Construction method of general arch bridge cable-stayed buckle hanging system

Abstract

The application relates to a construction method of a general arch bridge cable-stayed buckling system, the arch bridge cable-stayed buckling system is designed to be general, the circulation use of the system is realized, all the components can be recycled except the anchor plate and the pre-buried buckle ground anchor, three components in the arch bridge cable-stayed buckling system are designed to be standardized, assembled and lightened, the construction efficiency and economic benefits are improved, the system is suitable for the cable-stayed buckling construction of most arch bridges, is favorable for promoting the standardized construction of the arch bridge cable-stayed buckling, is suitable for different buckle cable types and tensioning positions, and the effect of balancing the cable forces on the two sides of the buckle tower can be achieved, the method steps are simple, convenient to operate and good in effect.

Description

Technical Field

[0001] This invention relates to the field of construction technology for cable-stayed arch bridge systems, and in particular to a construction method for a universal cable-stayed arch bridge system. Background Technology

[0002] The cable-stayed arch bridge system mainly consists of the arch rib cable anchorage end, the cable saddle device, and the cable ground anchor tensioning anchorage end. Due to differences in arch rib structure, limitations in on-site construction conditions, and insufficient design considerations, the construction design phase is often highly targeted, frequently considering these three components separately. However, in actual construction, these three components are closely interconnected. Considering only one component while neglecting their systemic interoperability creates numerous difficulties for subsequent follow-up construction. Summary of the Invention

[0003] The purpose of this invention is to address the problems in existing technologies regarding the lack of a systematic approach to the arch rib cable anchorage, cable saddle device, and cable ground anchor tensioning anchorage in the construction of cable-stayed arch bridges, which result in difficulties in reuse, low standardization, and redundant components. This invention provides a construction method for a universal cable-stayed arch bridge system.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A construction method for a universal arch bridge cable-stayed suspension system includes the following steps:

[0006] S1. Adjust the distribution beam according to the arch rib segment size, weld anchor plates during arch rib processing, pour ground anchors, and pre-embed limit rods and pre-embedded anchors. At the same time, install the multi-purpose cable saddle for the tower.

[0007] S2. Before the arch rib is installed, the distribution beam and the first anchor head are installed on the anchor plate by means of pin connection, and transported to the installation site together with the arch rib segment.

[0008] S3. On-site cable cutting; if a through cable is selected, the anchoring end of the through cable is anchored to the second anchoring head, and then the through cable is passed around the guide part of the multi-purpose cable saddle and the tensioning end of the through cable is pulled to the ground anchor; if a front cable and a tail cable are selected, the anchoring end of the front cable is anchored to the second anchoring head, and then the tensioning end of the front cable is inserted into the second tensioning anchoring beam corresponding to the front cable on the multi-purpose cable saddle.

[0009] S4. After the arch rib is lifted into place, the second anchor head after construction is completed is lifted to the vicinity of the first anchor head of the arch rib segment by the working cable, and the first anchor head and the second anchor head are connected together by the connecting plate using the pin connection method.

[0010] S5. When using a continuous cable, tensioning is performed at the ground anchor. The adjusting cable is installed simultaneously with the continuous cable installation. First, an arc-shaped support is installed on the pre-embedded anchor, and the first tensioning anchor beam is installed and temporarily fixed. The tensioning end of the continuous cable passes through the first tensioning anchor beam, and the anchoring end of the adjusting cable is anchored to the multi-purpose cable saddle. When the front and rear cables are separated, the tail cable is installed simultaneously with the front cable installation. In this case, tower tensioning is adopted. First, an arc-shaped support is installed on the pre-embedded anchor, and the first tensioning anchor beam is installed and temporarily fixed. The anchoring end of the tail cable is anchored to the first tensioning anchor beam through the second anchor.

[0011] S6. When using a continuous cable, pull the tensioning end of the adjusting cable to the ground anchor and insert it into the first tension anchor beam; when the front and rear cables are separated, pull the tail cable one by one to the multi-purpose cable saddle and pull it to the second tension anchor beam corresponding to the tail cable, and then pull the front and rear cables back up simultaneously.

[0012] S7. When using a continuous cable, tension the continuous cable and the adjusting cable gradually. The continuous cable is tensioned based on the arch rib shape, and the adjusting cable ensures that the horizontal force generated by the continuous cable on both sides of the multi-purpose cable saddle is balanced. When the front and rear cables are separated, tension the front and rear cables gradually. The front cable is tensioned based on the arch rib shape, and the tail cable is tensioned based on balancing the horizontal force of the tower. The first tensioning anchor beam at the ground anchor can adaptively rotate as tensioning progresses to prevent the cable from bending.

