A kind of cast-in-place side wall side form for railway bridge deck

Abstract

The utility model relates to the technical field of railway bridge concrete casting formwork, and specifically to a railway bridge deck cast-in-place side wall side formwork, including a cantilever structure, an outer side formwork, an inner side formwork and a support and tie rod assembly. The cantilever structure is arranged above the railway bridge deck, and its fixed end is installed on the ballast retaining wall, and the suspended end is connected to the upper part of the outer side formwork. A height-adjustable step module is arranged on the inner side formwork. The cantilever structure, the outer side formwork and the inner side formwork are supported and connected by a support and tie rod assembly. The utility model uses the ballast retaining wall and the cantilever structure to fix the outer side formwork of the side wall, solves the problem of erecting the formwork under the condition that the outer side of the side wall is flush with the edge of the bridge deck, does not need to drill holes in the bridge deck to plant reinforcement, does not need to set through-wall tie rods, does not need to level the bridge deck elevation at the position of the erection formwork, and the installation and removal of the side wall formwork is safer, more efficient, and has lower construction costs.

Description

Technical Field

[0001] The utility model relates to the technical field of railway bridge concrete pouring templates, in particular to a railway bridge deck cast-in-place side wall side template. Background Art

[0002] The ancillary facilities of railway bridge decks generally include ballast retaining walls, vertical walls and side walls, which are reinforced concrete structures and are usually cast in place after the main construction of the bridge is completed.

[0003] The ballast retaining wall is mainly used to block the ballast, and together with the vertical wall and the side wall, it forms two cable troughs. A cable trough cover is arranged on the cable trough. To prevent the cable trough cover from sliding off, the top surfaces of the ballast retaining wall and the side wall are respectively designed to be stepped, and a fracture is generally arranged every 2m on the ballast retaining wall, the vertical wall and the side wall.

[0004] In some design schemes, the outer side of the side wall needs to be flush with the edge of the bridge deck, but the edge of the bridge deck is not equipped with a prefabricated shield, resulting in the outer side formwork of the side wall having no supporting surface. In this case, the existing technical solution is to drill holes in the bridge deck on the inner side of the side wall to plant reinforcement to limit the inner side formwork of the side wall, fix the inner side formwork of the side wall by supporting and pulling, and then hoist the outer side formwork and reinforce it with the inner side formwork through the upper and lower through-wall tie rods, and transfer the weight of the outer side formwork and the concrete side pressure it receives to the inner formwork through the through-wall tie rods. The existing technical solution has the following deficiencies:

[0005] (1) When the side wall is high, the operator needs to lean out of the bridge deck when installing and removing the lower through-wall tie rod, which poses a great safety risk;

[0006] (2) The steel bars in the side wall are dense, and the through-wall tie rods are easily blocked by the steel bars, making alignment inconvenient;

[0007] (3) Before erecting the side wall formwork, it is necessary to drill holes in the bridge deck and plant reinforcement. After removing the side wall formwork, it is necessary to deal with the through-wall tie rod holes, which affects the appearance of the side wall and increases the workload.

[0008] (4) The side wall steps are fixed on the formwork and the height cannot be adjusted. The bridge deck at the formwork position needs to be leveled in advance according to the designed height, which increases the workload and the construction cost. Utility Model Content

[0009] The utility model provides a side formwork for a cast-in-place side wall of a railway bridge deck, which can solve the problem of side wall formwork erection under the condition that the outer side of the side wall is flush with the edge of the bridge deck, and can reduce operation safety risks, improve the efficiency of side formwork installation, and reduce construction costs.

[0010] To achieve the above purpose, the technical solution of the utility model is:

[0011] A cast-in-place side wall side form for a railway bridge deck, comprising:

[0012] A cantilever structure, comprising a cantilever beam and a slot assembly, wherein the suspended end of the cantilever beam extends to the outside of the bridge deck of the bridge body, and the fixed end is connected to the ballast retaining wall on the bridge deck by the slot assembly, and the slot assembly comprises an inner card plate, an outer card plate, an upper card plate and a plurality of jacking bolts, wherein the upper ends of the inner card plate and the outer card plate are connected to the fixed end of the cantilever beam, and the upper parts are connected with the upper card plate, and the jacking bolt can move in the horizontal direction, and the head can match and be fixed by the inner card plate or the outer card plate, and the tail can match and tighten the side of the ballast retaining wall;

[0013] An outer mold, the upper portion of which is detachably connected to the suspended end of the cantilever beam, and the inner side of which is in contact with the side edge of the bridge deck of the bridge body;

[0014] An inner mold, which is connected to the slot assembly in a supporting and pulling manner;

[0015] The support and tension rod assembly is used to realize the support and tension connection between the cantilever structure, the outer mold and the inner mold.

