CN112660993A - Box girder falling-prevention stop block mounting system and construction method - Google Patents
Box girder falling-prevention stop block mounting system and construction method Download PDFInfo
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- CN112660993A CN112660993A CN202011605012.9A CN202011605012A CN112660993A CN 112660993 A CN112660993 A CN 112660993A CN 202011605012 A CN202011605012 A CN 202011605012A CN 112660993 A CN112660993 A CN 112660993A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 2
- 238000011900 installation process Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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Abstract
The invention discloses a box girder anti-falling beam stop block mounting system and a construction method, wherein the mounting system comprises hoisting equipment and a material transporting vehicle, the hoisting equipment is arranged in a box girder opening, and the material transporting vehicle is arranged on a bridge pier; the hoisting equipment comprises a hoisting frame, a hoisting tool and a hoisting tool, the hoisting frame is arranged in the beam hole of the box girder, the hoisting tool is arranged on the hoisting frame, and the hoisting tool is connected to the hoisting tool and is located between the pier and the box girder. By matching the hoisting equipment with the material conveying trolley, the hoisting equipment is not continuously occupied in the installation process, and uninterrupted continuous construction is realized; adopt electrical equipment to replace the manpower to prevent transportation and the hoist and mount of roof beam dog that falls, the operation of being convenient for just can once only accomplish the construction, can effectively reduce intensity of labour and promote the efficiency of construction operation.
Description
Technical Field
The invention relates to the technical field of bridge construction equipment, in particular to a box girder anti-falling stop block mounting system and a construction method.
Background
The anti-falling beam stop block is used for reinforcing a bridge and a pier, prevents a beam body from generating transverse or longitudinal displacement under the action of loads such as seismic force, is connected with the beam body anti-falling beam stop block embedded plate through high-strength bolts during installation, is generally provided with 4 anti-falling beam stop blocks on each pier, is arranged beside a pier supporting cushion stone and is close to two sides of the center line of the pier.
The installation of the anti-falling beam stop block is an important process in the construction of the high-speed railway bridge. Because the operation platform above the pier is small, the anti-falling beam stop block is formed by welding steel plates and is heavy, each weight reaches about 225.78Kg, the shape is irregular, workers are very laboursome to install, and certain construction difficulty is achieved. The common method for installing the anti-falling beam stop block is that after the stop block is conveyed to a construction site, workers combine the force to lift the stop block to the position below the beam bottom embedded plate, and then the crowbar is held by hands to install by using the lever principle, so that the labor intensity is high, and the installation efficiency is low. The invention provides a box girder anti-falling stopper mounting system and a construction method, which are used for solving the problems.
Disclosure of Invention
The invention provides a box girder anti-falling stopper mounting system and a construction method, which can be used for realizing the lifting mounting of an anti-falling stopper, are convenient and quick, effectively improve the construction efficiency and reduce the labor intensity.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a box girder anti-falling block mounting system comprises hoisting equipment and a material transporting vehicle, wherein the hoisting equipment is arranged in a box girder hole, and the material transporting vehicle is arranged on a pier; the hoisting equipment comprises a hoisting frame, a hoisting tool and a hoisting tool, wherein the hoisting frame is arranged in the beam hole of the box girder, the hoisting tool is arranged on the hoisting frame, and the hoisting tool is connected to the hoisting tool and is positioned between the pier and the box girder;
the hoisting frame comprises support frames and rails, the rails are erected at the tops of the two support frames, positioning clamps and moving wheels are arranged on the support frames, the positioning clamps are arranged in the middle of the bottoms of the support frames and located between box girder seams, and the moving wheels are located on the bottom surfaces of the support frames.
Furthermore, the positioning clamp comprises a clamping frame, a limiting rod, a spring, a fixing rod and a supporting rod; the clamping frame is movably connected to the support frame through the limiting rod and the fixing rod, the clamping frame is located below the support frame, the spring sleeve is arranged on the limiting rod and located below the support frame, the supporting rod is movably connected to the support frame, and the top end of the supporting rod is supported below the top end of the fixing rod.
Furthermore, the limiting rod and the fixed rod penetrate through the bottom rod of the support frame to be connected with the clamping frame, the top end of the limiting rod is provided with a limiting threaded sleeve, the top end of the fixed rod is provided with a support plate, the bottom end of the support rod is hinged to the bottom rod of the support frame, and the top end of the support rod is supported under the support plate.
