Fabricated rapid construction platform for bridge and control method therefor

Abstract

A fabricated rapid construction platform for a bridge, wherein the construction platform comprises a fixing frame, an upper-layer tubular pile position control structure (6), a lower-layer tubular pile position control structure (7), and a console; the fixing frame comprises a bottom rail platform (1), supporting posts (3), a top operation platform (2), and several supporting legs (4); the upper-layer tubular pile position control structure (6) and the lower-layer tubular pile position control structure (7) are provided between the bottom rail platform (1) and the top operation platform (2); the upper-layer tubular pile position control structure (6) comprises two sub-structures arranged symmetrically about the central axis of a second through hole, and each sub-structure comprises a braking device (61), a vertical control arm (63), and a horizontal control arm (62). The lower-layer tubular pile position control structure (7) comprises an annular frame (71), a revolution driving device, and four lower control arms (73). On the basis of the construction platform, a corresponding control method is also provided for safe construction, thereby solving the problems that the traditional hoisting manners have excessively large local stress, use a large number of apparatuses for hoisting, consume long time for hoisting, and have difficulty in controlling accurate connection of joints in the pile connection process.

1 . A fabricated rapid construction platform for a bridge, comprising a fixing frame, an upper-layer tubular pile position control structure, a lower-layer tubular pile position control structure, and a console;
 wherein   the fixing frame comprises a bottom rail platform, supporting posts, a top operation platform, and a plurality of supporting legs;   the supporting posts are vertically installed at four corners of the top surface of the bottom rail platform, and the middle part of the bottom rail platform is provided with a first through hole, and the aperture of the first through hole is greater than the diameter of a prefabricated tubular pile;   the top surface of the bottom rail platform is provided with an annular rail, the annular rail surrounds the periphery of the first through hole, and the center of the annular rail is located on the central axis of the first through hole; the top operation platform is installed at the tops of the supporting posts, the middle part of the top operation platform is provided with a second through hole, the central axis of the second through hole coincides with the central axis of the first through hole, and the aperture of the second through hole is greater than the diameter of the prefabricated tubular pile;   the plurality of supporting legs are arranged on four corners of the bottom rail platform and are installed on the supporting posts or the bottom rail platform, and the bottoms of all supporting legs are located on the same plane; the plane is parallel to the bottom rail platform and is located directly below the bottom rail platform;   the upper-layer tubular pile position control structure and the lower-layer tubular pile position control structure are provided between the bottom rail platform and the top operation platform;   the upper-layer tubular pile position control structure is located right above the lower-layer tubular pile position control structure, and comprises two sub-structures arranged symmetrically about the central axis of the second through hole, and each sub-structure comprises a braking device, a vertical control arm, and a horizontal control arm;   the braking device comprises a housing, and a vertical jacking cylinder and a horizontal jacking cylinder which are arranged in the housing;   a pushing direction of the vertical jacking cylinder is parallel to the central axis of the second through hole, and a pushing direction of the horizontal jacking cylinder is perpendicular to the central axis of the second through hole;   the housing is located outside the second through hole, and the side face of the housing facing the central axis of the second through hole is provided with a vertical chute and a horizontal chute; the vertical chute is provided parallel to the central axis of the second through hole, and the vertical control arm is slidingly arranged on the vertical chute;   one end of the vertical control arm is connected to the vertical jacking cylinder, and the vertical control arm vertically slides in a length direction of the vertical chute under the action of the vertical jacking cylinder;   the horizontal chute is provided parallel to the central axis of the second through hole, and the horizontal control arm is slidingly arranged on the horizontal chute;   one end of the horizontal control arm is connected to the horizontal jacking cylinder, and the horizontal control arm horizontally slides in a length direction of the horizontal chute under the action of the horizontal jacking cylinder;   the horizontal control arm and the vertical control arm are both telescopic hydraulic rods, telescoping directions of which are parallel to each other and are both perpendicular to the horizontal chute and the vertical chute;   the telescopic ends of the horizontal control arm and the vertical control arm are both provided with clamping plates, and the clamping plates are provided facing the central axis of the second through hole; and   the lower-layer tubular pile position control structure comprises an annular frame, a revolution driving device, and four lower control arms; rollers are arranged at the bottom of the annular frame, and the annular frame is slidingly connected to the bottom rail platform in a manner that the rollers are slidingly installed on the annular rail;   the outer side of the annular frame is provided with an arc-like toothed structure, and the outer frame is meshed with a driving gear of the revolution driving device through the toothed structure;   the annular frame is driven by the revolution driving device to rotate around the central axis of the first through hole;   the revolution driving device comprises the driving gear, a driving shaft and a driving motor; the driving gear is horizontally arranged and is installed on one end of the driving shaft, and the other end of the driving shaft is connected to an output shaft of the driving motor;   the driving motor is installed on the fixing frame;   the four lower control arms are uniformly distributed on the inner side of the annular frame; the lower control arm is a telescopic hydraulic rod, a telescopic direction of which is a radial direction of the first through hole, and the telescopic end of the lower control arm is also provided with a clamping plate; and   the lower control arm, the driving motor, the horizontal control arm, the vertical control arm and the braking device are all connected to a controller of the console.   
     
