Construction method of concrete pier beam reinforcement parts

Abstract

The application provides a concrete pier column beam steel bar part construction method, which comprises the following steps: S1, dividing a beam steel bar; S2, processing a steel bar unit; S3, manufacturing a beam steel bar part; and S4, hoisting the beam steel bar part. The middle section steel bar of the beam is prefabricated as a whole, the inner formwork is installed when the beam steel bar part is manufactured, the inner formwork and the beam steel bar part are hoisted as a whole, and then the connecting steel bars between the beam steel bar part and the pier body are installed in a staggered manner. Therefore, the construction time of the on-site steel bar and the formwork is saved, the construction efficiency of the pier column beam steel bar is improved, the construction efficiency of the pier column beam steel bar is ensured, and the risk of high-altitude operation is reduced.

Description

Technical Field

[0001] This invention relates to the field of concrete pier construction, and in particular to a method for constructing reinforcing steel components for the crossbeams of concrete piers. Background Technology

[0002] Concrete piers are a crucial structural component of bridges. High piers typically have crossbeams. Currently, the most common method for reinforcing steel in pier crossbeams is to fabricate individual components at a steel processing plant, transport them to the construction site, and then have workers tie them one by one. This involves high-altitude work on the pier, resulting in high labor intensity and difficulty in controlling the quality of the steel binding. This method is labor-intensive, high-altitude work with significant safety risks, high labor intensity, and low construction efficiency. For the pier top crossbeam, a prefabrication and hoisting method can be used. However, high piers usually have a middle crossbeam, and since the reinforcement of the middle crossbeam intersects with the pier body reinforcement, hoisting from prefabricated segments is not feasible. If the crossbeam is fabricated in segments, connecting the segments during installation is difficult. Using conical sleeve mechanical connectors significantly increases costs. Therefore, the conventional method of manual on-site binding followed by formwork installation and concrete pouring is generally used. This method cannot solve the problems of long working hours at height and low construction efficiency. Therefore, a new method for constructing concrete pier crossbeam reinforcement components is proposed to address these issues. Summary of the Invention

[0003] The main objective of this invention is to provide a construction method for reinforced concrete pier beams, which solves the problems of long working hours and low construction efficiency in conventional construction.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a construction method for reinforced concrete pier beams, the method comprising: S1. Divide the crossbeam reinforcement into prefabricated crossbeam reinforcement components and crossbeam reinforcement installed between the two piers, wherein the length of the crossbeam reinforcement components is less than the distance between the two piers. S2. Reinforcing bar unit processing: Process the required reinforcing bar unit according to the design requirements of the beam reinforcing bar components; S3. Fabricate the crossbeam reinforcement components. Install the component forming jig on the assembly site, and then assemble the reinforcement unit components one by one on the component forming jig to form the crossbeam reinforcement components. S4. For the hoisting of the crossbeam reinforcement components, first install the bracket and outer formwork at the crossbeam installation point between the two piers. Then, use hoisting equipment to hoist the crossbeam reinforcement components onto the bracket and outer formwork. Finally, install the reinforcement in the area where the crossbeam reinforcement components intersect with the two piers.

[0005] In the preferred embodiment, the steel reinforcement unit in step S2 includes main reinforcement, stirrups and tie bars, wherein the outer closed-loop stirrups are composed of two U-shaped stirrups, namely the bottom U-shaped stirrup and the top U-shaped stirrup.

[0006] In the preferred embodiment, the component forming jig in step S3 includes a base fixed on the ground. The top of the base is provided with an outer layer main reinforcement positioning device and an inner layer main reinforcement positioning device. The inner layer main reinforcement positioning device is mounted on the outer layer main reinforcement positioning device. The top of the base is also symmetrically provided with two side main reinforcement positioning devices and two stirrup positioning devices. The side main reinforcement positioning devices are mounted on the stirrup positioning devices on the same side. The two side main reinforcement positioning devices and the two stirrup positioning devices are located on both sides of the inner layer main reinforcement positioning device.

[0007] In the preferred embodiment, the bottom outer main reinforcement positioning device consists of multiple longitudinally arranged positioning plates, and the positioning plates are provided with grooves for positioning the main reinforcement. The bottom inner layer main reinforcement positioning device includes a support frame erected on the bottom outer layer main reinforcement positioning device, and a U-shaped seat for positioning the main reinforcement is provided on the support frame. The side main reinforcement positioning device includes a side support mounted on a base, a support rod extending inward on the side support, and a side outer main reinforcement positioning block and a side inner main reinforcement positioning U-shaped block on the support rod. When positioning, the outer side main reinforcement positioning block abuts against the side support, and the side outer main reinforcement is positioned through the gap formed between the side outer main reinforcement positioning block and the stirrup. The stirrup positioning device includes multiple stirrup positioning U-shaped blocks arranged longitudinally on the base.

