A soft connection assembled stair

Abstract

The utility model provides a kind of soft rope connection's fabricated stair, including ladder beam structure, stair section and connecting section, ladder beam structure includes two ladder beams, the two ladder beams are respectively located left and right side interval arrangement, and the ladder beam higher in left side is located than the ladder beam in right side;Stair section is set between two ladder beams, stair section is obliquely arranged, and left high right low, the adjacent end of stair section and ladder beam is supported on ladder beam;Gap is left between ladder beam and stair section;Connecting section is set in gap, connecting section is used to connect stair section and ladder beam, the soft rope connection's fabricated stair can not use prefabricated component connection, the precision requirement of connection is lower, construction difficulty is lower, directly set on structural reinforcement, it is convenient to position while after pouring is completed, tensile property and structural strength are higher.

Description

Technical Field

[0001] This utility model relates to prefabricated buildings, and in particular to a prefabricated staircase connected by a soft cable. Background Technology

[0002] The traditional construction industry faces outdated production methods that cannot adapt to the current era's main theme of "green" development. Prefabricated buildings meet the significant needs of my country's new building industrialization and "dual-carbon" strategic goals. Stairs are the easiest prefabricated components to assemble. Traditional prefabricated staircases generally use keyway connections, with keyway holes reserved at the ends of the stair slabs and anchor bolts embedded in the stair beam lugs, thus achieving connection through the keyway.

[0003] Keyway connections require high precision in prefabricated components. If the reserved opening position and the reserved anchor bolt do not correspond, the stair slab needs to be returned to the factory for adjustment or even remade. The error tolerance is relatively low. During construction and hoisting, multi-hole installation is required, which makes construction more difficult. Utility Model Content

[0004] To address the issue of high precision requirements for prefabricated components in the prior art, this invention proposes a prefabricated staircase with soft cable connection.

[0005] The technical solution of this utility model includes a ladder beam structure, a stair section, and a connecting section.

[0006] The ladder beam structure includes two ladder beams, which are respectively located on the left and right sides at intervals, and the ladder beam on the left side is higher than the ladder beam on the right side;

[0007] The stair section is located between two stair beams. The stair section is inclined and is higher on the left and lower on the right. The adjacent ends of the stair section and the stair beams abut against the stair beams.

[0008] A gap is left between the stair beams and the stair section;

[0009] The connecting section is placed within the gap and is used to connect the stair section and the stair beam.

[0010] Preferably, the connecting section includes a ladder beam connecting section and a stair connecting section. The ladder beam connecting section is fixedly connected to the ladder beam, and the stair connecting section is fixedly connected to the left and right ends of the stair section. The ladder beam connecting section and the stair connecting section are detachably connected.

[0011] Preferably, the ladder beam connecting section includes a web reinforcement and a ladder beam section cable ring, wherein the web reinforcement is a steel bar on the steel cage used for casting the ladder beam, and the ladder beam section cable ring is disposed on the web reinforcement;

[0012] The cable rings of the ladder beam section are equipped with connectors for connecting to the staircase connecting section.

[0013] Preferably, the stair connecting section includes a stair section fixing steel bar and a stair section cable ring. The stair section fixing steel bar is fixedly connected to the left and right ends of the stair section, and the stair section cable ring is disposed on the stair section fixing steel bar.

[0014] The stair section has a connector on the cable ring for connecting to the stair beam connection section.

[0015] Preferably, both the ladder beam section cable ring and the stair section cable ring are ring structures, with the ladder beam section cable ring sleeved on the waist reinforcement and the stair section cable ring sleeved on the stair section fixing reinforcement.

[0016] Preferably, the connector includes a fixed reinforcing bar, and the stair section cable ring and the stair beam section cable ring are staggered to form a through-bar hole, and the fixed reinforcing bar is inserted into the through-bar hole.

[0017] Preferably, the gap is filled with a post-cast concrete layer;

[0018] The top of the stair beam is flush with the top of the adjacent end of the stair section, and the top of the subsequently poured concrete layer is flush with the top of the adjacent stair beam.

