Supporting device for cast-in-place bent cap temporary support

Abstract

The utility model relates to the technical field of cast-in-place bent cap temporary supports, and discloses a supporting device for a cast-in-place bent cap temporary support, which comprises a bridge pier column, a bridge bent cap is fixedly connected to the top of the bridge pier column, a supporting mechanism is arranged outside the bridge pier column, two edge fixing plates are arranged outside the bridge bent cap, and the edge fixing plates are fixedly connected with the bridge bent cap. And the supporting mechanism comprises a supporting frame, the top of the supporting frame is slidably connected with a reinforcing assembly, the reinforcing assembly comprises a sliding fixing plate, the top of the sliding fixing plate is fixedly connected with a fixing ring, the interior of the fixing ring is rotatably connected with a connecting ring, and the exterior of the connecting ring is rotatably connected with a buffering supporting column. According to the utility model, the support frame is sleeved into the pier column, slides to the marked height and is temporarily fixed by using the reinforcing and dismounting screws, so that the mounting efficiency is improved, the device can be quickly dismounted and turned over, the reinforcing assemblies on the two sides are ensured to symmetrically move, the horizontal thrust is counteracted, and the material cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of temporary support technology for cast-in-place cap beams, and in particular to a support device for temporary supports of cast-in-place cap beams. Background Technology

[0002] With the continuous advancement of transportation infrastructure construction, bridge engineering, as a key node, faces increasingly large-scale and complex development demands. As a crucial load-bearing component of the bridge superstructure, the construction quality and efficiency of cast-in-place cap beams directly impact the overall performance of the bridge. This is driven by accelerated urbanization and the increasing number of bridges spanning complex conditions such as railway lines and rivers.

[0003] A search revealed Chinese Patent Publication No. CN217078446U, which discloses a cast-in-place support for a straight section of a continuous beam side span. The support includes a load-bearing foundation platform embedded in the ground and a support frame mounted on the foundation platform. The support frame includes multiple first support columns arranged along the width direction of the bridge beam, multiple second support columns arranged along the width direction of the beam, and a distribution beam connecting the first and second support columns. The first and second support columns are arranged along the length direction of the beam, with each pair of first and second support columns corresponding to the others. Opposite first and second support columns are welded together via a first connecting frame, and adjacent first and second support columns are welded together via second connecting frames.

[0004] The aforementioned patent specification mentions that "the support frame includes a plurality of first support columns arranged along the width direction of the bridge beam, a plurality of second support columns arranged along the width direction of the beam, and a distribution beam connected above the first and second support columns; wherein the first and second support columns are arranged along the length direction of the beam, the plurality of first support columns and the plurality of second support columns are arranged in a one-to-one correspondence, and the opposing first and second support columns are welded together by a first connecting frame." The above content can address the problems of limited erection height, poor stability, and ineffective quality assurance of node connections in traditional cup-buckle scaffolding, but it occupies a lot of space and installation time. Therefore, a support device for temporary supports of cast-in-place cap beams is proposed to solve the above problems. Utility Model Content

[0005] This utility model proposes a support device for temporary supports of cast-in-place cap beams, aiming to improve the support adjustment problem of some devices in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A support device for a temporary support for a cast-in-place cap beam includes a bridge pier column, with a cap beam fixedly connected to the top of the pier column. A support mechanism is provided on the outside of the pier column, and two edge fixing plates are provided on the outside of the cap beam. A correction and balancing mechanism is provided on the top of the edge fixing plates. The support mechanism includes a support frame, which is slidably connected to the outside of the pier column. A reinforcement component is slidably connected to the top of the support frame. The reinforcement component includes a sliding fixing plate, the bottom of which is slidably connected to the top of the support frame. A fixing ring is fixedly connected to the top of the sliding fixing plate. A connecting ring is rotatably connected inside the fixing ring, and a buffer support column is rotatably connected to the outside of the connecting ring.

