Box girder inner mold roof support truss and construction process thereof

Abstract

The application discloses a box girder inner mold roof support truss, which comprises a support mechanism, a roof support mechanism and a side support mechanism, the support mechanism is provided with the roof support mechanism on one side, and the roof support mechanism is provided with the side support mechanism on one side; the support mechanism comprises a support base, a square hole, a first support column, an adjusting arm, a connecting block and a first bidirectional screw rod, and the middle of the support base and the bottom of the first support column are movably connected. According to the support height, different numbers of superposed columns are installed, the support height of the top block can be adjusted, meanwhile, the first support column is rotated on the support base, so that the angle of the sliding base is adjusted, meanwhile, the second support column can slide on the sliding base, so that the support position of the top block is adjusted, timely adjustment can be carried out during installation and after installation, frequent disassembly, installation and adjustment are not needed, so that the construction time required is reduced, and the construction progress is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of bridge roof pouring, in particular to a box girder inner mold roof support truss and its construction process. BACKGROUND

[0002] The box section girder bridge refers to the girder bridge with thin-walled closed section form, which has good wind resistance and large bridge width, etc. In the pouring of the box chamber, the reinforcement is first bundled and welded, and the formwork needs to be built. The formwork is built according to the size of the bridge to form the shape to be poured. After the formwork is built, the concrete is poured between the formwork and mixed with the reinforcement until it is cured and shaped. The box girder inner mold roof is the support formwork of the box chamber roof.

[0003] The existing box girder inner mold roof uses a scaffold as a support frame when it is set up. In the construction process, the following problems exist: 1) Because the box chamber roof has a specific shape, the scaffold is prone to unstable installation height during installation, resulting in uneven height. The scaffold needs to be disassembled, installed and adjusted again, which is more cumbersome, greatly increasing the construction time and reducing the construction progress. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings in the prior art and provide a box girder inner mold roof support truss and its construction process. The support mechanism provides support for the jacking mechanism, the side support mechanism reinforces the side of the support mechanism, reduces the shaking of the support mechanism, and the formwork is laid on the jacking mechanism to provide support for the inner mold of the roof.

[0005] In order to achieve the above purpose, the technical solution adopted by the present application is:

[0006] A box girder inner mold roof support truss, comprising a support mechanism, a jacking mechanism and a side support mechanism, wherein one side of the support mechanism is provided with the jacking mechanism, and one side of the jacking mechanism is provided with the side support mechanism.

[0007] The supporting mechanism comprises a supporting seat, square holes, a first supporting column, adjusting arms, a connecting block, a first bidirectional screw rod, an adjusting block, a sliding seat, a second supporting column, a superposed column, a plug rod, a plug slot, a third supporting column, a top block and a reinforcing mechanism, the middle of the supporting seat and the bottom of the first supporting column are movably connected, the top of the first supporting column and one end of two groups of symmetrically distributed adjusting arms are movably connected, the other end of the adjusting arms and the connecting block are movably connected, the connecting block and the first bidirectional screw rod are connected through threads, the two ends of the first bidirectional screw rod and the sliding seat are movably connected, one end of the first bidirectional screw rod and the adjusting block are connected, the top of the sliding seat and the second supporting column are slidably connected, the bottom of the sliding seat and the adjusting block are slidably connected, the top of the second supporting column is provided with the plug slot, the bottom of the superposed column is provided with the plug rod, the top of the superposed column is provided with the plug slot, the superposed column is inserted into the plug slot on the second supporting column through the plug rod, the bottom of the third supporting column is provided with the plug rod, the third supporting column is inserted into the plug slot on the superposed column through the plug rod, the top of the third supporting column is provided with the top block, a plurality of square holes are arranged on the supporting seat, and the supporting seats are connected through the reinforcing mechanism.

[0008] Preferably, the reinforcing mechanism comprises locking columns, locking sleeves, locking rods, locking slots, plug columns, sliding discs and butt joints, the sliding discs and two groups of locking rods are slidably connected, the locking rods are provided with locking slots, one end of the locking rods and the locking sleeves are fixedly connected, the locking sleeves and the locking columns are movably connected, the locking columns are inserted into the square holes, one side of the sliding disc is provided with another group of sliding discs, the two groups of sliding discs are movably connected with one end of the butt joints, the other end of the butt joints is connected through bolts, the middle of the sliding disc is inserted into the plug column, and the plug column corresponds to the locking slot.

