Roof truss rotating installation method for steel structure house

Abstract

The application discloses a roof truss rotating installation method of a steel structure house, which comprises the following steps: 1) setting slide rails on the beams at the top of the two sides of a roof truss main body; 2) setting a pulley on the bottom crossbar of a roof truss, and fixing a roof truss support at the two ends of the bottom crossbar; 3) hoisting the roof truss to the beams at the top of the two sides of the roof truss main body, and making the pulley be located on the slide rails; 4) pulling the roof truss through a traction rope, and then controlling the traction rope to make the traction rope pull and rotate the roof truss; 5) jacking up the roof truss through a jack, then removing the pulley, and making the roof truss support fall to the set position of the beam; 6) finally, fixedly connecting the roof truss support and the beam; and 7) repeating steps 4) to 6) until the installation of all the roof trusses is completed. The application can make the installation of the roof truss more convenient, has good stability in the installation process, is safer, and can effectively improve construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a method for rotating and installing the roof truss of a steel structure house. Background Technology

[0002] In the construction of steel-structured houses and factories, especially factories, the main roof truss is usually erected first, and then the roof is built on the beams at the top of the truss. To improve the overall construction efficiency, the roofs of steel-structured houses mostly use a roof truss and roof cover structure. The roof truss is pre-assembled on-site or in the factory and then hoisted using cranes. However, when the building is deep, the crane cannot enter the roof truss, which causes great trouble for the installation of the roof truss.

[0003] To address this issue, a sliding installation method for roof trusses has been designed. This method involves using a crane to lift the roof truss above the beam, then connecting it to the beam via pulleys or other sliding mechanisms. The roof truss is then moved along the beam to a designated position. This effectively avoids the problem of cranes being unable to access the building interior. However, because the roof truss is a sheet-like structure, it needs to be secured to the sliding mechanism during connection, a complex and slow process. Furthermore, during movement, especially when the roof truss's center of gravity is high, it is prone to tipping over, resulting in poor stability during construction, significant safety hazards, and reduced building construction efficiency. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the purpose of this invention is to provide a method for rotating and installing roof trusses of steel structure houses, which makes the installation of roof trusses more convenient, and the installation process has good stability and safety, and can effectively improve construction efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a method for rotating and installing the roof truss of a steel structure house, characterized by comprising the following steps: 1) Install sliding rails along the length of the beams at the top of both sides of the main roof truss; 2) Install pulleys at both ends of the bottom horizontal bar of the roof truss, corresponding to the positions of the slide rails. At the same time, fix a roof truss support on the lower side of both ends of the bottom horizontal bar. 3) Use a crane to lift the bottom crossbar of the roof truss so that the roof truss is in an inverted state. Then lift the roof truss onto the beams at the top of both sides of the main body of the roof truss and place the pulleys on the slide rails. Repeat this step to lift several roof trusses onto the beams and distribute them side by side at one end of the beams. 4) Pull the roof truss near the other end of the beam with the traction rope until it moves to the set position; then control the traction direction of the traction rope to make the traction rope pull the roof truss to rotate, so that the roof truss is positioned directly above the beam. 5) Lift the bottom crossbar of the roof truss using jacks, then remove the pulleys, and then gradually release the jacks so that the roof truss supports at both ends of the bottom crossbar of the roof truss fall to the set position of the beam. 6) Finally, fix the roof truss supports to the beams to complete the installation of the roof truss; 7) Repeat steps 4)-6) until all roof trusses are installed.

[0006] Furthermore, rubber pads are installed on the beams at the installation positions corresponding to the roof trusses, with the roof truss supports located on the upper side of the rubber pads.

[0007] Furthermore, the roof truss is formed by welding steel pipes.

[0008] Furthermore, it also includes a traction system, which includes a traction device and a pulley mechanism. The pulley mechanism includes a pulley frame and pulleys mounted on the pulley frame. The pulleys are located directly above the main body of the roof truss, and the pulley frame is movable along the length of the beam. The traction device is located outside the main body of the roof truss and at one end of the main body of the roof truss that is adjacent to the roof truss. One end of the traction rope is connected to the traction device, and the other end passes around the pulley for connection to the roof truss.

