Punching-free supporting device for large-span beam base plate formwork

Abstract

The utility model discloses a punching-free supporting device for large-span beam base plate formworks, which comprises a plurality of formwork fixing mechanisms at the tops of two base plate formworks, the formwork fixing mechanisms are used for supporting the two base plate formworks, a protective wall is arranged on one side of each base plate formwork, a plurality of expansion joints are formed in each protective wall, and the expansion joints are connected with the formwork fixing mechanisms. A protective wall supporting mechanism is arranged between the multiple formwork fixing mechanisms and the protective wall and comprises multiple side plate supporting assemblies arranged on the sides, close to the protective wall, of the multiple formwork fixing mechanisms correspondingly. The first protective wall fixing assembly is arranged at the position of the expansion joint; the second protective wall fixing assembly is arranged on the protective wall; and the connecting and supporting assembly is arranged between the first protective wall fixing assembly and the second protective wall fixing assembly, the multiple first fixing bases and the multiple second fixing bases are connected together through second telescopic screws, the stability of the supporting mechanism is improved, and therefore the side plates can more stably support the base plate formwork.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of railway bridge construction, and particularly relates to a large-span beam base plate formwork hole-free supporting device. BACKGROUND

[0002] In bridge construction, especially before concrete pouring, a flat and stable foundation is needed to support the entire structure, and the base plate formwork can provide a stable construction platform, and the base plate formwork can withstand various forces generated during the construction process to ensure the stability and safety of the construction process. When the base plate formwork is installed, in order to prevent the base plate formwork from moving during pouring, a supporting device needs to be used to support the base plate formwork on the protective wall.

[0003] However, in the process of implementing the related technical solutions, at least the following technical problems are found: when supporting the base plate formwork, a limiting clamp is used to fix the supporting device in the expansion joint to prevent the use of a pull rod to drill holes for reinforcement. However, when a large-span steel beam is constructed, the distance between the two expansion joints on the protective wall is large, and the distance between the supporting devices is long, so the base plate formwork cannot be effectively supported, affecting the stability of the base plate formwork. CONTENT OF THE INVENTION

[0004] The present application provides a large-span beam base plate formwork hole-free supporting device, which solves the problem of low stability of the supporting device at the expansion joint position of the large-span steel beam in the prior art, and achieves the effect of improving stability by setting the supporting devices connected to each other at the expansion joint position and on the protective wall.

[0005] The application provides a large-span beam base plate formwork hole-free supporting device, which comprises a plurality of formwork fixing mechanisms at the top of two base plate formworks, the plurality of formwork fixing mechanisms are used for supporting the two base plate formworks, one side of the base plate formwork is provided with a protective wall, a plurality of expansion joints are arranged on the protective wall, protective wall supporting mechanisms are arranged between the plurality of formwork fixing mechanisms and the protective wall, the protective wall supporting mechanism comprises a plurality of side plate supporting assemblies, which are arranged on one side of the plurality of formwork fixing mechanisms close to the protective wall and are used for supporting and fixing the formwork fixing mechanisms, a first protective wall fixing assembly is arranged at the position of the expansion joint, and the first protective wall fixing assembly is used for fixing the side plate supporting assembly at the position of the expansion joint on the protective wall, a second protective wall fixing assembly is arranged on the protective wall, and the second protective wall fixing assembly is used for fixing the side plate supporting assembly at the position of the protective wall which is not provided with the expansion joint, and a connecting supporting assembly is arranged between the first protective wall fixing assembly and the second protective wall fixing assembly, and the connecting supporting assembly is used for fixing the first protective wall fixing assembly and the second protective wall fixing assembly or two second protective wall fixing assemblies together.

[0006] Further, the plurality of formwork fixing mechanisms comprise a top plate arranged at the top of the two base plate formworks, two side plates arranged on the two sides of the bottom of the top plate, and the side plates are arranged on the outer sides of the base plate formworks, a threaded rod threadedly connected to the side plates, a clamping block arranged on one side of the threaded rod close to the base plate formwork, and a pad plate arranged between the clamping block and the base plate formwork.

[0007] Further, the first protective wall fixing assembly comprises a first fixing seat arranged at the position of the expansion joint on the protective wall, two limiting clamps symmetrically arranged on one side of the first fixing seat, and the two limiting clamps are arranged inside the expansion joint, and a limiting pad block arranged between the bending portion of one end of the limiting clamp and the protective wall.

