Earthquake-proof escaping stairway of building

Abstract

The invention discloses an earthquake-proof escaping stairway of a building. The earthquake-proof escaping stairway comprised a plurality of stairway platforms. Each stairway platform is installed at the top of a ring beam, each ring beam is supported by a constructional column, every two adjacent stairway platforms are connected through a stairway board, a center strut perpendicular to the horizontal face is arranged between every two stairway boards, a boss protruding out of the bottom face of each stairway board is arranged in the middle of the bottom face of the corresponding stairway board, a corbel is arranged at the bottom of each boss, each corbel is connected with the corresponding center strut, a buffering rubber pad is installed between each corbel and the corresponding boss, a reserved hole is formed in the middle of each stairway board, the upper end of each reserved hole is communicated with the top face of the corresponding stairway board, the lower end of each reserved hole is communicated with the bottom face of the corresponding stairway board, an embedded post is installed in each reserved hole, the lower end of each embedded post is connected to the corresponding corbel, and each reserved hole is filled with concrete. The earthquake-proof escaping stairway has the advantages that the earthquake-proof strength of the stairway of the building can be effectively increased, a precious escaping and rescuing channel is reserved for people in the earthquake process and after an earthquake occurs, and the number of casualties in an earthquake disaster is reduced.

Description

Technical field [0001] The invention relates to a building staircase, in particular to a building anti-seismic escape staircase. Background technique [0002] In recent years, with the continuous increase of urban population density, more and more multi-storey and high-rise buildings have been put into use in large numbers. In multi-storey or high-rise buildings, most people use elevators to go up and down, but once an earthquake occurs, the stairs are It has become the only escape route for people on floors 2 and above. However, the applicant found that after analyzing the damage to the buildings that were not completely collapsed in the devastating earthquake areas that occurred in China in recent years, The main part of the object has not collapsed, but most of the stairs in these buildings have collapsed in the earthquake, and even some buildings far away from the epicenter have basically broken and deformed in the middle of the stairs when their main parts are basically int...

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the continuous growth of urban population density, more and more multi-storey and high-rise buildings have been put into use in large quantities. In multi-storey or high-rise buildings, people mostly use elevators to go up and down. It becomes the only escape route for people on the 2nd floor and above, but the applicant finds after analyzing the damage of the buildings that have not completely collapsed in the earthquake-stricken areas that have occurred in several destructive earthquakes in my country in recent years, although the building The main part of the building has not yet collapsed, but most of the stairs in these buildings have collapsed in the earthquake, and even some buildings far from the epicenter have broken and deformed stairs in the middle when the main part is basically intact.

The applicant, after analyzing the stairs of many buildings with different degrees of damage, found that the stairs will first produce cracks in the middle during the earthquake, and the concrete structure of the stairs will be broken at the cracks. At this time, the upper and lower parts of the stairs are only It is connected by the steel bars at the cracks, and the steel bars are difficult to maintain the original shape of the stair boards, so the stair boards will be sunken downwards at the cracks in the middle. Cracks are produced at the joint between the top of the slab and the floor slab, causing the concrete here to break. At this time, the weight of the entire stair slab is applied to the steel bars at the joint between the top of the stair slab and the floor slab. Bending occurs, its own strength has been greatly reduced, and it is very easy to be completely broken when the escapees pass by or in the aftershocks, causing the whole stair board to fall, and as long as one stair board falls in the building, all the stairs below it will be damaged. The slabs will collapse accordingly, causing people to lose the only escape and rescue channel, and the collapse of the stair slabs will also cause fatal injuries to the people who are escaping on the stairs.

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