[0009] Preferably, the top supporting mechanism comprises a top supporting frame, a first sliding rail, a second sliding rail, a second bidirectional screw rod, a bevel gear set, a rotating rod, moving blocks and adjusting arms, one side of the top supporting frame and the first sliding rail are connected through bolts, the first sliding rail and the two ends of the second bidirectional screw rod are movably connected, one end of the second bidirectional screw rod is connected with the rotating rod through the bevel gear set, the rotating rod and the first sliding rail are movably connected, the first sliding rail and a pair of moving blocks are slidably connected, the second bidirectional screw rod and the moving blocks are connected through threads, one end of the moving blocks and the adjusting arms are movably connected, the other end of the adjusting arms and the moving blocks on the second sliding rail are movably connected, the middle of the two groups of adjusting arms is connected through a pin shaft, the second sliding rail and the moving blocks are slidably connected, and the second sliding rail and the other group of top supporting frames are connected through bolts.

[0010] Preferably, the side supporting mechanism comprises a fixed plate, a fixed rod, through holes, sliding blocks, fixed columns, side supporting arms, adjusting supporting plates and fixed forks, the fixed plate is inserted into the square hole, the top of the fixed plate and the fixed rod are fixedly connected, the fixed rod is provided with a plurality of through holes, the sliding blocks and the fixed rod are slidably connected, the sliding blocks are provided with through holes, the fixed columns are inserted into the through holes to fix the fixed rod and the sliding blocks, one side of the sliding blocks and the side supporting arms are movably connected, the side supporting arms and the adjusting supporting plates are connected through threads, the top of the fixed rod and one end of the fixed forks are movably connected, and the other end of the fixed forks is fixed through bolts.

[0011] The rotating rod and the adjusting block are provided with hexagonal grooves at one end.

[0012] The box girder inner mold roof support truss construction process is as follows:

[0013] Step 1): making the top support frame: according to the shape of the roof of the box chamber of the bridge, the corresponding top support frame is made, and the top support frame is installed on the top block

[0014] and the first sliding rail and the second sliding rail are installed;

[0015] Step 2): installing the support member: marking the support points according to the measurement, sequentially installing the support seat at the marked points row by row, and determining the installation of different numbers of superposed columns according to the support height, and rotating the first bidirectional lead screw to drive the adjusting arm to rotate, and adjusting the support height;

[0016] Step 3): reinforcing the support member; the locking column is installed on the support seat, and the locking sleeve is installed on the locking column, the locking rod is fixed by inserting the column into the sliding disc, and then the support seats are connected and fixed;

[0017] Step 4): reinforcing the side of the support member: the fixed plate is installed on the support seat, the fixed fork is installed on the superposed column, the adjusting support plate is rotated until the adjusting support plate is connected with the side formwork, and the side of the support mechanism is reinforced and supported;

[0018] Step 5): installing the top support frame: adjusting the distance between the top blocks, adjusting the distance between the connecting blocks by rotating the first bidirectional lead screw, driving the adjusting arm to rotate, and then adjusting the distance between the sliding seat and the first support column, after the adjustment is completed, the top support frame is directly installed on the top block, and the square wood is installed on the top support frame, and the formwork is laid on the square wood.

[0019] The present application has the following beneficial effects compared with the prior art:

[0020] 1) the support seat is installed at the installation point after measurement, and the first support column, the adjusting arm, the sliding seat, the second support column, the superposed column, the third support column and the top block are installed one by one, the first bidirectional lead screw is driven to rotate by rotating the adjusting block, the distance between the connecting blocks is adjusted, the adjusting arm is driven to rotate, the distance between the sliding seat and the first support column is adjusted, the support height of the top block is fine-tuned, and different numbers of superposed columns are installed according to the support height, which can also adjust the support height of the top block, and the first support column is rotated on the support seat to adjust the angle of the sliding seat, and the second support column can slide on the sliding seat to adjust the support position of the top block, so that timely adjustment can be made during installation and after installation, without the need for frequent disassembly, installation and adjustment, thereby reducing the time required for construction and improving the construction progress. BRIEF DESCRIPTION OF DRAWINGS

