Temporary support structure applied to steel truss girder construction

Abstract

The utility model relates to a temporary support structure applied to steel truss girder construction, and relates to the technical field of steel truss girder construction.The temporary support structure comprises two supporting mechanisms for supporting the two sides of the bottom of a steel truss girder respectively, and the multiple supporting mechanisms are arranged in the length direction of the steel truss girder at intervals to jointly support the same side of the steel truss girder; the supporting mechanism comprises multiple sets of supporting frames arranged on the construction ground. The slideway beam is arranged on the multiple groups of supporting frames and is used for supporting one side of the bottom of the steel truss girder in a sliding manner; and the limiting assemblies are arranged on the multiple sets of supporting frames and conduct sliding limiting on one side wall of the steel truss girder. The slideway beam is jointly supported and fixed through the multiple supporting frames, finally, the bottom of the steel truss beam is slidably supported, rolling limiting is conducted on the side wall of the steel truss beam through the limiting assemblies, and then the probability that the steel truss beam deviates in the construction process is reduced.

Description

Technical Field

[0001] This application relates to the technical field of steel truss construction, and in particular to a temporary support structure used in steel truss construction. Background Technology

[0002] A steel truss bridge is a structural form that hollows out a solid steel plate girder bridge according to certain rules. The main stress modes of the beam are to bear bending moment and shear force. It consists of a braking connection system, bridge deck, supports and piers (abutments).

[0003] Depending on the location of the bridge deck, steel truss bridges are divided into upper-deck steel truss bridges and lower-deck steel truss bridges. Lower-deck steel truss bridges require temporary support steel frames to reinforce the main beams during towing construction in order to improve construction safety.

[0004] After the existing temporary supports are used for dragging construction, the steel truss beams are supported on the temporary supports by resting connections. The resting points are set below the web of the main truss members and below the transverse diaphragms, which leads to the problem of slippage and misalignment during the assembly of the steel truss. Utility Model Content

[0005] To reduce the probability of displacement during the construction of steel trusses, this application provides a temporary support structure for steel truss construction.

[0006] This application provides a temporary support structure for steel truss construction, employing the following technical solution:

[0007] A temporary support structure for steel truss construction includes two sets of support mechanisms that support the bottom sides of the steel truss respectively. Multiple sets of support mechanisms are spaced apart along the length of the steel truss to support the same side of the steel truss. Each support mechanism includes:

[0008] Support frames, multiple sets of the aforementioned support frames are installed on the construction ground;

[0009] The slide beam is mounted on multiple sets of support frames and provides sliding support on one side of the bottom of the steel truss beam;

[0010] A limiting component is provided, which is mounted on multiple sets of support frames and limits the sliding movement of one side wall of the steel truss beam.

[0011] By adopting the above technical solution, the slide beam is supported and fixed by multiple support frames, and the bottom of the steel truss beam is finally supported by sliding. The side wall of the steel truss beam is rolled and limited by the limiting component, thereby reducing the probability of displacement during the construction of the steel truss beam.

[0012] Furthermore, the limiting component includes:

[0013] A limiting block is provided on multiple sets of support frames and located on one side of the steel truss beam;

[0014] The rollers, in multiple sets, are rotatably arranged at intervals on the limiting block near the steel truss beam and roll against the side wall of the steel truss beam.

[0015] By adopting the above technical solution, the limiting block is fixedly installed on multiple sets of support frames. The side walls of multiple sets of rollers roll and press against the side wall of the steel truss beam to limit the steel truss beam. At the same time, when the steel truss beam slides on the slide beam, the rollers roll, ultimately achieving the sliding and limiting of the side wall of the steel truss beam.

[0016] Furthermore, the support frame is provided with a positioning groove, and the bottom of the limiting block is provided with a snap-fit ​​block that slides and abuts against the positioning groove. The limiting block is locked to the support frame by fixing bolts.

[0017] By adopting the above technical solution, the locking block is first locked in the positioning groove on the installation limit block, then the limit block is slid to the designated position, and finally locked on the support frame by fixing bolts, so as to facilitate the sliding and abutment of the side wall of the steel truss.

[0018] Furthermore, a guide block is provided on one end of the limiting block, and multiple sets of rollers are also rotatably provided on the guide block. The two sets of guide blocks on the two sets of limiting blocks are in a figure-eight structure. The two sets of guide blocks are used to guide the sliding steel truss beam into the two sets of limiting blocks.

