CN114054651B - Modularized device of plane precast pier reinforcement cage and rectangular reinforcement cage manufacturing method - Google Patents

Abstract

The invention discloses a modular device for a planar prefabricated bridge pier reinforcement cage and a manufacturing method for a rectangular reinforcement cage, specifically relates to the technical field of reinforcement cage construction, and aims to solve the problems of high labor intensity, slow work efficiency and construction accuracy in the current bridge pier reinforcement cage construction Low-level problems, the present invention includes a base, threaded columns, detachable steel hooks, adjustable positioning rings, circular hoops, bolts, nuts, positioning support rods, fixed chain rods, top support rods, steel wire ropes, wire rope buckles, ground anchor. The invention can realize the planar operation of the steel cage, greatly reduces the working intensity of the workers, facilitates the construction of the workers, saves time and improves the work efficiency; the device is modular production, assembled and disassembled on site, and the accessories can be reused, which conforms to the concept of green environmental protection. Moreover, the precision of the reinforcement cage can be effectively improved, and the invention is suitable for popularization and application in a large scale.

Description

A modular device for planar prefabricated bridge pier reinforcement cages and fabrication of rectangular reinforcement cages method

technical field

The invention relates to the technical field of reinforcement cage construction, in particular to a modular device for a planar prefabricated bridge pier reinforcement cage and a method for manufacturing a rectangular reinforcement cage.

Background technique

Reinforcement cage is one of the basic tools in pile foundation engineering. It is composed of longitudinal bars and stirrups connected in a series of rules. The reinforcement cage is similar to the longitudinal reinforcement of the column. It mainly plays the role of tensile resistance, and the compression resistance of concrete The strength is high but the tensile strength is low, and the reinforcement cage plays a certain role in restraining the concrete of the pile body, so that it can bear a certain axial tension.

In the construction of steel cages for bridge piers, it is necessary to set up scaffolding on site for binding, and many workers work at high places at the same time. The construction is inconvenient, the work efficiency is slow and the binding accuracy is low; while the existing prefabricated bridge pier steel cage devices, especially the prefabricated rectangular steel cage devices , when making a long steel cage, it is inconvenient to locate multiple steel bars, the prefabrication efficiency is low, laborious and laborious, and the precision is low; in addition, the existing prefabricated steel cage devices have poor variability and cannot be well adapted to various steel cages of different specifications prefab. Therefore, we propose a modular device for planar prefabricated bridge pier reinforcement cages and a manufacturing method for rectangular reinforcement cages that can solve the problems of high labor intensity, slow work efficiency, and low construction accuracy in the current construction of bridge pier reinforcement cages.

Contents of the invention

The object of the present invention is to provide a modularized device for a planar prefabricated bridge pier reinforcement cage and a manufacturing method for a rectangular reinforcement cage, so as to solve the problems of high labor intensity, slow work efficiency, and low construction accuracy in the current bridge pier reinforcement cage construction.

To achieve the above object, the present invention provides the following technical solutions:

A modular device for a planar prefabricated bridge pier reinforcement cage, comprising a base set on the ground and a ground anchor inserted into the ground;

There are several bases arranged in two rows, and between two adjacent bases in each row of bases and between bases at the ends of two rows of bases are connected by fixed chain rods;

A threaded column is welded at the center of the upper surface of the base, and a top support rod is detachably connected to the top of the two opposite threaded columns in the two rows of bases. A threaded hole is left on the side of the threaded column, and the threaded hole A detachable steel hook is threaded, the number of the ground anchors corresponds to the base, and it is arranged on the outside of the base, and a wire rope is connected between the detachable steel hooks and the ground anchors;

The threaded column is threaded with several adjustable positioning rings arranged vertically, and the outer peripheral surface of the adjustable positioning ring is detachably connected with a circular hoop, and the circular hoop is composed of two semicircular hoops Composed, and the two semicircular hoops are connected by bolts and nuts, one of the semicircular hoops is provided with a threaded opening, the threaded opening is threaded with a positioning support rod, and the positioning support rod is set on On the side where two opposite threaded uprights in the two rows of bases are close to each other.

As a further solution of the present invention: two adjacent bases in each row of bases are connected by a longitudinal fixed link, and bases at the ends of two rows of bases are connected by a transverse fixed link.

As a further solution of the present invention: the base is a square steel plate, four threaded rods are welded near the corners of the base, and the horizontal fixed chain rods and vertical fixed chain rods are connected to the threaded rods through nuts.

