Connecting structure for replacing arch bridge suspender and arch bridge suspender equipment

Abstract

The invention discloses a connecting structure for replacing an arch bridge suspender and arch bridge suspender equipment, and belongs to the technical field of bridge construction equipment. The plug pin component is connected with the saddle in an inserted mode; the bolt component is a steel bolt; the bolt component comprises a saddle bolt; the pulling plate bolt penetrates through the pulling plate strip component and is matched with the top of the saddle bolt; wherein the sections of the steel bolt and the saddle bolt are of circular structures; the connecting structure disclosed by the invention is simple in structure, low in cost and high in installation degree, and meanwhile, the detection work after the connecting structure is installed is relatively simple, so that the safety of the whole connecting structure in the use process is ensured; furthermore, the sections of the steel bolt and the saddle bolt are of circular structures, so that when the suspenders at different positions are replaced and mounted, the perpendicularity between the pulling plate strip component and the main arch can be ensured only by rotating the position of the saddle bolt and adjusting the angle of the saddle bolt; the problem that the perpendicularity of a pulling plate strip component and a main arch cannot be guaranteed in existing suspender replacement equipment is solved.

Description

Technical Field

[0001] This invention belongs to the technical field of bridge construction machinery, and particularly relates to a connection structure and equipment for replacing arch bridge hangers. Background Technology

[0002] Currently, arch bridges are constrained by historical construction techniques and technical conditions, resulting in various defects in their main components, such as hangers. Therefore, hangers need to be replaced after a certain number of years of service. However, existing hanger replacement devices generally use cable structures, which contain numerous anchors when installed with the main arch. This not only makes the installation process cumbersome but also results in a large and space-consuming device. Furthermore, when installing hangers at different locations on the main arch, the angle of inclination between the hangers and the main arch varies, and existing saddle-type devices cannot easily and flexibly guarantee the perpendicularity of the cable during installation. For example, the clamp-type automatic leveling anchoring device for hanger replacement in steel-concrete composite arch bridges disclosed in patent CN106758882B also uses a cable form, which not only occupies a large space but also requires numerous anchors. This increases the difficulty of inspection and introduces additional safety hazards, reducing overall safety performance. Moreover, when installing the cable to the top of the main arch, it is difficult to ensure the perpendicularity of the cable to the main arch, making installation time-consuming and labor-intensive.

[0003] There is an urgent need to propose a connection structure and equipment for replacing arch bridge hangers in order to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a connection structure and equipment for replacing arch bridge suspenders, thereby solving the aforementioned problems. The connection structure for replacing arch bridge suspenders disclosed in this invention is not only simple in structure and low in cost, but also highly installable. Furthermore, its post-installation testing is relatively simple, ensuring the safety of the entire connection structure during use. Moreover, the steel pin and saddle pin have circular cross-sections. Thus, when replacing suspenders at different locations, during installation, simply rotating the saddle pin to adjust its angle ensures the perpendicularity of the tie plate component to the main arch, solving the problem in existing suspender replacement equipment that cannot guarantee the perpendicularity of the tie plate component to the main arch.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention discloses a connection structure for replacing the hanger of an arch bridge, comprising: The saddle is mounted on the main arch; A pin component is inserted into the saddle, and after insertion, the top of the tie plate component is connected to the main arch; The pin component is a steel pin. In use, the steel pin passes through the tie plate component and the saddle in sequence, and connects the tie plate component and the saddle to the main arch. The latch component includes: During installation, the saddle pin passes through the saddle, and the pull plate component is inserted into the saddle pin from bottom to top. A pull plate pin passes through the pull plate strip component and is adapted to the top of the saddle pin. After the saddle pin is adapted to the pull plate pin, it connects the pull plate strip component and the saddle to the main arch. The steel pin and the saddle pin have circular cross-sections.

[0006] Preferably, the steel pin has at least two locking holes I. After the steel pin passes through the pull plate member and the saddle in sequence, the pin is inserted into the locking holes I on both sides.

[0007] Preferred options also include: The pull plate passes through the slot, and at least two pull plate passing through slots are respectively opened on the saddle pin. When the pull plate strip component is installed, the pull plate strip component is inserted from below the pull plate passing through slot to above it. The saddle pin has at least two pull plate pin adapter slots, and the pull plate pin adapter slots are located at the top of the pull plate through the slot. During installation, the pull plate pin passes through the pull plate strip member and the bottom of the pull plate pin is adapted to the pull plate pin adapter slot.