[0019] By adopting the above technical solution, when the steel truss slides, the front end of the steel truss is guided by two sets of guide blocks, so that the opposite sides of the steel truss roll and press against the rollers on the two sets of limit blocks.

[0020] Furthermore, the support frame includes:

[0021] Mounting base, wherein the mounting base is set on the construction ground;

[0022] The support body is mounted on the mounting base, the slide beam is mounted on the support body and is used to slide and support the steel truss beam, and the limiting block is mounted on the support body.

[0023] By adopting the above technical solution, the mounting base is set on the construction ground, and then the support body is installed on the mounting base, and the bottom of the slide beam is supported and fixed, so as to realize the sliding support of the slide beam on the steel truss beam.

[0024] Furthermore, the supporting body includes:

[0025] The first steel pipe, two sets of the first steel pipe are arranged at intervals on the mounting base;

[0026] The first distribution beam is disposed on the end of the two sets of first steel pipes away from the mounting base, and the slide beam is disposed on the middle part of the side of the first distribution beam away from the first steel pipe and is perpendicular to the first distribution beam.

[0027] By adopting the above technical solution, the two sets of first steel pipes are fixedly installed on the mounting base, and the first distribution beam is fixedly installed on the two sets of first steel pipes, so as to distribute the force of the steel truss beam on the slide beam to the two sets of first steel pipes through the first distribution beam.

[0028] Furthermore, the supporting body includes:

[0029] The second steel pipe, four sets of the second steel pipe are set on the mounting base, and the connection points of the four sets of the second steel pipe and the mounting base are located at the four corners of the square;

[0030] The second distribution beam is set on two adjacent sets of second steel pipes and is parallel to the slide beam. There are two sets of the second distribution beam.

[0031] The third distribution beam is located in the middle of the two sets of second distribution beams, and the slide beam is located in the middle of the third distribution beam on the side away from the second distribution beam. The third distribution beam and the slide beam are perpendicular to each other.

[0032] By adopting the above technical solution, two sets of second steel pipes support both ends of one set of second distribution beams, and two sets of second distribution beams support both ends of two sets of third distribution beams respectively. When the steel truss is placed on the slide beam, the force of the slide beam steel truss on the slide beam is distributed to the two sets of second distribution beams through the third distribution beam, and the force on the two sets of second distribution beams is distributed to the four sets of second steel pipes.

[0033] Furthermore, the connection between the first steel pipe and the mounting base is fixedly connected by a steel plate, and the connection between the first steel pipe and the first distribution beam is also fixedly connected by a steel plate.

[0034] By adopting the above technical solution, the connection strength between the first steel pipe and the mounting base, and between the first steel pipe and the first distribution beam, is increased by using steel plates, thereby improving the fixing effect at both ends of the first steel pipe.

[0035] Furthermore, multiple sets of channel steel are interleaved between the two sets of first steel pipes, and the multiple sets of channel steel are used to enhance the stability between the two sets of first steel pipes.

[0036] By adopting the above technical solution, the stability between two adjacent first steel pipes is improved by multiple sets of interlocking channel steels, and the probability of deformation of the first steel pipe is reduced.

[0037] Furthermore, multiple sets of auxiliary supports are provided in the assembly area between the multiple sets of support frames, and the multiple sets of auxiliary supports are used to assist the support frames in providing auxiliary support for the slide beam.

[0038] By adopting the above technical solution, the auxiliary frame provides auxiliary support to the assembly area between multiple sets of support frames, thereby improving the support effect of multiple sets of support frames on the slide beam.

[0039] In summary, this application includes at least one of the following beneficial technical effects:

[0040] 1. The slide beam is supported and fixed by a variety of support frames and auxiliary supports, and finally the bottom of the steel truss beam is slidably supported. The limiting blocks and multiple sets of rollers work together to roll and limit the opposite sides of the steel truss beam, thereby reducing the probability of the steel truss beam deviating during construction.

[0041] 2. The slide beam is supported and fixed by multiple support frames and auxiliary supports, and finally the bottom of the steel truss beam is slidably supported. The four sets of steel pipes and the second distribution beam improve the load-bearing capacity of the support frame, thereby improving the load-bearing capacity and stability of the support frame. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the temporary support structure for the steel truss beam in Embodiment 1 of this application;

[0043] Figure 2 This is a schematic diagram of the support mechanism structure of Embodiment 1 of this application;

[0044] Figure 3 This is a schematic diagram of the support structure of Embodiment 2 of this application.