As a further solution of the present invention: the thickness of the two ends of the horizontal fixed chain rod and the vertical fixed chain rod is smaller than the thickness of the middle section, and the positions of the two ends of the horizontal fixed chain rod and the vertical fixed chain rod are provided with a right angle Groove, the right-angle groove cooperates with the edge of the base.

As a further solution of the present invention: the threaded column is a solid steel column, an open slot 1 is left on the top of the threaded column, the two ends of the top support rod are arranged in the open slot 1, and the top support rod The two ends are provided with opening slots two adapted thereto.

As a further solution of the present invention: both ends of the steel wire rope are provided with a rope sleeve, the opening of the rope sleeve is connected with a wire rope buckle, and a hook-shaped body is fixed at the end of the ground anchor protruding from the ground, and the wire rope The end away from the detachable steel hook is connected to the hook body.

As a further solution of the present invention: when the steel wire rope is in a tensioned state, the angle between the steel wire rope and the ground is 45 degrees.

As a further solution of the present invention: the upper and lower ends of the adjustable positioning ring are provided with outer edges extending radially outward along the end surface, the circular hoop is arranged between the outer edges, and the adjustable positioning ring The ring is a circular structure with a thin middle and thick ends.

As a further solution of the present invention: the positioning support rod is specifically a half-threaded rod, and the threaded section provided at one end of the positioning support rod is threadedly connected with a circular hoop.

A method for manufacturing a rectangular steel cage, utilizing the above-described modular device for a prefabricated bridge pier steel cage to make, said method of making comprises the following steps:

Site selection: choose a suitable site according to the actual processing needs. If the foundation of the construction site is relatively weak, it is necessary to carry out site hardening and leveling treatment in advance to prevent surface subsidence and affect the accuracy of the device. If the foundation of the construction site meets the construction requirements, it can be omitted. this step;

Device assembly: Calculate the length and width of the modular device according to the size of the prefabricated rectangular steel cage, select a fixed chain rod and a top support rod with an appropriate length, and use a total station to monitor the Stake out and locate the base position, place the base according to the measured position, set it in a matrix form of two columns and n rows, and make the centers of the bases in each row or column be on the same straight line, the number of bases is 2n, and the top supports The number of rods is n, and fixed chain rods are installed between the bases. The number of fixed chain rods is 4n-2; according to the number of main ribs along the height direction, an equal number of adjustable positioning rings are set on each threaded column , and set the position of the adjustable positioning ring according to the calculation. For example, there are m main reinforcements along the height direction, except for the topmost main reinforcement on the top support rod, the rest are placed on the positioning support rod. Each threaded column requires Assuming m-1 adjustable positioning rings, a total of 2n(m-1) adjustable positioning rings are required, and a circular hoop is set on each adjustable positioning ring, and the semicircular hoop with threaded interface is reserved. The hoop faces inward, and the positioning support rods are installed. The number of positioning support rods is equal to the number of adjustable positioning rings, and a total of 2n(m-1) pieces are required. Then install the detachable steel hook and the top support rod, and finally connect one end of the wire rope Connect the detachable steel hook, and connect the other end to the ground anchor. After the wire rope is pulled tight, drive into the ground anchor;

Erection of reinforcement cages: place the main reinforcement at the top of the rectangular reinforcement cage on the top support bar according to the actual spacing, set the surrounding rectangular stirrups and vertical stirrups, and place the surrounding rectangular stirrups and vertical stirrups at a fixed distance along the longitudinal direction OK, and weld with the top main ribs, place any side of the main ribs on both sides on the positioning support rod on the corresponding side, and make all the main ribs on this side align with the outermost main ribs on the top along the height direction, and then Set up the horizontal stirrups, and weld the horizontal stirrups to the main ribs on the side, then place the main ribs on the other side on the positioning support rods on the corresponding side, and place the main ribs on the bottom around the rectangular stirrups Finally, weld the surrounding rectangular stirrups, vertical stirrups and transverse stirrups to the corresponding main bars;

Lifting the reinforcement cage: After erecting the rectangular reinforcement cage, first lift the rectangular reinforcement cage upward on one side so that the rectangular reinforcement cage does not press on the modular device, and let all the positioning support rods on one side be separated from the reinforcement cage Inside, remove the positioning support rods on all the adjustable positioning rings on the corresponding side, and then move the rectangular reinforcement cage to the other side as a whole, so that all the positioning support rods on the corresponding side are separated from the rectangular steel bars Inside the cage, finally lift the rectangular reinforcement cage upwards as a whole, the rectangular reinforcement cage will be separated from the device with the top support bar, and then take out the top support bar, the lifting of the rectangular reinforcement cage is complete;

Site restoration: The prefabricated rectangular reinforcement cages were removed and the rectangular reinforcement cages were transported to a specific location.

