High-pile wharf upper cast-in-place beam structure bottom die device, pouring system and dismounting method

Abstract

The invention relates to the technical field of high-pile wharf construction, in particular to a high-pile wharf upper cast-in-place beam structure bottom die device, a pouring system and a dismounting method. The hoisting structure comprises a lower cross beam, supporting legs and a hoisting rod assembly, and the supporting legs support the lower cross beam; a jacking device is supported between the upper cross beam and the lower cross beam, the first fixing nut and the first supporting nut can clamp the upper cross beam, the lower cross beam supports the second fixing nut, and the vertical hanging rod is in vertical limiting connection with the bottom die. According to the bottom die device for the cast-in-place beam structure on the upper portion of the long-piled wharf, in the whole process, an operator screws the first fixing nut, the first supporting nut and the second fixing nut, bottom die falling can be completed in cooperation with lifting of the jacking device, the whole bottom die device can enable the bottom die detaching process to be free of assistance of a large crane, and the suspender assembly is simple in structure and convenient to operate. The crane is simple in structure, low in cost and suitable for being arranged on a high-pile wharf in batches, and compared with a large crane, the cost is lower, and more cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of high-pile wharf construction, and in particular to a bottom formwork device, a casting system and a disassembly method for a cast-in-place beam structure on an upper part of a high-pile wharf. Background Art

[0002] When constructing the upper beam structure of the steel pipe piles of the high-pile wharf, it is sometimes necessary to cast it in situ, which is called a cast-in-situ beam structure in this field. When performing the cast-in-situ construction of the cast-in-situ beam structure, it is necessary to set up a bottom formwork at the bottom of the cast-in-situ beam structure, specifically: a corbel is set on the upper part of the steel pipe pile to support the bottom formwork. After the casting construction of the cast-in-situ beam structure is completed, the corbel needs to be removed, and then the bottom formwork is lowered to the floating raft on the water surface to decompose the bottom formwork, and then the decomposed parts are transported out of the steel pipe pile area for recycling. The above process currently generally requires the assistance of a crane, that is, after the casting construction of the cast-in-situ beam structure is completed, the bottom formwork is first suspended by a crane, and then the corbel is removed, and then the bottom formwork is lowered to the floating raft by the crane, and then the bottom formwork is decomposed. However, the cost of the on-site crane is very expensive, and there are often dozens or even hundreds of bottom formworks, and the crane cannot be arranged in batches, resulting in a long time-consuming and costly bottom formwork disassembly process. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the background technology that a bottom form is lowered onto a floating raft by a crane and then the bottom form is disassembled, and the bottom form disassembly process is time-consuming and costly, and to provide a bottom form device, a casting system and a disassembly method for the cast-in-place beam structure on the upper part of a high-pile wharf.

[0004] In a first aspect, the present invention provides a bottom formwork device for a cast-in-place beam structure on the upper part of a high-pile wharf, comprising a bottom formwork and a hoisting structure connected to both ends of the bottom formwork in a length direction, wherein the hoisting structure comprises a lower crossbeam, a leg and at least two suspension rod assemblies spaced apart along a width direction of the bottom formwork, wherein the lower crossbeam is arranged along the width direction of the bottom formwork; the leg supports the lower crossbeam; the suspension rod assembly comprises an upper crossbeam and at least two vertical suspension rods spaced apart in a transverse direction, wherein the upper crossbeam is located above the lower crossbeam, the vertical suspension rod passes through the upper crossbeam and the lower crossbeam, a jacking device is supported between the upper crossbeam and the lower crossbeam, and the jacking device is located between the two vertical suspension rods, The vertical hanger is threadedly matched with a first fixing nut, a first supporting nut and a second fixing nut in sequence from top to bottom, the first supporting nut is supported at the bottom of the upper beam, the first fixing nut is located at the top of the upper beam, and the first fixing nut and the first supporting nut can clamp the upper beam from the upper and lower sides of the upper beam, the second fixing nut is located at the top of the lower beam, and the lower beam can support the second fixing nut, the lower part of the vertical hanger is connected to the bottom mold, the upper beam is located above the lower beam, the bottom mold is located below the lower beam, and the vertical hanger is connected to the bottom mold in a vertical limit connection.

[0005] The bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf described in the present application, when the bottom formwork is in use, the support legs support the lower cross beam, and the lower cross beam supports the second fixing nut. Since the second fixing nut is threadedly matched with the vertical hanger, and the lower part of the vertical hanger is connected to the bottom formwork, the purpose of the lower cross beam supporting the vertical hanger to stably set the bottom formwork in the construction position is achieved.