[0008] In the preferred embodiment, an operating platform is also provided around the component forming jig in step S3; The specific fabrication methods for the crossbeam reinforcement components include: S31. Position and fix the part forming jig, and then install the operating platform around the part forming jig; S32. First, install the bottom U-shaped stirrups using the stirrup positioning device, and make the side of the bottom U-shaped stirrups abut against the inner side of the side support. Then, install the bottom outer main reinforcement on the bottom outer reinforcement positioning device. Use the gap formed between the side outer main reinforcement positioning block and the bottom U-shaped stirrups to position and install the side outer main reinforcement. Then, use the side inner main reinforcement positioning U-shaped block to position and install the side inner main reinforcement. Set up the bottom inner main reinforcement positioning device on the bottom outer main reinforcement. Use the U-shaped seat on the bottom inner main reinforcement positioning device to complete the installation of the bottom inner main reinforcement. S33. Sequentially position and install the bottom hook reinforcement, the side hook reinforcement, and the bottom chamfer hook reinforcement. After installation, install the bottom chamfer main reinforcement at the bottom chamfer hook reinforcement. S34. Then install the inner cavity concrete pad and inner formwork on the inner side. The inner formwork can be used as the reference for the installation of the top surface reinforcement of the component. Then install the top surface tie bar, the top surface chamfer tie bar and the top surface inner cavity main reinforcement in sequence. Then install the top surface main reinforcement positioning bracket on the top surface inner cavity main reinforcement. The top surface main reinforcement positioning bracket is used for the installation and positioning of the top surface main reinforcement. After the top surface main reinforcement is installed, install the top surface U-shaped stirrup. The above steps complete the fabrication of the crossbeam reinforcement components.

[0009] In the preferred embodiment, the support and outer formwork in step S4 include a support set between the two piers, and bottom and side formwork set on the support. Before the beam reinforcement components are hoisted, the side formwork is in an open state.

[0010] In the preferred embodiment, the specific method for installing the reinforcing bars in the cross area in step S4 is as follows: the main reinforcing bars, hook bars, and stirrups in the cross area are installed in sequence. The main reinforcing bars in the cross area are first inserted into the pier body during installation, then pulled back in the opposite direction and connected to the main reinforcing bars of the cross beam using a straight threaded sleeve. The hook bars in the cross area are arranged crosswise between the pier body and the main reinforcing bars in the cross area. The stirrups in the cross area are fitted onto the outside of the inner and outer layers of the main reinforcing bars in the cross area.

[0011] In the preferred embodiment, the two ends of the main reinforcement bars of the crossbeam are symmetrically provided with sliding rotation mechanisms, and the main reinforcement bars in the intersection area are set on the sliding rotation mechanisms. The main reinforcement bars in the intersection area slide and extend at the ends of the main reinforcement bars through the sliding rotation mechanisms, thereby inserting them into the pier body by sliding at the ends of the main reinforcement bars. The sliding rotation mechanism includes a sliding rotation component disposed on the main rib, and a connecting component slidably disposed on the sliding rotation component; The sliding rotating component includes a sliding groove provided on the side of the end of the main rib. A rotating seat connected to the end of the main rib is provided on the back of one end of the sliding groove. A rotating component is rotatably provided on the rotating seat. A receiving groove is provided on the outside of the rotating component. The sliding groove and the receiving groove have the same groove body and are provided with openings that can communicate at opposite ends. The other end of the sliding groove is open. Limiting grooves are provided on the inner wall surfaces of the sliding groove and the receiving groove. The connecting component includes a sliding block that is slidably disposed in a sliding groove, and limiting blocks that are adapted to the limiting groove are provided on both sides of the sliding block. A connecting frame is provided on the side of the sliding block. The main reinforcing bars in the intersection area are movably installed in the connecting frame, and a limit cap is provided at the rear end. The diameter of the limit cap is greater than the width of the connecting frame.

[0012] In the preferred embodiment, a T-shaped groove is provided in the rotating seat, and a T-shaped rotating shaft is rotatably provided in the T-shaped groove. The end of the T-shaped rotating shaft passes through the T-shaped groove and is connected to the rotating component. An annular groove is provided on the inner wall of the T-shaped groove, and multiple balls that are slidably connected to the annular groove are provided on the side of the T-shaped rotating shaft. Locking holes are provided on the opposite side walls of the receiving groove, and locking holes are also provided on the opposite side wall of the sliding groove at the end away from the receiving groove. Locking components that are compatible with the locking holes are provided on the sliding block. The locking component includes a telescopic cavity disposed in the sliding block. Both ends of the telescopic cavity are open through the limiting block. Locking limiting grooves are provided on the opposite inner wall surfaces of the telescopic cavity. A telescopic spring is disposed in the telescopic cavity. Locking pins are provided at both ends of the telescopic spring, which protrude from the openings. Locking limiting blocks that are slidably connected to the locking limiting grooves are provided on the outer side of the ends of the locking pins.