[0008] The above scheme involves: the support frame sliding into the pier column and fixing it at the marked height; the cylinder pushing the sliding fixing plate to move symmetrically along the limiting column; the buffer support column adapting to the slope of the bottom surface of the bridge cover beam and contacting the template through the rotating connecting ring; the edge fixing plate being fixed to the edge of the template; the sliding fixing frame being locked after adjusting its width; the support horizontal plate adjusting its elevation; and the support frame forming a triangular structure. During concrete pouring, the buffer support column absorbs deformation, and dynamic balance is achieved by adjusting the sliding fixing frame and the cylinder. After initial setting, the components are disassembled sequentially.

[0009] As a further description of the above technical solution:

[0010] The corrective balancing mechanism includes two sliding fixing brackets. The bottom of the sliding fixing brackets is non-slidingly connected to the outside of the edge fixing plate. The edge fixing plate and the sliding fixing brackets are threadedly connected by mounting screws.

[0011] The above solution involves attaching the edge fixing plate to the edge of the bridge cover beam template, initially positioning it by installing fixing screws, sliding the sliding fixing frame along the outer groove of the edge fixing plate to the designed width, tightening the fixing screws to lock it, inserting the support cross plate into the sliding fixing frame to adjust the elevation, and fixing the support frame and the connecting load-bearing strip to form a triangular support, thereby increasing the anti-overturning moment, quickly completing the template tilt correction, achieving precise width control, fine-tuning of elevation, and overall structural stability.

[0012] As a further description of the above technical solution:

[0013] The top of the buffer support column is fixedly connected to the bottom of the edge fixing plate, and the top two ends of the support frame are fixedly connected to the connecting load-bearing strips. A cylinder is fixedly connected to the outside of the connecting load-bearing strips, and the driving end of the cylinder is fixedly connected to the outside of the sliding fixing plate.

[0014] The above scheme involves a cylinder driving a sliding fixed plate to slide along the top of the support frame. Through the connecting load-bearing bar, the plate is guided and the buffer support column is symmetrically pushed to the bottom of the bridge cover beam template. The connecting ring rotates to adapt to the template slope, and the hydraulic buffer absorbs the initial contact stress. The support force is synchronized, and the slope is adaptively adjusted, improving the uniformity of load transfer. This enables rapid alignment, dynamic load adjustment, and slope adaptation.

[0015] As a further description of the above technical solution:

[0016] The sliding fixing plate is externally slidably connected to the outside of the bridge cover beam, and the support frame is provided with reinforcing and disassembly screws.

[0017] The above scheme involves: after the support frame is inserted into the bridge pier column, it slides to the marked height, and is quickly and initially fixed by reinforcing and disassembling screws. The sliding fixing plate slides along the outside of the bridge cap beam to adjust its position, and is pushed to the design support point by a cylinder. After construction is completed, the cylinder is reversed and the screws are loosened to quickly disassemble the support frame, reducing damage to the surface of the bridge pier column and achieving rapid positioning, low-damage disassembly, and efficient turnover.

[0018] As a further description of the above technical solution:

[0019] A limiting post is provided between the two connecting load-bearing bars, and the outside of the limiting post is slidably connected to the inside of the reinforcing component.

[0020] The above solution involves the sliding fixing plate of the reinforcement component fitting into the limiting post and sliding symmetrically along the limiting trajectory between the connecting load-bearing bars. It is driven by a cylinder to the bottom of the bridge cover beam template. The limiting post restricts the lateral offset range, ensuring that the support force on both sides is evenly transmitted to the support frame, avoiding the risk of overturning caused by the eccentric force on the support, and achieving precise guidance, balanced force transmission and rapid centering.

[0021] As a further description of the above technical solution:

[0022] The sliding frame has a supporting cross plate that slides internally.

[0023] The above method involves inserting the support plate into the sliding groove inside the sliding fixing frame, adjusting it up and down according to the elevation of the bridge cover beam template, fixing it with a locking device, and then finely adjusting the template level with the top support. During the concrete pouring process, the displacement of the support plate is observed in real time and dynamically adjusted.

[0024] As a further description of the above technical solution:

[0025] The edge fixing plate is externally fixedly connected to a support frame, and the support frame is internally provided with a support crossbar and a support diagonal bar.

