CN201031475Y

CN201031475Y - Prefabricated combined stairs

Info

Publication number: CN201031475Y
Application number: CNU2007201074991U
Authority: CN
Inventors: 杨峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-28
Filing date: 2007-03-28
Publication date: 2008-03-05
Anticipated expiration: 2017-03-28

Abstract

The utility model relates to a prefabricated combination stair which has low cost, can be simply processed and has reliable quality. A flier is arranged between two staircase beams. The utility model is characterized in that the staircase beam is a section staircase beam (1) and the flier is a prefabricated reinforced concrete flier (2); an upper bent segment (21) is arranged at the internal side of the prefabricated reinforced concrete flier and a lower bent segment (22) is arranged at the external side of the prefabricated reinforced concrete flier; a connecting piece used for erecting the flier is arranged on the section steel staircase beam and the pre-embedded screw caps (4) are arranged at the left and right ends of the flier. The utility model can be used as the stair of the highrise or multistory building.

Description

Prefabricated combined staircase

Technical field

The utility model relates to the stair in the building, especially single flight and the two standardization stair that run and the stair of common levels.

Background technology

In multilayer and highrise building, generally all adopt the cast-in-situ steel reinforced concrete stair, prefabricated reinforced concrete stairs seldom adopts.The way of reproducing the pouring concrete surface layer on steel stair is also arranged in the steel building.And its construction of cast-in-situ steel reinforced concrete stair is complicated, operation is many, heavy, finished product protection is difficult, also brings the wall construction formwork difficult and influence the problem of speed of application.It involves great expense steel stair, and functional performance is poor, and trouble is installed.Therefore, a kind of easy construction of market demand, cost are low, consumptive material is economized, the exquisite stair of handsome in appearance, highly versatile, and the stair of existing report are failed fine these requirements of satisfying.

Summary of the invention

That the utility model will solve is many, adopt that cast-in-place stair construction is complicated, finished product protection is difficult in the highrise building, influence integral construction speed and adopt steel stair cost height, functional performance poor, the problem that bothers is installed; a kind of prefabricated combined staircase of the present utility model is provided for this reason; this stair cost is low; process easy, reliable in quality.

For addressing the above problem, the technical solution adopted in the utility model is to be provided with step plate between two stair stringers, its special character is that described stair stringer is the shaped steel stair stringer, step plate is gone up the folding section for the inboard has, the outside has the prefabricated reinforced concrete step plate of rolling over section down, described shaped steel stair stringer is provided with the connector that sets up described step plate, and the left and right both ends of described step plate are provided with Embeded nut.

Described connector can be that weldering is coupled to the extend internally folding shape shelf of a distance of stair stringer inboard, also can be the bolt that is placed through the stair stringer web.

Described shaped steel stair stringer can be " [" shaped steel stair stringer.

The upper horizontal surface of described step plate can be the pressing mold combination with decorative surfaces, and is so not only attractive in appearance but also have a good non-skid property.

Stair stringer described in the utility model can be divided into epimere beam and hypomere beam, and epimere beam lower end or hypomere beam upper end folding are connected with the horizontal segment beam, are shelved with the composite floor half space above the horizontal segment beam, so constitute so-called two race type stair.

Described stair stringer also can be regardless of epimere beam and hypomere beam, and this situation is not then established described half space, so constitutes so-called single flight type stair.

Described composite floor half space can be made of the profiled sheet of lower floor and top cast-in-situ steel reinforced concrete layer thereof, and profiled sheet links to each other with stair stringer by WELDING STUDS, places the welded wire fabric sheet in the cast-in-situ concrete.

The left and right both ends of step plate described in the utility model establish Embeded nut, can be the described folding section and the Embeded nut of folding section inner face direction down gone up in the Embeded nut of end sides and/or end;

The connector that sets up step plate on the described shaped steel stair stringer is a described folding shape shelf, then adopt bolt pass on this shelf through hole and the step plate folding section and down the folding section upward the described Embeded nut of inner face direction cooperate connection; Connector is the bolt that places on the stair stringer web, and then this bolt directly cooperates connection with the described Embeded nut of step plate end sides.

