Cast-in-place beam supporting system
By designing an adjustable cast-in-place beam support system, the problem of material waste in traditional support methods was solved, adaptive support for different bridge flange shapes was achieved, construction costs and resource consumption were reduced, and construction efficiency was improved.
Patent Information
- Application Number
- CN202422888951.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Traditional cast-in-place box girder support methods can only be applied to specific beam shapes after material processing, resulting in material waste and increased construction costs, affecting construction flexibility and material utilization.
Design an adjustable cast-in-place beam support system, including adjustable support components and flange support main beams. Adaptive support for different bridge flange shapes is achieved through components such as hinge joints, hinge elements, and double-headed struts. The components are reusable to reduce waste.
It achieves strong flexibility and adaptability to different bridges, reduces material waste, shortens the construction cycle, lowers construction costs, and improves material utilization and construction efficiency.
Smart Images
Figure CN223576952U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge construction technology, specifically a cast-in-place beam support system. Background Technology
[0002] In the field of bridge construction technology, the support method of cast-in-place box girder is a key focus for engineers because it directly affects construction safety, structural accuracy, material utilization, construction efficiency, and cost control.
[0003] The support system must ensure stability while adapting to different beam shapes to effectively reduce material waste and avoid construction delays. Traditional support methods typically use profiles or steel pipes bent into the shape of bridge flanges to provide support as main beams. Timber is then installed on the main beams as secondary beams, and finally, formwork is laid.
[0004] However, this method has significant limitations, primarily because the shape of the main beam material after bending can only match a portion of the beam shape for a specific project. If project requirements change, such as adjustments to the beam's shape and size, it often necessitates reprocessing a new main beam, resulting in substantial material waste.
[0005] This limitation poses significant challenges to traditional support schemes in practical applications. Each change in beam shape leads to the waste of old materials and the need for new materials, thereby increasing construction costs and resource consumption. Because the main beam material can only be used for specific shapes after processing, this characteristic not only affects construction flexibility but also reduces material utilization efficiency. Utility Model Content
[0006] The purpose of this invention is to provide a cast-in-place beam support system that can adapt to the flange shape of various bridges.
[0007] The cast-in-place beam support system provided by this utility model includes a lower support that provides a support platform for the upper support. The upper support includes a support assembly and a flange support main beam. The support assembly includes a base, a movable support, a connecting base, and a support rod. The base is fixed to the top support of the lower support, and multiple connecting bases are fixed to the base. The connecting bases are connected to the support rod, and the support rod provides support for the flange support main beam. The movable support is adjustable in position on the base and provides limiting support for the inner end of the flange support main beam. The flange support main beam fits the flange shape of the cast-in-place beam.
[0008] In one embodiment of the above system, the flange support main beam includes a hinge joint, a hinge component, and a double-headed strut. A hinge joint is provided at each end of the flange on one side of the cast-in-place beam. Multiple hinge components are provided between the two hinge joints to fit the shape of the flange. Then, a double-headed strut is provided between the two hinge components and between the hinge joint and the hinge component to fix the connection angle between the two adjacent components.
[0009] In one embodiment of the above system, the hinge joint comprises a section of open channel steel, one end of the channel steel has a hinge support extending outward, and two connecting ear plates are arranged on one side of the channel steel and the support.
[0010] In one embodiment of the above system, the hinge joint comprises a section of open channel steel, one end of the channel steel has a hinge support extending outward, and two connecting ear plates are arranged on one side of the channel steel and the support.
[0011] In one embodiment of the above system, the double-end support rod comprises a sleeve and support heads inserted into both ends of the sleeve; the sleeve is hollow, and the support heads are threadedly connected in the sleeve; the head of the support head is a hinge ring.
[0012] In another embodiment of the above system, the flange support girder comprises two channel steels, hinge joints arranged at opposite positions of the two channel steels, and a double-end support rod arranged between the two hinge joints to fix the hinge angle.
[0013] In one embodiment of the above system, the movable support comprises a main rod, a fixed seat, and a clamping plate; the top end of the main rod is provided with a hinge hole, the fixed seat comprises a sleeve and long plates extending to both sides at the bottom end of the sleeve, and the long plates are provided with threaded holes at the ends; the sleeve of the fixed seat is fixedly sleeved on the middle section of the main rod, the fixed seat is placed on the base, and the clamping plate is an L-shaped piece, the vertical section of which is threadedly connected in the hole of the fixed seat from bottom to top, and the horizontal section clamps the base.