[0013] The construction method of the universal arch bridge cable-stayed system described in this invention provides a universal design for the system, enabling its reuse. Except for the anchor plates and ground anchor pre-embedded parts, all other components are recyclable. The three components of the arch bridge cable-stayed system are standardized, prefabricated, and lightweight, improving construction efficiency and economic benefits. This system is applicable to most arch bridge cable-stayed construction projects, promoting standardized construction methods. It is suitable for different cable types and tensioning positions, achieving cable force balance on both sides of the cable-stayed tower. The method is simple, easy to operate, and yields good results.

[0014] As a preferred technical solution of the present invention, the ground anchor is provided with a reserved tensioning groove, the first tensioning anchor beam spans the reserved tensioning groove, and a limiting hole is provided on each of the two opposite side walls of the reserved tensioning groove (2). The limiting rod is L-shaped, one end of the limiting rod is hinged in the limiting hole, and the other end is connected to the first tensioning anchor beam. The first tensioning anchor beam rotates along the vertical plane.

[0015] As a further preferred technical solution of the present invention, the first tension anchor beam is provided with a sliding groove, and the arc-shaped support is slidably fitted in the sliding groove.

[0016] As a preferred technical solution of the present invention, the rotation plane of the distribution beam is a vertical plane, and the rotation plane of the first anchor head is perpendicular to the rotation plane of the distribution beam.

[0017] As a further preferred technical solution of the present invention, the rotation planes of the connecting plate and the second anchor head are both vertical planes.

[0018] As a preferred technical solution of the present invention, the multi-purpose cable saddle includes a cable saddle portion, the top of which is provided with an anchoring portion and two guide portions, the two guide portions being located at opposite ends of the cable saddle portion, and the anchoring portion being located between the two guide portions.

[0019] As a further preferred technical solution of the present invention, the guide part includes a plurality of fixed pulleys, which are arranged along a gradient line.

[0020] As a further preferred technical solution of the present invention, the through cable is fitted with two guide parts, one end of the through cable is anchored to the second anchor head, and the other end is connected to the first tension anchor beam. The through cable is tensioned and anchored on the first tension anchor beam.

[0021] As a further preferred technical solution of the present invention, the adjusting cable is fitted with a guide part, one end of the adjusting cable is anchored to the second tension anchor beam and the other end is connected to the first tension anchor beam, and the adjusting cable is tensioned and anchored on the first tension anchor beam.

[0022] As a further preferred technical solution of the present invention, the front cable and the tail cable are respectively matched with a guide part, one end of the front cable is anchored to the second anchor head, and the other end is anchored on the second tension anchor beam after tensioning, and one end of the tail cable is anchored to the first tension anchor beam, and the other end is anchored on the second tension anchor beam after tensioning.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] This invention discloses a construction method for a universal arch bridge cable-stayed system. The system features a standardized design, enabling its reuse. Except for the anchor plates and ground anchor pre-embedded parts, all other components are recyclable. The three components of the arch bridge cable-stayed system are standardized, modularized, and lightweight, improving construction efficiency and economic benefits. This system is applicable to most arch bridge cable-stayed construction projects, promoting standardized construction practices. It is suitable for different cable types and tensioning positions, achieving cable force balance on both sides of the cable-stayed tower. The method is simple, easy to operate, and yields good results. Attached Figure Description

[0025] Figure 1 A schematic diagram of the elevation structure of the arch side of a general arch bridge cable-stayed suspension system;

[0026] Figure 2 This is a schematic diagram of the planar structure of the arch side of a general arch bridge cable-stayed suspension system;

[0027] Figure 3This is a structural schematic diagram of the anchor plate;

[0028] Figure 4 This is a structural schematic diagram of the distribution beam;

[0029] Figure 5 This is a schematic diagram of the structure of the first anchor head;

[0030] Figure 6 This is a structural schematic diagram of the connecting plate;

[0031] Figure 7 This is a schematic diagram of the structure of the second anchor head;

[0032] Figure 8 This is a schematic diagram of the hoisting and pulling of the second anchor head;

[0033] Figure 9 This is a schematic diagram showing the connection between the second anchor head and the first anchor head.

[0034] Figure 10 This is a schematic diagram showing the cable before and after tensioning.

[0035] Figure 11 This is a plan view of the ground anchor side of a general arch bridge cable-stayed suspension system;

[0036] Figure 12 This is a schematic elevation view of the ground anchor side of the cable-stayed system for general arch bridges.