[0006] When the bottom mold needs to be disassembled, the lifting device is first adjusted to the extended state, but there is still a certain lifting space; then the first fixing nut and the first supporting nut are clamped to the upper beam from the upper and lower sides of the upper beam; then the lifting device is lifted to make the upper beam rise a first distance H1, and the lower beam is separated from the second fixing nut, and the two are no longer subjected to mutual force, so that the operator can tighten the second fixing nut with an ordinary wrench; the second fixing nut is turned, and the second fixing nut is raised along the vertical suspension rod by a second distance H2, and the second distance H2 is greater than the first distance H1; then the lifting device The bottom mold is then lowered back until the lower cross beam supports the second fixing nut again. At this time, since the vertical hanger is connected to the vertical limit connection of the bottom mold, the vertical hanger drives the bottom mold to fall. Thereafter, the above process is repeated until the bottom mold falls to the target height. The entire process is completed by the operator screwing the first fixing nut, the first supporting nut and the second fixing nut, and cooperating with the lifting device to lift and lower the bottom mold. The entire bottom mold device can make the bottom mold disassembly process do not require the assistance of a large crane. The hanger assembly has a simple structure and low cost, and is suitable for batch arrangement on high-pile docks. Compared with large cranes, it has lower cost and is more cost-effective.

[0007] Moreover, since the lifting structure can form a stable suspension support for the bottom mold, the work of disassembling the bottom mold does not need to be performed on the floating raft. Compared with the working condition where the floating raft floats with the water, the lifting structure of the present application can form a stable suspension support for the bottom mold, which makes it safer for operators to disassemble the bottom mold.

[0008] Preferably, the lifting device is connected to the upper crossbeam.

[0009] Since there is an adhesive force between the bottom form and its upper cast-in-place beam structure, it is connected to the upper cross beam through a jacking device, and the vertical hanger is connected to the vertical limit of the bottom form. When the jacking device falls back, it can drive the bottom form to separate from the upper cast-in-place beam structure, thereby reducing the difficulty for the operator to separate the bottom form from the upper cast-in-place beam structure.

[0010] Preferably, adjacent upper cross beams are arranged at intervals, which greatly reduces the requirements for synchronous lifting and synchronous extension between the lifting devices, and effectively reduces the cost of the lifting devices.

[0011] Preferably, there are at least two legs located on the same side of the bottom mold, one end of the leg is tilted to pass through the gap between the two vertical hangers of the same hanger assembly, and forms a limit for the hanger assembly along the length direction of the bottom mold, and one end of the leg away from the hanger assembly is tilted toward the inner side of the bottom mold, so that no other limiting structure is required between the leg and the vertical hanger to achieve the limitation of both along the length direction of the bottom mold.

[0012] Preferably, the bottom formwork comprises a template and a beam structure for supporting the template, and the beam structure is vertically limitedly connected to the vertical hanger.

[0013] Preferably, the hanger assembly includes a bottom cross beam, a third fixing nut and a pressure plate. A support portion is provided at the bottom of the vertical hanger, and the support portion supports the bottom cross beam. The corresponding end of the beam structure passes through the gap between the two vertical hangers of the same hanger assembly and is supported on the bottom cross beam. The third fixing nut is threadedly engaged with the vertical hanger, and the third fixing nut can abut against the pressure plate, so that the pressure plate and the bottom cross beam form a vertical limit for the beam structure.

[0014] In a second aspect, the present invention provides a casting system, including a cast-in-place beam structure and a bottom formwork device for the cast-in-place beam structure on the upper part of a high-pile wharf as described in the present application, wherein the support legs are connected to the cast-in-place beam structure.

[0015] Preferably, the legs are lateral swingably coordinated with the cast-in-place beam structure.

[0016] In a third aspect, a disassembly method is provided for disassembling a bottom formwork device for a cast-in-place beam structure on a high-pile wharf as described in the present application, comprising the following steps:

[0017] A1. Rotate the first fixing nut and raise the first fixing nut along the vertical boom for a certain distance;

[0018] A2. Lift the lifting device onto the crossbeam for a certain distance;

[0019] A3. Clamp the upper beam by clamping the first fixing nut and the first supporting nut from the upper and lower sides of the upper beam;

[0020] A4. Continue to lift the lifting device to disengage the lower beam from the second fixing nut, and the vertical distance between the lower beam and the second fixing nut is the first distance H1;

[0021] A5. Rotate the second fixing nut and raise the second fixing nut along the vertical boom by a second distance H2, wherein the second distance H2 is greater than the first distance H1;

[0022] A6. The lifting device falls back, so that the vertical suspension rod drives the bottom mold to fall until the lower crossbeam supports the second fixing nut again;

[0023] A7. Repeat A1-A6 until the bottom mold falls to the target height and the bottom mold is separated from the lifting structure.

