings and long-span structures still has many shortcomings. Therefore, the seismic design method based on the performance of the vibration control device itself can improve the performance of passive control methods in different environments. Adaptability issues still need to be further studied in depth

[0009] Both TMD and TLD are huge in size, difficult to construct, difficult to maintain, and expensive to build. Moreover, the settings of such dampers are relatively concentrated, which affects the use and function of the building.

It can reduce or alleviate the structural damage caused by the horizontal impact force of the far-earthquake, but it is difficult to reduce or alleviate the structural damage caused by the impact force of the near-earthquake or the epicenter from bottom to top

Images