[0016] Furthermore, the inner mold includes an inner mold body, a step module and a step module positioning block, the step module positioning block is fixedly connected to the upper end of the inner mold body, the step module can slide up and down relative to the step module positioning block and can be fixed, and the lower end is arranged on the inner side surface of the inner mold.

[0017] Furthermore, the step module includes a rectangular tube and an auxiliary block, the lower end of the auxiliary block is connected to the rectangular tube, and the upper end is provided with a step module through hole, the step module positioning block is matched with a vertical oblong positioning block through hole, and the step module mounting bolts pass through the step module through hole and the positioning block through hole to fix the auxiliary block and the step module positioning block together.

[0018] Furthermore, the support rod assembly includes a Type A support rod, and the Type A support rod includes a round tube, a screw positioning nut, an L-shaped screw and an ear plate straight screw. The screw positioning nut is installed at both ends of the round tube, and the L-shaped screw and the ear plate straight screw are respectively threadedly connected with the screw positioning nuts at both ends of the round tube, and the outer end of the ear plate straight screw is penetrated by an ear plate through hole; the suspension end of the cantilever beam is penetrated by a support bolt hole, and the lower part of the outer mold is correspondingly provided with a second outer mold pin hole, and the second outer mold pin hole can match and insert the L-shaped screw, and the support bolt hole and the ear plate through hole can match and insert the ear plate mounting bolt to fix the cantilever beam and the upper end of the Type A support rod together.

[0019] Furthermore, the support rod assembly includes a Type B support rod, which includes a round tube, a screw positioning nut and an L-shaped screw. The screw positioning nut is installed at both ends of the round tube, and the two L-shaped screws are threadedly connected with the screw positioning nuts at both ends of the round tube respectively; the inner mold is provided with an inner mold pin hole, and the slot assembly is provided with a slot assembly pin hole on the side close to the inner mold, and the inner mold pin hole and the slot assembly pin hole can respectively match the L-shaped screws inserted at both ends of the Type B support rod.

[0020] Furthermore, the upper parts of the outer mold and the inner mold are respectively provided with a first outer mold pin hole and a first inner mold pin hole, and the first outer mold pin hole and the first inner mold pin hole can respectively match the L-shaped screws inserted into the two ends of the B-type support rod.

[0021] Furthermore, the outer mold includes an outer mold body and an outer mold back plate, the outer mold back plate is arranged at intervals on the outer side of the outer mold body, the upper end extends out of the outer mold body and is connected to the suspended end of the cantilever beam; the lower part of the outer mold back plate is connected to the A-type support rod.

[0022] Furthermore, the inner mold includes an inner mold body and an inner mold back strap plate, the inner mold back strap plate is spaced apart on the outer side surface of the inner mold body, and the inner mold back strap plate is connected to the B-type support rod; further, the outer mold includes an outer mold body and an outer mold back strap plate, the outer mold back strap plate is spaced apart on the outer side surface of the outer mold body, the upper end extends out of the outer mold body, and a first outer mold pin hole is provided on the upper part.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] 1. The utility model of the cast-in-place side wall side formwork of the railway bridge deck is fixed by the ballast retaining wall and the cantilever structure, which solves the problem of erecting the formwork under the condition that the outer side of the side wall is flush with the edge of the bridge deck. It does not need to drill holes on the bridge deck to plant reinforcement, does not affect the appearance of the side wall, reduces the workload of erecting the formwork, and thus can reduce construction costs.

[0025] 2. The lower part of the outer mold of the utility model is positioned and reinforced by a cantilever structure and a support rod assembly. No through-wall tie rod is provided, and workers do not need to lean out of the side wall. The installation and removal of the outer mold is safer and the work of handling the tie rod hole is omitted.

[0026] 3. The step module of the cast-in-place side wall side formwork of the railway bridge deck of the utility model is height-adjustable and can adapt to the elevation deviation of the bridge deck and the ballast retaining wall. Therefore, there is no need to level the bridge deck elevation at the inner side formwork erection position, which reduces the workload of erecting the formwork and thus can reduce construction costs.

[0027] 4. The slot assembly of the cantilever structure of the utility model is connected to the ballast retaining wall by means of a tightening bolt, and can adapt to the thickness deviation of the ballast retaining wall.

