Temporary suspender system bridge floor mounting structure

Abstract

The utility model relates to the technical field of bridge construction equipment, in particular to a temporary suspender system bridge floor mounting structure which comprises two first lifting assemblies, two second lifting assemblies and a connecting assembly, the two first lifting assemblies are distributed in the length direction of a main cable at intervals, and each first lifting assembly comprises a transmission part and a first lifting part; the transmission part comprises two temporary slings, the two temporary slings are distributed in the length direction perpendicular to the steel cross beam, one ends of the temporary slings are connected with the temporary cable saddle, the first lifting part comprises an exchange beam, and the other ends of the temporary slings are connected with the exchange beam; the second lifting assemblies are in one-to-one correspondence with the first lifting assemblies, each second lifting assembly comprises a tension piece and a first fixing piece, each tension piece comprises two first tension slings, one ends of the first tension slings penetrate through the exchange beam and are connected with the first fixing pieces, the other ends of the first tension slings are connected with the connecting assemblies, and the connecting assemblies are connected with the steel cross beam; the mounting structure has the advantages that stress uniformity is guaranteed, and mounting efficiency can be improved.

Description

Technical Field

[0001] This application relates to the field of bridge construction equipment technology, and in particular to a temporary suspender system bridge deck installation structure. Background Technology

[0002] In the construction of long-span bridges, temporary suspender systems serve as crucial auxiliary structures for ensuring bridge deck stability, and their technological advancements are of great significance for improving construction efficiency and safety. As bridge engineering develops towards larger spans and more complex structures, temporary support technology is also constantly evolving. In recent years, modular design concepts and the application of new materials have provided new ideas for optimizing temporary suspender systems, but existing technologies still face many challenges.

[0003] To install temporary suspender systems, several methods are typically employed: one is to fix the suspenders to the bridge deck using simple bolt connections, which is convenient but results in uneven stress distribution; another is to use jacks for tensioning, which allows for some stress adjustment but presents coordination issues when loading at multiple points; and yet another is to use a monolithic beam structure to distribute the load evenly, but such structures are usually large and inconvenient to transport and install. While these methods address the installation problems of temporary suspenders to some extent, they still have shortcomings.

[0004] Regarding the aforementioned technologies, existing methods generally suffer from problems such as uneven stress distribution, high installation complexity, or bulky structures. Especially when rapid installation and precise stress control are required, traditional methods are difficult to meet actual needs. Therefore, designing a temporary suspender system bridge deck installation structure that can both ensure uniform stress distribution and improve installation efficiency has become an urgent technical problem to be solved. Utility Model Content

[0005] To overcome the above problems, this application provides a temporary hanger system bridge deck mounting structure.

[0006] The temporary suspender system bridge deck installation structure provided in this application adopts the following technical solution:

[0007] A temporary suspender system bridge deck installation structure includes two first lifting assemblies, two second lifting assemblies, and a connecting assembly. The two first lifting assemblies are spaced apart along the length of the main cable. Each first lifting assembly includes a transmission component and a first lifting component. The transmission component includes two temporary slings. The two temporary slings are distributed along the length of the steel crossbeam, with one end of each temporary sling connected to a temporary saddle. The first lifting component includes an exchange beam, and the other end of each temporary sling is connected to the exchange beam.

[0008] The second lifting component corresponds one-to-one with the first lifting component. The second lifting component includes a tension member and a first fixing member. The tension member includes two first tension cables. Both first tension cables are located at the bottom of the exchange beam. The two first tension cables are distributed at intervals along the setting direction of the exchange beam. One end of the first tension cable passes through the exchange beam and is connected to the first fixing member, and the other end is connected to the connecting component. The connecting component is connected to the steel crossbeam.

[0009] By adopting the above technical solution, the temporary suspender system bridge deck installation structure can achieve an effective connection between the main cable and the bridge deck, ensuring the stability of the temporary suspender system during construction. Specific effects are as follows: Two first lifting components are spaced apart along the length of the main cable. Combined with the design of the transmission components and the first lifting components, this allows the temporary suspenders to be evenly distributed and bear tension, avoiding uneven stress. The exchange beam provides a reliable connection point for the temporary suspenders and, through its structural characteristics, transforms multi-point loads into uniformly distributed loads, reducing the risk of local stress concentration and facilitating the installation of the second lifting components. The synergistic effect of the tension component and the first fixing component further optimizes the load transmission path, ensuring the stability and reliability of the overall structure. The connection design between the temporary suspenders and the exchange beam not only improves the system's load-bearing capacity but also optimizes the force transmission path, making the stress distribution among components more balanced. Furthermore, the combined use of the first tension suspenders and the connecting components further enhances the overall system's resistance to deformation, achieving effective fixation of the temporary suspender system to the bridge deck. This significantly improves the overall performance and reliability of the temporary suspender system while ensuring ease of installation.

