CN113215991B - Rapid steel box girder erection device and construction method thereof - Google Patents

Abstract

The application relates to a quick steel box girder erection device and a construction method thereof, aiming at solving the technical problem that the construction period is prolonged due to the lower moving efficiency of the steel box girder, the quick steel box girder erection device comprises a plurality of pushing supports and a dragging support, wherein pushing driving pieces are installed on the pushing supports, sliding rails are arranged at the bottoms of the pushing driving pieces, and pushing driving pieces for driving the pushing driving pieces to move along the sliding rails are arranged at one ends of the sliding rails; install the counter-force roof beam on the dilatory support, be provided with the counter-force rope cable that passes the counter-force roof beam on the counter-force roof beam, be located the counter-force roof beam and keep away from dilatory driving piece and the fixed beam that pushes away driving piece one side, the counter-force rope cable is installed in the fixed beam, dilatory driving piece is used for supporting and presses the fixed beam in order taut counter-force rope cable, the one end that the counter-force rope cable kept away from dilatory driving piece is provided with the erection support who is used for installing on the steel box girder, this application still discloses a steel box girder erects the construction method of device fast. This application has the removal efficiency that improves steel box girder in order to shorten construction cycle's effect.

Description

Rapid steel box girder erection device and construction method thereof

Technical Field

The application relates to the field of bridge construction, in particular to a quick erecting device for a steel box girder and a construction method thereof.

Background

The box girder of the reinforced concrete structure is divided into a prefabricated box girder and a cast-in-place box girder. The prefabricated bridge is generally prefabricated in a prefabricated part factory and then transported to the bridge to be installed on site through equipment; and cast-in-place box girders are mostly used for large continuous bridges. Common box girders can be divided into prestressed reinforced concrete box girders and steel box girders by materials. The prestressed reinforced concrete box girder is constructed on site, and transverse prestress is also arranged in some cases besides longitudinal prestress; the steel box girder is generally processed in a factory and then transported to a site for installation, and has an all-steel structure and a partially reinforced concrete pavement layer. The steel box girder is also called steel plate box girder, and is a common structural form of a large-span bridge. Generally used on bridges with large span. The outer shape is like a box and is called a steel box girder. The walking jacking method is a method for erecting a box girder in bridge construction, and has the characteristics of high safety, stable jacking, convenient axis adjustment and capability of ensuring the passing of bottom lines.

In the related art, chinese patent No. CN108457188B discloses a walking multi-point synchronous pushing construction method, which comprises the following specific construction methods: the method comprises the following steps: construction preparation, step two: construction of a pushing platform and a temporary pier, and the third step: installing and debugging the walking type pushing equipment, and step four: assembling the guide beam and the back support, and the fifth step: assembling steel beams, and the sixth step: and pushing the steel beam. The walking multi-point synchronous pushing construction method adopts a plurality of walking pushing devices, reduces the requirements on vertical supporting force of the temporary piers and horizontal jacks of the pushing devices, realizes self-balance of structures at pushing fulcrums, theoretically does not generate horizontal force on the temporary piers and the pushing platforms, reduces structural rigidity of the temporary piers and the pushing platforms, reduces section bar investment, and solves the problem that the pier passing auxiliary measures of the traditional construction method are more by rotating the pushing steel beams around point rigid bodies in the pushing process by utilizing the characteristic that the walking pushing devices can be vertically adjusted.

In view of the above-mentioned related art, the inventor believes that there is a defect that the construction period is extended due to low moving efficiency of the steel box girder in the above construction method.

Disclosure of Invention

In order to improve the erection efficiency of the steel box girder, the application provides a quick erection device of the steel box girder and a construction method thereof.