[0013] In the preferred embodiment, the installation method of the expansion joint main reinforcement is as follows: The installation method of the cross zone main reinforcement is as follows: the sliding groove is welded to the side of the end of the main reinforcement of the beam reinforcement component, and the rotating seat is welded to the end of the main reinforcement. Then the cross zone main reinforcement is inserted into the connection frame, and a limit cap is installed at its rear end. Finally, the sliding block of the connection frame is installed into the sliding groove, and the locking component is engaged with the locking hole on the sliding groove. The specific method for installing the reinforcing bars in the cross area in step S4 is as follows: Before hoisting the cross beam reinforcing bar components, the main reinforcing bars in the cross area are temporarily fixed together with the main reinforcing bars of the cross beam reinforcing bar components by binding. After the cross beam reinforcing bar components are hoisted onto the support and outer formwork, the binding connection of the main reinforcing bars in the cross area and the locking component are released from the locking hole of the sliding groove. The main reinforcing bars in the cross area and the connecting component are slid to the end of the cross beam reinforcing bar components, so that the sliding block slides into the receiving groove and the locking component is locked with the locking hole on it. Then, by rotating the rotating component and sliding the main reinforcing bars in the cross area in the connecting frame, the position of the main reinforcing bars in the cross area inserted into the pier body is adjusted. Then, the main reinforcing bars in the cross area and the main reinforcing bars of the cross beam reinforcing bar components are fixed by welding. Finally, the cross area hook bars and cross area stirrups are installed in sequence.

[0014] This invention provides a construction method for reinforced concrete pier beam components. By prefabricating the middle section of the beam reinforcement as a whole, installing the inner formwork during the fabrication of the beam reinforcement components, hoisting the inner formwork and reinforcement components as a whole, and then interleaving the connecting reinforcement between the beam reinforcement components and the pier body, the construction time for on-site reinforcement and formwork is saved, the construction efficiency of pier beam reinforcement is improved, the construction efficiency of beam reinforcement is guaranteed, and the risks of working at heights are reduced. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a structural diagram showing the reinforcement division of the beam in this invention; Figure 2 This is a structural diagram of the crossbeam reinforcement component of the present invention; Figure 3 This is a cross-sectional structural diagram of the beam reinforcement component of this invention; Figure 4This is a diagram of the segmented structure of the stirrups in this invention; Figure 5 This is a schematic diagram illustrating the fabrication of the crossbeam reinforcement component of this invention; Figure 6 This is a structural diagram of the component molding jig of the present invention; Figure 7 This is a side view of the component molding frame of the present invention; Figure 8 This is a schematic diagram of the main reinforcement installation of the present invention; Figure 9 This is a side view of the main reinforcement installation of the present invention; Figure 10 This is a schematic diagram of the installation of the bottom and side stirrups and tie bars of the present invention; Figure 11 This is a schematic diagram of the template and top reinforcement installation of the present invention; Figure 12 This is a schematic diagram of the internal hoisting of the crossbeam steel reinforcement component jig of the present invention; Figure 13 This is a schematic diagram of the crossbeam reinforcement component of the present invention being hoisted onto the crossbeam; Figure 14 This is a schematic diagram of the installation of the components of this invention intersecting with the reinforcing bars of the pier body; Figure 15 This is a structural diagram of the connection between the main reinforcement and the expansion joint reinforcement of the present invention; Figure 16 This is a structural diagram of the sliding rotation mechanism of the present invention; Figure 17 This is a structural diagram of the sliding and rotating component of the present invention; Figure 18 This is a cross-sectional view of the connection structure between the rotating seat and the rotating component of the present invention; Figure 19 This is a structural diagram of the connecting component of the present invention; Figure 20 This is a cross-sectional view of the locking component structure of the present invention; Figure 21 This is an exploded view of the telescopic connection main rib, limiting cap and straight threaded sleeve connection structure of the present invention; In the diagram: 1. Pier body; 2. Horizontal beam reinforcement; 3. Horizontal beam reinforcement component; 31. Bottom U-shaped stirrups; 32. Bottom outer main reinforcement; 33. Side outer main reinforcement; 34. Side inner main reinforcement; 36. Bottom inner main reinforcement; 37. Bottom tie bars; 38. Side tie bars; 39. Bottom chamfered tie bars; 310. Bottom chamfered main reinforcement; 311. Top tie bars; 312. Top chamfered tie bars; 313. Top inner cavity main reinforcement; 314. Top main reinforcement. Positioning bracket 314; Top surface main reinforcement 315; Top surface U-shaped stirrup 316; Intersection area main reinforcement 317; Intersection area tie bar 318; Intersection area stirrup 319; Operating platform 4; Part forming jig 5; Base 51; Bottom surface outer layer main reinforcement positioning device 52; Positioning plate 521; Groove 522; Bottom surface inner layer main reinforcement positioning device 53; Support frame 531; U-shaped seat 532; Side main reinforcement positioning device 54; Side 541; support rod; outer side main reinforcement positioning block; 543; inner side main reinforcement positioning U-shaped block; 544; stirrup positioning device; 55; stirrup positioning U-shaped block; 6; inner cavity concrete pad; 7; hoisting; 8; support and outer formwork; 10; sliding rotation mechanism; 12; sliding rotation component; 121; sliding groove; 1210; rotating seat; 1211; T-shaped rotating shaft; 1213; rotating component; 1214; receiving groove; 1215; ball; 1216; annular groove; 1217; limiting groove; 1219; locking hole; 1220; connecting component; 1221; sliding block; 1222; limiting block; 1223; locking component; 1224; telescopic cavity; 1225; locking limiting groove; 1226; telescopic spring; 1227; locking post; 1228; locking limiting block; 1229; limiting cap; 132. Detailed Implementation

