CN211522933U - Temporary locking structure for midspan closure section of cantilever casting box beam - Google Patents
Temporary locking structure for midspan closure section of cantilever casting box beam Download PDFInfo
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- CN211522933U CN211522933U CN201922321534.5U CN201922321534U CN211522933U CN 211522933 U CN211522933 U CN 211522933U CN 201922321534 U CN201922321534 U CN 201922321534U CN 211522933 U CN211522933 U CN 211522933U
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- 238000005266 casting Methods 0.000 title claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000005507 spraying Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 26
- 238000005096 rolling process Methods 0.000 description 18
- 239000004567 concrete Substances 0.000 description 9
- 239000000725 suspension Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a hang and water box girder midspan and fold section interim locking structure relates to bridge engineering technical field. The utility model discloses locate on watering the case roof beam, include: the fixed supporting beam, the stiff core connecting body and the box girder steel reinforcement cage which are pre-arranged in the poured box girder: the fixed roof beam both sides that prop are provided with flexible roof beam, the both sides of flexible roof beam that prop respectively are provided with a crossbeam baffle, the die block crossbeam, it is equipped with the erector rail to prop on the case roof beam to water, it is equipped with the erector rail that props in the slide rail to prop, the erector rail fit in has the roof beam to prop, roof beam erector rail one side is equipped with the erector rail, the lower surface of erector rail is provided with the side link plate, the side link plate is provided with rigid cover plate and bottom fagging towards watering the case roof beam side, the side link plate bottom is provided with recovery tank, be equipped with the spary. The utility model discloses a template is propped up and is established the structure atress simple to accessible die block accuse body carries out accurate control to the connection quality of case roof beam side form and case roof beam die block, has improved the template and has propped up the quality of establishing.
Description
Technical Field
The utility model relates to a can reduce the beam-ends chisel hair construction degree of difficulty, improve the template and prop up the quality of establishing, improve and fold section atress performance, protection construction environment's suspension casting box girder midspan and fold section temporary locking structure belongs to the bridge engineering field, is applicable to cast-in-place box girder construction engineering.
Background
With the rapid development of high and fast railways in China, the construction of bridge infrastructures has already stepped into the unprecedented high tide. The box girder bridge occupies an important position by the advantages of span arrangement, but the bridge has the problems of high construction platform erecting difficulty, great improvement on the quality effect of formwork erecting, difficulty in controlling the accuracy of pressure control in the jacking construction process and the like in the construction process.
The prior art has a temporary locking device for a folding section of a corrugated steel web combined box girder, and the temporary locking device mainly solves the technical problems of temporary locking and the like during construction of the folding section of the box girder. The steel connecting rods are four pairs; each pair of steel connecting rods is connected with the box girder through embedded parts embedded in two opposite ends of the box girder folding section; each pair of steel connecting rods are connected together through an outer sleeve and are positioned on the same horizontal plane. The utility model discloses a fold section temporary locking device is owing to adopt outer tube connection to connect the pole to every steel, connects the pole through four pairs of steel and directly will fold section case roof beam and carry out temporary locking, can effectively bear and bring pressure or pulling force because of changes such as temperature, has guaranteed going on smoothly of folding section construction to construction facility just saves steel, nevertheless lays the quality improvement at template bearing structure, improves the aspect such as work progress security, protection construction environment and still deposits and can promote the part.
In view of this, in order to further improve the construction quality of the closure section of the suspension casting box girder, the temporary locking structure of the midspan closure section of the suspension casting box girder, which can reduce the roughening construction difficulty of the girder end, improve the quality of formwork erection, improve the stress performance of the closure section and protect the construction environment, is urgently needed to be invented at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a not only can reduce the beam-ends chisel hair construction degree of difficulty, can improve the quality that the template was established moreover, can also improve the suspension casting box girder midspan that folds section atress performance, protection construction environment folds section temporary locking structure.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model provides a hang and water box girder midspan closure segment temporary locking structure, locates on having watered the box girder, includes: the fixed supporting beam, the stiff core connecting body and the box girder steel reinforcement cage which are pre-arranged in the poured box girder: the fixed roof beam both sides that prop are provided with flexible roof beam, the both sides of flexible roof beam that prop respectively are provided with a crossbeam baffle, the die block crossbeam, it is equipped with the erector rail to prop on the case roof beam to water, it is equipped with the erector rail that props in the slide rail to prop, the erector rail fit in has the roof beam to prop, roof beam erector rail one side is equipped with the erector rail, the lower surface of erector rail is provided with the side link plate, the side link plate is provided with rigid cover plate and bottom fagging towards watering the case roof beam side, the side link plate bottom is provided with recovery tank, be equipped with the spary.