     
         2 . The fabricated rapid construction platform for a bridge according to  claim 1 , wherein the bottom rail platform and the top operation platform are both made of rectangular steel plates. 
     
     
         3 . The fabricated rapid construction platform for a bridge according to  claim 1 , wherein the supporting leg is installed at the lower part of the supporting post. 
     
     
         4 . The fabricated rapid construction platform for a bridge according to  claim 1 , wherein the supporting leg is a telescopic hydraulic rod. 
     
     
         5 . The fabricated rapid construction platform for a bridge according to  claim 1 , wherein
 the annular rail comprises an inner annular plate and an outer annular plate which are coaxial;   the inner annular plate is located at an inner side of the outer annular plate, and the inner annular plate and the outer annular plate are arranged at intervals;   the annular frame is movably arranged on the inner annular plate and the outer annular plate;   the inner annular plate is provided with an inner opening for the lower control arm to extend to the inner side of the inner annular plate and for the lower control arm to rotate along with the annular frame; and   the outer annular plate is provided with an outer opening for the driving gear to mesh with the toothed structure on the annular frame.   
     
     
         6 . The fabricated rapid construction platform for a bridge according to  claim 1 , wherein the housing is of an inverted T-shaped structure, a vertical edge of the T-shaped housing is provided with the vertical chute and the vertical jacking cylinder, and a transverse edge of the T-shaped housing is provided with the horizontal chute and the horizontal jacking cylinder. 
     
     
         7 . The fabricated rapid construction platform for a bridge according to  claim 6 , wherein both ends of the transverse edge of the T-shaped housing are respectively fixed to the supporting posts on both sides thereof, and the top of the transverse edge of the T-shaped housing is connected to the top operation platform through a steel pipe truss. 
     
     
         8 . The fabricated rapid construction platform for a bridge according to  claim 1 , wherein the end face of one end, back to the housing, of the clamping plate is a cambered surface, and the central line of the cambered surface is located on one side of the central axis of the second through hole. 
     
     
         9 . A control method for the fabricated rapid construction platform for a bridge, comprising the following steps:
 (1) hoisting, by a crane, a tubular pile, after the bottom of the tubular pile passes through a second through hole of a top operation platform and reaches the position below an upper-layer tubular pile position control structure, starting the upper-layer tubular pile position control structure, enabling vertical control arms and horizontal control arms to clamp the tubular pile, and then removing the crane;   (2) adjusting, by the upper-layer tubular pile position control structure, the horizontal position of the tubular pile, enabling a butt joint structure at the bottom of the tubular pile to face a butt joint structure of a pile body below, then loosening the horizontal control arms, operating the vertical control arms to convey the tubular pile downwards until the bottom of the tubular pile passes through a first through hole of the bottom rail platform;   (3) starting a lower-layer tubular pile position control structure, operating lower control arms to clamp the tubular pile, and then operating the upper-layer tubular pile position control structure to loosen the tubular pile; starting a driving motor of a revolution driving device, rotating the tubular pile until a butt joint part of the butt joint structure at the bottom of the tubular pile faces a butt joint part of a butt joint structure of the pile body below;   (4) manipulating the vertical control arms of the upper-layer tubular pile position control structure to rise to the highest point, and after the tubular pile is clamped by the vertical control arms, enabling the lower control arms of the lower-layer tubular pile position control structure to loosen the tubular pile, and conveying, by the vertical control arms, the tubular pile downwards again; and after the tubular pile reaches the lowest point where the vertical control arm descends or the position where the butt joint structure at the bottom of the tubular pile is in contact with the butt joint structure of the pile body below, clamping the tubular pile again by the lower control arms of the low-layer tubular pile position control structure;   (5) repeating step (4) until the butt joint structure at the bottom of the tubular pile is in contact with the butt joint of the pile body below; and   (6) repeating step (1) to step (5) until all tubular piles are installed.   
     