[0008] Further, the second protective wall fixing assembly comprises a second fixing seat arranged at the position of the protective wall which is not provided with the expansion joint, and a plurality of first fixing seats and a plurality of second fixing seats are arranged at equal intervals, a protective wall fixing piece arranged at the top of the protective wall, and the protective wall fixing piece is fixedly connected with the second fixing seat, and a bolt arranged on one side of the protective wall fixing piece away from the formwork fixing mechanism.

[0009] Further, the side plate supporting assembly comprises two third fixing bases arranged on the top plate and the side plate respectively and close to one side of the protective wall, a first telescopic screw rod arranged between the third fixing base and the first fixing base or the second fixing base, and a first pin key connected to both ends of the first telescopic screw rod.

[0010] Further, the top of the first fixing base and the second fixing base is provided with a through slot, and the connecting supporting assembly comprises a plurality of second telescopic screw rods arranged between the first fixing base and the second fixing base or between two second fixing bases, and both ends of the first fixing base extend into the inside of the through slot, and a second pin key connected to both ends of the first fixing base, and the second pin key is in contact with the inside of the first fixing base or the second fixing base.

[0011] The technical scheme provided by the present application has at least the following technical effects or advantages:

[0012] The base plate template is supported by the clamping block and the backing plate driven by the threaded rod, the first fixing base and the second fixing base are fixed at the expansion joint of the protective wall and other positions by the limiting fixture and the protective wall fixing piece, the top plate and the side plate are supported by the two first telescopic screw rods, the plurality of first fixing bases and the second fixing bases are connected together by the second telescopic screw rod, and the stability of the supporting mechanism is improved, so that the side plate can more stably support the base plate template, and the base plate template is prevented from moving during pouring. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the supporting device in the embodiment of the present application.

[0014] Figure 2 It is a structure schematic view of the protective wall supporting mechanism in the embodiment of the present application.

[0015] Figure 3 It is a plane structure schematic view of the supporting device in the embodiment of the present application.

[0016] In the figure: 10, base plate template; 20, protective wall; 30, template fixing mechanism; 40, protective wall supporting mechanism; 31, top plate; 32, side plate; 33, threaded rod; 34, clamping block; 35, backing plate; 41, first protective wall fixing assembly; 42, second protective wall fixing assembly; 43, side plate supporting assembly; 44, connecting supporting assembly; 411, first fixing seat; 412, limiting clamp; 413, limiting pad; 421, second fixing seat; 422, protective wall fixing piece; 423, bolt; 431, third fixing seat; 432, first telescopic screw; 433, first pin key; 441, second telescopic screw; 442, second pin key. DETAILED DESCRIPTION

[0017] The embodiment of the present application discloses a large-span beam base plate template hole-free supporting device, the first fixing seat 411 and the second fixing seat 421 or the two second fixing seats 421 are supported by the second telescopic screw 441, so that the plurality of first fixing seats 411 and the second fixing seats 421 are connected together, so that the protective wall supporting mechanism 40 forms an integral whole, the stability of the protective wall supporting mechanism 40 to the side plate 32 is improved, and the base plate template 10 supported by the side plate 32 does not appear the phenomenon of mold rising during concrete pouring.

[0018] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings of the specification and the specific embodiments.

[0019] Please refer to Figure 1 and Figure 2 , the embodiment provides a large-span beam base plate template hole-free supporting device, which comprises a plurality of template fixing mechanisms 30 on the top of two base plate templates 10, the plurality of template fixing mechanisms 30 are used for supporting the two base plate templates 10, and the plurality of template fixing mechanisms 30 comprise a top plate 31, a side plate 32, a threaded rod 33, a clamping block 34 and a backing plate 35. The top plate 31 is arranged on the top of the two base plate templates 10, the two side plates 32 are arranged on the two sides of the bottom of the top plate 31, and the side plates 32 are arranged on the outer sides of the base plate templates 10. The threaded rod 33 is threadedly connected to the side plate 32, the clamping block 34 is arranged on the side of the threaded rod 33 close to the base plate template 10, and the backing plate 35 is arranged between the clamping block 34 and the base plate template 10. The top plate 31 and the two side plates 32 are arranged on the top and bottom of the two base plate templates 10, and the rotation of the threaded rod 33 drives the clamping block 34 to move, so that the backing plate 35 is abutted to the position in contact with the base plate template 10. The clamping block 34 and the backing plate 35 can support the outer sides of the base plate templates 10, so as to prevent the base plate templates 10 from moving randomly during concrete pouring.