Optionally, bottom die longitudinal beams are arranged at the bottoms of the poured box beams, inter-beam hanging plates are arranged between adjacent bottom die longitudinal beams, auxiliary supporting ribs and bottom die position control bodies are arranged on the bottom die transverse beams, the top ends of the auxiliary supporting ribs are connected with strut hanging beams, and triangular supports are arranged on the strut hanging beams.
Optionally, a strut hanging beam and a triangular support are arranged on the inner side of the poured box girder, a box girder inner mold is arranged on the triangular support, a box girder bottom mold is arranged on the bottom mold longitudinal beam, a box girder side mold is arranged on one side of the box girder bottom mold, and a split bolt is arranged between the box girder inner mold and the box girder side mold.
Optionally, the bottom die position control body comprises a position control body angle plate, a position control adjusting bolt and a position control body baffle, and a position control body diagonal brace is arranged between the position control body baffle and the bottom die cross beam.
Optionally, the cross section of the position control body angle plate is in an L shape, one end of the position control adjusting bolt is connected with the position control body angle plate, the other end of the position control adjusting bolt is connected with the position control body baffle, and the length of the position control adjusting bolt is adjustable.
Optionally, a beam end reinforcing plate is arranged on one side of the stiffening core connector, a stiffening core supporting column is arranged on the beam end reinforcing plate, a counter-force supporting column is arranged on the poured box beam, a column side cross beam is arranged on one side, close to the folding section, of the upper portion of the counter-force supporting column, an external stiffening core beam is arranged between the opposite counter-force supporting columns, one end of the external stiffening core beam is connected with a core beam limiting plate on the column side cross beam, the other end of the external stiffening core beam is connected with the column side cross beam, and a core beam supporting sleeve is arranged between the external stiffening core beam and the stiffening core supporting column.
Optionally, an elastic closing plate is arranged at the joint of the rigid cover plate and the poured box beam, an elastic closing plate is arranged at the joint of the bottom supporting plate and the poured box beam, and a water collecting connecting pipe is arranged between the bottom supporting plate and the recovery water tank.
Optionally, the spraying water pipe is a steel pipe or a PVC pipe, and is connected with an external water supply device.
Optionally, the upper surface and the lower surface of the stiffening core connector are both provided with stiffening core reinforcing plates, the extending end of the stiffening core connector is provided with a beam end reinforcing plate, a stiffening core connecting plate is arranged on the beam end reinforcing plate, and the cross section of the beam end reinforcing plate is in a U shape.
Optionally, the two sides of the stiff core connecting plate are provided with a built-in stiff core body and a stiff core connecting block, and the stiff core connecting plate is provided with a stiff core position control bolt.
The embodiment of the utility model has the following beneficial effect:
1. the utility model discloses an embodiment is through spary water pipe and water pipe shower nozzle to the surface of watering the case roof beam and chisel hair to adopt recovery tank synchronous recovery residual water, both can solve the influence of chisel hair face dust to follow-up concrete placement, can reduce the influence of chisel hair construction to external environment again.
2. The utility model discloses a template of an embodiment is propped up and is established structure atress simple to accessible die block accuse body carries out accurate control to the connection quality of case roof beam side form and case roof beam die block, has improved the template and has propped up the quality of establishing.
