Pipe truss high-altitude adjusting device and construction method

Abstract

The invention provides a pipe truss high-altitude adjusting device and a construction method, and belongs to the technical field of steel structure construction. Comprising a supporting frame, the supporting frame comprises an upper cross beam and a lower cross beam which are arranged in the horizontal direction, and the upper cross beam and the lower cross beam are each provided with an adjustable supporting mechanism; the adjustable supporting mechanism comprises a base, a jacking assembly and a bearing. The jacking assembly comprises a driver and a lifting rod. The high-altitude adjustment efficiency and precision of the pipe truss are improved, operation is convenient and easy to control, the operation difficulty is reduced, and the safety of high-altitude operation is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of steel structure construction, and in particular relates to a high-altitude adjustment device and construction method for pipe trusses. Background Art

[0002] Steel structures are widely used in the construction field due to their advantages such as high strength, relatively small mass, good seismic resistance, beautiful appearance, and fast construction speed. Due to their characteristics of large span and large weight of a single component, they are usually installed by on-site assembly and integral hoisting methods. Pipe trusses are a more commonly used structural form in steel structures, which are truss structures formed by welding or bolt connection of steel pipes. In the prior art, after the pipe truss is integrally hoisted to a high altitude, a towing rope is required to adjust the position of the overall component. This method often requires multiple people to cooperate in the operation, not only with poor stability, low construction efficiency, but also high manual operation difficulty and low adjustment accuracy, increasing the high-altitude operation risk and construction cost of pipe truss installation. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a high-altitude adjustment device and construction method for pipe trusses, which solve the problem that it is difficult to efficiently and accurately adjust the height of the pipe truss at high altitude, reduce the operation difficulty, and improve the installation efficiency and operation safety of the pipe truss.

[0004] The technical solution adopted by the present invention is: a high-altitude adjustment device for pipe trusses, including a support frame, the support frame includes an upper cross beam and a lower cross beam arranged horizontally, the upper cross beam is provided with an adjustable support mechanism for supporting the upper chord of the pipe truss, and the lower cross beam is provided with the adjustable support mechanism for supporting the lower chord of the pipe truss; the adjustable support mechanism includes a jacking component for adjusting the height of the pipe truss.

[0005] Further, the adjustable support mechanism further includes a base and a supporting seat, the base is detachably arranged on the upper cross beam and the lower cross beam; the jacking component is arranged on the base and includes a driver and a vertically arranged lifting rod; the supporting seat is arranged at the top of the lifting rod and has a supporting part matching with the upper chord and the lower chord.

[0006] Further, the center of the supporting part in the vertical direction coincides with the axis of the lifting rod.

[0007] Further, the axis of the supporting part in the horizontal direction is perpendicular to the upper cross beam and the lower cross beam.

[0008] Further, the upper cross beam and the lower cross beam are both provided with a plurality of installation positions, and the adjustable support mechanism can be selectively fixed at different installation positions.

[0009] Further, the upper cross beam and the lower cross beam are arranged in parallel up and down to support both ends of the pipe truss.

[0010] Further, there are two upper cross beams, and a plurality of lower cross beams are arranged at intervals.

[0011] Further, the adjustable support mechanism further includes a housing, the driver is arranged inside the housing, and the lifting rod movably passes through the housing.

[0012] Further, the driver is provided with a hand crank for adjusting the height of the lifting rod; an operation opening is provided at a position of the housing corresponding to the hand crank.

[0013] A construction method for high-altitude adjustment of a pipe truss, using the pipe truss high-altitude adjustment device as described above, includes the following steps:

[0014] Manufacture a support frame according to the shape and position of the pipe truss to be installed;

[0015] Fix the adjustable support mechanism to the support frame;

[0016] Adjust the height of the supporting part so that the relative positions between the supporting parts are the same as the relative positions of the upper chord and the lower chord of the pipe truss;

[0017] Place the pipe truss on the supporting part;

[0018] Adjust the height of the supporting part so that the height of the pipe truss meets the design requirements.

