A combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing

Abstract

This invention discloses a combined system of steel structure platform and disc-lock scaffolding for cast-in-place arch beams spanning rivers. The system includes: a steel structure platform comprising a top support platform and multiple columns at the bottom; the two sides of the support platform are fixed to the foundation piers already constructed; and the upper and lower ends of the columns are fixedly connected to the support platform or to the completed foundation in the river; and disc-lock scaffolding, which is fixed to the steel pipe platform by the bottom of its uprights, with the top of the uprights supporting the bottom formwork for positioning the arch beam construction. This invention achieves both stability and simplicity in the arch beam construction support system through the combination of the steel structure platform and the disc-lock scaffolding.

Description

Technical Field

[0001] This invention relates to the field of bridge construction support platform technology. More specifically, this invention relates to a combined system of a steel structure platform and a disc-lock scaffolding for cast-in-place arch beams spanning rivers. Background Technology

[0002] When constructing cast-in-place arch beams during the dry season, the scaffolding is directly erected on the river surface, or the river surface is simply hardened before the scaffolding is erected. Such scaffolding construction systems may have problems such as poor stability and large scaffolding structures. Therefore, this application provides a combination system of steel structure platform and disc-lock scaffolding for cast-in-place arch beams crossing rivers to solve some of the defects of existing simple scaffolding construction. Summary of the Invention

[0003] One objective of this invention is to provide a combined system of steel structure platform and disc-lock scaffold for cast-in-place arch beams spanning rivers. By combining the steel structure platform and disc-lock scaffold, the stability and simplicity of the arch beam construction support system are achieved.

[0004] To achieve these objectives and other advantages according to the present invention, a combined system of steel structure platform and disc-lock scaffolding for cast-in-place arch beams spanning rivers is provided, comprising: a steel structure platform including a top support platform and multiple columns at the bottom, the two sides of the support platform being fixed to the foundation of the completed pier columns, and the upper and lower ends of the columns being fixedly connected to the support platform and the completed foundation on the river surface, respectively; and disc-lock scaffolding, which is fixed to the support platform by the bottom of the uprights, the top of the uprights of the disc-lock scaffolding being used to support the bottom formwork for positioning the arch beam construction.

[0005] Preferably, the support platform is composed of multiple steel plates connected by welding or bolts to form a whole.

[0006] Preferably, a supporting steel plate is pre-embedded on the support platform, which is connected to the supporting platform as a whole by welding or bolting.

[0007] Preferably, a connecting steel plate is pre-embedded on the foundation at the position corresponding to the column, and a connecting steel ring is provided around the bottom of the column, which is connected to the connecting steel plate as a whole by connecting bolts.

[0008] Preferably, the bottom end of the connecting bolt is integrally connected to a positioning rod, which includes an integrally formed upper frustum shape and a lower cone shape, and the outer periphery of the positioning rod is formed into a mace shape.

[0009] Preferably, the tops of the uprights in the same row of the disc buckle bracket in the transverse direction are connected as one piece by I-beams. An adjusting steel plate is welded to the top of each upright on the I-beam. The thickness of the adjusting steel plate is adjustable. The adjusting steel plate is provided with an installation groove, which can just accommodate the supporting cross timber of the bottom formwork required for the construction of the arch beam.

[0010] Preferably, the disc buckle bracket is an arched structure assembled from vertical and horizontal bars in an interlaced manner. The vertical bars and horizontal bars are detachably connected by connecting discs, and the vertical bars are also detachably connected to each other. One connection point of the vertical bar is assembled and connected to eight horizontal bars as a whole.

[0011] Preferably, each of the uprights is provided with a flange, and the uprights are tightly attached to each other and bolted together. The bottom end of the upright of the disc buckle bracket is tightly attached to the top surface of the support platform through a flange and connected together with fixing bolts.