[0037] Figure 13 A front view structural diagram of a multi-purpose cable saddle for a general arch bridge cable-stayed suspension system;

[0038] Figure 14 A side view of the multi-purpose cable saddle for a general arch bridge cable-stayed system;

[0039] Figure 15 Elevation view of the cable arrangement for the multi-purpose cable saddle;

[0040] Figure 16 Elevation view of the arrangement of the through cable and adjusting cable for the multi-purpose saddle;

[0041] Figure 17 Elevation view of the front and tail cables for the multi-purpose cable saddle arrangement;

[0042] Figure 18 Plan view of the front and tail cables for a multi-purpose saddle.

[0043] Markings in the diagram: 100-Arch rib, 110-Anchor plate, 111-First ear plate, 112-Stirrup plate, 113-First through hole, 114-First stiffening plate, 120-Distribution beam, 121-Frame beam, 122-Third through hole, 123-Second ear plate, 124-Second stiffening plate, 125-Second through hole, 130-First pin, 131-Second pin, 132-Third pin, 133-Fourth pin, 140-First anchor head, 141-Third ear plate, 142-Fourth ear plate, 143-Fourth through hole, 144-Fifth through hole, 150-Connecting plate, 151-Fifth ear plate, 152-Tie bolt, 153-Sixth through hole, 154-Seventh through hole, 160 - Second anchor head, 161-Sixth ear plate, 162-Anchor plate, 163-Ninth through hole, 164-Third stiffening plate, 165-Eighth through hole, 166-Lifting point, 167-First anchor, 200-Locking cable, 201-Through cable, 202-Adjusting cable, 203-Front cable, 204-Tail cable, 300-Ground anchor, 301-Reserved tension groove, 302-Pre-embedded anchor, 303-Arc support, 304-Limiting hole, 310-First tension anchor beam, 311-Slide groove, 312-Limiting tie rod, 313-Second anchor, 400-Cable saddle, 410-Anchoring part, 411-Second tension anchor beam, 412-Third anchor, 420-Guide part, 421-Fixed pulley. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the accompanying drawings.

[0045] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0046] Example 1

[0047] like Figures 1 to 18 As shown, a construction method for a universal arch bridge cable-stayed suspension system according to the present invention includes the following steps:

[0048] S1. Adjust the distribution beam 120 according to the dimensions of the arch rib 100 segment. At the same time, weld the anchor plate 110 during the processing of the arch rib 100. The anchor plate 110 is connected to the top of the arch rib 100. Cast the ground anchor 300 according to the design drawings. Pre-embed the limiting tie rod 312 and the pre-embedded anchor 302 according to the requirements of the drawings. Prepare the remaining components. At the same time, install the multi-purpose cable saddle of the tower and prepare for the construction of the inclined cable fastening of the arch rib 100 segment.

[0049] like Figures 1 to 3As shown, the anchor plate 110 includes a first ear plate 111, which is welded to the outer wall of the arch rib 100. The first ear plate 111 is arranged along the length of the arch rib 100. Stirrup plates 112 are welded to both ends of the first ear plate 111, and the stirrup plates 112 are clamped and welded to the outer wall of the arch rib 100. A first through hole 113 is provided on the first ear plate 111 for setting a first pin 130. Several first stiffening plates 114 are welded to the side wall of the first ear plate 111. The first stiffening plates 114 are spaced apart along the length of the arch rib 100 and are welded to the outer wall of the arch rib 100. Further, as... Figure 2 As shown, the arch rib 100 has a pair of upper chord tubes, and an anchor plate 110 is connected to the same position of the upper chord tubes. Each anchor plate 110 includes a pair of first ear plates 111, and a first stiffening plate 114 is welded between the pair of first ear plates 111.

[0050] like Figure 1 , Figure 2 and Figure 4 As shown, the distribution beam 120 is arranged laterally, and the rotation plane of the distribution beam 120 is a vertical plane; specifically, the distribution beam 120 includes a frame beam body 121, on which a second ear plate 123 is welded and connected. The second ear plate 123 is provided with a second through hole 125, which cooperates with a first ear plate 111. The second through hole 125 matches the first through hole 113, and is used to set a first pin 130. The frame beam body 121 is provided with several third through holes 122, which are used to set the second pin 131. Several second stiffening plates 124 are welded and connected between the frame beam body 121 and the second ear plate 123; further, as Figure 4 As shown, the longitudinal section of the frame beam 121 is rectangular. The second through hole 125 is arranged laterally. The second through hole 125 and the third through hole 122 are arranged in a spatial cross. The third through hole 122 vertically passes through the top and bottom surfaces of the frame beam 121, as shown. Figure 2 As shown, a pair of second ear plates 123 are provided at both ends of the side of the frame beam 121. A second stiffening plate 124 is welded between the pair of second ear plates 123. The pair of second ear plates 123 can fit into the inner side of the corresponding first ear plate 111.

