CN216786863U - Cast-in-place box girder 0# block template system - Google Patents

Abstract

The utility model relates to a cast-in-place box girder 0# block template system, which comprises a steel pipe upright post supporting system, a flange bracket system, a 0# block bottom template and a 0# block unit type inner box template; the steel pipe upright post supporting system comprises steel pipe upright posts, double-spliced channel steel connecting rods, batten plates, double-spliced channel steel supporting joists and double-spliced steel plates; the bottom of the steel pipe upright post is connected with a bearing platform, the top of the steel pipe upright post is temporarily solidified with a bottom plate of the 0# box girder through a bottom plate anchor bar, and the top end of the steel pipe upright post is also connected with a double-spliced channel steel supporting joist and a double-spliced steel plate; the flange support system is supported on the top of the double-spliced channel steel supporting joist through a double-spliced channel steel pad beam and is positioned on the two transverse sides of the 0# box girder; the 0# block bottom die adopts a bamboo plywood bottom die, is arranged between the 0# block box girder and the batten and supports the 0# block box girder, and the 0# block unit type inner box body template is arranged in an inner box body of the 0# block box girder. This application construction convenience, the template is installed and removed conveniently, but 0# piece construction quality can be effectively ensured to the advantage of template cyclic utilization.

Description

Cast-in-place box girder 0# block template system

Technical Field

The utility model relates to the technical field of constructional engineering, in particular to a cast-in-place box girder 0# block template system.

Background

With the development of highway construction, the form of a bridge is continuously developed and updated, and currently, precast beams and cast-in-place continuous beams are common in bridge construction. The construction technology of the precast beam is mature, the construction method is basically the same, and the application is wide. The cast-in-place continuous beam, particularly the continuous beam pier top block constructed by utilizing the hanging basket, has a plurality of construction methods, so a plurality of factors such as external requirements, partial environments and the like need to be comprehensively considered when a scheme is formulated, different methods have different applicable scopes, and the key of construction is to adopt a reasonable and simple method.

The large-span continuous beam bridge is generally constructed by adopting a cantilever casting method, wherein the pier top comprises 0# blocks of embedded parts with complex segment structures, reinforcing steel bars, prestressed steel bundles in each direction, pore channels of the prestressed steel bundles and anchors of the prestressed steel bundles, the beam surface is provided with a longitudinal slope and a transverse slope, and the cross section is closely connected with a suspension casting section, so that the suspension casting construction of the continuous beam at the pier top section is a very important stage, and the construction must be carefully prepared. The temporary consolidation is one of important measures for ensuring the construction safety and stability of the continuous beam bridge cantilever, how to design the temporary consolidation enables the construction cost to be lower, the construction process to be simpler and more convenient, and the temporary consolidation is beneficial to the internal force, the disturbance degree and the stability of a bridge structure in the cantilever construction, which is an important problem in engineering design and construction control. The cantilever beam with the heavier beam body generally adopts a vertical concrete-filled steel tube support and vertical prestressed steel beam temporary consolidation system.

Therefore, a cast-in-place box girder 0# block template system capable of preventing common quality problems is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a cast-in-place box girder 0# block template system.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the cast-in-place box girder 0# block template body system comprises a steel pipe upright post supporting system, a flange bracket system, a 0# block bottom template and a 0# block unit type inner box template;

the steel pipe upright post supporting system comprises steel pipe upright posts arranged on two sides of the pier body, a double-spliced channel steel connecting rod arranged between two adjacent steel pipe upright posts, a batten plate used for fixing the double-spliced channel steel connecting rod and the steel pipe upright posts, a double-spliced channel steel supporting joist transversely arranged at the top ends of the steel pipe upright posts and a double-spliced steel plate longitudinally arranged at the top ends of the steel pipe upright posts; the bottom of the steel pipe upright post is connected with a bearing platform, and the top of the steel pipe upright post is temporarily and fixedly connected with a bottom plate of the 0# block box girder through a bottom plate anchor bar;

the flange bracket system is supported on the top of the double-spliced channel steel supporting joist through the double-spliced channel steel pad beam and is positioned on the two transverse sides of the 0# box girder, and the top of the flange bracket system is provided with a shaped steel die and a protective railing;

the No. 0 block bottom die adopts a bamboo plywood bottom die, is arranged between the No. 0 block box girder and the batten and supports the No. 0 block box girder;

the 0# block unit type inner box body template is arranged in an inner box body of the 0# block box girder;