The utility model adopts steel and concrete combination, produce in factory, and on-site consolidation, structure is unified with decoration, compares the remarkable advantage that is had with existing stair and is:

1. cost is hanged down because of economizing with material, and structure is unified with decoration, and its comprehensive cost is lower than reinforced concrete stairs, and then cost is low more than 40% with the steel structure stairway ratio.

2. construction technology simplify greatly the assembling need not mechanical assistance, more meet the mounting condition of stair, installation rate is fast.

3. reliable in quality, handsome in appearance because of adopting batch production, mold to make structure manufacture precision height.

Description of drawings

Fig. 1 is an embodiment perspective view of the present utility model;

Fig. 2 is Fig. 1 stair side plane view;

Fig. 3 is the step plate structural representation in the utility model;

Fig. 4 is Fig. 2 A place enlarged diagram;

Fig. 5 is Fig. 2 B place enlarged diagram;

Fig. 6 removes the step plate schematic diagram among Fig. 5;

Fig. 7 is that step plate combines schematic diagram with shaped steel stair stringer bolt in the utility model.

The specific embodiment

Embodiment one

Prefabricated combined staircase, two " be provided with between [" shaped steel stair stringer 1 inboard have go up folding section 21, the outside has the prefabricated reinforced concrete step plate 2 of folding section 22 down, the upper horizontal surface of step plate 2 is the pressing mold combination with decorative surfaces, face down bonding is associated with the folding shape shelf 3 of the distance that extends internally in the stair stringer web, step plate 2 left and right both ends are provided with Embeded nut 4, on the through hole that bolt passes folding shape shelf 3 and the step plate folding section and down the Embeded nut 4 of folding section inner face direction cooperate and make step plate be connected in stair stringer.

Embodiment two

This routine prefabricated combined staircase, what be different from example one is that stair stringer 1 is divided into epimere beam and hypomere beam, hypomere beam upper end folding is connected with horizontal segment beam 11, is shelved with the composite floor half space that is made of profiled sheet 5 and top reinforced concrete floor 6 thereof above the horizontal segment beam.Other structure is identical with example one.

Embodiment three

This routine prefabricated combined staircase, what be different from example one is to replace folding shape shelf 3 with the bolt on the stair stringer web 7, bolt 7 directly cooperates with the Embeded nut 4 of step plate end sides makes step plate be connected in stair stringer.

Claims

1. prefabricated combined staircase, between two stair stringers, be provided with step plate, it is characterized in that described stair stringer is shaped steel stair stringer (1), step plate be the inboard have go up folding section (21), the outside has the prefabricated reinforced concrete step plate (2) of folding section (22) down, described shaped steel stair stringer is provided with the connector that sets up described step plate, and the left and right both ends of described step plate are provided with Embeded nut (4).

2. prefabricated combined staircase as claimed in claim 1, it is characterized in that described connector be weldering be coupled to stair stringer (1) inboard extend internally a distance folding shape shelf (3) or be placed through the bolt (7) of stair stringer (1) web.

3. prefabricated combined staircase as claimed in claim 1 or 2 is characterized in that described shaped steel stair stringer is " [" shaped steel stair stringer.

4. prefabricated combined staircase as claimed in claim 3, the upper horizontal surface that it is characterized in that described step plate (2) is the pressing mold combination with decorative surfaces.

5. prefabricated combined staircase as claimed in claim 4 is characterized in that described stair stringer is divided into epimere beam and hypomere beam, and epimere beam lower end or hypomere beam upper end folding are connected with horizontal segment beam (11), and the horizontal segment beam is shelved with the composite floor half space above (11).

6. prefabricated combined staircase as claimed in claim 5 is characterized in that described composite floor half space is made of the profiled sheet (5) of lower floor and top reinforced concrete floor (6) thereof.