CN204662717U

CN204662717U - A kind of staircase prefabricated reinforced concrete fire barrier structure

Info

Publication number: CN204662717U
Application number: CN201520112749.5U
Authority: CN
Inventors: 郭海山; 刘康; 杨晓杰; 耿娇; 范昕; 齐虎; 李明
Original assignee: China State Construction Engineering Corp Ltd CSCEC
Current assignee: China State Construction Engineering Corp Ltd CSCEC
Priority date: 2015-02-16
Filing date: 2015-02-16
Publication date: 2015-09-23
Anticipated expiration: 2025-02-16

Abstract

The utility model discloses a kind of staircase prefabricated reinforced concrete fire barrier structure, described structure is made up of prefabricated reinforced concrete fire barrier, precast concrete stair, staircase half space beam and connector; Both sides, prefabricated reinforced concrete fire barrier top have dividing plate to choose ear, and the end face of staircase half space beam chosen ear-hang and be located at by the dividing plate of prefabricated reinforced concrete fire barrier by both sides. The utility model adopts the mode hanging that armored concrete fire barrier is installed, and structural stability is good, and power transmission is clear and definite; Common wallboard production line can be utilized to produce, and cost is low, and fabrication and installation are convenient, is applicable to being applied to design and the construction of the prefabricated fire barrier of high residential building scissors ladder.

Description

A kind of staircase prefabricated reinforced concrete fire barrier structure

Technical field

The utility model belongs to reinforced concrete work technical field, particularly a kind of staircase prefabricated reinforced concrete fire barrier structure.

Background technology

At present, the mounting means of staircase prefabricated reinforced concrete fire barrier mainly dividing plate is arranged on marking time of precast stair, top is connected with stair base plate, this mounting means causes the complex-shaped of fire barrier, zigzag below, top is hypotenuse, adds the difficulty of making, reduces the service efficiency of platform mould; In addition, the stair gangboard of large span bears larger load, the corresponding increase of stair cross section and arrangement of reinforcement; In addition, fire barrier is all connected with stair up and down, and integral rigidity is large, easy to crack under geological process.

Utility model content

The utility model object is to provide a kind of staircase prefabricated reinforced concrete fire barrier structure, solves the prefabricated fire barrier cost of current high residential building scissors ladder problem high, easy to crack.

In order to realize above-mentioned task, the utility model adopts following technical solution: a kind of staircase prefabricated reinforced concrete fire barrier structure, and described structure is made up of prefabricated reinforced concrete fire barrier, precast concrete stair, staircase half space beam and connector; Both sides, described prefabricated reinforced concrete fire barrier top have dividing plate to choose ear, and dividing plate is chosen and in ear, is covered with one deck and chooses ear reinforcing bar, and the end face of staircase half space beam chosen ear-hang and be located at by the dividing plate of described prefabricated reinforced concrete fire barrier by both sides; Prefabricated reinforced concrete fire barrier is fixedly connected with described precast concrete stair by connector.

Further, in described prefabricated reinforced concrete fire barrier, be embedded with dividing plate built-in fitting, built-in hanger and demoulding hanging piece, and be covered with one deck dividing plate reinforcing bar.

Further, in described precast concrete stair, stair built-in fitting is embedded with.

Further, position is mutually corresponding in the horizontal and vertical directions with the stair built-in fitting in described precast concrete stair for the dividing plate built-in fitting in described prefabricated reinforced concrete fire barrier.

Further, described connector is angle cleat, angle cleat and described precast concrete stair joined by bolts.

Further, the concrete material of described prefabricated reinforced concrete fire barrier can be normal concrete, haydite concrete or air entrained concrete.

Compared with prior art, technical advantage of the present utility model specifically has the following aspects:

1, adopt the mode hanging that armored concrete fire barrier is installed, structural stability is good, and power transmission is clear and definite, and decrease reinforcing bar and the concrete amount of precast stair, macroeconomic is good;

2, profile is simple, and common wallboard production line can be utilized to carry out High-efficient Production, and easy to make, cost is low; Need not plaster in precast concrete surface, decrease situ wet operation, reduce cost;

3, lightweight concrete can be adopted to make, from heavy and light, easy for installation. Lightweight concrete can be adopted to make, from heavy and light, easy for installation, be applicable to being applied to design and the construction of the prefabricated fire barrier of high residential building scissors ladder.

Staircase prefabricated reinforced concrete fire barrier of the present utility model structure, have employed the succinct hang of power transmission, has from heavy and light, construct convenient, and structure, decoration integrated advantage, be applicable to the fire barrier of high residential building precast concrete scissors ladder.