0# piece case roof beam includes roof, web and the bottom plate that sets gradually from the top down, and before 0# piece case roof beam construction, roof, web and bottom plate department all are equipped with anchor bar and steel reinforcement cage.

Furthermore, the outer side face of the lower part near the top of the steel pipe upright post is welded with a double-spliced inclined strut, and the other end of the double-spliced inclined strut is supported at the bottom of the end part of the double-spliced steel plate.

And furthermore, a bracket is arranged between the steel pipe upright post and the double-spliced channel steel supporting joist.

Furthermore, the top of the steel pipe upright post is provided with a circumferential laying groove plate, and the top of the circumferential laying groove plate is provided with a laying groove, so that the bottom plate anchor bars of the bottom plate can penetrate into the bottom plate of the 0# block box girder and are welded with the bottom plate reinforcement cage of the 0# block box girder.

Further, edge of a wing support system includes diagonal bracing, vertical support rod and horizontal bracing piece, and horizontal bracing piece equipartition is between the vertical support rod in outside regularization steel mould and the outside, and diagonal bracing locates between the vertical support rod in the outside and the outside regularization steel mould.

Further, 0# piece die block evenly locates the vertical double pin channel-section steel and the double pin pad roof beam of support department of the horizontal both ends bottom of bottom plate including the symmetry, the vertical double pin channel-section steel top in the outside is equipped with horizontal double pin channel-section steel, vertical double pin channel-section steel, the double pin pad roof beam of support department and horizontal double pin channel-section steel top are equipped with the voussoir, the voussoir top is equipped with vertical distribution roof beam, vertical distribution roof beam top is equipped with the flitch of evenly arranging, the outside of vertical distribution roof beam is equipped with the protection railing, flitch top is equipped with the bamboo plywood die block.

Furthermore, the 0# block unit type inner box body template comprises an inner box chamber side die, an inner box chamber top die and an inner box chamber bottom die, and the butt joint positions of the inner box chamber side die, the inner box chamber top die and the inner box chamber bottom die are connected through plug templates to form a rectangular inner box chamber template system.

Furthermore, a first vertical supporting rod and a second vertical supporting rod are arranged between the inner box chamber top die and the inner box chamber bottom die.

Furtherly, the vertical solid flitch of multirow of pressure has evenly been laid on inner box room side form upper portion, vertical solid flitch upper portion of pressure is equipped with the horizontal solid channel-section steel of multirow, the horizontal solid channel-section steel top of pressure of multirow evenly laid a plurality of recesses, inner box room die block top is equipped with inner box room end clamp plate, inner box room die block clamp plate top evenly is equipped with the billet, the billet top of central authorities is equipped with the vertical support bar of second, the billet top of both sides is equipped with first vertical support bar, second vertical support bar and first vertical support bar top are equipped with the cushion, a die top layer board has been shelved to the cushion top, top layer board top is equipped with inner box room top mould.

Further, pier shaft top is equipped with the support, and this pier shaft is located cushion cap top central position.

The working principle and the beneficial effects are as follows: 1. the cast-in-place box girder 0# block module system has the advantages of novel and reasonable design, simple processing, convenient installation, flexible disassembly, effectively improved utilization rate and effectively ensured construction quality of the 0# block, thereby reducing the occurrence of common quality problems.

2. The temporary anchoring and support system for the internally-penetrated double-spliced steel pipe upright post effectively ensures the stability of the double-spliced channel steel supporting joist, can realize quick removal of temporary consolidation and shortens the construction period.