[0024] A disassembly method described in the present application is that when the bottom mold is in use, the support legs support the lower cross beam, and the lower cross beam supports the second fixing nut. Since the second fixing nut cooperates with the vertical hanger thread, and the lower part of the vertical hanger is connected to the bottom mold, the lower cross beam supports the vertical hanger to achieve the purpose of stably setting the bottom mold in the construction position.

[0025] When the bottom mold needs to be disassembled, the lifting device is first adjusted to the extended state, but there is still a certain lifting space; then the first fixing nut and the first supporting nut are clamped to the upper beam from the upper and lower sides of the upper beam; then the lifting device is lifted to make the upper beam rise a first distance H1, and the lower beam is separated from the second fixing nut, and the two are no longer subjected to mutual force, so that the operator can tighten the second fixing nut with an ordinary wrench; the second fixing nut is turned, and the second fixing nut is raised along the vertical suspension rod by a second distance H2, and the second distance H2 is greater than the first distance H1; then the lifting device The bottom mold is then lowered back until the lower cross beam supports the second fixing nut again. At this time, since the vertical hanger is connected to the vertical limit connection of the bottom mold, the vertical hanger drives the bottom mold to fall. Thereafter, the above process is repeated until the bottom mold falls to the target height. The entire process is completed by the operator screwing the first fixing nut, the first supporting nut and the second fixing nut, and cooperating with the lifting device to lift and lower the bottom mold. The entire bottom mold device can make the bottom mold disassembly process do not require the assistance of a large crane. The hanger assembly has a simple structure and low cost, and is suitable for batch arrangement on high-pile docks. Compared with large cranes, it has lower cost and is more cost-effective.

[0026] Moreover, since the lifting structure can form a stable suspension support for the bottom mold, the work of disassembling the bottom mold does not need to be performed on the floating raft. Compared with the working condition where the floating raft floats with the water, the lifting structure of the present application can form a stable suspension support for the bottom mold, which makes it safer for operators to disassemble the bottom mold.

[0027] Preferably, a steel pipe pile is provided at the lower part of the cast-in-place beam structure, and a corbel is detachably connected to the steel pipe pile, and the corbel is used to support the bottom form. When the bottom form includes a template and a beam structure for supporting the template:

[0028] Preferably, before A1, the method further includes the step of disassembling the corbel: connecting the corbel to the beam structure, and then disassembling and separating the corbel from the steel pipe pile;

[0029] Preferably, in A7, when the bottom formwork falls to a height H from the floating row, it stops falling, then the template is disassembled, and the disassembled parts are placed on the floating row, and then the beam structure continues to be lowered until the beam structure falls on the floating row, and the bottom formwork and the lifting structure are separated.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf described in the present application, when the bottom formwork is in use, the support legs support the lower cross beam, and the lower cross beam supports the second fixing nut. Since the second fixing nut is threadedly matched with the vertical hanger, and the lower part of the vertical hanger is connected to the bottom formwork, the purpose of the lower cross beam supporting the vertical hanger to stably set the bottom formwork in the construction position is achieved.

[0032] When the bottom mold needs to be disassembled, the lifting device is first adjusted to the extended state, but there is still a certain lifting space; then the first fixing nut and the first supporting nut are clamped to the upper beam from the upper and lower sides of the upper beam; then the lifting device is lifted to make the upper beam rise a first distance H1, and the lower beam is separated from the second fixing nut, and the two are no longer subjected to mutual force, so that the operator can tighten the second fixing nut with an ordinary wrench; the second fixing nut is turned, and the second fixing nut is raised along the vertical suspension rod by a second distance H2, and the second distance H2 is greater than the first distance H1; then the lifting device The bottom mold is then lowered back until the lower cross beam supports the second fixing nut again. At this time, since the vertical hanger is connected to the vertical limit connection of the bottom mold, the vertical hanger drives the bottom mold to fall. Thereafter, the above process is repeated until the bottom mold falls to the target height. The entire process is completed by the operator screwing the first fixing nut, the first supporting nut and the second fixing nut, and cooperating with the lifting device to lift and lower the bottom mold. The entire bottom mold device can make the bottom mold disassembly process do not require the assistance of a large crane. The hanger assembly has a simple structure and low cost, and is suitable for batch arrangement on high-pile docks. Compared with large cranes, it has lower cost and is more cost-effective.

[0033] Moreover, since the lifting structure can form a stable suspension support for the bottom mold, the work of disassembling the bottom mold does not need to be performed on the floating raft. Compared with the working condition where the floating raft floats with the water, the lifting structure of the present application can form a stable suspension support for the bottom mold, which makes it safer for operators to disassemble the bottom mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a three-dimensional schematic diagram of the bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf of the present application;

[0035] Figure 2 For this application Figure 1 Enlarged schematic diagram of part A in the middle.

[0036] Figure 3 For this application Figure 1 Enlarged schematic diagram of part B in the middle.