[0021] BRIEF DESCRIPTION OF DRAWINGS Figure 1 is a schematic diagram of a box girder inner mold roof support truss structure of the present application;

[0022] BRIEF DESCRIPTION OF DRAWINGS Figure 2 is a schematic diagram of a middle support frame structure of a box girder inner mold roof support truss of the present application;

[0023] BRIEF DESCRIPTION OF DRAWINGS Figure 3 is an enlarged view of part A in the above Figure 2

[0024] BRIEF DESCRIPTION OF DRAWINGS Figure 4 is a schematic diagram of a middle support mechanism structure of a box girder inner mold roof support truss of the present application;

[0025] BRIEF DESCRIPTION OF DRAWINGS Figure 5 is an enlarged view of part B in the above Figure 4

[0026] BRIEF DESCRIPTION OF DRAWINGS Figure 6 is a schematic diagram of a middle reinforcing mechanism structure of a box girder inner mold roof support truss of the present application;

[0027] BRIEF DESCRIPTION OF DRAWINGS Figure 7 is a schematic diagram of a middle butt joint frame structure of a box girder inner mold roof support truss of the present application;

[0028] BRIEF DESCRIPTION OF DRAWINGS Figure 8 is a schematic diagram of a middle side support mechanism structure of a box girder inner mold roof support truss of the present application;

[0029] In the figure: 1, support mechanism; 11, support seat; 12, square hole; 13, first support column; 14, adjusting arm; 15, connecting block; 16, first bidirectional screw; 17, adjusting block; 18, sliding seat; 19, second support column; 101, superposed column; 102, insertion rod; 103, insertion slot; 104, third support column; 105, top block; 106, reinforcing mechanism; 61, locking column; 62, locking sleeve; 63, locking rod; 64, locking slot; 65, insertion column; 66, sliding disc; 67, butt joint frame; 2, top support mechanism; 21, top support frame; 22, first sliding rail; 23, second sliding rail; 24, second bidirectional screw; 25, bevel gear set; 26, rotating rod; 27, moving block; 28, adjusting arm; 3, side support mechanism; 31, fixed plate; 32, fixed rod; 33, through hole; 34, sliding block; 35, fixed column; 36, side support arm; 37, adjusting support plate; 38, fixed fork. DETAILED DESCRIPTION

[0030] For the convenience of understanding of the person skilled in the art, the technical solutions of the present application are further specifically described below in combination with the above Figures 1-8

[0031] ​​​A box girder inner formwork roof support truss, including support mechanism 1, top support mechanism 2, side support mechanism 3, one side of the support mechanism 1 is provided with the top support mechanism 2, one side of the top support mechanism 2 is provided with the side support mechanism 3;

[0032] The support mechanism 1 includes support seat 11, square hole 12, first support column 13, adjusting arm 14, connecting block 15, first bidirectional lead screw 16, adjusting block 17, sliding seat 18, second support column 19, superposition column 101, plug rod 102, plug groove 103, third support column 104, top block 105, reinforcing mechanism 106, the middle of the support seat 11 and the bottom of the first support column 13 are movably connected, the top of the first support column 13 and one end of the two groups of symmetrically distributed adjusting arms 14 are movably connected, the other end of the adjusting arm 14 and the connecting block 15 are movably connected, the connecting block 15 and the first bidirectional lead screw 16 are connected by threads, the two ends of the first bidirectional lead screw 16 and the sliding seat 18 are movably connected, one end of the first bidirectional lead screw 16 and the adjusting block 17 are connected, the top of the sliding seat 18 and the second support column 19 are slidingly connected, the bottom of the sliding seat 18 and the adjusting block 17 are slidingly connected, the top of the second support column 19 is provided with the plug groove 103, the bottom of the superposition column 101 is provided with the plug rod 102, the top of the superposition column 101 is provided with the plug groove 103, the superposition column 101 is inserted with the plug groove 103 on the second support column 19 through the plug rod 102, the bottom of the third support column 104 is provided with the plug rod 102, which is inserted with the plug groove 103 on the superposition column 101 through the plug rod 102, the top of the third support column 104 is provided with the top block 105, a plurality of square holes 12 are arranged on the support seat 11, and the support seats 11 are connected by the reinforcing mechanism 106;