[0019] Advantages of this utility model:

[0020] 1. No prefabricated components are required for connecting stair sections, which reduces the precision requirements of the connection. At the same time, the lengths of the stair section cable ring 3 and the stair beam section cable ring 4 located outside the wall are easy to adjust, making construction less difficult.

[0021] 2. The stair section cable ring 3 and the stair beam section cable ring 4 are an integrated ring structure with high structural strength. They do not require installation parts and are directly sleeved on the structural steel bars, which facilitates positioning and provides higher tensile strength and structural strength after pouring. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0024] Figure 2 This is a schematic diagram of the exploded structure of Example 1;

[0025] Figure 3 This is an enlarged schematic diagram of point A in Example 1.

[0026] In the diagram, 1 is the ladder beam, 2 is the web reinforcement, 3 is the stair section cable ring, 4 is the ladder beam section cable ring, 5 is the fixed reinforcement, 6 is the post-cast concrete layer, 7 is the stair section, and 8 is the stair section fixed reinforcement. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: This example aims to propose a prefabricated staircase with a soft cable connection.

[0029] according to Figures 1-3 As shown, it includes a stair beam structure, stair section 7, and connecting sections.

[0030] The ladder beam structure includes two ladder beams 1, which are located on the left and right sides at intervals, with the ladder beam 1 on the left side being higher than the ladder beam 1 on the right side.

[0031] The stair section 7 is located between two stair beams 1. The stair section 7 is inclined and is higher on the left and lower on the right. The adjacent ends of the stair section 7 and the stair beams 1 abut against the stair beams 1.

[0032] A gap is left between the stair beam 1 and the stair section 7, and the gap is filled with a post-cast concrete layer 6. The tops of the adjacent ends of the stair beam 1 and the stair section 7 are flush, and the top of the post-cast concrete layer 6 is flush with the top of the adjacent stair beam 1.

[0033] The connecting section is set in the gap and is used to connect the stair section 7 and the stair beam 1. The connecting section includes the stair beam connecting section and the stair connecting section. The stair beam connecting section is fixedly connected to the stair beam 1, and the stair connecting section is fixedly connected to the left and right ends of the stair section 7. The stair beam connecting section and the stair connecting section are detachably connected.

[0034] The stair beam connection section includes a web reinforcement 2 and a stair beam section cable ring 4. The web reinforcement 2 is the reinforcing bar used for casting the stair beam. The stair beam section cable ring 4 is set on the web reinforcement 2. The stair beam section cable ring 4 is equipped with a connector for connecting with the stair connection section. The stair beam section cable ring 4 is a ring structure. In this embodiment, it is a ring-shaped steel stranded rope. The stair beam section cable ring 4 is sleeved on the web reinforcement 2, and the other end extends away from the stair beam.

[0035] The staircase connection section includes a staircase fixing steel bar 8 and a staircase cable ring 3. The staircase fixing steel bar 8 is fixedly connected to the left and right ends of the staircase 7. The staircase cable ring 3 is fixedly connected to the staircase fixing steel bar 8. The staircase cable ring 3 is equipped with a connector for connecting to the stair beam connection section.

[0036] The stair section cable ring 3 is a ring structure. In this embodiment, it is a ring-shaped steel stranded rope. The stair section cable ring 3 is sleeved on the stair section fixing steel bar 8. The fixing steel bar 8 is the main reinforcement of the stair section 7. In the prior art, it is located at the bottom of the stair section 7. The other end of the stair section cable ring 3 extends away from the stair section 7.

[0037] The connector includes a fixed reinforcing bar 5, stair section cable rings 3 and stair beam section cable rings 4 arranged alternately to form a through hole. The fixed reinforcing bar 5 is inserted into the through hole. The stair section cable rings 3 and stair beam section cable rings 4 are arranged alternately, and the annular structures at the ends of the stair section cable rings 3 and stair beam section cable rings 4 are misaligned to form a through hole. After the fixed reinforcing bar 5 is inserted into the through hole, the stair section cable rings 3 and stair beam section cable rings 4 jointly apply tension to the fixed reinforcing bar 5, thereby forming a temporary connection between the stair section cable rings 3 and stair beam section cable rings 4.