3. The 0# block unit type inner box template system is convenient to operate, can be quickly assembled and disassembled and can be quickly compressed, and the installation quality of the 0# block template is effectively guaranteed, so that the pouring quality of the 0# block box body is improved.

Drawings

FIG. 1 is a transverse elevation view of a No. 0 steel pipe bracket;

FIG. 2 is a construction drawing of a micro-embedded pre-buried steel plate structure;

FIG. 3 is a construction drawing of a double-spliced diagonal brace and a double-spliced steel plate structure;

FIG. 4 is a plan view of the steel pipe column 25 connection system;

FIG. 5 is a longitudinal elevation of the steel pipe column 25 connection system;

FIG. 6 is a structural view of an embedded welded steel plate;

FIG. 7 is a view showing a structure of a hoop resting groove plate;

FIG. 8 is a top view of the circumferential resting groove plate structure;

FIG. 9 is a construction drawing of the double-spliced steel plate passing through the steel pipe column;

FIG. 10 is a left side view of the assembled side forms of the inner box;

FIG. 11 is a construction drawing of a 0# block unit type inner box body formwork;

FIG. 12 is a construction view for installing the traverse jack;

FIG. 13 is a construction view for installing the diagonal jack;

FIG. 14 is a construction drawing of pressing the inner box chamber side mold by the transverse jack;

FIG. 15 is a bracket preload equivalent load distribution map;

FIG. 16 is a schematic view of the construction process of the present invention.

In the figure, 1, a groove; 2. an inner box chamber side mold; 3. transversely pressing and fixing the channel steel; 4. a plug template; 5. pressing a supporting plate at the corner; 6. an inner box chamber top die; 7. a first vertical support bar; 8. a second vertical support bar; 9. cushion blocks; 10. the transverse jack fixes the base; 11. a transverse jack telescopic rod; 12. 0# block box girder; 13. an inner cabinet; 14. a guard rail; 15. shaping the steel mould at the outer side; 16. the oblique jack fixes the base; 17. vertically pressing and fixing the batten; 18. the bottom double-spliced channel steel is supported; 19. a diagonal jack; 20. the double-spliced channel steel supports the joist; 21. a bottom die of the inner box chamber; 22. bracket; 23. a batten plate; 24. a double-spliced channel steel connecting rod; 25. a steel pipe upright post; 26. bottom fixing batten plates; 27. welding a fixing groove; 28. a bearing platform; 29. obliquely supporting; 30. pre-burying a steel plate; 31. pre-burying a fixing piece; 32. a top die top supporting plate; 33. pulling and fixing the steel wire rope; 34. a pier body; 35. double-spliced diagonal bracing; 36. double-spliced steel plates; 37. pressing and fixing the fixing piece; 38. a vertical support bar; 39. a wedge block; 40. vertical double-spliced channel steel; 41. a resting groove; 42. a bamboo plywood bottom die; 43. anchor bars of the bottom plate; 44. the support is provided with double-spliced pad beams; 45. a support; 46. pre-burying a welding steel plate; 47. wood block; 48. a longitudinal distribution beam; 49. transverse double-spliced channel steel; 50. placing the groove plates in an annular manner; 51. a flange bracket system; 52. a transverse support bar; 53. a diagonal jack; 54. a transverse jack; 55. prepressing a region A; 56. prepressing a B area; 57. prepressing a region C; 58. a base plate; 59. a web; 60. a top plate; 61. a bottom molding plate of the inner box chamber; 62. a chamfer of the inner box chamber; 63. a wood block; 64. and slightly embedding the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above terms should not be construed as limiting the present invention.