[0008] Preferably, the pull plate pin has at least two locking holes II. After the pull plate pin passes through the pull plate strip component, the pin is inserted into the locking holes II on both sides.

[0009] Preferably, the cross-sectional shape of the pull plate pin is composed of two semicircles and a rectangle, wherein the two semicircles are located at the upper and lower ends of the rectangle, respectively.

[0010] Preferably, the saddle includes: roof; Side plates: Two side plates are fixedly installed on both sides of the top plate; Two end plates are fixedly installed between the two side plates; A pin hole tube, which is fixedly installed between two side plates; A pressure plate, which is fixedly installed at the bottom of the two end plates and the side plates.

[0011] Preferably, it also includes several stiffening plates, which are fixedly installed between the pin hole tube and the pressure plate.

[0012] Preferably, the pressure plate is an arc-shaped plate or a flat plate; When the pressure plate is an arc-shaped plate, the installation direction of the stiffening plate is parallel to that of the pin hole tube; When the pressure plate is a flat plate, the stiffening plate is installed perpendicular to the pin hole tube.

[0013] Preferably, it also includes a mounting plate, wherein there is at least one mounting plate. When there is only one mounting plate, it is installed on the side of the top of the pull plate member away from the saddle. When there is an even number of mounting plates, they are installed on both sides of the top of the pull plate member.

[0014] To achieve the above objectives, the present invention also provides the following solution: The present invention also discloses an arch bridge suspender equipment, including the connection structure for replacing arch bridge suspenders as described in the above solution. In use, the tie plate component is installed on the main arch using the connection structure for replacing arch bridge suspenders as described in the above solution, and the suspender is replaced.

[0015] Compared with existing technologies, the present invention has the following advantages and technical effects: The design of the connection structure for replacing arch bridge hangers disclosed in this invention is extremely simple, which not only significantly reduces manufacturing costs but also significantly improves the convenience and efficiency of installation. Furthermore, the inspection process after installation is relatively intuitive and easy to perform, thereby ensuring the continuous safety and reliability of the connection structure during service.

[0016] Furthermore, this invention ingeniously employs a circular cross-section steel pin and saddle pin design. This unique design allows for easy and precise vertical alignment of the tie rod components with the main arch structure simply by rotating the saddle pin to adjust its position when replacing hangers in different locations. This innovative solution effectively overcomes the technical challenge of ensuring the perpendicularity of the tie rod components to the main arch, a common problem in existing hanger replacement equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the connection structure in Example 1; Figure 2 for Figure 1 A magnified view of part A in the image; Figure 3 for Figure 1 Side view; Figure 4 for Figure 3 A magnified view of part B in the image; Figure 5 The three views are of the steel pin; Figure 6 This is a schematic diagram of the connection structure in Example 2; Figure 7 for Figure 6 Side view; Figure 8 for Figure 7 A magnified view of part C; Figure 9 Three-view diagram of the saddle pin; Figure 10 Three views of the pull plate latch; Figure 11 Here are three views of a saddle structure; Figure 12 Here are three views of another saddle structure; Figure 13 This is a schematic diagram of the connection structure disclosed in Example 1 applied to the tie rod longitudinal beam load-bearing arch bridge hanger equipment; Figure 14 This is a schematic diagram of the connection structure disclosed in Example 2 applied to the suspension rod equipment of a beam-bearing arch bridge; Among them, 1. Main arch; 2. Tie plate component; 3. Saddle; 31. Top plate; 32. Side plate; 33. End plate; 34. Bearing plate; 35. Stiffening plate; 36. Pin hole pipe; 4. Pin component; 41. Steel pin; 411. Locking hole I; 42. Mounting plate; 43. Saddle pin; 431. Tie plate through groove; 432. Tie plate pin fitting groove; 44. Tie plate pin; 45. Locking hole II; 46. Pin; 5. Hanger rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1 like Figures 1-5 , Figure 11 and Figure 13As shown, this invention discloses a connection structure for replacing the hanger 5 of an arch bridge, comprising: Saddle 3, which is mounted on the main arch 1; The pin component 4 is inserted into the saddle 3, and after insertion, it connects the top of the tie plate component 2 to the main arch 1; The pin component 4 is a steel pin 41. In use, the steel pin 41 passes through the tie plate component 2 and the saddle 3 in sequence, and connects the tie plate component 2 and the saddle 3 to the main arch 1; wherein the cross-section of the steel pin 41 is a circular structure.