[0037] Figure 4 This is a schematic diagram of the main view of the bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf of the present application;

[0038] Figure 5 It is a top view schematic diagram of the bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf of the present application (U-shaped member);

[0039] Figure 6 A top view schematic diagram of the bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf of the present application (connecting bolts);

[0040] Figure 7 This is a schematic diagram of the steps of clamping the upper cross beam from the upper and lower sides of the upper cross beam with a first fixing nut and a first supporting nut in a disassembly method of the present application.

[0041] Figure 8 For this application Figure 7 Enlarged schematic diagram of part C in the middle.

[0042] Fig. 9 It is a schematic diagram of the steps of disengaging the lower cross beam from the second fixing nut in a disassembly method of the present application.

[0043] Fig.10 For this application Fig. 9 Enlarged schematic diagram of part D in the middle.

[0044] Fig.11 A schematic diagram of the steps of rotating a second fixing nut and raising the second fixing nut a second distance along a vertical suspension rod in a disassembly method of the present application.

[0045] Fig.12 For this application Fig.11 Enlarged schematic diagram of part E in the middle.

[0046] Fig.13 A schematic diagram of the steps of lowering the lifting device in a disassembly method of the present application so that the lower crossbeam supports the second fixing nut again.

[0047] Fig.14 For this application Fig.13 Enlarged schematic diagram of part F in the middle.

[0048] Markings in the figure:

[0049] 1-bottom formwork; 2-lifting structure; 3-upper beam; 4-lower beam; 5-legs; 6-lifting device; 7-suspender assembly; 8-vertical hanger; 9-first support nut; 10-second fixing nut; 11-first fixing nut; 12-template; 13-beam structure; 14-cast-in-place beam structure; 15-bottom beam; 16-support part; 17-third fixing nut; 18-pressing plate; 19-U-shaped member, 20-connecting bolts. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0051] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0052] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0053] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0054] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0055] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0056] Example 1

[0057] like Figure 1-6 As shown, the bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf described in this embodiment includes a bottom formwork 1 and a hoisting structure 2 connected to both ends of the bottom formwork 1 in the length direction, and the bottom formwork 1 can be lowered through the hoisting structure 2.

[0058] A preferred solution: the hoisting structure 2 includes a lower cross beam 4, a support leg 5 and at least two suspension rod assemblies 7, and the at least two suspension rod assemblies 7 are arranged at intervals along the width direction of the bottom mold 1, and the lower cross beam 4 is arranged along the width direction of the bottom mold 1; the support leg 5 supports the lower cross beam 4; the suspension rod assembly 7 includes an upper cross beam 3 and at least two vertical suspension rods 8 arranged at intervals in the transverse direction, the upper cross beam 3 is located above the lower cross beam 4, the vertical suspension rod 8 passes through the upper cross beam 3 and the lower cross beam 4, a jacking device 6 is supported between the upper cross beam 3 and the lower cross beam 4, the jacking device 6 is located between the two vertical suspension rods 8, and the vertical suspension rods 8 are threadedly matched with the first A fixing nut 11, a first supporting nut 9 and a second fixing nut 10, wherein the first supporting nut 9 is supported at the bottom of the upper beam 3, the first fixing nut 11 is located at the top of the upper beam 3, and the first fixing nut 11 and the first supporting nut 9 can clamp the upper beam 3 from the upper and lower sides of the upper beam 3, the second fixing nut 10 is located at the top of the lower beam 4, and the lower beam 4 can support the second fixing nut 10, the lower part of the vertical suspension rod 8 is connected to the bottom mold 1, the upper beam 3 is located above the lower beam 4, and the bottom mold 1 is located below the lower beam 4, and the vertical suspension rod 8 is vertically limitedly connected to the bottom mold 1.

[0059] A specific preferred embodiment of the lower cross beam 4 is that the lower cross beam 4 is formed by two channel steels connected back to back and welded by a first plate, a gap is provided between the two channel steels for allowing the vertical hanger 8 to pass through, and first plates are provided on both sides of the vertical hanger 8.

[0060] In a specific preferred embodiment of the support leg 5, the support leg 5 may be an H-shaped steel, an I-beam, a box beam or a rectangular tube structure.

[0061] A specific preferred embodiment of the upper cross beam 3 is that the upper cross beam 3 is formed by two channel steels connected back to back and welded by a second plate, a gap is provided between the two channel steels for allowing the vertical hanger 8 to pass through, and second plates are provided on both sides of the vertical hanger 8.

[0062] In another specific preferred embodiment of the upper cross beam 3, the upper cross beam 3 is made of a box beam or a rectangular tube structure, and a through hole for the vertical suspension rod 8 to pass through needs to be opened thereon.

[0063] In a specific preferred embodiment, the lifting device 6 is preferably a jack.