In the case of the example 1, the following examples are given,

as shown in fig. 1, the cast-in-place box girder 0# block formwork body system includes a steel pipe upright post supporting system, a flange bracket system 51, a 0# block bottom formwork and a 0# block unit type inner box formwork;

specifically, the steel tube upright post support system comprises steel tube upright posts 25 arranged on two sides of the pier body 34, a double-spliced channel steel connecting rod 24 arranged between two adjacent steel tube upright posts 25, a batten plate 23 used for fixing the double-spliced channel steel connecting rod 24 and the steel tube upright posts 25, a double-spliced channel steel support joist 20 transversely arranged at the top ends of the steel tube upright posts 25 and a double-spliced steel plate 36 longitudinally arranged at the top ends of the steel tube upright posts 25; the bottom of the steel pipe upright post 25 is connected with a bearing platform 28, and the top of the steel pipe upright post is temporarily and fixedly connected with a bottom plate 58 of the 0# block box girder 12 through a bottom plate anchor bar 43; the outer side surface of the lower part near the top of the steel pipe upright post 25 is welded with a double-spliced inclined strut 35, and the other end of the double-spliced inclined strut 35 is supported at the bottom of the end part of the double-spliced steel plate 36; a bracket 22 is arranged between the steel pipe upright post 25 and the double-spliced channel steel supporting joist 20; the top of the steel tube upright post 25 is provided with a circumferential shelving groove plate 50, the top of the circumferential shelving groove plate 50 is provided with a shelving groove 41, so that a bottom plate anchor bar 43 of a bottom plate 58 can penetrate into the bottom plate 58 of the 0# block box girder 12 and is welded with a bottom plate reinforcement cage of the 0# block box girder 12;

specifically, the flange bracket system 51 is supported on the top of the double-spliced channel steel supporting joist 20 through the double-spliced channel steel backing beam 18 and is positioned on the two transverse sides of the 0# block box girder 12, and the top of the flange bracket system is provided with a shaped steel die 15 and a protective railing 14; the flange bracket system 51 comprises an oblique support 29, a vertical support rod 38 and a transverse support rod 52, the transverse support rod 52 is uniformly distributed between the outer side stereotyped steel die 15 and the outermost vertical support rod 38, and the oblique support 29 is arranged between the outermost vertical support rod 38 and the outer side stereotyped steel die 15;

specifically, the 0# block bottom die adopts a bamboo plywood bottom die 42, is arranged between the 0# block box girder 12 and the batten 47 and supports the 0# block box girder 12;

specifically, the 0# block unit type inner box body template is arranged in an inner box body 13 of the 0# block box girder 12;

specifically, 0# piece case roof beam 12 includes roof 60, web 59 and the bottom plate 58 that sets gradually from top to bottom, and before 0# piece case roof beam 12 construction, roof 60, web 59 and bottom plate 58 department all are equipped with anchor bar and steel reinforcement cage.

In the case of the example 2, the following examples are given,

in this embodiment, with the structure of embodiment 1, as shown in fig. 16, the method for constructing a cast-in-place box girder 0# block formwork system includes the following construction steps:

s0, construction preparation: determining the sizes of an inner box chamber side die 2, a plug template 4, an inner box chamber top die 6 and an inner box chamber bottom die 21, prefabricating parts required for construction, such as a protective railing 14, an outer side stereotyped steel die 15, a double-spliced channel steel supporting joist 20 and a double-spliced steel plate 36, customizing an embedded steel plate 30, an embedded welding steel plate 46 and an annular shelving slot plate 50 in a factory, and the like;

s1, constructing the micro-embedded type embedded steel plate 30 and the embedded fixing piece 31: when the bearing platform 28 is constructed, the embedded steel plates 30 and the embedded fixing pieces 31 are symmetrically distributed at the tops of the bearing platform 28 on the two sides of the pier body 34, wherein the center of the top of each embedded steel plate 30 is provided with a micro-embedded groove 64, and the two ends of the top of each embedded steel plate 30 are also symmetrically provided with welding fixing grooves 27;

