Reinforcement cage positioning device applied to pier column construction and using method of reinforcement cage positioning device

Abstract

The invention provides a reinforcement cage positioning device applied to pier column construction and a using method of the reinforcement cage positioning device, and relates to the technical field of pier column construction.The reinforcement cage positioning device applied to pier column construction comprises a plurality of vertical reinforcements which are annularly distributed at intervals; the reinforcement cage positioning device applied to pier column construction comprises a positioning circular ring and a plurality of fastening assemblies, the positioning circular ring is provided with a plurality of through holes which are annularly distributed at intervals, and the vertical steel bars correspondingly penetrate through the through holes; and the fastening assemblies are detachably arranged on the corresponding vertical steel bars in a sleeving mode, and the fastening assemblies are located below the positioning circular ring so as to support the positioning circular ring. A plurality of vertical steel bars of the steel reinforcement cage can be positioned, the assembling construction cost of the steel cover beam and the vertical steel bars is reduced, and the construction efficiency of the steel cover beam and the vertical steel bars is improved.

Description

Technical Field

[0001] This invention relates to the field of pier construction technology, and more specifically, to a rebar cage positioning device and its usage method applied to pier construction. Background Technology

[0002] In the field of bridge engineering, especially in the construction of modern bridges using prefabricated steel structure cap beams (hereinafter referred to as "steel cap beams"), the construction accuracy of the vertical reinforcement of the piers directly determines the installation quality and efficiency of the superstructure.

[0003] In related technologies, during the construction of piers, after the vertical reinforcing bars of the pier's steel cage are positioned, the flowing concrete exerts continuous and uneven radial lateral pressure on the vertical reinforcing bars during the pouring and vibration of the pier concrete. This causes the vertical reinforcing bars to deviate. When the vertical reinforcing bars are inserted into or extended into the bottom slab of the steel cap beam, the deviated vertical reinforcing bars cannot accurately align with the original reinforcing bar holes of the steel cap beam. In this case, it is necessary to re-open reinforcing bar holes at the bottom of the steel cap beam, resulting in higher assembly costs and lower construction efficiency for the steel cap beam and vertical reinforcing bars. Summary of the Invention

[0004] The problem solved by this invention is how to position multiple vertical reinforcing bars in a steel cage, thereby reducing the assembly and construction costs of the steel cap beam and the vertical reinforcing bars and improving its construction efficiency.

[0005] To address the aforementioned problems, this invention provides a rebar cage positioning device for use in pier construction and its application method.

[0006] In a first aspect, the present invention provides a rebar cage positioning device for use in pier construction, the rebar cage comprising a plurality of vertical rebars arranged in a ring at intervals, the rebar cage positioning device for use in pier construction comprising: A positioning ring, wherein the positioning ring is provided with a plurality of through holes distributed in a ring at intervals, the plurality of through holes being used for the plurality of vertical reinforcing bars to pass through correspondingly; Multiple fastening components are provided, each of which is detachably sleeved on the corresponding vertical reinforcing bar. The fastening components are located below the positioning ring to support the positioning ring.

[0007] Optionally, the fastening assembly includes a collar structure comprising at least two first arc segments arranged in a ring and enclosing each other to form the collar structure for fitting the vertical reinforcing bar; the collar structure is located below the positioning ring.

[0008] Optionally, the fastening assembly further includes an outer ring with a tapered internal thread, and the outer peripheral wall of each of the first arc segments is provided with a tapered external thread. The plurality of first arc segments are distributed in a ring-shaped interval and surround each other to form the collar structure. The outer ring is sleeved on the collar structure, and the tapered internal thread of the outer ring is threadedly connected to the tapered external thread of each of the first arc segments.

[0009] Optionally, the fastening assembly further includes a first rubber ring, which is used to fit over the vertical reinforcing bar and is located inside the collar structure.

[0010] Optionally, the fastening assembly further includes a second rubber ring, which is used to fit over the vertical reinforcing bar and is positioned above the collar structure and between the positioning ring.

[0011] Optionally, the collar structure includes two first arc segments, one end of one first arc segment is rotatably connected to one end of the other first arc segment, and the other end of one first arc segment is detachably connected to the other end of the other first arc segment.

[0012] Optionally, the positioning ring includes a plurality of second arc segments, which are arranged in a ring and enclose each other to form the positioning ring, and adjacent second arc segments are fixedly connected; each second arc segment is provided with a plurality of perforations distributed along its arc.

[0013] Optionally, the rebar cage positioning device applied to pier construction also includes a reinforcing structure, which has multiple connecting parts distributed in a ring at intervals, and the multiple connecting parts are fixedly connected to different positions on the circumferential edge of the positioning ring.

[0014] Optionally, the reinforcing structure includes multiple connecting rods, which are arranged intersectingly to form an intersection point. The intersection point coincides with the center of the positioning ring, and each connecting rod has two connecting portions.