[0019] The advantages and positive effects of the present invention are:

[0020] (1) The pipe truss high-altitude adjustment device provided by the present invention includes a support frame and an adjustable support mechanism; the support frame includes an upper cross beam and a lower cross beam; the adjustable support mechanism includes a jacking assembly, a supporting seat and a base, and the jacking assembly includes a driver and a lifting rod. By operating the driver, the supporting seat can be driven to adjust the height. When in use, the pipe truss is placed on the supporting seat, and the driver is operated as needed to realize the adjustment of the height of the pipe truss. Compared with the prior art in which a towing rope is used for adjustment, the efficiency and accuracy of the high-altitude adjustment of the pipe truss are improved, the operation is convenient and easy to control, the operation difficulty is reduced, and the safety of high-altitude operation is improved;

[0021] (2) The support frame in the present application includes an upper cross beam and a lower cross beam. The upper cross beam is used to support both ends of the pipe truss, and the lower cross beam is used to support the middle part of the pipe truss or support both ends and the middle part of the pipe truss at the same time; the overall support frame has good rigidity and stability, can be flexibly arranged according to needs, can better adapt to different working space conditions, and can bear greater loads;

[0022] (3) The adjustable support mechanism in this application is fixed to the upper crossbeam and the lower crossbeam in a detachable manner, and can be installed at different positions on the upper crossbeam and the lower crossbeam as required, matching pipe trusses of different specifications, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a specific embodiment of the present invention;

[0024] Figure 2 is a schematic structural diagram of the height adjustment mechanism of a specific embodiment of the present invention;

[0025] Figure 3 is a top view of the height adjustment mechanism of a specific embodiment of the present invention.

[0026] In the figure:

[0027] 1, support frame; 11, upper crossbeam; 12, lower crossbeam; 2, adjustable support mechanism; 21, supporting seat; 22, jacking assembly; 221, lifting rod; 222, hand crank; 23, base; 24, housing; 25, strengthening member; 3, upper chord; 4, lower chord. SPECIFIC EMBODIMENTS

[0028] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] The present invention provides a high-altitude adjustment device for pipe trusses, which is used to solve the problem that it is difficult to efficiently and accurately adjust the height of pipe trusses after being hoisted to high altitudes, reduces the operation difficulty, improves the installation efficiency of pipe trusses, and is beneficial to ensuring the safety of high-altitude operations.

[0030] As Figures 1 to 3As shown in the figure, an embodiment of the present application provides a high-altitude adjustment device for a pipe truss, which includes a support frame 1. The support frame 1 includes an upper cross beam 11 and a lower cross beam 12 arranged horizontally. The upper cross beam 11 is provided with an adjustable support mechanism 2 for supporting the upper chord 3 of the pipe truss, and the lower cross beam 12 is provided with an adjustable support mechanism 2 for supporting the lower chord 4 of the pipe truss. The adjustable support mechanism 2 includes a jacking assembly 22 for adjusting the height of the pipe truss. The above support frame 1 is arranged below the intended installation position of the pipe truss. The pipe truss in the present application can be a regular triangular truss structure, an inverted triangular truss structure or other structural forms. Among them, both the regular triangular truss structure and the inverted triangular truss structure include an upper chord 3, a lower chord 4 and web members. There are three upper chords 3 and lower chords 4 in total, which are arranged in parallel to form a spatial triangular distribution, and the web members are connected between the three. According to the structural characteristics of the pipe truss, the position and height of the adjustable support mechanism 2 on the upper cross beam 11 and the lower cross beam 12 can match the structure of the pipe truss and the positional relationship between the upper chord 3 and the lower chord 4. When the device is in use, the pipe truss can be in full contact with the adjustable support mechanism 2. The adjustable support mechanism 2 has sufficient stability and stiffness to provide stable support for the pipe truss. By adjusting any one of the adjustable support mechanisms 2, the height of the upper chord 3 or the lower chord 4 located on the adjustable support mechanism 2 can be adjusted, thereby adjusting the overall posture of the pipe truss. It is also possible to synchronously adjust multiple adjustable support mechanisms 2 and adjust the overall height of the pipe truss after the posture of the pipe truss meets the requirements. This structure is simple and reasonable, easy to operate, and has good adjustment accuracy and safety.