First aspect, the application provides a quick handing equipment of steel case roof beam, adopts following technical scheme:

a steel box girder rapid erection device comprises a plurality of pushing supports and a dragging support, wherein pushing driving pieces are mounted on the pushing supports, sliding rails are arranged at the bottoms of the pushing driving pieces, and pushing driving pieces driving the pushing driving pieces to move along the sliding rails are arranged at one ends of the sliding rails; the steel box girder traction device is characterized in that a counter-force beam is installed on the traction support, a counter-force rope penetrating through the counter-force beam, a traction driving piece and a fixed beam are arranged on the counter-force beam and far away from one side of the traction driving piece, the traction driving piece and the fixed beam are located on the side, away from the pushing driving piece, of the counter-force beam, the counter-force rope is installed in the fixed beam, the traction driving piece is used for abutting against the fixed beam to tension the counter-force rope, and an installation support used for being installed on the steel box girder is arranged at one end, away from the traction driving piece, of the counter-force rope.

By adopting the technical scheme, after the pushing driving part jacks up the steel box girder, the pushing driving part pushes the pushing driving part to slide in the slide rail, and the steel box girder is pressed on the pushing driving part under the action of gravity, so that the pushing driving part can drive the steel box girder to slide in the slide rail, and the steel box girder can move; and the dilatory driving piece of dilatory shelf location provides the counter-force and dilatory counter-force rope through the counter-force roof beam, because the rope is fixed on erection support and erection support fixes on the steel box girder, therefore dilatory driving piece can pass through the counter-force rope and drag the steel box girder and move towards the counter-force support, under the effect of promotion and pulling force, the drive power that the steel box girder received is bigger, therefore the efficiency of removal is higher to the efficiency that the steel box girder erect has been improved.

Preferably, an offset detection device is arranged at one end, facing the reaction beam, of the mounting support, the offset detection device is used for detecting the offset of the mounting support in the moving process of the steel box girder, an offset display device is arranged on the surface, facing away from the mounting support, of one side of the reaction beam, the offset display device is electrically connected with a control device, and the offset detection device is electrically connected with the control device so as to transmit the offset of the steel box girder in the moving process to the control device.

Through adopting above-mentioned technical scheme, skew detection device's setting can detect the offset of steel box girder at the in-process that the steel box girder removed, and skew display device is used for detecting gained offset transmission for controlling means with skew detection device to show through controlling means control skew display device, thereby the operating personnel of being convenient for adjusts.

Preferably, the displacement detecting means includes a laser emitting device mounted on the mounting bracket, a laser detecting device mounted on the reaction beam, and a distance calculating device mounted on the reaction beam, the distance calculating device being electrically connected to the control device.

By adopting the technical scheme, the laser emitting device can emit laser, the laser detection devices can detect the laser, each laser detection device corresponds to one position, and the distance calculation device calculates the offset position of the laser generating device based on the moving path of the laser emitted by the laser emitting device, so that the offset of the steel box girder in the vertical or horizontal direction can be clearly obtained.

Preferably, the pushing driving part is provided with a sliding block at the bottom, the sliding block is provided with a driving block at the bottom, the slide rail is provided with a sliding chute for the sliding block and the driving block to slide, one side of the sliding block is provided with a deviation-rectifying driving part for driving the pushing driving part to move along the direction perpendicular to the slide rail, and the deviation-rectifying driving part is electrically connected to the control device.

By adopting the technical scheme, the deviation rectifying driving piece is electrically connected to the control device so as to be controlled by the control device, and the control device controls the deviation rectifying driving piece to extend, so that the deviation rectifying driving piece is driven to move in the direction perpendicular to the sliding rail, and the deviation of the steel box girder in the horizontal direction can be automatically corrected.

Preferably, a mounting plate for mounting the laser detection device is arranged on the reaction beam, an adjusting electric cylinder is arranged on one side of the reaction beam close to the mounting plate, and the adjusting electric cylinder is electrically connected with the control device to receive data detected by the laser detection device.