[0064] In a particularly preferred embodiment, the vertical suspension rod 8 is preferably a steel rod with threads.

[0065] In a preferred manner, a pad is provided on the force-bearing side of the first support nut 9, the second fixing nut 10 and / or the first fixing nut 11. In a preferred manner, the jacking device 6 is connected to the upper cross beam 3. Since there is an adhesive force between the bottom mold 1 and its upper cast-in-place beam structure, the jacking device 6 is connected to the upper cross beam 3, and the vertical hanger 8 is vertically limitedly connected to the bottom mold 1. When the jacking device 6 falls back, it can drive the bottom mold 1 to separate from the upper cast-in-place beam structure, thereby reducing the difficulty for the operator to separate the bottom mold 1 from the upper cast-in-place beam structure.

[0066] In a preferred embodiment, adjacent upper cross beams 3 are arranged at intervals, which greatly reduces the requirements for synchronous lifting and synchronous extension between the lifting devices 6 and effectively reduces the cost of the lifting devices 6 .

[0067] In a preferred embodiment, there are at least two legs 5 located on the same side of the bottom mold 1, one end of the leg 5 is tilted to pass through the gap between the two vertical hangers 8 of the same hanger assembly 7, and forms a limit for the hanger assembly 7 along the length direction of the bottom mold 1, and one end of the leg 5 away from the hanger assembly 7 is tilted toward the inner side of the bottom mold 1. The above-mentioned limit is very flexible, so that no other limit structure is required between the leg 5 and the vertical hanger 8 to achieve the limit of both along the length direction of the bottom mold 1.

[0068] In a specific preferred embodiment, the two vertical booms 8 of the same boom assembly 7 form a first vertical plane, and an angle A is formed between the axial direction of the support leg 5 and the first vertical plane, wherein 0°>A>90°.

[0069] Preferably, the bottom mold 1 includes a template 12 and a beam structure 13 for supporting the template 12 , and the beam structure 13 is vertically limitedly connected to the vertical suspension rod 8 .

[0070] In a specific preferred embodiment of the beam structure 13 , the beam structure 13 is formed by two channel steels back to back and welded together via a third plate, and the vertical hanger 8 is located outside the beam structure 13 .

[0071] In a specific preferred embodiment of the beam structure 13, the legs 5 may be H-shaped steel, I-beam, box beam or rectangular tube structure.

[0072] A specific preferred embodiment of the formwork 12 includes a plate and a plurality of transverse ribs connecting the back of the plate. The front of the plate is relatively smooth and serves as a limiting surface for the cast-in-place beam structure 14. The transverse ribs support the plate and increase the rigidity of the plate. The beam structure 13 supports the plate through the transverse ribs.

[0073] In a preferred manner, the hanger assembly 7 includes a bottom cross beam 15, a third fixing nut 17 and a pressure plate 18. A support portion 16 is provided at the bottom of the vertical hanger 8. The support portion 16 supports the bottom cross beam 15, and the end of the corresponding beam structure 13 passes through the gap between the two vertical hangers 8 of the same hanger assembly 7 and is supported on the bottom cross beam 15. The third fixing nut 17 is threadedly matched with the vertical hanger 8, and the third fixing nut 17 can abut against the pressure plate 18, so that the pressure plate 18 and the bottom cross beam 15 form a vertical limit for the beam structure 13.

[0074] In a specific preferred embodiment of the support portion 16 , the support portion 16 is a truncated cone structure with a diameter greater than that of the vertical suspension rod 8 , and is capable of supporting the bottom cross beam 15 .

[0075] A specific preferred embodiment of the bottom cross beam 15 is that the bottom cross beam 15 is formed by two channel steels back to back and welded together by a fourth plate, a gap is provided between the two channel steels for the vertical hanger 8 to pass through, and fourth plates are provided on both sides of the vertical hanger 8.

[0076] In a specific preferred embodiment of the bottom cross beam 15, the support leg 5 can be a channel steel, a box beam or a rectangular tube structure. In this case, a through hole needs to be opened on the channel steel, the box beam or the rectangular tube structure to allow the vertical hanger 8 to pass through.

[0077] In the bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf described in this embodiment, when the bottom formwork 1 is in use, the support legs 5 support the lower cross beam 4, and the lower cross beam 4 supports the second fixing nut 10. Since the second fixing nut 10 is threadedly matched with the vertical hanger 8, and the lower part of the vertical hanger 8 is connected to the bottom formwork 1, the lower cross beam 4 supports the vertical hanger 8 to stably set the bottom formwork 1 at the construction position.