[0031] Further, as Figure 1 shown, the above support frame 1 further includes columns. The upper cross beam 11, the lower cross beam 12 and the columns are interconnected to form an integral structure, which has good stability and support capacity. Preferably, the support frame 1 is made of H-shaped steel, I-shaped steel or other steel sections, which have high strength and stiffness, can withstand large loads, and are easy to process and manufacture.

[0032] In an embodiment of the present application, as Figure 2 shown, the adjustable support mechanism 2 further includes a base 23 and a supporting seat 21. The base 23 is detachably arranged on the upper cross beam 11 and the lower cross beam 12. The jacking assembly 22 is arranged on the base 23 and includes a driver and a vertically arranged lifting rod 221. The supporting seat 21 is arranged at the top of the lifting rod 221 and has a supporting portion matching the upper chord 3 and the lower chord 4.

[0033] In the above embodiments, the base 23 can be fixed to the upper cross beam 11 or the lower cross beam 12 by means of bolt connection, or can also be connected by clamps or buckles, which is not limited herein; the base 23 is a steel plate with a set thickness, and the shape of the base 23 can be circular or square. When the base 23 is installed on the upper cross beam 11 or the lower cross beam 12, it will not protrude outside the upper cross beam 11 or the lower cross beam 12; preferably, the size of the base 23 is made according to the shape of the upper end surface of the upper cross beam 11 or the lower cross beam 12, so that there is sufficient contact area between the base 23 and the upper cross beam 11 or the lower cross beam 12 to improve its stability and anti-overturning ability.

[0034] In the above embodiments, the driver is fixed on the base 23, and the lifting rod 221 is connected to the driving end of the driver and can rise or fall under the drive of the driver to achieve precise adjustment of the height of the supporting seat 21, so as to achieve the adjustment of the height of the upper chord 3 or the lower chord 4; the driver can be a chain drive, or a rack and pinion drive, or a cylinder, or other lifting devices, which is selected according to actual needs and is not specifically required here. In a preferred embodiment, the driver adopts a jack, and the jack is a commercially available product, the bottom end of which is fixed on the base 23 and is synchronously installed on the upper cross beam 11 or the lower cross beam 12 along with the base 23.

[0035] In the above embodiments, the supporting seat 21 is arranged at the top of the lifting rod 221, and the supporting part has an upward opening to facilitate the upper chord 3 or the lower chord 4 to be fixed on the supporting seat 21 through the opening; the shape of the supporting part is made according to the cross-sectional shape of the upper chord 3 or the lower chord 4; when the cross-section of the upper chord 3 or the lower chord 4 is circular, the supporting part has an arc surface matching the circular shape and size. Preferably, the supporting part has a semi-circular arc surface, which can limit the upper chord 3 or the lower chord 4 while supporting the upper chord 3 or the lower chord 4; when the cross-section of the upper chord 3 or the lower chord 4 is square, the supporting part has a bottom surface and side surfaces matching the square shape and size.

[0036] In a specific embodiment, the supporting seat 21 is made of steel plate, and the lifting rod 221 is made of steel pipe, and the two are fixed by welding.

[0037] Furthermore, in the embodiments of the present application, the center of the supporting part along the vertical direction coincides with the axis of the lifting rod 221, so that the load transmitted by the upper chord 3 or the lower chord 4 can be transmitted downward along the vertical direction to avoid generating eccentric load and affecting the stability of the overall device.