[0014] In one embodiment of the above system, the connecting base is fixed on the base, and a pair of clamping ear seats are arranged on both sides of the top end of the connecting base.
[0015] In one embodiment of the above system, the support rod comprises a vertical rod and a screw rod; the bottom end of the vertical rod can be clamped by the connecting base, and the screw rod can be inserted into the vertical rod; the bottom end of the screw rod is provided with a hand nut, the screw rod is inserted into the top end of the vertical rod, the hand nut is pressed on the end of the vertical rod, and the extension length of the screw rod can be adjusted by rotating the hand nut.
[0016] The beneficial effects of the utility model are as follows:
[0017] 1. The support system can be flexibly adjusted according to different bridge flange shapes, is suitable for various beam shapes, and has strong adaptability.
[0018] 2. All components are reusable turnover parts, which greatly reduces material waste caused by customizing of the main beam in the traditional support mode, reduces resource consumption, and has high material utilization.
[0019] 3. The modular design of the support component facilitates quick assembly and disassembly, shortens the construction period, reduces the construction cost, and can ensure the stability and safety of the system. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 Structure schematic view of one embodiment of the utility model.
[0021] Figure 2 For Figure 1 Enlarged structure schematic view of the wing support main beam and support assembly.
[0022] Figure 3 For Figure 2 Structure schematic view of the mobile support.
[0023] Figure 4 For Figure 2 Structure schematic view of the connecting base.
[0024] Figure 5 For Figure 2 Structure schematic view of the support rod.
[0025] Figure 6 For Figure 2 Structure schematic view of the channel steel hinged plate.
[0026] Figure 7 For Figure 2 Structure schematic view of the hinge.
[0027] Figure 8 For Figure 2 Structure schematic view of the double-end spiral support rod.
[0028] Figure 9 For Figure 1 Structure schematic view of the column.
[0029] Figure 10 Structure schematic view of another embodiment of the utility model. DETAILED DESCRIPTION
[0030] The related technical solutions will be described clearly and completely in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the utility model.
[0031] Embodiment one
[0032] As Figure 1 And Figure 2 The utility model discloses a cast-in-place beam support system, which is suitable for the arc-shaped wing of the cast-in-place beam and comprises a lower support and an upper support.
[0033] The lower support is the basic structure of the support assembly, and various support systems on the market can be used, usually disc buckle type scaffolding, steel support or Bailey frame, etc. The lower support provides a stable support platform for the upper support, ensuring that it can withstand the weight of the bridge during construction and maintain the safety of the overall structure.
[0034] The upper support includes a perforated channel steel 1, a movable support 2, a connecting base 3, a support rod 4, a channel steel hinged plate 5, a hinge 6, a double-headed screw support rod 7, and a railing 8.
[0035] The perforated channel steel 1 is composed of two U-shaped channel steels back-to-back double-spliced, with holes on the vertical ribs of the channel steel, and is fixed on the top support of the lower support. The model of the channel steel is selected according to the weight of the upper part of the bridge, and the length of the channel steel is adjusted according to the span of the lower support to ensure that the channel steel can cover the entire cross section of the bridge.
[0036] When the length of the channel steel is not enough to cover the entire cross section of the bridge, the channel steel end is installed with a channel steel butt pipe to connect two channel steels into a whole to enhance the carrying capacity of the channel steel.
[0037] As shown in Figure 3 , the movable support 2 can slide left and right on the perforated channel steel and serve as the first support point of the cast-in-place beam flange web edge. The movable support includes a main rod 21, a fixed base 22, and a clamping plate 23.
[0038] The top end of the main rod 21 is provided with a hinge hole, the fixed base 22 includes a sleeve and a long plate extending to both sides at the bottom end, and the long plate is provided with a threaded hole at the end. The sleeve of the fixed base is fixed on the middle segment of the main rod, the main rod is inserted into the two U-shaped channel steels of the perforated channel steel, and the long plate is placed at the top end of the perforated channel steel. The clamping plate 23 is an L-shaped piece, the vertical segment of which is threadedly connected to the hole of the fixed base from bottom to top, and the horizontal segment clamps the wing plate of the perforated channel steel.
[0039] As shown in Figure 4 , the bottom end vertical plate of the connecting base 3 is inserted and fixed between the two U-shaped channel steels of the perforated channel steel, and a pair of clamping ear seats is provided on both sides of the top end of the connecting base. The connecting base is provided to connect the channel steel with the support rod and provide support force for the support rod.