[0051] like Figure 11 and Figure 12 As shown, the ground anchor 300 is provided with a reserved tension groove 301 for at least one cable 200 to pass through. On the end face of the ground anchor 300 on both sides of the reserved tension groove 301, a sliding component is provided respectively, and a limiting component is provided on the two opposite side walls of the reserved tension groove 301.

[0052] Specifically, the sliding assembly includes a pre-embedded anchor 302, an arc-shaped support 303, and a sliding groove 311. The pre-embedded anchor 302 is embedded in the ground anchor 300 and includes a pre-embedded steel plate and a shear key. The pre-embedded steel plate is embedded in the surface of the ground anchor 300, and the shear key is embedded in the ground anchor 300. The arc-shaped support 303 is a steel support and is connected to the pre-embedded anchor 302. It can be pre-bolted or welded. The arc-shaped support 303 has a convex arc structure, thick in the middle and thin at both ends. Figure 11 As shown, a groove 311 is connected to each end of the side of the first tension anchor beam 310 along its length. The first tension anchor beam 310 is positioned to span the reserved tension groove 301, as shown. Figure 12 As shown, the length of the groove 311 is equal to the thickness of the first tension anchor beam 310. The arc-shaped support 303 is slidably fitted in the groove 311. The length of the arc-shaped support 303 is greater than the length of the groove 311. Through the cooperation of the groove 311 and the arc-shaped support 303, the groove 311 can rotate and slide along the length direction of the arc-shaped support 303 (i.e., the arc setting direction). However, in the width direction of the arc-shaped support 303 (i.e., the transverse direction of the groove 311), no displacement can occur due to the cooperation between the two. Therefore, the sliding path of the sliding component is arc-shaped. The first tension anchor beam 310 can rotate a certain angle relative to the ground anchor 300 under the cooperation of the groove 311 and the arc-shaped support 303. With this structure, by setting the arc-shaped support 303 and the groove 311, the arc-shaped support 303 matches the... In the groove 311, the first tension anchor beam 310 can only rotate along the arc direction of the arc support 303, and cannot be laterally misaligned, thus restricting the degree of freedom of the first tension anchor beam 310 and preventing lateral slippage of the first tension anchor beam 310, which could cause a safety accident. The first tension anchor beam 310 is bridged on both sides of the reserved tension groove 301. By setting two sliding components, both ends of the first tension anchor beam 310 are effectively connected to the ground anchor 300 through a sliding component, which improves the stability of the sliding connection between the first tension anchor beam 310 and the ground anchor 300. The first tension anchor beam 310 moves along the arc-shaped sliding path, that is, the first tension anchor beam 310 can rotate at an angle, quickly matching the angle set by the cable 200, and facilitating the adaptive adjustment of the first tension anchor beam 310.

[0053] Specifically, the limiting assembly includes a limiting rod 312 and a limiting hole 304. A limiting hole 304 is provided on each of the two opposite side walls of the pre-reserved tension groove 301. The limiting rod 312 is L-shaped, with an external thread fitted on one end of the rod and the other end extending into the limiting hole 304. Figure 11As shown, the first tension anchor beam 310 has a through hole, through which the threaded end of the limiting rod 312 passes. The limiting rod 312 is detachably connected to the first tension anchor beam 310 via a nut. The limiting rod 312 is rotatably connected to the ground anchor 300 through a limiting hole 304. The rotation direction of the limiting rod 312 is consistent with the arc surface setting direction of the arc surface support 303. Therefore, the limiting rod 312 holds the first tension anchor beam 310, limiting its maximum slippage position. With this structure, the limiting rod 312 is hinged to the ground anchor 300, and the rotation direction of the limiting rod 312 is consistent with the arc surface setting direction of the arc surface support 303. The arc surface of the arc support 303 is oriented in the same direction, which allows the limiting rod 312 to change angle with the rotation of the first tension anchor beam 310. The limiting rod 312 holds the first tension anchor beam 310 and the ground anchor 300, making the first tension anchor beam 310 and the ground anchor 300 relatively stable. By setting a limiting hole 304 on the ground anchor 300 to cooperate with one end of the L-shaped limiting rod 312, the limiting rod 312 and the ground anchor 300 are rotated together. Two limiting hole 304 positions are provided, that is, two limiting components can be provided, which improves the stability of the sliding connection between the first tension anchor beam 310 and the ground anchor 300.

[0054] Specifically, the cable 200 passes through the reserved tensioning groove 301 and the first tensioning anchor beam 310 in sequence, and is anchored to the first tensioning anchor beam 310 by the second anchor 313.