[0020] Please refer to Figure 1 , Figure 2 andFigure 3 The base plate template 10 is provided with a protective wall 20 on one side, the protective wall 20 is provided with geotextile, the protective wall 20 has a plurality of expansion joints, a plurality of template fixing mechanisms 30 and the protective wall 20 are provided with a protective wall supporting mechanism 40, the protective wall supporting mechanism 40 comprises a first protective wall fixing assembly 41, a second protective wall fixing assembly 42, a side plate supporting assembly 43 and a connecting supporting assembly 44, a plurality of side plate supporting assemblies 43 are respectively arranged on one side of the plurality of template fixing mechanisms 30 close to the protective wall 20, and the side plate supporting assembly 43 is used for supporting and fixing the template fixing mechanism 30, the first protective wall fixing assembly 41 is arranged at the expansion joint position, the second protective wall fixing assembly 42 is arranged on the protective wall 20, the first protective wall fixing assembly 41 comprises a first fixing seat 411, a limiting clamp 412 and a limiting pad 413, the first fixing seat 411 is arranged at the expansion joint of the protective wall 20, two limiting clamps 412 are symmetrically arranged on one side of the first fixing seat 411, and both of the two limiting clamps 412 are arranged inside the expansion joint, the limiting pad 413 is arranged between the bending portion of one end of the limiting clamp 412 and the protective wall 20, the second protective wall fixing assembly 42 comprises a second fixing seat 421, a protective wall fixing piece 422 and a bolt 423, the second fixing seat 421 is arranged at a position not provided with the expansion joint on the protective wall 20, and a plurality of first fixing seats 411 and a plurality of second fixing seats 421 are arranged at equal intervals, the first fixing seat 411 and the second fixing seat 421 are both located in the same plane as the top plate 31, the protective wall fixing piece 422 is arranged at the top of the protective wall 20, and the protective wall fixing piece 422 is fixedly connected with the second fixing seat 421, the bolt 423 is arranged on one side of the protective wall fixing piece 422 away from the template fixing mechanism 30, one end of the bolt 423 is in contact with the geotextile on the protective wall 20, the limiting clamps 412 are inserted into the expansion joint, so that the bending portion of one end of the limiting clamps 412 abuts against the limiting pad 413 and is in contact with the protective wall 20, the first fixing seat 411 is fixed at the expansion joint position on the protective wall 20, the bolt 423 on the protective wall fixing piece 422 is in contact with the geotextile on the protective wall 20, the protective wall fixing piece 422 is installed on the protective wall 20, so that the position of the second fixing seat 421 on the protective wall fixing piece 422 is fixed, so that the first fixing seat 411 and the second fixing seat 421 can fix the side plate supporting assembly 43, and the side plate supporting assembly 43 can stably support the top plate 31 and the side plate 32.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3The side plate supporting assembly 43 comprises a third fixing base 431, a first telescopic screw 432, and a first pin key 433. The two third fixing bases 431 are respectively arranged on the top plate 31 and the side plate 32 near one side of the protective wall 20. The first telescopic screw 432 is arranged between the third fixing base 431 and the first fixing base 411 or the second fixing base 421. The first pin key 433 is connected to the two ends of the first telescopic screw 432, and the first pin key 433 is connected with the third fixing base 431, the first fixing base 411 or the second fixing base 421. By inserting the first pin key 433 into the first fixing base 411, the second fixing base 421, the third fixing base 431 and one end of the first telescopic screw 432, the two ends of the first telescopic screw 432 are fixed in the first fixing base 411, the second fixing base 421 and the third fixing base 431 respectively. The first telescopic screw 432 can be supported between the top plate 31, the side plate 32 and the first fixing base 411 and the second fixing base 421. The fixing of the top plate 31 and the side plate 32 to the base plate template 10 is more stable, thereby preventing the base plate template 10 from moving during concrete pouring. The protective wall fixing piece 422 is used to fix the position without a telescopic joint, and the limiting clamp 412 is used to fix the position of the telescopic joint, so that the top plate 31 and the side plate 32 on the protective wall 20 with large interval telescopic joints can be supported as needed, preventing the situation that the base plate template 10 cannot be stably supported due to the large interval of the telescopic joint. It is also not necessary to use the punching tie rod method for fixing, thereby reducing the maintenance cost.

