CN112796202A - Bridge splicing structure and construction method thereof - Google Patents
Bridge splicing structure and construction method thereof Download PDFInfo
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- CN112796202A CN112796202A CN202110110406.5A CN202110110406A CN112796202A CN 112796202 A CN112796202 A CN 112796202A CN 202110110406 A CN202110110406 A CN 202110110406A CN 112796202 A CN112796202 A CN 112796202A
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- 238000010276 construction Methods 0.000 title claims abstract description 66
- 238000003466 welding Methods 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 230000002787 reinforcement Effects 0.000 claims description 12
- 230000004927 fusion Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 230000010485 coping Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000009417 prefabrication Methods 0.000 abstract description 9
- 239000000126 substance Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/005—Piers, trestles, bearings, expansion joints or parapets specially adapted for portable or sectional bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The invention relates to a bridge splicing structure and a construction method thereof. The bridge assembling structure comprises a bearing platform, pier columns, a cover beam, an upper panel and a lower panel. The bent cap is arranged at the top of the pier stud and is integrally prefabricated and molded with the pier stud. The upper panel is pre-buried in the bottom of pier stud, and the lower panel is used for connecting the pile foundation to pre-buried in the top of cushion cap, upper panel and lower panel are connected. And finishing the integral prefabrication construction of the bent cap and the pier stud in a prefabrication and assembly plant, and embedding an upper panel at the bottom of the pier stud. And finishing the pouring construction of the bearing platform and the pile foundation on site, and burying a lower panel at the top of the bearing platform in advance. The pier column and the capping beam are integrally transported to the position of the bearing platform, the upper panel and the lower panel are connected after being accurately aligned, and the pier column and the capping beam are integrally assembled with the bearing platform. Therefore, the assembly construction speed can be accelerated, and the bridge construction time is shortened.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a bridge splicing structure and a construction method thereof.
Background
With the rapid development of highway construction in China, the assembly construction is more and more used for the rapid construction of bridges, and the problems of environmental restriction, engineering progress and the like are smoothly solved by adopting a prefabrication and assembly technology. In the process of bridge construction, the construction process that the pier is connected with the bearing platform in an assembling mode and the capping beam is connected with the pier in an assembling mode is adopted, so that the construction time is prolonged.
Disclosure of Invention
Therefore, a bridge splicing structure and a construction method thereof are needed, which can accelerate the assembly construction and shorten the bridge construction time.
A bridge construction assembly comprising:
a bearing platform;
the coping is arranged at the top of the pier column and is integrally prefabricated and molded with the pier column; and
the upper panel and the lower panel, the upper panel bury in advance in the bottom of pier stud, the lower panel is used for connecting the pile foundation, and pre-buried in the cushion cap, the upper panel with the lower panel is connected.
In one embodiment, the periphery of the upper panel is welded with the periphery of the lower panel, and an interface bonding adhesive is poured between the upper panel and the lower panel.
In one embodiment, the bridge splicing structure further comprises a first connecting rib, a second connecting rib and a corrugated steel pipe, the corrugated steel pipe is arranged in the bearing platform, and the first connecting rib is arranged in the corrugated steel pipe; the second connecting rib is arranged at the bottom of the pier stud and connected with the first connecting rib.
In one embodiment, the bridge assembling structure further comprises stirrups, the stirrups are hooped at the bottom ends of the pier columns, and concrete is poured into the bottom ends of the pier columns.
In one embodiment, the bridge splicing structure further comprises a first shear connector and a second shear connector, wherein the first shear connector is welded to one side of the upper panel, which is far away from the lower panel, and is embedded in the pier stud; the second shear connector is welded on one side, away from the upper panel, of the lower panel and is embedded in the bearing platform.
In one embodiment, the upper panel is provided with a first through hole, the main upright post rib of the pier stud is arranged in the first through hole in a penetrating manner, and the main upright post rib is welded with the hole wall of the first through hole; the lower panel is provided with a second through hole for the pile foundation main reinforcement to pass through, and the hole wall of the second through hole is used for being welded with the pile foundation main reinforcement.