[0012] Preferably, the upright is provided with a connecting plate, which has eight connecting through holes evenly spaced around its circumference, corresponding to eight crossbars. A fixing block is integrally fixed to the end of each crossbar for detachable and fixed connection with the connecting plate. The fixing block is a U-shaped structure with its opening facing the connecting plate and precisely enclosing the connecting plate. The top block of the fixing block has a through sliding groove, within which a sliding block is fitted. The sliding block is driven by a telescopic hydraulic cylinder to move horizontally only along the sliding groove. The telescopic hydraulic cylinder and the sliding block are slidably hinged. The sliding block is concave upwards to form a receiving groove, within which a connecting block is fitted. The side of the connecting block facing the upright is hinged to the side of the receiving groove. When the connecting block rotates from the receiving groove to a vertical position, its lower side facing the outside of the upright forms a retaining groove, with a limiting plate hinged to its lower inner end. The connecting through hole of the connecting plate has an upwardly inclined limiting channel that cooperates with the limiting plate on its lower side facing the outside of the upright. The limiting channel extends towards the connecting through hole and is provided with an inclined baffle.

[0013] Preferably, the upright is also provided with an auxiliary plate, which has eight limiting posts arranged circumferentially and corresponding to eight connecting through holes. The limiting posts are L-shaped. The bottom block of the fixing block has a channel through which the limiting posts pass. When the auxiliary plate moves upward to be close to the bottom surface of the fixing block, the limiting posts are precisely engaged in the connecting through holes. The upright is provided with a pair of threads, and a large nut is engaged thereon. The large nut is located below the auxiliary plate. The bottom surface of the auxiliary plate is provided with multiple buckles for engaging the fixing bolts.

[0014] The present invention has at least the following beneficial effects:

[0015] 1. This invention combines a steel platform with a disc-lock scaffold to form a support system for arch beam construction. The steel platform is supported on the river surface, and the disc-lock scaffold is erected on the steel platform. The overall stability is good, and the entire support system is simpler than a full-span scaffold.

[0016] 2. The steel structure platform of the present invention is supported on both sides of the completed pier foundation, which reduces the number of steel structure platform columns. In addition, the columns are supported on the hardened foundation, and the columns are stably supported on the foundation through the set fixing method, so as to realize the erection and stable support of the upper disc buckle bracket.

[0017] 3. The top of the upright of the disc buckle bracket of the present invention can adjust the height of the supporting crossbeam of the bottom template installed above by setting a method, thereby adjusting the shape of the bottom template and thus adjusting the shape of the arch beam to meet the set requirements.

[0018] 4. The uprights and crossbars of the disc buckle bracket of the present invention are fixedly connected by a connecting disc, a fixing block and an auxiliary disc, which has the advantages of convenient connection and firmness.

[0019] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the top structure of the upright pole of the present invention;

[0022] Figure 3 This is a first state diagram of the fixing block of the present invention;

[0023] Figure 4 This is a second state diagram of the fixing block of the present invention;

[0024] Figure 5 This is the third state diagram of the fixing block of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Foundation, 2. Supporting platform, 3. Column, 4. Foundation, 5. Upright pole, 6. Horizontal bar, 7. Supporting steel plate, 8. Connecting steel plate, 9. Connecting steel ring, 10. Connecting bolt, 11. Positioning rod, 12. I-beam, 13. Adjusting steel plate, 14. Mounting groove, 15. Connecting plate, 16. Flange, 17. Fixing bolt, 18. Connecting through hole, 19. Fixing block, 20. Sliding block, 21. Telescopic cylinder, 22. Receiving groove, 23. Connecting block, 24. Limiting plate, 25. Limiting channel, 26. Auxiliary plate, 27. Limiting post, 28. Large nut. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0028] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are all conventional methods, and the reagents and materials described are all commercially available unless otherwise specified. In the description of this invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] like Figure 1 As shown, the present invention provides a combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing, comprising:

[0030] The steel structure platform includes a top support platform 2 and multiple columns 3 at the bottom. The two sides of the support platform 2 are fixed to the pier foundation 1 that has been completed. The upper and lower ends of the columns 3 are respectively fixed to the support platform 2 and the foundation 4 that has been completed on the surface of the river.

[0031] The disc-lock bracket is fixed to the support platform 2 by the bottom of the upright 5. The top of the upright 5 of the disc-lock bracket is used to support the bottom formwork for the construction of the positioning arch beam.

[0032] The support platform 2 is composed of multiple steel plates connected by welding or bolts.

[0033] The support plate 7 is pre-embedded on the support platform 1, and it is connected to the support platform 2 as a whole by welding or bolting.