[0045] Reference numerals in the attached drawings: 1. Steel truss beam; 2. Support mechanism; 21. Support frame; 211. Mounting seat; 22. Slide beam; 3. Support body; 31. First steel pipe; 32. First distribution beam; 33. Second steel pipe; 34. Second distribution beam; 35. Third distribution beam; 4. Steel plate; 5. Channel steel; 6. Auxiliary bracket; 7. Limiting component; 71. Limiting block; 72. Roller; 8. Mounting block; 81. Positioning groove; 9. Guide block. Detailed Implementation

[0046] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0047] This application discloses a temporary support structure for the construction of steel trusses.

[0048] Example 1

[0049] Reference Figure 1A temporary support structure for steel truss construction includes two sets of support mechanisms 2 that support the bottom sides of the steel truss 1 respectively. Multiple sets of support mechanisms 2 are spaced apart along the length of the steel truss 1 to support the same side of the steel truss 1.

[0050] Reference Figure 1 and Figure 2 The support mechanism 2 includes a support frame 21 and a slide beam 22. Multiple sets of support frames 21 are provided and set on the construction ground. The slide beam 22 is fixedly installed on the side of the multiple sets of support frames 21 away from the construction ground. The slide beam 22 provides sliding support to one side of the bottom of the steel truss beam 1.

[0051] Reference Figure 1 and Figure 2 The support frame 21 includes a mounting base 211 and a support body 3. The mounting base 211 is fixedly installed on the construction ground and is made of C30 concrete. The support body 3 is set on the upper surface of the mounting base 211, and the slide beam 22 is fixedly installed on the end of the support body 3 away from the mounting base 211, so as to provide sliding support for the bottom of the steel truss beam 1.

[0052] Reference Figure 2 The supporting body 3 includes a first steel pipe 31 and a first distribution beam 32. Two sets of first steel pipes 31 are provided, and the two sets of first steel pipes 31 are spaced apart on the mounting base 211. In order to improve the fixed connection effect between the first steel pipes 31 and the mounting base 211, a steel plate 4 is fixedly installed on the mounting base 211, and the first steel pipes 31 are fixedly connected to the mounting base 211 through the steel plate 4. A steel plate 4 is also fixedly installed on the end of the first steel pipe 31 away from the mounting base 211. The first distribution beam 32 is fixedly connected to the end of the two sets of first steel pipes 31 away from the mounting base 211 through the steel plate 4. The slide beam 22 is fixedly installed on the middle part of the side of the first distribution beam 32 away from the first steel pipe 31. The length direction of the slide beam 22 is perpendicular to the length direction of the first distribution beam 32, so as to distribute the force of the steel truss beam 1 on the slide beam 22 to the two sets of first steel pipes 31 through the first distribution beam 32. In this embodiment, the first steel pipe 31 is made of steel pipe with a diameter of 800 mm.

[0053] Reference Figure 2 Multiple sets of channel steel 5 are installed interlaced between the two sets of first steel pipes 31. The multiple sets of channel steel 5 interact with each other to enhance the stability between the two sets of first steel pipes 31, and ultimately improve the support and fixation effect on the slide beam 22.

[0054] Reference Figure 1 and Figure 2In order to improve the support effect on the slide beam 22, multiple sets of auxiliary supports 6 are set in the assembly area between multiple sets of support frames 21. The multiple sets of auxiliary supports 6 are used to assist the support frames 21 in providing auxiliary support to the bottom of the slide beam 22. In this embodiment, the structure of the auxiliary support 6 is the same as that of the support frame 21, but the diameter of the steel pipe is smaller than that of the first steel pipe 31. The diameter of the steel pipe of the auxiliary support 6 is 600 mm. The distribution beam of the auxiliary support 6 cooperates with the steel pipe.