[0015] Secondly, the present invention provides a method for using a rebar cage positioning device applied to pier construction, based on the rebar cage positioning device for pier construction as described above, comprising the following steps: The initial positioning of the steel reinforcement cage for the pier column is carried out. At the same elevation position of multiple vertical reinforcing bars in the steel cage, a first installation position mark for the fastening assembly and a second installation position mark for the positioning disc are respectively made; wherein, the first installation position mark is lower than the second installation position mark; Based on the positions of the multiple vertical reinforcing bars, the positioning ring is machined with multiple through holes corresponding to the multiple vertical reinforcing bars; First, each of the fastening components is fitted onto the corresponding vertical reinforcing bars. Then, the positioning ring is placed above the fastening components, and each of the vertical reinforcing bars is passed through the corresponding hole of the positioning ring to achieve the repositioning of the reinforcing cage.

[0016] The beneficial effects of the steel cage positioning device and its usage method applied to pier construction of the present invention are as follows: The rebar cage positioning device may include a positioning ring and multiple fastening components distributed in a ring at intervals. The rebar cage of the pier column includes multiple vertical rebars arranged in a ring at intervals. Each fastening component corresponds to the position of the corresponding vertical rebar. Each fastening component is detachably sleeved on the vertical rebar so that the vertical rebar is fixedly connected to the fastening components of the positioning device through the mechanical cooperation between the fastening component and the vertical rebar.

[0017] A positioning ring with multiple perforations spaced in a ring can be placed on a reinforcing cage, with multiple vertical reinforcing bars passing through corresponding perforations on the positioning ring. Each perforation of the positioning ring radially constrains the corresponding vertical reinforcing bar, limiting its horizontal displacement, until the positioning ring is secured by multiple fastening components. These fastening components support the positioning ring, enabling the positioning of multiple vertical reinforcing bars in the reinforcing cage using the multiple perforations of the positioning ring. In short, the positioning ring's multiple perforations and the cooperation of multiple fastening components allow for the positioning of multiple vertical reinforcing bars in the reinforcing cage. The steel cage is constructed by fixing multiple vertical steel bars arranged in a ring to form an integral structure. This allows the force exerted by the concrete on the steel cage during the pouring stage to be evenly transmitted around the circumference of the steel cage and then distributed to the positioning rings through each fastening component. This ensures that the vertical steel bars of the steel cage will not shift during the subsequent pouring of concrete into the steel cage. This enables the multiple steel bar holes of the steel cap beam to be accurately aligned with the top positions of the multiple vertical steel bars of the steel cage. This not only reduces the assembly cost of the steel cap beam and the vertical steel bars but also improves the construction efficiency of the pier column. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cooperation structure between the reinforcing cage and the positioning device in an embodiment of the present invention; Figure 2 This is a schematic diagram of the mating structure between the positioning ring and the reinforcing structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the cooperation structure between the vertical reinforcing bar and the positioning device in an embodiment of the present invention; Figure 4 This is a schematic diagram of the collar structure and the outer ring in one embodiment of the present invention; Figure 5 This is a schematic diagram of the collar structure in another embodiment of the present invention; Figure 6This is an exploded view of the positioning ring in an embodiment of the present invention; Figure 7 This is one of the schematic diagrams of the assembly structure of the vertical reinforcing bars and the positioning device in an embodiment of the present invention; Figure 8 This is a second schematic diagram of the assembly structure of the vertical reinforcing bars and the positioning device in an embodiment of the present invention; Figure 9 This is the third schematic diagram of the assembly structure of the vertical reinforcing bars and the positioning device in an embodiment of the present invention; Figure 10 This is the fourth schematic diagram of the assembly structure of the vertical reinforcing bars and the positioning device in this embodiment of the invention; Figure 11 This is a schematic diagram of the structure of the first pier in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the second pier in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100 - Positioning ring; 110 - Second arc segment; 111 - Through hole; 200 - Fastening assembly; 210 - Collar structure; 211 - First arc segment; 2110 - Tapered external thread; 212 - Pin; 213 - Connector; 220 - Outer ring; 221 - Tapered internal thread; 230 - First rubber ring; 240 - Second rubber ring; 300 - Reinforcing structure; 310 - Connecting rod; 400 - Reinforcing cage; 410 - Vertical reinforcing bar; 500 - First pier; 600 - Second pier. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Although some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0021] In the accompanying drawings, the X-axis represents the radial position of the positioning device, with the positive direction of the X-axis representing the radial right and the negative direction representing the radial left. The Z-axis represents the vertical position, with the positive direction of the Z-axis representing the top and the negative direction representing the bottom. It should be noted that the aforementioned representations of the X and Z axes are for ease of description and simplification of the invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0022] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this invention are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0023] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention provides a rebar cage positioning device for pier construction. The rebar cage includes multiple vertical rebars distributed in a ring at intervals. The rebar cage positioning device for pier construction includes: The positioning ring 100 is provided with a plurality of through holes 111 arranged in a ring at intervals, and the plurality of through holes 111 are used for the plurality of vertical reinforcing bars 410 to pass through accordingly; Multiple fastening components 200 are provided, each of which is detachably sleeved on the corresponding vertical reinforcing bar 410. The fastening components 200 are located below the positioning ring 100 to support the positioning ring 100.