[0034] In the above technical solution, during the construction of the pier foundation, a supporting steel plate 7 is pre-embedded on the top side of the pier cap 1. This plate is mainly used for fixing and connecting the supporting platform 2. First, the foundation 4 is constructed, and then the columns 3 are fixedly installed on the foundation 4 according to construction requirements. Then, the steel plates are welded or bolted together on the columns 3 to form an integral supporting platform 2. When the supporting platform 2 extends onto the supporting steel plate 7, the two are tightly attached and connected by welding or pre-set bolt holes, completing the construction of the entire steel structure platform. After the steel structure platform is completed, a modular scaffold is erected on it, or the modular scaffold is pre-erected into several parts, assembled on the steel structure platform, and fixedly connected to the steel structure platform to form an integrated steel structure platform and modular scaffold combination system.

[0035] In another technical solution, a connecting steel plate 8 is pre-embedded on the foundation 4 at the position corresponding to the column 3. A connecting steel ring 9 is arranged around the bottom periphery of the column 3, and it is connected to the connecting steel plate 8 as a whole by connecting bolts 10. A positioning rod 11 is integrally connected to the bottom end of the connecting bolt 10, which includes an integrally formed upper frustum shape and a lower conical shape, and the outer periphery of the positioning rod 11 is formed into a spiked club shape.

[0036] In the above technical solution, the foundation 4 is generally a concrete structure with underlying gravel and other structures, while the column 3 is a steel structure. Therefore, the column 3 and the foundation 4 are connected by pre-embedded connecting steel plates 8 within the foundation 4, and bolted together. Alternatively, for a more secure connection, welding can be performed simultaneously. To further enhance the connection strength between the column 3 and the foundation 4, a positioning rod 11 is provided at the bottom of the connecting bolt 10. The conical bottom of the positioning rod 11 smoothly enters the foundation 4 for embedding and fixation. The diameter of the positioning rod 11 increases sequentially upwards. Even if the positioning rod 11 has some loosening against the foundation 4, it continues downwards, filling the foundation 4 with its larger diameter surface. The surface of the positioning rod 11 is designed in the form of a mace, i.e., multiple circumferentially protruding conical shapes, thus enabling it to smoothly penetrate deep into the foundation 4.

[0037] In another technical solution, such as Figure 2 As shown, the tops of the uprights 5 in the same row of the horizontal bridge direction of the disc buckle bracket are connected as one piece by I-beams 12. An adjusting steel plate 13 is welded to the top of each upright 5 on the I-beams 12. The thickness of the adjusting steel plate 13 is adjustable. An installation groove 14 is provided on the adjusting steel plate 13, which can just accommodate the supporting cross timber of the bottom formwork required for the construction of the arch beam.

[0038] In the above technical solution, the disc-lock scaffolding may experience some unexpected positional deviations during installation, which will also lead to corresponding deviations when installing the upper formwork, thus affecting the shape of the arch beam. Therefore, after the disc-lock scaffolding is installed, multiple I-beams 12 are first welded to the uprights 5 along the transverse direction of the bridge. The height of each I-beam 12 is monitored and compared with the set alignment height. Then, depending on the deviation, adjusting steel plates 13 of different thicknesses are welded to the I-beams 12, or no adjusting steel plates 13 are set, and the upper mounting groove 14 is directly welded.

[0039] In another technical solution, the disc-lock bracket is an arched structure assembled from vertical and horizontal bars 5 in a crisscross pattern. The vertical bars 5 and horizontal bars 6 are detachably connected via connecting plates 15, and the vertical bars 5 are also detachably connected to each other. One connection point of each vertical bar 5 is assembled with eight horizontal bars 6 to form a single unit. This is a conventional disc-lock bracket structure, where the vertical bars 5 are assembled vertically, and the horizontal bars 6 are sequentially connected via connecting plates 15 on the vertical bars 5.

[0040] In another technical solution, such as Figure 4 As shown, each end of the upright 5 is provided with a flange 16, and the uprights 5 are tightly attached to each other and bolted together through the flange 16. The bottom end of the upright 5 of the disc buckle bracket is tightly attached to the top surface of the support platform 2 through the flange 16 and connected together through the fixing bolts 17.