[0022] Please refer to Figure 1 、 Figure 2 and Figure 3The connecting support assembly 44 is arranged between the first protective wall fixing assembly 41 and the second protective wall fixing assembly 42, and is used for fixing the first protective wall fixing assembly 41 and the second protective wall fixing assembly 42 or two second protective wall fixing assemblies 42 together. The top of the first fixing seat 411 and the second fixing seat 421 is provided with a through slot. The connecting support assembly 44 comprises a second telescopic screw 441 and a second pin key 442. A plurality of second telescopic screws 441 are arranged between the first fixing seat 411 and the second fixing seat 421 or between two second fixing seats 421, and the two ends of the first fixing seat 411 extend into the inside of the through slot. The second pin key 442 is connected to the two ends of the first fixing seat 411, and is in contact with the inside of the first fixing seat 411 or the second fixing seat 421. The screw rods at the two ends of the second telescopic screw 441 are rotated in the threaded rod sleeve, so that the screw rods at the two ends of the second telescopic screw 441 extend into the through slot of the first fixing seat 411 or the second fixing seat 421. Then the second pin key 442 is inserted into the screw rod of the second telescopic screw 441. The second pin key 442 is arranged at a position abutting against the first fixing seat 411 or the second fixing seat 421, so that the position of the second telescopic screw 441 is fixed, thereby fixing the first fixing seat 411 and the second fixing seat 421 or two second fixing seats 421 together, so as to connect and fix the protective wall support mechanism 40 as a whole, thereby improving the stability of the protective wall support mechanism 40, and enabling the protective wall support mechanism 40 to more stably support the top plate 31 and the side plate 32, thereby preventing the base plate formwork 10 from being expanded.

[0023] The function principle of the present application can be described as follows:

[0024] In use, two limiting clamps 412 on the first fixing seat 411 are inserted into the expansion joint, and a limiting pad 413 with a suitable thickness is placed in the curved part of the limiting clamp 412, so that the limiting clamp 412 and the limiting pad 413 can abut against the protective wall 20, the first fixing seat 411 is fixed at the expansion joint position of the protective wall 20, and then a suitable number of protective wall fixing pieces 422 are selected according to the spacing of the expansion joint and placed on the protective wall 20, the bolt 423 on the protective wall fixing piece 422 is rotated so that the bolt 423 is in contact with the geotextile on the outside of the protective wall 20, the second fixing seat 421 is fixed on the formwork fixing mechanism 30, and the plurality of first fixing seats 411 and the plurality of second fixing seats 421 are equidistantly arranged, the top plate 31 and the two side plates 32 are placed on the top of the two base plate formworks 10, the two side plates 32 are arranged on the two sides of the base plate formwork 10, and the plurality of top plates 31 and side plates 32 are arranged in the same horizontal plane of the first fixing seat 411 and the second fixing seat 421, the pad 35 is placed between the clamping block 34 and the base plate formwork 10, the threaded rod 33 on the side plate 32 is rotated so that the threaded rod 33 drives the clamping block 34 to move towards the base plate formwork 10, the clamping block 34 drives the pad 35 to abut against the base plate formwork 10, so that the clamping block 34 and the pad 35 support the base plate formwork 10, the two ends of the first telescopic screw 432 are rotated, the first telescopic screw 432 is elongated to a suitable length and then placed in the third fixing seat 431 on one side of the top plate 31 and the side plate 32, the other segment of the first telescopic screw 432 is placed in the first fixing seat 411 or the second fixing seat 421, the first pin key 433 is inserted into the two ends of the first telescopic screw 432, and the two ends of the first pin key 433 are fixed on the third fixing seat 431 and the first fixing seat 411 or the second fixing seat 421 respectively, so that the first fixing seat 411 or the second fixing seat 421 fixed on the protective wall 20 can support the top plate 31 and the side plate 32, the screw on the two ends of the second telescopic screw 441 is rotated, the second telescopic screw 441 is telescoped to a suitable length, the screws are inserted into the through slot in the first fixing seat 411 and the second fixing seat 421 or the two second fixing seats 421 respectively, the second pin key 442 is inserted into the two ends of the second telescopic screw 441, the second pin key 442 is in contact with the inner side of the first fixing seat 411 or the second fixing seat 421, the second telescopic screw 441 is fixed between the first fixing seat 411 and the second fixing seat 421 or the two second fixing seats 421, so that the plurality of first fixing seats 411 and the plurality of second fixing seats 421 can be connected together to form an integral whole and be fixed on the protective wall 20, the stability of the top plate 31 and the side plate 32 fixed by the protective wall supporting mechanism 40 is improved, and the clamping block 34 on the top plate 31 and the side plate 32 can abut against the pad 35 to stably fix the base plate formwork 10.