[0025] Specifically, the pier may include a reinforcing cage 400 and concrete poured later. The reinforcing cage 400 includes multiple vertical reinforcing bars 410 distributed in a ring at intervals. The multiple vertical reinforcing bars 410 are fixedly connected to the foundation. A support formwork can be set around the reinforcing cage 400, and concrete can be poured inside the support formwork. After the concrete solidifies, it is tightly integrated with the reinforcing cage 400 to form the pier. The bottom of the steel cap beam is provided with multiple reinforcing bar holes. The number of reinforcing bar holes is greater than or equal to the number of vertical reinforcing bars 410 to ensure that the steel cap beam can be connected to the top of the vertical reinforcing bars 410 of the reinforcing cage 400.

[0026] The number of perforations 111 can be greater than or equal to the number of vertical reinforcing bars 410 in the reinforcing cage 400; the inner diameter of the perforation 111 is slightly larger than the outer diameter of the vertical reinforcing bar 410, so that the vertical reinforcing bar 410 can be smoothly inserted into the perforation 111 of the positioning ring 100, and it helps the fastening assembly 200 and the positioning ring 100 to be adjusted vertically along the axial direction of the vertical reinforcing bar 410.

[0027] In this embodiment, the positioning device for the reinforcing cage 400 may include a positioning ring 100 and a plurality of fastening components 200 arranged in a ring at intervals. The reinforcing cage 400 of the pier column includes a plurality of vertical reinforcing bars 410 arranged in a ring at intervals. Each fastening component 200 corresponds to the position of the corresponding vertical reinforcing bar 410. Each fastening component 200 is detachably sleeved on the vertical reinforcing bar 410 so that the vertical reinforcing bar 410 is fixedly connected to the fastening component 200 of the positioning device through the mechanical cooperation between the fastening component 200 and the vertical reinforcing bar 410.

[0028] A positioning ring 100 with multiple perforations 111 arranged in a ring can be placed on a reinforcing cage 400, with multiple vertical reinforcing bars 410 respectively passing through the corresponding perforations 111 on the positioning ring 100. Each perforation 111 of the positioning ring 100 radially constrains the corresponding vertical reinforcing bar 410, limiting its horizontal displacement, until the positioning ring 100 is supported by multiple fastening components 200. This achieves the positioning operation of the multiple perforations 111 of the positioning ring 100 on the multiple vertical reinforcing bars 410 of the reinforcing cage 400. In short, the multiple perforations 111 of the positioning ring 100 can be used to position the multiple vertical reinforcing bars 410 of the reinforcing cage 400. In conjunction with multiple fastening components 200, the multiple vertical reinforcing bars 410 of the reinforcing cage 400, which are distributed in a ring at intervals, are fixed into an integral reinforcing cage 400 structure. This ensures that the force of the concrete acting on the reinforcing cage 400 during the pouring stage is evenly transmitted around the circumference of the reinforcing cage 400 and then distributed to the positioning ring through each fastening component. This ensures that the vertical reinforcing bars 410 of the reinforcing cage 400 will not shift during the subsequent pouring of concrete into the reinforcing cage 400. This allows for accurate alignment of the multiple reinforcing bar holes of the steel cap beam with the top positions of the multiple vertical reinforcing bars 410 of the reinforcing cage 400, which not only reduces the assembly cost of the steel cap beam and the vertical reinforcing bars 410, but also improves the construction efficiency of the pier column.

[0029] The fastening component 200 is detachably connected to the vertical reinforcing bar 410 so that it can be removed and reused after the pier construction is completed.

[0030] Optionally, combined Figure 4 As shown, the collar structure 210 is not a single circular ring, but rather composed of multiple (at least two) arc-shaped segments assembled together. For example, the fastening assembly 200 includes the collar structure 210, which includes at least two first arc segments 211. The at least two first arc segments 211 are arranged in a ring and enclose each other to form the collar structure 210 for fitting the vertical reinforcing bar 410. The collar structure 210 is located below the positioning ring 100.

[0031] Specifically, at least two first circular arc segments 211 can be distributed in a ring on a plane parallel to the horizontal plane.

[0032] In the at least two first arc segments 211 of the collar structure 210, the arc lengths of adjacent first arc segments 211 may be the same or different.

[0033] In this optional embodiment, if the collar structure is an integral closed ring, it can only be inserted from the top of the vertical reinforcing bar 410. If the reinforcing cage 400 has been tied and erected on site, the collar structure, which is a closed ring, cannot be inserted from the top of the vertical reinforcing bar 410.

[0034] The ring structure 210 includes at least two first arc segments 211 arranged in a ring. Therefore, the split-design ring structure 210 allows construction workers to directly assemble and fasten the ring 100 on-site at any height of the steel cage 400 where support and positioning rings 100 are required, without having to consider the installation sequence. This completely eliminates the constraint of having to install from the top of the vertical steel bars 410, greatly improving the adaptability and flexibility of construction.