[0041] In another technical solution, such as Figures 3 to 5 As shown, a connecting plate 15 is provided on the upright 5, with eight connecting through holes 18 evenly spaced around its circumference, corresponding to eight crossbars 6. A fixing block 19 is integrally fixed to the end of each crossbar 6, which is used for detachable and fixed connection with the connecting plate 15. The fixing block 19 has a U-shaped structure with its opening facing the connecting plate 15 and precisely enclosing the connecting plate 15. The upper top block of the fixing block 19 is provided with a through sliding groove, within which a sliding block 20 is fitted. The sliding block 20 is driven by a telescopic cylinder 21 to move horizontally only along the sliding groove. The upper concave part forms a receiving groove 22, in which a connecting block 23 is fitted. The side of the connecting block 23 facing the upright 5 is hinged to the side of the receiving groove 22. When the connecting block 23 rotates from the receiving groove 22 to a vertical position, the lower part of its side facing the outside of the upright 5 forms a retaining groove. A limiting plate 24 is hinged to its lower end. The connecting through hole 18 of the connecting disc 15 is provided with an upwardly inclined limiting channel 25 that cooperates with the limiting plate 24 on the lower part of its side facing the outside of the upright 5. An inclined baffle is provided on the limiting channel 25 extending towards the connecting through hole 18.

[0042] In the above technical solution, the traditional disc buckle bracket usually uses a C-shaped fixing block 19 and a connecting through hole 18 directly connected by a pin or other means to achieve detachable fixing. This method has many parts, is inconvenient to store, and is easy to lose. In addition, it requires multiple assembly steps. Therefore, it is necessary to set up a fixing block 19 for connection that is convenient and quick to assemble and disassemble. Most importantly, it does not require additional small parts. The automatic structure on the crossbar 6 and the upright 5 can complete the assembly and disassembly. The limiting plate 24 is hinged in the slot. By setting an elastic connection, the limiting plate 24 can only rotate to a certain angle outside the slot. The included angle between the limiting plate 24 and the slot is an acute angle. In the initial state, the limiting plate 24 rotates out of the slot, and the connecting block 23 also rotates out of the receiving groove 22. At this time, by moving the fixing block 19 toward the corresponding position of the connecting plate 15, during the movement, under the pressing action of the connecting plate 15, the limiting plate 24 rotates upward and retracts into the slot due to its own weight and external force. The connecting block 23 also rotates into the receiving groove 22. Figure 3 The state shown is as follows. The space within the fixed block 19 contains the sliding trajectory of the sliding block 20. Under its own weight, the connecting block 23 rotates downwards until it reaches a vertical position within the connecting through hole 18. At this time, the limiting plate 24 also rotates outwards under its own weight and is precisely limited by the inclined baffle. Figure 4 The state is shown. The telescopic cylinder 21 extends, pushing the sliding block 20 to move horizontally outward. At this time, the limiting plate 24 moves into the limiting channel 25 and moves obliquely upward, pushing the sliding block 20 to move upward as well. The telescopic cylinder 21 and the sliding block 20 are slidably connected, without affecting the action of the telescopic cylinder 21. Figure 5 The state shown achieves the connection between the fixing block 19 and the connecting plate 15 without requiring additional parts. The maximum outward rotation angle of the limiting plate 24 is the acute angle shown in the figure, not exceeding 45 degrees. When disassembling, the retractable telescopic cylinder 21 first returns to its original position. Figure 4 The state shown is then retracted, and the connecting block 23 and the limiting plate 24 are pulled upwards back to the starting position. Figure 3 As shown in the diagram, the connecting block 23 is not located directly below the connecting through hole 18.

[0043] In another technical solution, the upright 5 is also provided with an auxiliary disk 26, which has eight limiting posts 27 arranged circumferentially and corresponding to eight connecting through holes 18. The limiting posts 27 are L-shaped. The bottom block of the fixing block 19 has a channel through which the limiting posts 27 pass. When the auxiliary disk 26 moves upward to be close to the bottom surface of the fixing block 19, the limiting posts 27 are exactly engaged in the connecting through holes 18. The upright 5 is provided with a pair of threads, which are fitted with a large nut 28. The large nut 28 is located below the auxiliary disk 26. The bottom surface of the auxiliary disk 26 is provided with multiple buckles for engaging the fixing bolts 17.