[0021] Specifically, such as Figures 1-4 and Figure 13 As shown, when it is necessary to replace the tie rod 5 of the load-bearing arch bridge, the tie plate member 2 is placed close to both sides of the saddle 3. The steel pin 41 is inserted through the tie plate member 2 and the saddle 3 from either side. After the pin is fully inserted through the tie plate member 2 and the saddle 3, the top of the tie plate member 2 is fixedly installed on the main arch 1. This connection structure is simpler to install and disassemble than the saddle 3 installation structure of the cable structure, and it is also more convenient to inspect, thus improving the overall structural safety.

[0022] In a further optimized design, the steel pin 41 is provided with at least two locking holes I 411. After the steel pin 41 passes through the pull plate member 2 and the saddle 3 in sequence, the pin 46 is inserted into the locking holes I 411 on both sides.

[0023] Specifically, such as Figure 5 As shown, in order to further ensure the stability of the tie plate component 2 of the above scheme, a locking hole I 411 is opened on both sides of the steel pin 41. When the installation position of the steel pin 41 is fixed, the pin 46 is inserted into the locking hole I 411 on both sides to further fix it, so as to ensure the stability and firmness of the entire connection structure after installation.

[0024] In a further optimized design, the saddle 3 includes: Top plate 31; Side plates 32 are fixedly installed on both sides of the top plate 31; End plate 33, two end plates 33 are fixedly installed between the two side plates 32 respectively; A pin hole tube 36 is fixedly installed between two side plates 32. Pressure plate 34, which is fixedly installed at the bottom of the two end plates 33 and the side plate 32.

[0025] Furthermore, it also includes several stiffening plates 35, which are fixedly installed between the pin hole tube 36 and the pressure plate 34.

[0026] Specifically, such as Figure 11 As shown, in order to ensure the stability of the entire connection structure and thus improve safety, the saddle 3 structure is set as above, which consists of a top plate 31, a side plate 32, an end plate 33, a pin hole tube 36 and a pressure plate 34. Such a structure is easy to produce and has low cost. The existing saddle 3 structure is bulky and not conducive to installation during construction.

[0027] Furthermore, the pressure plate 34 is an arc-shaped plate; When the pressure plate 34 is an arc-shaped plate, the installation direction of the stiffening plate 35 is parallel to that of the pin hole tube 36.

[0028] Specifically, such as Figure 11 As shown, in order to effectively improve the load-bearing capacity of the steel pin 41, multiple stiffening plates 35 are cleverly arranged between the pin hole tube 36 and the pressure plate 34. The core of this design strategy is to achieve uniform pressure distribution by distributing the load-bearing pressure to the contact points of each stiffening plate 35.

[0029] From a technical perspective, the introduction of stiffening plate 35 not only significantly enhances the overall rigidity of the connection structure but also effectively alleviates localized stress concentration on the bearing plate 34. This distributed pressure-bearing method not only ensures the safety and stability of the connection structure under large loads but also further extends its service life by reducing the risk of stress concentration and fatigue damage.

[0030] A further optimization scheme also includes a mounting plate 42, wherein there is at least one mounting plate 42. When there is only one mounting plate 42, it is installed on the side of the top of the pull plate member 2 away from the saddle 3. When there is an even number of mounting plates 42, they are installed on both sides of the top of the pull plate member.

[0031] Specifically, such as Figure 2 As shown, in order to ensure that the top of the tie plate structure can be firmly installed, mounting plates 42 are installed on the outside or both sides of the tie plate structure.

[0032] Example 2 like Figures 6-11 and Figure 13 As shown, a connection structure for replacing the hanger 5 of an arch bridge includes: Saddle 3, which is mounted on the main arch 1; The pin component 4 is inserted into the saddle 3, and after insertion, it connects the top of the tie plate component 2 to the main arch 1; The latch component 4 includes: During installation, the saddle pin 43 passes through the saddle 3, and the pull plate member 2 is inserted into the saddle pin 43 from bottom to top. Pull plate pin 44, the pull plate pin 44 passes through the pull plate strip member 2 and is adapted to the top of the saddle pin 43. After the saddle pin 43 is adapted to the pull plate pin 44, the pull plate strip member 2 and the saddle 3 are connected to the main arch 1. The saddle pin 43 has a circular cross-section.