[0010] In one specific implementation, the exchange beam is a steel plate fixed box structure.

[0011] By adopting the above technical solution, this design enables the exchange beam to have high stiffness and stability, effectively withstand large bending and shear forces, thereby ensuring that the temporary suspension system is subjected to uniform stress and has structural stability during operation.

[0012] In one specific implementation, the exchange beam can also adopt a segmented splicing structure, which can be connected to the required length.

[0013] By adopting the above technical solution, the length can be flexibly adjusted according to actual needs, making it suitable for installation scenarios with different spans, significantly improving installation flexibility and transportation convenience. Although this design may slightly reduce overall rigidity, its advantages in installation adaptability and convenience are obvious, making it particularly suitable for temporary suspender system bridge deck installation structures that require rapid deployment and multi-scenario application.

[0014] In one specific implementation scheme, the first fixing member includes two first jacks, each corresponding to a first tension cable, the first jacks being connected to the top of the exchange beam, and the first jacks being connected to the first tension cables.

[0015] The connecting assembly includes a spreader beam, an original suspension rod tensioning fixture, and a second fixing component. The spreader beam is oriented in the same direction as the steel crossbeam and is connected to the steel crossbeam. The end of the first tension cable away from the exchange beam is connected to the spreader beam. The original suspension rod tensioning fixture passes through the spreader beam. The second fixing component includes two second tension cables and two second jacks. The distribution direction of the two second tension cables is the same as the distribution direction of the two tension components. The second tension cables are connected from the original suspension rod tensioning fixture to the spreader beam. One end of the second tension cable passes through the original suspension rod tensioning fixture and is connected to the corresponding second jack, while the other end is fixedly connected to the steel crossbeam.

[0016] By adopting the above technical solution, the first jack and the first tension cable are connected one-to-one to the top of the exchange beam, which enables independent tension control of the first tension cable, thereby ensuring uniform stress on each cable; the spreader beam is connected to the steel crossbeam and transmits the tension of the first tension cable to the spreader beam, further optimizing the stress distribution through the uniform load distribution function of the spreader beam; the original suspension rod tensioning fixture passes through the spreader beam and, together with the second tension cable and the second jack in the second fixing component, forms a graded loading system, which can effectively avoid local overload and improve the stress balance and stability of the overall system.

[0017] In one specific implementation scheme, the spreader beam is made of I-beams and has reinforcement structures at both ends to enhance overall rigidity.

[0018] By adopting the above technical solution, the system has high strength and rigidity, and can effectively bear and transmit loads. At the same time, the reinforcement structures at both ends further enhance the overall rigidity and prevent bending deformation during the stress process, thereby ensuring the stability and reliability of the system.

[0019] In one specific implementation, the reinforcing structure includes diagonal braces and reinforcing plates, each fixed to opposite ends of the spreader beam.

[0020] By adopting the above technical solution, the overall rigidity of the spreader beam can be significantly enhanced, effectively preventing bending deformation during the stress process; this design ensures that the spreader beam can uniformly transmit the load, avoid stress concentration, and thus improve the stability and load-bearing capacity of the entire temporary suspension system.

[0021] In one specific feasible implementation, a third jack is added to the bottom of the exchange beam.

[0022] By adopting the above technical solution, the addition of the third jack can achieve more precise load distribution control. Specifically, the third jack works in conjunction with the first and second jacks to form a three-level loading system, which further improves the uniformity of the system's stress. In addition, although this design increases the complexity of the system, it significantly improves the accuracy of load distribution and enhances the safety and reliability of the overall structure.

[0023] In one specific implementation, the exchange beam needs to be leveled.

