Continuous beam prepressing bracket
By designing a continuous beam preloading bracket during continuous beam construction, and using the frame and guardrails to form a enclosure structure, the safety hazards caused by sandbag deformation were solved, and the stable stacking of sandbags and construction safety were improved.
Patent Information
- Application Number
- CN202422803536.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In the construction of continuous beams, when sandbags are used as prestressing materials, the sandbags are prone to deformation, which can lead to instability in the stacked structure and pose a safety hazard.
Design a continuous beam preloading bracket, including a frame, guardrails, a first connector and a second connector, which form a enclosure structure to ensure the stable stacking of sandbags.
It effectively prevents sandbags from falling off the bracket, improves construction safety, and enhances the stability and load-bearing capacity of the bracket.
Smart Images
Figure CN223497019U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of continuous beam construction technology, and more specifically, it relates to a continuous beam preloading bracket. Background Technology
[0002] With the rapid development of high-speed railways and highways, the number of continuous beam bridges spanning highways, railways, and rivers is gradually increasing. During the construction of continuous beams, brackets are fixedly installed on the pier body, and the bearing capacity of these brackets is crucial. Therefore, after the brackets are installed, they must be pre-stressed to improve their load-bearing capacity and stability, while simultaneously eliminating inelastic deformation. This allows for the acquisition of elastic and inelastic deformation data, providing a basis for setting the pre-camber of the box girder bottom formwork.
[0003] Preloading materials typically include sandbags, steel (such as I-beams and channel steel), or concrete blocks. Sandbags are a commonly used preloading material because their weight is easy to control and they are convenient to handle and stack. However, when using sandbags for preloading, their relatively soft material makes them prone to deformation during stacking, which may lead to instability in the stacked structure and cause the sandbags to fall off the support, posing a certain safety hazard. Utility Model Content
[0004] The purpose of this utility model is to provide a continuous beam preloading bracket, which is designed to protect the preloading sandbags stacked on the bracket.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a continuous beam preloading bracket, comprising:
[0006] The frame is fixedly mounted on the pier.
[0007] Multiple guardrails are installed on the frame and arranged sequentially along the edge of the frame, forming a fence structure when the multiple guardrails are together;
[0008] A first connector, connected between the frame and the guardrail, is used to fix the frame and the guardrail together; and
[0009] The second connector is connected between two adjacent guardrails and is used to fix the two adjacent guardrails.
[0010] In one possible implementation, the first connector includes:
[0011] The frame connecting part is fitted onto the frame;
[0012] The clamping screw is threadedly connected to the frame connection part;
[0013] A clamping plate is rotatably mounted at one end of the clamping screw near the frame.
[0014] The clamping plate abuts against the frame to fix the position of the frame connecting part on the frame.
[0015] In one possible implementation, the first connector further includes:
[0016] The guardrail connecting part is rotatably mounted on the frame connecting part; the guardrail connecting part is provided with a threaded hole, and the surface of the guardrail near the guardrail connecting part is threaded so that the guardrail and the frame connecting part are threadedly connected.
[0017] In one possible implementation, the second connector includes:
[0018] The sleeve is fitted onto two adjacent guardrails at both ends;
[0019] Two locking blocks are slidably disposed at both ends of the sleeve and correspond one-to-one with two adjacent guardrails. The locking blocks slide radially along the sleeve.
[0020] Two first elastic elements are disposed between the sleeve and the locking block, and correspond one-to-one with the two locking blocks, for pushing the locking blocks to extend from the outer side of the sleeve;
[0021] Two locking components are disposed on the sleeve and correspond one-to-one with the two locking blocks, for pushing the locking blocks to extend from the inner side of the sleeve;
[0022] When the guardrail is inserted into the sleeve along the axial direction of the sleeve, the locking block can extend from the inner side of the sleeve and be inserted into the guardrail to fix the guardrail and the sleeve together.
[0023] In one possible implementation, the locking component includes:
[0024] A slip ring is fitted onto the outer surface of the sleeve;
[0025] A second elastic element is disposed between the slip ring and the sleeve, for pushing the slip ring to move closer to the locking block;
[0026] When the second elastic element is in its original length state, the inner side of the slip ring abuts against the locking block, so that the locking block retracts into the inside of the sleeve.
[0027] In one possible implementation, two hanging plates are rotatably mounted on the sleeve, each of the two hanging plates corresponding to one of the two slip rings. Each of the two hanging plates has a first notch, and a connecting post is fixedly mounted on each of the two slip rings.
