Large-span special-shaped pipe truss multi-point support butt joint temporary support and construction method thereof

Abstract

The application provides a large-span special-shaped pipe truss multi-point support butt joint temporary support and a construction method thereof, and belongs to the field of steel structure construction devices. The problem that a plurality of temporary supports need to be processed according to different circular pipes in the pipe truss splicing process is solved. A corrugated steel plate is installed on the steel frame of the support, a side pipe clamp is installed on the trapezoidal groove of the corrugated steel plate through a ball hinge bolt, and a bottom pipe clamp is installed through a ball hinge bolt, the side pipe clamp and the bottom pipe clamp can rotate around the ball hinge bolt, a sliding block and an ear plate are installed on both sides of the corrugated steel plate, the sliding block is connected with the side pipe clamp through a connecting rod, and a bolt passes through the ear plate and abuts against the sliding block. The pipe clamp position is controlled through the adjusting bolt to adapt to circular pipes with different diameters, the pipe clamp can be processed and produced in a factory and reused at a construction site, the problem that temporary supports need to be processed on site through cutting steel plates for circular pipes with different diameters in the current construction is avoided, the steel consumption in the construction process can be effectively reduced, and the construction workload is reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of steel structure construction device, in particular relates to a large-span special-shaped pipe truss multi-point support butt joint temporary support and its construction method. BACKGROUND

[0002] The special-shaped pipe truss is a kind of space truss structure, with flexible arrangement, large rigidity, small steel consumption, convenient construction and other characteristics, and is widely used in large-span space structures such as airports, exhibition centers, stadiums, railway stations and the like.

[0003] The special-shaped pipe truss construction installation is generally constructed by ground assembly + air hoisting, and there is a lot of high-altitude installation work in the construction process. In order to ensure the construction quality and installation accuracy, the construction personnel generally set up temporary supports and temporary supports for supporting the pipe truss on site, and cooperate with the jacking equipment such as jack to adjust the height of the pipe truss, so as to ensure the accurate positioning before the structure connection, and the temporary support used is cut by the construction personnel on site. In actual engineering, the roof pipe truss is not only large in quantity, but also different in diameter between each truss, and a large number of non-adjustable temporary supports need to be processed according to the supported pipe on the construction site, which increases the workload of the construction site. In addition, the temporary support is generally discarded after being used once, and the repeated use rate is low, which will cause the consumption and waste of steel. SUMMARY

[0004] Therefore, the present application aims to provide a large-span special-shaped pipe truss multi-point support butt joint temporary support and its construction method, so as to solve the problem that a plurality of temporary supports need to be processed according to different pipes during the pipe truss splicing process.

[0005] In order to achieve the above-mentioned purpose, the following technical scheme is adopted: a large-span special-shaped pipe truss multi-point support butt joint temporary support, comprising a steel frame, a corrugated steel plate, two sliding blocks, a plurality of ear plates, a connecting rod, a ball hinge bolt, a bolt, a bottom pipe clamp and a side pipe clamp, the steel frame is provided with the corrugated steel plate, the side pipe clamp and the bottom pipe clamp are installed on the trapezoidal groove of the corrugated steel plate through the ball hinge bolt, the side pipe clamp and the bottom pipe clamp can rotate around the ball hinge bolt, the sliding blocks and the ear plates are installed on both sides of the corrugated steel plate, the sliding blocks are connected with the side pipe clamp through the connecting rod, and the bolt penetrates through the ear plate and abuts against the sliding block.

[0006] Further, the ball hinge bolt comprises a screw rod, a nut and a ball hinge, the ball hinge is installed above the screw rod, and the nut is installed on the outer periphery of the screw rod.

[0007] Further, the length of the screw rod is greater than the thickness of the steel plate, and the diameter of the screw rod matches the bolt hole diameter of the corrugated steel plate.

[0008] Further, the screw rod passes through the screw hole of the corrugated steel plate and is screwed into the nut from above, the bottom surface of the nut is tightly against the top surface of the corrugated steel plate, the ball hinge bolt has one end connected with the bottom pipe clamp through the connecting block, and the connecting block can rotate around the ball hinge of the bolt.