A construction method of a bridge splicing structure comprises the following steps:
integrally prefabricating and molding the pier stud and the capping beam, and embedding an upper panel at the bottom of the pier stud;
the bearing platform and the pile foundation are cast in situ, and a lower panel connected with the pile foundation is embedded at the top of the bearing platform;
and integrally moving the pier stud and the capping beam to the positions of the bearing platform and the pile foundation, accurately aligning the upper panel and the lower panel, and connecting the upper panel and the lower panel.
In one embodiment, the step of performing in-situ casting construction on the bearing platform and the pile foundation and pre-burying the lower panel connected with the pile foundation at the top of the bearing platform further comprises the following steps: pre-burying a steel corrugated pipe in the bearing platform, and arranging a first connecting rib in the steel corrugated pipe;
at the whole prefabricated shaping of pier stud and bent cap to in the step of the pre-buried upper panel in the bottom of pier stud, still include following step: embedding a second connecting rib at the bottom of the pier stud;
integrally move pier stud and bent cap to cushion cap and pile foundation position, make upper panel and following panel accurate counterpoint to after connecting the step of upper panel and lower panel, still include following step: and welding the first connecting rib and the second connecting rib, arranging a stirrup at the bottom end of the pier column for sealing, and finally pouring concrete at the bottom end of the pier column.
In one embodiment, the step of integrally transferring the pier stud and the capping beam to the position of the bearing platform and the pile foundation, precisely aligning the upper panel and the lower panel, and connecting the upper panel and the lower panel further comprises the following steps: the full-section welding of the single-side groove is adopted, the welding seam adopts first-stage fusion penetration welding, and interface bonding glue is poured between the upper panel and the lower panel.
In one embodiment, in the step of integrally prefabricating and forming the pier stud and the capping beam and embedding the upper panel at the bottom of the pier stud, the method further comprises the following steps: welding a first shear connecting key on one side of the upper panel, which is away from the lower panel, and embedding the upper panel with the first shear connecting key in the pier stud in advance;
in the bearing platform and pile foundation cast-in-place construction, and in the step of pre-burying the lower panel connected with the pile foundation at the top of the bearing platform, the method also comprises the following steps: and welding a second shear connecting key on one side of the lower panel, which is away from the upper panel, and embedding the lower panel with the second shear connecting key in the bearing platform.
According to the bridge assembling structure and the construction method thereof, the integral prefabrication construction of the bent cap and the pier stud is completed in a prefabrication and assembly chemical plant, and the upper panel is embedded at the bottom of the pier stud. And finishing the pouring construction of the bearing platform and the pile foundation on site, and burying a lower panel at the top of the bearing platform in advance. The pier column and the capping beam are integrally moved to the position of the bearing platform, the upper panel and the lower panel are connected after being accurately aligned, and therefore the pier column and the capping beam are integrally assembled with the bearing platform. Therefore, the speed of assembly construction can be increased, the construction efficiency is improved, and the newly-built construction time of the bridge is shortened. In addition, the bent cap and the pier stud are integrally prefabricated and molded, the upper panel and the lower panel are adopted to realize the connection between the pier stud and the bearing platform, and the construction connection precision can be improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be 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 to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a bridge assembly structure according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic plan view of the cap reinforcement structure shown in FIG. 1;
fig. 4 is a schematic plan view of the pier stud reinforcement structure shown in fig. 1;
fig. 5 is a flowchart of a construction method of a bridge erection structure according to an embodiment of the present invention.
Description of the drawings: 10. a bearing platform; 11. a lower panel; 12. a steel bellows; 13. a first connecting rib; 14. a second shear connector; 15. a second annular rib; 20. pier studs; 21. an upper panel; 22. a second connecting rib; 23. concrete; 24. a first shear connector; 25. a column main rib; 26. a first annular rib; 30. a capping beam; 40. a pile foundation; 41. and (5) pile foundation main reinforcement.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Referring to fig. 1 and 2, a bridge assembling structure according to an embodiment of the present invention includes a bearing platform 10, a pier stud 20, a cap beam 30, an upper panel 21, and a lower panel 11. The capping beam 30 is provided on the top of the pier stud 20 and is integrally prefabricated with the pier stud 20. The upper panel 21 is pre-buried in the bottom of pier stud 20, and lower panel 11 is used for connecting pile foundation 40 to pre-buried in the top of cushion cap 10, and upper panel 21 is connected with lower panel 11.