[0025] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

[0026] The above descriptions are only the preferred embodiments of the present application, not intended to limit the protection scope of the present application. Any modification and variation within the technical range disclosed by the present application, according to the technical solution and concept of the present application, should be covered within the protection scope of the present application.

Claims

1. A device for non-perforation support of a template for a large-span beam base plate, characterized in that, The template fixing mechanism (30) is arranged on the top of the two base plate templates (10), and the base plate template (10) is provided with a protection wall (20) on one side, and a plurality of expansion joints are arranged on the protection wall (20); the protection wall support mechanism (40) is arranged between the template fixing mechanism (30) and the protection wall (20), and the protection wall support mechanism (40) comprises: A plurality of side plate support assemblies (43) are arranged on one side of the template fixing mechanism (30) close to the protection wall (20), and the side plate support assembly (43) is used for supporting and fixing the template fixing mechanism (30); The first protection wall fixing assembly (41) is arranged at the expansion joint position, and the first protection wall fixing assembly (41) is used for fixing the side plate support assembly (43) at the expansion joint position on the protection wall (20); The second protection wall fixing assembly (42) is arranged on the protection wall (20), and the second protection wall fixing assembly (42) is used for fixing the side plate support assembly (43) at the position of the protection wall (20) which is not provided with the expansion joint; The connecting support assembly (44) is arranged between the first protection wall fixing assembly (41) and the second protection wall fixing assembly (42), and the connecting support assembly (44) is used for fixing the first protection wall fixing assembly (41) and the second protection wall fixing assembly (42) or two second protection wall fixing assemblies (42) together.

2. A device for supporting the formwork of the base slab of a long-span beam without drilling holes, according to claim 1, characterized in that, The template fixing mechanism (30) comprises: A top plate (31) is arranged on the top of the two base plate templates (10); Two side plates (32) are arranged on the two sides of the bottom of the top plate (31), and the side plates (32) are arranged on the outer side of the base plate template (10); A threaded rod (33) is threadedly connected to the side plate (32); A clamping block (34) is arranged on one side of the threaded rod (33) close to the base plate template (10); A pad (35) is arranged between the clamping block (34) and the base plate template (10).

3. A device for supporting the formwork of a large-span beam base plate without drilling holes, according to claim 2, characterized in that, The first protection wall fixing assembly (41) comprises: A first fixing seat (411) is arranged at the expansion joint of the protection wall (20); Two limiting clamps (412) are symmetrically arranged on one side of the first fixing seat (411), and the two limiting clamps (412) are arranged inside the expansion joint; A limiting pad (413) is arranged between the bending portion of one end of the limiting clamp (412) and the protection wall (20).

4. A device for supporting the formwork of a base slab of a long-span beam without drilling holes, according to claim 3, characterized in that, The second protection wall fixing assembly (42) comprises: A second fixing seat (421) is arranged at the position of the protection wall (20) which is not provided with the expansion joint, and a plurality of first fixing seats (411) and a plurality of second fixing seats (421) are arranged at equal intervals. A protective wall fixing part (422) is arranged at the top of the protective wall (20), and the protective wall fixing part (422) is fixedly connected with the second fixing seat (421); A bolt (423) is arranged on the side of the protective wall fixing part (422) away from the formwork fixing mechanism (30).

5. A device for supporting the formwork of a base slab of a long-span beam without drilling holes, according to claim 4, characterized in that, The side plate supporting assembly (43) comprises: Two third fixing seats (431) are respectively arranged on the top plate (31) and the side plate (32) on the side close to the protective wall (20); A first telescopic screw (432) is arranged between the third fixing seat (431) and the first fixing seat (411) or the second fixing seat (421); A first pin key (433) is connected at both ends of the first telescopic screw (432), and the first pin key (433) is in contact with the third fixing seat (431), the first fixing seat (411) or the second fixing seat (421).

6. A device for supporting the formwork of a large-span beam without drilling, according to claim 4, characterized in that, The top of the first fixing seat (411) and the second fixing seat (421) is provided with a through slot, and the connecting supporting assembly (44) comprises: A plurality of second telescopic screws (441) are arranged between the first fixing seat (411) and the second fixing seat (421) or between the two second fixing seats (421), and the two ends of the first fixing seat (411) extend into the inside of the through slot; A second pin key (442) is connected at both ends of the first fixing seat (411), and the second pin key (442) is in contact with the inside of the first fixing seat (411) or the second fixing seat (421).

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