[0055] Reference Figure 1 and Figure 2 The support mechanism 2 also includes a limiting component 7, which is set on multiple sets of support frames 21. The limiting component 7 slides and limits one side wall of the steel truss beam 1. The limiting component 7 includes a limiting block 71 and a roller 72. The limiting block 71 is set on multiple sets of support frames 21 and is located on one side of the steel truss beam 1. An installation block 8 is fixedly installed on the first distribution beam 32. The length direction of the installation block 8 is parallel to the length direction of the slide beam 22. A positioning groove 81 is opened on the upper surface of the installation block 8. The length direction of the positioning groove 81 is parallel to the length direction of the slide beam 22. A snap-fit ​​block that slides and abuts against the positioning groove 81 is fixedly installed on the bottom of the limiting block 71. The limiting block 71 is locked on the support frame 21 by fixing screws.

[0056] Reference Figure 1 and Figure 2 The roller 72 is provided in multiple sets, and the multiple sets of roller 72 are rotatably installed on the side of the limiting block 71 near the steel truss beam 1. The side wall of the roller 72 rolls against the side wall of the steel truss beam 1. The end face of the multiple sets of roller 72 limits and fixes the steel truss beam 1. At the same time, when the roller 72 rotates, it is convenient for the steel truss beam 1 to slide.

[0057] Reference Figure 1 and Figure 2 Since the adjacent support mechanisms 2 are suspended, when the steel truss beam 1 slides to the next set of support mechanisms 2, in order to reduce the probability of the steel truss beam 1 shifting, a guide block 9 is fixedly installed on the end of the limiting block 71 near the previous set of support mechanisms 2. Multiple sets of rollers 72 are also rotatably installed on the end of the guide block 9 near the steel truss beam 1. The two sets of guide blocks 9 on the two sets of mutually symmetrical limiting blocks 71 form an eight-shaped structure, so that the sliding steel truss beam 1 is guided into the two sets of limiting blocks 71 by the joint action of the two sets of guide blocks 9.

[0058] The working principle of Embodiment 1 of this application is as follows:

[0059] The slide beam 22 is supported and fixed by multiple support frames 21 and auxiliary brackets 6, and finally the bottom of the steel truss beam 1 is slidably supported. The limiting block 71 and multiple sets of rollers 72 cooperate with each other to roll and limit the opposite sides of the steel truss beam 1, thereby reducing the probability of the steel truss beam 1 deviating during construction.

[0060] Example 2

[0061] Reference Figure 3 The difference between this embodiment and Embodiment 1 is that the supporting body 3 includes a second steel pipe 33, a second distribution beam 34, and a third distribution beam 35. Four sets of second steel pipes 33 are provided, and these four sets are mounted on the mounting base 211. The connections between the four sets of second steel pipes 33 and the mounting base 211 are located at the four corners of a square. To improve the fixed connection effect between the second steel pipes 33 and the mounting base 211, a steel plate 4 is fixedly installed on the mounting base 211, and the second steel pipes 33 are fixedly connected to the mounting base 211 through the steel plate 4. The second steel pipes 33 are located away from the mounting base 211. A steel plate 4 is also fixedly installed on one end. The second distribution beam 34 is fixedly connected to the end of the second steel pipe 33 away from the mounting base 211 through the steel plate 4. There are two sets of the second distribution beam 34, and both sets of the second distribution beam 34 are parallel to each other with the slide beam 22. The third distribution beam 35 is fixedly installed on the middle part of the two sets of second distribution beams 34 away from the second steel pipe 33. The slide beam 22 is fixedly installed on the middle part of the side of the third distribution beam 35 away from the second distribution beam 34. The third distribution beam 35 is perpendicular to the slide beam 22. In this embodiment, the second steel pipe 33 is made of steel pipe with a diameter of 800 mm.

[0062] Reference Figure 3 Two sets of second steel pipes 33 support both ends of one set of second distribution beams 34, and two sets of second distribution beams 34 support both ends of two sets of third distribution beams 35 respectively; when the steel truss beam 1 is placed on the slide beam 22, the force exerted by the steel truss beam 1 on the slide beam 22 is distributed to the two sets of second distribution beams 34 through the third distribution beams 35, and the force exerted on the two sets of second distribution beams 34 is distributed to the four sets of second steel pipes 33.

[0063] Reference Figure 3 Multiple sets of channel steel 5 are installed interlaced between the four sets of second steel pipes 33. The multiple sets of channel steel 5 interact with each other to enhance the stability between the four sets of second steel pipes 33, and ultimately improve the support and fixation effect on the slide beam 22.