[0035] Furthermore, the ring structure 210 formed by at least two first arc segments 211 arranged in a ring and tightly enclosing each other can generate sufficient friction and mechanical engagement with the circumferential surface of the vertical reinforcing bar 410, forming a reliable connection node. Under subsequent concrete scouring and vibration, this reduces the probability of relative slippage between the fastening component 200 and the vertical reinforcing bar 410. The ring structure 210 formed by the overall enclosing of multiple first arc segments 211 provides uniform clamping force, ensuring the stability of the connection. The supporting force on the positioning ring 100 is stably transmitted to the vertical reinforcing bar 410, while the lateral force on the vertical reinforcing bar 410 is dispersed through the ring structure 210, effectively suppressing the displacement tendency of the vertical reinforcing bar 410.

[0036] Optionally, combined Figure 4 As shown, the fastening assembly 200 further includes an outer ring 220 with a tapered internal thread 221, and the outer peripheral wall of each of the first arc segments 211 is provided with a tapered external thread 2110. The plurality of first arc segments 211 are distributed in a ring at intervals and enclose each other to form the collar structure 210. The outer ring 220 is sleeved on the collar structure 210, and the tapered internal thread 221 of the outer ring 220 is threadedly connected to the tapered external thread 2110 of the first arc segment 211.

[0037] Specifically, the tapered internal thread 221 of the outer ring 220 is adapted to the structure of the tapered external thread 2110 provided on the first arc segment 211, and the two are threadedly connected.

[0038] The tapered internal thread 221 of the outer ring 220 can be understood as the thread inner diameter of the outer ring 220 gradually decreasing or increasing from one end to the other; the tapered external thread 2110 of the first arc segment 211 can be understood as the thread outer diameter of the first arc segment 211 gradually decreasing or increasing from one end to the other.

[0039] Multiple first arc segments 211 are distributed in a ring-shaped interval, which can be used to form the collar structure 210 with different diameters (i.e., with multiple gaps); the outer ring 220 with an inner diameter that matches the inner diameter can be selected according to the collar structure 210 with different inner diameters.

[0040] In this optional embodiment, the fastening assembly 200 can be fixedly connected to the vertical reinforcing bar 410 in the following manner: for example, a collar structure 210 formed by multiple first arc segments 211 arranged in a ring is fitted onto the outside of the vertical reinforcing bar 410, and an outer ring 220 is fitted onto the outside of the collar structure 210. The construction personnel can operate the outer ring 220 to rotate. By utilizing the non-equal diameter characteristics of the tapered internal thread 221 and the tapered external thread 2110, all the first arc segments 211 can be driven simultaneously along the diameter of the vertical reinforcing bar 410. The inner diameter of the collar structure 210 is contracted to tighten the reinforcing bar. Through the self-locking characteristic of the thread pair composed of the tapered internal thread 221 and the tapered external thread 2110, mechanical locking is naturally achieved when the appropriate tightness is reached, thereby realizing the rapid fixing of the fastening component 200 and the vertical reinforcing bar 410. After the construction is completed, the outer ring 220 can be rotated in the opposite direction to disengage the outer ring 220 from the outside of the collar structure 210, and then the collar structure 210 can be removed from the circumference of the vertical reinforcing bar 410.

[0041] Furthermore, the diameter of the vertical reinforcing bars 410 at the construction site may vary. If the inner diameter of the collar structure 210 is a fixed size, multiple models of collar structures 210 will be required, leading to increased costs. To address this, multiple first arc segments 211, arranged in a ring at intervals, can be placed around the vertical reinforcing bars 410 according to their outer diameters. Then, an outer ring 220 matching the outer diameter of the collar structure 210 is tightened to the outside of the collar structure 210. This improves the versatility of the split collar structure 210 for vertical reinforcing bars 410 of different diameters. Only the outer ring 220 corresponding to the vertical reinforcing bar 410 or a collar structure 210 with a different outer diameter needs to be replaced, thus reducing the cost of the fastening assembly 200.

[0042] In related technologies, the surface of the vertical reinforcing bar 410 may have rust, dust, rolled ribs or minor unevenness. If the rigid metal collar structure 210 is brought into contact with this non-ideal surface of the vertical reinforcing bar 410, point contact or line contact will occur, resulting in contact stress concentration and uneven pressure.

[0043] Optionally, combined Figure 3As shown, the fastening assembly 200 also includes a first rubber ring 230, which is used to be sleeved on the vertical reinforcing bar 410 and is located inside the collar structure 210.

[0044] Specifically, the inner diameter of the first rubber ring 230 can be greater than or equal to the outer diameter of the vertical reinforcing bar 410, so that the first rubber ring 230 can be smoothly fitted onto the outside of the vertical reinforcing bar 410.

[0045] The first rubber ring 230 can be located between the outer side of the vertical steel bar 410 and the inner side of the collar structure 210.

[0046] In this optional embodiment, a first rubber ring 230, made of, for example, rubber (or a similar elastic material), is directly fitted onto the outer surface of the vertical reinforcing bar 410. This can serve as a "flexible interface layer" or "stress buffer" between the vertical reinforcing bar 410 and the collar structure 210. When the collar structure 210, formed by multiple first arc segments 211 arranged in a ring, is fitted onto the first rubber ring 230, the multiple first arc segments 211 in the collar structure 210, which has a split structure, can contract radially under the tightening action of an external force, such as the outer ring 220. This pressure first acts on the first rubber ring 230, causing the first rubber ring 230 to undergo elastic deformation. This disperses the concentrated locking force evenly across the entire annular surface in contact with the vertical reinforcing bar, changing the "point / line contact" to "surface contact." The deformed first rubber ring 230 can enhance the anti-slip, anti-torsion, and anti-vertical slippage effects between the first rubber ring 230 and the collar structure 210.