[0009] Further, the corrugated steel plate is integrally stamped and formed, the top surface of both sides of one end of the corrugated steel plate is provided with a trapezoidal groove, the central axis of the trapezoidal groove is aligned with the center of the ear plate, and the bottom and the two side inclined walls of the corrugated steel plate are provided with bolt holes.

[0010] Further, the bottom of the sliding block is provided with a trapezoidal protrusion, the trapezoidal protrusion can be embedded in the trapezoidal groove of the corrugated steel plate and slide along the trapezoidal groove, the size of the trapezoidal groove is larger than that of the trapezoidal protrusion of the sliding block, so that the sliding block is limited to be pulled out and at the same time the sliding block is allowed to slide along the groove.

[0011] Further, the sliding block is integrally formed with the connecting rod, and the free end of the connecting rod is welded to the side pipe clamp.

[0012] Further, the bottom pipe clamp and the side pipe clamp are both made of an arc-shaped steel plate.

[0013] Further, the concave surface of the arc-shaped steel plate is pasted with a rubber pad.

[0014] A construction method of a large-span special-shaped pipe truss multi-point support butt joint temporary support, specifically comprising the following steps:

[0015] (1) process and assemble all parts of the support in the factory, wherein the bottom and the inclined wall of the corrugated steel plate are provided with bolt holes, and the connecting rod and the sliding block are integrally formed;

[0016] (2) weld the corrugated steel plate with the steel frame, weld the ear plate on both sides of the steel frame, push the sliding block into the trapezoidal groove to connect with the corrugated steel plate, weld the free end of the connecting rod with the side pipe clamp, screw the ball hinge bolt into the reserved bolt hole from below the corrugated steel plate, and then screw the nut into the screw rod from above, and then weld the connecting block and the pipe clamp after the concave surface of the connecting block is tightly pasted with the convex surface of the bottom pipe clamp;

[0017] (3) place the support under the pipe to be supported of the pipe truss, and place the bottom pipe clamp between the pipe and the support, and then align the convex surface connecting block of the pipe clamp with the ball hinge of the ball hinge bolt;

[0018] (4) adjust the height of the ball hinge by turning the ball hinge bolt with a wrench, and adjust the angle of the bottom pipe clamp until the ball hinge, the convex surface connecting block of the pipe clamp and the bottom pipe clamp are tightly against each other, and then turn the nut until the bottom surface of the nut is tightly against the top surface of the corrugated steel plate, and the adjustment steps of all the bottom pipe clamps are the same.

[0019] (5) turn the ordinary bolt with a wrench to push the sliding block to move horizontally until the side pipe clamp is tightly against the pipe, and the pipe is completely fixed in the horizontal direction.

[0020] (6), check whether the pipe clamp and the pipe truss round pipe are all in close contact, and confirm that the round pipe is completely fixed before welding connection construction of the pipe truss.

[0021] Compared with the prior art, the large-span special-shaped pipe truss multi-point support butt joint temporary support and the construction method have the beneficial effects that:

[0022] (1), the pipe truss temporary support adjusts the position of the pipe clamp through the adjusting bolt to adapt to round pipes of different diameters, can be processed in a factory and reused on a construction site, avoids the problem that round pipes of different diameters need to be cut on site to process temporary supports in the current construction, can effectively reduce the consumption of steel in the construction process, and reduce the construction workload.

[0023] (2), the pipe truss temporary support sets multiple groups of pipe clamps in different directions for the round pipe, can provide effective constraint for the supported round pipe, limit its movement or rotation, and avoid the phenomenon that the splicing quality is affected by the rolling or movement of the round pipe during the pipe truss butt joint process.

[0024] (3), the pipe clamp can be adjusted in position through the bolt, and then abut against the supported round pipe, the bottom pipe clamp is connected with the bolt through the connecting block and the ball hinge, the direction angle of the pipe clamp can be adjusted, and the best support for the round pipe is realized. At the same time, the support is provided with multiple bottom pipe clamps in the pipe axis direction, and can also provide stable support for the pipe truss with an inclination angle. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings that form a part of this application serve to provide further understanding of the present application, and the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0026] Figure 1 The overall structure of the large-span special-shaped pipe truss multi-point support butt joint temporary support Figure 1 ;

[0027] Figure 2 The overall structure of the large-span special-shaped pipe truss multi-point support butt joint temporary support Figure 2 ;

[0028] Figure 3 The overall structure of the ball hinge bolt

[0029] Figure 4 The slider with trapezoidal protrusions

[0030] Figure 5 The pipe clamp with rubber pads

[0031] Figure 6 Figure for the bottom pipe clamp and ball hinge bolt connection diagram of the present application;

[0032] Figure 7 Figure for the connecting block (inverted) of the present application.