Further, the clamping frame comprises two clamping plates and a connecting rod, the two clamping plates are obliquely arranged and are symmetrically arranged and are in contact with the edge of the box girder seam, and the connecting rod is arranged between the two clamping plates and is fixedly connected with the limiting rod and the fixing rod.
Furthermore, the two limiting rods are arranged and located on two sides of the fixing rod, and the limiting rods and the fixing rod are located on the same plane and are parallel to the plane where the support frame is located.
Further, the lifting tool comprises an electric hoist, a steel wire rope, a hook and a pulley, the electric hoist is movably connected to the rail through the pulley, the top end of the steel wire rope is connected to the electric hoist, and the hook is arranged at the bottom end of the steel wire rope.
Preferably, the limiting rod is provided with a spring, and the spring is located below the support frame and is in a compressed state.
Further, the hoist includes hoist rope and gallows, the gallows passes through the hoist rope to be connected on lifting by crane instrument, the gallows includes jib and hitch bolt, the jib sets up two, the both ends of hitch bolt are connected respectively on two jibs, the hitch bolt sets up two, is located the both ends of jib respectively.
Furthermore, a limiting ring is arranged on the hanging rod, and the hoisting rope is located in the limiting ring.
A construction method of a box girder anti-falling block mounting system comprises the following steps:
s1, preparation: hoisting equipment and a stop block into a box girder opening, and hoisting a material conveying vehicle onto a pier to complete preparation work;
s2, block hoisting: connecting the hanging frame with the stop block, starting a hoisting tool to hoist the stop block after the stop block is stabilized, and moving the hanging frame by an operator in the beam hole to move the stop block to the seam of the box beam together;
s3, device stabilization: after aligning the hoisting frame with the box girder seam, an operator pulls the supporting rod open, the positioning card resets and is clamped into the box girder seam to clamp and fix the hoisting frame at the box girder seam;
s4, lowering a block: an operator in the beam hole starts the hoisting tool to put the stop dog down from the box girder seam and fall onto a material transporting vehicle arranged on the pier, then the operator on the pier unloads the stop dog from the hanger 32, moves the material transporting vehicle and the stop dog to the installation position and directly installs the stop dog;
s5, continuously constructing: in step S4, while the stopper is detached from the hanger and mounted, the operator in the beam hole retracts the hanger and retracts the locator card, and then the hanger is moved to continue to lift and lower the stopper at the next box beam seam until the construction is completed.
The invention has the following beneficial effects:
by matching the hoisting equipment with the material conveying trolley, the hoisting equipment is not continuously occupied in the installation process, and uninterrupted continuous construction is realized; the electric equipment is adopted to replace manpower to transport and hoist the anti-falling beam stop block, so that the operation is convenient, the construction can be completed at one time, the labor intensity can be effectively reduced, and the efficiency of construction operation can be improved;
the positioning card is arranged to clamp and fix the equipment in the box girder seam, so that automatic centering and automatic clamping are realized, the stability of the equipment during working is ensured, and the safety of the operation process is further ensured.
Drawings
FIG. 1 is a front view of the present invention in use;
FIG. 2 is a schematic view of the setting state of the hoisting equipment of the invention;
FIG. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is a schematic structural view of a hoisting frame of the present invention;
FIG. 5 is a schematic view of a positioning card according to the present invention;
FIG. 6 is a schematic view of the use state of the locator card of the present invention;
FIG. 7 is a front view of the detent card of the present invention in a locked state;
fig. 8 is a schematic view of the spreader structure of the present invention.
Reference numerals: 1-hoisting frame, 11-supporting frame, 12-track, 13-positioning clamp, 131-clamping frame, 132-limiting rod, 133-spring, 134-fixing rod, 135-supporting rod, 2-hoisting tool, 3-hoisting tool, 31-hoisting rope, 32-hoisting frame, 321-hoisting rod and 322-connecting bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1, 2 and 3, the box girder anti-falling stop block mounting system comprises a hoisting device and a material transporting vehicle, wherein the hoisting device is arranged in a box girder opening, and the material transporting vehicle is arranged on a pier; hoisting equipment includes hoist and mount frame 1, lifting by crane instrument 2 and hoist 3, hoist and mount frame 1 is established in the case roof beam hole, lifting by crane instrument 2 and establishing on hoist and mount frame 1, hoist 3 is connected on lifting by crane instrument 2, is located between pier and the case roof beam.