[0016] Example 1 like Figure 1-4 As shown, a method for constructing reinforced concrete pier beam reinforcement components includes: S1. Divide the crossbeam reinforcement 2 into prefabricated crossbeam reinforcement components 3 and crossbeam reinforcement components installed between the two piers 1. The length of the crossbeam reinforcement components 3 is less than the distance between the two piers 1, which facilitates the hoisting of the crossbeam reinforcement components 3. S2. Reinforcing bar unit processing: Process the required reinforcing bar unit according to the design requirements of the beam reinforcing bar component 3. The reinforcing bar unit includes main bars, stirrups, and tie bars. The stirrups and tie bars can be processed using CNC forming equipment. The outer closed-loop stirrup consists of two U-shaped stirrups, namely the bottom U-shaped stirrup 31 and the top U-shaped stirrup 316. In addition, the two ends of the main bars need to be threaded according to the specifications and standards according to the reinforcing bar size, and the threading quality needs to be inspected. Only those that meet the accuracy requirements can be used. The tie bars are bent according to the design drawings. The bending radius, angle, etc. need to meet the design requirements. S3. Fabricate the crossbeam steel reinforcement component 3. Install the component forming jig 5 on the assembly site. An operating platform 4 is also set up around the component forming jig 5 to provide the user with the working space for the crossbeam steel reinforcement component 3. Then, the steel reinforcement unit components are assembled sequentially on the component forming jig 5 to form the crossbeam steel reinforcement component 3. The component forming jig 5 includes a base 51 fixed on the ground. The top of the base 51 is provided with an outer layer main reinforcement positioning device 52 and an inner layer main reinforcement positioning device 53. The inner layer main reinforcement positioning device 53 is mounted on the outer layer main reinforcement positioning device 52. The top of the base 51 is also symmetrically provided with two side main reinforcement positioning devices 54 and two stirrup positioning devices 55. The side main reinforcement positioning devices 54 are mounted on the stirrup positioning devices 55 on the same side. The two side main reinforcement positioning devices 54 and the two stirrup positioning devices 55 are located on both sides of the inner layer main reinforcement positioning device 53. Through the positioning devices of the component forming jig 5, the reinforcement of the crossbeam reinforcement component 3 can be quickly positioned and assembled. The specific manufacturing method of the crossbeam reinforcement component 3 includes: S31. Position and fix the part forming jig 5, and then install the operating platform 4 around the part forming jig 5. S32. First, install the bottom U-shaped stirrup 31 using the stirrup positioning device 55, and make the side of the bottom U-shaped stirrup 31 abut against the inner side of the side support 541. Then, install the bottom outer main reinforcement 32 on the bottom outer main reinforcement positioning device 52. Use the gap formed between the side outer main reinforcement positioning block 543 and the bottom U-shaped stirrup 31 to position and install the side outer main reinforcement 33. Then, use the side inner main reinforcement positioning U-shaped block 544 to position and install the side inner main reinforcement 34. Set up the bottom inner main reinforcement positioning device 53 on the bottom outer main reinforcement 32. Use the U-shaped seat 532 on the bottom inner main reinforcement positioning device 53 to complete the installation of the bottom inner main reinforcement 36. S33. Sequentially position and install the bottom hook rib 37, the side hook rib 38, and the bottom chamfer hook rib 39. After installation, install the bottom chamfer main rib 310 at the bottom chamfer hook rib 39. S34. Then, install the inner cavity concrete pad 7 and inner formwork 6 on the inner side. The inner formwork 6 can be used as the reference for the installation of the top surface reinforcement of the component. Then, install the top surface hook reinforcement 311, the top surface chamfer hook reinforcement 312 and the top surface inner cavity main reinforcement 313 in sequence. Then, install the top surface main reinforcement positioning bracket 314 on the top surface inner cavity main reinforcement 313. The top surface main reinforcement positioning bracket 314 is used for the installation and positioning of the top surface main reinforcement 315. After the top surface main reinforcement 315 is installed, install the top surface U-shaped stirrup 316. The above steps complete the fabrication of the crossbeam reinforcement component 3.