[0033] Further optimizations to the plan include: The pull plate passes through the slot 431. At least two pull plate passing slots 431 are respectively provided on the saddle pin 43. When the pull plate strip component 2 is installed, the pull plate strip component 2 is inserted from below the pull plate passing slot 431 to above it. Pull plate pin adapter groove 432, the saddle pin 43 has at least two pull plate pin adapter grooves 432, and the pull plate pin adapter groove 432 is located at the top of the pull plate through groove 431. During installation, the pull plate pin 44 passes through the pull plate strip member 2 and the bottom of the pull plate pin 44 is adapted to the pull plate pin adapter groove 432.

[0034] Specifically, such as Figures 6-11 and Figure 13 As shown, when it is necessary to replace the suspender 5 of the crossbeam-bearing arch bridge, as follows: Figure 6 , Figure 8 and Figure 9 As shown, first, the saddle 3 is placed on the main arch 1, then the saddle pin 43 is inserted into the pin hole tube 36, and then the pull plate strip members 2 on both sides are inserted from the bottom to the top through the pull plate through groove 431. Then, the pull plate pin 44 is inserted through the pull plate strip member 2, and during the fitting process, the bottom of the pull plate pin 44 is fitted into the pull plate pin fitting groove 432. When replacing the suspenders 5 of the crossbeam-bearing arch bridge, the technical solution disclosed in this application is not only convenient for installation and disassembly, but also saves time and ensures safety during installation inspection. At the same time, the cooperation between the saddle pin 43 and the tie plate pin 44 can ensure the stability of the connection between the tie plate member 2 and the main arch 1 after connection. Furthermore, since the cross-section of the saddle pin 43 is circular, when replacing suspenders 5 at different positions, during installation, simply rotating the position of the saddle pin 43 to adjust its angle can ensure that the tie plate member 2 is perpendicular to the main arch 1, solving the problem that the existing suspender 5 replacement equipment cannot guarantee the perpendicularity of the tie plate member 2 to the main arch 1.

[0035] Furthermore, the pull plate pin 44 is provided with at least two locking holes II 45. After the pull plate pin 44 passes through the pull plate strip member 2, the pin 46 is inserted into the locking holes II 45 on both sides of it.

[0036] Specifically, such as Figure 10 As shown, in order to further ensure the stability of the pull plate component 2, a locking hole II 45 is opened on both sides of the pull plate pin 44. When the installation position of the pull plate pin 44 is fixed, the pins 46 are inserted into the locking holes II 45 on both sides to further fix it.

[0037] Furthermore, the cross-sectional shape of the pull plate pin 44 is composed of two semicircles and a rectangle, with the two semicircles located at the upper and lower ends of the rectangle, respectively.

[0038] Specifically, such as Figure 9 and Figure 10 As shown, compared to a circular design, the structure composed of two semi-circular holes and a rectangle exhibits superior vertical shear resistance. This combined structure, through its unique design, effectively disperses shear stress and enhances the overall stability of the structure. Specifically, the combination of semi-circles and a rectangle not only optimizes stress distribution but also reduces the possibility of stress concentration, thereby improving shear resistance.

[0039] In contrast, if a circle is used, the central area occupies a larger proportion of the same area. This characteristic makes the structure more susceptible to shear stress in the central region, thus weakening its overall shear resistance. The circular design may also cause stress concentration at the edges of the holes, increasing the risk of structural damage, especially under high shear loads, where its insufficient shear resistance will be more pronounced. Therefore, from the perspective of improving vertical shear resistance, a structure composed of two semicircles and a rectangle is a more reasonable choice. This design not only optimizes stress distribution but also enhances the stability and durability of the structure, providing strong technical support for engineering practice.

[0040] Example 3 like Figure 12 As shown, the only difference from Embodiment 1 is that the pressure plate 34 is a flat plate; in order to adapt to the rectangular main arch 1, the pressure plate 34 is set as a flat plate so that it can fit completely against the top of the main arch 1 during installation.

[0041] In a further optimized design, the pressure plate 34 is a flat plate; When the pressure plate 34 is a flat plate, the stiffening plate 35 is installed perpendicular to the pin hole tube 36.

[0042] Specifically, such as Figure 12 As shown in the test diagram, the pressure-bearing characteristics of the saddle pin 43 after installation can be clearly observed. After the pin 46 is installed, the pressure it bears is mainly concentrated at the contact point between the pin hole tube 36 and the pressure plate 34, which leads to a high concentration of stress on the pressure plate 34. To improve this situation, a stiffening plate 35 installed perpendicular to the pressure plate 34 is adopted.