[0078] When the bottom mold 1 needs to be disassembled, the lifting device 6 is first adjusted to the extended state, but there is still a certain lifting space; then the first fixing nut 11 and the first supporting nut 9 are clamped on the upper and lower sides of the upper beam 3; then the lifting device 6 is lifted to make the upper beam 3 rise a first distance H1 [the first time is generally 1-2mm, at this time, the displacement space of 1-2mm is provided by the structural deformation of the bottom mold 1 or the axial structural deformation of the vertical suspension rod 8], the lower beam 4 is separated from the second fixing nut 10, and the two are no longer subjected to mutual force, so that the operator can tighten the second fixing nut 10 with an ordinary wrench; rotate the second fixing nut 10, and make the second fixing nut 10 rise along the vertical suspension rod 8 by a second distance H1. Distance H2, the second distance H2 is greater than the first distance H1; then the jacking device 6 falls back until the lower cross beam 4 supports the second fixing nut 10 again. At this time, since the vertical suspension rod 8 is vertically limitedly connected to the bottom mold 1, the vertical suspension rod 8 drives the bottom mold 1 to fall; then the above process is repeated until the bottom mold 1 falls to the target height. The whole process is completed by the operator screwing the first fixing nut 11, the first supporting nut 9 and the second fixing nut 10, and cooperating with the lifting device 6 to lift and lower the bottom mold 1. The whole bottom mold device can make the disassembly process of the bottom mold 1 do not require the assistance of a large crane. The suspension rod assembly 7 has a simple structure and low cost, and is suitable for batch arrangement on high-pile docks. Compared with large cranes, it has lower cost and is more cost-effective.

[0079] Moreover, since the lifting structure 2 can form a stable suspension support for the bottom mold 1, the work of disassembling the bottom mold 1 does not need to be performed on the floating raft. Compared with the working condition where the floating raft floats with the water, the lifting structure 2 of the present application can form a stable suspension support for the bottom mold 1, which makes it safer for the operator to disassemble the bottom mold 1.

[0080] The vertical suspension rod 8 can be configured as a stepped structure with a small top and a large bottom to facilitate the rapid installation of each nut.

[0081] Example 2

[0082] like Figure 1-6As shown, a casting system described in this embodiment includes a cast-in-place beam structure 14 and a bottom formwork device for the upper cast-in-place beam structure of a high-pile wharf as described in Example 1, and the support legs 5 are connected to the cast-in-place beam structure 14.

[0083] In a preferred manner, the supporting legs 5 are clamped on the cast-in-place beam structure 14 via a U-shaped member 19 .

[0084] In a preferred embodiment, the support leg 5 cooperates with the cast-in-place beam structure 14 in a lateral swinging manner.

[0085] In a specific preferred manner, a vertical through hole is provided on the supporting leg 5, a connecting bolt 20 passes through the vertical through hole and is connected to the cast-in-place beam structure 14, and the supporting leg 5 can swing laterally around the connecting bolt.

[0086] The cast-in-place beam structure 14 is preferably a convex beam or a strip beam structure.

[0087] Example 3

[0088] like Figure 7-14 As shown, a disassembly method described in this embodiment is used to disassemble the bottom formwork device for the cast-in-place beam structure on the upper part of the high-pile wharf as described in Example 1, comprising the following steps:

[0089] A1. Rotate the first fixing nut 11 and raise the first fixing nut 11 along the vertical boom 8 for a certain distance;

[0090] A2. Lift the lifting device 6 up to the upper beam 3 for a certain distance;

[0091] A3. Clamp the first fixing nut 11 and the first supporting nut 9 from the upper and lower sides of the upper beam 3 to the upper beam 3;

[0092] A4. Continue to lift the lifting device 6 to separate the lower cross beam 4 from the second fixing nut 10, and the vertical distance between the lower cross beam 4 and the second fixing nut 10 is the first distance H1; [the first distance H1 is generally 1-2 mm, and at this time, the bottom mold 1 is deformed or the vertical suspension rod 8 is deformed in the axial direction to provide a displacement space of 1-2 mm];

[0093] A5. Rotate the second fixing nut 10 and make the second fixing nut 10 rise along the vertical boom 8 by a second distance H2, wherein the second distance H2 is greater than the first distance H1;

[0094] A6. The lifting device 6 falls back, so that the vertical suspension rod 8 drives the bottom mold 1 to fall until the lower beam 4 supports the second fixing nut 10 again;

[0095] A7. Repeat A1-A6 until the bottom mold 1 falls to the target height and the bottom mold 1 and the lifting structure 2 are separated.

[0096] The present application describes a disassembly method, when the bottom mold 1 is in use, the support legs 5 support the lower cross beam 4, and the lower cross beam 4 supports the second fixing nut 10. Since the second fixing nut 10 is threadedly matched with the vertical hanger 8, and the lower part of the vertical hanger 8 is connected to the bottom mold 1, the lower cross beam 4 supports the vertical hanger 8 to stably set the bottom mold 1 in the construction position.