s2, embedding and welding steel plates 46 in the pier body 34: as shown in fig. 6, when the pier body 34 is constructed, pre-buried welded steel plates 46 are arranged on two sides near the top of the pier body 34;

in this step, a support 45 is arranged on the top of the pier body 34, and the pier body 34 is located at the center of the top of the bearing platform 28;

s3, mounting the steel pipe upright post 25: as shown in fig. 1-2 and 4-5, the bottom of the steel pipe column 25 is placed in the micro embedding groove 65 of the embedded steel plate 30, and then the steel pipe column 25 is welded in the welding fixing groove 27 by the bottom fixing batten plate 26; preferably, the pre-buried steel plate 30 is designed in a circular shape;

s4, welding and fixing the double-spliced steel: in the longitudinal direction of the 0# box girder 12, the double-spliced steel plate 36 passes through the preformed hole of the steel pipe upright post 25 and is welded and fixed with the embedded welding steel plate 46;

s5, installing a steel pipe upright post 25 connecting system: the double-spliced channel steel connecting rods 24 are arranged in the transverse direction and the longitudinal direction in the middle of the steel pipe upright columns 25 on the two sides of the pier body 34, and the double-spliced channel steel connecting rods 24 are welded on the inner side surfaces of the steel pipe upright columns 25 by using the batten plates 23 to form a steel pipe upright column 25 connecting system;

in this step, as shown in fig. 3, a double-spliced inclined strut 35 is welded on the outer side surface of the lower part near the top of the steel pipe upright post 25, and the other end of the double-spliced inclined strut 35 is supported at the bottom of the end part of the double-spliced steel plate 36;

s6, welding the double-spliced channel steel supporting joist 20: as shown in fig. 1 and 3, in the transverse direction of the 0# box girder 12, the double-spliced channel steel support joist 20 penetrates through a preformed hole at the top of the steel pipe upright 25, the bracket 22 is welded below the top of the steel pipe upright 25, and the other end of the bracket 22 is welded with the bottom of the end part of the double-spliced channel steel support joist 20;

s7, mounting the flange bracket system 51: uniformly distributing a bottom double-spliced channel steel backing beam 18 on the double-spliced channel steel supporting joist 20, and mounting a flange bracket system 51 at the top of the bottom double-spliced channel steel backing beam 18;

in this step, the flange bracket system 51 includes the diagonal braces 29, the vertical support bars 38 and the horizontal support bars 52, the horizontal support bars 52 are uniformly distributed between the outer-side shaped steel die 15 and the outermost vertical support bar 38, and the diagonal braces 29 are disposed between the outermost vertical support bar 38 and the outer-side shaped steel die 15;

in this embodiment, the flange bracket system 51 is placed above the double-spliced channel steel support joist 20, and the longitudinal distribution beam 48 is placed above the double-spliced steel plate 36 through the vertical double-spliced channel steel 40 and the double-spliced pad beam 44 at the support;

s8, installing the circumferential resting groove plate 50: as shown in fig. 7-8, a circumferential laying groove plate 50 is arranged on the top of the steel pipe upright 25 after the concrete is poured;

s9, installing an outer shaping steel die 15: installing an outer-side sizing steel die 15 and a protective railing 14 at the top of the flange bracket system 51;

in this embodiment, the outer sizing steel form 15 rests on the adjustable flange bracket system 51, and the bamboo veneer bottom form 42 rests on the longitudinal distribution beam 48;

s10, construction of a No. 0 block bottom die: as shown in fig. 5 and 9, vertical double-spliced channel steel 40 and a support double-spliced pad beam 44 are symmetrically and uniformly distributed on the top of a double-spliced steel plate 36, a transverse double-spliced channel steel 49 is arranged on the top of the vertical double-spliced channel steel 40 on the outermost side, wedges 39 are arranged on the tops of the vertical double-spliced channel steel 40, the support double-spliced pad beam 44 and the transverse double-spliced channel steel 49, a longitudinal distribution beam 48 is arranged on the top of each wedge 39, battens 47 are uniformly arranged above the top of the longitudinal distribution beam 48, guard rails 14 are arranged on the outermost side of the longitudinal distribution beam 48, and a bamboo plywood bottom die 42 is arranged above the top of each batten 47 to complete the construction of a No. 0 bottom die;