[0055] In one specific embodiment, the first tension anchor beam 310 rotates circumferentially, the arc surface of the arc support 303 is a circumferential surface, and the limiting hole 304 is located at the center of rotation. With this structure, by setting the arc support 303 and the limiting hole 304 to be concentric, the limiting rod 312 is set with a fixed radius, ensuring that the first tension anchor beam 310 always fits on the arc surface of the arc support 303 during rotation, and the first tension anchor beam 310 always exerts force on the ground anchor 300, ensuring that the tension anchor system works effectively.

[0056] like Figures 13 to 18 As shown, the multipurpose cable saddle includes a cable saddle portion 400, and the top of the cable saddle portion 400 is provided with an anchoring portion 410 and two guide portions 420.

[0057] like Figure 13 As shown, the two guide portions 420 are located at opposite ends of the cable saddle portion 400, and the anchor portion 410 is located between the two guide portions 420. Generally, the anchor portion 410 is located in the middle of the length direction of the cable saddle portion 400.

[0058] Each guide section 420 includes multiple fixed pulleys 421, and several rows of fixed pulleys 421 are arranged along the thickness direction of the cable saddle section 400, such as... Figure 14As shown, this embodiment has eight rows, each row being a set of fixed pulleys 421. Each set includes multiple fixed pulleys 421, and each set of fixed pulleys 421 is arranged along a gradient line from the anchoring part 410 side to the cable saddle part 400 end side, as shown. Figure 13 As shown, each group includes five fixed pulleys 421, and the fixed pulleys 421 near the anchoring part 410 are positioned higher than the fixed pulleys 421 near the end of the cable saddle part 400.

[0059] The anchoring part 410 can anchor the cable 200, the fixed pulley 421 can guide the cable 200, and the set of fixed pulleys 421 with gradient lines can set different guiding angles for the cable 200.

[0060] In one specific implementation, such as Figure 15 As shown, the buckle 200 includes a continuous cable 201, i.e., a full-length buckle 200. The continuous cable 201 is fitted with two guide sections 420 and rotates around the two guide sections 420. One end of the continuous cable 201 is connected to the arch rib segment, and the other end is connected to the ground anchor. The adjustment ranges of the setting angle of the continuous cable 201 by the two fixed pulleys 421 set along the gradient line are α and β, respectively, i.e., from the horizontal direction to the extension direction of the gradient line; as shown... Figure 14 and Figure 15 As shown, the anchoring part 410 is hollowed out at the part through which the cable 201 passes.

[0061] In one specific implementation, such as Figure 16 As shown, the buckle 200 includes an adjusting cable 202, which is fitted with a guide part 420. One end of the adjusting cable 202 is connected to the anchoring part 410 and the other end is connected to the ground anchor 300. The adjusting cable 202 is used to adjust the horizontal force balance generated by the through cables 201 on both sides of the buckle tower. The fixed pulley 421 group adjusts the setting angle of the adjusting cable 202 from the horizontal direction to the direction of the gradient line extension.

[0062] In one specific implementation, such as Figure 17 As shown, the cable 200 includes a front cable 203 and a tail cable 204, i.e., a disconnectable cable 200. The front cable 203 and the tail cable 204 are respectively connected to a guide part 420. One end of the front cable 203 is connected to the arch rib segment and the other end is connected to the anchoring part 410. One end of the tail cable 204 is connected to the anchoring part 410 and the other end is connected to the ground anchor. The adjustment range of the setting angle of the tail cable 204 by the fixed pulley group 421 is α, and the adjustment range of the setting angle of the front cable 203 by the fixed pulley group 421 is β, both of which are horizontal to the direction of the gradient line extension.

[0063] like Figures 13 to 17As shown, the anchoring part 410 includes a base connected to the top of the cable saddle part 400. The base is provided with a second tensioning anchor beam 411 at both ends facing the two guide parts 420. The second tensioning anchor beam 411 is provided with a tensioner, which can connect to and tension the cable 200. Then, the cable 200 is anchored to the second tensioning anchor beam 411 by a third anchor 412.

[0064] like Figure 18 As shown, eight front cables 203 and eight tail cables 204 are staggered along the thickness direction of the anchorage portion 410.

[0065] Before installing S2 and arch rib 100, the distribution beam 120 and the first anchor head 140 are installed on the anchor plate 110 by means of pin connection, and transported to the installation site together with the arch rib 100 segment.

[0066] like Figure 1 , Figure 2 and Figure 5 As shown, a plurality of first anchor heads 140 are connected to the distribution beam 120. The rotation plane of the distribution beam 120 and the rotation plane of the first anchor heads 140 are arranged perpendicular to each other. Specifically, the first anchor head 140 includes a third ear plate 141 and a fourth ear plate 142, which are welded together to form a frame structure. The third ear plate 141 is provided with a fourth through hole 143. The third ear plate 141 cooperates with the frame beam 121. 3. The third through hole 122 and the fourth through hole 143 are used to set the second pin 131. The fourth ear plate 142 is provided with a fifth through hole 144. The fifth through hole 144 and the fourth through hole 143 are arranged in a spatial cross. The fifth through hole 144 is used to set the third pin 132. Further, the third ear plate 141 and the fourth ear plate 142 are each a pair. The pair of third ear plates 141 are fitted to the outer side of the top and bottom surfaces of the frame beam 121. The fourth through hole 143 is an oval hole.