[0024] By adopting the above technical solutions, the uniformity of stress on the bridge deck installation structure of the entire temporary suspender system can be ensured. Specifically, the leveling operation can effectively avoid local stress concentration caused by installation errors or uneven terrain, thereby improving the stability and reliability of the system. In addition, the leveled exchange beam helps to achieve a reasonable load distribution, further improving installation accuracy and construction efficiency.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The designed temporary suspender system bridge deck installation structure, through the synergistic action of the tension member and the first fixing member, further optimizes the load transfer path, ensuring the stability and reliability of the overall structure. The connection design between the temporary suspenders and the exchange beam not only improves the system's load-bearing capacity but also optimizes the force transmission path, resulting in a more balanced force distribution among the components. Furthermore, the combined use of the first tension suspender and the connecting components further enhances the entire system's resistance to deformation, achieving effective fixation of the temporary suspender system to the bridge deck. Thus, while ensuring ease of installation, it significantly improves the overall performance and reliability of the temporary suspender system.

[0027] 2. The designed temporary suspender system bridge deck installation structure gives the exchange beam high rigidity and stability, effectively withstanding large bending and shear forces, thus ensuring that the temporary suspender system is subjected to uniform stress and structural stability during operation.

[0028] 3. The designed temporary suspender system bridge deck installation structure connects the spreader beam to the steel crossbeam, transferring the tension of the first tension cable to the spreader beam. The uniform load distribution function of the spreader beam further optimizes the stress distribution. The original suspender tensioning fixture passes through the spreader beam and, together with the second tension cable and the second jack in the second fixing component, forms a graded loading system, which can effectively avoid local overload and improve the stress balance and stability of the overall system. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the bridge deck installation structure of the temporary suspender system according to an embodiment of this application.

[0030] Figure 2 This is a schematic diagram of the segmented splicing exchange beam in this embodiment.

[0031] Figure 3 This is a schematic diagram of the exchange beam and the third jack in this embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. First lifting assembly; 11. Transmission component; 111. Constraint; 112. Temporary sling; 12. First lifting component; 121. Exchange beam; 1211. Third jack; 2. Second lifting assembly; 21. Tensioning component; 211. First tension sling; 22. First fixing component; 221. First jack; 3. Connecting assembly; 31. Spreader beam; 311. Reinforcing structure; 3111. Diagonal brace; 3112. Reinforcing plate; 32. Original lifting rod tensioning fixture; 33. Second fixing component; 331. Second tension sling; 332. Second jack; 4. Steel crossbeam. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0034] This application discloses a temporary suspender system bridge deck installation structure.

[0035] Reference Figure 1 A temporary suspender system bridge deck installation structure includes two first lifting components 1, two second lifting components 2, and a connecting component 3. The second lifting components 2 are located on the first lifting components 1, and the connecting component 3 is connected to the second lifting components 2. The connecting component 3 is connected to the steel crossbeam 4, and the steel crossbeam 4 is connected to the bridge deck. The purpose is to allow the temporary cable to bear the bridge self-weight and vehicle load borne by the original main cable.

[0036] Reference Figure 1Two first lifting components 1 are spaced apart along the length of the main cable. The first lifting component 1 includes a transmission component 11 and a first lifting component 12. The transmission component 11 includes a restraint 111 and two temporary slings 112. The restraint 111 is located below the temporary saddle and is fixedly connected to the main cable. The restraint 111 is set horizontally and its setting direction is perpendicular to the length direction of the steel beam 4. The restraint 111 is fixedly connected to the reserved hole on the bridge deck by bolts and is fixedly connected to the temporary saddle. Its lower end is fixedly connected to the temporary sling 112 by reinforcing bolts. The two temporary slings 112 are spaced apart along the length of the restraint 111. The end of the temporary sling 112 away from the restraint 111 is connected to the first lifting component 12. The temporary sling 112 is made of high-strength precision-rolled threaded steel. Precision-rolled threaded steel has the characteristics of high strength and high toughness and can withstand large tensile forces. As an alternative, temporary sling 112 can also be made of steel strand bundles and fitted with clip-type anchors to adapt to different working conditions. The steel strand bundles are made of multiple strands of high-strength steel wires and have the advantages of good flexibility and light weight, but additional protective sleeves are required to prevent wear.