s11, pre-pressing the bracket system: connecting one end of a pulling and fixing steel wire rope 33 with the embedded fixing piece 31, and fixing the other end of the pulling and fixing steel wire rope above the top of the double-spliced channel steel supporting joist 20 by using a pressing and fixing piece 37 so as to form a bracket system with the flange bracket system 51, and carrying out ballast test on the bracket system by using a sand bag and steel bars;

in this step, as shown in fig. 15, the bracket pre-pressing system is divided into three pre-pressing areas, namely a pre-pressing area a 55, a pre-pressing area B56 and a pre-pressing area C57, wherein the weight of the pre-pressing area a 55 and the pre-pressing area C57 is equivalently pre-pressed by a ton bag, and the weight of the pre-pressing area B56 is equivalently pre-pressed by a steel bar;

during testing, the weight of the prepressing A area 55 is loaded firstly, then the weight of the prepressing B area 56 is loaded, and finally the weight of the prepressing C area 57 is loaded;

s12, placing the bottom plate anchor bars 43: placing the bound bottom plate anchor bars 43 in the holding grooves 41 in the center of the annular holding groove plate 50, so that the bottom plate anchor bars 43 penetrate into the bottom plates 58 of the 0# block box girders 12 and are welded with the bottom plate reinforcement cages of the 0# block box girders 12;

s13, construction of a 0# block unit type inner box chamber template system: as shown in fig. 10-14, a split heads is installed on a bottom plate reinforcement cage, the lower end of the split heads is supported on a bottom die concrete cushion block, an inner box chamber side die 2 and an inner box chamber bottom die 21 are installed on the split heads, an outer side stereotyped steel die 15 and the inner box chamber side die 2 are fastened by a pair of tie bars, and the butt joints of the inner box chamber side die 2, an inner box chamber top die 6 and the inner box chamber bottom die 21 are connected by a plug template 4 to form an inner box chamber template system;

the inner box chamber side molds 2 are tightly propped by adopting a transverse jack telescopic rod 11, and the plug mold plate 4 is tightly propped by adopting an oblique jack 19; a first vertical support rod 7 and a second vertical support rod 8 are arranged between the inner box chamber top die 6 and the inner box chamber bottom die 21;

the inner box chamber side die 2, the plug die plate 4, the inner box chamber top die 6 and the inner box chamber bottom die 21 form a unit type inner box chamber 13 die plate system of the 0# block box girder 12, the unit type inner box chamber 13 is arranged in the inner box chamber die plate system, a web 59 located at the top of the bottom plate 58 is arranged outside the inner box chamber side die 2, the top of the web 59 is provided with a top plate 60, the inner box chamber side die 2 is located on the inner side of the web 59 at the position of the inner box chamber 13, the inner box chamber bottom die 21 is located above the top of the bottom plate 58 of the 0# block box girder 12, the plug die plate 4 is arranged at a chamfer 62 of the inner box chamber, and the inner box chamber top die 6 is arranged below the top of the inner box chamber 13;

in the step, a plurality of rows of vertical pressing battens 17 are uniformly distributed on the upper part of the inner box chamber side mold 2, a plurality of rows of transverse pressing channel steel 3 are arranged on the upper part of the vertical pressing battens 17, and a plurality of grooves 1 are uniformly distributed on the tops of the plurality of rows of transverse pressing channel steel 3;