Beneficial effect:

1. The present invention provides a modular device for planar prefabricated pier reinforcement cages. The modular device is assembled from various modular accessories. The accessories are mass-customized and produced by the factory, which ensures the low cost and high accuracy of the accessories. The chemical parts are light and small in size, easy to transport to the construction site, and easy to assemble and disassemble on site. The parts can be reused, which is in line with the concept of green environmental protection.

2. The present invention provides a modular device for planar prefabricated bridge pier reinforcement cages. Fixed chain rods of different lengths can be replaced and installed according to actual needs, and horizontal fixed chain rods and vertical fixed chain rods of different lengths can be installed. Adjust the number and height of the positioning rings to adapt to the production of rectangular reinforcement cages of different scales and sizes, and at the same time ensure the accuracy of reinforcement cages of different sizes.

3. The present invention provides a method for manufacturing a rectangular steel cage. The method for making a rectangular steel cage changes the work at a high place on the scaffold built by the workers to a plane operation, which greatly reduces the work intensity of the workers, and the plane operation is convenient for the workers to construct, saving time, improve work efficiency, and improve the accuracy of the steel cage.

4. The present invention provides a method for making a rectangular reinforcement cage. After the rectangular reinforcement cage is manufactured, the rectangular reinforcement cage is first hoisted toward the top of one side, and then the positioning support rod on one side is removed, and then the rectangular reinforcement cage is lifted toward the other side. Move one side, then remove the positioning support rod on the other side, and finally lift the rectangular steel cage as a whole, because the top support rod can be disassembled on the threaded column, so that after the rectangular steel cage is hoisted, the top support rod can be driven Lifting and detaching from the threaded column, the lifting process of the above-mentioned rectangular steel cage is simple and convenient, and there is no need to disassemble the modular device as a whole, which greatly improves the processing efficiency of the rectangular steel cage and is also convenient for the next rectangular steel bar The manufacture of the cage saves the steps of dismantling and reinstalling the modular device.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the structural representation of threaded column among the present invention;

Fig. 3 is the structural representation of the base in the present invention;

Fig. 4 is the side view structure schematic diagram of the present invention;

Fig. 5 is a structural schematic diagram of the fixed chain rod and the base of the present invention;

Fig. 6 is the structural representation that rectangular reinforcement cage of the present invention makes;

Fig. 7 is the side view structure schematic diagram that rectangular reinforcement cage of the present invention is made;

Fig. 8 is the structural schematic diagram of hanging construction of the rectangular reinforcement cage of the present invention;

In the figure: 1. Base; 2. Threaded rod; 3. Threaded column; 4. Detachable steel hook; 5. Adjustable positioning ring; 6. Circular hoop; 7. Bolt; 8. Nut; 9. Positioning support Rod; 10, horizontal fixed chain rod; 11, vertical fixed chain rod; 12, top support rod; 13, wire rope; 14, wire rope buckle; 15, ground anchor; 16, main reinforcement; Vertical stirrups; 19. Horizontal stirrups.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The present invention provides following technical scheme:

As shown in Figure 1-8, a modular device for a planar prefabricated pier reinforcement cage includes a base 1 set on the ground and a ground anchor 15 inserted into the ground, the base 1 is placed on the ground, and the ground anchor 15 is placed on the base 1, and the position of the ground anchor 15 and the depth of insertion into the ground are determined according to the height and weight of the device body and the length of the wire rope 13;

There are several bases 1 arranged in two rows, between two adjacent bases 1 in each row of bases 1 and between the bases 1 at the ends of the two rows of bases 1 are connected by fixed chain rods. The various bases 1 can be connected together, and at the same time, in the actual use of the present invention, fixed chain rods of different lengths can be replaced according to specific processing requirements, so as to be suitable for the production of rectangular steel cages of different specifications, and at the same time, it can ensure different sizes of steel cages. The accuracy of the rectangular reinforcement cage;