[0038] Further, in the embodiment of the present application, the axis of the supporting part in the horizontal direction is perpendicular to the upper cross beam 11 and the lower cross beam 12. That is to say, when the pipe truss is placed on the adjustable support mechanism 2, the length direction of the pipe truss is perpendicular to the upper cross beam 11 and the lower cross beam 12, and the length direction of the pipe truss is supported by the cooperation of several groups of upper cross beams 11, lower cross beams 12 and adjustable support mechanisms 2. Compared with the case where the upper cross beam 11 and the lower cross beam 12 are arranged along the length direction of the pipe truss, this technical solution reduces the lengths of the upper cross beam 11 and the lower cross beam 12, which not only facilitates processing and manufacturing, but also makes the arrangement of the upper cross beam 11 and the lower cross beam 12 more flexible and can better adapt to different working space conditions.

[0039] In the above embodiment, a plurality of installation positions are provided on both the upper cross beam 11 and the lower cross beam 12, and the adjustable support mechanism 2 can be selectively fixed at different installation positions, so that the adjustable support mechanism 2 can be installed at different positions on the upper cross beam 11 or the lower cross beam 12 as needed to better meet the space requirements; the relative positions of the adjustable support mechanism 2 can also be adjusted according to the specifications of the pipe truss, so that the adjustable support mechanism 2 can be matched with pipe trusses of different specifications, expanding the application scope of the present application.

[0040] In an alternative technical solution, the upper cross beam 11 and the lower cross beam 12 are arranged in parallel up and down to support both ends of the pipe truss. That is to say, two sets of upper cross beams 11 and lower cross beams 12 are provided, and two corresponding sets of adjustable support mechanisms 2 are also provided, which are respectively supported at both ends of the pipe truss; the distance between the two sets of adjustable support mechanisms 2 is matched with the protruding lengths of the upper chord 3 and the lower chord 4 at both ends of the pipe truss. During installation, first place one end of the pipe truss on a set of supporting seats 21, then move the pipe truss in the direction of the other end, so that the upper chord 3 and the lower chord 4 respectively pass through the other set of supporting seats 21, and then synchronously adjust the two sets of adjustable support mechanisms 2 to complete the precise adjustment of the height of the pipe truss.

[0041] In a specific embodiment, as Figure 1 shown, the pipe truss is an inverted triangular truss structure, including two upper chords 3 and one lower chord 4; each set of adjustable support mechanisms 2 is three, two of the adjustable support mechanisms 2 are fixed on the upper cross beam 11 at a set distance, and the other adjustable support mechanism 1 is arranged on the lower cross beam 12. The horizontal distance between the three adjustable support mechanisms 2 is the same as the horizontal distance between the two upper chords 3 and one lower chord 4 of the pipe truss.

[0042] In another alternative technical solution, there are two upper crossbeams 11 for supporting both ends of the pipe truss; there are multiple lower crossbeams 12 arranged at intervals for supporting the middle part of the pipe truss or simultaneously supporting both ends and the middle part of the pipe truss; preferably, the lower crossbeams 12 are evenly arranged along the length direction of the pipe truss; that is to say, the upper chord 3 is supported by the supporting seats 21 on the two upper crossbeams 11, and the lower chord 4 is supported by the supporting seats 21 on the multiple lower crossbeams 12; compared with the case where both the upper crossbeam 11 and the lower crossbeam 12 are arranged at both ends of the pipe truss, the bearing capacity of the overall device is significantly improved.

[0043] Further, in the embodiments of the present application, as Figure 2 and Figure 3 shown, the adjustable support mechanism 2 further includes a housing 24, the driver is arranged inside the housing 24, and the lifting rod 221 movably passes through the housing 24; by providing the housing 24, protection for the jacking assembly 22 inside it is formed, ensuring the stable operation of the jacking assembly 22 and being not easily affected by the external environment.