[0047] Optionally, combined Figure 3 As shown, the fastening assembly 200 also includes a second rubber ring 240, which is used to be sleeved on the vertical reinforcing bar 410 and is located above the collar structure 210 and between the positioning ring 100.

[0048] Specifically, the inner diameter of the second rubber ring 240 can be larger than the diameter of the vertical reinforcing bar 410 so that the second rubber ring 240 can be smoothly fitted onto the vertical reinforcing bar 410; the outer diameter of the second rubber ring 240 can be greater than or equal to the outer diameter of the collar structure 210.

[0049] In this optional embodiment, if the upper surface of the collar structure 210 and the lower surface of the positioning ring 100 are both made of hard materials, direct contact may result in point or line contact due to microscopic unevenness or installation tilt. The vibration generated by concrete vibration will be transmitted through the vertical reinforcing bar 410 and the collar structure 210. In this case, the vibration energy will directly impact the positioning ring 100, which may cause it to bounce slightly or induce high-frequency micro-slippage between it and the vertical reinforcing bar 410, interfering with the long-term maintenance of positioning accuracy. Therefore, by placing the second rubber ring 240 on top of the already secured collar structure 210 and between the collar structure 210 and the lower surface of the positioning ring 100, the second rubber ring 240 can serve as (or equivalent to) an "elastic support pad" and an "interfacial stress distribution layer." The positioning ring 100 exerts downward pressure on the second rubber ring 240, causing the second rubber ring 240 to undergo elastic deformation. This elastic deformation of the second rubber ring 240 distributes the supporting force evenly over a larger contact surface of the positioning ring 100, avoiding indentations or deformation caused by point contact. Simultaneously, the second rubber ring 240 absorbs and isolates some of the vibration and impact from below.

[0050] In addition, the elasticity of the second rubber ring 240 can not only compensate for the micro-parallelism between the top of the collar structure 210 and the lower surface of the positioning ring 100, ensuring that the support surface is fully fitted and achieving stable surface contact, making the positioning ring 100 more stable, but also dampen the vibration transmitted to the positioning ring 100, reducing the internal micro-disturbance of the entire steel cage 400 positioning device in the dynamic construction environment.

[0051] Combination Figure 5 As shown, the collar structure 210 includes two first arc segments 211, one end of one first arc segment 211 is rotatably connected to one end of the other first arc segment 211, and the other end of one first arc segment 211 is detachably connected to the other end of the other first arc segment 211.

[0052] Specifically, unlike the previous embodiment, in this embodiment, the two first arc segments 211 of the collar structure 210 can be detachably fixed to the outside of the vertical steel bar 410.

[0053] The collar structure 210 also includes a pin 212, and one end of one of the first arc segments 211 and one end of another of the first arc segments 211 can be rotatably connected by, for example, a pin 212, a hinge or a pivot.

[0054] For example, the collar structure 210 also includes a connector 213, and the other end of one first arc segment 211 and the other end of another first arc segment 211 can be detachably connected by the connector 213. The connector 213 can be a bolt fastener, a pin, a snap-fit ​​structure, etc.

[0055] In this optional embodiment, the rotatable connection at one end of the two first arc segments 211 ensures that the collar structure 210 is always managed as a single unit, preventing the components of the collar structure 210 from scattering or being lost. The rotatable connection also simplifies the installation of the two first arc segments 211 into a rotational motion around the hinge point. The other ends of the two first arc segments 211 are detachably connected, allowing for locking of the collar structure 210 and release of the vertical reinforcing bar 410 in the working state and facilitating the assembly and disassembly of the collar structure 210 and the vertical reinforcing bar 410.

[0056] Optionally, combined Figure 6 As shown, the positioning ring 100 includes a plurality of second arc segments 110, which are arranged in a ring and enclose each other to form the positioning ring 100. Adjacent second arc segments 110 are fixedly connected. Each second arc segment 110 is provided with a plurality of through holes 111 distributed along its arc.

[0057] Specifically, the arc lengths of the multiple second circular arc segments 110 can be the same or different.

[0058] The two adjacent second arc segments 110 can be fixedly connected by means of pin structure, bolt fasteners, welding or other methods.

[0059] In this optional embodiment, the positioning ring 100 is not an indivisible whole, but can be assembled from multiple arc-shaped segments (second arc segments 110), enabling modularization of the positioning ring 100 and facilitating its modular transportation and assembly. The modular second arc segments 110 are connected by reliable rigid methods (such as bolt connections, pin connections, welding, etc.) to ensure that the assembled positioning ring 100 forms a complete closed loop, ensuring that the modularly assembled positioning ring 100 possesses "overall structural integrity" and "geometric stability." In short, while achieving ease of assembly and disassembly, reliable connections ensure that the positioning ring 100 has a certain degree of rigidity and accuracy.