[0038] After filling the gap, pour a concrete layer 6, and then pour the stair section cable ring 3, the stair beam section cable ring 4, and the fixing steel bar 5 together into the gap.

[0039] Installation principle: Place the stair section 7 between two stair beams 1, then stagger the stair beam section cable ring 4 and the stair section cable ring 3 located in the same gap, intersecting to form a through hole, and insert the fixing steel bar 5 into the through hole, so that the stair section 7 and the stair beam 1 form a temporary connection.

[0040] Then, a concrete layer 6 is poured into the gap to form a permanent fixation.

[0041] This allows for quick connection of stair section 7 to stair beam 1. Furthermore, the use of stair section cable rings 3 and stair beam cable rings 4 eliminates the need for prefabricated components during connection, reducing the precision requirements. The lengths of stair section cable rings 3 and stair beam cable rings 4 located outside the wall are easily adjustable, lowering construction difficulty. Moreover, since stair section cable rings 3 and stair beam cable rings 4 are integrated ring structures, they possess high structural strength and are easily positioned by being fitted onto reinforcing bars, while also exhibiting strong tensile strength.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A soft connected fabricated stair, characterized in that: The ladder beam structure, the stair section (7) and the connecting section, The ladder beam structure comprises two ladder beams (1) which are arranged at intervals on the left and right sides respectively, and the ladder beam (1) on the left side is higher than the ladder beam (1) on the right side; The stair section (7) is arranged between the two ladder beams (1), and is arranged obliquely with the left side being higher than the right side; the adjacent end of the stair section (7) and the ladder beam (1) abuts against the ladder beam (1); A gap is left between the ladder beam (1) and the stair section (7); The connecting section is arranged in the gap, and is used for connecting the stair section (7) and the ladder beam (1); The connecting section comprises a ladder beam connecting section and a stair connecting section; the ladder beam connecting section is fixedly connected to the ladder beam (1), the stair connecting section is fixedly connected to the left and right ends of the stair section (7), and the ladder beam connecting section and the stair connecting section are detachably connected.

2. A soft connected fabricated stair as claimed in claim 1, wherein: The ladder beam connecting section comprises a waist rib (2) and a ladder beam section grommet (4); the waist rib (2) is a reinforcing bar on a reinforcing cage for pouring the ladder beam, and the ladder beam section grommet (4) is arranged on the waist rib (2); The ladder beam section grommet (4) is provided with a connecting piece for connecting the stair connecting section.

3. A soft connected fabricated stair as claimed in claim 2, wherein: The stair connecting section comprises a stair section fixed reinforcing bar (8) and a stair section grommet (3); the stair section fixed reinforcing bar (8) is fixedly connected to the left and right ends of the stair section (7), and the stair section grommet (3) is arranged on the stair section fixed reinforcing bar (8); The stair section grommet (3) is provided with a connecting piece for connecting the ladder beam connecting section.

4. A soft connected fabricated stair as claimed in claim 3, wherein: The ladder beam section grommet (4) and the stair section grommet (3) are both annular structures; the ladder beam section grommet (4) is sleeved on the waist rib (2), and the stair section grommet (3) is sleeved on the stair section fixed reinforcing bar (8).

5. A soft connected fabricated stair as claimed in claim 4, wherein: The connecting piece comprises a fixed reinforcing bar (5); the stair section grommet (3) and the ladder beam section grommet (4) are staggered to form a reinforcing bar hole, and the fixed reinforcing bar (5) is arranged in the reinforcing bar hole.

6. A soft connected fabricated stair as claimed in any one of claims 1 to 5, wherein: The gap is filled with a post-poured concrete layer (6); The adjacent end of the ladder beam (1) and the stair section (7) is flush with the top of the adjacent ladder beam (1), and the top of the post-poured concrete layer (6) is flush with the top of the adjacent ladder beam (1).

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