[0067] Specifically, the distribution beam 120 and the anchor plate 110 are hinged by the first pin 130 passing through the first through hole 113 and the second through hole 125, and the first anchor head 140 and the distribution beam 120 are hinged by the second pin 131 passing through the third through hole 122 and the fourth through hole 143. Figure 2 As shown, all the connection points of the first anchor head 140 and the distribution beam 120 are symmetrically arranged on the distribution beam 120 to ensure balanced force distribution.

[0068] S3. After the 200-meter-long cable is cut on site, the second anchor head 160 is first put on the anchoring end of the 200-meter-long cable, and then the P anchoring construction of each bundle of steel strands is completed and the connecting plate 150 is installed on the second anchor head 160.

[0069] If the 200 is a cable 201, the anchoring end of the cable 201 is anchored to the second anchoring head 160. Then the cable 201 is passed around the guide part 420 of the multi-purpose cable saddle and the tensioning end of the cable 201 is pulled to the ground anchor 300.

[0070] If the front cable 203 and the tail cable 204 are selected for the 200, the anchoring end of the front cable 203 is anchored to the second anchoring head 160, and then the tensioning end of the front cable 203 is inserted into the second tensioning anchoring beam 411 corresponding to the front cable 203 on the multi-purpose saddle, and the clamp is installed.

[0071] like Figure 1 , Figure 2 and Figure 6 As shown, the connecting plate 150 includes a pair of fifth ear plates 151, which are connected by a plurality of tie bolts 152. Each end of the fifth ear plate 151 has a sixth through hole 153 and a seventh through hole 154. The pair of fifth ear plates 151 mate with a fourth ear plate 142, and the sixth through hole 153 matches the fifth through hole 144. The sixth through hole 153 is used to house the third pin 132, and the seventh through hole 154 is used to house the fourth pin 133. Further, as... Figure 2 As shown, a pair of fifth ear plates 151 clamp a fourth ear plate 142, that is, a first anchor head 140 connects two connecting plates 150.

[0072] like Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the connecting plate 150 is rotatably connected to the second anchor head 160 via the fourth pin 133. The second anchor head 160 is used to connect the buckle 200, and the rotation plane of the second anchor head 160 is a vertical plane. Specifically, the second anchor head 160 includes a sixth ear plate 161, an anchor plate 162, and a lifting point 166. The sixth ear plate 161 is provided with an eighth through hole 165, which is matched with a pair of fifth ear plates 151. The eighth through hole 165 matches the seventh through hole 154. The eighth through hole 165 is used to set the fourth pin 133. The anchor plate 162 is vertically welded to the sixth ear plate 161. Several third stiffening plates 164 are welded between the anchor plate 162 and the sixth ear plate 161. Anchor plate 162 is provided with at least one ninth through hole 163. The lanyard 200 passes through the ninth through hole 163 and is anchored to the anchor plate 162 through the first anchor 167 (i.e., the aforementioned P anchor is the anchor plate 162 and the first anchor 167). The lifting point 166 is welded to the third stiffening plate 164 and the anchor plate 162. Further, the second anchor head 160 includes a pair of sixth ear plates 161 and a pair of fifth ear plates 151 clamping one sixth ear plate 161. That is, one second anchor head 160 is connected to two connecting plates 150. The eighth through hole 165 is an oval hole. The second anchor head 160 and the connecting plate 150 are hinged by the fourth pin 133 passing through the seventh through hole 154 and the eighth through hole 165.

[0073] S4, such as Figure 8 and Figure 9 As shown, after the arch rib 100 is lifted into place, the second anchor head 160, which has been completed, is hoisted to the vicinity of the first anchor head 140 of the arch rib 100 segment by the working cable, and the first anchor head 140 and the second anchor head 160 are connected together by the connecting plate 150 using a pin connection method.

[0074] Each first anchor head 140 is rotatably connected to the connecting plate 150 via a third pin 132. Specifically, the connecting plate 150 and the first anchor head 140 are hinged by the third pin 132 passing through the fifth through hole 144 and the sixth through hole 153. The rotation plane of the first anchor head 140 and the rotation plane of the connecting plate 150 are set perpendicular to each other, and the rotation plane of the connecting plate 150 is a vertical plane.