[0033] Figure: 1-steel frame, 2- corrugated steel plate, 3- slider, 4- ear plate, 5- connecting rod, 6- ball hinge bolt, 7- bolt, 8- bottom pipe clamp, 9- side pipe clamp, 10- connecting block, 6-1- screw, 6-2- nut, 6-3 ball hinge. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0035] Reference Figures 1-7 In order to illustrate the present embodiment, a large-span special-shaped pipe truss multi-point support butt joint temporary support is provided, which comprises a steel frame 1, a corrugated steel plate 2, two sliders 3, a plurality of ear plates 4, a connecting rod 5, a ball hinge bolt 6, a bolt 7, a bottom pipe clamp 8 and a side pipe clamp 9. The steel frame 1 is provided with the corrugated steel plate 2. The trapezoidal groove of the corrugated steel plate 2 is provided with the side pipe clamp 9 through the ball hinge bolt 6, and the bottom pipe clamp 8 is also provided through the ball hinge bolt 6. The side pipe clamp 9 and the bottom pipe clamp 8 can rotate around the ball hinge bolt 6. The corrugated steel plate 2 is provided with the slider 3 and the ear plate 4 on both sides. The slider 3 is connected with the side pipe clamp 9 through the connecting rod 5. The bolt 7 penetrates through the ear plate 4 and abuts against the slider 3.

[0036] The bottom pipe clamp 8 and the side pipe clamp 9 are both made of arc-shaped steel plates. The concave surface of the arc-shaped steel plate is pasted with a rubber pad.

[0037] The steel frame 1 is a cuboid frame with a group of top opposite edges removed. A pair of ear plates 4 is respectively welded on the upper part of one end of the frame. The ear plates 4 are provided with bolt holes in the center and the hole positions are aligned. The steel frame 1 is welded with the corrugated steel plate 2, serving as the main body of the support.

[0038] The corrugated steel plate 2 is integrally stamped and formed and welded with the steel frame 1 as a whole, serving as the main body of the temporary support of the pipe truss. The bottom and the two side inclined walls of the corrugated steel plate 2 are provided with bolt holes. The size of the bolt holes is matched with the size of the ball hinge bolt 6, allowing positive tolerance.

[0039] The slider 3 is integrally formed with the connecting rod 5. The free end of the connecting rod 5 is welded with the side pipe clamp 9.

[0040] The ear plate 4 is welded on both sides of the steel frame 1, and the ear plate 4 is provided with bolt holes, the size of the bolt holes is matched with the size of the common bolt 7, and the positive tolerance is allowed; the common bolt 7 penetrates through the ear plate 4, and the end of the bolt 6 is tightly abutted against the sliding block 3.

[0041] The ear plate 4 is provided with bolt holes, and the size of the bolt holes is matched with the common bolt 7; the common bolt 7 is screwed into the ear plate 4, and the tail end is tightly abutted against the sliding block 3.

[0042] The top surface of the corrugated steel plate 2 is provided with a trapezoidal groove on both sides, and the trapezoidal groove is aligned with the center of the ear plate 4; the bottom of the sliding block 3 is processed to be a trapezoidal protrusion matched with the trapezoidal groove of the corrugated steel plate 2; the trapezoidal protrusion is embedded into the groove to be connected with the support body; the size of the trapezoidal groove is slightly larger than the size of the trapezoidal protrusion of the sliding block 3, so that the sliding block 3 is limited to be pulled out and can be allowed to slide along the groove.

[0043] The bolt 6 with a spherical hinge includes a screw rod 6-1, a nut 6-2 and a spherical hinge 6-3; the spherical hinge 6-3 is located at the end of the bolt; the bolt 6 with a spherical hinge penetrates through the bolt hole of the corrugated steel plate 2, and the nut 6-2 is screwed from above; the bottom surface of the nut 6-2 is tightly abutted against the top surface of the corrugated steel plate; one end of the bolt 6 with a spherical hinge is connected with the bottom pipe clamp 8 through the connecting block 10.