[0028] When the connecting post is engaged with the first notch, the slip ring disengages from the locking block, allowing the locking block to extend out of the sleeve.
[0029] In one possible implementation, a second notch is provided on both of the mounting plates;
[0030] When the connecting post is engaged with the second notch, the slip ring abuts against the locking block.
[0031] In one possible implementation, a plug is fixedly provided on the sleeve along the axial direction, and a slot suitable for insertion into the plug is provided on the guardrail.
[0032] In one possible implementation, an anti-slip pad is fixedly provided on the surface of the clamping plate near the frame.
[0033] In one possible implementation, the frame includes:
[0034] The horizontal support is fixedly mounted on the pier body.
[0035] The inclined support is fixed at one end to the pier body and at the other end to the horizontal support.
[0036] The longitudinal beam is fixedly installed on the horizontal support part;
[0037] The crossbeam is fixedly mounted on the longitudinal beam;
[0038] The bottom mold is fixedly mounted on the crossbeam.
[0039] This utility model provides a continuous beam preloading bracket, which, compared with existing technologies, offers the following advantages: During use, multiple guardrails are installed on the frame and interlock to form a space for placing sandbags. In this way, when sandbags are preloaded on the frame, the guardrails form an effective enclosure structure, preventing sandbags from falling off the frame due to deformation. Specifically, the first connector connects the frame and the guardrails, ensuring the guardrails are firmly fixed to the frame and will not easily shift or tip over due to the pressure of the sandbags or other external forces. The second connector connects two adjacent guardrails, further enhancing the overall stability of the guardrails, making the enclosure structure more robust and reliable, greatly reducing the risk of sandbags falling, and improving safety during construction. Attached Figure Description
[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0041] Figure 1 This is a schematic diagram of the overall structure of the continuous beam preloading bracket provided in an embodiment of the present utility model;
[0042] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;
[0043] Figure 3 for Figure 1 A magnified structural diagram of part B in the middle section;
[0044] Figure 4 A cross-sectional view of the second connector provided in an embodiment of this utility model.
[0045] In the diagram: 1. Frame; 11. Horizontal support; 12. Diagonal support; 13. Longitudinal beam; 14. Horizontal beam; 15. Bottom formwork; 2. Guardrail; 31. Frame connection; 32. Clamping screw; 33. Clamping plate; 331. Anti-slip pad; 34. Guardrail connection; 41. Sleeve; 411. Insert block; 42. Locking block; 43. First elastic element; 44. Slip ring; 45. Second elastic element; 46. Hanging plate; 461. First notch; 462. Second notch; 47. Connecting column. Detailed Implementation
[0046] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model 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 of the present utility model and are not intended to limit the present utility model.
[0047] Please see Figure 1 This invention provides a continuous beam preloading bracket. The continuous beam preloading bracket includes a frame body 1, multiple guardrails 2, a first connector, and a second connector. The frame body 1 is fixedly mounted on the pier. Multiple guardrails 2 are mounted on the frame body 1 and arranged sequentially along the edge of the frame body 1, forming a enclosure structure for protecting sandbags. The first connector connects the frame body 1 and the guardrails 2, securing them together. The second connector connects two adjacent guardrails 2, securing them together.
[0048] First, the first connecting pieces are sequentially connected along the edge of the frame 1 to fix them to the frame 1. Then, the second connecting pieces are used to sequentially connect the adjacent guardrails 2 on the left and right sides. Next, the guardrails 2 are connected to the first connecting pieces, forming a barrier structure to protect the sandbags. Finally, based on the actual amount of sandbags to be stacked, the second connecting pieces are used to continue splicing the guardrails 2 above them, thereby increasing the overall height of the barrier and providing comprehensive protection for the sandbags stacked on the frame 1. This prevents the sandbags from falling during stacking, thus improving safety during construction.
[0049] In some embodiments, see Figure 1 The frame 1 includes a horizontal support section 11, an inclined support section 12, a longitudinal beam 13, a transverse beam 14, and a bottom formwork 15. It should be understood that the number of the horizontal support section 11, the inclined support section 12, the longitudinal beam 13, the transverse beam 14, and the bottom formwork 15 can be adjusted according to actual usage requirements, and no specific restrictions are imposed here.