the top of the inner box chamber bottom die 21 is provided with an inner box chamber bottom die pressing plate 61, the top of the inner box chamber bottom die pressing plate 61 is uniformly provided with wood cushion blocks 63, the top of the central wood cushion block 63 is provided with a second vertical supporting rod 8, the tops of the wood cushion blocks 63 at two sides are provided with first vertical supporting rods 7, the tops of the second vertical supporting rod 8 and the first vertical supporting rod 7 are provided with cushion blocks 9, a top die top supporting plate 32 is placed above the cushion blocks 9, and an inner box chamber top die 6 is arranged above the top die top supporting plate 32;

the outer side of the first vertical supporting rod 7 is symmetrically provided with oblique jack fixing bases 16, the tops of the oblique jack fixing bases 16 are provided with oblique jacks 19, telescopic rods of the oblique jacks 19 are pressed and fixed at the bottoms of vertical pressing and fixing battens 17, the tops of the vertical pressing and fixing battens 17 are provided with corner pressing and supporting plates 5, and the tops of the corner pressing and supporting plates 5 are provided with plug templates 4;

the two sides of the second vertical supporting rod 8 are symmetrically provided with transverse jack fixing bases 10, the top of each transverse jack fixing base 10 is provided with a transverse jack 54, the top of each transverse jack 54 is provided with a transverse jack telescopic rod 11, and the other end of each transverse jack telescopic rod 11 is pressed and fixed in the corresponding groove 1;

s14, casting the No. 0 concrete and dismantling the bottom die: the grouting pipe is deeply inserted into the position of a web 59, the bottom plate concrete of the 0# block box girder 12 is poured, then the web concrete and the top plate concrete are poured, and after the longitudinal prestress tensioning of the 0# block box girder 12 is finished, the 0# block bottom mould is dismantled to finish the pouring construction of the 0# block concrete;

s15, dismantling the bracket system: and sequentially removing the pressing and fixing piece 37, the steel pipe upright post 25 connecting system, the bottom plate anchor bar 43 and the steel pipe upright post 25.

The present invention is not described in detail in the prior art, and therefore, the present invention is not described in detail.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Although the use of the term in the present text is used more often, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present application, fall within the protection scope of the present invention.

Claims (10)

1. The cast-in-place box girder 0# block template system is characterized by comprising a steel pipe upright post supporting system, a flange bracket system (51), a 0# block bottom die and a 0# block unit type inner box body template;

the steel pipe upright post supporting system comprises steel pipe upright posts (25) arranged on two sides of a pier body (34), a double-spliced channel steel connecting rod (24) arranged between two adjacent steel pipe upright posts (25), a batten plate (23) used for fixing the double-spliced channel steel connecting rod (24) and the steel pipe upright posts (25), a double-spliced channel steel supporting joist (20) transversely arranged at the top ends of the steel pipe upright posts (25) and a double-spliced steel plate (36) longitudinally arranged at the top ends of the steel pipe upright posts (25); the bottom of the steel pipe upright post (25) is connected with a bearing platform (28), and the top of the steel pipe upright post is temporarily and fixedly connected with a bottom plate (58) of the 0# block box girder (12) through a bottom plate anchor bar (43);

the flange bracket system (51) is supported on the top of the double-spliced channel steel supporting joist (20) through a double-spliced channel steel pad beam (18) and is positioned on the two transverse sides of the 0# box girder (12), and the top of the flange bracket system is provided with a shaped steel die (15) and a protective railing (14);

the 0# block bottom die adopts a bamboo plywood bottom die (42), is arranged between the 0# block box girder (12) and the batten (47) and supports the 0# block box girder (12);

the 0# block unit type inner box body template is arranged in an inner box body (13) of the 0# block box beam (12);

0# piece case roof beam (12) include roof (60), web (59) and bottom plate (58) that set gradually from the top down before 0# piece case roof beam (12) construction, roof (60), web (59) and bottom plate (58) department all are equipped with anchor bar and steel reinforcement cage.

2. The cast-in-place box girder 0# block formwork system according to claim 1, wherein a double-spliced diagonal brace (35) is welded on the outer side surface of the lower portion near the top of the steel pipe upright post (25), and the other end of the double-spliced diagonal brace (35) is supported at the bottom of the end portion of the double-spliced steel plate (36).