[0037] Reference Figure 1 and Figure 2 The first lifting component 12 includes an exchange beam 121, whose orientation is consistent with that of the restraint device 111. The exchange beam 121 is leveled using a spirit level to ensure force balance. The end of the temporary sling 112 away from the restraint device 111 passes through the exchange beam 121 and is fixed to the fastening device. The exchange beam 121 is a welded steel plate box-shaped structure. The box-shaped structure has high rigidity and stability, and can withstand large bending and shear forces. The steel plate is 16 mm thick, and the weld joints use bevel welds to ensure connection strength. As an alternative, the exchange beam 121 can also adopt a segmented splicing structure, which is bolted together to the required length, suitable for different span requirements. Although this design reduces the overall rigidity, it significantly improves installation flexibility and transportation convenience.

[0038] Reference Figure 1The second lifting component 2 corresponds one-to-one with the first lifting component 1. The second lifting component 2 includes a tension member 21 and a first fixing member 22. The tension member 21 includes two first tension cables 211, both located at the bottom of the exchange beam 121 and spaced apart along the setting direction of the exchange beam 121. One end of each first tension cable 211 passes through the exchange beam 121 and connects to the fixing member, while the other end connects to the connecting component 3. The first fixing member 22 includes two first jacks 221, which are connected to the first tension cable 211. The lifting cables 211 are one-to-one, and the first jack 221 is located on top of the exchange beam 121. The first jack 221 is fixedly connected to the exchange beam 121 by reinforcing bolts. In this embodiment, the first jack 221 is a through-type hydraulic jack with a stroke of 200 mm. The main body of the first jack 221 is made of high-quality carbon steel, which has good load-bearing capacity and reliability. The first jack 221 is equipped with a sealing ring and a dust cover inside to effectively prevent oil leakage and dust from entering. The first jack 221 is connected to the hydraulic pump station through hydraulic pipelines to realize pressurization operation.

[0039] Reference Figure 1 The connecting component 3 includes a spreader beam 31, a tensioning fixture 32 for the original suspension rod, and a second fixing component 33. The spreader beam 31 has the function of uniformly distributing loads. The end of the first tension cable 211 away from the exchange beam 121 is fixedly connected to the spreader beam 31 by a reinforcing nut. The first tension cable 211 of the two tension components 21 is close to one side of the spreader beam 31 to balance the force on the first tension cable 211, thereby ensuring that the first tension cable 211 is subjected to uniform force. The spreader beam 31 is made of I-beam steel, and both ends are equipped with reinforcement structures 311 to enhance the overall rigidity. The reinforcement structure 311 includes a diagonal brace 3111 and a reinforcing plate 3112. The diagonal brace 3111 is made of angle steel, and the reinforcing plate 3112 is made of steel plate. The two are fixedly welded to both ends of the spreader beam 31. This design can effectively prevent the spreader beam 31 from bending and deforming during the stress process. The spreader beam 31 is fixedly connected to the steel crossbeam 4.

[0040] Reference Figure 1 and Figure 3The original suspension rod tensioning fixture 32 passes through the spreader beam 31. The second fixing component 33 includes two second tension cables 331 and two second jacks 332. The distribution direction of the two second tension cables 331 is consistent with the distribution direction of the two tension components 21. The second tension cables 331 are set from the original suspension rod tensioning fixture 32 to the spreader beam 31. One end of the second tension cable 331 passes through the original suspension rod tensioning fixture 32 and is connected to the second jack 332. The other end is fixedly connected to the steel crossbeam 4. The second jacks 332 correspond one-to-one with the second tension cables 331, and the second jacks 332 are fixedly connected to the original suspension rod tensioning fixture 32 by reinforcing bolts. In this embodiment, the second jacks 332 are the same as the first jacks 221. This double jack design can realize staged loading, such as the first jack 221. After jack 221 applies 70% of the design load, jack 332 supplements the remaining 30% load, thus ensuring uniform stress distribution in the system. As an alternative, a third jack 1211 is added to the bottom of the exchange beam 121, forming a three-stage loading system. The newly added third jack 1211 also uses a through-type hydraulic jack, installed below the exchange beam 121 near the bridge deck. The third jack 1211 is synchronously connected to the first jack 221 and the second jack 332 via hydraulic lines, forming a three-stage loading control system. For example, this design allows the third jack 1211 to supplement the remaining 30% load after the first jack 221 applies 40% of the design load and the second jack 332 applies 30%, further improving stress uniformity. Although this increases system complexity, it significantly improves load distribution accuracy.