[0044] The length of the screw rod 6-1 is greater than the thickness of the steel plate, and the diameter of the screw rod is matched with the size of the bolt hole of the corrugated steel plate 2.

[0045] The bolt 6 with a spherical hinge is connected with the bottom pipe clamp 8 through the connecting block 10; the connecting block 10 can rotate around the spherical hinge 6-3 of the bolt; the nut 6-2 is sleeved into the bolt 6 with a spherical hinge from above the corrugated steel plate 2 after the bolt 6 with a spherical hinge penetrates through the corrugated steel plate 2.

[0046] The construction method of the multi-point support butt joint temporary support of the large-span special-shaped pipe truss is as follows:

[0047] 1. The components of the support (including the steel frame 1, the corrugated steel plate 2, the sliding block 3, the ear plate 4, the connecting rod 5, the bolt 6 with a spherical hinge, the common bolt 7, the bottom pipe clamp 8 and the side pipe clamp 9, and the connecting block 10) are processed and assembled in the factory; the bottom and the inclined wall of the corrugated steel plate 2 are provided with reserved bolt holes, and the connecting rod 5 and the sliding block 3 are integrally formed.

[0048] 2. The corrugated steel plate 2 is welded with the steel frame 1, and the ear plate 4 is welded on both sides of the steel frame 1; the sliding block 5 is pushed into the trapezoidal groove to be connected with the corrugated steel plate; the free end of the connecting rod 5 is welded and connected with the side pipe clamp; the bolt 6 with a spherical hinge is screwed into the reserved bolt hole from below the corrugated steel plate, and the nut 6-2 is sleeved into the bolt with a spherical hinge from above; after the concave surface of the connecting block 10 is tightly abutted against the convex surface of the bottom pipe clamp 8, the connecting block 10 and the pipe clamp are welded and connected;

[0049] 3. Put the support under the lower part of the pipe truss to be supported, and put the bottom pipe clamp 8 between the pipe and the support, and align the pipe clamp convex connecting block 10 with the spherical hinge bolt 6 spherical hinge;

[0050] 4. Turn the spherical hinge bolt 6 with a wrench to adjust the height of the spherical hinge 6-3, and adjust the angle of the bottom pipe clamp 8 until the spherical hinge, the pipe clamp convex connecting block 10, and the bottom pipe clamp 8 are all tightly against each other, then turn the nut 6-2 until the bottom surface of the nut is tightly against the top surface of the corrugated steel sheet 2, and the adjustment steps of each bottom pipe clamp 8 are the same.

[0051] 5. Turn the ordinary bolt 3 with a wrench to push the sliding block 5 to move horizontally until the side pipe clamp 9 is tightly against the pipe, and the pipe is completely fixed in the horizontal direction.

[0052] 6. Check whether the pipe clamp and the pipe truss pipe are tightly against each other, and confirm that the pipe is completely fixed before carrying out the welding connection construction of the pipe truss.

[0053] The above disclosed embodiments of the present application are only used to help explain the present application. The embodiments do not describe all the details, nor limit the present application to only the specific embodiments described. According to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application.

Claims

1. A large-span special-shaped tubular truss multi-point support butt joint temporary support, characterized in that: The utility model provides a kind of steel support, including steel frame (1), corrugated steel plate (2), two sliders (3), several ear plates (4), connecting rod (5), bolt with ball hinge (6), bolt (7), bottom pipe clamp (8) and side pipe clamp (9), corrugated steel plate (2) is installed on the steel frame (1), side pipe clamp (9) is installed in the trapezoidal recess of corrugated steel plate (2) by bolt with ball hinge (6), while bottom pipe clamp (8) is installed by bolt with ball hinge (6), side pipe clamp (9) and bottom pipe clamp (8) can rotate around bolt with ball hinge (6), slider (3) and ear plate (4) are installed on the both sides of corrugated steel plate (2), slider (3) is connected with side pipe clamp (9) by connecting rod (5), bolt (7) passes through ear plate (4) and is pressed against slider (3); The bolt with ball hinge (6) includes screw rod (6-1), nut (6-2) and ball hinge (6-3), the upper of screw rod (6-1) is installed with ball hinge (6-3), the outer periphery of screw rod (6-1) is installed with nut (6-2); Screw rod (6-1) passes through the screw hole of corrugated steel plate (2), and nut (6-2) is screwed from its upper, the bottom surface of nut (6-2) is tightly pressed against the top surface of corrugated steel plate (2), the one end of bolt with ball hinge (6-3) is connected with bottom pipe clamp (8) through connecting block (10), connecting block (10) can rotate around bolt ball hinge (6-3).