[0060] The positioning ring 100, which is necessary for positioning the vertical reinforcing bars 410, has through holes 111 directly formed on each independent second arc segment 110, and these holes are evenly distributed along the arc or according to the design. The machining of the through holes 111 can be completed with high precision on small, standard segments, making quality easier to control. When multiple second arc segments 110 are correctly connected, the through holes 111 on each second arc segment 110 naturally connect, forming a continuous and complete annular array of through holes, eliminating the need for secondary adjustments or machining after assembly.

[0061] Optionally, combined Figure 2As shown, the rebar cage positioning device applied to pier construction also includes a reinforcing structure 300, which has multiple connecting parts distributed in a ring at intervals. The multiple connecting parts are fixedly connected to different positions on the circumferential edge of the positioning ring 100.

[0062] Specifically, the reinforcing structure 300 has at least two connecting parts, and the multiple connecting parts are fixedly connected to different parts of the circumferential edge of the positioning ring 100.

[0063] In this optional embodiment, the reinforcing structure 300 itself is a component with a certain rigidity, and has multiple nodes (connecting parts) for connection in its circumferential direction. These nodes are arranged in a ring and spaced apart. The multiple connecting parts distributed in a ring can act as the "external constraint skeleton" of the positioning ring 100, and can simultaneously exert influence on the positioning ring 100 from multiple equally divided points in the circumferential direction.

[0064] The pressure of the flowing concrete on the internal reinforcing cage 400 is transmitted to the perforations 111 of the positioning ring 100 through the vertical reinforcing bars, which may cause radial compression deformation of the positioning ring. When the positioning ring 100 is subjected to uneven radial pressure from the internal concrete, these spaced-apart connections can collect the pressure from different positions of the positioning ring and transmit it to the reinforcing structure 300, which bears and redistributes the pressure as a whole. The connections are fixedly connected to the positioning ring to combine the two into a composite load-bearing whole. The reinforcing structure 300 acts like a "hoop" to restrict the radial expansion or contraction of the positioning ring 100 from the outside, greatly improving the radial deformation stiffness of the positioning ring 100.

[0065] During the pouring process, factors such as asymmetrical concrete pouring or vibration may cause the positioning ring 100 to be subjected to uneven vertical forces or torques, which may result in local warping or overall tilting. The reinforcing structure 300 is fixedly connected to different parts of the horizontally positioned positioning ring 100 through multiple connecting parts, providing out-of-plane support and torsional restraint for the positioning ring 100, ensuring that it always remains horizontal and flat.

[0066] Furthermore, the reinforcing structure 300, by spanning and connecting each of the second arc segments 110, acts as a "joining clamp," further ensuring the rigidity and continuity of the splice joint and preventing the joint from loosening under stress.

[0067] Optionally, combined Figure 2 As shown, the reinforcing structure 300 includes a plurality of connecting rods 310, which are arranged intersectingly to form an intersection point. The intersection point coincides with the center of the positioning ring 100, and each connecting rod 310 has two connecting portions.

[0068] Specifically, if the number of connecting rods 310 is two, the two connecting rods 310 can be vertically arranged; if the number of connecting rods 310 is three, the three connecting rods 310 are cross - arranged, and the included angles between adjacent connecting rods 310 can be equal; if the number of connecting rods 310 is four, the four cross - arranged connecting rods 310 can form a structure similar to a "rice" character shape.

[0069] Multiple connecting rods 310 form a cross - point at the intersection, and this cross - point coincides with the center of the positioning ring 100.

[0070] The cross - points of multiple connecting rods 310 can be fixedly connected by means of pins, bolt fasteners, welding, etc.

[0071] The connecting part (i.e., the end in the extending direction) of the connecting rod 310 and the positioning ring 100 can be fixedly connected by means of pins, bolt fasteners, welding, etc.

[0072] In this optional embodiment, multiple said connecting rods 310 are cross - arranged and form a cross - point that coincides with the center of the positioning ring 100, so that the multiple cross - arranged connecting rods 310 can form a "centrally symmetric radial support truss". Among them, the cross - point is located at the center of the circle, which means that the uneven radial forces transmitted from each point in the circumferential direction of the positioning ring 100 can be efficiently converged to the center point (cross - point or center of the circle) along the connecting rods 310. At the center point, the forces from all directions are balanced with each other, forming a natural "force balance center", which is more conducive to resisting asymmetric loads.

[0073] The multiple cross - arranged connecting rods 310 have extremely high geometric invariability and shear - resistance and deformation - resistance capabilities in the plane. It can most effectively "lock" the positioning ring 100 within its design plane and resist any tendency that causes the positioning ring 100 to "go out of round" or "become elliptical" deformation.

[0074] The coincidence of the cross - point and the center of the circle can, during installation, assist in quickly and accurately positioning the entire steel reinforcement cage 400 by ensuring that this cross - point is aligned with the theoretical center of the steel reinforcement cage 400.

[0075] Each connecting rod 310 is like a "strut". One end of it is connected to a certain point on the edge of the positioning ring 100, and the other end is indirectly connected to all other rods and the circumferential points of the positioning ring 100 through the central cross - point, which provides the shortest and most direct force - transmission path for each point on the positioning ring 100 to resist radial displacement.