[0041] The implementation principle of a temporary suspender system bridge deck installation structure according to this application embodiment is as follows: When a temporary suspender system bridge deck installation structure is required, firstly, according to the actual situation, the temporary saddle is connected to the designated position of the main cable. Then, the restraint 111 and temporary suspender 112 in the first lifting assembly 1 are connected to the temporary saddle. Next, the exchange beam 121 is fixed to the temporary suspender 112. During this process, the exchange beam 121 is leveled. The second lifting component and the first lifting component 12 are installed in stages and connected to the steel crossbeam 4 through the connecting assembly 3, and then the next installation operation can be carried out. Rapid installation and precise force control are achieved through modular design and double-jack staged loading. The restraint 111 is fixed to the reserved hole position on the bridge deck with bolts to ensure the stable support of the entire system. The temporary suspender 112 is made of high-strength precision-rolled threaded steel or steel strand bundle, which can withstand large tensile forces. The double-jack staged loading method can achieve uniform force distribution on the system and avoid local overload. The combined use of the exchange beam 121 and the spreader beam 31 transforms multi-point loads into uniformly distributed loads, effectively reducing the risk of localized stress concentration. This design not only improves installation efficiency but also significantly enhances system safety and reusability.

[0042] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temporary suspension system bridge deck installation structure, characterized in that: It includes two first lifting components (1), two second lifting components (2), and a connecting component (3). The two first lifting components (1) are spaced apart along the length of the main cable. Each first lifting component (1) includes a transmission component (11) and a first lifting component (12). The transmission component (11) includes two temporary slings (112). The two temporary slings (112) are distributed along the length of the steel crossbeam (4). One end of each temporary sling (112) is connected to a temporary saddle. The first lifting component (12) includes an exchange beam (121). The other end of each temporary sling (112) is connected to the exchange beam (121). The second lifting component (2) corresponds one-to-one with the first lifting component (1). The second lifting component (2) includes a tension member (21) and a first fixing member (22). The tension member (21) includes two first tension cables (211). Both first tension cables (211) are located at the bottom of the exchange beam (121). The two first tension cables (211) are distributed at intervals along the setting direction of the exchange beam (121). One end of the first tension cable (211) passes through the exchange beam (121) and is connected to the first fixing member (22). The other end is connected to the connecting component (3). The connecting component (3) is connected to the steel crossbeam (4).

2. The temporary suspension system bridge deck installation structure according to claim 1, characterized in that: The exchange beam (121) is a steel plate fixed box structure.

3. The temporary suspension system bridge deck installation structure according to claim 1, characterized in that: The exchange beam (121) can also adopt a segmented splicing structure, which can be connected to the required length.

4. The temporary suspension system bridge deck installation structure according to claim 1, characterized in that: The first fixing member (22) includes two first jacks (221), each of which corresponds to the first tension cable (211). The first jacks (221) are connected to the top of the exchange beam (121), and the first jacks (221) are connected to the first tension cable (211). The connecting assembly (3) includes a spreader beam (31), a pre-tensioned rod tensioning device (32), and a second fixing member (33). The spreader beam (31) is oriented in the same direction as the steel crossbeam (4). The spreader beam (31) is connected to the steel crossbeam (4). The end of the first tension cable (211) away from the exchange beam (121) is connected to the spreader beam (31). The pre-tensioned rod tensioning device (32) passes through the spreader beam (31). The second fixing member (33) includes two second... The tension sling (331) and two second jacks (332) are provided. The distribution direction of the two second tension slings (331) is consistent with the distribution direction of the two tension members (21). The second tension sling (331) is set from the original rod tensioning fixture (32) to the spreader beam (31). One end of the second tension sling (331) is passed through the original rod tensioning fixture (32) and connected to the second jack (332). The other end is fixedly connected to the steel crossbeam (4).

5. The temporary suspension system bridge deck installation structure according to claim 4, characterized in that: The spreader beam (31) is made of I-beams and has reinforcement structures (311) at both ends to enhance the overall rigidity.

6. The temporary suspension system bridge deck installation structure according to claim 5, characterized in that: The reinforcement structure (311) includes a diagonal brace (3111) and a reinforcing plate (3112), each fixed to opposite ends of the spreader beam (31).

7. The temporary suspension system bridge deck installation structure according to claim 4, characterized in that: A third jack (1211) is added to the bottom of the exchange beam (121).

8. The temporary suspension system bridge deck installation structure according to claim 1, characterized in that: The exchange beam (121) needs to be leveled.

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