As shown in fig. 3 and 4, the hoisting frame 1 comprises support frames 11 and rails 12, the rails 12 are arranged at the tops of the two support frames 11, the support frames 11 are provided with positioning clamps 13 and moving wheels, the positioning clamps 13 are arranged in the middle of the bottoms of the support frames 11 and located between box girder seams, and the moving wheels are located on the bottom surfaces of the support frames 11.
As shown in fig. 5, 6 and 7, further, the positioning card 13 includes a card frame 131, a limiting rod 132, a spring 133, a fixing rod 134 and a supporting rod 135; the clamping frame 131 is movably connected to the support frame 11 through a limiting rod 132 and a fixing rod 134, the clamping frame 131 is located below the support frame 11, the spring 133 is sleeved on the limiting rod 132 and located below the support frame 11, the supporting rod 135 is movably connected to the support frame 11, and the top end of the supporting rod is supported below the top end of the fixing rod 134.
As shown in fig. 5, 6 and 7, the function of the positioning card 13 is as follows: when using, dial out bracing piece 135 from dead lever 134 down for dead lever 134 loses the support, then under the effect that spring 133 kick-backed, promote locator card 13 downstream, when locator card 13 downstream, card frame 131 contacts with the stupefied contact in limit of case roof beam seam, and under the effect of spring thrust, force card frame 131 to continue downwards, until the cardboard of both sides all with the stupefied contact in two limits of case roof beam seam and the card solid, carry out spacing fixed to hoisting frame 1, guarantee hoisting frame 1 remain stable among the hoist and mount process.
The operation method of the locator card 13 is as follows: when the positioning clamp 13 is pulled open, an operator pulls the support rod 135 outward to pull out the range of the fixed rod 134, and the clamp frame 131 automatically falls and is clamped in the box girder gap under the action of the spring 133; when recovering the locator card 13, the operator manually lifts up the fixing rod 134, and then pulls back the supporting rod 135 to be supported under the fixing rod 134, and supports the fixing rod 134, so that the hoist frame 1 is in a free state.
As shown in fig. 5 and 7, further, the limiting rod 132 and the fixing rod 134 penetrate through the bottom rod of the support frame 11 to be connected with the clamping frame 131, the top end of the limiting rod 132 is provided with a limiting threaded sleeve, the top end of the fixing rod 134 is provided with a support plate, the bottom end of the support rod 135 is hinged to the bottom rod of the support frame 11, and the top end of the support rod is supported under the support plate.
Preferably, the bottom end of the supporting rod 135 is provided with a hinged support, and the top end thereof is provided with a pulley. The hinged support is arranged to rotate, and the pulley is arranged to facilitate the shifting and resetting of the support rod 135 and the support plate.
Further, the clamping frame 131 comprises two clamping plates and a connecting rod, the two clamping plates are obliquely arranged and symmetrically arranged and are in contact with the edge of the box girder seam, and the connecting rod is arranged between the two clamping plates and is fixedly connected with the limiting rod 132 and the fixing rod 134.
As shown in fig. 5, two limiting rods 132 are further provided and located at two sides of the fixing rod 134, and the limiting rods 132 and the fixing rod 134 are located on the same plane and are parallel to the plane where the support frame 11 is located. The fixing rod 134 is used for limiting the orientation of the positioning card 13, and avoids the failure of the function caused by the turning of the card frame 131 due to stress.
As shown in fig. 3, further, the lifting tool 2 includes an electric block, a steel wire rope, a hook and a pulley, the electric block is movably connected to the rail 12 through the pulley, the top end of the steel wire rope is connected to the electric block, and the hook is arranged at the bottom end of the steel wire rope.
As shown in fig. 5, preferably, a spring 133 is disposed on the limiting rod 132, and the spring 133 is located below the bracket frame 11 and is in a compressed state.
As shown in fig. 8, the hanger 3 further includes a hoisting rope 31 and a hanger 32, the hanger 32 is connected to the hoisting tool 2 through the hoisting rope 31, the hanger 32 includes two suspenders 321 and two connection bolts 322, two ends of the two suspenders 321 are respectively connected to the two suspenders 321, and two connection bolts 322 are respectively located at two ends of the suspenders 321.