[0076] Since the multiple connecting rods 310 are arranged in a cross pattern, each connection is actually constrained from two different directions. This means that every point on the circumferential edge of the positioning ring 100 is constrained from at least two directions, effectively preventing local warping or twisting of the positioning ring 100 in any direction. The fixing points of the connections are equivalent to adding stiffening ribs to the edge of the positioning ring 100, improving the ability of the edge of the positioning ring 100 (usually the weakest part) to resist local bending.

[0077] The present invention provides a method for using a rebar cage positioning device applied to pier construction, based on the rebar cage positioning device for pier construction described in the above embodiment, comprising the following steps: Initial positioning work was carried out on the S100 and the 400 steel cage of the pier column.

[0078] The initial positioning of the reinforcing cage 400 can be achieved through the following existing technologies. For example, the auxiliary component method can be used. Specifically, guide bars can be welded to the outside of the reinforcing cage 400 or concrete pads can be tied. The contact between the guide bars and the casing or the hole wall can be used to roughly control and protect the entire reinforcing cage 400 so as to achieve the initial positioning of the reinforcing cage 400.

[0079] A comprehensive adjustment method can also be used. Specifically, the verticality, horizontal position, and elevation of the hoisted steel cage 400 can be adjusted in three dimensions through adjustable hydraulic jacks, correction frames, and other mechanisms.

[0080] S200, at the same elevation position of the plurality of vertical reinforcing bars 410 of the steel cage 400, respectively mark the first installation position of the fastening component 200 and the second installation position of the positioning ring 100; wherein, the first installation position mark is lower than the second installation position mark.

[0081] The location markings can be made at the same elevation position of each vertical rebar 410 in the following manner: for example, a ring-shaped colored strip of a certain height can be sprayed at the position where the fastening component 200 needs to be installed on each vertical rebar 410 as the first installation location marking; or a ring-shaped colored strip of another color or a V-shaped notch can be made at the position where the positioning ring 100 needs to be installed on each vertical rebar 410 later as the second installation location marking.

[0082] S300. Based on the positions of the multiple vertical reinforcing bars 410, the positioning ring 100 is machined with multiple through holes 111 corresponding to the multiple vertical reinforcing bars 410.

[0083] In this process, lines can be drawn on the positioning ring 100 at positions corresponding to each vertical reinforcing bar 410, and then holes can be drilled to form through holes 111.

[0084] It should be noted that the order of steps S200 and S300 is not specifically limited; they can be performed simultaneously or sequentially.

[0085] S400. First, each of the fastening components 200 is respectively fitted onto the corresponding vertical steel bar 410. Then, the positioning ring 100 is placed above the multiple fastening components 200, and each of the vertical steel bars 410 is respectively passed through the corresponding through hole 111 of the positioning ring 100, so as to realize the repositioning operation of the steel cage 400.

[0086] The fastening component 200 is fitted onto the vertical reinforcing bar 410 at the corresponding position, which can be divided into the following steps, specifically, combined with Figure 7 As shown, a first rubber ring 230 and a collar structure 210 can be sequentially fitted at the first installation position mark of each vertical reinforcing bar 410; combined with Figure 8 As shown, an outer ring 220 is fitted onto the outside of the collar structure 210, and the outer ring 220 is tightened to fix the collar structure 210 and the first rubber ring 230 to the first installation position mark of the vertical steel bar 410; combined with Figure 9 As shown, a second rubber ring 240 is also fitted on the vertical steel bar 410, and the second rubber ring 240 is positioned above the collar structure 210.

[0087] After each of the fastening components 200 is fitted onto the corresponding vertical reinforcing bars 410, combined with Figure 10 As shown, multiple vertical steel bars 410 of the steel cage 400 are connected one by one to multiple through holes 111 of the positioning ring 100 to install the positioning ring 100 above multiple fastening components 200. Thus, the multiple vertical steel bars 410 of the steel cage 400 can be repositioned through the multiple through holes 111 of the positioning ring 100.

[0088] It should be noted that each section of the bridge is provided with at least one first pier 500 and a second pier 600, which support the left and right edges of the bottom of the bridge, respectively.

[0089] Both the first pier 500 and the second pier 600 have their respective steel cages 400 and positioning devices. The steel cages 400 of the first pier 500 can be positioned using the positioning devices through the steps S100 to S400 described above.

[0090] Then, using another positioning device, the above-mentioned steps S100 to S400 are used to perform the above-mentioned positioning operation on the steel cage 400 of the second pier column 600.

[0091] The intersection point (center) of the reinforcing structure 300 of the positioning device corresponding to the first pier 500 can be represented by the letter C1 (in conjunction with...). Figure 11 As shown), the intersection (center) of the reinforcing structure 300 of the positioning device corresponding to the second pier 600 can be represented by the letter C2 (in conjunction with...). Figure 12 (As shown).