Through adopting above-mentioned technical scheme, adjust the position that the mounting panel can be adjusted to the electric jar, because the displacement of erection support in vertical side can take place when the steel box girder is jack-up, therefore through the regulation of adjusting the electric jar to the central point that makes the laser that laser emission device sent put can adjust to the mounting panel puts, thereby is convenient for practice thrift the required quantity of displacement on the later stage skew detection device detection horizontal direction.

Preferably, the reaction rope is symmetrically provided with two along the central axis of the mounting support in the width direction, and each reaction rope is provided with a dragging driving part.

Through adopting above-mentioned technical scheme, two counter-force ropes not only can share the pulling force to erection support, can also make the pulling force on the erection support both sides can keep balance, when reducing that the erection support removes the in-process because of the focus skew city down, can also alleviate the skew of steel box girder in the horizontal plane.

Preferably, a plurality of anchoring holes are formed in two ends of the fixed beam, a plurality of anchoring blocks are arranged in the anchoring holes, the anchoring blocks are located on the outer side wall of the counterforce cable, and a guide inclined plane inserted into the anchoring holes is formed in one end of each anchoring block.

Through adopting above-mentioned technical scheme, dilatory driving piece promotes fixed roof beam, and fixed roof beam removes towards the direction of keeping away from dilatory driving piece, and because the anchor block is inserted and is established in the anchor hole and the anchor block surface is provided with the direction inclined plane, therefore the anchor block is held reaction rope tightly under the anchor hole butt of fixed roof beam to be convenient for fix reaction rope in fixed roof beam fast.

Preferably, the top of the pushing driving part is provided with a bearing plate, a protective rubber pad is arranged on the surface of the bearing plate, which is far away from the pushing driving part, and an anti-skidding groove is formed in the surface of the protective rubber pad.

Through adopting above-mentioned technical scheme, the setting of accepting the board has increased the area of contact that pushes away driving piece and steel box girder, and the setting of protection rubber pad has then formed the one deck protective layer on the surface of accepting the board to protect the steel box girder, the setting of anti-skidding recess has increased the friction on protection rubber pad surface, thereby has improved the stability that pushes away the driving piece steel box girder when jacking steel box girder.

In a second aspect, the application provides a construction method applied to a quick erection device for steel box girders, which adopts the following technical scheme:

a construction method of a steel box girder rapid erection device comprises the following steps:

building a pushing support and a dragging support, installing a slide rail on the pushing support, and installing a counterforce beam on the dragging support;

hoisting the steel box girder, and mounting a mounting support at one end of the steel box girder close to the dragging support;

anchoring the counterforce rope on the mounting support, and then installing the counterforce rope on the counterforce beam in a penetrating way;

controlling the pushing driving piece to jack the steel box girder, then simultaneously starting the pushing driving piece and the dragging driving piece, and continuously repeating the steps until the box girder is moved to a preset position; and

and (4) dismantling the mounting support, the sliding rail and the counterforce beam, dismantling the pushing support and the dragging support, and completing erection.

By adopting the technical scheme, after the pushing driving piece jacks up the steel box girder, the pushing driving piece pushes the pushing driving piece to slide in the slide rail, and the steel box girder is pressed on the pushing driving piece under the action of gravity, so that the pushing driving piece can drive the steel box girder to slide in the slide rail, and the steel box girder can move; and the dilatory driving piece of dilatory shelf location provides the counter-force and dilatory reaction rope cable through the reaction beam, because the rope cable is fixed on erection support and erection support fixes on the steel box girder, therefore dilatory driving piece can drag the steel box girder through the reaction rope cable and move towards the reaction support, under the effect of promotion and pulling force, the drive power that the steel box girder received is bigger, therefore the efficiency of removal is higher to the efficiency that the steel box girder erect has been improved.