[0028] 5. The cantilever structure, the outer mold shoulder strap plate and the inner mold shoulder strap plate of the utility model are connected to each other through a support rod assembly. The support rod assembly can be supported and pulled, thereby realizing multiple functions such as template positioning, reinforcement support and convenient disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The utility model is a schematic diagram of the structure of the installation state of the cast-in-place side wall side formwork of the railway bridge deck.

[0030] Figure 2 It is a structural schematic diagram of the cantilever structure of the utility model.

[0031] Figure 3 It is a BB direction cross-sectional view of the cantilever structure of the utility model.

[0032] Figure 4 It is a cross-sectional view in the AA direction of the side formwork of the cast-in-place side wall of the railway bridge deck of the utility model.

[0033] Figure 5 It is a side schematic diagram of the outer side mold of the utility model.

[0034] Figure 6 It is a side schematic diagram of the inner mold of the utility model.

[0035] Figure 7 It is a cross-sectional view of the outer mold of the utility model in the CC direction.

[0036] Figure 8 It is a partial enlarged view of the D sample of the utility model.

[0037] Fig. 9 It is a structural schematic diagram of the type A support rod of the utility model.

[0038] Fig.10 It is a structural schematic diagram of the Type B support rod of the utility model.

[0039] In the figure, 11 is the main body of the bridge, 12 is the ballast retaining wall, and 13 is the side wall;

[0040] 2—cantilever structure, 21—cantilever beam, 210—cross beam, 211—suspension bolt hole, 212—support bolt hole, 213—double joint connecting plate, 22—inner card plate, 221—first card slot assembly pin hole, 222—second card slot assembly pin hole, 223—third card slot assembly pin hole, 23—outer card plate, 231—tightening bolt, 232—tightening nut, 24—upper card plate, 25—suspension bolt;

[0041] 3—outer mold, 31—outer mold panel, 32—outer mold rib plate, 33—outer mold flange plate, 34—outer mold back strap plate, 341—outer mold hanging hole, 342—first outer mold pin hole, 343—second outer mold pin hole;

[0042] 4—inner mold, 41—inner mold panel, 42—inner mold rib plate, 43—inner mold flange plate, 44—inner mold back strap plate, 441—first inner mold pin hole, 442—second inner mold pin hole, 443—third inner mold pin hole, 444—fourth inner mold pin hole, 45—step module, 451—rectangular tube, 452—auxiliary block, 46—step module positioning block, 47—step module mounting bolt;

[0043] 5—A-type support rod, 51—round tube, 511—rotation hole, 52—screw positioning nut, 53—straight screw, 54—ear plate, 55—ear plate mounting bolt, 56—L-shaped screw;

[0044] 6—the first B-type support rod, 7—the second B-type support rod, 8—the third B-type support rod, 9—the fourth B-type support rod. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] In the description of the present utility model, it should be noted that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present utility model.

[0047] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] like Figure 1As described, this embodiment discloses a side formwork for a cast-in-place side wall of a railway bridge deck, comprising a cantilever structure 2, an outer formwork 3, an inner formwork 4 and a support rod assembly, wherein the support rod assembly comprises a type A support rod 5, a first type B support rod 6, a second type B support rod 7, a third type B support rod 8, and a fourth type B support rod 9.

[0049] Continue to refer Figure 2 and Figure 3 In this embodiment, the cantilever structure 2 includes a cantilever beam 21 and a slot assembly. The suspended end of the cantilever beam 21 extends to the outside of the bridge deck of the bridge body 11. A slot assembly is provided below the fixed end, and the slot assembly is engaged with the ballast retaining wall 12 on the bridge deck through the slot assembly. More specifically, the slot assembly includes an inner card plate 22, an outer card plate 23, an upper card plate 24 and a tightening bolt 231, wherein the outer card plate 23 is closest to the middle of the bridge deck, and the inner card plate 22 is close to the inner side mold 4. The width of the slot formed between the inner card plate 22 and the outer card plate 23 is greater than the thickness of the ballast retaining wall 12. Therefore, the ballast retaining wall 12 can be matched and inserted into the slot, the upper ends of the inner and outer card plates 22 and 23 are connected to the fixed end of the cantilever beam 21, and the upper card plate 24 is connected between the upper parts. When the slot assembly is buckled from the top of the ballast retaining wall 12 for snap connection, the bottom of the upper card plate 24 abuts against the top of the ballast retaining wall 12, and a plurality of tightening bolts 231 are provided on one side of the outer card plate 23. The tightening bolts 231 can move in the horizontal direction, and the head can match and be fixed by the inner card plate 22 or the outer card plate 23, and the tail can match and tighten the side of the ballast retaining wall 12. The upper part of the outer mold 3 is detachably connected to the suspended end of the cantilever beam 21, and the inner side surface abuts against the side edge of the bridge deck of the bridge body 11. The bottom surface of the inner mold 4 abuts against the bridge deck of the bridge body 11, and is connected to the fixed end of the cantilever beam 21 in a supporting and pulling manner. The support and tension rod assembly is used to realize the support and tension connection between the cantilever structure 2, the outer mold 3, and the inner mold 4. In this embodiment, the inner mold 4 is supported and fixed by the cantilever structure 2, and the outer mold 3 is supported and fixed by the cantilever structure 2 and the inner mold 4. The distance between the outer mold 3 and the inner mold 4 is adaptively adjusted according to the thickness of the side wall 13 by adjusting the length of the support and tension rod assembly, thereby solving the problem of fixing the side wall formwork. In this way, without drilling holes in the bridge deck to plant reinforcement and without setting through-wall tie rods, the problem of erecting the formwork under the condition that the outer side of the side wall is flush with the edge of the bridge deck is solved.

