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A connection device for a prefabricated staircase, a prefabricated staircase and an installation method thereof

A technology of connection device and installation method, which is applied in the direction of stairs, building materials processing, construction, etc., can solve the problem that the stair section slab cannot meet the seismic force of the diagonal bracing at the same time, and achieve the effect of reducing adverse effects and avoiding shear damage

Active Publication Date: 2020-03-17
CHINA ARCHITECTURE DESIGN & RES GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a connecting device for a prefabricated staircase, a prefabricated staircase and an installation method thereof, which solves the problem that the stair section boards in the prior art cannot simultaneously satisfy the function of releasing the oblique bracing in the direction of the stair and resisting the vertical Earthquake force problem in the direction of stairs

Method used

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  • A connection device for a prefabricated staircase, a prefabricated staircase and an installation method thereof
  • A connection device for a prefabricated staircase, a prefabricated staircase and an installation method thereof
  • A connection device for a prefabricated staircase, a prefabricated staircase and an installation method thereof

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Embodiment 1

[0039] This embodiment provides a connecting device for an assembled staircase, such as Figure 2 to Figure 4 As shown, it includes a bolt 1 , an elastic filling member 2 sleeved on the upper part of the bolt 1 and a nut 3 fixedly connected to the upper end of the bolt 1 , and the shape of the elastic filling member 2 is dumbbell-shaped.

[0040] It should be noted that the so-called dumbbell shape is a cylindrical shape with a diameter at both ends greater than that in the middle, that is to say, the elastic pouring part 2 is a cylindrical shape with two ends larger than the middle.

[0041] When in use, the lower part of the bolt 1 is inserted into the corbel of the prefabricated staircase, and the step plate 4 of the prefabricated staircase is provided with a pouring hole matching the shape of the elastic pouring part 2, and the upper part of the bolt 1 is inserted into the pouring hole , and then inject the elastic pouring material into the pouring hole to form the elastic...

Embodiment 2

[0049] This embodiment provides a kind of prefabricated staircase, such as Figure 5 to Figure 7 As shown, it includes a plurality of stair slabs 4 connecting up and down, and the junction of two adjacent stair slabs 4 is provided with a ladder beam 5 and a corbel 7, and the lower end surface of the ladder beam 5 is fixed to the upper end surface of the corbel 7. connection, the corbel 7 protrudes from the side of the ladder beam 5, and the two ends of the ladder plate 4 respectively rest on the part of the adjacent corbel 7 protruding from the ladder beam, and are fixed to the corbel 7 by the connecting device provided in the first embodiment Connection; the lower part of the bolt 1 is located in the corbel 7 , and the upper part of the bolt 1 , the elastic pouring part 2 and the nut 3 are located in the stair plate 4 .

[0050] Compared with the prior art, in the prefabricated staircase provided by this embodiment, the upper and lower ends of the stair plate 4 are connected ...

Embodiment 3

[0058] This embodiment provides a method for installing a prefabricated staircase, including the following steps:

[0059] Step 1: Pouring the ladder beams and corbels, when pouring the corbels, fix the lower part of the bolts in the corbels;

[0060] Step 2: After the ladder beams and corbels reach the design strength, lay a leveling layer with a thickness of 18mm to 22mm on the corbels, usually using 1:1 cement mortar for leveling;

[0061] Step 3: Lift the stair slab to the target position, place it in place accurately, the error control meets the specification requirements, and insert the upper part of the bolt into the pouring hole of the stair slab;

[0062] Step 4: Inject elastic perfusion material into the perfusion hole, and form an elastic perfusion part after the elastic perfusion material is shaped;

[0063] Step 5: Screw the nut on the upper end of the bolt to fill the filling hole;

[0064] Step 6: Leave a gap between the stair slab and the ladder beam. The siz...

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Abstract

The invention discloses a connecting device of an assembled stair, the assembled stair and a mounting method thereof, belongs to the technical field of assembled buildings, and solves the problem thata stair section plate in the prior art cannot simultaneously meet the requirements of releasing a diagonal bracing effect along the stair direction and resisting earthquake force vertical to the stair direction. The connecting device comprises a bolt, an elastic pouring piece sleeved on the upper part of the bolt and a nut fixedly connected with the upper end of the bolt; and the elastic pouringmember is dumbbell-shaped. The connecting device can be used for connecting the assembled stair.

Description

technical field [0001] The invention relates to an assembled building, in particular to a connecting device for an assembled staircase, an assembled staircase and an installation method thereof. Background technique [0002] The prefabricated staircase is a prefabricated component formed by the upper and lower joints of multiple stair sections. It has the characteristics of fast construction speed, convenient operation, and high appearance quality, and can meet the requirements of green buildings for high efficiency, high quality, low cost, and low energy consumption. . [0003] In the prior art, there are mainly the following two connection methods for prefabricated stairs. The first connection method is to reserve round or square holes at both ends of the stair slab, and fill them with ordinary grouting materials (generally not less than 80MPa in strength). Since both ends of the stair slab are filled with high-strength grouting material, it is basically impossible to pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04F11/02E04G21/14
CPCE04F11/02E04G21/14
Inventor 张守峰姚远刘克朱炳寅
Owner CHINA ARCHITECTURE DESIGN & RES GRP CO LTD
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