[0017] S4. The beam reinforcement component 3 is hoisted. First, the bracket and outer formwork 10 are installed at the beam installation location between the two piers 1. Then, the beam reinforcement component 3 is hoisted onto the bracket and outer formwork 10 using the hoisting equipment 8. Finally, the reinforcement of the beam reinforcement component 3 and the reinforcement of the area where the two piers 1 intersect are installed. The support and outer formwork 10 includes a support set between two piers 1, and a bottom formwork and a side formwork set on the support. Before the beam reinforcement component 3 is hoisted, the side formwork is in an open state to facilitate the beam reinforcement component 3 being hoisted into the side formwork. After the beam reinforcement component 3 is hoisted, the hoisting 8 is removed. The specific method for installing the reinforcing bars in the intersection area is as follows: install the main reinforcing bars 317, hook bars 318, and stirrups 319 in the intersection area in sequence. When installing the main reinforcing bars 317, first insert them into the pier body 1, then pull them back in the opposite direction and use a straight threaded sleeve to connect them with the main reinforcing bars of the crossbeam reinforcement component 3. The hook bars 318 are arranged crosswise between the pier body 1 and the main reinforcing bars 317 in the intersection area. The stirrups 319 are fitted on the outside of the inner and outer layers of the main reinforcing bars 317 in the intersection area.

[0018] At this point, the construction of a single beam reinforcement 2 is complete. The construction of other beam reinforcement 2 is repeated in the same manner until the construction of all beam reinforcements is completed.

[0019] In this embodiment, by completing the fabrication of the crossbeam reinforcement component 3 on the ground, the on-site time can be effectively reduced, construction efficiency can be greatly improved, and the risks of working at heights can be reduced.

[0020] In the preferred embodiment, the bottom outer main reinforcement positioning device 52 is composed of multiple longitudinally arranged positioning plates 521. The positioning plates are provided with grooves 522 for positioning the main reinforcement, and the bottom outer main reinforcement 32 is positioned and installed using the grooves 522. The bottom inner layer main reinforcement positioning device 53 includes a support frame 531 mounted on the bottom outer layer main reinforcement positioning device 52. The support frame is provided with a U-shaped seat 532 for positioning the main reinforcement. The U-shaped seat 532 is used to realize the positioning and installation of the bottom inner layer main reinforcement 36. The support frame 531 plays a supporting and isolation role. The side main reinforcement positioning device 54 includes a side bracket 541 mounted on a base 51. The side bracket 541 is provided with an inwardly extending support rod 542. The support rod is provided with a side outer main reinforcement positioning block 543 and a side inner main reinforcement positioning U-shaped block 544. When positioning, the outer side main reinforcement positioning block 543 abuts against the side bracket 541. The side outer main reinforcement is positioned through the gap formed between the side outer main reinforcement positioning block 543 and the stirrup, thereby realizing the positioning and installation of the side outer main reinforcement 33 and the side inner main reinforcement 34. At the same time, the side bracket 541 can provide support for the stirrup. The stirrup positioning device 55 includes multiple stirrup positioning U-shaped blocks 551 arranged longitudinally on the base 51, and the stirrups are positioned and installed by means of the left and right symmetrical stirrup positioning U-shaped blocks 551. Example 2 Further explanation in conjunction with Example 1, such as Figure 15-21 As shown in the structure, in order to further simplify the steel bar binding work in the high-altitude intersection area, the two ends of the main reinforcement of the crossbeam steel bar component 3 are symmetrically provided with sliding rotation mechanism 12. The main reinforcement of the intersection area 317 is set on the sliding rotation mechanism 12. The main reinforcement of the intersection area 317 slides and extends at the end of the main reinforcement through the sliding rotation mechanism 12. Thus, by sliding the end of the main reinforcement into the pier body 1, the installation of the main reinforcement of the intersection area 317 can be completed on the ground and hoisted onto the pier body 1 together with the crossbeam steel bar component 3, thereby eliminating the need to insert and install the main reinforcement of the intersection area 317 in the high-altitude area and reducing the high-altitude work process. The sliding rotation mechanism 12 includes a sliding rotation component 121 disposed on the main rib, and a connecting component 122 slidably disposed on the sliding rotation component 121; The sliding rotating component 121 includes a sliding groove 1210 welded to the side of the end of the main rib. A rotating seat 1211 welded to the end of the main rib is provided on the back of one end of the sliding groove 1210. A rotating component 1214 is rotatably provided on the rotating seat 1211. A receiving groove 1215 is provided on the outside of the rotating component 1214. The sliding groove 1210 and the receiving groove 1215 have the same groove body, and both of them have openings that can communicate with each other at opposite ends. The other end of the sliding groove 1210 is open. Limiting grooves 1219 are provided on the inner wall surfaces of the sliding groove 1210 and the receiving groove 1215. The connecting component 122 includes a sliding block 1221 slidably disposed in the sliding groove 1210. Both sides of the sliding block 1221 are provided with limiting blocks 1222 that are adapted to the limiting groove 1219. A connecting frame 1224 is provided on the side of the sliding block 1221. The main reinforcement bar 317 in the intersection area is movably installed in the connecting frame 1224, and a limit cap 132 is provided at the rear end. The diameter of the limit cap 132 is larger than the width of the connecting frame 1224. The rear end of the main reinforcement bar 317 in the intersection area is threaded, and the limit cap 132 is connected to the main reinforcement bar 317 in the intersection area by means of threaded connection.