[0009] Furthermore, the pulley frame is a gantry frame, with its two columns located on both sides of the roof truss body, and pulleys are provided at the lower ends of the columns.

[0010] Furthermore, the traction device includes a mobile traction device and a tilting traction device, wherein the mobile traction device is connected to a mobile traction rope, and the tilting traction device is connected to a tilting traction rope; one end of the mobile traction rope is connected to the mobile traction device, and the other end passes over a pulley and is connected to the bottom crossbar of the roof truss; one end of the tilting traction rope is connected to the tilting traction device, and the other end passes over a pulley and is connected to the top of the roof truss.

[0011] Further, in step 4), first move the pulley frame so that the pulley is directly above the set installation position of the roof truss to be installed; then connect the moving traction rope and the flipping traction rope to the corresponding position of the roof truss; then start the moving traction device to pull the roof truss to the set installation position through the moving traction rope; finally start the flipping traction device to drive the roof truss to rotate around the axis of the pulley through the flipping traction rope until the roof truss is placed on the beam.

[0012] Furthermore, there are two movable traction ropes located on both sides of the flipping traction rope. The ends of the two movable traction ropes away from the movable traction device are respectively connected to the two ends of the bottom crossbar of the roof truss, and the end of the flipping traction rope away from the flipping traction device is connected to the middle of the roof truss.

[0013] Furthermore, the traction device is an electric winch or a manual winch.

[0014] Furthermore, the traction rope is made of steel wire rope or synthetic fiber rope.

[0015] Compared with the prior art, the present invention has the following advantages: 1. Improved installation efficiency: By using a sliding rail and pulley system, the roof truss can be quickly positioned and moved directly above the beam, greatly reducing installation time and labor requirements.

[0016] 2. Enhanced safety: The inverted installation of the roof truss and the rotation mechanism controlled by traction ropes reduce the risk of the roof truss overturning during installation, thus improving the safety of the construction process.

[0017] 3. Reduced reliance on large equipment: Traditional methods may require multiple large cranes to work together, while this invention reduces reliance on large hoisting equipment and lowers construction costs by using slide rails and pulleys.

[0018] 4. High adaptability: This method is applicable to steel structure houses of different lengths and widths, and is especially suitable for places with limited space, such as long-distance factories and warehouses.

[0019] 5. Easy to operate: Throughout the installation process, the position and angle of the roof truss can be precisely adjusted by controlling the traction rope. The operation is simple and easy to learn, reducing the reliance on professional operating skills.

[0020] 6. Good structural stability: Rubber pads are installed at the installation locations of the roof trusses, which increases the stability and shock absorption capacity of the structure and extends the service life of the building.

[0021] 7. Strong environmental adaptability: The installation method of this invention reduces noise and dust during construction, making it more environmentally friendly and suitable for construction in cities or areas where environmental impact needs to be controlled.

[0022] 8. Cost-effectiveness: By optimizing the construction process and reducing the need for heavy machinery, this invention can significantly reduce construction costs while increasing construction speed, thereby improving the overall cost-effectiveness of the project. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure for installing an inverted beam on an inverted roof truss; Figure 2for Figure 1 Side view; Figure 3 for Figure 1 The front view; Figure 4 This is a front view of the structure after the roof truss has been installed.

[0024] In the diagram: 1—beam, 2—slide rail, 3—roof truss, 4—pulley, 5—roof truss support, 6—traction rope, 7—rubber pad. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Example: See Figures 1 to 4 A method for rotating and installing the roof truss of a steel structure house includes the following steps: 1) Install slide rails 2 along the length of the beams 1 at the top of both sides of the main roof truss.

[0027] 2) At both ends of the bottom crossbar of the roof truss 3, pulleys 4 are installed at the positions corresponding to the slide rails 2. At the same time, a roof truss support 5 is fixed on the lower side of both ends of the bottom crossbar. The roof truss 3 is formed by welding steel pipes, and both ends of the bottom crossbar of the roof truss 3 protrude from the roof truss 3.

[0028] 3) Use a crane to lift the bottom crossbar of the roof truss 3 so that the roof truss 3 is in an inverted state. Then lift the roof truss 3 onto the beams 1 at the top of both sides of the main body of the roof truss and place the pulleys 4 on the slide rails 2. Repeat this step to lift several roof trusses 3 onto the beams 1 and distribute them side by side at one end of the beams 1.

