Cross beam connecting device suitable for arch bridge formwork supporting system
The modular design of open I-beam brackets and channel-shaped cover plates solves the problem of difficult control of crossbeam connections in the arch bridge formwork support system, achieving stable connections and efficient construction, reducing costs and improving safety.
Patent Information
- Application Number
- CN202520033968.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-07
AI Technical Summary
In the existing arch bridge formwork support system, the operation of the crossbeam connection device at critical stress positions is not easy to control, which can easily lead to loose connections and misalignment, affecting the stability and safety of the overall support system, and also resulting in high construction costs.
The modular design employs open I-beam supports and channel-shaped cover plates, with limit bolts connecting the beams to ensure stable connections. Steel plates are welded to form a stable structure, making it suitable for arch bridge formwork support systems of different shapes.
It improves the stability and construction efficiency of beam connections, reduces construction costs, enhances the overall structural strength and safety of the arch bridge formwork support system, and is reusable and environmentally friendly.
Smart Images
Figure CN223675127U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to arch bridge construction technical field, concretely relates to a crossbeam connecting device suitable for arch bridge formwork support system. BACKGROUND
[0002] In the design of arch bridge formwork support system, the force crossbeam connecting device plays a vital role. This device is not only responsible for connecting each support force crossbeam structure to form a stable whole, but also undertakes the important task of transmitting and dispersing the load of arch bridge formwork.
[0003] With the continuous development of bridge construction technology, the continuous increase of bridge span and the improvement of load requirements, the requirements of arch bridge formwork support system are also higher and higher, and there cannot be weak links in the key stress position. At present, for large-span, heavy-load arch bridges and other types of bridges, 10# or 12# I-beams are generally used as formwork support system force crossbeams, and adjacent I-beam crossbeams are connected by steel connecting pieces and bolts. The end of this force crossbeam needs to be punched, and the butt joint process is not easy to control and the butt joint part has a serious reduction in stress strength. During construction, damage is easily caused at this part, resulting in loose butt joint, misalignment and other conditions, which even affect the overall support system stress, and even cause the support system to be unstable and collapse. Therefore, it is particularly important to design a crossbeam connecting device suitable for arch bridge formwork support system. This device needs to have good stress performance, can effectively transmit and disperse the load, and also needs to have high stability and reliability to ensure the safety and stability of the entire support system, and is convenient to use and can be reused to reduce construction cost. UTILITY MODEL CONTENTS
[0004] In view of the defects in the above background technology, the utility model provides a crossbeam connecting device suitable for arch bridge formwork support system, which effectively solves the problem of crossbeam connection in arch bridge formwork support system.
[0005] To achieve the above purpose, the utility model provides the following technical scheme:
[0006] The utility model relates to a crossbeam connecting device suitable for arch bridge formwork support system, which comprises an open I-beam support and a groove-shaped cover plate. The inside of the open I-beam support is an upper open "I" shape, and the two sides of the upper outside are symmetrically fixed with fixed grooves. The groove-shaped cover plate is a "H" shape matched with the top of the open I-beam support, and the two sides are inserted into the inside of the fixed groove and connected and fixed by a plurality of limiting bolts threaded on the fixed groove.
[0007] Further, the groove-shaped cover plate is vertically provided with a limiting slot on each side corresponding to the position of the limiting bolt on the fixing slot, and the end of each limiting bolt is embedded in the inside of the corresponding limiting slot.
[0008] Further, the fixing slot is threadedly connected with two limiting bolts, which are respectively positioned on the two sides of the fixing slot.
[0009] Further, the upper side and the lower side of the outer part of the open I-shaped bracket are respectively provided with a plurality of stiffening plates.
[0010] Further, the inner side of the open I-shaped bracket has a size not less than the sectional size of No. 12 I-shaped steel.
[0011] Further, the length of the open I-shaped bracket is 150 mm.
[0012] Further, the open I-shaped bracket, the fixing slot and the groove-shaped cover plate are all welded by steel plates.
[0013] Compared with the prior art, the transverse beam connecting device suitable for the arch bridge formwork support system has the following beneficial effects:
[0014] (1) Simple structure: the connecting device of the utility model adopts modular design, which is simple in structure and easy to process, manufacture and popularize and apply.