A threaded column 3 is welded at the center of the upper surface of the base 1, and a top support rod 12 is detachably connected to the top of the two opposite threaded columns 3 in the two rows of bases 1, specifically the top support rod 12 is placed on two oppositely arranged The top of the threaded column 3 can be easily taken off the top support rod 12, so that after the rectangular steel cage is made, the rectangular steel cage can be easily taken out, and a threaded hole is left on the side of the threaded column 3, and the threaded There is a detachable steel hook 4 connected to the inner thread of the hole. In the actual installation of the present invention, it is necessary to ensure that the threaded hole on the threaded column 3 is as close as possible to the top of the threaded column 3, so as to avoid that the position of the detachable steel hook 4 will affect the adjustable positioning ring. 5, the position of the detachable steel hook 4 will affect the distance between the two adjustable positioning rings 5 arranged on the top of the threaded column 3, so that when the rectangular reinforcement cage is made, the upper part of the upper side of the rectangular reinforcement cage The distance between the first and the second main reinforcement 16 is too large, thereby affecting the accuracy of the reinforcement cage. The number of ground anchors 15 corresponds to the base 1, and it is arranged on the outside of the base 1, between the detachable steel hook 4 and the ground anchor 15 Connected with a steel wire rope 13, the detachable steel hook 4 and the ground anchor 15 are connected by the steel wire rope 13, which can further stabilize the overall structure of the present invention. During production, depending on the pulling force of the steel wire rope 13, the device body and the rectangular steel cage can be prevented from overturning inwardly;

The threaded column 3 is threaded with several adjustable positioning rings 5 arranged vertically. The adjustable positioning ring 5 can move freely on the threaded column 3 to change the height of the adjustable positioning ring 5 and the height of two adjacent adjustable positioning rings 5. At the same time, the height of the adjustable positioning ring 5 should be appropriate. If the height is too small, the diameter of the positioning support rod 9 will be limited. If the diameter is too small, the positioning support rod 9 will easily bend too much under the influence of the gravity of the steel cage, thereby Affect the accuracy of the reinforcement cage, if the height is too high, it will affect the distance between two adjacent adjustable positioning rings 5, thereby affecting the distance between the main reinforcement 16 on the side of the reinforcement cage, and the outer peripheral surface of the adjustable positioning ring 5 is detachably connected with a circular hoop 6. The height of the circular hoop 6 is smaller than the height of the adjustable positioning ring 5. The circular hoop 6 is composed of two semicircular hoops, and the two semicircular hoops are connected by bolts 7 and nuts 8 , one of the semicircular hoops is provided with a threaded opening, and the threaded opening is threaded with a positioning support rod 9. In actual use, the positioning support rod 9 can be rotated to make it out of the semicircular hoop, and at the same time, the bolt 7 and nut 8 are removed, and the circular hoop 6 can be removed from the adjustable positioning ring 5, and the positioning support rod 9 is arranged on the side where the two opposite threaded columns 3 in the two rows of bases 1 are close to each other. 3 When welding to the base 1, the direction of the threaded opening should be perpendicular to one side of the base 1, and at the same time, it must be ensured that the direction of the threaded opening is set inward, that is, the threaded column 3 on the left column should have its threaded opening face Right, the threaded column 3 that is positioned at the right row should make its threaded opening towards the left, so that the positioning support rods 9 on the threaded column 3 on the base 1 that are arranged symmetrically in two rows are all towards the side that is close to each other, so that The placement of main reinforcement 16 is so that the manufacturing process of rectangular reinforcement cage.

In each row of bases 1, two adjacent bases 1 are connected by longitudinal fixed chain rods 11, and the bases 1 at the ends of two rows of bases 1 are connected by horizontal fixed chain rods 10. The present invention can be replaced and installed according to actual needs. Fixed chain rods of different lengths can be installed with different lengths of horizontal fixed chain rods 10 and vertical fixed chain rods 11. The number of fixed chain bars 10 is 2n, the number of fixed chain bars 10 is 2, and the number of fixed chain bars 11 is 4n-4. The fixed chain bars 10 and 11 are used to connect the base 1 as a whole , to ensure the structural stability of the present invention, and also improve the bearing capacity of the present invention.

The base 1 is a square steel plate. Four threaded rods 2 are welded near the corners of the base 1. The horizontal fixed chain rod 10 and the vertical fixed chain rod 11 are connected to the threaded rod 2 through the nut 8. The horizontal fixed chain rod 10 is connected to the vertical fixed chain rod. Both ends of the chain rod 11 are provided with holes, the diameter of which is slightly larger than the diameter of the threaded rod 2, and fixed by the nut 8, the overall stability of the device can be enhanced.