[0044] In the above technical solution, the auxiliary disk 26 and its limiting post 27 further fix the fixing block 19, and the upward movement of one auxiliary disk 26 can simultaneously fix eight fixing blocks 19, making the operation convenient and simple. The auxiliary disk 26 is fixed to the upright 5 by a large nut 28 and threaded engagement. When removing it, simply loosen the large nut 28 and fix it to the thread below to achieve the positioning of the auxiliary disk 26 when not in use. The fixing bolts 17 connecting the uprights 5 are engaged with the auxiliary disk 26, eliminating concerns about the loss of parts and facilitating storage and installation. The upper limiting post 27 of the auxiliary disk 26 can also apply an upward pushing force to the connecting block 23 during removal, assisting it to return to the receiving groove 22.

[0045] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing, characterized in that, include: The steel structure platform includes a top support platform and multiple columns at the bottom. The two sides of the support platform are fixed to the foundation of the completed pier column. The upper and lower ends of the columns are respectively fixed to the support platform and the completed foundation on the surface of the river. The disc-lock bracket is fixed to the support platform by the bottom of the uprights, and the top of the uprights of the disc-lock bracket is used to support the bottom formwork for the construction of the positioning arch beam; The disc buckle bracket is an arched structure assembled from vertical and horizontal bars in an interlaced manner. The vertical bars and horizontal bars are detachably connected by connecting discs. The vertical bars can also be detachably connected to each other. One connection point of the vertical bar is assembled and connected to eight horizontal bars as a whole. The upright is equipped with a connecting plate with eight connecting through holes evenly spaced around its circumference, corresponding to eight crossbars. A fixing block is integrally fixed to the end of each crossbar for detachable connection with the connecting plate. The fixing block is a U-shaped structure with its opening facing the connecting plate and precisely enclosing it. The top of the fixing block has a through sliding groove, within which a sliding block is fitted. The sliding block is driven by a telescopic cylinder to move horizontally only along the sliding groove. The telescopic cylinder and the sliding block are slidably hinged. The sliding block is concave upwards to form a receiving groove, within which a connecting block is fitted. The side of the connecting block facing the upright is hinged to the side of the receiving groove. When the connecting block rotates from the receiving groove to a vertical position, its lower side facing the outside of the upright forms a retaining groove, with a limiting plate hinged to its lower inner end. The connecting through hole of the connecting plate has an upwardly angled limiting channel that cooperates with the limiting plate on its lower side facing the outside of the upright. The limiting channel extends towards the connecting through hole and is equipped with an inclined baffle. The upright is also equipped with an auxiliary plate, which has eight limiting posts arranged circumferentially and corresponding to eight connecting through holes. The limiting posts are L-shaped. The bottom block of the fixing block has a channel through which the limiting posts pass. When the auxiliary plate moves upward to be close to the bottom surface of the fixing block, the limiting posts are precisely engaged in the connecting through holes. The upright is equipped with a pair of threads, on which a large nut is fitted. The large nut is located below the auxiliary plate. The bottom surface of the auxiliary plate is equipped with multiple buckles for engaging the fixing bolts.

2. The combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing as described in claim 1, characterized in that, The support platform is composed of multiple steel plates connected by welding or bolts.

3. The combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing as described in claim 1, characterized in that, The support platform is pre-embedded with a supporting steel plate, which is connected to the support platform as a whole by welding or bolting.

4. The combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing as described in claim 1, characterized in that, A connecting steel plate is pre-embedded on the foundation at the position corresponding to the column. A connecting steel ring is provided around the bottom of the column, and it is connected to the connecting steel plate as a whole by connecting bolts.

5. The combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing as described in claim 4, characterized in that, The bottom end of the connecting bolt is integrally connected to a positioning rod, which includes an integrally formed upper frustum shape and a lower cone shape, and the outer periphery of the positioning rod is formed into a mace shape.

6. The combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing as described in claim 1, characterized in that, The tops of the uprights in the same row of the disc buckle bracket are connected as one piece by I-beams. An adjusting steel plate is welded to the top of each upright on the I-beam. The thickness of the adjusting steel plate is adjustable. The adjusting steel plate is provided with an installation groove, which can just accommodate the supporting cross timber of the bottom formwork required for the construction of the arch beam.

7. The combined system of cast-in-place arch beam steel structure platform and disc-lock scaffolding for river crossing as described in claim 1, characterized in that, Each of the uprights is equipped with a flange at its end. The uprights are connected to each other by flanges and bolts. The bottom end of the upright of the disc buckle bracket is connected to the top surface of the support platform by flanges and fixing bolts.

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