A method for installing steel structure stairs

Abstract

The present invention discloses a method for installing a steel structure staircase, comprising: building an operating platform, installing a lifting mechanism 1 on one side of the operating platform, the pull rope of the lifting mechanism 1 being connected to the staircase structure 1 below, the lifting mechanism 1 pulling the staircase structure 1 to a preset position 1, and fixing the staircase structure 1; raising the operating platform, installing a lifting mechanism 2 at one end of the staircase structure 1, the lifting mechanism 1 and the lifting mechanism 2 lifting the staircase structure 2 to a preset position 2, and fixing the staircase structure 1 via the staircase structure 2; repeating the above steps to install subsequent staircase structures; after fixing the last section of the staircase structure, removing the operating platform and the lifting mechanism. Through the installation steps of the steel structure staircase, the installation of the steel staircase structure can be achieved in a narrow space, solving the problem that the construction progress cannot be advanced due to the inability of large lifting equipment to enter the site. At the same time, the operating steps of the present invention are simple, easy to operate, and more suitable for promotion in the process of house renovation.

Description

Technical Field

[0001] The invention relates to the technical field of buildings, and in particular to a method for installing a steel structure staircase. Background Art

[0002] In house renovation projects, some renovation projects require adding steel structure stairs in the building. However, due to the narrow space in the building, large lifting equipment such as large cranes cannot enter the construction site, resulting in difficulties in the stair renovation construction and cannot be effectively promoted.

[0003] Existing Chinese patent CN113216536B discloses a steel structure building staircase system and its construction method, which includes a prefabricated staircase and a crossbeam disposed at the upper and lower ends of the prefabricated staircase. The crossbeam includes an upper support plate, a lower support plate, and a partition plate disposed vertically between the upper and lower support plates. The width of the upper support plate is greater than that of the lower support plate. The upper and lower support plates are each provided with a plurality of notches. The side walls of the partition plate are provided with a connecting plate, and the upper and lower ends of the connecting plate are connected to the upper and lower support plates, respectively. This application has the effect of reducing material waste of the crossbeam and reducing the weight of the building. However, this patent does not provide an effective solution for how to install a steel structure staircase in a narrow space. Summary of the Invention

[0004] Technical Solution

[0005] To solve the above problems, the present invention provides the following technical solutions: a method for installing a steel structure staircase, the installation steps are as follows:

[0006] S1, constructing an operating platform, installing a lifting mechanism 1 on one side of the operating platform, wherein a pull rope of the lifting mechanism 1 is connected to a staircase structure 1 below, and the lifting mechanism 1 pulls the staircase structure 1 to a preset position 1, thereby fixing the staircase structure 1;

[0007] S2, raising the operating platform, installing the second lifting mechanism at one end of the first staircase structure, the first lifting mechanism and the second lifting mechanism lifting both ends of the inverted second staircase structure, adjusting the second lifting mechanism from the right side to the left side of the first staircase structure, and lifting the second staircase structure to the second preset position, and fixing the staircase structure to the first staircase structure via the second staircase structure;

[0008] S3, raising the operating platform, repeating the above steps, and installing subsequent staircase structures;

[0009] S4, after fixing the last section of the staircase structure, dismantling the operating platform and the lifting mechanism.

[0010] As a further description of the above technical solution, the lifting mechanism 1 and the lifting mechanism 2 are both lifting columns and hand hoists, and one end of the hand hoist is hung on the lifting ear at the upper end of the lifting column.

[0011] As a further description of the above technical solution, the hand hoist is connected to an external winch.

[0012] As a further description of the above technical solution, the operating platform is used to install the lifting mechanism on a stair platform beam or a concrete beam.

[0013] As a further description of the above technical solution, the preset position 1 is that one end of the stair structure 1 is in a horizontal state and the bottom of the other end of the stair structure is in contact with the ground;

[0014] The preset position 2 is that the lower end of the second stair structure and the upper end of the first stair structure are in the same horizontal plane.

[0015] As a further description of the above technical solution, the installation of the staircase structure 1 adopts one of the lifting mechanism and the winch;

[0016] The installation of the second staircase structure adopts two lifting mechanisms;

[0017] The installation of the stair structure three adopts two lifting mechanisms and the winch.