The thickness of the two ends of the horizontally fixed chain bar 10 and the vertically fixed chain bar 11 is smaller than the thickness of the middle section, and the positions of the two ends of the horizontally fixed chain bar 10 and the vertically fixed chain bar 11 are provided with downwardly facing right-angled grooves, and the right-angled grooves and The edges of the base 1 cooperate with each other, and cooperate with the base 1 through a right-angle groove to prevent relative movement between adjacent bases 1. Here, the length of the middle section of the fixed chain rod is regarded as its effective length. The fixed chain rod is divided into Horizontally fixed chain bar 10 and vertically fixed chain bar 11, determine the length of horizontally fixed chain bar 10 according to the width of prefabricated rectangular steel reinforcement cage, determine the length of vertically fixed chain bar 11 according to the length of prefabricated rectangular steel bar cage, the outside of main bar 16 on both sides The spacing needs to be slightly greater than the effective length of the fixed chain rod to ensure that the main ribs 16 on both sides can be placed on the positioning support rod 9 .

The threaded column 3 is a solid steel column. There is an open slot 1 at the top of the threaded column 3, and the two ends of the top support rod 12 are arranged in the open slot 1, and the two ends of the top support bar 12 are provided with matching open slots. Second, the opening groove 1 on the threaded column 3 and the opening groove 2 on the top support rod 12 cooperate with each other, so as to limit the displacement of the top support rod 12 on the horizontal plane, and also facilitate the removal of the top support rod 12 .

Both ends of the wire rope 13 are provided with nooses, the opening of the noose is connected with a wire rope buckle 14, and one end of the ground anchor 15 protruding from the ground is fixed with a hook, and the end of the wire rope 13 away from the detachable steel hook 4 is connected to the hook. On the shape body, the end of the wire rope 13 can be fixed by the wire rope buckle 14, and the setting of the hook shape body and the detachable steel hook 4 facilitates the fixing of the wire rope 13.

When the wire rope 13 is in a tensioned state, the angle between the wire rope 13 and the ground is 45 degrees. At the same time, the wire rope 13 connected to the threaded column 3 and the ground anchor 15 of the same row should be on the same plane, and the wire rope 13 is connected to the device body. The tension on both sides prevents the reinforcement cage from being too heavy and causing the device to tip over inwards.

The upper and lower ends of the adjustable positioning ring 5 are provided with outer edges extending radially outward along its end face, and the circular hoop 6 is arranged between the outer edges. The adjustable positioning ring 5 is a ring shape with a thin middle and thick ends structure, the circular hoop 6 can be limited by the outer edge.

The positioning support rod 9 is specifically a half-threaded rod, and the threaded section arranged at one end of the positioning support rod 9 is threadedly connected with the circular hoop 6. The part of the positioning support rod 9 protruding from the circular hoop 6 is a straight rod-shaped structure. So that be used for placing the main bar 16 that makes rectangular reinforcement cage usefulness.

In the factory prefabrication link of the present invention, the reference dimensions of each component are as follows:

The base 1 is made of a square steel plate of 50×50×3cm, and a threaded rod 2 with a diameter of 2cm is welded to the four corners of the square steel plate, and the distance between the threaded rod 2 and the adjacent two sides of the base is 10cm; The width and height of opening groove one are 3cm, the diameter of threaded hole is 1cm, the inner diameter of adjustable positioning ring 5 middle section is 5cm, the outer diameter is 6cm, and the height is 0.5cm; the outer edge inner diameter of both ends is 5cm, and the outer diameter is 8cm , high 0.5cm; the height of the circular hoop 6 is 2.8cm, and the diameter of the threaded opening is 2cm; the positioning support rod 9 is 2cm in diameter and 22cm long; the middle section height and width of the horizontal fixed chain rod 10 are 3cm, and the length is according The size of prefabricated reinforcement cage is determined, and the height of two ends is 1.5cm, and width is 3cm; The two ends of top support rod 12 also leave opening groove 2, groove deep 1cm; When top support rod 12 is arranged, its upper surface and screw thread The top surface of the column 3 is flush, its width and height are 4cm, and the effective length is the same as the length of the middle section of the horizontally fixed chain bar 10; Factory modular production and convenient construction, the length of the middle section of the horizontal fixed chain bar 10 can be made as a unit of 10cm, the length of the middle section of the vertical fixed chain bar 11 can be set to 300cm, the modular device in the present invention consists of various modules Assembled with chemical parts, the parts are mass-customized and produced by the factory, which ensures the low cost and high accuracy of the parts. The modular parts are light and small in size, easy to transport to the construction site, and easy to assemble and disassemble on site. The parts can be reused. In line with the concept of green environmental protection.