Furthermore, a limiting ring is arranged on the hanging rod 321, and the hoisting rope 31 is located in the limiting ring.
Preferably, the height of the stop block is equal to the height of the installation height when the stop block is placed on the material conveying vehicle.
Preferably, the material transporting vehicle is of a frame structure formed by welding angle steel, and a steel plate platform is welded on the top surface of the material transporting vehicle.
A construction method of a box girder anti-falling block mounting system comprises the following steps:
s1, preparation: hoisting equipment and a stop block into a box girder opening, and hoisting a material conveying vehicle onto a pier to complete preparation work;
s2, block hoisting: connecting the lifting frame 32 with the stop block, starting the lifting tool 2 to lift the stop block after the stop block is stabilized, and moving the lifting frame 1 by an operator in the beam hole to move the stop block to the box beam seam;
s3, device stabilization: after the hoisting frame 1 is aligned to the box girder seam, an operator pulls the support rod 135 open, the positioning card 13 resets and is clamped into the box girder seam to clamp and fix the hoisting frame 1 at the box girder seam;
s4, lowering a block: an operator in the beam hole starts the lifting tool 2 to put the stop dog down from the box girder seam and fall onto a material transporting vehicle arranged on the pier, then the operator on the pier unloads the stop dog from the hanger 32, moves the material transporting vehicle and the stop dog to the installation position and directly installs the stop dog;
s5, continuously constructing: in step S4, while the stopper is detached from the hanger 32 and installed, the operator in the beam hole retracts the hanger 3 and retracts the locator card 13, and then the hoisting frame 1 is moved to continue hoisting and lowering the stopper at the next box beam seam until the construction is completed.
Preferably, during construction, a hoisting device is arranged in the box girder opening, and 2-4 material conveying vehicles are arranged on each pier and are arranged on two sides of the pier.
Preferably, in the steps S4 and S5, when the operator in the beam hole hoists and puts the stopper down on two piers, the stopper is hoisted and placed on the material transporting vehicle of one pier, then the operator on the pier carries out installation operation, and meanwhile, the operator in the beam hole continues to hoist the stopper and place the stopper on the material transporting vehicle of another pier, so that the waiting time of hoisting equipment is not occupied, the construction efficiency is improved, and the cost is saved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (10)
1. A box girder anti-falling block mounting system is characterized by comprising hoisting equipment and a material transporting vehicle, wherein the hoisting equipment is arranged in a box girder opening, and the material transporting vehicle is arranged on a pier; the hoisting equipment comprises a hoisting frame (1), a hoisting tool (2) and a hoisting tool (3), wherein the hoisting frame (1) is arranged in a box girder opening, the hoisting tool (2) is arranged on the hoisting frame (1), and the hoisting tool (3) is connected to the hoisting tool (2) and is positioned between a pier and a box girder;
the hoisting frame (1) comprises support frames (11) and rails (12), the rails (12) are erected at the tops of the two support frames (11), positioning clamps (13) and moving wheels are arranged on the support frames (11), the positioning clamps (13) are arranged in the middle of the bottom of the support frames (11) and located between box girder seams, and the moving wheels are located on the bottom surfaces of the support frames (11).
2. The box girder anti-drop block mounting system according to claim 1, wherein: the positioning clamp (13) comprises a clamp frame (131), a limiting rod (132), a spring (133), a fixing rod (134) and a supporting rod (135); the clamping frame (131) is movably connected to the support frame (11) through a limiting rod (132) and a fixing rod (134), the clamping frame (131) is located below the support frame (11), the spring (133) is sleeved on the limiting rod (132) and located below the support frame (11), the supporting rod (135) is movably connected to the support frame (11), and the top end of the supporting rod is supported below the top end of the fixing rod (134).
3. The box girder anti-drop block mounting system according to claim 2, wherein: the limiting rod (132) and the fixing rod (134) penetrate through the bottom rod of the support frame (11) and are connected with the clamping frame (131), the top end of the limiting rod (132) is provided with a limiting threaded sleeve, the top end of the fixing rod (134) is provided with a supporting plate, the bottom end of the supporting rod (135) is hinged to the bottom rod of the support frame (11), and the top end of the supporting rod is supported under the supporting plate.