[0050] It can be understood that the outer card plate 23 is penetrated, and the tail of the tightening bolt 231 can be abutted against the side of the ballast retaining wall 12 by screwing the tightening bolt 231, and the inner card plate 22 is in close contact with one side of the ballast retaining wall 12, thereby realizing the overall positioning and fixing of the cantilever structure 2. In addition, for the fixing of the outer card plate 23 to the tightening bolt 231, a corresponding threaded hole can be provided on one side of the outer card plate 23, or a plurality of tightening nuts 232 can be vertically fixed on one side of the outer card plate 23, and the threaded hole or the tightening nut 232 of the outer card plate 23 can meet the need of adjusting the position of the tightening bolt 231 left and right, and can fix the tightening bolt 231. According to actual needs, the tightening bolt 231 can also be separately set on one side of the inner card plate 22, and the specific setting method can refer to the setting method on the outer card plate 23.

[0051] The present embodiment also provides a preferred cantilever beam 21, which includes a cross beam 210, a suspension bolt hole 211 and a double-jointed connecting plate 213. The cross beam 210 can be made of channel steel. The two cross beams 210 are arranged in a mirror-symmetrical manner. The backs of the two cross beams 210 are parallel to each other and leave space for matching and inserting the upper part of the outer mold 3. The upper and lower parts of the two cross beams 210 are respectively connected by a plurality of double-jointed connecting plates 213, and the upper ends of the inner and outer card plates 22 and 23 are respectively connected to a double-jointed connecting plate 213. 13 fixed connection, easy to obtain materials and with good stress-bearing performance; the suspension bolt hole 211 is used to realize the suspension connection between the cantilever beam 21 and the outer side mold 3, and a suspension bolt 25 is set, passing through the suspension bolt hole 211 and the outer side mold 3, and tightening it can complete the suspension connection between the cantilever beam 21 and the outer side mold 3. More preferably, the suspension bolt hole 211 is set to a transverse oblong shape. After loosening the suspension bolt 25, the outer side mold 3 can move toward the transverse direction of the bridge body 11, which is convenient for the positioning and demoulding of the outer side mold 3.

[0052] Continue to refer Figure 4 , Figure 5In this embodiment, the outer mold 3 includes an outer mold panel 31, a plurality of outer mold ribs 32, an outer mold flange plate 33 and a plurality of outer mold back straps 34. The outer mold ribs 32 are arranged on the outer surface of the outer mold panel 31 at intervals, and the outer mold panel 31 and the outer mold ribs 32 form the outer mold body, which is a conventional structure. The outer mold ribs 32 are connected to the outer mold back straps 34 and are vertically arranged. The upper end is provided with an outer mold suspension hole 341. The upper end of the outer mold back strap 34 is inserted between the two cross beams 210. The suspension bolt 25 can simultaneously pass through the suspension bolt hole 211 on the cantilever beam 21 and the outer mold suspension hole 341 on the outer mold back strap 34, so that the outer mold 3 is suspended below the cantilever beam 21 in a detachable form. It can be understood that the outer mold 3 in this embodiment is provided with at least two outer mold strap plates 34, and the upper end of each outer mold strap plate 34 is detachably connected to the suspension end of a cantilever beam 21, so one outer mold 3 needs to be equipped with at least two cantilever beams 21 for suspension connection. In addition, the outer mold flange plates 33 are provided at both ends of the outer mold 3, which can be used to install the break plug plate or end plug plate of the side wall 13.