[0064] The working principle of Embodiment 2 of this application is as follows:

[0065] The slide beam 22 is supported and fixed by multiple support frames 21 and auxiliary brackets 6, and finally the bottom of the steel truss beam 1 is slidably supported. The four sets of steel pipes and the second distribution beam 34 improve the load-bearing capacity of the support frame 21, thereby improving the load-bearing capacity and stability of the support frame 21.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temporary support structure for steel truss construction, characterized in that: The system includes two sets of support mechanisms (2) that support the bottom sides of the steel truss beam (1) respectively. Multiple sets of support mechanisms (2) are spaced apart along the length of the steel truss beam (1) to support the same side of the steel truss beam (1). Each support mechanism (2) includes: Support frame (21), multiple sets of the support frame (21) are set on the construction ground; The slide beam (22) is set on multiple sets of support frames (21) and provides sliding support to one side of the bottom of the steel truss beam (1); Limiting component (7) is set on multiple sets of support frames (21) and slides and limits one side wall of the steel truss beam (1).

2. The temporary support structure for steel truss construction according to claim 1, characterized in that: The limiting component (7) includes: Limiting block (71), the limiting block (71) is set on multiple sets of support frames (21) and located on one side of the steel truss beam (1); Roller (72), multiple sets of rollers (72) are rotatably arranged on the limiting block (71) near the steel truss (1) and roll against the side wall of the steel truss (1).

3. A temporary support structure for steel truss construction according to claim 2, characterized in that: The support frame (21) is provided with a positioning groove (81), and the bottom of the limiting block (71) is provided with a snap-fit ​​block that slides and abuts against the positioning groove (81). The limiting block (71) is locked on the support frame (21) by fixing bolts.

4. A temporary support structure for steel truss construction according to claim 3, characterized in that: A guide block (9) is provided on one end of the limiting block (71), and multiple sets of rollers (72) are also rotatably provided on the guide block (9). The two sets of guide blocks (9) on the two sets of limiting blocks (71) are in a figure-eight structure. The two sets of guide blocks (9) are used to guide the sliding steel truss beam (1) into the two sets of limiting blocks (71).

5. A temporary support structure for steel truss construction according to claim 2, characterized in that: The support frame (21) includes: Mounting base (211), said mounting base (211) is set on the construction ground; The support body (3) is mounted on the mounting base (211), the slide beam (22) is mounted on the support body (3) and used to slide support the steel truss beam (1), and the limiting block (71) is mounted on the support body (3).

6. A temporary support structure for steel truss construction according to claim 5, characterized in that: The supporting body (3) includes: The first steel pipe (31) and two sets of the first steel pipe (31) are spaced apart on the mounting base (211); The first distribution beam (32) is located on one end of the two sets of first steel pipes (31) away from the mounting base (211), and the slide beam (22) is located on the middle part of the side of the first distribution beam (32) away from the first steel pipe (31) and is perpendicular to the first distribution beam (32).

7. A temporary support structure for steel truss construction according to claim 5, characterized in that: The supporting body (3) includes: The second steel pipe (33) and four sets of the second steel pipe (33) are set on the mounting base (211), and the connection between the four sets of the second steel pipe (33) and the mounting base (211) is located at the four corners of the square; The second distribution beam (34) is set on two adjacent sets of second steel pipes (33) and is parallel to the slide beam (22). There are two sets of the second distribution beam (34). The third distribution beam (35) is located in the middle of the two sets of second distribution beams (34), and the slide beam (22) is located in the middle of the side of the third distribution beam (35) away from the second distribution beam (34). The third distribution beam (35) and the slide beam (22) are perpendicular to each other.

8. A temporary support structure for steel truss construction according to claim 6, characterized in that: The connection between the first steel pipe (31) and the mounting base (211) is fixedly connected by a steel plate (4), and the connection between the first steel pipe (31) and the first distribution beam (32) is also fixedly connected by a steel plate (4).

9. A temporary support structure for steel truss construction according to claim 6, characterized in that: Multiple sets of channel steel (5) are interleaved between the two sets of first steel pipes (31), and the multiple sets of channel steel (5) are used to enhance the stability between the two sets of first steel pipes (31).

10. A temporary support structure for steel truss construction according to claim 1, characterized in that: Multiple sets of auxiliary supports (6) are provided in the assembly area between the multiple sets of support frames (21). The multiple sets of auxiliary supports (6) are used to assist the support frames (21) in providing auxiliary support for the slide beam (22).

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