Preferably, the controlling the pushing driving member to jack up the steel box girder, and then simultaneously starting the pushing driving member and the pulling driving member to move the box girder to the predetermined position includes:

starting the pushing driving piece to jack the steel box girder;

the offset detection device detects the movement amount of the steel box girder in the vertical direction, and the control device controls the mounting plate to move by the corresponding movement amount, so that the laser emitted by the laser emitting device is positioned on the center line of the bearing plate in the height direction;

starting a pushing driving piece and a dragging driving piece, and detecting the offset of the steel box girder in the horizontal direction through a laser detection device in the advancing process of the steel box girder;

the control device controls the deviation rectifying driving piece to rectify the deviation of the steel box girder; and the number of the first and second groups,

and continuously repeating the steps until the steel box girder is moved to a preset position.

By adopting the technical scheme, the offset of the steel box girder in the moving process is detected through the offset detection device, and the control device controls the deviation-rectifying driving piece to rectify the deviation, so that the stability and the accuracy of the steel box girder in the butt joint process are ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the technology that the pushing driving piece, the sliding rail, the pushing driving piece, the bearing plate, the protective rubber pad, the anti-skidding groove, the counter-force beam, the counter-force rope, the dragging driving piece, the fixed beam, the anchoring hole, the anchoring block, the guide inclined plane and the mounting support are matched is adopted, so that the moving efficiency of the steel box beam is improved, and the construction period is shortened;

2. the offset detection device, the offset display device, the laser emitting device, the laser detection device and the distance calculation device are matched, so that the offset of the steel box girder in the moving process can be conveniently detected and displayed;

3. through adopting the technique that the hole that slides, drive block, spout, the driving piece that rectifies, controlling means, mounting panel and regulation electric cylinder cooperate to be convenient for carry out the automatic correction to the offset.

Drawings

Fig. 1 is a schematic structural diagram of a main body of a device for quickly erecting a steel box girder according to an embodiment of the application;

FIG. 2 is an exploded view of an embodiment of the present application for revealing structure at the jacking leg;

FIG. 3 is an exploded view of an embodiment of the present application for showing a structure at a slide rail;

FIG. 4 is a schematic view of an embodiment of the present application for showing the structure of the mounting stand and the towing bracket;

FIG. 5 is a schematic view of an embodiment of the present application for revealing structure at a towing bracket;

fig. 6 is an exploded view for revealing a structure at a fixed beam in the embodiment of the present application.

Description of the reference numerals: 1. pushing the bracket; 10. a support pillar; 11. a slide rail; 111. a chute; 1111. a slide hole; 1112. a pushing drive member; 112. a sliding block; 1121. a drive block; 1122. a deviation rectifying driving part; 1123. pushing the plate; 1124. a carrier plate; 12. pushing the driving piece; 121. a bearing plate; 122. protecting the rubber pad; 1221. an anti-slip groove; 13. mounting a support; 131. a fixing rod; 1311. a fixed block; 2. dragging the bracket; 20. a support beam; 21. a reaction cable; 22. a counter-force beam; 220. a fixing hole; 221. adjusting an electric cylinder; 222. mounting a plate; 223. an offset display device; 224. pulling the drive member; 23. a fixed beam; 231. an anchoring hole; 232. an anchoring block; 2321. a guide slope; 3. an offset detection device; 31. a laser emitting device; 32. a laser detection device; 33. a distance calculation device; 4. and a control device.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses quick erection device of steel case roof beam. Referring to fig. 1, the quick erection device for the steel box girder comprises a plurality of pushing supports 1 and a dragging support 2, wherein the pushing supports 1 and the dragging support 2 are fixed on the ground through cast-in-place piles. A bearing platform is poured on the ground, and a supporting column 10 for supporting the steel box girder is installed on the bearing platform. The pushing support 1 and the dragging support 2 are respectively positioned at two ends of the position to be erected of the steel box girder, and are both temporary construction supports which are dismantled after construction is completed. The pushing support 1 and the dragging support 2 are composed of a foundation poured in the ground and supporting columns 10, and supporting rods are installed between the supporting columns 10 through bolts to improve strength.