[0044] In the above embodiment, the driver is provided with a hand crank 222 for adjusting the height of the lifting rod 221; an operation opening is provided at the position of the housing 24 corresponding to the hand crank 222; preferably, the driver adopts a hand-operated jack, and the lifting rod 221 is adjusted to rise or fall by hand power, with simple operation, flexible and reliable, and it is also easier to perform precise control to ensure the accuracy of adjustment; the above operation opening has a sufficient size to enable construction workers to conveniently turn the hand crank 222;

[0045] Further, to further improve the stability of the adjustable support mechanism on the upper crossbeam 11 and the lower crossbeam 12, a reinforcing member 25 is further provided at the outer bottom of the housing 24, preferably, the reinforcing members 25 are evenly arranged at the bottom of the housing 24 and are in the structure of triangular plates.

[0046] The present application also proposes a construction method for high-altitude adjustment of a pipe truss. By using the pipe truss high-altitude adjustment device proposed by the present application, the efficiency and accuracy of high-altitude adjustment of the pipe truss are improved, the operation is convenient and easy to control, the operation difficulty is reduced, and the safety of high-altitude operation is improved.

[0047] A construction method for high-altitude adjustment of a pipe truss includes the following steps:

[0048] S1. Fabricate the support frame 1 according to the shape and position of the pipe truss to be installed;

[0049] Specifically, it includes installing the support frame 1 below the intended installation position of the pipe truss; there are two upper crossbeams 11 and two or more lower crossbeams 12. The installation heights of the upper crossbeams 11 and the lower crossbeams 12 are set according to the vertical distance between the upper chord 3 and the lower chord 4 of the pipe truss, and the distances between the upper crossbeams 11 and the distances between the lower crossbeams 12 are set according to the length of the pipe truss.

[0050] S2. Fix the adjustable support mechanism 2 to the support frame 1;

[0051] Specifically, when the pipe truss is an inverted triangular truss structure, two adjustable support mechanisms 2 are fixed on the upper crossbeam 11 at a set distance, and another adjustable support frame 1 is arranged on the lower crossbeam 12. The horizontal distances of the three adjustable support mechanisms 2 match the horizontal distances between the two upper chords 3 and one lower chord 4 of the pipe truss; when the pipe truss is an equilateral triangular truss structure, two adjustable support mechanisms 2 are fixed on the lower crossbeam 12 at a set distance, and another adjustable support frame 1 is arranged on the upper crossbeam 11. The horizontal distances of the three adjustable support mechanisms 2 match the horizontal distances between the two upper chords 3 and one lower chord 4 of the pipe truss.

[0052] S3. Adjust the height of the supporting part so that the relative positions between the supporting parts are the same as the relative positions of the upper chord 3 and the lower chord 4 of the pipe truss;

[0053] The purpose of the above technical solution is to initially adjust the height of the supporting part so that the pipe truss can be placed on the adjustable support mechanism 2 and the adjustable support mechanism 2 is in full contact with the pipe truss, avoiding the situation where some adjustable support mechanisms 2 cannot provide support while some other adjustable support mechanisms 2 are overloaded, ensuring that the pipe truss receives uniform and sufficient supporting forces and can be stably fixed on the adjustable support mechanism 2 after being separated from the lifting equipment.

[0054] S4. Place the pipe truss on the supporting part;

[0055] After the pipe truss is assembled on the ground, lifting equipment such as a tower crane can be used to place the pipe truss on the supporting part of the adjustable support mechanism 2.

[0056] S5. Adjust the height of the supporting part so that the height of the pipe truss meets the design requirements.

[0057] Preferably, according to the number of adjustable support mechanisms 2 to be adjusted, the same number of operators are set to synchronously adjust the jacking components 22 in the same direction, so that each part of the pipe truss is lifted or lowered synchronously to meet the designed height requirements.