3. The embodiment of the utility model synchronously arranges the internal stiff core body and the external stiff core beam, and arranges the stiff core connecting body, the stiff connecting plate and the beam end reinforcing plate at the closure section of the box girder, thereby reducing the damage of the top pressure construction of the closure section to the poured box girder; and simultaneously, the utility model discloses adopt roof pressure machinery and strength core accuse position to tie in step and carry out the roof pressure construction, can promote the pressure control's in the roof pressure work progress degree of accuracy.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the construction of roughening the beam surface of the poured box according to an embodiment of the present invention;
fig. 2 is a schematic view of a supporting structure of a closure section template according to an embodiment of the present invention;
fig. 3 is a schematic view of a connection position control structure of a bottom beam mold and a side box beam mold according to an embodiment of the present invention;
fig. 4 is a schematic view of an installation construction structure of an internal stiffened core and an external stiffened core beam according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a fixed stay beam according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a telescopic supporting beam according to an embodiment of the present invention;
fig. 7 is a schematic view of a layout structure of a stiff core connector and a reaction force brace according to an embodiment of the present invention;
fig. 8 is a structural section view after completion of the folding segment concrete pouring construction according to an embodiment of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-box girder bottom die; 2, a box girder side mould; 3-box girder internal mold; 4-casting the box girder; 5-stiff core connectors; 6-box girder reinforcement cage; 7-bottom die cross beam; 8-fixing a supporting beam; 9-telescopic supporting beam; 10-beam baffles; 11-a bottom beam boom; 12-bottom die longitudinal beam; 13-vertical support slide rail; 14-vertical support sliding groove; 15-beam top vertical bracing; 16-vertical supporting plates; 17-hanging plates on the side; 18-a rigid cover plate; 19-bottom gusset plate; 20-a recovery water tank; 21-spraying a water pipe; 22-water pipe nozzle; 23-hanging plates between beams; 24-auxiliary supporting ribs; 25-bottom mold control body; 26-stiffening core reinforcement plates; 27-a strut hanging beam; 28-bottom beam hanging rod; 29-a tripod; 30-a built-in powerful core body; 31-stiff core connecting plates; 32-beam end stiffener; 33-stiff core position control bolt; 34-a counter-force brace; 35-stiff core bracing columns; 36-column side beams; 37-external stiffening core beams; 38-core beam limiting plate; 39-a jacking machine; 40-core beam bracing sleeves; 41-connecting blocks of stiff cores; 42-split bolts; 43-folding section concrete; 44-elastic obturation plates; 45-water collecting connecting pipe; 46-a retainer gusset; 47-position control adjusting bolt; 48-position control body baffle; 49-position control body inclined strut.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "middle", "length", "inner", etc. indicate positional or orientational relationships and are merely for convenience of description and simplicity of description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
On-spot hoist and mount construction technical requirement, the rolling of shaped steel and welding construction technical requirement, bolt-up construction technical requirement, concrete placement construction technical requirement etc. no longer give unnecessary details in this embodiment, the key explanation the utility model relates to an embodiment of method.
Referring to fig. 1-8, the temporary locking structure for the midspan closure segment of the cantilever casting box girder is characterized in that: presetting a stiffening core connecting body 5 and a box girder steel reinforcement cage 6 in the poured box girder 4; the two sides of the fixed supporting beam 8 are provided with telescopic supporting beams 9, and two sides of each telescopic supporting beam 9 are respectively provided with a beam baffle 10; the telescopic supporting beam 9 and the bottom die cross beam 7 are fixed at the height of the set calibration through the bottom beam hanger rod 11; the vertical support sliding rail 13 is connected with a beam top vertical support 15 through a vertical support sliding groove 14; arranging a vertical supporting plate 16 at the side of the concrete free face of the beam bottom close to the poured box beam 4; a side hanging plate 17 is arranged on the lower surface of the vertical supporting plate 16; a rigid cover plate 18 and a bottom supporting plate 19 are arranged on the side surface hanging plate 17 facing the poured box girder 4, and a recovery water tank 20 is arranged at the bottom end; the spraying water pipe 21 is arranged between the rigid cover plate 18 and the bottom supporting plate 19, and a water pipe spray head 22 