CN101555724B

CN101555724B - Method for improving high-rise building safe evacuation scissors staircase and structure thereof

Info

Publication number: CN101555724B
Application number: CN2009100312411A
Authority: CN
Inventors: 尤建霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-29
Filing date: 2009-04-29
Publication date: 2010-08-04
Anticipated expiration: 2029-04-29
Also published as: CN101555724A

Abstract

The invention relates to a method for improving a high-rise building safe evacuation scissors staircase and a structure thereof. The invention is characterized in that one section of any two-section straight run staircases of existing scissors staircases is selected, internally folded and connected to a corresponding floor, and the folding positions of the two staircases are all designed to be rest platforms. The invention reduces the stair well face widths of the staggered staircases of the existing high-rise buildings, completely uses space heights among floors, effectively reduces the spacearea of public stair wells, reduces the face width of the stair wells without reducing the bearing capacity of the floor, reduces unnecessarily wasted land area, and reduces the construction cost ofthe high-rise building safe evacuation scissors staircases. For the invention, distance between two end openings of each floor is shorter, when fire incidents occur, persons in the building can arriveat the other end opening from one end opening in shorter time, thereby increasing valuable evacuation escaping time, enhancing the escaping opportunity of the persons on the floors, and providing better security guarantee.

Description

Improving one's methods and structure of a kind of high-rise building safe evacuation scissors staircase

Technical field

The present invention relates to a kind of staircase structure of building, specifically a kind ofly reduce the structure that shared area reaches the fire-fighting requirement.

Background technology

Known basis " Code for fire protection design of high rise buildings " requires should not be less than two emergency exits about each fire district of highrise building, common way is to adopt scissors ladder structure, the two ends of twice stair are respectively the stair activity mouth, and the half space that scissors ladder two ends connect is in two floor faces respectively.Yet this make can make staircase face width lengthening, it is big that stair self gradient becomes, loaded length is elongated, increased the stiffness of concrete structure, make building costs improve, the shared area that also extends one's service has simultaneously also increased the shared land area of highrise building when reducing the dwelling house usable floor area.And this two stair downstairs mouthful between distance far away, as want to arrive the time that need grow with another ladder way of going downstairs of layer from a stair mouth, the egress time that personnel need in the building after high building generation fire-fighting accident is longer.

Summary of the invention

Purpose of the present invention is exactly, a series of deficiencies such as staircase face width long, self gradient big long at above-mentioned existing highrise building scissor-ladder-type safe escape stair loaded length, provide a kind of make full use of the floor gap height, effectively reduce public staircase area, reduce the improving one's methods and structure of high-rise building safe evacuation scissors staircase of staircase face width.

Technical scheme of the present invention is as follows:

Improving one's methods of a kind of high-rise building safe evacuation scissors staircase is characterized in that: be connected to corresponding floor after two sections straight race formula stair that will have the scissors ladder now are all chosen a flight of stairs invagination, and the place of being folded to of two stair all is arranged to half space.

The part stair of described two sections stair invaginations become 90 degree with the part stair ground projection angle of not rolling over.

The part stair of described two sections stair invaginations are positioned at the top of half space, and they are connected to a floor.

A kind of improvement structure of high-rise building safe evacuation scissors staircase, it is characterized in that including the scissors ladder and the half space of staggered form, half space is between two adjacent floors, the turn to stair and the scissors ladder of two floors all are connected to half space about leading to respectively, turn to stair with respect to the terraced invagination of scissors.

The described ground projection angle that turns to stair and scissors ladder is 90 degree, forms L type stair.

Beneficial effect of the present invention has:

When satisfied " Code for fire protection design of high rise buildings " requires, reduced the staircase face width of present highrise building staggered form shearing ladder, made full use of the floor gap height, effectively reduce public staircase area, reduce the staircase face width, the bearing capacity of floor does not reduce, and has reduced the slope of stairs, reduce unnecessary land area waste, also reduced the building costs of high-rise building safe evacuation stair simultaneously.And compare with original straight race formula scissors ladder, the invention enables every floor ladder two end openings between distance shorten, promptly when safe fire-fighting accident takes place, personnel in the building can spend the shorter time to arrive another ladder way of going downstairs from the ladder way of going downstairs, so just increased and protected expensive evacuation escape time, strengthened floor personnel's escape chance, better safety guarantee is provided.

Description of drawings

Fig. 1 is the plane structure schematic diagram of staggered floor L type safety stair of the present invention.

Fig. 2 is the plane structure schematic diagram at the attic place of staggered floor L type safety stair of the present invention

Fig. 3 is existing straight race formula scissors ladder plane structure schematic diagram.

Fig. 4 is existing straight race formula scissors ladder perspective view.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is further described:

The present invention has made full use of the floor height of floor gap, is connected to corresponding floor after two sections straight race formula stair of existing scissors ladder are all chosen a flight of stairs invagination, and the place of being folded to of two stair all is arranged to half space.As shown in Figure 1, the part stair of described two sections stair invaginations (promptly turning to stair 2) become 90 degree with part stair (being scissors ladder 1) the ground projection angle of not rolling over, form L type stair.The present invention is equivalent to split into two sections stair with directly running formula scissors ladder, and one section is scissors ladder 1, and another section realizes leading to a last floor for turning to stair 2 by turning to stair 2.Since turn to stair 2 mark time and the half space 3 at stair mouth place, scissors ladder 1 two ends is in same wide of building, so neither can take more half space space, also realized reducing the purpose of building floor space.Turn to the length of stair 2 and the height of half space 3 to decide according to the actual needs of building.

In Fig. 1, there are two to turn to stair 2 can lead to half space 3 between floor 4 and next floor from floor 4, again from the scissors of two intersections ladder 1 time to next floor, so just both satisfied the regulation that should not be less than two emergency exits about each fire district of highrise building, the loaded length of stair is shortened, reduced the stiffness requirement of stair, reduced building costs concrete structure.

As shown in Figure 2, can also establish on the half space 3 of attic of the present invention and next floor gap more two logical scissors ladders 1 of living attic ', be equivalent to like this attic floor 4 have four can following emergency exit to half space 3 between attic and next floor, can further ensure attic personnel's safe escape requirement.

The foregoing description only is an a preferred embodiment of the present invention, under design of the present invention, can be out of shape arbitrarily, as turn to stair 2 also can not form vertical L type with scissors ladder 1, but form arbitrarily angled, or the part that is folded to is a scissors ladder 1, as long as turn to platform 3 to be between two floors, by scissors ladder 1 with turn to being folded to of stair 2, all can reach the purpose that reduces the staircase face width.The undeclared part of other that the present invention relates to is same as the prior art.

Claims

1. a high-rise building safe evacuation scissors staircase improves one's methods, it is characterized in that: be connected to corresponding floor after two sections straight race formula stair that will have the scissors ladder now are all chosen a flight of stairs invagination, and the place of being folded to of two stair all is arranged to half space, the part stair of described two sections stair invaginations become 90 degree with the part stair ground projection angle of folding not.

2. improving one's methods of high-rise building safe evacuation scissors staircase according to claim 1 is characterized in that the part stair of described two sections stair invaginations are positioned at the top of half space, and they are connected to a floor.

3. the improvement network structure of a high-rise building safe evacuation scissors staircase, it is characterized in that including the scissors ladder and the half space of staggered form, half space is between two adjacent floors, the turn to stair and the scissors ladder of two floors all are connected to half space about leading to respectively, turn to stair with respect to the terraced invagination of scissors, the described ground projection angle that turns to stair and scissors ladder is 90 degree, forms L type stair.