Referring to fig. 1 and 2, a sliding rail 11 is installed on the pushing support 1 through a bolt, a sliding groove 111 is formed in the sliding rail 11, a sliding hole 1111 is formed in the bottom wall of the sliding groove 111, a pushing driving part 1112 is installed in the sliding hole 1111 in the length direction, the pushing driving part 1112 can be an oil cylinder, and a piston rod of the oil cylinder is inserted into the sliding hole 1111 and stretches along the length direction of the sliding hole 1111. A sliding block 112 is connected to the sliding groove 111 in a sliding manner along the length direction, a driving block 1121 is fixed to the bottom wall of the sliding block 112 by welding, and the driving block 1121 is fixed to a piston rod of the pushing driving element 1112 by welding so that the driving block 1121 is connected to the sliding hole 1111 in a sliding manner along the length direction of the sliding hole 1111.

Referring to fig. 2 and 3, a deviation correcting driving member 1122 is installed on one side wall of the top of the sliding block 112, and the deviation correcting driving member 1122 may be an oil cylinder. The deviation-correcting driving member 1122 extends and retracts along a direction perpendicular to the sliding rail 11, a piston rod of the deviation-correcting driving member 1122 is provided with a push plate 1123, the bottom of the push plate 1123 is integrally formed with a bearing plate 1124, and the top wall of the bearing plate 1124 is provided with a pushing driving member 12. The bottom wall of the bearing plate 1124 is attached to the bottom wall of the sliding slot 111, and the deviation-correcting driving member 1122 drives the pushing plate 1123 and the bearing plate 1124 to move together, so as to drive the pushing driving member 12 to move along the width direction of the sliding rail 11.

Referring to fig. 2 and 3, the top of the piston rod of the pushing driving member 12 is welded and fixed with a receiving plate 121, two pushing driving members 12 are arranged along the length direction of the slide rail 11, and the two pushing driving members 12 are connected to the same receiving plate 121. A plurality of protective rubber pads 122 are fixedly adhered to the surface of the receiving plate 121 away from the pushing driving member 12, the shape and size of the protective rubber pads 122 are the same as those of the receiving plate 121, anti-skid grooves 1221 are formed in the surface of the protective rubber pads 122, and the anti-skid grooves 111 extend along the width direction of the protective rubber pads 122 and are uniformly arranged along the length direction.

Referring to fig. 1, a mounting support 13 is mounted at one end of the steel box girder close to the towing bracket 2 through bolts, and the mounting support 13 comprises support rods at two sides and a connecting rod between the support rods. One end of the mounting support 13, which is far away from the steel box girder, is fixedly welded with two reaction cables 21, the two reaction cables 21 are symmetrically arranged along the central axis of the mounting support 13 in the width direction, and one end of the reaction cable 21, which is far away from the mounting support 13, is fixed on the dragging support 2 so as to apply a moving acting force to the mounting support 13 through the dragging support 2 by means of the reaction cables 21.

Referring to fig. 4, the mounting bracket 13 is mounted with a deviation detecting device 3 toward one end of the towing bracket 2, and the deviation detecting device 3 includes a laser emitting device 31 mounted on the mounting bracket 13, a laser detecting device 32 mounted on the towing bracket 2, and a distance calculating device 33 mounted on the towing bracket 2. The end of the mounting bracket 13 facing the towing bracket 2 is provided with a fixing rod 131 through a bolt, the middle position of the fixing rod 131 is provided with a fixing block 1311 through a bolt, and the laser emitting device 31 is arranged on the fixing block 1311 through a bolt. The laser emitting device 31 may be a laser emitter, which emits laser light to the laser detecting device 32 for detection, and the distance calculating device 33 can calculate the offset amount of the mounting bracket 13.