Optionally, the pier 20 is circular in cross-section. Of course, in other embodiments, the cross-section of the pier stud 20 can be rectangular, triangular, polygonal, oval, etc., and is not limited thereto.
According to the bridge assembly structure, the integral prefabrication construction of the bent cap 30 and the pier stud 20 is completed in a prefabrication and assembly chemical plant, and the upper panel 21 is embedded at the bottom of the pier stud 20. The construction of the platform 10 and the pile 40 is completed on site, and the lower panel 11 is buried in advance in the top of the platform 10. The pier column 20 and the bent cap 30 are integrally moved to the position of the bearing platform 10, the upper panel 21 and the lower panel 11 are connected after the upper panel 21 and the lower panel 11 are accurately aligned, and therefore the assembly connection of the pier column 20 and the bent cap 30 integrally with the bearing platform 10 can be achieved. Therefore, the speed of assembly construction can be increased, the construction time of newly-built bridges is shortened, and the construction efficiency is improved. In addition, the bent cap 30 and the pier stud 20 are integrally prefabricated and molded, and the upper panel 21 and the lower panel 11 are adopted to realize the assembly connection of the pier stud 20 and the bearing platform 10, so that the construction connection precision can be improved.
In one embodiment, referring to fig. 1 and 2, the periphery of the upper panel 21 is welded to the periphery of the lower panel 11, and an interfacial adhesive is poured between the upper panel 21 and the lower panel 11. Specifically, the upper panel 21 and the lower panel 11 adopt single-edge groove full-section welding, the welding seam adopts first-level fusion penetration welding, a filling hole is formed between the upper panel 21 and the lower panel 11, and interface bonding glue is filled into a space between the upper panel 21 and the lower panel 11 through the filling hole. In this way, the connection between the upper panel 21 and the lower panel 11 is completed, so that the connection between the upper panel 21 and the lower panel 11 is more secure, and the pier stud 20 and the cap beam 30 are integrally and firmly connected to the platform 10. In addition, the assembly connection of the pier stud 20 and the capping beam 30 integrally with the bearing platform 10 can be simplified, the construction difficulty is reduced, and the construction efficiency is improved.
In one embodiment, referring to fig. 1 and 2, the bridge assembling structure further includes a first connecting rib 13, a second connecting rib 22, and a corrugated steel pipe 12, the corrugated steel pipe 12 is pre-embedded in the bearing platform 10, and the first connecting rib 13 is disposed in the corrugated steel pipe 12. The second connecting rib 22 is provided at the bottom of the pier stud 20 and connected to the first connecting rib 13. Specifically, after the construction of the pile foundation 40 is completed, the lower panel 11 is arranged at the top of the pile foundation 40, the pile foundation main reinforcement 41, the lower panel 11 and the like are cast in situ together with the bearing platform 10 to complete the construction, the corrugated steel pipe 12 is vertically embedded in the bearing platform 10, and the first connecting reinforcement 13 is arranged in the corrugated steel pipe 12. So, wait to wholly move pier stud 20 and bent cap 30 to the position that cushion cap 10 was located to make the accurate back of counterpointing of top panel 21 and lower panel 11, weld first splice bar 13 in the corrugated steel pipe 12 and the second splice bar 22 of pier stud 20 bottom, can further consolidate the whole and cushion cap 10 of assembling of pier stud 20 and bent cap 30 like this and be connected, guarantee the structure atress of assembling the position department better. In addition, on the premise of ensuring the precision, the splicing connection of the whole pier stud 20 and the capping beam 30 and the bearing platform 10 can be simplified, the construction difficulty is reduced, the speed of assembling construction is increased, and the construction time of newly building a bridge is shortened.