[0033] The support mechanism 1 supports the top support mechanism 2, the side support mechanism 3 reinforces the side of the support mechanism 1, reduces the shaking of the support mechanism 1, and lays the formwork on the top support mechanism 2, thereby providing support for the inner formwork of the roof;

[0034] The support seat 11 is installed at the measured installation point, and then the first support column 13, the adjusting arm 14, the sliding seat 18, the second support column 19, the superposition column 101, the third support column 104 and the top block 105 are installed one by one, the first bidirectional lead screw 16 is driven to rotate by rotating the adjusting block 17, thereby adjusting the distance between the connecting blocks 15, driving the adjusting arm 14 to rotate, thereby adjusting the distance between the sliding seat 18 and the first support column 13, and fine-tuning the support height of the top block 105, while according to the support height, a different number of superposition columns 101 are installed, the support height of the top block 105 can also be adjusted, while the first support column 13 is rotated on the support seat 11, thereby adjusting the angle of the sliding seat 18, while the second support column 19 can slide on the sliding seat 18, thereby adjusting the support position of the top block 105, thereby adjusting the support points of the multiple top blocks 105 to be a straight line, facilitating the installation of the top support mechanism 2, and the reinforcing mechanism 106 can connect and reinforce the support seats 11, thereby improving the stability of the support.

[0035] The reinforcing mechanism 106 comprises locking columns 61, locking sleeves 62, locking rods 63, locking grooves 64, insertion columns 65, sliding discs 66 and butt joints 67. The sliding discs 66 are slidably connected with the two groups of locking rods 63. The locking rods 63 are provided with the locking grooves 64. The locking rods 63 are fixedly connected with the locking sleeves 62 at one end. The locking sleeves 62 are movably connected with the locking columns 61. The locking columns 61 are inserted into the square holes 12 of the support seats 11. The insertion columns 65 are inserted into the sliding discs 66. The insertion columns 65 correspond to the locking grooves 64.

[0036] The locking rods 63 are slid on the sliding discs 66. The distance between the locking sleeves 62 is adjusted according to the distance between the locking columns 61. The locking sleeves 62 are installed on the locking columns 61. The insertion columns 65 are inserted into the sliding discs 66. The locking rods 63 and the sliding discs 66 are fixed by the insertion columns 65 and the locking grooves 64. The connecting frames between the support seats 11 and the reinforcement are achieved.

[0037] The top support mechanism 2 comprises top support frames 21, first sliding rails 22, second sliding rails 23, second bidirectional lead screws 24, bevel gear sets 25, rotating rods 26, moving blocks 27 and adjusting arms 28. The top support frames 21 are connected with the first sliding rails 22 through bolts at one side. The first sliding rails 22 are movably connected with the two ends of the second bidirectional lead screws 24. The second bidirectional lead screws 24 are connected with the rotating rods 26 through the bevel gear sets 25 at one end. The rotating rods 26 are movably connected with the first sliding rails 22. The first sliding rails 22 are slidably connected with the moving blocks 27. The second bidirectional lead screws 24 are connected with the moving blocks 27 through threads. The moving blocks 27 are movably connected with the adjusting arms 28 at one end. The adjusting arms 28 are movably connected with the moving blocks 27 on the second sliding rails 23 at the other end. The two groups of adjusting arms 28 are connected through pins in the middle. The second sliding rails 23 are slidably connected with the moving blocks 27. The second sliding rails 23 are connected with the other group of top support frames 21 through bolts.

[0038] The rotating rods 26 are rotated on the first sliding rails 22. The second bidirectional lead screws 24 are driven to rotate through the bevel gear sets 25. The distance between the two groups of moving blocks 27 on the first sliding rails 22 is adjusted. The other two groups of moving blocks 27 are driven to slide on the second sliding rails 23 through the adjusting arms 28. The distance between the two groups of top support frames 21 is adjusted.