is arranged at the end part of the spraying water pipe 21; an inter-beam hanging plate 23 is arranged between the adjacent bottom die longitudinal beams 12; auxiliary supporting ribs 24 and a bottom die position control body 25 are arranged on the bottom die cross beam 7, and the top ends of the auxiliary supporting ribs 24 are connected with a strut hanging beam 27; firstly, firmly connecting the bracket hanging beam 27 with the poured box beam 4 through the bottom beam hanging rod 28, and then arranging a triangular bracket 29 on the bracket hanging beam 27; the box girder bottom die 1 and the box girder side die 2 are sequentially hoisted to the bottom die longitudinal beam 12 and the triangular bracket 29 by adopting external hoisting equipment, and the connection condition of the corner parts of the box girder bottom die 1 and the box girder side die 2 is corrected by the bottom die control body 25; one end of the built-in stiffened core body 30 is connected with the stiffened core connecting plate 31 and the beam end reinforcing plate 32 in a welding way, and the other end is connected with the beam end reinforcing plate 32 through a stiffened core position control bolt 33; a counterforce supporting column 34 and a stiffening core supporting column 35 are respectively arranged on the poured box girder 4 and the girder end reinforcing plate 32, and a column side cross beam 36 is arranged on the counterforce supporting column 34 towards the folding section side; an external stiffening core beam 37 is arranged between the opposite reaction support columns 34, one end of the external stiffening core beam 37 is connected with a core beam limiting plate 38 on the column-side cross beam 36, and the other end is connected with the column-side cross beam 36 through a jacking machine 39; a core beam brace 40 is arranged between the external stiffening core beam 37 and the stiffening core brace 35; transverse jacking force is respectively applied to the built-in stiffened core body 30 and the poured box girder 4 through a stiffened core position control bolt 33, the external stiffened core beam 37 and the poured box girder 4 through a jacking machine 39, and a stiffened core connecting block 41 is inserted between the beam end reinforcing plate 32 and a stiffened core connecting plate 31 at the end part of the built-in stiffened core body 30; after the internal stiff core 30 and the external stiff core are completely jacked, a supporting frame hanging beam 27 and a triangular support 29 are arranged on the inner side of the poured box girder 4, the box girder inner mould 3 is arranged on the triangular support 29, and a split bolt 42 is arranged between the box girder inner mould 3 and the box girder side mould 2; and (3) checking the space positions and the connection strength of the bottom die 1, the side die 2 and the inner die 3 of the box girder, and then pouring the concrete 43 at the closure section.
Specifically, in this embodiment:
the box girder bottom die 1, the box girder side dies 2 and the box girder inner die 3 are all formed by rolling steel plates with the thickness of 4 mm.
The poured box girder 4 is a reinforced concrete box girder, and the concrete strength grade is C50.
The stiffening core connecting body 5 is formed by rolling H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8, stiffening core reinforcing plates 26 are arranged on the upper surface and the lower surface of the stiffening core connecting body, a beam end reinforcing plate 32 is arranged at the extending end, and a stiffening core connecting plate 31 is arranged on the beam end reinforcing plate 32; the stiffening core reinforcing plate 26, the stiffening core connecting plate 31 and the beam end reinforcing plate 32 are all formed by rolling steel plates with the thickness of 10 mm.
The box girder steel reinforcement cage 6 is formed by binding a threaded steel bar with the diameter of 32mm and a threaded steel bar with the diameter of 10 mm.
The bottom die cross member 7 is made of H-shaped steel having a specification of 300 × 300 × 10 × 15.
The fixed supporting beam 8 and the telescopic supporting beam 9 are both formed by rolling steel plates with the thickness of 2mm, and supporting beam sliding grooves for limiting the sliding of the telescopic supporting beam 9 are formed in two side edges of the fixed supporting beam 8.
The beam baffle 10 is formed by rolling a steel plate with the thickness of 10mm and is connected with the telescopic supporting beam 9 in a welding mode.
The bottom beam hanger rod 11 is cut by a screw rod with the diameter of 30 mm.
The bottom mold longitudinal beams 12 are H-shaped steel having a specification of 300 × 300 × 10 × 15.
The vertical support sliding rail 13 is formed by rolling a steel plate with the thickness of 2mm, and the width of the vertical support sliding rail is 50cm, and the height of the vertical support sliding rail is 10 cm; the upper surface of the vertical support sliding rail 13 is provided with a vertical support sliding groove 14, and the width and the height of the vertical support sliding groove 14 are respectively 30cm and 6 cm.