[0021] Thus, during use, the sliding of the connecting component 122 on the sliding rotating component 121 achieves the effect of expansion and contraction of the main reinforcement bar 317 in the cross zone until it moves into the receiving groove 1215. In addition, the movable setting of the main reinforcement bar 317 in the cross zone on the connecting frame 1224 and the rotation of the rotating component 1214 achieve the effect of adjusting the docking point of the main reinforcement bar 317 in the cross zone, giving the main reinforcement bar 317 a certain degree of freedom, thereby adjusting the position of the insertion into the pier body 1.

[0022] In a preferred embodiment, a T-shaped groove 1212 is provided in the rotating seat 1211, and a T-shaped rotating shaft 1213 is rotatably provided in the T-shaped groove 1212. The end of the T-shaped rotating shaft 1213 extends out of the T-shaped groove 1212 and is connected to the rotating component 1214. An annular groove 1217 is provided on the inner wall of the T-shaped groove 1212, and a plurality of balls 1216 are provided on the side of the T-shaped rotating shaft 1213, which are slidably connected to the annular groove 1217. Through the sliding connection between the balls 1216 and the annular groove 1217, friction can be effectively reduced, making the rotation smoother.

[0023] Locking holes 1220 are provided on the opposite side walls of the receiving groove 1215, and locking holes 1220 are also provided on the opposite side wall of the sliding groove 1210 away from the receiving groove 1215. A locking component 1223 adapted to the locking hole 1220 is provided on the sliding block 1221. Temporary fixation of the connecting component 122 can be achieved through the snap-fit ​​relationship between the locking component 1223 and the locking hole 1220.

[0024] The locking component 1223 includes a telescopic cavity 1225 disposed in the sliding block 1221. Both ends of the telescopic cavity 1225 are open through the limiting block 1222. Locking limiting grooves 1226 are provided on the opposite inner wall surfaces of the telescopic cavity 1225. A telescopic spring 1227 is disposed in the telescopic cavity 1225. Locking pins 1228 are provided at both ends of the telescopic spring 1227, which protrude from the openings. Locking limiting blocks 1229 are provided on the outer side of the ends of the locking pins 1228, which are slidably connected to the locking limiting grooves 1226. This allows the locking pins 1228 to telescopically extend under the action of the telescopic spring 1227, thereby achieving the effect of locking through the locking hole 1220 and unlocking by compression.

[0025] In the preferred embodiment, the installation method of the main reinforcement 317 in the cross section is as follows: the sliding groove 1210 is welded to the side of the end of the main reinforcement of the beam reinforcement component 3, and the rotating seat 1211 is welded to the end of the main reinforcement. Then, the main reinforcement 317 in the cross section is inserted into the connecting frame 1224, and the limiting cap 132 is installed at its rear end to limit the movement. Finally, the sliding block 1221 of the connecting frame 1224 is installed into the sliding groove 1210, and the locking component 1223 is engaged with the locking hole 1220 on the sliding groove 1210. The specific method for installing the reinforcing bars in the intersection area in step S4 is as follows: Before hoisting the crossbeam reinforcement component 3, the main reinforcement bars 317 in the cross section are temporarily fixed together with the main reinforcement bars of the crossbeam reinforcement component 3 by binding. After the crossbeam reinforcement component 3 is hoisted onto the support and outer formwork 10, the binding connection of the main reinforcement bars 317 in the cross section and the locking component 1223 are released from the locking hole 1220 of the sliding groove 1210. The main reinforcement bars 317 in the cross section and the connecting component 122 are slid to the end of the crossbeam reinforcement component 3, so that the sliding block 1221 slides into the receiving groove 1215. The locking component 1223 is locked with the locking hole 1220 on it. Then, by rotating the rotating component 1214 and sliding the main reinforcement bars 317 in the cross section in the connecting frame 1224, the position of the main reinforcement bars 317 in the cross section is adjusted. Then, the main reinforcement bars 317 in the cross section and the main reinforcement bars of the crossbeam reinforcement component 3 are fixed by welding. Finally, the cross section hook bars 318 and cross section stirrups 319 are installed in sequence.