Referring to fig. 5, support beams 20 are welded and fixed to both sides of the towing bracket 2, and reaction beams 22 are mounted on the tops of the support beams 20 by bolts. An adjusting electric cylinder 221 is installed on one side, facing the mounting support 13, of the reaction beam 22 through bolts, an installation plate 222 for installing the laser detection device 32 is installed on a sliding block of the adjusting electric cylinder 221 through bolts, and the laser detection device 32 is tightly arranged on the surface of the installation plate 222 along the central axis of the installation plate 222 in the height direction and the length direction, so that a cross shape is formed.

Referring to fig. 5 and 6, the distance calculating device 33 may be an industrial computer, the distance calculating device 33 is electrically connected to the control device 4, the control device 4 may be a PLC controller, and the distance calculating device 33 transmits the offset distance detected by the offset detecting device 3 to the control device 4.

Referring to fig. 3 and 6, an offset display device 223 is mounted on a surface of the reaction force beam 22 facing away from the mounting bracket 13 by bolts, and the offset display device 223 is electrically connected to the control device 4. The deviation detection device 3 is electrically connected to the control device 4 to transmit the deviation amount of the steel box girder in the moving process to the control device 4, and the control device 4 controls the deviation display device 223 to display. The adjusting electric cylinder 221 is electrically connected to the control device 4 to receive the data detected by the laser detection device 32 and control the mounting plate 222 to move the mounting support 13 by the same height, and the deviation rectifying driving member 1122 is electrically connected to the control device 4 to be controlled by the control device 4 to adjust the offset of the steel box girder in the horizontal direction.

Referring to fig. 5 and 6, fixing holes 220 for the reaction force cables 21 to pass through are formed at two ends of the reaction force beam 22, a dragging driving member 224 is installed on a surface of one side of the reaction force beam 22 opposite to the mounting support 13, the dragging driving member 224 may be a center-through jack, and each reaction force cable 21 is provided with one dragging driving member 224.

Referring to fig. 6, the piston rod of the drag driving member 224 is provided with a fixed beam 23, two ends of the fixed beam 23 are provided with a plurality of anchoring holes 231, the number of the anchoring holes 231 may be two, and the reaction force cable 21 is provided to penetrate through the anchoring holes 231. A plurality of anchor blocks 232 are inserted into the anchor holes 231, the end faces of the anchor blocks 232 are fan-shaped, and the anchor blocks 232 are spliced to form a circle. The anchor block 232 is located on the outer side wall of the reaction force cable 21, and one end of the anchor block 232 is cut to form a guide slope 2321 inserted into the anchor hole 231. The reaction cable 21 is mounted in the fixed beam 23 and the pull actuator 224 presses against the fixed beam 23 to tighten the reaction cable 21 and thereby pull the mounting bracket 13.

The embodiment of the application also discloses a construction method of the quick erection device for the steel box girder. The construction method of the steel box girder rapid erection device comprises the following steps:

s100, building a pushing support 1 and a dragging support 2, installing a slide rail 11 on the pushing support 1, and installing a counterforce beam 22 on the dragging support 2;

drilling a cast-in-place pile hole on the ground, pouring a foundation, mounting a pushing support 1 and a dragging support 2 on the foundation, mounting a slide rail 11 on the pushing support 1 through a bolt, welding a support beam 20 on the dragging support 2, and fixing a counter-force beam 22 through the bolt.

S200, hoisting the steel box girder, and installing a mounting support 13 at one end of the steel box girder close to the dragging support 2;

and hoisting the steel box girder through a truck crane, welding on the pushing support 1, and installing the installation support 13 on the surface of the steel box girder through a bolt on the end wall of the steel box girder.

S300, anchoring the reaction force rope 21 on the mounting support 13, and then installing the reaction force rope 21 on the reaction beam 22 in a penetrating manner;

the reaction force cable 21 is passed through the fixing beam 23, and then the anchor block 232 is inserted into the anchor hole 231, and the pulling actuator 224 is driven after tightening the reaction force cable 21, so that the fixing beam 23 is pressed tightly, thereby tightening the reaction force cable 21.