[0026] The above scheme involves fixing the support frame to the outside of the edge fixing plate, installing support crossbars and support diagonal bars inside to form a triangular structure, fixing the bottom to the connecting load-bearing strip, transmitting horizontal loads through the crossbars and offsetting overturning moments through the diagonal bars, and ensuring that the structure is safe and reliable throughout the entire process of formwork installation and concrete pouring.

[0027] As a further description of the above technical solution:

[0028] The bottom of the support frame is fixedly connected to the outside of the connecting load-bearing strip.

[0029] The above solution involves welding or bolting the bottom of the support frame to the connecting load-bearing strip, making the support frame, connecting load-bearing strip, and support frame a rigid whole. Horizontal loads are transferred to the connecting load-bearing strip through the support crossbars and diagonal bars, and then transmitted to the bridge pier column through the support frame, thus achieving a rigid connection and efficient force transmission of the support system.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, the support frame is inserted into the bridge pier column and slid to the marked height. It is temporarily fixed by the reinforcing disassembly screws, avoiding the complicated process of accurately calculating friction force required by the traditional clamp-type support. The installation efficiency is improved, and it can be quickly disassembled and reused. The guide design of the limiting column and the connecting load-bearing strip ensures that the reinforcing components on both sides move symmetrically, offsetting the horizontal thrust and avoiding the risk of overturning caused by the eccentric force of the support. The initial installation error can be controlled within ±2mm. The buffer support column rotates in the fixed ring through the connecting ring, automatically adapting to the 0-15° slope change of the bottom surface of the bridge cover beam. There is no need to customize the support components, saving material costs.

[0032] 2. In this utility model, by combining the edge fixing plate and the sliding fixing frame, and by sliding the slide groove and locking it with the installation fixing screw, the support cross plate and the top support slide up and down, and the template elevation can be finely adjusted to ±2mm accuracy, which meets the stringent requirements of high-grade highway bridges for the flatness of the cap beam. The support frame forms a truss system through the support crossbar and the support diagonal bar, which improves the anti-overturning moment and can resist the horizontal displacement caused by wind force below level 5. The bottom is fixed to the connecting load-bearing strip, which directly transfers the horizontal load to the support frame, reduces the dependence on the surface of the bridge pier column, and avoids the problem of insufficient friction caused by the smooth surface of the pier column in traditional clamp-type supports. Attached Figure Description

[0033] Figure 1 This is a three-dimensional schematic diagram of a support device for a temporary support for a cast-in-place cap beam proposed in this utility model;

[0034] Figure 2 This is a schematic diagram of the support crossbar of a support device for a temporary support for a cast-in-place cap beam proposed in this utility model;

[0035] Figure 3 for Figure 2 Enlarged view of point A in the middle

[0036] Figure 4 This is a cylinder diagram of a support device for a temporary support frame for a cast-in-place cap beam, as proposed in this utility model.

[0037] Legend:

[0038] 1. Bridge pier column; 2. Bridge cap beam; 3. Support mechanism; 301. Support frame; 302. Connecting load-bearing strip; 303. Limiting column; 304. Reinforcing component; 30401. Sliding fixing plate; 30402. Fixing ring; 30403. Connecting ring; 30404. Buffer support column; 305. Reinforcing disassembly screw; 306. Cylinder; 4. Correction and balancing mechanism; 401. Support cross plate; 402. Sliding fixing frame; 403. Installation fixing screw; 404. Support frame; 405. Support crossbar; 406. Support diagonal bar; 5. Edge fixing plate. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figures 1 to 3This utility model provides an embodiment of a support device for temporary supports of cast-in-place cap beams, including a pier column 1, a cap beam 2 fixedly connected to the top of the pier column 1, a support mechanism 3 provided on the outside of the pier column 1, the pier column 1 being used to bear the construction load of the cap beam 2 and all the vertical force transmitted by the support mechanism 3, two edge fixing plates 5 provided on the outside of the cap beam 2, the cap beam 2 achieving formwork positioning and load transmission through the support mechanism 3 and the straightening and balancing mechanism 4, the bottom slope of the cap beam 2 being adaptively adjusted through the rotational connection of the buffer support column 30404 to ensure tight formwork fit during concrete pouring, the top of the edge fixing plate 5 being provided with the straightening and balancing mechanism 4, the support mechanism 3 including a support frame 301, the support frame 301 being externally The support frame 301 is a vertical main load-bearing frame that is slidably connected to the outside of the pier column 1. Its height can be adjusted by sliding to adapt to different cap beam elevations. A reinforcing component 304 is slidably connected to the top of the support frame 301. The reinforcing component 304 includes a sliding fixing plate 30401, which slides laterally along the top guide rail of the support frame 301. Driven by a cylinder 306, it achieves symmetrical movement on both sides, precisely positioning itself below the cap beam 2 template. The bottom of the sliding fixing plate 30401 is slidably connected to the top of the support frame 301. A fixing ring 30402 is fixedly connected to the top of the sliding fixing plate 30401. A connecting ring 30403 is rotatably connected inside the fixing ring 30402, forming a [missing information - likely a typo]. The rotating joint connection allows the buffer support column 30404 to rotate freely within a certain range, adapting to the bottom slope of the bridge cap beam 2. The fixed ring 30402 restricts the axial displacement of the connecting ring 30403, ensuring stable load transmission during rotation. The external rotating connection of the connecting ring 30403 is the buffer support column 30404. The buffer support column 30404 is equipped with a hydraulic structure to absorb minor deformations of the support frame and buffer the initial impact force of concrete pouring, preventing cracking caused by sudden settlement of the formwork. The top of the buffer support column 30404 is fixedly connected to the bottom of the edge fixing plate 5. The top two ends of the support frame 301 are fixedly connected to the connecting load-bearing strips 302. The connecting load-bearing strips 302 connect the cylinders 306 on both sides and the limiting column 303, forming a rigid force transmission path. A cylinder 306 is fixedly connected to the outside of the connecting load-bearing bar 302. The drive end of the cylinder 306 is fixedly connected to the outside of the sliding fixed plate 30401. The sliding fixed plate 30401 provides real-time feedback of the support force through a pressure sensor to achieve dynamic load adjustment. During the pouring process, the support force on both sides is adjusted synchronously according to the monitoring data to offset the asymmetrical load of the concrete. The outside of the sliding fixed plate 30401 is slidably connected to the outside of the bridge cap beam 2. The outside of the support frame 301 is provided with a reinforcement and disassembly screw 305. The reinforcement and disassembly screw 305 can be quickly loosened when disassembling to avoid cutting and damaging the surface of the pier column by the traditional welding bracket. A limit column 303 is provided between the two connecting load-bearing bars 302. The outside of the limit column 303 is slidably connected to the inside of the reinforcement component 304.

[0041] Specifically, the support frame 301 is fitted onto the pier column 1 and slid to the marked height. It is then temporarily fixed using the reinforcing and disassembling screws 305. The cylinder 306 drives the sliding fixing plate 30401 to move laterally along the guide column 303, causing the buffer support column 30404 to push the edge fixing plate 5 below the bridge cap beam 2 template. The connecting ring 30403 rotates to adapt to the template slope, completing the support positioning. After the edge fixing plate 5 is in contact with the template edge, the sliding fixing plate 30401 and the edge fixing plate 5 are made of machined steel with excellent wear resistance, ensuring smooth sliding. The width of the cap beam is adjusted and locked using the sliding fixing frame 402. The support horizontal plate 401 adjusts the template elevation. The support frame 404 and the connecting load-bearing strip 302 are fixed to form a triangular stable structure. The support frame 301 and the connecting load-bearing strip 302 are made of high-strength steel, which has high strength and good toughness, meeting the requirements of vertical load bearing and horizontal force transmission. The surface is hot-dip galvanized to enhance corrosion resistance. When the concrete is poured in layers, the hydraulic structure of the buffer support column 30404 absorbs the deformation of the support. The buffer support column 30404 has a hydraulic cylinder inside, the cylinder body is made of seamless steel pipe, the seal is made of fluororubber, and the outside is wrapped with an anti-rust coating. The cylinder 306, combined with the pressure sensor, dynamically adjusts the support force on both sides, and simultaneously corrects the tilt of the template through the sliding fixed frame 402 to ensure the stability of the pouring process. After the concrete has initially set, the cylinder 306 is operated in reverse to release the support, the reinforcing and disassembling screws 305 are loosened and the support frame 301 is removed, and the components are classified and stored for reuse.