A method for manufacturing a rectangular reinforcement cage, utilizing the above modularized device for a prefabricated bridge pier reinforcement cage to manufacture, the manufacturing method comprises the following steps:

The present embodiment takes the prefabricated long 9m, wide 1.8m, the rectangular reinforcement cage of high 1.5m as embodiment to further explain and illustrate the present invention

Site selection: choose a suitable site according to the actual processing needs. If the foundation of the construction site is relatively weak, it is necessary to carry out site hardening and leveling treatment in advance to prevent surface subsidence and affect the accuracy of the device. If the foundation of the construction site meets the construction requirements, it can be omitted. this step;

Device assembly: Calculate the length and width of the modular device according to the size of the prefabricated rectangular steel cage, and select the horizontal fixed chain rod 10 with an effective length of 1.6m, the vertical fixed chain rod 11 with 3m and the top support rod 12 with an effective length of 1.6m , according to the survey control network that has been measured and set up on site, use the total station to stake out and position the position of the base 1, place the base 1 according to the measured position, set it into a matrix form of two columns and three rows, and make each row or The centers of bases 1 of the columns are on the same straight line, the distance between adjacent bases 1 of each row is 2.6m, the distance between adjacent bases 1 of each column is 3m, the number of bases 1 is 6, and the distance between the top support rods 12 The number is 3, and the adjacent bases 1 of the first and third rows are connected by two horizontal fixed chain rods 10, and the adjacent bases 1 of the second row do not need to be connected by horizontal fixed chain rods 10; the vertically adjacent bases 1 Two vertical fixed chain bars 11 are required to be connected, and a total of eight vertical fixed chain bars 11 are needed. There are 14 main bars 16 along the height direction of the reinforcement cage, the top main bar 16 is placed on the top support bar 12, and the rest are placed on the positioning support bar 9, and 13 adjustable positioning rings are required on each threaded column 3 5. A total of 78 adjustable positioning rings 5 are required. Taking the upper surface of the top support rod 12 as the reference plane, the first adjustable positioning ring 5 is set at a distance of 12.9 cm from the upper surface of the top support rod 12. The 2nd to 12th The distance between the adjustable positioning rings 5 is 10cm, and the distance between the 12th and 13th is 12.9cm. Circular hoops 6 are arranged on each adjustable positioning ring 5, and the semicircular hoops with threaded openings are reserved inwards, and positioning support rods 9 are installed. The number of positioning support rods 9 is related to the adjustable positioning The number of rings 5 is equal, and a total of 78 are required. The detachable steel hook 4 and the top support bar 12 are installed subsequently. Finally, one end of the steel wire rope 13 is connected to the detachable steel hook 4, and the other end is connected to the ground anchor 15, and after the steel wire rope 13 is tightened, drive into the ground anchor 15;

Erection of the reinforcement cage: place the main reinforcement 16 on the top of the rectangular reinforcement cage on the top support bar 12 according to the actual spacing, set the surrounding rectangular stirrup 17 and the vertical reinforcement 18, and place the surrounding rectangular reinforcement 17 and the vertical reinforcement 18 along the Longitudinally arranged at fixed intervals, and welded with the main ribs 16 on the top, place any side of the main ribs 16 on both sides on the positioning support rod 9 on the corresponding side, and make all the main ribs 16 on this side along the The height direction is aligned with the outermost main rib 16 on the top, and then the transverse stirrup 19 is set, and the transverse stirrup 19 is welded to the main rib 16 on the side, and then the main rib 16 on the other side is placed on the corresponding side. On the support rod 9, place the main rib 16 at the bottom on the surrounding rectangular stirrup 17, and finally, weld the surrounding rectangular stirrup 17, vertical stirrup 18 and horizontal stirrup 19 to the corresponding main rib 16;

Lifting the reinforcement cage: After erecting the rectangular reinforcement cage, lift the rectangular reinforcement cage upwards to one side first, so that the rectangular reinforcement cage does not press on the modular device, and let all the positioning support rods 9 on one side be separated from the reinforcement Inside the cage, remove the positioning support rods 9 on all the adjustable positioning rings 5 on the corresponding side, and then move the rectangular reinforcement cage to the other side as a whole, so that all the positioning support rods on the corresponding side 9 Break away from the inside of the rectangular reinforcement cage, and finally lift the rectangular reinforcement cage upwards as a whole, the rectangular reinforcement cage will be separated from the device with the top support rod 12, and then take out the top support rod 12, and the lifting of the rectangular reinforcement cage is completed;

Site restoration: The prefabricated rectangular reinforcement cages were removed and the rectangular reinforcement cages were transported to a specific location.