[0029] 4) Pull the roof truss 3 near the other end of beam 1 using the traction rope 6 until it moves to the set position; then control the traction direction of the traction rope 6 to make the traction rope 6 pull the roof truss 3 to rotate, so that the roof truss 3 is positioned directly above beam 1. The traction rope 6 is made of steel wire rope or synthetic fiber rope; it has high strength, strong wear resistance, can withstand greater weight, and reduces elongation.

[0030] This step also includes a traction system, which comprises a traction device and a pulley mechanism 4. The pulley mechanism 4 includes a pulley frame 4 and pulleys 4 mounted on the frame 4. The pulleys 4 are located directly above the main roof truss structure, and the frame 4 is movable along the length of beam 1. In one embodiment, the pulley frame 4 is a gantry frame with two columns located on either side of the main roof truss structure, and pulleys 4 are located at the lower ends of the columns. The traction device is located outside the main roof truss structure, at one end of the structure closest to the roof truss 3. One end of the traction rope 6 is connected to the traction device, and the other end passes over the pulleys 4 to connect to the roof truss 3. In practice, the traction device can be an electric winch or a manual winch; an electric winch provides more stable and controllable traction, suitable for heavy or precise operations; a manual winch is more convenient for the installation and use of lightweight roof trusses 3 and is less expensive.

[0031] Preferably, the traction device includes a mobile traction device and a tilting traction device, wherein the mobile traction device is connected to a mobile traction rope 6, and the tilting traction device is connected to the tilting traction rope 6. One end of the mobile traction rope 6 is connected to the mobile traction device, and the other end passes over the pulley 4 and is connected to the bottom crossbar of the roof truss 3. One end of the tilting traction rope 6 is connected to the tilting traction device, and the other end passes over the pulley 4 and is connected to the top of the roof truss 3.

[0032] In the specific operation process, first move pulley 4 so that pulley 4 is directly above the set installation position of the roof truss 3 to be installed; then connect the moving traction rope 6 and the flipping traction rope 6 to the corresponding positions of the roof truss 3; then start the moving traction device to pull the roof truss 3 to the set installation position through the moving traction rope 6; finally start the flipping traction device to drive the roof truss 3 to rotate around the axis of pulley 4 through the flipping traction rope 6 until the roof truss 3 is placed on the beam 1.

[0033] As an optimization, there are two movable traction ropes 6, located on both sides of the flipping traction rope 6. The ends of the two movable traction ropes 6 away from the movable traction device are respectively connected to the two ends of the bottom crossbar of the roof truss 3, and the end of the flipping traction rope 6 away from the flipping traction device is connected to the middle of the roof truss 3.

[0034] 5) Lift the bottom crossbar of the roof truss 3 with a jack, then remove the pulley 4, and then gradually release the jack so that the roof truss supports 5 at both ends of the bottom crossbar of the roof truss 3 fall to the set position of the beam 1; on the beam 1, a rubber pad 7 is set at the installation position of the roof truss 3, and the roof truss support 5 is located on the upper side of the rubber pad 7.

[0035] 6) Finally, fix the roof truss support 5 to the beam 1 to complete the installation of the roof truss 3; 7) Repeat steps 4)-6) until all roof trusses 3 are installed.