Further, the structure is assembled to bridge still includes the stirrup, and the bottom of pier stud 20 is located to the stirrup hoop to concrete 23 has been poured into at the bottom of pier stud 20. Therefore, the integral assembling connection of the pier stud 20 and the bent cap 30 and the bearing platform 10 can be further reinforced, and the structural stress at the assembling position can be better ensured.
In one embodiment, referring to fig. 1 and 2, the bridge assembly structure further includes a first shear connector 24 and a second shear connector 14, wherein the first shear connector 24 is welded to a side of the upper panel 21 away from the lower panel 11 and embedded in the pier stud 20. The second shear connector 14 is welded to the side of the lower panel 11 away from the upper panel 21 and embedded in the platform 10. Like this, through set up first shear force connector 24 in the side that upper panel 21 deviates from lower panel 11, upper panel 21 can be connected with the concrete 23 of pier stud 20 better like this to make upper panel 21 firmly pre-buried in the bottom of pier stud 20. And, the second shear connector 14 is arranged on the side of the lower panel 11 away from the upper panel 21, so that the lower panel 11 can be better connected with the concrete 23 of the bearing platform 10, and the lower panel 11 is firmly embedded in the top of the bearing platform 10.
It should be noted that the number and the arrangement manner of the first shear connection key 24 and the second shear connection key 14 may be set according to actual requirements, and the number and the arrangement manner of the first shear connection key 24 and the second shear connection key 14 are not limited herein.
Optionally, the first shear connector 24 and the upper panel 21 are subjected to double groove welding, and the second shear connector 14 and the lower panel 11 are also subjected to double groove welding. In this manner, the first shear connector 24 is securely connected to the upper panel 21 and the second shear connector 14 is securely connected to the lower panel 11. Of course, in other embodiments, the first shear connector 24 and the second shear connector 14 may be connected to the upper panel 21 and the lower panel 11 respectively in other manners.
Specifically, in the present embodiment, referring to fig. 2, 3 and 4, a plurality of first shear connectors 24 and a plurality of second shear connectors 14 are provided, the plurality of first shear connectors 24 are disposed on the upper panel 21 at intervals in a ring shape, and the plurality of second shear connectors 14 are disposed on the lower panel 11 at intervals in a ring shape. The bridge assembling structure further comprises a first annular rib 26 and a second annular rib 15, the first annular rib 26 is hooped on the outer side of the first shear connector 24 which is annularly arranged, and the second annular rib 15 is hooped on the outer side of the second shear connector 14 which is annularly arranged. In this way, the first shear connection keys 24 arranged in an annular shape are connected through the first annular ribs 26, so that the upper panel 21 can be better connected with the pier stud 20; the second annular rib 15 connects a plurality of second shear connection keys 14 arranged in an annular shape, so that the lower panel 11 can be better connected with the bearing platform 10.
In one embodiment, referring to fig. 1 and 2, the upper panel 21 is provided with a first through hole, the pillar main rib 25 of the pillar 20 is inserted into the first through hole, and the pillar main rib of the pillar 20 is welded to the hole wall of the first through hole. The lower panel 11 is provided with a second through hole for the pile foundation main reinforcement 41 to pass through, and the hole wall of the second through hole is used for welding with the pile foundation main reinforcement 41. It will be appreciated that the stud 25 of the pier stud 20 is plug welded to the upper face plate 21 and the pile foundation main ribs 41 are plug welded to the lower face plate 11. Thus, the upper panel 21 can be firmly connected to the column main rib 25 of the pier column 20, so that the upper panel 21 is reliably embedded in the bottom of the pier column 20; the lower panel 11 can be firmly connected to the pile foundation main reinforcement 41, so that the lower panel 11 is reliably embedded in the bearing platform 10, and the pier stud 20 and the cap beam 30 are firmly and reliably connected with the bearing platform 10 in an assembling manner.
It should be noted that the number and the arrangement of the first through holes and the second through holes may be set according to actual requirements, and the number and the arrangement of the first through holes and the second through holes are not limited herein.