[0053] Continue to refer Figure 6 , Figure 7 , Figure 8 In this embodiment, the inner mold 4 includes an inner mold panel 41, an inner mold rib plate 42, an inner mold flange plate 43, and an inner mold back plate 44. The inner mold rib plates 42 are arranged on the outer side of the inner mold panel 41 at intervals in the horizontal direction. The inner mold panel 41 and the inner mold rib plates 42 form the inner mold body, which is a conventional structure. The bottom surface of the inner mold panel 41 abuts against the bridge deck of the bridge body 11. The inner mold rib plates 42 are connected to the inner mold back plates 44. The inner mold back plates 44 are arranged vertically, and the height does not exceed the cantilever structure 2 above it. The inner mold flange plates 43 are arranged at both ends of the inner mold 4, which can be used to install the break plug plate or end plug plate of the side wall 13.

[0054] In addition, the present embodiment is further provided with a step module 45, a step module positioning block 46, and a step module mounting bolt 47. The step module positioning block 46 is fixedly connected to the upper end of the inner mold body, the upper end of the step module 45 is detachably connected to the step module positioning block 46, the step module 45 can slide up and down relative to the step module positioning block 46 and can be fixed, and the lower end is arranged on the inner side surface of the inner mold 4. More specifically, the step module 45 includes a rectangular tube 451 and an auxiliary block 452, the upper end of the rectangular tube 451 is fixedly connected to the lower end of the auxiliary block 452, the step module positioning block 46 is fixedly connected to the inner mold rib plate 42 at the upper end of the inner mold panel 41, and the auxiliary block 452 is connected to the step module positioning block 46 through the step module mounting bolt 47. Furthermore, a step module through hole is provided at the upper end of the auxiliary block 452, and a vertical oblong positioning block through hole is provided in the step module positioning block 46 to match the step module through hole. The step module mounting bolt 47 passes through the step module through hole and the positioning block through hole to fix the auxiliary block 452 and the step module positioning block 46 together. The height difference between the rectangular tube 451 and the upper edge of the inner mold panel 41 can be adjusted by sliding up and down, which can adapt to a certain degree of bridge deck elevation deviation of the bridge body 11, thereby ensuring the installation elevation accuracy of the step module 45, and there is no need to level the bridge deck elevation at the mold erection position of the inner mold 4, thereby improving the efficiency of the inner mold 4 erection. It is worth noting that the step module positioning block 46 is preferably an unequal L-shaped structure to ensure that the oblong positioning block through hole of the step module positioning block 46 has a larger height adjustment range.

[0055] Continue to refer Figure 1 , Fig. 9 , Fig.10The present embodiment provides a preferred support rod assembly, which includes a type A support rod 5 and a type B support rod. Specifically, the type A support rod 5 includes a round tube 51, a screw positioning nut 52, an ear plate straight screw, an ear plate mounting bolt 55 and an L-shaped screw 56. The screw positioning nut 52 is installed at both ends of the round tube 51. The ear plate straight screw and the L-shaped screw 56 are respectively threadedly connected to the screw positioning nuts 52 at both ends of the round tube 51, and the outer end of the ear plate straight screw is penetrated by an ear plate through hole. Among them, the present embodiment provides a more preferred ear plate straight screw, which includes a straight screw 53 and an ear plate 54. One end of the straight screw 53 is threadedly connected to the screw positioning nut 52 The other end is fixedly connected to one end of the ear plate 54, and the other end of the ear plate 54 is provided with an ear plate through hole; the B-type support rod comprises a round tube 51, a screw positioning nut 52, and an L-shaped screw 56. The screw positioning nut 52 is installed at both ends of the round tube 51, and the two L-shaped screws 56 are respectively threadedly connected with the nuts 52 at both ends of the round tube 51. The nut 52 is connected to the threaded end of the L-shaped screw 56 or the threaded end of the ear plate straight screw to form a screw connection structure. When the round tube 51 rotates unidirectionally, the screw connection structures at both ends of the round tube 51 are simultaneously tightened inward or stretched outward, and a rotating hole 511 is provided on the round tube 51. Using a crowbar inserted into the rotating hole 511 can rotate the round tube 51 more quickly. In this embodiment, the cantilever structure 2 and the outer mold 3 are supported and connected by a type-A support rod 5, the type-B support rod includes a first type-B support rod 6, a second type-B support rod 7, a third type-B support rod 8 and a fourth type-B support rod 9, the outer mold 3 and the inner mold 4 are supported and connected by the fourth type-B support rod 9, and the inner mold 4 and the cantilever structure 2 are supported and connected by the first type-B support rod 6, the second type-B support rod 7 and the third type-B support rod 8. The support rod assembly can be supported and pulled, thereby realizing multiple functions such as template positioning, reinforcement support and convenient disassembly.