[0018] As a further description of the above technical solution, the lifting capacity of the hand chain hoist is 5t, and the lifting capacity of the winch is 3t;

[0019] The weight of the stair structure 1, the stair structure 2 and the stair structure 3 is no more than 1.1t.

[0020] As a further description of the above technical solution, two lifting ears are installed at each end of the stair structure, and the lifting ears are connected to the hand hoist.

[0021] As a further description of the above technical solution, the hoisting column is H-shaped steel, and the height of the hoisting column is 1.5m.

[0022] As a further description of the above technical solution, when the second stair structure and the third stair structure are installed, the operating platforms are built at both ends.

[0023] Beneficial effects

[0024] Compared with the prior art, the present invention provides a method for installing steel structure stairs, which has the following beneficial effects:

[0025] 1. The present invention can realize the installation and assembly of the steel staircase structure in a small space through the installation steps of the steel structure staircase, which solves the problem that the construction progress cannot be advanced due to the inability of large lifting equipment to enter the site. At the same time, the operation steps of the present invention are simple and easy to operate, and it is more suitable for promotion in the process of house renovation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of a staircase structure of the present invention before installation;

[0027] Figure 2 This is a schematic diagram of the staircase mechanism of the present invention after installation;

[0028] Figure 3 This is a schematic diagram of the second staircase mechanism of the present invention before installation;

[0029] Figure 4 This is a schematic diagram of the second hoisting of the staircase mechanism of the present invention;

[0030] Figure 5 This is a schematic diagram of the staircase structure 1 and staircase structure 2 after installation;

[0031] Figure 6 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the lifting mechanism of the present invention being fixed to a concrete beam;

[0033] Figure 8 This is a schematic diagram of the connection between the hand chain hoist of the present invention and the stair structure.

[0034] In the figure: 1. Operating platform; 2. Lifting mechanism 1; 201. Lifting column; 202. Hand hoist; 3. Staircase structure 1; 4. Lifting mechanism 2; 5. Staircase structure 2; 6. Lifting lug. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figure 1 - Figure 5 The present invention provides an embodiment of a method for installing a steel structure staircase, wherein the installation steps include:

[0037] S1, build operating platform 1, the building platform is a scaffolding platform, the height of the operating platform 1 can be adjusted according to actual needs, refer to Figure 1 and Figure 2 A lifting mechanism 2 is installed on one side of the operating platform 1. The lifting mechanism 2 is fixed on a nearby concrete beam (the concrete beam is not shown). The pull rope of the lifting mechanism 2 is connected to the stair structure 3 below. The specific connection method is that the pull rope at the lower end of the lifting mechanism 2 is connected to the two lifting ears 6 at one end of the stair structure 3. Therefore, by controlling the lifting mechanism 2, one end of the stair structure 3 can be pulled up to make the stair structure reach the preset position 1. The preset position 1 means that the platforms at both ends of the stair structure 3 are parallel to the horizontal plane, and the lower end of the stair structure 3 has reached the installation position marked in advance. At this time, the stair structure 3 can be fixed manually;

[0038] S2, after the stair structure 1 3 is fixed, the operating platform 1 is raised, and another operating platform 1 is built at the other end of the stair structure 1 3, and then the stair structure 2 5 to be assembled is transported to the bottom of the stair structure 1 3, refer to Figure 3 - Figure 5 , install the lifting mechanism 1 2 at one end of the stair structure 1 3 through the building platform, and install the lifting mechanism 2 4 above the other end of the stair structure 1 3 through the building platform on the opposite side, and fix the lifting mechanism 2 4 to the concrete beam, and then connect the lifting mechanism 1 2 and the lifting mechanism 2 4 to the lifting ears 6 at both ends of the stair structure 2 5 respectively, and then the lifting mechanism 1 2 and the lifting mechanism 2 4 lift the two ends of the inverted stair structure 2 5, and adjust the lifting mechanism 2 4 from the right side to the left side of the stair structure 1 3, and the lifting mechanism 1 2 and the lifting mechanism 2 4 lift the stair structure 2 5 to the preset position 2. The specific preset position 2 is that the lower end of the stair structure 2 5 and the upper surface of the high end of the stair structure 1 3 are on the same plane, and the upper end surfaces of both ends of the stair structure 2 5 are horizontal. At this time, the stair structure 2 5 and the stair structure 1 3 are fixed manually, and the fixing method is not limited to welding and fixing by bolts;

[0039] S3, raising the operating platform 1, repeating step S2, installing stair structure 3, and then installing stair structure 4, stair structure 5 or stair structure 6 according to the actual height requirements;

[0040] S4, after fixing the staircase structure three, install the last staircase structure according to the specific situation, remove the operating platform 1 and the lifting mechanism, and the installation of the entire steel structure staircase can be completed.