[0050] Please see below. Figure 1 The horizontal support 11 is horizontally fixed to the pier body. One end of the diagonal support 12 is fixed to the pier body, and the other end is fixed to the horizontal support 11. The diagonal support 12, the horizontal support 11, and the pier body form a triangular structure. The longitudinal beam 13 is fixedly mounted on the horizontal support 11, and the transverse beam 14 is fixedly mounted on the longitudinal beam 13. The longitudinal beams 13 are evenly distributed along the length of the bridge, and the transverse beams 14 are evenly distributed along the width of the bridge, making the longitudinal beams 13 and transverse beams 14 perpendicular to each other. Both the longitudinal beams 13 and the transverse beams 14 are I-beam structures. The bottom formwork 15 is fixedly mounted on the transverse beams 14, and the bottom formwork 15 provides a complete working platform for the prestressing operation.
[0051] In some embodiments, see Figure 2 The first connecting component includes a frame connecting part 31, a clamping screw 32, and a clamping plate 33. The frame connecting part 31 is sleeved on the frame 1. The clamping screw 32 is threadedly connected to the frame connecting part 31. The clamping plate 33 is rotatably disposed at one end of the clamping screw 32 near the frame 1. The clamping plate 33 abuts against the frame 1 to fix the position of the frame connecting part 31 on the frame 1.
[0052] There are two clamping screws 32, which are respectively located on both sides of the frame connecting part 31. There are two clamping plates 33, which correspond one-to-one with the clamping screws 32.
[0053] It should be understood that when the first connector is installed along the length of the bridge, it is connected to the longitudinal beam 13, and when the first connector is installed along the width of the bridge, it is connected to the transverse beam 14.
[0054] For example, when installing the first connector along the length of the bridge, after the frame connector 31 is fitted onto the longitudinal beam 13, the clamping screw 32 is operated. By rotating the clamping screw 32, it gradually moves towards the longitudinal beam 13 on the frame connector 31. As the clamping screw 32 rotates, the clamping plate 33 also moves closer to the longitudinal beam 13. As the clamping plate 33 moves closer to the longitudinal beam 13, it gradually increases the pressure on the longitudinal beam 13 until it is tightly pressed against the longitudinal beam 13, thereby increasing the friction and firmly fixing the frame connector 31 to the longitudinal beam 13.
[0055] In some embodiments, see Figure 2 The first connector also includes a guardrail connecting part 34. The guardrail connecting part 34 is rotatably mounted on the frame connecting part 31. The guardrail connecting part 34 has a threaded hole, and the surface of the guardrail 2 near the guardrail connecting part 34 has threads (not shown in the figure) to allow the guardrail 2 and the frame connecting part 31 to be threadedly connected.
[0056] Specifically, when installing the guardrail 2, first rotate the guardrail connecting part 34 to a suitable angle to align it with the threads on the surface of the guardrail 2. Next, rotate the guardrail connecting part 34 to gradually engage the threads. As the threads are continuously screwed in, the connection between the guardrail 2 and the guardrail connecting part 34 gradually strengthens until the required tightness is achieved. This threaded connection method not only provides reliable connection strength but also improves the convenience and flexibility of the connection.
[0057] In some embodiments, see Figure 3 and Figure 4 The second connecting component includes a sleeve 41, two locking blocks 42, two first elastic elements 43, and two locking assemblies. The two ends of the sleeve 41 are respectively fitted onto two adjacent guardrail posts 2. The two locking blocks 42 are slidably disposed at both ends of the sleeve 41, corresponding one-to-one with the two adjacent guardrail posts 2, and slide radially along the sleeve 41. The two first elastic elements 43 are disposed between the sleeve 41 and the locking blocks 42, corresponding one-to-one with the two locking blocks 42, and are used to push the locking blocks 42 out from the outer side of the sleeve 41. The two locking assemblies are disposed on the sleeve 41, corresponding one-to-one with the two locking blocks 42, and are used to push the locking blocks 42 out from the inner side of the sleeve 41. When the guardrail post 2 is inserted into the sleeve 41 along its axial direction, the locking blocks 42 can extend from the inner side of the sleeve 41 and be inserted into the guardrail post 2, thereby fixing the guardrail post 2 and the sleeve 41 together.
[0058] As an alternative implementation, the first elastic element 43 can be an elastic object such as an elastic rope or a spring.
[0059] In the initial state, under the action of the first elastic element 43, one end of the locking block 42 extends out from the outer side of the sleeve 41, while the other end is completely retracted into the sleeve 41. This ensures that the locking block 42 does not obstruct the insertion connection between the guardrail 2 and the sleeve 41, guaranteeing that the guardrail 2 can be properly inserted into the sleeve 41. When connecting adjacent guardrails 2, first, one end of the sleeve 41 is placed on one guardrail 2, and then the other guardrail 2 is inserted into the other end of the sleeve 41. At this time, the locking component needs to be operated to make the locking block 42 extend from the inner side of the sleeve 41 and insert into the guardrail 2, thereby achieving a fixed connection between the guardrail 2 and the sleeve 41.