3. The cast-in-place box girder 0# block formwork system according to claim 1, wherein a bracket (22) is arranged between the steel pipe upright (25) and the double-spliced channel steel supporting joist (20).

4. The cast-in-place box girder 0# block formwork system according to claim 1, wherein the top of the steel pipe upright (25) is provided with a circumferential groove plate (50), and the top of the circumferential groove plate (50) is provided with a resting groove (41), so that the bottom plate anchor bars (43) of the bottom plate (58) can penetrate into the bottom plate (58) of the 0# block box girder (12) and can be welded with the bottom plate reinforcement cage of the 0# block box girder (12).

5. The cast-in-place box girder 0# block formwork system according to claim 1, wherein the flange bracket system (51) comprises an oblique support (29), a vertical support rod (38) and a transverse support rod (52), the transverse support rod (52) is uniformly distributed between the outer side finalized steel die (15) and the outermost vertical support rod (38), and the oblique support (29) is arranged between the outermost vertical support rod (38) and the outer side finalized steel die (15).

6. The cast-in-place box girder 0# block formwork system according to claim 1, wherein the 0# block bottom formwork comprises vertical double-spliced channel steel (40) and support double-spliced pad beams (44) which are symmetrically and uniformly arranged at the bottoms of the two transverse ends of a bottom plate (58), the top of the vertical double-spliced channel steel (40) at the outermost side is provided with a transverse double-spliced channel steel (49), wedge blocks (39) are arranged at the tops of the vertical double-spliced channel steel (40), the support double-spliced pad beams (44) and the transverse double-spliced channel steel (49), the top of each wedge block (39) is provided with a longitudinal distribution beam (48), battens (47) which are uniformly arranged are arranged above the top of each longitudinal distribution beam (48), the outermost side of each longitudinal distribution beam (48) is provided with a guardrail (14), and a bamboo protective rubber plate bottom formwork (42) is arranged above the top of each batten (47).

7. The cast-in-place box girder 0# block formwork system according to claim 1, wherein the 0# block unit type inner box body formwork comprises an inner box chamber side formwork (2), an inner box chamber top formwork (6) and an inner box chamber bottom formwork (21), and the butt joint of the inner box chamber side formwork (2), the inner box chamber top formwork (6) and the inner box chamber bottom formwork (21) is connected through a plug formwork (4) to form a rectangular inner box chamber formwork system.

8. The cast-in-place box girder 0# block formwork system according to claim 7, wherein a first vertical support bar (7) and a second vertical support bar (8) are arranged between the inner box chamber top formwork (6) and the inner box chamber bottom formwork (21).

9. The cast-in-place box girder 0# block template system according to claim 8, wherein a plurality of rows of vertical press battens (17) are uniformly distributed on the upper portion of the inner box chamber side mold (2), a plurality of rows of transverse press channel steel (3) are arranged on the upper portion of the vertical press battens (17), a plurality of grooves (1) are uniformly distributed on the tops of the plurality of rows of transverse press channel steel (3), an inner box chamber bottom mold plate (21) is arranged on the top of the inner box chamber bottom mold plate (21), a wood cushion block (63) is uniformly arranged on the top of the inner box chamber bottom mold plate (61), a second vertical support rod (8) is arranged on the top of the central wood cushion block (63), first vertical support rods (7) are arranged on the tops of the wood cushion blocks (63) on two sides, cushion blocks (9) are arranged on the tops of the second vertical support rod (8) and the first vertical support rod (7), a top mold top supporting plate (32) is placed above the cushion blocks (9), an inner box chamber top die (6) is arranged above the top die top supporting plate (32).

10. The cast-in-place box girder 0# block formwork system according to any one of claims 1 to 9, wherein a support (45) is arranged at the top of the pier body (34), and the pier body (34) is positioned at the center of the top of the bearing platform (28).

Images