S400, controlling the pushing driving part 12 to jack the steel box girder, simultaneously starting the pushing driving part 1112 and the pulling driving part 224, and continuously repeating the steps until the box girder is moved to a preset position;

the method specifically comprises the following steps: s410, starting the pushing driving piece 12 to jack the steel box girder;

the pushing driving parts 1112 fixed on the plurality of pushing supports 1 work simultaneously to jack the steel box girder under the combined action.

S420, the offset detection device 3 detects the movement amount of the steel box girder in the vertical direction, and the control device 4 controls the mounting plate 222 to move by the corresponding movement amount, so that the laser emitted by the laser emitting device 31 is positioned at the center line of the receiving plate 121 in the height direction;

at this time, the laser emitted from the laser emitting device 31 forms a moving path on the receiving plate 121, the laser detecting device 32 detects the path of the laser on the receiving plate 121, and the distance calculating device 33 calculates the distance of the steel box girder moving the moving path in the vertical direction and transmits the distance of the moving path to the control device 4. The control device 4 controls the distance of the translational movement path of the adjustment electric cylinder 221 so that the laser light emitted by the laser emitting device 31 is located at the laser detecting device 32 at the center position.

S430, starting the pushing driving part 1112 and the dragging driving part 224, and detecting the offset of the steel box girder in the horizontal direction through the laser detection device 32 in the advancing process of the steel box girder;

and simultaneously starting the pushing driving piece 1112 and the dragging driving piece 224 to drag the steel box girder towards the dragging bracket 2, and detecting the position change of the laser emitting device 31 in the horizontal plane by the laser detecting device 32 in the process so as to obtain the offset of the mounting support 13.

S440, the control device 4 controls the deviation rectifying driving member 1122 to rectify the deviation of the steel box girder;

the control device 4 drives all the deviation correcting driving members 1122 to move the offset of the mounting support 13, so as to correct the horizontal position of the steel box girder.

And S450, continuously repeating the steps until the steel box girder is moved to a preset position.

S500, removing the mounting support 13, the sliding rail 11 and the counterforce beam 22, removing the pushing support 1 and the dragging support 2, and completing erection.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (6)

1. The utility model provides a quick handing equipment of steel box girder, includes a plurality of top pushes away support (1) and dilatory support (2), its characterized in that: a pushing driving part (12) is installed on the pushing support (1), a sliding rail (11) is arranged at the bottom of the pushing driving part (12), and a pushing driving part (1112) for driving the pushing driving part (12) to move along the sliding rail (11) is arranged at one end of the sliding rail (11); the traction support (2) is provided with a reaction beam (22), the reaction beam (22) is provided with a reaction rope (21) penetrating through the reaction beam (22), a traction driving piece (224) and a fixed beam (23), the traction driving piece (224) is positioned on one side, far away from the pushing driving piece (12), of the reaction beam (22), the reaction rope (21) is installed in the fixed beam (23), the traction driving piece (224) is used for pressing the fixed beam (23) to tighten the reaction rope (21), and one end, far away from the traction driving piece (224), of the reaction rope (21) is provided with an installation support (13) used for being installed on a steel box girder;

an offset detection device (3) is arranged at one end, facing the reaction beam (22), of the mounting support (13), the offset detection device (3) is used for detecting the offset of the mounting support (13) in the moving process of the steel box girder, an offset display device (223) is arranged on the surface, facing away from the mounting support (13), of the reaction beam (22), the offset display device (223) is electrically connected with the control device (4), and the offset detection device (3) is electrically connected with the control device (4) to transmit the offset of the steel box girder in the moving process to the control device (4);

the deviation detection device (3) comprises a laser emitting device (31) arranged on the mounting support (13), a laser detection device (32) arranged on the reaction beam (22) and a distance calculation device (33) arranged on the reaction beam (22), wherein the distance calculation device (33) is electrically connected with the control device (4);