[0041] According to the above-mentioned installation steps, the installation and assembly of the steel staircase structure can be realized in a small space, which solves the problem that the construction progress cannot be advanced due to the inability of large lifting equipment to enter the site. At the same time, the operation steps of the present invention are simple and easy to operate, and it is more suitable for promotion in the process of house renovation.

[0042] refer to Figure 6 and Figure 8 , lifting mechanism 1 2 and lifting mechanism 2 4 are both lifting columns 201 and hand hoists 202, one end of the hand hoist 202 is suspended on the lifting ear 6 at the upper end of the lifting column 201, and the other end of the hand hoist 202 is connected to the two lifting ears 6 at the end of the stair structure 1 3. By using the hand hoist 202, the stair structure to be assembled can be pulled to the specified height and then fixed. In order to improve the pulling efficiency and reduce the labor workload of the operator, a winch can be used to pull the hand hoist 202. In this application, the lifting capacity of the two hand hoists 202 is 5t, and the lifting capacity of the winch is 3t. The maximum weight of a single stair structure lifted in this application does not exceed 1.1t. Therefore, the above-mentioned hand hoist 202 and winch are fully capable of lifting a single stair structure.

[0043] refer to Figure 6 and Figure 7 The hoisting column 201 is an H-shaped steel with a height of 1.5m, and the hoisting column 201 can be welded to the platform beam of the stair structure, or welded to the embedded parts of the concrete beam on one side, so that the lifting mechanism can be installed in different positions according to the specific installation situation.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for installing a steel structure staircase, characterized in that: The installation steps are: S1, build an operating platform. The building platform is a platform formed by scaffolding. A lifting mechanism 1 is installed on one side of the operating platform. The lifting mechanism 1 is fixed to a nearby concrete beam. The pull rope of the lifting mechanism 1 is connected to the stair structure 1 below. By controlling the lifting mechanism 1, one end of the stair structure 1 is pulled up so that the stair structure reaches a preset position 1. The preset position 1 means that the platforms at both ends of the stair structure 1 are parallel to the horizontal plane, and the lower end of the stair structure 1 has reached the installation position marked in advance. At this time, the stair structure 1 is manually fixed; the operating platform is used to install the lifting mechanism on the concrete beam; S2, after the stair structure 1 is fixed, the operating platform is raised, and another operating platform is built at the other end of the stair structure 1, and the stair structure 2 to be assembled is transported to the bottom of the stair structure 1, and the lifting mechanism 1 is installed on the high end of the stair structure 1 through the building platform, and the lifting mechanism 2 is installed above the other end of the stair structure 1 through the building platform on the opposite side, and the lifting mechanism 2 is fixed to the concrete beam, and then the lifting mechanism 1 and the lifting mechanism 2 are respectively connected to the lifting ears at both ends of the stair structure 2, and then the lifting mechanism 1 and the lifting mechanism 2 are connected to the lifting ears. Mechanism 2 lifts the two ends of the inverted stair structure 2, and the lifting mechanism 1 and the lifting mechanism 2 lift the stair structure 2 to the preset position 2. Specifically, the preset position 2 is that the lower end of the stair structure 2 and the upper surface of the high end of the stair structure 1 are on the same plane, and the upper end surfaces of both ends of the stair structure 2 are horizontal. At this time, the stair structure 2 and the stair structure 1 are manually fixed; the lifting mechanism 1 and the lifting mechanism 2 are both lifting columns and hand chain hoists, one end of the hand chain hoist is suspended on the lifting ear at the upper end of the lifting column; the hand chain hoist is connected to an external winch; S3, raising the operating platform, repeating step S2, and installing subsequent staircase structures; S4, after fixing the last section of the staircase structure, dismantling the operating platform and the lifting mechanism.

2. The method for installing a steel structure staircase according to claim 1, characterized in that: The hoisting column is an H-shaped steel, and the height of the hoisting column is 1.5m.

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