In one embodiment, referring to fig. 1, two piers 20 are provided, and the capping beam 30 is provided on the top of the two piers 20 and is integrally prefabricated with the two piers 20. Therefore, the integral assembling and connecting structure of the prefabricated double pier stud 20 and the bent cap 30 and the bearing platform 10 is formed. Of course, in other embodiments, the prefabricated pier column 20, the cap beam 30 and the bearing platform 10 are not limited to the double pier columns 20, but also can be applied to multiple pier columns 20.
Referring to fig. 1, 2 and 5, the construction method of the bridge erection structure according to an embodiment of the present invention includes the following steps:
s10, integrally prefabricating and molding the pier stud 20 and the cover beam 30, and embedding an upper panel 21 at the bottom of the pier stud 20;
s20, carrying out cast-in-place construction on the bearing platform 10 and the pile foundation 40, and pre-burying a lower panel 11 connected with the pile foundation 40 at the top of the bearing platform 10;
and S30, integrally moving the pier stud 20 and the capping beam 30 to the positions of the bearing platform 10 and the pile foundation 40, precisely aligning the upper panel 21 and the lower panel 11, and connecting the upper panel 21 and the lower panel 11.
It should be noted that, the method for precisely positioning the upper panel 21 and the lower panel 11 specifically includes the following steps: when the platform 10 is constructed, a control point is marked on the lower panel 11, for example, the center position of the lower panel 11 is marked, and a plurality of control coordinate points are marked with the center position as the origin. Meanwhile, the same number of control points are marked at corresponding positions of the upper panel 21. And moving the pier and the bent cap 30 to the position of the lower panel 11 of the bearing platform 10, so that the control point of the upper panel 21 is aligned with the control point of the lower panel 11, and the accurate positioning of the upper panel 21 and the lower panel 11 is realized. Specifically, in the present embodiment, the upper panel 21 and the lower panel 11 are circular plates, and mark a center point, and mark 8 coordinate points distributed along the circumferential direction of the lower panel 11. The same method is used to mark the same number of control points at the corresponding positions of the upper panel 21.
In the construction method of the bridge splicing structure, the integral prefabrication construction of the bent cap 30 and the pier stud 20 is completed in a prefabrication and assembly chemical plant, and the upper panel 21 is embedded at the bottom of the pier stud 20. The construction of the platform 10 and the pile 40 is completed on site, and the lower panel 11 is buried in advance in the top of the platform 10. The pier column 20 and the bent cap 30 are integrally moved to the position of the bearing platform 10, the upper panel 21 and the lower panel 11 are connected after the upper panel 21 and the lower panel 11 are accurately aligned, and therefore the pier column 20 and the bent cap 30 can be integrally assembled with the bearing platform 10. Therefore, the speed of assembly construction can be increased, and the construction time of newly-built bridges is shortened.
In one embodiment, in the step S30 of integrally moving the pier stud 20 and the cap beam 30 to the position of the platform 10 and the pile foundation 40, precisely aligning the upper and lower panels 21 and 11, and connecting the upper and lower panels 21 and 11, the method further comprises the following steps: the full-section welding of the single-side groove is adopted, the welding seam adopts first-stage fusion penetration welding, and interface bonding glue is poured between the upper panel 21 and the lower panel 11. In this way, the connection between the upper panel 21 and the lower panel 11 is completed, so that the connection between the upper panel 21 and the lower panel 11 is more secure, and the pier stud 20 and the cap beam 30 are integrally and firmly connected to the platform 10. In addition, the assembly connection of the pier stud 20 and the capping beam 30 integrally with the bearing platform 10 can be simplified, the construction difficulty is reduced, and the construction efficiency is improved.
In one embodiment, in step S10, where the pier stud 20 and the capping beam 30 are integrally prefabricated and formed, and the upper panel 21 is embedded in the bottom of the pier stud 20, the method further includes the following steps: and welding a first shear connecting key 24 on one side of the upper panel 21, which is far away from the lower panel 11, and embedding the upper panel 21 with the first shear connecting key 24 in the pier stud 20. Like this, through set up first shear force connector 24 in the side that upper panel 21 deviates from lower panel 11, upper panel 21 can be connected with the concrete 23 of pier stud 20 better like this to make upper panel 21 firmly pre-buried in the bottom of pier stud 20.