[0039] The side support mechanism 3 comprises a fixed plate 31, a fixed rod 32, a through hole 33, a sliding block 34, a fixed column 35, a side support arm 36, an adjusting support plate 37, and a fixed fork 38, the fixed plate 31 is inserted into the square hole 12, the top of the fixed plate 31 is fixedly connected with the fixed rod 32, a plurality of through holes 33 are arranged on the fixed rod 32, the sliding block 34 is slidably connected with the fixed rod 32, the through hole 33 is arranged on the sliding block 34, the fixed column 35 is inserted into the through hole 33 to fix the fixed rod 32 and the sliding block 34, one side of the sliding block 34 is movably connected with the side support arm 36, the side support arm 36 and the adjusting support plate 37 are connected through threads, the top of the fixed rod 32 is movably connected with one end of the fixed fork 38, and the other end of the fixed fork 38 is fixed through a bolt;

[0040] The fixed plate 31 is inserted into the square hole 12, and the fixed fork 38 is installed on the superposed column 101, the adjusting support plate 37 is rotated until the adjusting support plate 37 is in contact with the side wall or the formwork.

[0041] The rotating rod 26 and one end of the adjusting block 17 are each provided with a hexagonal recess.

[0042] The box girder inner formwork top plate support truss construction process is as follows:

[0043] Step 1): making the top support frame: according to the shape of the top of the box chamber of the bridge, the corresponding top support frame is made, and the top support frame is installed on the top block of the support column;

[0044] and the first sliding rail and the second sliding rail are installed;

[0045] Step 2): installing the support member: according to the measurement, the support points are marked, the support seats are installed at the marked points in turn row by row, and according to the height of the support, different numbers of superposed columns are determined to be installed, and the first bidirectional lead screw is rotated to drive the adjusting arm to rotate, so that the height of the support is adjusted;

[0046] Step 3): reinforcing the support member; the locking column is installed on the support seat, the locking sleeve is installed on the locking column, the locking rod is fixed by inserting the column into the sliding disc, and then the support seats are connected and fixed;

[0047] Step 4): reinforcing the side of the support member; the fixed plate is installed on the support seat, the fixed fork is installed on the superposed column, the adjusting support plate is rotated until the adjusting support plate is in contact with the side formwork, and the side of the support mechanism is reinforced and supported;

[0048] Step 5): installing the top support frame: according to the distance of the top block, the distance between the top support frames is adjusted, the distance between the connecting blocks is adjusted by rotating the first bidirectional lead screw, the adjusting arm is driven to rotate, and then the distance between the sliding seat and the first support column is adjusted, after the adjustment is completed, the top support frame is directly installed on the top block, the square wood is installed on the top support frame, and the formwork is laid on the square wood.

[0049] The above merely illustrates and describes the structure of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or adopt similar ways to replace, as long as the modifications or supplements do not deviate from the structure of the present application or exceed the scope defined by the present claims, and should belong to the protection scope of the present application.

Claims

1. A box girder inner form roof slab support truss comprising support means, bracing means, side bracing means, characterised in that, The support mechanism is provided with a top support mechanism on one side, and a side support mechanism is provided on one side of the top support mechanism; The support mechanism comprises a support seat, a square hole, a first support column, an adjusting arm, a connecting block, a first bidirectional screw rod, an adjusting block, a sliding seat, a second support column, a superposed column, a plug rod, a plug slot, a third support column, a top block, and a reinforcing mechanism; the middle of the support seat and the bottom of the first support column are movably connected; the top of the first support column and one end of the two groups of symmetrically distributed adjusting arms are movably connected; the other end of the adjusting arm and the connecting block are movably connected; the connecting block and the first bidirectional screw rod are connected through threads; the two ends of the first bidirectional screw rod and the sliding seat are movably connected; one end of the first bidirectional screw rod and the adjusting block are connected; the top of the sliding seat and the second support column are slidably connected; the bottom of the sliding seat and the adjusting block are slidably connected; the top of the second support column is provided with a plug slot; the bottom of the superposed column is provided with a plug rod, and the top of the plug rod is provided with a plug slot; the superposed column is inserted with the plug rod and the plug slot on the second support column; the bottom of the third support column is provided with a plug rod, which is inserted with the plug slot on the superposed column; the top of the third support column is provided with a top block; a plurality of square holes are arranged on the support seat; and the support seats are connected through the reinforcing mechanism. The top support mechanism comprises a top support frame, a first sliding rail, a second sliding rail, a second bidirectional screw rod, a bevel gear set, a rotating rod, a moving block, and an adjusting arm; one side of the top support frame and the first sliding rail are connected through bolts; the first sliding rail and the two ends of the second bidirectional screw rod are movably connected; one end of the second bidirectional screw rod is connected with the rotating rod through the bevel gear set; the rotating rod and the first sliding rail are movably connected; the first sliding rail and the pair of moving blocks are slidably connected; the second bidirectional screw rod and the moving block are connected through threads; one end of the moving block and the adjusting arm are movably connected; the other end of the adjusting arm and the moving block on the second sliding rail are movably connected; the two groups of adjusting arms are connected through a pin shaft in the middle; the second sliding rail and the moving block are slidably connected; and the second sliding rail and the other group of top support frames are connected through bolts.