The manufacturing method of the rectangular steel cage changes the work at the height of the scaffold built by the workers on site to the plane work, which greatly reduces the work intensity of the workers, and the plane work is convenient for the workers to construct, saves time, improves work efficiency, and improves the accuracy of the steel cage. After the cage is finished, first lift the rectangular reinforcement cage upward on one side, then remove the positioning support rod on one side, then move the rectangular reinforcement cage to the other side, then remove the positioning support rod on the other side, and finally place the The rectangular steel cage is hoisted upwards as a whole. Since the top support rod can be disassembled on the threaded column, after the rectangular steel cage is hoisted, the top support rod can be lifted and separated from the threaded column. The lifting process of the above rectangular steel cage is simple. It is convenient and does not need to disassemble the modular device as a whole, which greatly improves the processing efficiency of the rectangular steel cage, and is also convenient for the next production of the rectangular steel cage, eliminating the steps of dismantling and reinstalling the modular device .

The preferred embodiments of the invention disclosed above are only to help illustrate the invention. The preferred embodiments do not exhaust all details nor limit the invention to only specific embodiments. Obviously, many modifications and variations can be made based on the contents of this specification. This description selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The invention is to be limited only by the claims, along with their full scope and equivalents.

Claims (9)

1. A method for manufacturing a rectangular reinforcement cage, the method utilizes a modular device for prefabricating a bridge pier reinforcement cage to manufacture, and is characterized in that it includes a base (1) arranged on the ground and a ground anchor (15 ); The bases (1) are arranged in two rows, between two adjacent bases (1) in each row of bases (1) and between the bases (1) at the ends of the two rows of bases (1) are connected by fixed chain rods; A threaded column (3) is welded at the center of the upper surface of the base (1), and a top support rod (12) is detachably connected to the top of the two opposite threaded columns (3) in the two rows of bases (1). A threaded hole is left on the side of the threaded column (3), and the threaded hole is connected with a detachable steel hook (4). The number of the ground anchors (15) corresponds to the base (1), and it is set on On the outside of the base (1), a wire rope (13) is connected between the detachable steel hook (4) and the ground anchor (15); The threaded column (3) is threaded with a number of vertically arranged adjustable positioning rings (5), and the outer peripheral surface of the adjustable positioning ring (5) is detachably connected with a circular hoop (6). The circular hoop (6) is composed of two semicircular hoops, and the two semicircular hoops are connected by bolts (7) and nuts (8), and one of the semicircular hoops is threaded Opening, the threaded opening is threaded with a positioning support rod (9), and the positioning support rod (9) is arranged on the side where the two opposite threaded columns (3) of the two rows of bases (1) are close to each other; The manufacturing method of the rectangular reinforcement cage comprises the following steps: Site selection: choose a suitable site according to the actual processing needs. If the foundation of the construction site is relatively weak, it is necessary to carry out site hardening and leveling treatment in advance to prevent surface subsidence and affect the accuracy of the device. If the foundation of the construction site meets the construction requirements, it can be omitted. this step; Device assembly: Calculate the length and width of the modular device according to the size of the prefabricated rectangular steel cage, select the fixed chain rod and the top support rod (12) with appropriate length, and use the whole The station instrument performs lofting and positioning on the position of the base (1), places the base (1) according to the measured position, and sets it into a matrix form of two columns and n rows, and makes the center of the base of each row or column on the same straight line, The number of bases (1) is 2n, the number of top support rods (12) is n, and fixed chain rods are installed between the bases (1), the number of fixed chain rods is 4n-2; according to the height direction The quantity of the main reinforcement (16), set an equal number of adjustable positioning rings (5) on each threaded column (3), and set the position of the adjustable positioning ring (5) according to the calculation, such as the main reinforcement along the height direction ( 16) is m roots, except the topmost main reinforcement (16) is placed on the top support rod (12), the rest are placed on the positioning support rod (9), and m-1 pieces are required on each threaded column (3) Adjustable positioning rings (5), a total of 2n (m-1) adjustable positioning rings (5) are required, and circular hoops (6) are set on each adjustable positioning ring (5), and there will be reserved The semicircular hoop of the threaded interface faces inward, and the positioning support rods (9) are installed. The number of positioning support rods (9) is equal to the number of adjustable positioning rings (5), and a total of 2n(m-1) pieces are required , then install the detachable steel hook (4) and