[0056] More specifically, the present embodiment provides an installation structure of a type A support rod 5, wherein the lower portion of the outer mold 3 and the suspended end of the cantilever beam 21 are diagonally supported by the type A support rod 5, a second outer mold pin hole 343 is provided at the lower portion of the outer mold 3, a support bolt hole 212 is provided at the suspended end of the suspension structure 2, the second outer mold pin hole 343 can match and insert the L-shaped screw 56, the cantilever structure 2 is provided with a support bolt hole 212, the support bolt hole 212 and the ear plate through hole can match and insert the ear plate mounting bolt 55 to fix the cantilever structure 2 and the upper end of the type A support rod 5 together, one end of the type A support rod 5 has a bolt fixing connection structure, which can prevent it from falling off during the mobile assembly process, when the outer mold 3 is installed, the type A support rod 5 is in an outwardly expanded state, and the inner side surface of the outer mold panel 31 can be made to abut against the side edge of the bridge body 11 by adjusting the type A support rod 5, the type A support rod 5 of the above structure and the matching installation structure are convenient for quick installation and disassembly.

[0057] More specifically, the present embodiment provides an installation structure for a first B-type support rod 6, a second B-type support rod 7 and a third B-type support rod 8. The inner mold 4 is provided with an inner mold pin hole, and the slot assembly is provided with a slot assembly pin hole on the side close to the inner mold 4. The inner mold pin hole and the slot assembly pin hole can respectively match the L-shaped screws 56 inserted into the two ends of the B-type support rod. The inner mold 4 is preferably provided with an inner mold pin hole on the inner mold back strap plate 44, and the slot assembly is preferably provided with a slot assembly pin hole on the inner card plate 22. The inner mold back strap plate 44 is provided with a first inner mold pin hole 441, a second inner mold pin hole 442, a third inner mold pin hole 443, and a fourth inner mold pin hole 444 from top to bottom, and the inner card plate 22 is provided with a first slot assembly pin hole 221, a second slot assembly pin hole 222, and a third slot assembly pin hole 223 from top to bottom, a second inner mold pin hole 442, a third inner mold pin hole 443, and a fourth inner mold pin hole The spacing between the two ends of the first card slot assembly 444 is greater than the spacing between the first card slot assembly pin hole 221, the second card slot assembly pin hole 222, and the third card slot assembly pin hole 223. The L-shaped screws 56 at both ends of the first B-type support rod 6 are respectively inserted into the second inner mold pin hole 442 and the first card slot assembly pin hole 221, the L-shaped screws 56 at both ends of the second B-type support rod 7 are respectively inserted into the third inner mold pin hole 443 and the second card slot assembly pin hole 222, and the L-shaped screws 56 at both ends of the third B-type support rod 8 are respectively inserted into the fourth inner mold pin hole 444 and the third card slot assembly pin hole 223. In addition, the first outer mold pin hole 342 is provided on the upper part of the outer mold 3, and the L-shaped screws 56 at both ends of the fourth B-type support rod 9 are respectively inserted into the first outer mold pin hole 342 and the first inner mold pin hole 441. The B-type support rods of the above structure are connected in an insertion form, which is convenient and quick. The first outer mold pin hole 342 of the outer mold 3 is preferably arranged on the upper part of the outer mold back strap plate 34 .

[0058] It can be understood that when the inner mold 4 is installed, the first B-type support rod 6 and the third B-type support rod 8 are in an outwardly expanded state, and the second B-type support rod 7 is in an inwardly tightened state, thereby achieving the positioning and fixation of the inner mold 4; in addition, the upper part of the outer mold 3 is connected to the upper part of the inner mold 4 by the fourth B-type support rod 9, thereby achieving the positioning and fixation of the upper part of the outer mold 3.

[0059] This embodiment also provides an application method of the cast-in-place side wall side formwork of a railway bridge deck, which specifically includes the following steps:

[0060] Step S1, the bridge deck ballast retaining wall 12 is cast and the reinforcement of the side wall 13 is tied.

[0061] Step S2, manufacturing and completing the separate assembly of the cantilever structure 2, the outer mold 3, the inner mold 4 and the supporting and tensioning components in sections.

[0062] Step S3, grinding and removing rust from the contact surfaces between the outer formwork panel 31, the inner formwork panel 41, the side wall joint plugging plate, the side wall plugging plate and the concrete, and cleaning them, and applying a release agent.