[0097] When the bottom mold 1 needs to be disassembled, the lifting device 6 is first adjusted to the extended state, but there is still a certain lifting space; then the first fixing nut 11 and the first supporting nut 9 are clamped on the upper and lower sides of the upper beam 3; then the lifting device 6 is lifted to make the upper beam 3 rise a first distance H1 [the first time is generally 1-2mm, at this time, the displacement space of 1-2mm is provided by the structural deformation of the bottom mold 1 or the axial structural deformation of the vertical suspension rod 8], the lower beam 4 is separated from the second fixing nut 10, and the two are no longer subjected to mutual force, so that the operator can tighten the second fixing nut 10 with an ordinary wrench; rotate the second fixing nut 10, and make the second fixing nut 10 rise along the vertical suspension rod 8 by a second distance H1. Distance H2, the second distance H2 is greater than the first distance H1; then the jacking device 6 falls back until the lower cross beam 4 supports the second fixing nut 10 again. At this time, since the vertical suspension rod 8 is vertically limitedly connected to the bottom mold 1, the vertical suspension rod 8 drives the bottom mold 1 to fall; then the above process is repeated until the bottom mold 1 falls to the target height. The whole process is completed by the operator screwing the first fixing nut 11, the first supporting nut 9 and the second fixing nut 10, and cooperating with the lifting device 6 to lift and lower the bottom mold 1. The whole bottom mold device can make the disassembly process of the bottom mold 1 do not require the assistance of a large crane. The suspension rod assembly 7 has a simple structure and low cost, and is suitable for batch arrangement on high-pile docks. Compared with large cranes, it has lower cost and is more cost-effective.

[0098] Moreover, since the lifting structure 2 can form a stable suspension support for the bottom mold 1, the work of disassembling the bottom mold 1 does not need to be performed on the floating raft. Compared with the working condition where the floating raft floats with the water, the lifting structure 2 of the present application can form a stable suspension support for the bottom mold 1, which makes it safer for the operator to disassemble the bottom mold 1.

[0099] In a preferred embodiment, a steel pipe pile is provided at the lower part of the cast-in-place beam structure 14, and a corbel is detachably connected to the steel pipe pile, and the corbel is used to support the bottom form 1. When the bottom form 1 includes a template 12 and a beam structure 13 for supporting the template 12:

[0100] In a preferred embodiment, before step A1, the step of disassembling the corbel is further included: connecting the corbel to the beam structure 13, and then disassembling and separating the corbel from the steel pipe pile;

[0101] The corbel is connected to the beam structure 13 to prevent the corbel from falling directly onto the floating row after being disassembled, thereby causing structural damage to the floating row. In addition, the corbel can be slowly lowered along with the bottom form 1 at a later stage, thus omitting the separate corbel lowering step and saving construction time.

[0102] Preferably, the bracket is configured as two semicircular structures, and the two semicircular structures are connected to the steel pipe pile by bolts. During construction, a small hole is provided on the template 12, and the operator inserts a tool (such as a bolt wrench) through the small hole on the template 12, and then removes the bolt.

[0103] Preferably, in A7, when the bottom form 1 falls to a height H from the floating row, it stops falling, then the template 12 is disassembled, and the disassembled parts are placed on the floating row, and then the beam structure 13 is continued to be lowered until the beam structure 13 falls on the floating row, and the bottom form 1 and the lifting structure 2 are separated.

[0104] More specifically, H ≤ 300 mm.

[0105] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The bottom formwork device of the cast-in-place beam structure on the upper part of the high-pile wharf is characterized by: The invention comprises a bottom mold (1) and a hanging structure (2) connected to both ends of the bottom mold (1) in the length direction, wherein the hanging structure (2) comprises a lower cross beam (4), a support leg (5) and at least two hanging rod assemblies (7) arranged at intervals along the width direction of the bottom mold (1), wherein the lower cross beam (4) is arranged along the width direction of the bottom mold (1); the support leg (5) supports the lower cross beam (4); the hanging rod assembly (7) comprises an upper cross beam (3) and at least two vertical hanging rods (8) arranged at intervals in the transverse direction, wherein the upper cross beam (3) is located above the lower cross beam (4), the vertical hanging rod (8) passes through the upper cross beam (3) and the lower cross beam (4), and a lifting device (6) is supported between the upper cross beam (3) and the lower cross beam (4), and the lifting device (6) is located between the two vertical hanging rods. The vertical suspension rod (8) is threadedly matched with a first fixing nut (11), a first supporting nut (9) and a second fixing nut (10) in sequence from top to bottom, the first supporting nut (9) is supported at the bottom of the upper cross beam (3), the first fixing nut (11) is located at the top of the upper cross beam (3), and the first fixing nut (11) and the first supporting nut (9) can clamp the upper cross beam (3) from the upper and lower sides of the upper cross beam (3), the second fixing nut (10) is located at the top of the lower cross beam (4), and the lower cross beam (4) can support the second fixing nut (10), the bottom mold (1) is located below the lower cross beam (4), and the vertical suspension rod (8) is vertically limitedly connected to the bottom mold (1).