2. The temporary support for multi-point bracing butt joint of large-span special-shaped tubular truss according to claim 1, characterized in that: The length of screw rod (6-1) is greater than the thickness of steel plate, and the diameter of screw rod matches the bolt hole diameter of corrugated steel plate (2).

3. The temporary support for multi-point bracing of large-span special-shaped tubular truss butt joint according to claim 1, characterized in that: The whole corrugated steel plate (2) is stamped, and trapezoidal recess is opened on the top surface of both sides of one end, the central axis of trapezoidal recess is aligned with the center of ear plate (4), bolt hole is opened on the bottom and the inclined wall of both sides of corrugated steel plate (2).

4. The long-span special-shaped tubular truss multi-point supported butt-jointed temporary support according to claim 3, characterized in that: The bottom of slider (3) is provided with trapezoidal protrusion, which can be embedded in the trapezoidal recess of corrugated steel plate (2) and slide along the trapezoidal recess, the size of trapezoidal recess is greater than that of trapezoidal protrusion of slider (3), which limits the pulling out of slider (3) while allowing the slider (3) to slide along the recess.

5. The temporary support for multi-point bracing of large span special-shaped tubular truss abutments according to claim 1, characterized in that: Slider (3) is integrally formed with connecting rod (5), and the free end of connecting rod (5) is welded with side pipe clamp (9).

6. The multi-point bracing butt-connection temporary support of long-span special-shaped tubular truss according to claim 1, characterized in that: Bottom pipe clamp (8) and side pipe clamp (9) are both made of arc steel plate.

7. The multi-point bracing butt-connection temporary support of long-span special-shaped tubular truss according to claim 6, characterized in that: The concave surface of arc steel plate is pasted with rubber pad.

8. The construction method of the large-span special-shaped tubular truss multi-point supported butt-jointed temporary support according to any one of claims 1-7, characterized in that: Specifically includes the following steps: (1), process and assemble all parts of the support in the factory, wherein the bottom and inclined wall of corrugated steel plate (2) are provided with bolt hole, and slider (3) is integrally formed with connecting rod (5); (2), weld corrugated steel plate (2) with steel frame (1), and weld ear plate (4) on both sides of steel frame (1); push slider (3) into trapezoidal recess to connect with corrugated steel plate (2); weld the free end of connecting rod (5) with side pipe clamp (9); screw bolt with ball hinge (6) into the reserved bolt hole from below corrugated steel plate (2), and screw nut (6-2) into screw rod (6-1) from above; after the concave surface of connecting block (10) is tightly pasted with the convex surface of bottom pipe clamp (8), weld connecting block (10), bottom pipe clamp (8) and side pipe clamp (9); (3), the support is placed in the pipe truss under the pipe to be supported, and the bottom pipe clamp (8) is placed between the pipe and the support. The convex surface connecting block (10) of the bottom pipe clamp (8) and the side pipe clamp (9) is centered with the ball hinge bolt (6) ball hinge; (4), the wrench is twisted to adjust the height of the ball hinge (6-3), and the angle of the bottom pipe clamp (8) is adjusted until the ball hinge (6-3) and the connecting block (10) and the bottom pipe clamp (8) and the pipe are tightly pressed against each other. Then turn the nut (6-2) until the bottom surface of the nut is tightly pressed against the top surface of the corrugated steel plate (2). The adjustment steps of each bottom pipe clamp (8) are the same. (5), the wrench is twisted to push the sliding block (3) to move horizontally until the side pipe clamp (9) is tightly pressed against the pipe, and the pipe is completely fixed in the horizontal direction; (6), check whether the bottom pipe clamp (8) and the side pipe clamp (9) are tightly pressed against the pipe truss pipe, and confirm that the pipe is completely fixed before welding connection construction of the pipe truss.

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