[0036] This invention utilizes a system of slide rails 2 and pulleys 4, allowing for rapid positioning and movement of the roof truss 3 directly above the beam 1, significantly reducing installation time and labor requirements. The inverted installation of the roof truss 3 and the rotation mechanism controlled by the traction rope 6 reduce the risk of overturning during installation, improving construction safety. The use of slide rails 2 and pulleys 4 reduces reliance on large hoisting equipment, lowering construction costs. This method is applicable to steel structure buildings of varying lengths and widths, particularly suitable for space-constrained locations such as long-distance factories and warehouses. Throughout the installation process, the position and angle of the roof truss 3 can be precisely adjusted via the traction rope 6, making operation simple and easy to learn, reducing reliance on specialized operational skills. Rubber pads 7 are placed at the installation location of the roof truss 3, increasing structural stability and shock absorption, and extending the building's lifespan. The installation method of this invention reduces noise and dust during construction, making it more environmentally friendly and suitable for construction in urban areas or areas requiring environmental impact control. By optimizing the construction process and reducing the need for heavy machinery, this invention significantly reduces construction costs while increasing construction speed, thereby improving the overall cost-effectiveness of the project.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of the present invention without departing from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A method for rotating and installing the roof truss of a steel structure house, characterized in that: Includes the following steps: 1) Install sliding rails along the length of the beams at the top of both sides of the main roof truss; 2) Install pulleys at both ends of the bottom horizontal bar of the roof truss, corresponding to the positions of the slide rails. At the same time, fix a roof truss support on the lower side of both ends of the bottom horizontal bar. 3) Use a crane to lift the bottom crossbar of the roof truss so that the roof truss is in an inverted state. Then lift the roof truss onto the beams at the top of both sides of the main body of the roof truss, and place the pulleys at both ends of the bottom crossbar on the slide rails. Repeat this step to lift several roof trusses onto the beams and distribute them side by side at one end of the beam. 4) Pull the roof truss near the other end of the beam with the traction rope until it moves to the set position; then control the traction direction of the traction rope to make the traction rope pull the roof truss to rotate, so that the roof truss is positioned directly above the beam. 5) Lift the bottom crossbar of the roof truss using jacks, then remove the pulleys at both ends of the bottom crossbar, and then gradually release the jacks so that the roof truss supports at both ends of the bottom crossbar of the roof truss fall to the set position of the beam. 6) Finally, fix the roof truss supports to the beams to complete the installation of the roof truss; 7) Repeat steps 4) through 6) until all roof trusses are installed; It also includes a traction system, which comprises a traction device and a pulley mechanism. The pulley mechanism includes a pulley frame and pulleys mounted on the pulley frame. The pulleys on the pulley frame are located directly above the main body of the roof truss, and the pulley frame is movable along the length of the beam. The traction device is located outside the main body of the roof truss and at one end of the main body of the roof truss, adjacent to the roof truss. One end of the traction rope is connected to the traction device, and the other end passes over the pulleys on the pulley frame for connection to the roof truss. The pulley frame is a gantry frame with two columns located on both sides of the main body of the roof truss, and pulleys are provided at the lower ends of the columns. The traction device includes a mobile traction device and a tilting traction device. The mobile traction device is connected to a mobile traction rope, and the tilting traction device is connected to a tilting traction rope. One end of the mobile traction rope is connected to the mobile traction device, and the other end passes over a pulley on a pulley frame and is connected to the bottom crossbar of the roof truss. One end of the tilting traction rope is connected to the tilting traction device, and the other end passes over a pulley on a pulley frame and is connected to the top of the roof truss.

2. The method for rotating and installing the roof truss of a steel structure house according to claim 1, characterized in that: Rubber pads are installed on the beams at the installation positions corresponding to the roof trusses, and the roof truss supports are located on the upper side of the rubber pads.

3. The method for rotating and installing the roof truss of a steel structure house according to claim 1, characterized in that: The roof truss is formed by welding steel pipes.

4. The method for rotating and installing the roof truss of a steel structure house according to claim 1, characterized in that: In step 4), first move the pulley frame so that the pulleys on the pulley frame are directly above the set installation position of the roof truss to be installed; then connect the moving traction rope and the flipping traction rope to the corresponding positions of the roof truss; then start the moving traction device to pull the roof truss to the set installation position through the moving traction rope; finally start the flipping traction device to drive the roof truss to rotate around the axis of the pulleys at both ends of the bottom crossbar through the flipping traction rope until the roof truss is placed on the beam.

5. The method for rotating and installing the roof truss of a steel structure house according to claim 1, characterized in that: The movable traction rope consists of two ropes located on both sides of the flipping traction rope. The ends of the two movable traction ropes furthest from the movable traction device are connected to the two ends of the bottom crossbar of the roof truss, respectively. The end of the flipping traction rope furthest from the flipping traction device is connected to the middle of the roof truss.

6. The method for rotating and installing the roof truss of a steel structure house according to claim 1, characterized in that: The traction equipment is either an electric winch or a manual winch.

7. The method for rotating and installing the roof truss of a steel structure house according to claim 1, characterized in that: The traction rope is made of steel wire rope or synthetic fiber rope.

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