[0075] S5. When using the through cable 201, tensioning is performed at the ground anchor 300. At the same time as the through cable 201 is installed, the adjusting cable 202 is installed. First, the arc support 303 is installed on the pre-embedded anchor 302, the first tensioning anchor beam 310 is installed and temporarily fixed, the tensioning end of the through cable 201 is inserted into the first tensioning anchor beam 310 and the clamp is installed, and the anchoring end of the adjusting cable 202 is anchored to the second tensioning anchor beam 411 through the third anchor 412.

[0076] When the front and rear cables are separated, the tail cable 204 is installed at the same time as the front cable 203 is installed. At this time, the tower tensioning method is adopted. First, the arc support 303 is installed on the pre-embedded anchor 302, the first tensioning anchor beam 310 is installed and temporarily fixed, and at the same time, the P anchor compression work is carried out (that is, the anchoring end of the tail cable 204 is anchored to the first tensioning anchor beam 310 through the second anchor 313).

[0077] S6. When using the through cable 201, pull the tensioning end of the adjusting cable 202 to the ground anchor 300 and insert it into the first tensioning anchor beam 310 and attach the clamping plate.

[0078] When the front and rear cables separate, the tail cables 204 are pulled one by one to the multi-purpose cable saddle, and then guided to the second tension anchor beam 411 corresponding to the tail cable 204 by the fixed pulley 421. Subsequently, the front and rear cables are pulled up synchronously, and the tower deflection is strictly controlled during the process.

[0079] S7. When using the through cable 201, gradually tension the through cable 201 and the adjusting cable 202. The through cable 201 is tensioned with the arch rib 100 line as the reference. The adjusting cable 202 ensures that the horizontal force generated by the through cable 201 on both sides of the multi-purpose cable saddle is balanced. The first tensioning anchor beam 310 at the ground anchor 300 can rotate adaptively with tensioning to prevent the through cable 201 and the adjusting cable 202 from bending.

[0080] When the front and rear cables are separated, the front and rear cables are tensioned gradually. The front cable 203 is tensioned with the arch rib 100 as the reference, and the tail cable 204 is tensioned with the reference of balancing the horizontal force of the tower. The first tensioning anchor beam 310 at the ground anchor 300 can rotate adaptively as the tensioning proceeds to prevent the tail cable 204 from being bent.

[0081] like Figure 10 As shown, the tensioned cable 200 will lift the distribution beam 120, while the untensioned cable 200 will... Figure 9 As shown, the cable hangs down through the degree of freedom of the connecting plate 150 to prevent the cable 200 from bending.

[0082] S8. Construction proceeds in stages. After the 100-segment arch rib is completed and the cable is removed, all components except for the anchor plate 110 and the ground anchor 300 can be recycled.