[0058] The present invention has the following beneficial effects:

[0059] (1) The pipe truss high-altitude adjustment device provided by the present invention includes a support frame and an adjustable support mechanism; the support frame includes an upper cross beam and a lower cross beam; the adjustable support mechanism includes a jacking assembly, a supporting seat and a base, the jacking assembly includes a driver and a lifting rod, and by operating the driver, the supporting seat can be driven to adjust the height. When in use, the pipe truss is placed on the supporting seat, and the driver is operated as needed to achieve the adjustment of the height of the pipe truss. Compared with the prior art that uses a towing rope for adjustment, the efficiency and accuracy of the high-altitude adjustment of the pipe truss are improved, the operation is convenient and easy to control, the operation difficulty is reduced, and the safety of high-altitude operations is enhanced;

[0060] (2) The support frame in this application includes an upper cross beam and a lower cross beam. The upper cross beam is used to support both ends of the pipe truss, and the lower cross beam is used to support the middle of the pipe truss or support both ends and the middle of the pipe truss at the same time; the overall support frame has good stiffness and stability, can be flexibly arranged as needed, can better adapt to different working space conditions, and can bear greater loads;

[0061] (3) The adjustable support mechanism in this application is fixed on the upper cross beam and the lower cross beam in a detachable manner, and can be installed at different positions on the upper cross beam and the lower cross beam as needed, and can match pipe trusses of different specifications, having wide applicability.

[0062] The embodiments of the present invention have been described in detail above, but the above content is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A high altitude adjustment device for a tube truss, characterized in that: It comprises a support frame, which comprises an upper crossbeam and a lower crossbeam arranged in a horizontal direction, wherein the upper crossbeam is provided with an adjustable support mechanism for supporting an upper chord of a tube truss, and the lower crossbeam is provided with the adjustable support mechanism for supporting a lower chord of the tube truss; the adjustable support mechanism comprises a jacking assembly for adjusting the height of the tube truss.

2. The high-altitude adjustment device for a pipe truss according to claim 1 is characterized in that: The adjustable support mechanism also includes a base and a supporting seat, wherein the base is detachably arranged on the upper crossbeam and the lower crossbeam; the lifting assembly is arranged on the base, and includes a driver and a vertically arranged lifting rod; the supporting seat is arranged at the top end of the lifting rod, and has a supporting portion matching the upper chord rod and the lower chord rod.

3. The high altitude adjustment device for the pipe truss according to claim 2 is characterized in that: The center of the supporting portion along the vertical direction coincides with the axis of the lifting rod.

4. The high-altitude adjustment device for a pipe truss according to claim 2 or 3, characterized in that: The axis of the supporting portion along the horizontal direction is perpendicular to the upper crossbeam and the lower crossbeam.

5. The high-altitude adjustment device for a pipe truss according to claim 4 is characterized in that: The upper crossbeam and the lower crossbeam are both provided with a plurality of installation positions, and the adjustable support mechanism can be selectively fixed at different installation positions.

6. The high altitude adjustment device for a pipe truss according to claim 4, characterized in that: The upper cross beam and the lower cross beam are arranged in parallel up and down, and are used to support the two ends of the tube truss.

7. The high-altitude adjustment device for a tube truss according to claim 4 is characterized in that: There are two upper cross beams, and there are multiple lower cross beams arranged at intervals.

8. The high altitude adjustment device for a tube truss according to claim 5, 6 or 7, characterized in that: The adjustable supporting mechanism further comprises a shell, the driver is arranged in the shell, and the lifting rod movably passes through the shell.

9. The high altitude adjustment device for a tube truss according to claim 8, characterized in that: The driver is provided with a hand crank handle for adjusting the height of the lifting rod; and an operating port is provided at a portion of the housing corresponding to the hand crank handle.

10. A method for high-altitude adjustment of a pipe truss, characterized in that: The high-altitude adjustment device for a pipe truss as claimed in any one of claims 1 to 9 comprises the following steps: Make the support frame according to the shape and position of the pipe truss to be installed; fixing the adjustable support mechanism to the support frame; Adjusting the height of the supporting parts so that the relative positions between the supporting parts are the same as the relative positions of the upper chord and the lower chord of the tube truss; placing the tube truss on the supporting portion; The height of the supporting portion is adjusted so that the height of the tube truss meets the design requirements.

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