[0043] The design principle of this stiffening plate 35 is that it can effectively disperse and transfer some of the bearing pressure originally concentrated on the bearing plate 34 to each stiffening plate 35. In this way, not only is the stress distribution of the entire connection structure significantly optimized and the safety of the structure improved, but the overall strength of the connection structure is also enhanced, thereby extending its service life.

[0044] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A connection structure for replacing the hangers of an arch bridge, characterized in that: include: Saddle (3), which is mounted on the main arch (1); The pin component (4) is inserted into the saddle (3), and after insertion, the top of the tie plate component (2) is connected to the main arch (1); The pin component (4) is a steel pin (41). In use, the steel pin (41) passes through the tie plate component (2) and the saddle (3) in sequence, and connects the tie plate component (2) and the saddle (3) to the main arch (1). The latch component (4) includes: When installing the saddle pin (43), the saddle pin (43) passes through the saddle (3), and the pull plate member (2) is inserted into the saddle pin (43) from bottom to top; Pull plate pin (44), the pull plate pin (44) passes through the pull plate strip member (2) and is adapted to the top of the saddle pin (43). After the saddle pin (43) is adapted to the pull plate pin (44), the pull plate strip member (2) and the saddle (3) are connected to the main arch (1). The steel pin (41) and the saddle pin (43) have circular cross-sections.

2. The connection structure for replacing arch bridge hangers according to claim 1, characterized in that: The steel pin (41) has at least two locking holes I (411). After the steel pin (41) passes through the pull plate member (2) and the saddle (3) in sequence, the pin (46) is inserted into the locking holes I (411) on both sides.

3. The connection structure for replacing arch bridge hangers according to claim 1, characterized in that: Also includes: The pull plate passes through the slot (431). At least two pull plate passing through slots (431) are respectively provided on the saddle pin (43). When the pull plate strip member (2) is installed, the pull plate strip member (2) is inserted from below the pull plate passing through slot (431) to above it. Pull plate pin adapter groove (432), the saddle pin (43) is provided with at least two pull plate pin adapter grooves (432), and the pull plate pin adapter groove (432) is located at the top of the pull plate through groove (431). During installation, the pull plate pin (44) passes through the pull plate strip member (2) and the bottom of the pull plate pin (44) is adapted to the pull plate pin adapter groove (432).

4. The connection structure for replacing arch bridge hangers according to claim 3, characterized in that: The pull plate pin (44) has at least two locking holes II (45). After the pull plate pin (44) passes through the pull plate strip member (2), the pin (46) is inserted into the locking holes II (45) on both sides.

5. The connection structure for replacing arch bridge hangers according to claim 3, characterized in that: The cross-sectional shape of the pull plate pin (44) is composed of two semicircles and a rectangle, wherein the two semicircles are located at the upper and lower ends of the rectangle respectively.

6. The connection structure for replacing arch bridge hangers according to claim 1, characterized in that: The saddle (3) includes: Top plate (31); Side plates (32), two side plates (32) are fixedly installed on both sides of the top plate (31); End plate (33), two end plates (33) are fixedly installed between the two side plates (32); A pin hole tube (36) is fixedly installed between two side plates (32); A pressure plate (34) is fixedly installed at the bottom of the two end plates (33) and the side plates (32).

7. The connection structure for replacing arch bridge hangers according to claim 6, characterized in that: It also includes several stiffening plates (35), which are fixedly installed between the pin hole tube (36) and the pressure plate (34).

8. The connection structure for replacing the suspenders of an arch bridge according to claim 7, characterized in that: The pressure plate (34) is an arc-shaped plate or a flat plate; When the bearing plate (34) is an arc-shaped plate, the installation direction of the stiffening plate (35) is parallel to that of the pin hole tube (36); When the pressure plate (34) is a flat plate, the stiffening plate (35) is installed perpendicular to the pin hole tube (36).

9. The connection structure for replacing the suspenders of an arch bridge according to claim 1, characterized in that: It also includes mounting plates (42), which are at least one piece. When the number of mounting plates (42) is one piece, it is installed on the side of the top of the pull plate member (2) away from the saddle (3); when the number of mounting plates (42) is even, they are installed on both sides of the top of the pull plate member respectively.

10. A type of arch bridge suspension system, characterized in that: The system includes the connection structure for replacing the suspenders of the arch bridge as described in claim 1. When in use, the tie plate member (2) is installed on the main arch (1) using the connection structure for replacing the suspenders of the arch bridge as described in claim 1, and the suspender (5) is replaced.

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