[0060] In some embodiments, see Figure 3 and Figure 4 The locking assembly includes a slip ring 44 and a second elastic member 45. The slip ring 44 is sleeved on the outer side of the sleeve 41 and slides axially along the sleeve 41. The second elastic member 45 is disposed between the slip ring 44 and the sleeve 41, and is sleeved on the sleeve 41. The second elastic member 45 is used to push the slip ring 44 towards the locking block 42. When the second elastic member 45 is in its original length state, the inner side of the slip ring 44 abuts against the locking block 42, causing the locking block 42 to retract into the sleeve 41. The end of the locking block 42 facing the slip ring 44 has an arc-shaped surface.
[0061] After the sleeve 41 is fitted onto the guardrail 2, the slip ring 44 is released, causing it to move closer to the locking block 42 under the action of the second elastic element 45. The slip ring 44 abuts against the arc-shaped surface of the locking block 42, thereby squeezing the locking block 42, causing it to retract and extend from the inner side of the sleeve 41, thus allowing the locking block 42 to be inserted into the guardrail 2, achieving the connection between the sleeve 41 and the guardrail 2.
[0062] In some embodiments, see Figure 3 and Figure 4 Two hanging plates 46 are rotatably mounted on the sleeve 41, each corresponding to one of the two slip rings 44. Each hanging plate 46 has a first notch 461, and a connecting post 47 is fixedly mounted on each of the two slip rings 44. When the connecting post 47 is engaged with the first notch 461, the slip ring 44 disengages from the locking block 42, allowing the locking block 42 to extend out of the sleeve 41.
[0063] When connecting the guardrail 2 to the sleeve 41, the locking block 42 needs to be pulled out from the inner side of the sleeve 41 to ensure that the guardrail 2 can be properly inserted into the sleeve 41. The position of the slip ring 44 is fixed by connecting the connecting post 47 on the slip ring 44 to the first notch 461 on the hanging plate 46. At this time, the slip ring 44 is disengaged from the locking block 42, which allows the locking block 42 to extend outward from the sleeve 41, thus ensuring that the guardrail 2 can be inserted into the sleeve 41 without obstruction.
[0064] In some embodiments, see Figure 3 and Figure 4 Both mounting plates 46 have a second notch 462. When the connecting post 47 is engaged with the second notch 462, the slip ring 44 abuts against the locking block 42.
[0065] After connecting the guardrail 2 and the sleeve 41, it is necessary to ensure that the slip ring 44 does not move, so as to ensure that the locking block 42 is always in the plugged state with the guardrail 2. At this time, by connecting the connecting post 47 on the slip ring 44 to the second notch 462 on the hanging plate 46, the position of the slip ring 44 can be fixed, so that the inner side of the slip ring 44 always abuts against the locking block 42, ensuring that the sleeve 41 and the guardrail 2 will not accidentally detach.
[0066] In some embodiments, see Figure 4 A plug 411 is fixedly mounted on the sleeve 41 along the axial direction, and a slot is provided on the guardrail 2 to be inserted into the plug 411. The engagement of the plug 411 and the slot plays a positioning role when the guardrail 2 is connected to the sleeve 41. When the plug 411 is inserted into the slot, it ensures that the guardrail 2 and the sleeve 41 are accurately positioned in the axial and circumferential directions, avoiding unstable connection between the locking block 42 and the guardrail 2 due to installation deviation.
[0067] In some embodiments, see Figure 2 An anti-slip pad 331 is fixedly installed on the surface of the clamping plate 33 near the frame 1. The anti-slip pad 331 significantly increases the friction between the clamping plate 33 and the frame 1. During the pre-compression process, the guardrail 2 will be subjected to various external forces. The anti-slip pad 331 can ensure that the clamping plate 33 and the frame 1 will not slide relative to each other due to these external forces, thereby making the guardrail 2 more firmly fixed to the frame 1 and improving the overall stability of the protective structure.
[0068] In summary, the continuous beam preloading bracket provided by this utility model, compared with the prior art, features multiple guardrails 2 installed on the frame 1 and joined together to form a space for placing sandbags during use. In this way, when sandbags are preloaded on the frame 1, the guardrails 2 form an effective enclosure structure, preventing the sandbags from falling off the frame due to deformation. Specifically, the first connector connects the frame 1 and the guardrails 2, ensuring the guardrails 2 are firmly fixed to the frame 1 and will not easily shift or tip over due to the pressure of the sandbags or other external forces. The second connector connects two adjacent guardrails 2, further enhancing the overall stability of the guardrails 2, making the enclosure structure more robust and reliable, greatly reducing the risk of sandbags falling, and improving safety during construction.