2. The bottom formwork device for the cast-in-place beam structure on the upper part of the high-pile wharf according to claim 1 is characterized in that: The lifting device (6) is connected to the upper crossbeam (3).

3. The bottom formwork device for the cast-in-place beam structure on the upper part of the high-pile wharf according to claim 2 is characterized in that: Adjacent upper cross beams (3) are arranged at intervals.

4. The bottom formwork device for the cast-in-place beam structure on the upper part of the high-pile wharf according to claim 1 is characterized in that: There are at least two supporting legs (5) located on the same side of the bottom mold (1), one end of the supporting leg (5) is inclined to pass through the gap between two vertical suspension rods (8) of the same suspension rod assembly (7), and forms a limit for the suspension rod assembly (7) along the length direction of the bottom mold (1), and one end of the supporting leg (5) away from the suspension rod assembly (7) is inclined toward the inside of the bottom mold (1).

5. The bottom formwork device for the cast-in-place beam structure on the upper part of the high-pile wharf according to any one of claims 1 to 4, characterized in that: The bottom formwork (1) comprises a formwork (12) and a beam structure (13) for supporting the formwork (12); the beam structure (13) is vertically limitedly connected to the vertical suspension rod (8).

6. The bottom formwork device for the cast-in-place beam structure on the upper part of the high-pile wharf according to claim 5 is characterized in that: The suspension rod assembly (7) includes a bottom cross beam (15), a third fixing nut (17) and a pressure plate (18). A support portion (16) is provided at the bottom of the vertical suspension rod (8). The support portion (16) supports the bottom cross beam (15), and the end of the corresponding beam structure (13) passes through the gap between the two vertical suspension rods (8) of the same suspension rod assembly (7) and is supported on the bottom cross beam (15). The third fixing nut (17) is threadedly matched with the vertical suspension rod (8). The third fixing nut (17) can abut against the pressure plate (18), so that the pressure plate (18) and the bottom cross beam (15) form a vertical limit for the beam structure (13).

7. A casting system, characterized in that: It comprises a cast-in-place beam structure (14) and a bottom formwork device for a cast-in-place beam structure on the upper part of a high-pile wharf as claimed in any one of claims 1 to 6, wherein the support legs (5) are connected to the cast-in-place beam structure (14).

8. A pouring system according to claim 7, characterized in that: The supporting legs (5) cooperate with the cast-in-place beam structure (14) in a lateral swinging manner.

9. A disassembly method, characterized in that: The method for disassembling the bottom formwork device for the cast-in-place beam structure on the upper part of a high-pile wharf according to any one of claims 1 to 6 comprises the following steps: A1. Rotate the first fixing nut (11) and make the first fixing nut (11) rise a certain distance along the vertical suspension rod (8); A2. Lift the lifting device (6) to the upper beam (3) for a certain distance; A3. Clamp the upper beam (3) with the first fixing nut (11) and the first supporting nut (9) from the upper and lower sides of the upper beam (3); A4. Continue to lift the lifting device (6) to separate the lower beam (4) from the second fixing nut (10), and the vertical distance between the lower beam (4) and the second fixing nut (10) is a first distance H1; A5. rotating the second fixing nut (10) and causing the second fixing nut (10) to rise along the vertical suspension rod (8) by a second distance H2, wherein the second distance H2 is greater than the first distance H1; A6. The lifting device (6) falls back, so that the vertical suspension rod (8) drives the bottom mold (1) to fall until the lower cross beam (4) supports the second fixing nut (10) again; A7. Repeat A1-A6 until the bottom mold (1) falls to the target height and the bottom mold (1) and the lifting structure (2) are separated.

10. A disassembly method according to claim 9, characterized in that: A steel pipe pile is arranged at the bottom of the cast-in-place beam structure (14), and a corbel is detachably connected to the steel pipe pile, and the corbel is used to support the bottom form (1). When the bottom form (1) includes a template (12) and a beam structure (13) for supporting the template (12): Before A1, the method further includes the step of disassembling the corbel: connecting the corbel to the beam structure (13), and then disassembling and separating the corbel from the steel pipe pile; and / or, In A7, when the bottom form (1) falls to a height H from the floating row, it stops falling, then the template (12) is disassembled, and the disassembled parts are placed on the floating row, and then the beam structure (13) is continuously lowered until the beam structure (13) falls on the floating row and the bottom form (1) and the lifting structure (2) are separated.

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