4. The box girder anti-drop block mounting system according to claim 2, wherein: the clamping frame (131) comprises two clamping plates and a connecting rod, the two clamping plates are obliquely arranged and symmetrically arranged and are in contact with the edge of the box girder seam, and the connecting rod is arranged between the two clamping plates and is fixedly connected with a limiting rod (132) and a fixing rod (134).
5. The box girder anti-drop block mounting system according to claim 2, wherein: the two limiting rods (132) are arranged and located on two sides of the fixing rod (134), and the limiting rods (132) and the fixing rod (134) are located on the same plane and are parallel to the plane where the support frame (11) is located.
6. A box girder anti-drop block mounting system according to claim 3, wherein: the limiting rod (132) is provided with a spring (133), and the spring (133) is located below the support frame (11) and is in a compressed state.
7. The box girder anti-drop block mounting system according to claim 1, wherein: the hoisting tool (2) comprises an electric hoist, a steel wire rope, a hook and a pulley, the electric hoist is movably connected to the rail (12) through the pulley, the top end of the steel wire rope is connected to the electric hoist, and the hook is arranged at the bottom end of the steel wire rope.
8. The box girder anti-drop block mounting system according to claim 1, wherein: the lifting appliance (3) comprises a lifting rope (31) and a lifting frame (32), the lifting frame (32) is connected to the lifting tool (2) through the lifting rope (31), the lifting frame (32) comprises a lifting rod (321) and a connecting bolt (322), the lifting rod (321) is provided with two ends, the two ends of the connecting bolt (322) are respectively connected to the two lifting rods (321), and the connecting bolt (322) is provided with two ends which are respectively located at the two ends of the lifting rod (321).
9. The box girder drop prevention block mounting system according to claim 8, wherein: the hanger rod (321) is provided with a limit ring, and the hoisting rope (31) is positioned in the limit ring.
10. A method of constructing a box girder falling prevention block installation system according to any one of claims 1 to 9, comprising the steps of:
s1, preparation: hoisting equipment and a stop block into a box girder opening, and hoisting a material conveying vehicle onto a pier to complete preparation work;
s2, block hoisting: connecting the lifting frame (32) with the stop block, starting the lifting tool (2) to lift the stop block after the stop block is stabilized, and moving the lifting frame (1) by an operator in the beam hole to move the stop block to the position of the box beam seam;
s3, device stabilization: after the hoisting frame (1) is aligned to the box girder seam, an operator pulls open the supporting rod (135), the positioning card (13) is reset and clamped into the box girder seam to clamp and fix the hoisting frame (1) at the box girder seam;
s4, lowering a block: an operator in the beam hole starts the lifting tool (2) to put the stop dog down from the box girder seam and fall onto a material transporting vehicle arranged on the pier, then the operator on the pier unloads the stop dog from the hanger (32), moves the material transporting vehicle and the stop dog to the installation position, and directly installs the stop dog;
s5, continuously constructing: in the step S4, when the stop block is dismounted from the hanger (32) and mounted, an operator in the beam hole withdraws the hanger (3) and withdraws the positioning card (13), and then the lifting frame (1) is moved to continue to lift and lower the stop block at the next box girder seam until the construction is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605012.9A CN112660993B (en) | 2020-12-30 | 2020-12-30 | Box girder falling-prevention stop block mounting system and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605012.9A CN112660993B (en) | 2020-12-30 | 2020-12-30 | Box girder falling-prevention stop block mounting system and construction method |
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| Publication Number | Publication Date |
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| CN112660993A true CN112660993A (en) | 2021-04-16 |
| CN112660993B CN112660993B (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011605012.9A Active CN112660993B (en) | 2020-12-30 | 2020-12-30 | Box girder falling-prevention stop block mounting system and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115402922A (en) * | 2022-08-02 | 2022-11-29 | 中铁十局集团第八工程有限公司 | Special lifting appliance device for mounting anti-falling beam stop block of railway box beam and using method |
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| JP2000290934A (en) * | 1999-04-07 | 2000-10-17 | Oriental Construction Co Ltd | Jack lever device for removing floor slab |
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| Publication number | Publication date |
|---|---|
| CN112660993B (en) | 2022-11-18 |
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