[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A continuous beam preloading bracket, characterized in that, include: The frame (1) is fixedly installed on the pier; Multiple guardrails (2) are installed on the frame (1) and arranged sequentially along the edge of the frame (1), and the multiple guardrails (2) together form a fence structure; A first connector, connected between the frame (1) and the guardrail (2), is used to fix the frame (1) and the guardrail (2); and The second connector is connected between two adjacent guardrails (2) and is used to fix the two adjacent guardrails (2).
2. A continuous beam preloading bracket as described in claim 1, characterized in that, The first connector includes: The frame connecting part (31) is sleeved on the frame (1); The clamping screw (32) is threadedly connected to the frame connection part (31); The clamping plate (33) is rotatably disposed at one end of the clamping screw (32) near the frame (1); The clamping plate (33) abuts against the frame (1) to fix the position of the frame connecting part (31) on the frame (1).
3. A continuous beam preloading bracket as described in claim 2, characterized in that, The first connector further includes: The guardrail connecting part (34) is rotatably mounted on the frame connecting part (31); the guardrail connecting part (34) is provided with a threaded hole, and the guardrail (2) has a thread on the surface near the guardrail connecting part (34) so that the guardrail (2) and the frame connecting part (31) are threadedly connected.
4. A continuous beam preloading bracket as described in claim 1, characterized in that, The second connector includes: The sleeve (41) is fitted at both ends onto the two adjacent guardrails (2); Two locking blocks (42) are slidably disposed at both ends of the sleeve (41) and correspond one-to-one with the two adjacent guardrails (2). The locking blocks (42) slide radially along the sleeve (41). Two first elastic elements (43) are disposed between the sleeve (41) and the locking block (42), and correspond one-to-one with the two locking blocks (42), for pushing the locking block (42) to extend from the outer side of the sleeve (41); Two locking components are provided on the sleeve (41) and correspond one-to-one with the two locking blocks (42), for pushing the locking blocks (42) out from the inner side of the sleeve (41); When the guardrail (2) is inserted into the sleeve (41) along the axial direction, the locking block (42) can extend from the inner side of the sleeve (41) and be inserted into the guardrail (2) to fix the guardrail (2) and the sleeve (41).
5. A continuous beam preloading bracket as described in claim 4, characterized in that, The locking component includes: A slip ring (44) is fitted onto the outer side of the sleeve (41); The second elastic element (45) is disposed between the slip ring (44) and the sleeve (41) for pushing the slip ring (44) to move toward the locking block (42); When the second elastic element (45) is in its original length state, the inner side of the slip ring (44) abuts against the locking block (42) so that the locking block (42) retracts into the inside of the sleeve (41).
6. A continuous beam preloading bracket as described in claim 5, characterized in that, Two hanging plates (46) are rotatably mounted on the sleeve (41). The two hanging plates (46) correspond one-to-one with the two slip rings (44). A first notch (461) is opened on each of the two hanging plates (46). A connecting post (47) is fixedly mounted on each of the two slip rings (44). When the connecting post (47) is engaged with the first notch (461), the slip ring (44) disengages from the locking block (42) so that the locking block (42) extends out of the sleeve (41).
7. A continuous beam preloading bracket as described in claim 6, characterized in that, Both of the aforementioned mounting plates (46) have a second notch (462); When the connecting post (47) is engaged with the second notch (462), the slip ring (44) abuts against the locking block (42).
8. A continuous beam preloading bracket as described in claim 4, characterized in that, A plug (411) is fixedly provided on the sleeve (41) along the axial direction, and a slot suitable for insertion into the plug (411) is provided on the guardrail (2).
9. A continuous beam preloading bracket as described in claim 2, characterized in that, An anti-slip pad (331) is fixedly provided on the surface of the clamping plate (33) near the frame (1).
10. A continuous beam preloading bracket as described in claim 1, characterized in that, The frame (1) includes: The horizontal support (11) is horizontally fixedly installed on the pier body; The inclined support (12) is fixed at one end to the pier body and at the other end to the horizontal support (11); The longitudinal beam (13) is fixedly mounted on the horizontal support (11); A crossbeam (14) is fixedly mounted on the longitudinal beam (13); The bottom mold (15) is fixedly installed on the crossbeam (14).