[0092] After completing the two positioning operations for the steel cage 400 of the first pier 500 and the steel cage 400 of the second pier 600, a total station can be used to measure the position coordinates of the intersection point C1 of the first pier 500 and the intersection point C2 of the second pier 600. Based on the measurement results, an electric hoist can be used to make lateral fine adjustments to the installation positions of the steel cage 400 of the first pier 500 and the steel cage 400 of the second pier 600, so that the center point distance between the two steel cages 400 corresponding to the first pier 500 and the second pier 600 deviates from the design value by no more than 10mm, thereby achieving the precise positioning operation of the steel cages 400 of the two piers (which can be understood as the third positioning operation of the steel cages 400).

[0093] After the formwork is set around the steel cage 400, concrete can be poured into the interior of the steel cage 400 within the formwork and allowed to form and reach the required strength. At this point, depending on the site construction requirements, the entire steel cage positioning device can be moved from bottom to top and disassembled from the steel cage. Only then can the top end of the vertical steel reinforcement 410 of the steel cap beam and the pier column be connected, thereby completing the construction of the first pier column 500 and the second pier column 600.

[0094] The method of using the rebar cage positioning device for pier construction in this embodiment has the same beneficial effects as the above-described rebar cage positioning device for pier construction compared to the prior art, and will not be repeated here.

[0095] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A rebar cage positioning device for use in pier construction, the rebar cage comprising a plurality of vertical rebars arranged in a ring at intervals, characterized in that, The steel cage positioning device used in pier construction includes: A positioning ring (100) is provided with a plurality of through holes (111) arranged in a ring at intervals, and the plurality of through holes (111) are used for the plurality of vertical reinforcing bars (410) to pass through accordingly; Multiple fastening components (200) are provided, each of which is detachably sleeved on the corresponding vertical reinforcing bar (410). The fastening components (200) are located below the positioning ring (100) to support the positioning ring (100).

2. The rebar cage positioning device for pier construction according to claim 1, characterized in that, The fastening assembly (200) includes a collar structure (210) comprising at least two first arc segments (211) arranged in a ring and enclosing each other to form the collar structure (210) for fitting the vertical reinforcing bar (410); the collar structure (210) is located below the positioning ring (100).

3. The rebar cage positioning device for pier construction according to claim 2, characterized in that, The fastening assembly (200) further includes an outer ring (220) with a tapered internal thread (221), and the outer peripheral wall of each of the first arc segments (211) is provided with a tapered external thread (2110). The plurality of first arc segments (211) are distributed in a ring-shaped interval and surround each other to form the collar structure (210). The outer ring (220) is sleeved on the collar structure (210), and the tapered internal thread (221) of the outer ring (220) is threadedly connected to the tapered external thread (2110) of each of the first arc segments (211).

4. The rebar cage positioning device for pier construction according to claim 2, characterized in that, The fastening assembly (200) further includes a first rubber ring (230), which is used to be fitted onto the vertical reinforcing bar (410) and is located inside the collar structure (210).

5. The rebar cage positioning device for pier construction according to claim 2, characterized in that, The fastening assembly (200) also includes a second rubber ring (240), which is used to fit over the vertical reinforcing bar (410) and is located above the collar structure (210) and between the positioning ring (100).

6. The rebar cage positioning device for pier construction according to claim 2, characterized in that, The collar structure (210) includes two first arc segments (211), one end of one first arc segment (211) is rotatably connected to one end of the other first arc segment (211), and the other end of one first arc segment (211) is detachably connected to the other end of the other first arc segment (211).

7. The rebar cage positioning device for pier construction according to any one of claims 1 to 6, characterized in that, The positioning ring (100) includes a plurality of second arc segments (110), which are arranged in a ring and enclose each other to form the positioning ring (100), and are fixedly connected to each other between adjacent second arc segments (110); each second arc segment (110) is provided with a plurality of perforations (111) distributed along its arc.

8. The rebar cage positioning device for pier construction according to claim 7, characterized in that, It also includes a reinforcing structure (300) having a plurality of connecting parts distributed in a ring at intervals, the plurality of connecting parts being fixedly connected to different positions of the circumferential edge of the positioning ring (100).

9. The rebar cage positioning device for pier construction according to claim 8, characterized in that, The reinforcing structure (300) includes a plurality of connecting rods (310), which are arranged crosswise to form an intersection point. The intersection point coincides with the center of the positioning ring (100), and each connecting rod (310) has two connecting portions.

10. A method of using a rebar cage positioning device for pier construction, based on the rebar cage positioning device for pier construction as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The initial positioning of the steel reinforcement cage (400) of the pier column is carried out; At the same elevation position of multiple vertical reinforcing bars (410) in the steel cage (400), a first installation position mark for the fastening assembly (200) and a second installation position mark for the positioning ring (100) are respectively made; wherein, the first installation position mark is lower than the second installation position mark; Based on the positions of the multiple vertical reinforcing bars (410), the positioning ring (100) is machined with multiple through holes (111) corresponding to the multiple vertical reinforcing bars (410). First, each of the fastening components (200) is fitted onto the corresponding vertical steel bar (410). Then, the positioning ring (100) is placed above the fastening components (200), and each of the vertical steel bars (410) is passed through the corresponding hole (111) of the positioning ring (100) to achieve the repositioning operation of the steel cage (400).

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