[0040] As shown in Figure 5 , the support rod 4 includes a vertical rod 41 and a screw rod 42. The bottom end of the vertical rod is clamped by the connecting base 3, and the screw rod can be inserted into the vertical rod. The bottom end of the screw rod is provided with a hand nut, which is pressed against the end of the vertical rod to form a limit when the screw rod is inserted into the top end of the vertical rod during use of the support rod. The total length of the support rod can be adjusted by rotating the hand nut to adjust the extension length of the screw rod. The total length of the support rod can be adjusted by the vertical rod and the screw rod to adapt to different shapes of cast-in-place beam flanges.
[0041] As shown in Figure 6As shown in the figure, the channel steel hinged plate 5 comprises a section of open channel steel, one end of the channel steel has an outwardly extending hinged support, and the channel steel and the support have two connecting lugs on one side. The channel steel hinged plate 5 is divided into left and right, and can be connected to form a whole through the channel steel butt joint pipe to provide a hinged support for the channel steel to adapt to different assembly angles.
[0042] As shown in the figure, the hinged piece 6 is a symmetric fixed two hinged supports, and has two connecting lugs on one side. In this embodiment, when multiple hinged pieces are used to splice with each other, they can be approximately assembled into an arc shape to support the cast-in-place beam flange of the arc shape. Figure 7 As shown in the figure, the double-end spiral support rod 7 comprises a sleeve 71 and support heads 72 inserted into both ends of the sleeve. The sleeve is hollow, and the support heads are threadedly connected in the sleeve, and the distance between the support heads and the sleeve can be controlled by rotating; the head of the support head is a hinged ring.
[0043] Figure 8 Between the two hinged pieces 6 connected with each other, a double-end spiral support rod 7 is arranged, and the two support heads of the double-end spiral support rod are clamped and fixed with the connecting lugs of the two hinged pieces, so that the connection angle between the two hinged pieces is fixed.
[0044] The channel steel hinged plate 5, the hinged piece 6 and the double-end spiral support rod 7 form the flange support main beam. In this embodiment, the beam flange is in an arc shape, and one channel steel hinged plate 5 is arranged at each end of the arc inwardly, multiple hinged pieces 6 are arranged between the two channel steel hinged plates to fit the arc shape, and double-end spiral support rods 7 are arranged between the two hinged pieces and between the channel steel hinged plate and the hinged piece to fix the connection angle between the adjacent two components.
[0045] The channel steel hinged plate 5, the hinged piece 6 and the double-end spiral support rod 7 form the flange support main beam. In this embodiment, the beam flange is in an arc shape, and one channel steel hinged plate 5 is arranged at each end of the arc inwardly, multiple hinged pieces 6 are arranged between the two channel steel hinged plates to fit the arc shape, and double-end spiral support rods 7 are arranged between the two hinged pieces and between the channel steel hinged plate and the hinged piece to fix the connection angle between the adjacent two components.
[0046] The open channel steel 1, the movable support 2, the connecting base 3 and the support rod 4 form the support assembly to support the flange support main beam. In this embodiment, the movable support 2 is hinged to the innermost channel steel hinged plate 5 to support it; two support rods 4 are connected to each connecting base 3, and the top ends of the support rods are connected to the connecting holes of the channel steel hinged plates or the hinged pieces to support them.
[0047] As shown in the figure, the railing 8 comprises a base 81 and a vertical rod 82. The base is a short rod, and the short rod is connected to the open channel steel through the lug fixed on one side edge of the short rod; the vertical rod is sleeved on the railing base. The vertical rod 82 has the same structure as the vertical rod 41. The top end of the vertical rod is inserted with a top rod for closure. Figure 9 The base 81 serves as the socket support point of the vertical rod; the adjacent vertical rods 82 can be connected by a horizontal rod, and the net can be hung to form safety protection. A set of railings are arranged at the two ends of the open channel steel and the ends of the outermost two channel steel hinged plates.
[0048]
[0049] When the upper support and lower support of the support assembly are installed, the wooden blocks are placed on the flange support girder, which serves as a secondary beam to provide additional support. The formwork is laid on the wooden blocks to ensure that the formwork can stably support the entire bridge structure during the pouring of the bridge concrete. After the formwork is installed, the entire system can be put into use for construction.
[0050] When the flange support of the cast-in-place beam is supported by using the support system, the required method steps are as follows:
[0051] 1. Before the construction starts, the lower support is erected, and the stability of the support is ensured.
[0052] 2. The slotted steel is installed on the top support of the lower support, and the position of the slotted steel is adjusted according to the specific construction scheme.