Accompanying drawing explanation

Fig. 1 is prefabricated reinforced concrete fire barrier stereogram;

Fig. 2 is prefabricated reinforced concrete fire barrier arrangement of reinforcement schematic diagram;

Fig. 3 is staircase prefabricated reinforced concrete fire barrier assembling structure schematic diagram;

In figure, 1-prefabricated reinforced concrete fire barrier; 2-dividing plate is chosen ear; 3-chooses ear reinforcing bar; 4-dividing plate built-in fitting; 5-built-in hanger; 6-demoulding hanging piece; 7-dividing plate reinforcing bar; 8-precast concrete stair; 9-stair built-in fitting; 10-staircase half space beam; 11-connector.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.

As shown in Figure 1-Figure 3, a kind of staircase prefabricated reinforced concrete fire barrier structure, is made up of prefabricated reinforced concrete fire barrier 1, precast concrete stair 8, staircase half space beam 10 and connector 11; Prefabricated reinforced concrete fire barrier 1 both sides, top have dividing plate to choose ear 2, and dividing plate is chosen and in ear 2, is covered with one deck and chooses ear reinforcing bar 3, and the end face of staircase half space beam 10 chosen ear 2 and be hung on by the dividing plate of prefabricated reinforced concrete fire barrier 1 by both sides; Prefabricated reinforced concrete fire barrier 1 is by angle cleat (connector 11) and described precast concrete stair 8 joined by bolts.

In prefabricated reinforced concrete fire barrier 1, be embedded with dividing plate built-in fitting 4, built-in hanger 5 and demoulding hanging piece 6, and be covered with one deck dividing plate reinforcing bar 7.

Stair built-in fitting 9 is embedded with in precast concrete stair 8. Position is mutually corresponding in the horizontal and vertical directions with the stair built-in fitting 9 in described precast concrete stair 8 for dividing plate built-in fitting 4 in prefabricated reinforced concrete fire barrier 1.

The concrete material of prefabricated reinforced concrete fire barrier 1 can be normal concrete, haydite concrete or air entrained concrete.

A construction for prefabricated reinforced concrete fire barrier structure, comprises the steps:

Step 1, the staircase half space beam 10 of building staircase half space beam 10 or lifting prefabricated make it in place;

Step 2, lifting inner side precast concrete stair 8, make it in place;

Step 3, hoisting prefabricated reinforced concrete fireproof dividing plate 1, the end face of staircase half space beam 10 chosen ear 2 and is hung on by the dividing plate of fire barrier by both sides;

Step 4, with angle cleat, prefabricated reinforced concrete fire barrier 1 is bolted with inner side precast concrete stair 8 together with and adjust position and the perpendicularity of prefabricated reinforced concrete fire barrier 1;

Step 5, lifting outside precast concrete stair 8 also make it in place;

Step 6, with angle cleat, prefabricated reinforced concrete fire barrier 1 is bolted with outside precast concrete stair 8 together with, by fire barrier be fixed on outside precast concrete stair 8 on;

Step 7, finally, plate seam is in the milk and performs fireproof blocking, completes the installation of prefabricated reinforced concrete fire barrier 1.

Claims

1. a staircase prefabricated reinforced concrete fire barrier structure, is characterized in that,

Described structure is made up of prefabricated reinforced concrete fire barrier (1), precast concrete stair (8), staircase half space beam (10) and connector (11); Described prefabricated reinforced concrete fire barrier (1) both sides, top have dividing plate to choose ear (2), dividing plate is chosen and in ear (2), is covered with one deck and chooses ear reinforcing bar (3), and the end face of staircase half space beam (10) chosen ear (2) and be hung on by the dividing plate of described prefabricated reinforced concrete fire barrier (1) by both sides; Prefabricated reinforced concrete fire barrier (1) is fixedly connected with described precast concrete stair (8) by connector (11).

2. fire barrier structure according to claim 1, is characterized in that, be embedded with dividing plate built-in fitting (4), built-in hanger (5) and demoulding hanging piece (6) in described prefabricated reinforced concrete fire barrier (1), and be covered with one deck dividing plate reinforcing bar (7).

3. fire barrier structure according to claim 1, is characterized in that, be embedded with stair built-in fitting (9) in described precast concrete stair (8).

4. the structure of the staircase prefabricated reinforced concrete fire barrier according to Claims 2 or 3, it is characterized in that, position is mutually corresponding in the horizontal and vertical directions with the stair built-in fitting (9) in described precast concrete stair (8) for the dividing plate built-in fitting (4) in described prefabricated reinforced concrete fire barrier (1).

5. prefabricated reinforced concrete fire barrier structure according to claim 1, it is characterized in that, described connector (11) is angle cleat, angle cleat and described precast concrete stair (8) joined by bolts.

6. prefabricated reinforced concrete fire barrier structure according to claim 1, it is characterized in that, the concrete material of described prefabricated reinforced concrete fire barrier (1) can be normal concrete, haydite concrete or air entrained concrete.