[0026] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A method for constructing reinforced concrete pier beam reinforcement components, characterized by: The method includes: S1. Divide the crossbeam reinforcement (2) into prefabricated crossbeam reinforcement components (3) and crossbeam reinforcement installed between the two piers (1), wherein the length of the crossbeam reinforcement components (3) is less than the distance between the two piers (1); S2. Steel reinforcement unit processing: Process the required steel reinforcement unit according to the design requirements of the beam steel reinforcement component (3); S3. Make the crossbeam steel reinforcement component (3), install the component forming jig (5) on the assembly site, and then complete the assembly of the steel reinforcement unit on the component forming jig (5) to form the crossbeam steel reinforcement component (3). S4. The beam reinforcement component (3) is hoisted. First, the bracket and outer formwork (10) are installed at the beam installation location between the two piers (1). Then, the beam reinforcement component (3) is hoisted onto the bracket and outer formwork (10) using the hoisting equipment (8). Finally, the reinforcement of the beam reinforcement component (3) and the reinforcement of the area where the two piers (1) intersect are installed. The specific method for installing the reinforcing bars in the cross area in step S4 is as follows: install the main reinforcing bars (317), hook bars (318), and stirrups (319) in the cross area in sequence. The main reinforcing bars (317) in the cross area are first inserted into the pier body (1) during installation, and then pulled back in the opposite direction and connected to the main reinforcing bars of the cross beam reinforcing component (3) using a straight thread sleeve. The hook bars (318) in the cross area are arranged between the pier body (1) and the main reinforcing bars (317) in the cross area. The stirrups (319) in the cross area are fitted on the outside of the inner and outer layers of the main reinforcing bars (317) in the cross area. The main reinforcement of the crossbeam reinforcement component (3) is symmetrically provided with a sliding rotation mechanism (12) at both ends. The main reinforcement (317) in the intersection area is provided on the sliding rotation mechanism (12). The main reinforcement (317) in the intersection area slides and extends at the end of the main reinforcement through the sliding rotation mechanism (12), thereby being inserted into the pier body (1) by sliding at the end of the main reinforcement. The sliding rotation mechanism (12) includes a sliding rotation component (121) disposed on the main rib, and a connecting component (122) slidably disposed on the sliding rotation component (121). The sliding rotating component (121) includes a sliding groove (1210) provided on the side of the end of the main rib. A rotating seat (1211) connected to the end of the main rib is provided on the back of one end of the sliding groove (1210). A rotating component (1214) is rotatably provided on the rotating seat (1211). A receiving groove (1215) is provided on the outside of the rotating component (1214). The sliding groove (1210) and the receiving groove (1215) have the same groove body, and both of them have a communicating opening at opposite ends. The other end of the sliding groove (1210) is open. Limiting grooves (1219) are provided on the inner wall surfaces of the sliding groove (1210) and the receiving groove (1215). The connecting component (122) includes a sliding block (1221) slidably disposed in the sliding groove (1210), and a limiting block (1222) adapted to the limiting groove (1219) is provided on both sides of the sliding block (1221). A connecting frame (1224) is provided on the side of the sliding block (1221). The main reinforcement (317) in the intersection area is movably set in the connecting frame (1224), and a limit cap (132) is provided at the rear end. The diameter of the limit cap (132) is greater than the width of the connecting frame (1224). A T-shaped groove (1212) is provided in the rotating seat (1211), and a T-shaped rotating shaft (1213) is rotatably provided in the T-shaped groove (1212). The end of the T-shaped rotating shaft (1213) passes through the T-shaped groove (1212) and is connected to the rotating component (1214). An annular groove (1217) is provided on the inner wall of the T-shaped groove (1212), and multiple balls (1216) that are slidably connected to the annular groove (1217) are provided on the side of the T-shaped rotating shaft (1213). Locking holes (1220) are provided on the opposite side walls of the receiving groove (1215), and locking holes (1220) are also provided on the opposite side wall of the sliding groove (1210) at the end away from the receiving groove (1215). Locking components (1223) that are compatible with locking holes (1220) are provided on the sliding block (1221). The locking component (1223) includes a telescopic cavity (1225) disposed in the sliding block (1221). The two ends of the telescopic cavity (1225) are open through the limiting block (1222). Locking limiting grooves (1226) are provided on the opposite inner wall surfaces of the telescopic cavity (1225). A telescopic spring (1227) is disposed in the telescopic cavity (1225). Locking pins (1228) are provided at both ends of the telescopic spring (1227) and protrude from the opening. Locking limiting blocks (1229) that are slidably connected to the locking limiting grooves (1226) are provided on the outer side of the ends of the locking pins (1228). The installation method of the main reinforcement (317) in the cross area is as follows: the sliding groove (1210) is welded to the side of the end of the main reinforcement of the cross beam reinforcement component (3), and the rotating seat (1211) is welded to the end of the main reinforcement. Then the main reinforcement (317) in the cross area is inserted into the connecting frame (1224), and the limiting cap (132) is installed at its rear end. Finally, the sliding block (1221) of the connecting frame (1224) is installed into the sliding groove (1210), and the locking component (1223) is engaged with the locking hole (1220) on the sliding groove (1210). The specific method for installing the reinforcing bars in the cross area in step S4 is as follows: Before hoisting the cross beam reinforcing bar component (3), the main reinforcing bars (317) in the cross area are temporarily fixed together with the main reinforcing bars of the cross beam reinforcing bar component (3) by binding. After the cross beam reinforcing bar component (3) is hoisted onto the support and the outer formwork (10), the binding connection of the main reinforcing bars (317) in the cross area and the locking component (1223) are released from the locking hole (1220) of the sliding groove (1210), and the main reinforcing bars (317) in the cross area and the connecting component (122) are slid to the end of the cross beam reinforcing bar component (3). The sliding block (1221) is slid into the receiving groove (1215), and the locking component (1223) engages with the locking hole (1220) on it. Then, by rotating the rotating component (1214) and sliding the main reinforcement (317) in the cross section in the connecting frame (1224), the position of the main reinforcement (317) in the cross section is adjusted. Then, the main reinforcement (317) in the cross section is fixed with the main reinforcement of the cross beam reinforcement component (3) by welding. Finally, the cross section hook reinforcement (318) and the cross section stirrup (319) are installed in sequence.