[0053] 3. The movable support, the connecting base and the railing base are installed, the support rod is installed on the connecting base, the length of the support rod is preliminarily adjusted, and the support structure is matched with the structure of the bridge.
[0054] 4. The flange support girder is installed, the angle is adjusted through the hinge and the double-headed screw support rod to match the shape of the flange of the bridge, and the length of the support rod is accurately adjusted to connect the support rod with the to-be-connected holes of the flange support girders, so that the flange support girders are supported.
[0055] 5. The railing upright rod is installed, and the protective net is hung on the railing to ensure the safety of the construction area.
[0056] 6. Finally, the wooden blocks and the formwork are placed to prepare for the pouring of the bridge concrete.
[0057] Example Two
[0058] As shown in the drawings, the cast-in-place beam support system disclosed in the embodiment is for the flange of the cast-in-place beam in the form of a broken line, which is different from the first embodiment in that: Figure 10 The flange support girder in the upper support of the embodiment is two slotted steels, and the two slotted steels are connected by a slotted steel butt joint pipe through a slotted steel hinge plate, the two slotted steel hinge plates are hingedly connected with each other, and a double-headed screw support rod is arranged between the two slotted steel hinge plates to fix the angle.
[0059] Finally, the support rods are connected and fixed with the openings on the components of the flange support girder.
[0060]
[0061] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although in the foregoing embodiments are described in detail, for those skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.
Claims
1. A cast-in-place beam support system comprising a lower support providing a support platform for an upper support, characterised in that: The upper support comprises a support assembly and a flange support girder; The support assembly comprises a base fixed to the top support of the lower support, a plurality of connecting bases fixed to the base, connecting bases connecting support rods, and support rods providing support to the flange support girder; The position of the movable support on the base is adjustable, and the movable support provides limit support to the inner end of the flange support girder; the flange support girder is in shape fit with the flange of the cast-in-place beam.
2. The cast-in-place beam support system of claim 1, wherein: The flange support girder comprises a hinge joint, a hinge piece, and a double-end support rod, one hinge joint is arranged at each end of the flange on one side of the cast-in-place beam, a plurality of hinge pieces are arranged between the two hinge joints to fit the shape of the flange, and a double-end support rod is arranged between the two hinge pieces and between the hinge joint and the hinge piece to fix the connection angle between the two adjacent components.
3. The cast-in-place beam support system of claim 2, wherein: The hinge joint comprises a section of perforated channel steel, one end of the channel steel has a hinge support extending outward, and both sides of the channel steel and the support are provided with two connecting ear plates.
4. The cast-in-place beam support system of claim 2, wherein: The hinge piece is two symmetrically fixed hinge supports, and both sides of the hinge supports are provided with two connecting ear plates.
5. The cast-in-place beam support system of claim 2, wherein: The double-end support rod comprises a sleeve and a support head inserted into both ends of the sleeve; the sleeve is hollow, and the support head is threadedly connected in the sleeve; the head of the support head is a hinge ring.
6. The cast-in-place beam support system of claim 1, wherein: The flange support girder comprises channel steel, a hinge joint, and a double-end support rod, two channel steels are arranged, hinge joints are arranged at the opposite positions of the two channel steels, the two hinge joints are hingedly connected to each other, and a double-end support rod is arranged between the two hinge joints to fix the hinge angle.
7. The cast-in-place beam support system of claim 1, wherein: The movable support comprises a main rod, a fixed seat, and a clamping plate; the top end of the main rod is provided with a hinge hole, the fixed seat comprises a sleeve and a long plate extending to both sides at the bottom end of the sleeve, and a threaded hole is formed at the end of the long plate; the sleeve of the fixed seat is sleeved and fixed on the middle segment of the main rod, the fixed seat is placed on the base, the clamping plate is an L-shaped piece, the vertical segment of the clamping plate is threadedly connected in the hole of the fixed seat from bottom to top, and the horizontal segment clamps the base.
8. The cast-in-place beam support system of claim 1, wherein: The connecting base is fixed on the base, and a pair of clamping ear seats is arranged at both sides of the top end of the connecting base.
9. The cast-in-place beam support system of claim 1, wherein: The support rod comprises a vertical rod and a screw rod; the bottom end of the vertical rod can be clamped by the connecting base, and the screw rod can be inserted into the vertical rod; a hand nut is arranged at the bottom end of the screw rod, the screw rod is inserted into the top end of the vertical rod, the hand nut is pressed on the end of the vertical rod, and the length of the screw rod can be adjusted by rotating the hand nut.