In one embodiment, the step S20 of performing the in-situ casting construction on the platform 10 and the pile foundation 40 and pre-burying the lower panel 11 connected to the pile foundation 40 on the top of the platform 10 further includes the following steps: and welding a second shear connector 14 on one side of the lower panel 11, which is far away from the upper panel 21, and embedding the lower panel 11 with the second shear connector 14 in the bearing platform 10. In this way, the second shear connection key 14 is arranged on the side, away from the upper panel 21, of the lower panel 11, so that the lower panel 11 can be better connected with the concrete 23 of the bearing platform 10, and the lower panel 11 is firmly embedded in the top of the bearing platform 10.
In one embodiment, in step S10, where the pier stud 20 and the capping beam 30 are integrally prefabricated and formed, and the upper panel 21 is embedded in the bottom of the pier stud 20, the method further includes the following steps: and embedding a second connecting rib 22 at the bottom of the pier stud 20. In step S20, the cast-in-place construction is performed on the bearing platform 10 and the pile foundation 40, and the lower panel 11 connected to the pile foundation 40 is embedded in the top of the bearing platform 10, further comprising the following steps: a corrugated steel pipe 12 is pre-embedded in the bearing platform 10, and a first connecting rib 13 is arranged in the corrugated steel pipe 12. After the step of integrally transferring the pier stud 20 and the cap beam 30 to the position of the pile foundation 40 and the cap block 10, precisely aligning the upper and lower panels 21 and 11, and connecting the upper and lower panels 21 and 11, the method further includes the step of S40: and welding the first connecting ribs 13 and the second connecting ribs 22, sealing the bottom end of the pier stud 20, and finally pouring concrete 23 at the bottom end of the pier stud 20. Therefore, the integral assembling connection of the pier stud 20 and the bent cap 30 and the bearing platform 10 can be further reinforced, and the structural stress at the assembling position can be better ensured. In addition, on the premise of ensuring the precision, the assembly connection of the pier stud 20 and the capping beam 30 with the bearing platform 10 can be simplified, the construction difficulty is reduced, the speed of assembly construction is increased, the construction efficiency is improved, and the construction time of newly building a bridge is shortened.
Specifically, in this embodiment, the construction method of the bridge splicing structure includes the following steps:
s10, integrally prefabricating and forming the pier column 20 and the cover beam 30, wherein a second connecting rib 22 is embedded at the bottom of the pier column 20; welding a first shear connector 24 on the upper panel 21, and embedding the upper panel 21 with the first shear connector 24 at the bottom of the pier column 20;
s20, carrying out cast-in-place construction on the bearing platform 10 and the pile foundation 40, welding a second shear connector 14 on the lower panel 11, and embedding the lower panel 11 with the second shear connector 14 on the top of the bearing platform 10 in advance; a corrugated steel pipe 12 is embedded in the bearing platform 10, and a first connecting rib 13 is arranged in the corrugated steel pipe 12;
and S30, integrally moving the pier stud 20 and the bent cap 30 to the positions of the bearing platform 10 and the pile foundation 40, accurately aligning the upper panel 21 and the lower panel 11, adopting single-edge groove full-section welding, adopting one-stage fusion welding for welding lines, and pouring interface bonding glue between the upper panel 11 and the lower panel 11 to complete the connection of the upper panel 21 and the lower panel 11.
S40, welding the first connecting ribs 13 and the second connecting ribs 22, arranging stirrups at the bottom ends of the pier studs 20 for sealing, and finally pouring concrete 23 at the bottom ends of the pier studs 20.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplification of the description, but not for convenience of description
The device or element so referred to must be in a particular orientation, constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A bridge splicing structure is characterized by comprising:
a bearing platform;
the coping is arranged at the top of the pier column and is integrally prefabricated and molded with the pier column; and
the upper panel and the lower panel, the upper panel bury in advance in the bottom of pier stud, the lower panel is used for connecting the pile foundation, and pre-buried in the cushion cap, the upper panel with the lower panel is connected.