[0063] Step S4, use the suspension bolts 25 to suspend the outer mold 3 under the cantilever structure 2. At this time, the suspension bolts 25 are not tightened. Use the lifting equipment to lift the cantilever structure 2 and the outer mold 3 together, and move the suspension bolts 25 to the outermost side of the oblong suspension bolt hole 211, and then install the type A support rod 5.

[0064] Step S5, the inner formwork 4 of each segment is leaned obliquely against the steel reinforcement skeleton of the side wall 13 for preliminary positioning.

[0065] Step S6, use the lifting equipment to lift the assembly obtained in step S4, engage the fixed end of the cantilever beam 21 with the ballast retaining wall 12 from above, further adjust the verticality between the cantilever structure 2 and the ballast retaining wall 12, tighten the tightening bolts 232 on the outer clamping plate 23, and tighten it from the outer side of the ballast retaining wall 12 so that the inner clamping plate 22 is tightly attached to the inner side of the ballast retaining wall 12.

[0066] Step S7, use a crowbar to insert into the rotating hole 511 on the A-type support rod 5, and rotate the circular tube 51 in one direction to make the A-type support rod 5 become an outwardly expanded state, so as to make the inner side surface of the outer formwork panel 31 close to the side edge of the bridge deck of the bridge body 11.

[0067] Step S8, insert the two ends of the first B-type support rod 6 into the second inner mold pin hole 442 and the first slot assembly pin hole 221, insert the two ends of the second B-type support rod 7 into the third inner mold pin hole 443 and the second slot assembly pin hole 222, insert the two ends of the third B-type support rod 8 into the fourth inner mold pin hole 444 and the third slot assembly pin hole 223, rotate the round tube 51 of the above-mentioned support rod assembly to position the inner mold 4 to a preset position, at this time, the first B-type support rod 6 and the third B-type support rod 8 are both in an outwardly stretched state, and the second B-type support rod 7 is in an inwardly tightened state, thereby achieving force balance on the inner mold 4.

[0068] Step S9, insert both ends of the fourth B-type support rod 9 into the first outer mold pin hole 342 and the first inner mold pin hole 441, rotate the round tube 51 of the fourth B-type support rod 9 to position the upper part of the outer mold 3 to a preset position, and then tighten the suspension bolt 25.

[0069] Step S10, measure and adjust the top surface elevation of the rectangular tube 451 at the upper edge of the inner mold panel 41, and tighten the step module mounting bolts 47 after adjusting it into place.

[0070] Step S11, use bolts to fix the side wall gap plug plate or the end plug plate on the outer mold flange plate 33 and the inner mold flange plate 43, and now the installation of the side wall side mold of one section is completed.

[0071] Step S12, repeating steps S6 to S11, and completing the installation of the side wall formwork of all sections to be constructed.

[0072] Step S13, pouring side wall concrete in the side wall formwork.

[0073] Step S14, after the side wall concrete is cured to the demoulding strength, first remove the side wall fracture plug plate and the end plug plate, then loosen the suspension bolt 25, first rotate the round tube 51 of the type A support rod 5 so that it no longer supports and presses the lower part of the outer mold 3, and then rotate the round tube 51 of the fourth type B support rod 9 to support the upper part of the outer mold 3 outward, and separate it from the side wall concrete by a certain distance.

[0074] Step S15, respectively rotate the round tubes 51 of the first B-type support rod 6, the second B-type support rod 7, and the third B-type support rod 8, so that the three support rod assemblies become loose and then are removed.

[0075] Step S16, rotate the fourth B-type support rod 9 to loosen the upper part of the inner form 4 outward, and separate it from the side wall concrete by a certain distance, use square wood to diagonally support the inner form rib 42 from the root of the ballast retaining wall, and then remove the fourth B-type support rod 9.

[0076] Step S17, use lifting equipment to suspend the cantilever structure 2 without force, then loosen the tightening bolt 231 until its tail is close to the side of the outer clamping plate 23, lift the combination of the cantilever structure 2 and the outer mold 3, and transfer it to the bridge deck outside the ballast retaining wall and the side wall for disassembly, classification and placement, waiting for turnover use.

[0077] Step S18, use a lifting device to lift the inner mold 4, polish the inner mold panel 41, apply a release agent, and then use it in a circulating manner.

[0078] Step S19, repeating steps S2 to S18, can realize the turnover use of the utility model.