a sliding block (112) is mounted at the bottom of the pushing driving piece (12), a driving block (1121) is arranged at the bottom of the sliding block (112), a sliding chute (111) for the sliding block (112) and the driving block (1121) to slide is arranged on the sliding rail (11), a deviation-rectifying driving piece (1122) for driving the pushing driving piece (12) to move along the direction perpendicular to the sliding rail (11) is arranged at one side of the sliding block (112), and the deviation-rectifying driving piece (1122) is electrically connected to the control device (4);

the laser detection device is characterized in that a mounting plate (222) used for mounting the laser detection device (32) is arranged on the reaction beam (22), an adjusting electric cylinder (221) is arranged on one side, close to the mounting plate (222), of the reaction beam (22), the adjusting electric cylinder (221) is electrically connected to the control device (4) to receive data obtained by detection of the laser detection device (32) and control the mounting plate (222) to move the mounting support (13) to the same height, and the laser detection device (32) is tightly arranged on the surface of the mounting plate (222) along the central axes of the height and length directions of the mounting plate (222) to form a cross shape.

2. The quick erection device of steel box girder of claim 1, characterized in that: reaction rope (21) are provided with two along erection support (13) width direction's axis symmetry, and each reaction rope (21) all is provided with one and drags driving piece (224).

3. The quick erection device of steel box girder of claim 2, characterized in that: the two ends of the fixed beam (23) are provided with a plurality of anchoring holes (231), a plurality of anchoring blocks (232) are arranged in the anchoring holes (231), the anchoring blocks (232) are located on the outer side wall of the counterforce cable (21), and one end of each anchoring block (232) is provided with a guide inclined plane (2321) inserted into each anchoring hole (231).

4. The quick erection device of steel box girder of claim 3, characterized in that: the top of the pushing driving piece (12) is provided with a bearing plate (121), the surface of the bearing plate (121) departing from the pushing driving piece (12) is provided with a protective rubber pad (122), and the surface of the protective rubber pad (122) is provided with an anti-skid groove (1221).

5. A construction method applied to the steel box girder rapid erection device of claim 4 is characterized by comprising the following steps:

a pushing support (1) and a dragging support (2) are built, a slide rail (11) is installed on the pushing support (1), and a counterforce beam (22) is installed on the dragging support (2);

hoisting the steel box girder, and installing a mounting support (13) at one end of the steel box girder close to the dragging support (2);

anchoring the reaction force rope (21) on the mounting support (13), and then installing the reaction force rope (21) on the reaction force beam (22) in a penetrating manner;

controlling the pushing driving part (12) to jack the steel box girder, then simultaneously starting the pushing driving part (1112) and the dragging driving part (224), and continuously repeating the steps until the box girder is moved to a preset position; and

and (3) dismantling the mounting support (13), the slide rail (11) and the reaction beam (22), dismantling the pushing support (1) and the dragging support (2) and completing erection.

6. The construction method of the steel box girder rapid erection device according to claim 5, wherein: controlling the push drive (12) to jack up the steel box girder and then simultaneously activating the push drive (1112) and the pull drive (224) to move the box girder to a predetermined position comprises:

starting the pushing driving piece (12) to jack the steel box girder;

the offset detection device (3) detects the movement amount of the steel box girder in the vertical direction, and the control device (4) controls the mounting plate (222) to move by the corresponding movement amount, so that the laser emitted by the laser emitting device (31) is positioned at the center line of the bearing plate (121) in the height direction;

starting a pushing driving piece (1112) and a dragging driving piece (224), and detecting the offset of the steel box girder in the horizontal direction through a laser detection device (32) in the advancing process of the steel box girder;

the control device (4) controls the deviation rectifying driving piece (1122) to rectify the deviation of the steel box girder; and the number of the first and second groups,

and continuously repeating the steps until the steel box girder is moved to a preset position.

Images