2. The bridge assembling structure of claim 1, wherein the periphery of said upper panel is welded to the periphery of said lower panel, and an interfacial adhesive is poured between said upper panel and said lower panel.
3. The bridge assembling structure of claim 1, further comprising a first connecting rib, a second connecting rib and a corrugated steel pipe, wherein the corrugated steel pipe is arranged in the bearing platform, and the first connecting rib is arranged in the corrugated steel pipe; the second connecting rib is arranged at the bottom of the pier stud and connected with the first connecting rib.
4. The bridge assembling structure of claim 3, further comprising a stirrup, wherein the stirrup is arranged at the bottom end of the pier, and concrete is poured into the bottom end of the pier.
5. The bridge assembling structure according to any one of claims 1 to 4, further comprising a first shear connector and a second shear connector, wherein the first shear connector is welded to a side of the upper panel away from the lower panel and embedded in the pier stud; the second shear connector is welded on one side, away from the upper panel, of the lower panel and is embedded in the bearing platform.
6. The bridge assembling structure according to any one of claims 1 to 4, wherein the upper panel is provided with a first through hole, a main column rib of the pier column is arranged in the first through hole in a penetrating manner, and the main column rib is welded with a hole wall of the first through hole; the lower panel is provided with a second through hole for the pile foundation main reinforcement to pass through, and the hole wall of the second through hole is used for being welded with the pile foundation main reinforcement.
7. A construction method of a bridge splicing structure is characterized by comprising the following steps:
integrally prefabricating and molding the pier stud and the capping beam, and embedding an upper panel at the bottom of the pier stud;
the bearing platform and the pile foundation are cast in situ, and a lower panel connected with the pile foundation is embedded at the top of the bearing platform;
and integrally moving the pier stud and the capping beam to the positions of the bearing platform and the pile foundation, accurately aligning the upper panel and the lower panel, and connecting the upper panel and the lower panel.
8. The construction method of a bridge assembly structure according to claim 7, wherein in the step of cast-in-place construction of the bearing platform and the pile foundation and pre-burying a lower panel connected to the pile foundation in the top of the bearing platform, the construction method further comprises the steps of: pre-burying a steel corrugated pipe in the bearing platform, and arranging a first connecting rib in the steel corrugated pipe;
at the whole prefabricated shaping of pier stud and bent cap to in the step of the pre-buried upper panel in the bottom of pier stud, still include following step: embedding a second connecting rib at the bottom of the pier stud;
integrally move pier stud and bent cap to cushion cap and pile foundation position, make upper panel and following panel accurate counterpoint to after connecting the step of upper panel and lower panel, still include following step: and welding the first connecting rib and the second connecting rib, arranging a stirrup at the bottom end of the pier column for sealing, and finally pouring concrete at the bottom end of the pier column.
9. The construction method of a bridge assembly structure according to claim 7, wherein in the step of integrally transferring the pier stud and the cap beam to the position of the bearing platform and the pile foundation, precisely aligning the upper panel and the lower panel, and connecting the upper panel and the lower panel, the method further comprises the steps of: the full-section welding of the single-side groove is adopted, the welding seam adopts first-stage fusion penetration welding, and interface bonding glue is poured between the upper panel and the lower panel.
10. The construction method of the bridge assembly structure according to claim 7, wherein in the step of integrally prefabricating and molding the pier stud and the capping beam and embedding the upper panel at the bottom of the pier stud, the method further comprises the following steps: welding a first shear connecting key on one side of the upper panel, which is away from the lower panel, and embedding the upper panel with the first shear connecting key in the pier stud in advance;
in the bearing platform and pile foundation cast-in-place construction, and in the step of pre-burying the lower panel connected with the pile foundation at the top of the bearing platform, the method also comprises the following steps: and welding a second shear connecting key on one side of the lower panel, which is away from the upper panel, and embedding the lower panel with the second shear connecting key in the bearing platform.
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