the top support rod (12), and finally connect one end of the wire rope (13) to the detachable steel hook (4), and the other end to the ground anchor (15), and pull the wire rope (13) tight After that, drive into ground anchor (15); Erection of reinforcement cages: Place the main reinforcement (16) on the top of the rectangular reinforcement cage on the top support bar (12) according to the actual spacing, set the surrounding rectangular stirrups (17) and vertical stirrups (18), and place the surrounding rectangular stirrups (17) and vertical stirrups (18) are arranged at fixed intervals along the longitudinal direction, and welded with the main reinforcement (16) on the top, and any side of the main reinforcement (16) on both sides is placed on the corresponding side on the positioning support bar (9), and align all the main ribs (16) on this side with the outermost main rib (16) on the top along the height direction, then set the transverse stirrups (19), and align the transverse stirrups (19) with the The main reinforcement (16) on the side is welded and connected, then the main reinforcement (16) on the other side is placed on the positioning support rod (9) on the corresponding side, and the main reinforcement (16) at the bottom is placed on the rectangular hoop Ribs (17), finally, weld the surrounding rectangular stirrups (17), vertical stirrups (18) and transverse stirrups (19) to the corresponding main ribs (16); Lifting the reinforcement cage: After erecting the rectangular reinforcement cage, lift the rectangular reinforcement cage upwards to one side first, so that the rectangular reinforcement cage does not press on the modular device, and let all the positioning support rods (9) on one side Break away from the inside of the reinforcement cage, and remove the positioning support rods (9) on all the adjustable positioning rings (5) on the corresponding side, and then move the rectangular reinforcement cage to the other side as a whole to make the corresponding one All the positioning support rods (9) on the side are separated from the inside of the rectangular reinforcement cage, and finally the rectangular reinforcement cage is lifted up as a whole, and the rectangular reinforcement cage will be separated from the device with the top support rod (12), and then the top support rod (12) will be taken out , the lifting of the rectangular steel cage is completed; Site restoration: The prefabricated rectangular reinforcement cages were removed and the rectangular reinforcement cages were transported to a specific location. 2. The manufacturing method of a rectangular reinforcement cage according to claim 1, characterized in that: two adjacent bases (1) in each row of bases (1) are connected by longitudinal fixed chain rods (11), located at The bases (1) at the ends of the two rows of bases (1) are connected by transverse fixed chain rods (10). 3. The manufacturing method of a rectangular reinforcement cage according to claim 2, characterized in that: the base (1) is a square steel plate, and four threaded rods (2) are welded near the corners of the base (1) , the horizontal fixed chain rod (10) is connected with the vertical fixed chain rod (11) through the nut (8) and the threaded rod (2). 4. The manufacturing method of a rectangular reinforcement cage according to claim 2, characterized in that: the thickness of the two ends of the horizontal fixed chain bar (10) and the vertical fixed chain bar (11) is smaller than the thickness of the middle section, and the The two ends of the horizontal fixed chain rod (10) and the vertical fixed chain rod (11) are provided with downwardly facing right-angled grooves, and the right-angled grooves cooperate with the edges of the base (1). 5. The manufacturing method of a rectangular reinforcement cage according to claim 1, characterized in that: the threaded column (3) is a solid steel column, and an opening slot is left on the top of the threaded column (3), and the The two ends of the top support rod (12) are arranged in the first opening slot, and the two ends of the top support rod (12) are provided with the second opening slot adapted thereto. 6. The manufacturing method of a rectangular reinforcement cage according to claim 1, characterized in that: both ends of the steel wire rope (13) are provided with rope sleeves, and the opening of the rope sleeve is connected with a wire rope buckle (14) , and the end of the ground anchor (15) protruding from the ground is fixed with a hook-shaped body, and the end of the steel wire rope (13) away from the detachable steel hook (4) is connected to the hook-shaped body. 7. The manufacturing method of a rectangular reinforcement cage according to claim 1, characterized in that: when the steel wire rope (13) is in a tensioned state, the angle between the steel wire rope (13) and the ground is 45 degrees. 8. The manufacturing method of a rectangular reinforcement cage according to claim 1, characterized in that: the upper and lower ends of the adjustable positioning ring (5) are provided with outer edges extending radially outward along the end surface, The circular hoop (6) is arranged between the outer edges, and the adjustable positioning ring (5) is a ring structure with a thin middle and thick ends. 9. The manufacturing method of a rectangular reinforcement cage according to claim 1, characterized in that: the positioning support rod (9) is specifically a half-threaded rod, and the threaded section arranged at one end of the positioning support rod (9) is connected to the circular The hoop (6) is threaded.

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