[0042] Reference Figure 1 , Figure 2 and Figure 4 The correction and balancing mechanism 4 includes two sliding fixed frames 402. The bottom of the sliding fixed frame 402 is non-slidingly connected to the outside of the edge fixed plate 5. The edge fixed plate 5 serves as the horizontal positioning reference for the template. The edge fixed plate 5 and the sliding fixed frame 402 are threadedly connected by mounting and fixing screws 403. The sliding groove inside the sliding fixed frame 402 accommodates the support horizontal plate 401, enabling fine adjustment of the template elevation. The support horizontal plate 401 is slidably connected inside the sliding fixed frame 402. The support frame 404 is fixedly connected to the outside of the edge fixed plate 5. The support horizontal bar 405 and the support diagonal bar 406 are provided inside the support frame 404. The support frame 404, the support horizontal bar 405, and the support diagonal bar 406 form a triangular stable structure. The support horizontal bar 405 transmits the horizontal load, and the support diagonal bar 406 counteracts the overturning moment and transmits the lateral pressure of the template to the support frame 301. The bottom of the support frame 404 is fixedly connected to the outside of the connecting load-bearing bar 302.

[0043] Specifically, first, attach the edge fixing plate 5 to the edge of the bridge cap beam 2 template to make it a reference for horizontal positioning of the template. Then, place the sliding fixing bracket 402 outside the edge fixing plate 5 and make a preliminary connection using the mounting fixing screws 403, but do not tighten them. Slide the fixing bracket 402 along the outside of the edge fixing plate 5 to the designed width of the bridge cap beam 2, and then tighten the mounting fixing screws 403 to firmly fix the sliding fixing bracket 402 to the edge fixing plate 5. Insert the support cross plate 401 into the internal groove of the sliding fixing bracket 402, and slide the support cross plate up and down according to the required elevation of the template. The plate 401 is finely adjusted to ensure that the template is at the appropriate height. The support frame 404 is fixed to the outside of the edge fixing plate 5. At the same time, the bottom of the support frame 404 is fixedly connected to the connecting load-bearing strip 302. Then, the support crossbar 405 and the support diagonal bar 406 are installed inside the support frame 404 to form a triangular stable structure. During the concrete pouring process, the support crossbar 405 transmits the horizontal load on the template, and the support diagonal bar 406 offsets the possible overturning moment and transmits the lateral pressure of the template to the support frame 301, ensuring the stability and safety of the template during construction.

[0044] Working principle: The support frame 301 is fitted onto the outside of the pier column 1, and its height is adjusted to the marked position by sliding. The support frame 301 is temporarily fixed to the pier column 1 using the reinforcing and disassembly screws 305 to ensure initial stability. The sliding fixing plate 30401 is pushed towards the pier column 1 by the cylinder 306. It is guided by the limiting column 303 between the connecting load-bearing bars 302. The two sides are symmetrical, thus initially fixing the bridge cap beam 2. The top of the buffer support column 30404 gradually approaches the bottom of the bridge cap beam 2 template. The buffer support column 30404 rotates in the fixing ring 30402 through the connecting ring 30403, automatically adapting to the bottom slope of the bridge cap beam 2. It buffers the initial contact stress through its own elasticity, ensuring that the load is evenly transferred to the support frame 301.