2. The construction method for reinforced concrete pier beams according to claim 1, characterized in that: The steel reinforcement unit in step S2 includes main reinforcement, stirrups and tie bars. The outer ring of closed-loop stirrups consists of two U-shaped stirrups, namely the bottom U-shaped stirrup (31) and the top U-shaped stirrup (316).

3. The construction method for reinforced concrete pier beams according to claim 2, characterized in that: The component forming jig (5) in step S3 includes a base (51) fixed on the ground. The top of the base (51) is provided with a bottom outer main reinforcement positioning device (52) and a bottom inner main reinforcement positioning device (53). The bottom inner main reinforcement positioning device (53) is mounted on the bottom outer main reinforcement positioning device (52). The top of the base (51) is also symmetrically provided with two side main reinforcement positioning devices (54) and two stirrup positioning devices (55). The side main reinforcement positioning devices (54) are mounted above the stirrup positioning devices (55) on the same side. The two side main reinforcement positioning devices (54) and the two stirrup positioning devices (55) are located on both sides of the bottom inner main reinforcement positioning device (53).

4. The construction method for reinforced concrete pier beams according to claim 3, characterized in that: The bottom outer layer main reinforcement positioning device (52) consists of multiple longitudinally arranged positioning plates (521), and the positioning plates are provided with grooves (522) for positioning the main reinforcement. The bottom inner layer main reinforcement positioning device (53) includes a support frame (531) erected on the bottom outer layer main reinforcement positioning device (52), and a U-shaped seat (532) for positioning the main reinforcement is provided on the support frame. The side main reinforcement positioning device (54) includes a side support (541) mounted on a base (51), a support rod (542) extending inward on the side support (541), and a side outer main reinforcement positioning block (543) and a side inner main reinforcement positioning U-shaped block (544) on the support rod. When the side outer main reinforcement positioning block (543) is positioned, the outer side of the stirrup abuts against the side support (541), and the side outer main reinforcement is positioned through the gap formed between the side outer main reinforcement positioning block (543) and the stirrup. The stirrup positioning device (55) includes multiple stirrup positioning U-shaped blocks (551) arranged longitudinally on the base (51).

5. The construction method for reinforced concrete pier beams according to claim 4, characterized in that: In step S3, an operating platform (4) is also provided around the component forming jig (5). The specific manufacturing method of the crossbeam reinforcement component (3) includes: S31. Position and fix the part forming jig (5), and then install the operating platform (4) around the part forming jig (5). S32. First, use the stirrup positioning device (55) to install the bottom U-shaped stirrup (31) and make the side of the bottom U-shaped stirrup (31) abut against the inside of the side support (541). Then, install the bottom outer main reinforcement (32) on the bottom outer main reinforcement positioning device (52). Use the gap formed between the side outer main reinforcement positioning block (543) and the bottom U-shaped stirrup (31) to position and install the side outer main reinforcement (33). Then, use the side inner main reinforcement positioning U-shaped block (544) to position and install the side inner main reinforcement (34). Set up the bottom inner main reinforcement positioning device (53) on the bottom outer main reinforcement positioning device (52). Use the U-shaped seat (532) on the bottom inner main reinforcement positioning device (53) to complete the installation of the bottom inner main reinforcement (36). S33. Sequentially position and install the bottom hook reinforcement (37), the side hook reinforcement (38), and the bottom chamfer hook reinforcement (39). After installation, install the bottom chamfer main reinforcement (310) at the bottom chamfer hook reinforcement (39). S34. Then install the inner cavity concrete pad (7) and inner formwork (6) on the inner side. The inner formwork (6) can be used as the reference for the installation of the top surface reinforcement of the component. Then install the top surface hook reinforcement (311), the top surface chamfer hook reinforcement (312) and the top surface inner cavity main reinforcement (313) in sequence. Then install the top surface main reinforcement positioning bracket (314) on the top surface inner cavity main reinforcement (313). The top surface main reinforcement positioning bracket (314) is used for the installation and positioning of the top surface main reinforcement (315). After the top surface main reinforcement (315) is installed, install the top surface U-shaped stirrup (316). The above steps complete the fabrication of the crossbeam reinforcement component (3).

6. The construction method for reinforced concrete pier beams according to claim 5, characterized in that: The support and outer formwork (10) in step S4 include the support set between the two piers (1), and the bottom formwork and side formwork set on the support. Before the beam reinforcement component (3) is hoisted, the side formwork is in an open state.

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