[0015] (2) Improved structural stability: the utility model can ensure the firm and stable connection between the stress transverse beams of the formwork support system, which not only enhances the overall structural strength of the arch bridge formwork support system, but also improves the safety during construction.
[0016] (3) Improved construction efficiency: the utility model adopts standardized and modular design, so that the installation and disassembly process is more convenient and fast, which not only improves the construction efficiency and reduces the construction cost, but also reduces the human and material resources investment on the construction site.
[0017] (4) Enhanced flexibility: the utility model is designed flexibly and can adapt to different shapes of arch bridge formwork and support requirements. Whether it is a curved shape, an arc shape or other complex shapes of arch bridge, the precise connection and reinforcement between the stress transverse beams of the formwork support system can be realized by adjusting the position and angle of the connecting device.
[0018] (5) Improved durability: the utility model can adopt high-quality materials and advanced anti-corrosion and anti-rust technology, which can maintain stable performance for a long time in harsh construction environment, reduce performance degradation and safety hazards caused by corrosion or wear.
[0019] (6) Reusability: This utility model adopts a detachable design, which can be easily disassembled and cleaned after construction, so as to facilitate the next use. This not only reduces construction costs, but also meets the requirements of environmental protection and sustainable development.
[0020] (7) Wide applicability: This utility model is applicable to different types of arch bridge formwork support systems. It has strong versatility and adaptability. Whether it is a traditional arch bridge or a modern arch bridge, the connecting device can be used to build and reinforce the formwork support system. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0022] Figure 2 This is a side view of the present invention;
[0023] Figure 3 This is a top view of the present invention;
[0024] Figure 4 This is a front view of the present invention;
[0025] Figures 5-7 They are respectively Figure 4 Node diagram of nodes A, B, and C;
[0026] In the diagram: 1. Open I-beam support; 2. Reinforcing plate; 3. Fixing slot; 4. Limiting bolt; 5. Slotted cover plate; 51. Limiting slot. Detailed Implementation
[0027] 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 skilled in the art without creative effort are within the scope of protection of the present utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this disclosure pertains. The terms "upper," "lower," "left," "right," "front," "back," "inner," and "outer" used in the present patent application specification and claims are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. Any aspects not detailed in the present utility model are well-known technologies to those skilled in the art.
[0028] like Figures 1-7As shown, the application provides a beam connecting device suitable for arch bridge formwork support system, which comprises an open I-shaped bracket 1 and a groove-shaped cover plate 5; the inner side of the open I-shaped bracket 1 is in the shape of an "I" with the upper part being open, and the upper outer sides of the two sides are respectively and symmetrically provided with fixed notches 3; the groove-shaped cover plate 5 is in the shape of a "H" which is matched with the top of the open I-shaped bracket 1, and the two sides are respectively inserted into the inner sides of the fixed notches 3 and are connected and fixed through the limiting bolts 4 which are threadedly connected on the fixed notches 3.
[0029] In the embodiment, the limiting notches 51 are vertically provided on the outer sides of the groove-shaped cover plate 5 corresponding to the positions of the limiting bolts 4 on the fixed notches 3, and the ends of the limiting bolts 4 are respectively embedded into the inner sides of the corresponding limiting notches 51, which can effectively limit the cover plate of the connecting device and ensure the stability of the formwork support system at the joint of the force beam.
[0030] In the embodiment, the limiting bolts 4 which are threadedly connected on the fixed notches 3 are two and are respectively positioned at the two sides of the fixed notches 3.
[0031] In the embodiment, the upper side and the lower side of the outer side of the open I-shaped bracket 1 are respectively provided with a plurality of reinforced plates 2, which can effectively strengthen the stress intensity and rigidity of the formwork support system at the joint of the force beam.
[0032] In the embodiment, the inner side size of the open I-shaped bracket 1 is not less than the cross-sectional size of No. 12 I-shaped steel, and is preferably slightly larger than No. 12 I-shaped steel, so that the commonly used support system force beams of No. 12 I-shaped steel, No. 10 I-shaped steel and the following models can use the device.
[0033] In the embodiment, the length of the open I-shaped bracket 1 is 150 mm.
[0034] In the embodiment, the open I-shaped bracket 1, the reinforced plate 2, the fixed notch 3 and the groove-shaped cover plate 5 are all welded by steel plates, which is convenient for material taking and modular production of each part, and ensures the stability of each part and the whole device.