[0045] The edge fixing plate 5 is attached to the edge of the bridge cover beam 2 template and initially fixed to the outside of the template by the installation fixing screws 403, ensuring that it is perpendicular to the axis of the bridge cover beam 2. The sliding fixing bracket 402 is slid along the outer groove of the edge fixing plate 5 and adjusted to the designed width position of the bridge cover beam 2. The installation fixing screws 403 are tightened to fix it. The support horizontal plate 401 is inserted into the inner groove of the sliding fixing bracket 402, and the width of the bridge cover beam 2 is fixed by the edge fixing plate 5. It serves as the top support point of the template. The elevation is adjusted by sliding up and down. The level of the bridge cover beam 2 template is finely adjusted with the top support. At the same time, the support frame 404 is installed. Its bottom is fixed to the connecting load-bearing strip 302. The internal structure is formed by the support horizontal bar 405 and the support diagonal bar 406 to enhance the overall anti-overturning ability.

[0046] During the concrete layered pouring process, the buffer support column 30404 absorbs the slight deformation of the support through the internal hydraulic device to avoid sudden settlement of the formwork. The displacement of the support plate 401 of the correction and balance mechanism 4 is observed in real time. If the bridge cover beam 2 formwork is found to be tilted, the horizontal position of the sliding fixing frame 402 is adjusted by tightening the installation fixing screw 403. At the same time, the vertical bearing capacity of the support mechanism 3 is adjusted by the cylinder 306 to achieve dynamic balance.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 support device for a cast-in-place cap beam temporary support, comprising a pier column (1), characterized in that: The top of the bridge pier column (1) is fixedly connected to the bridge cap beam (2), the outside of the bridge pier column (1) is provided with a support mechanism (3), the outside of the bridge cap beam (2) is provided with two edge fixing plates (5), and the top of the edge fixing plate (5) is provided with a correction and balancing mechanism (4). The support mechanism (3) includes a support frame (301), the outside of which is slidably connected to the outside of the bridge pier column (1), and a reinforcement component (304) is slidably connected to the top of the support frame (301). The reinforcement component (304) includes a sliding fixing plate (30401), the bottom of which is slidably connected to the top of the support frame (301). A fixing ring (30402) is fixedly connected to the top of the sliding fixing plate (30401), and a connecting ring (30403) is rotatably connected inside the fixing ring (30402). A buffer support column (30404) is rotatably connected to the outside of the connecting ring (30403).

2. The support device for the temporary support of cast-in-place capping beams according to claim 1, characterized in that: The correction and balancing mechanism (4) includes two sliding fixing brackets (402). The bottom of the sliding fixing bracket (402) is non-slidingly connected to the outside of the edge fixing plate (5). The edge fixing plate (5) and the sliding fixing bracket (402) are threadedly connected with mounting fixing screws (403).

3. The support device for the temporary support of cast-in-place capping beams according to claim 2, characterized in that: The top of the buffer support column (30404) is fixedly connected to the bottom of the edge fixing plate (5), and the top two ends of the support frame (301) are fixedly connected to the connecting load-bearing strip (302). The outside of the connecting load-bearing strip (302) is fixedly connected to the cylinder (306), and the driving end of the cylinder (306) is fixedly connected to the outside of the sliding fixing plate (30401).

4. The support device for the temporary support of cast-in-place capping beams according to claim 3, characterized in that: The sliding fixing plate (30401) is slidably connected to the outside of the bridge cover beam (2), and the support frame (301) is provided with a reinforcing disassembly screw (305).

5. The support device for the temporary support of cast-in-place capping beams according to claim 3, characterized in that: A limiting post (303) is provided between the two connecting load-bearing bars (302), and the external of the limiting post (303) is slidably connected to the inside of the reinforcing component (304).

6. The support device for the temporary support of cast-in-place capping beams according to claim 5, characterized in that: The sliding fixing frame (402) has a supporting cross plate (401) internally slidably connected.

7. The support device for the temporary support of cast-in-place capping beams according to claim 6, characterized in that: The edge fixing plate (5) is externally fixedly connected to a support frame (404), and a support crossbar (405) is provided inside the support frame (404), and a support diagonal bar (406) is provided inside the support frame (404).

8. The support device for the temporary support of cast-in-place capping beams according to claim 7, characterized in that: The bottom of the support frame (404) is fixedly connected to the outside of the connecting load-bearing bar (302).

Images