[0083] This embodiment describes a construction method for a universal arch bridge cable-stayed system. The system features a standardized design, enabling its reuse. Except for the anchor plate 110 and the pre-embedded ground anchor 300, all other components are recyclable. The three components of the arch bridge cable-stayed system are standardized, modularized, and lightweight, improving construction efficiency and economic benefits. This system is applicable to most arch bridge cable-stayed construction projects, promoting standardized construction practices. It is suitable for different types of cable 200 and tensioning positions, achieving cable force balance on both sides of the cable tower. The method is simple, easy to operate, and yields good results.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method for a universal arch bridge cable-stayed suspension system, characterized in that, Includes the following steps: S1. Adjust the distribution beam (120) according to the segment size of the arch rib (100), and weld the anchor plate (110) during the processing of the arch rib (100), pour the ground anchor (300), and pre-embed the limiting tie rod (312) and the pre-embedded anchor (302). The ground anchor (300) is provided with a reserved tension groove (301), and at the same time, install the multi-purpose cable saddle of the tower. S2. Before the arch rib (100) is installed, the distribution beam (120) and the first anchor head (140) are installed on the anchor plate (110) by means of pin connection, and transported to the installation site together with the arch rib (100) segment. S3. On-site cable (200) cutting; if the cable (200) is a through cable (201), the anchoring end of the through cable (201) is anchored on the second anchoring head (160), and then the through cable (201) is passed around the guide part (420) of the multi-purpose cable saddle, and the tensioning end of the through cable (201) is pulled to the ground anchor (300); if the cable (200) is a front cable (203) and a tail cable (204), the anchoring end of the front cable (203) is anchored on the second anchoring head (160), and then the tensioning end of the front cable (203) is inserted into the second tensioning anchoring beam (411) corresponding to the front cable (203) on the multi-purpose cable saddle; S4. After the arch rib (100) is lifted into place, the second anchor head (160) after construction is completed is lifted to the vicinity of the first anchor head (140) of the arch rib (100) segment by the working cable, and the first anchor head (140) and the second anchor head (160) are connected together by the connecting plate (150) using the pin connection method. S5. When using the through cable (201), tensioning is performed at the ground anchor (300). At the same time as the through cable (201) is installed, the adjusting cable (202) is installed. First, the arc support (303) is installed on the pre-embedded anchor (302), and the first tensioning anchor beam (310) is installed and temporarily fixed. The tensioning end of the through cable (201) is inserted into the first tensioning anchor beam (310), and the anchoring end of the adjusting cable (202) is anchored to the multi-purpose cable saddle. The adjusting cable (202) is matched with a guide part (420). One end of the adjusting cable (202) is anchored to the second tensioning anchor beam (411), and the other end is connected to the first tensioning anchor beam (310). The adjusting cable (202) is tensioned and anchored on the first tensioning anchor beam (310). When the front and rear cables are separated, the front cable (203) is installed at the same time as the tail cable (204). At this time, the tower tensioning method is adopted. First, the arc support (303) is installed on the pre-embedded anchor (302), the first tensioning anchor beam (310) is installed and temporarily fixed, and the anchoring end of the tail cable (204) is anchored to the first tensioning anchor beam (310) through the second anchor (313). The front cable (203) and the tail cable (204) are respectively matched with a guide part (420). One end of the front cable (203) is anchored to the second anchor head (160), and the other end is anchored on the second tensioning anchor beam (411) after tensioning. One end of the tail cable (204) is anchored to the first tensioning anchor beam (310), and the other end is anchored on the second tensioning anchor beam (411) after tensioning. The first tension anchor beam (310) spans the reserved tension groove (301). A limiting hole (304) is provided on each of the two opposite side walls of the reserved tension groove (301). The limiting rod (312) is L-shaped. One end of the limiting rod (312) is hinged in the limiting hole (304), and the other end is connected to the first tension anchor beam (310). The first tension anchor beam (310) rotates along the vertical plane. A sliding groove (311) is provided on the first tension anchor beam (310). The arc support (303) is slidably fitted in the sliding groove (311). The first tension anchor beam (310) rotates along the circumference. The arc surface of the arc support (303) is a circumferential surface. The limiting hole (304) is located at the center of the rotation. S6. When using the through cable (201), pull the tensioning end of the adjusting cable (202) to the ground anchor (300) and insert it into the first tensioning anchor beam (310); When the front and rear cables are separated, the tail cable (204) is pulled one by one to the multipurpose cable saddle and pulled to the second tension anchor beam (411) corresponding to the tail cable (204). Then the front and rear cables are pulled up synchronously. S7. When using the through cable (201), gradually tension the through cable (201) and the adjusting cable (202). The through cable (201) is tensioned with reference to the shape of the arch rib (100). The adjusting cable (202) ensures that the horizontal forces generated by the through cable (201) on both sides of the multi-purpose cable saddle are balanced. When the front and rear cables are separated, the front and rear cables are tensioned gradually. The front cable (203) is tensioned based on the shape of the arch rib (100), and the tail cable (204) is tensioned based on the horizontal force of the tower. The first tensioning anchor beam (310) at the ground anchor (300) can rotate adaptively as the tensioning proceeds to prevent the cable (200) from being bent. S8. Construction proceeds step by step. After the arch rib (100) segment is completed and the cable is removed, all components except for the anchor plate (110) and the ground anchor (300) are recycled.

2. The construction method of the universal arch bridge cable-stayed suspension system according to claim 1, characterized in that, The rotation plane of the distribution beam (120) is a vertical plane, and the rotation plane of the first anchor head (140) is perpendicular to the rotation plane of the distribution beam (120).

3. The construction method of the universal arch bridge cable-stayed suspension system according to claim 2, characterized in that, The rotation planes of the connecting plate (150) and the second anchor head (160) are both vertical planes.

4. The construction method of the universal arch bridge cable-stayed suspension system according to any one of claims 1-3, characterized in that, The multipurpose cable saddle includes a cable saddle part (400), the top of which is provided with an anchoring part (410) and two guide parts (420). The two guide parts (420) are located at opposite ends of the cable saddle part (400), and the anchoring part (410) is located between the two guide parts (420).

5. The construction method of the universal arch bridge cable-stayed suspension system according to claim 4, characterized in that, The guide section (420) includes several fixed pulleys (421), which are arranged along a gradient line.

6. The construction method of the universal arch bridge cable-stayed suspension system according to claim 4, characterized in that, The through cable (201) is fitted to two guide parts (420). One end of the through cable (201) is anchored to the second anchor head (160), and the other end is connected to the first tension anchor beam (310). The through cable (201) is tensioned and anchored on the first tension anchor beam (310).

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