[0035] As shown, the production and application of a beam connecting device with a length of 150 mm are taken as an example for illustration: Figures 1-7
[0036] Step one: 11 steel plates with different cross-sectional sizes and a length of about 150 mm and a thickness of about 10 mm are welded to form the open I-shaped bracket 1 of the device, the cross-sectional size of the bracket is slightly larger than No. 12 I-shaped steel, the length of the formed component is about 150 mm, and all the welds need to be fully welded.
[0037] Step two: fabricate the stiffened plate 2, a total of 12 pieces for each connecting device, with a thickness of about 12 mm, located at both ends of the upper and lower flange plates and the middle part of the open I-shaped support 1. All the connecting surfaces between the stiffened plates and the open I-shaped support 1 need to be fully welded, serving as the reinforcing plate of the connecting device.
[0038] Step three: weld two steel strips with a length of 150 mm and four steel strips with a length of 20 mm, thickness of 6 mm and width of 30 mm to form two identical fixed notches 3, and then fix and weld them on the upper flange plate of the open I-shaped support 1 at the upper position on both sides. All the welds need to be fully welded, and the width of the formed notch is 20 mm on each side. Limit bolt holes are also drilled at both ends of the fixed notch 3.
[0039] Step four: weld a steel plate with a thickness of about 8 mm, a length of about 147 mm, and a width of about 10 mm wider than the upper opening of the open I-shaped support 1, and two steel plates with a thickness of about 8 mm, a length of about 147 mm, and a width of 30 mm to form a groove-shaped cover plate 5. All the welds need to be fully welded, and four limit notches 51 with a depth of about 4 mm are drilled at the corresponding positions of the limit bolt holes at both ends of the fixed notch 3.
[0040] Step five: insert the open I-shaped support 1 (including the stiffened plate 2 and the fixed notch 3 welded integrally) of the device from one end of the formwork support system, then insert the crossbeam connected to the load-bearing I-shaped steel crossbeam into the connecting device, and then adjust the position of the connecting device to the center of the two crossbeams.
[0041] Step six: cover the groove-shaped cover plate 5 of the connecting device, and insert it into the fixed notch 3 on both sides.
[0042] Step seven: adjust the height and position of the groove-shaped cover plate 5 according to the height of the load-bearing I-shaped steel crossbeam of the support system, then screw in the limit bolt 4 at the four limit bolt hole positions, and tighten it.
[0043] Step eight: connect the joints of other load-bearing I-shaped steel crossbeams of the formwork support system, and repeat steps one to seven.
Claims
1. A beam connecting device suitable for use in an arch bridge formwork support system, characterized in that, It includes open I-shaped support (1) and groove cover plate (5); The inside of the open I-shaped support (1) is upper open "I" shape, and the two sides of the upper outside are respectively fixed with fixed slots (3); The groove cover plate (5) is "H" shape which is matched with the top of the open I-shaped support (1), and the two sides are respectively inserted into the inside of the fixed slots (3), and are connected and fixed by the limiting bolts (4) which are screwed on the fixed slots (3).
2. The beam connecting device for the arch bridge formwork support system according to claim 1, wherein, The outside of the groove cover plate (5) is vertically provided with limiting slots (51) on the corresponding positions of the limiting bolts (4) on the fixed slots (3), and the ends of the limiting bolts (4) are respectively embedded into the inside of the corresponding limiting slots (51).
3. The beam connecting device for use in an arch bridge formwork support system according to claim 2, wherein, The limiting bolts (4) which are screwed on the fixed slots (3) are two, and are respectively located on the two sides of the fixed slots (3).
4. The beam connecting device for use in an arch bridge formwork support system according to claim 1, wherein, The upper side and the lower side of the outside of the open I-shaped support (1) are respectively provided with multiple reinforcing plates (2).
5. The beam connector for use in an arch bridge formwork support system according to claim 1, wherein, The inside size of the open I-shaped support (1) is not less than the section size of No. 12 I-shaped steel.
6. The beam connector for use in an arch bridge formwork support system according to claim 1, wherein, The length of the open I-shaped support (1) is 150mm.
7. The beam connector for use in an arch bridge formwork support system according to claim 1, wherein The open I-shaped support (1), the fixed slots (3) and the groove cover plate (5) are all welded by steel plates.