The beam top vertical support 15 is formed by rolling H-shaped steel with the specification of 200 multiplied by 8 multiplied by 12.
The vertical support plate 16 is formed by rolling a steel plate with the thickness of 10mm and the width of 200mm and is vertically welded and connected with the beam top vertical support 15.
The side hanging plate 17 is formed by rolling a steel plate with the thickness of 2mm and the width of 40 cm.
The spraying water pipe 21 is a steel pipe with the diameter of 10mm and is connected with external water supply equipment.
The water pipe nozzle 22 is a pressure nozzle.
The inter-beam hanging plate 23 is formed by rolling a steel plate with the thickness of 1 mm.
The auxiliary supporting ribs 24 are formed by rolling steel pipes with the diameter of 100 mm.
The bottom die control body 25 comprises a control body angle plate 46, a control position adjusting bolt 47 and a control position body baffle plate 48, and a control body inclined strut 49 is arranged between the control position body baffle plate 48 and the bottom die cross beam 7; wherein the control body angle plate 46 is formed by rolling a steel plate with the thickness of 10mm, and the cross section of the control body angle plate is L-shaped; the position control adjusting bolt 47 is formed by combining a screw rod with the diameter of 30mm and a bolt; the position control body baffle 48 and the position control body inclined strut 49 are both formed by rolling steel plates with the thickness of 10 mm.
The bracket hanging beam 27 is formed by rolling a steel plate with the thickness of 10mm, and the width of the bracket hanging beam is 50 cm.
The bottom beam hanging rod 28 is formed by cutting a screw rod with the diameter of 60 mm.
The triangular support 29 is formed by welding steel plates with the thickness of 10mm and the width of 10 cm.
The built-in rigid core body 30 adopts H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8, a rigid core connecting plate 31 is arranged at the end connected with the rigid core connecting block 41, and a rigid core position control bolt 33 is arranged on the rigid core connecting plate 31. The stiffening core position control bolt 33 is composed of a high-strength screw rod and a bolt with the diameter of 30mm, and the stiffening core connecting block 41 is made of H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8.
The reaction force supporting columns 34 and the stiffening core supporting columns 35 are both formed by rolling H-shaped steel with the specification of 250 multiplied by 9 multiplied by 14.
The column-side cross member 36 is rolled from a steel plate having a thickness of 20mm and a width of 20 cm.
The external stiffened core beam 37 is made of H-shaped steel with the specification of 150 × 150 × 7 × 10.
The core beam limiting plate 38 is formed by rolling a steel plate with the thickness of 10 mm.
The maximum pressure of the jacking mechanism 39 is 100 tons of hydraulic jack.
The core beam brace 40 is rolled by a screw rod with a diameter of 20 mm.
The split bolt 42 is formed by combining a high-strength screw rod with the diameter of 20mm and a bolt.
The concrete strength grade of the closing section concrete 43 is C50.
The above embodiments may be combined with each other.
It should be noted that in the description of the present specification, descriptions such as "first", "second", etc. are only used for distinguishing features, and do not have an actual order or meaning, and the present application is not limited thereto.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a hang and water temporary locking structure of case roof beam midspan closure segment, locates on case roof beam (4) of watering, its characterized in that includes: the fixed supporting beam (8), the stiff core connecting body (5) and the box girder steel reinforcement cage (6) which are pre-arranged in the poured box girder (4):
the fixed supporting beam (8) is provided with telescopic supporting beams (9) on two sides, two sides of each telescopic supporting beam (9) are provided with a beam baffle (10) and a bottom die beam (7), a vertical supporting slide rail (13) is arranged on the poured box beam (4), a vertical supporting slide groove (14) is arranged in each vertical supporting slide rail (13), a beam top vertical support (15) is matched in each vertical supporting slide groove (14), a vertical supporting plate (16) is arranged on one side of each beam top vertical support (15), a side hanging plate (17) is arranged on the lower surface of each vertical supporting plate (16), a rigid cover plate (18) and a bottom supporting plate (19) are arranged on the side of each side hanging plate (17) facing the poured box beam (4), a recovery water tank (20) is arranged at the bottom end of each side hanging plate (17), and a spray brushing water pipe (21) is arranged between each rigid cover.
2. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 1, wherein bottom mold longitudinal girders (12) are arranged at the bottom of the poured box girder (4), inter-girder hanging plates (23) are arranged between the adjacent bottom mold longitudinal girders (12), auxiliary supporting ribs (24) and bottom mold control bodies (25) are arranged on the bottom mold transverse girders (7), the top ends of the auxiliary supporting ribs (24) are connected with strut hanging girders (27), and triangular supports (29) are arranged on the strut hanging girders (27).
3. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 2, wherein a strut hanging beam (27) and a triangular bracket (29) are arranged on the inner side of the poured box girder (4), a box girder inner mold (3) is arranged on the triangular bracket (29), a box girder bottom mold (1) is arranged on the bottom mold longitudinal beam (12), a box girder side mold (2) is arranged on one side of the box girder bottom mold (1), and a split bolt (42) is arranged between the box girder inner mold (3) and the box girder side mold (2).
4. The temporary locking structure of the mid-span closure section of the suspended casting box girder as claimed in claim 2, wherein the bottom die control body (25) comprises a control body angle plate (46), a control position adjusting bolt (47) and a control position body baffle plate (48), and a control position body inclined strut (49) is arranged between the control position body baffle plate (48) and the bottom die cross beam (7).
5. The temporary locking structure of the mid-span closure section of the suspended casting box girder as claimed in claim 4, wherein the cross section of the position control angle plate (46) is "L" shaped, one end of the position control adjusting bolt (47) is connected with the position control angle plate (46), the other end of the position control adjusting bolt (47) is connected with the position control body baffle (48), and the length of the position control adjusting bolt (47) is adjustable.
6. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 1, wherein a girder end reinforcing plate (32) is arranged on one side of the stiffening core connector (5), a stiffening core bracing column (35) is arranged on the girder end reinforcing plate (32), a reaction bracing column (34) is arranged on the poured box girder (4), a column side cross beam (36) is arranged on one side of the upper part of the reaction bracing column (34) close to the closure section, an external stiffening core girder (37) is arranged between the opposite reaction bracing columns (34), one end of the external stiffening core girder (37) is connected with a core girder limiting plate (38) on the column side cross beam (36), the other end of the external stiffening core girder (37) is connected with the column side cross beam (36), and a core girder bracing sleeve (40) is arranged between the external stiffening core girder (37) and the stiffening core bracing column (35).
7. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 1, wherein an elastic sealing plate (44) is arranged at the joint of the rigid cover plate (18) and the poured box girder (4), an elastic sealing plate (44) is arranged at the joint of the bottom supporting plate (19) and the poured box girder (4), and a water collecting connecting pipe (45) is arranged between the bottom supporting plate and the recovery water tank (20).
8. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 1, wherein the spraying water pipe (21) is a steel pipe or a PVC pipe and is connected with an external water supply device.
9. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 1, wherein the upper surface and the lower surface of the stiffening core connector (5) are provided with stiffening core reinforcing plates (26), the extending end of the stiffening core connector (5) is provided with a girder end reinforcing plate (32), the girder end reinforcing plate (32) is provided with a stiffening core connecting plate (31), and the cross section of the girder end reinforcing plate (32) is in a U shape.
10. The temporary locking structure of the mid-span closure section of the cantilever box girder according to claim 1, wherein the stiffening core connecting plate (31) is provided with an internal stiffening core (30) and a stiffening core connecting block (41) at two sides, and the stiffening core connecting plate (31) is provided with a stiffening core position control bolt (33).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922321534.5U CN211522933U (en) | 2019-12-19 | 2019-12-19 | Temporary locking structure for midspan closure section of cantilever casting box beam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922321534.5U CN211522933U (en) | 2019-12-19 | 2019-12-19 | Temporary locking structure for midspan closure section of cantilever casting box beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113894952A (en) * | 2021-10-12 | 2022-01-07 | 山东高速集团有限公司创新研究院 | High-precision movable intelligent chiseling device for prefabricated hollow plate beam and using method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894952A (en) * | 2021-10-12 | 2022-01-07 | 山东高速集团有限公司创新研究院 | High-precision movable intelligent chiseling device for prefabricated hollow plate beam and using method |
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