2. A box girder inner formwork roof slab support truss according to claim 1, characterised in that The reinforcing mechanism comprises a locking column, a locking sleeve, a locking rod, a locking slot, a plug column, a sliding disc, and a butt joint frame; the sliding disc and the two groups of locking rods are slidably connected; the locking rod is provided with a locking slot; one end of the locking rod and the locking sleeve are fixedly connected; the locking sleeve and the locking column are movably connected; the locking column is inserted with the square hole; one side of the sliding disc is provided with another group of sliding discs; the two groups of sliding discs are movably connected with one end of the butt joint frame; the other end of the butt joint frame is connected through bolts; the middle of the sliding disc is inserted with the plug column; and the plug column corresponds to the locking slot.

3. The box girder inner formwork roof slab support truss according to claim 1, wherein The side support mechanism comprises a fixed plate, a fixed rod, a through hole, a sliding block, a fixed column, a side support arm, an adjusting support plate, and a fixed fork; the fixed plate is inserted with the square hole; the top of the fixed plate and the fixed rod are fixedly connected; the fixed rod is provided with a plurality of through holes; the sliding block and the fixed rod are slidably connected; the sliding block is provided with a through hole; the fixed column is inserted in the through hole to fix the fixed rod and the sliding block; one side of the sliding block and the side support arm are movably connected; the side support arm and the adjusting support plate are connected through threads; the top of the fixed rod and one end of the fixed fork are movably connected; and the other end of the fixed fork is fixed through bolts.

4. The box girder inner formwork roof slab support truss according to claim 1, wherein The rotating rod and one end of the adjusting block are provided with hexagonal recesses.

5. A construction method of the box girder inner form roof support truss according to claim 1, characterized in that, The method comprises the following steps: Step 1): manufacturing the top support frame: according to the shape of the top of the box chamber of the bridge, a corresponding top support frame is manufactured, and the top support frame is arranged on the top of the box chamber of the bridge; Mounting with the first sliding rail and the second sliding rail; Step 2): Install the support member: mark the support points according to the measurement, install the support seat at the marked points in turn, and according to the height of the support, determine the number of superposed columns to be installed, and rotate the first bidirectional screw to drive the adjusting arm to rotate, and adjust the support height; Step 3): Reinforce the support member; Install the locking column on the support seat, and install the locking sleeve on the locking column, insert the locking rod into the sliding disc, and then fix the locking rod, and then connect and fix the support seats; Step 4): Reinforce the side of the support member: install the fixed plate on the support seat, install the fixed fork on the superposed column, rotate the adjusting support plate until the adjusting support plate is connected with the side formwork, and reinforce the side of the support mechanism; Step 5): Install the top support frame: adjust the distance between the top support frames according to the distance of the top blocks, adjust the distance between the connecting blocks by rotating the first bidirectional screw, drive the adjusting arm to rotate, and then adjust the distance between the sliding seat and the first support column, after the adjustment is completed, directly install the top support frame on the top block, and install the square wood on the top support frame, and lay the formwork on the square wood.

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