     
         10 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein in step (2),
 the adjustment of the horizontal position of the tubular pile comprises the adjustment of a first horizontal direction perpendicular to a horizontal chute and the adjustment of a second horizontal direction parallel to the horizontal chute;   the adjustment of the first horizontal direction is conducted through the expansion and contraction of the vertical control arm and the horizontal control arm; the adjustment of the second horizontal direction is conducted by driving the horizontal sliding of the horizontal control arm by a horizontal jacking cylinder of a braking device of the upper-layer tubular pile position control structure; and   the vertical control arms are required to be loosened before the horizontal jacking cylinder operates.   
     
     
         11 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein the bottom rail platform and the top operation platform are both made of rectangular steel plates. 
     
     
         12 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein the supporting leg is installed at the lower part of the supporting post. 
     
     
         13 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein the supporting leg is a telescopic hydraulic rod. 
     
     
         14 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein
 the annular rail comprises an inner annular plate and an outer annular plate which are coaxial;   the inner annular plate is located at the inner side of the outer annular plate, and the inner annular plate and the outer annular plate are arranged at intervals; the annular frame is movably arranged on the inner annular plate and the outer annular plate;   the inner annular plate is provided with an inner opening for the lower control arm to extend to the inner side of the inner annular plate and for the lower control arm to rotate along with the annular frame; and   the outer annular plate is provided with an outer opening for the driving gear to mesh with the toothed structure on the annular frame.   
     
     
         15 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein the housing is of an inverted T-shaped structure, a vertical edge of the T-shaped housing is provided with the vertical chute and the vertical jacking cylinder, and a transverse edge of the T-shaped housing is provided with the horizontal chute and the horizontal jacking cylinder. 
     
     
         16 . The control method for the fabricated rapid construction platform for a bridge according to  claim 14 , wherein both ends of the transverse edge of the T-shaped housing are respectively fixed to the supporting posts on both sides thereof, and the top of the transverse edge of the T-shaped housing is connected to the top operation platform through a steel pipe truss. 
     
     
         17 . The control method for the fabricated rapid construction platform for a bridge according to  claim 9 , wherein the end face of one end, back to the housing, of the clamping plate is a cambered surface, and the central line of the cambered surface is located on one side of the central axis of the second through hole. 
     
     
         18 . The control method for the fabricated rapid construction platform for a bridge according to  claim 11 , wherein in step (2), the adjustment of the horizontal position of the tubular pile comprises the adjustment of a first horizontal direction perpendicular to a horizontal chute and the adjustment of a second horizontal direction parallel to the horizontal chute; the adjustment of the first horizontal direction is conducted through the expansion and contraction of the vertical control arm and the horizontal control arm; the adjustment of the second horizontal direction is conducted by driving the horizontal sliding of the horizontal control arm by a horizontal jacking cylinder of a braking device of the upper-layer tubular pile position control structure; and the vertical control arms are required to be loosened before the horizontal jacking cylinder operates. 
     
     
         19 . The control method for the fabricated rapid construction platform for a bridge according to  claim 12 , wherein in step (2), the adjustment of the horizontal position of the tubular pile comprises the adjustment of a first horizontal direction perpendicular to a horizontal chute and the adjustment of a second horizontal direction parallel to the horizontal chute; the adjustment of the first horizontal direction is conducted through the expansion and contraction of the vertical control arm and the horizontal control arm; the adjustment of the second horizontal direction is conducted by driving the horizontal sliding of the horizontal control arm by a horizontal jacking cylinder of a braking device of the upper-layer tubular pile position control structure; and the vertical control arms are required to be loosened before the horizontal jacking cylinder operates. 
     
     
         20 . The control method for the fabricated rapid construction platform for a bridge according to  claim 13 , wherein in step (2), the adjustment of the horizontal position of the tubular pile comprises the adjustment of a first horizontal direction perpendicular to a horizontal chute and the adjustment of a second horizontal direction parallel to the horizontal chute; the adjustment of the first horizontal direction is conducted through the expansion and contraction of the vertical control arm and the horizontal control arm; the adjustment of the second horizontal direction is conducted by driving the horizontal sliding of the horizontal control arm by a horizontal jacking cylinder of a braking device of the upper-layer tubular pile position control structure; and the vertical control arms are required to be loosened before the horizontal jacking cylinder operates.