Claims

1. A cast-in-place side wall side form for a railway bridge deck, characterized in that: include: A cantilever structure, comprising a cantilever beam and a slot assembly, wherein the suspended end of the cantilever beam extends to the outside of the bridge deck of the bridge body, and the fixed end is connected to the ballast retaining wall on the bridge deck by the slot assembly, and the slot assembly comprises an inner card plate, an outer card plate, an upper card plate and a plurality of jacking bolts, wherein the upper ends of the inner card plate and the outer card plate are connected to the fixed end of the cantilever beam, and the upper parts are connected with the upper card plate, and the jacking bolt can move in the horizontal direction, and the head can match and be fixed by the inner card plate or the outer card plate, and the tail can match and tighten the side of the ballast retaining wall; An outer mold, the upper portion of which is detachably connected to the suspended end of the cantilever beam, and the inner side of which is in contact with the side edge of the bridge deck of the bridge body; An inner mold, which is connected to the slot assembly in a supporting and pulling manner; The support and tension rod assembly is used to realize the support and tension connection between the cantilever structure, the outer mold and the inner mold.

2. The cast-in-place side wall side form of the railway bridge deck according to claim 1, characterized in that: The inner mold includes an inner mold body, a step module and a step module positioning block. The step module positioning block is fixedly connected to the upper end of the inner mold body. The step module can slide up and down relative to the step module positioning block and can be fixed, and the lower end is arranged on the inner side surface of the inner mold.

3. The cast-in-place side wall side formwork for the railway bridge deck according to claim 2 is characterized in that: The step module includes a rectangular tube and an auxiliary block, the lower end of the auxiliary block is connected to the rectangular tube, and the upper end is provided with a step module through hole, the step module positioning block is matched with a vertical oblong positioning block through hole, and the step module mounting bolt passes through the step module through hole and the positioning block through hole to fix the auxiliary block and the step module positioning block together.

4. The cast-in-place side wall side form of the railway bridge deck according to claim 1, characterized in that: The support rod assembly includes a type A support rod, and the type A support rod includes a round tube, a screw positioning nut, an L-shaped screw and an ear plate straight screw. The screw positioning nut is installed at both ends of the round tube, and the L-shaped screw and the ear plate straight screw are respectively threadedly connected with the screw positioning nuts at both ends of the round tube, and the outer end of the ear plate straight screw is penetrated with an ear plate through hole; The hanging end of the cantilever beam is provided with a supporting bolt hole, and the lower part of the outer mold is correspondingly provided with a second outer mold pin hole, the second outer mold pin hole can match the insertion of the L-shaped screw, and the supporting bolt hole and the ear plate through hole can match the insertion of the ear plate mounting bolt to fix the cantilever beam and the upper end of the A-type support rod together.

5. The cast-in-place side wall side formwork for railway bridge deck according to claim 1, characterized in that: The support rod assembly includes a B-type support rod, and the B-type support rod includes a round tube, a screw positioning nut and an L-shaped screw. The screw positioning nut is installed at both ends of the round tube, and the two L-shaped screws are respectively threadedly connected with the screw positioning nuts at both ends of the round tube; The inner mold is provided with an inner mold pin hole, and the slot assembly is provided with a slot assembly pin hole on the side close to the inner mold. The inner mold pin hole and the slot assembly pin hole can respectively match the L-shaped screws inserted into the two ends of the B-type support rod.

6. The cast-in-place side wall side formwork for the railway bridge deck according to claim 5, characterized in that: The upper parts of the outer mold and the inner mold are respectively provided with a first outer mold pin hole and a first inner mold pin hole, and the first outer mold pin hole and the first inner mold pin hole can respectively match the L-shaped screws inserted into the two ends of the B-type support rod.

7. The cast-in-place side wall side formwork for a railway bridge deck according to claim 4, characterized in that: The outer mold includes an outer mold body and an outer mold back plate. The outer mold back plate is arranged at intervals on the outer side of the outer mold body, and the upper end extends out of the outer mold body and is connected to the suspended end of the cantilever beam; the lower part of the outer mold back plate is connected to the A-type support rod.

8. The cast-in-place side wall side formwork for a railway bridge deck according to claim 5 or 6, characterized in that: The inner mold includes an inner mold body and an inner mold back strap plate, the inner mold back strap plate is arranged at intervals on the outer side surface of the inner mold body, and the inner mold back strap plate is connected to the B-type support rod; further, the outer mold includes an outer mold body and an outer mold back strap plate, the outer mold back strap plate is arranged at intervals on the outer side surface of the outer mold body, the upper end extends out of the outer mold body, and a first outer mold pin hole is arranged on the upper part.

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