CN117230694A - Full-prefabricated detachable assembled steel-concrete composite beam structure and construction method - Google Patents
Full-prefabricated detachable assembled steel-concrete composite beam structure and construction method Download PDFInfo
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- CN117230694A CN117230694A CN202311214789.6A CN202311214789A CN117230694A CN 117230694 A CN117230694 A CN 117230694A CN 202311214789 A CN202311214789 A CN 202311214789A CN 117230694 A CN117230694 A CN 117230694A
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- 239000004567 concrete Substances 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 293
- 239000010959 steel Substances 0.000 claims abstract description 293
- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 11
- 239000011150 reinforced concrete Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 8
- 238000010008 shearing Methods 0.000 description 18
- 238000007791 dehumidification Methods 0.000 description 10
- 230000008901 benefit Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a fully prefabricated detachable assembled steel-concrete composite beam structure and a construction method, wherein the composite beam structure comprises a bridge deck, a shear connector, a steel flange plate and a steel box girder, wherein the steel flange plate is fixed on the top of the steel box girder, the bridge deck comprises a bridge deck plate surface and a bridge deck plate bulge at the bottom of the bridge deck plate surface, the shear connector comprises a top plate bolt, channel steel, a web bolt, a bottom plate bolt and an open pore plate, the channel steel is arranged on two sides of the bridge deck plate bulge in pairs through the bottom plate bolt, the channel steel comprises a vertical web plate and a parallel top plate and bottom plate, the top plate bolt passes through the top plate and the bridge deck plate surface to be fixed, the bottom plate is fixed with the steel flange plate bolt, the web bolt transversely passes through the web plate, the open pore plate and the bridge deck plate bulge, the open pore plate is arranged on the steel flange plate, two ends of the web bolt are fixed on the channel steel web plate, and the top plate bolt and the web bolt transmit the born shear force to the steel box girder through the channel steel and the open pore plate, so that the problems of easy welding fatigue and inconvenient disassembly and maintenance of the traditional shear connector are solved.
Description
Technical Field
The invention relates to the technical field of reinforced concrete composite beams, in particular to a fully prefabricated detachable assembled reinforced concrete composite beam structure and a construction method.
Background
The steel structure and the concrete structure have the advantages of light weight, high strength, convenient factory standardized prefabrication, high construction precision and the like, the concrete structure has the advantages of high rigidity, good fireproof performance, low manufacturing cost and the like, and the steel-concrete composite structure fully utilizes the mechanical properties of the steel and the concrete structure and has the advantage of larger structure, so that the steel-concrete composite beam is widely applied to bridges, but the traditional structure has the problems of poor fatigue resistance and difficult repairing of connecting pieces, and the fully prefabricated detachable assembled steel-concrete composite beam structure and the construction method are provided based on the reasons.
The prior art has several disadvantages: (1) The conventional steel-concrete composite beam generally connects a steel structure and a concrete structure in a form of welding a welding pin on the surface of the steel structure and embedding the welding pin in the concrete structure, and has a problem of welding fatigue at the root of the welding pin; (2) The traditional steel-concrete composite beam has the advantages that after the construction of the steel structure is finished, the bridge deck is installed on site, the installation precision between the steel structure and the bridge deck is poor, and part of concrete at the position of the shearing-resistant connecting piece is required to be poured on site, so that the construction speed is reduced, and the industrialization degree is low; (3) The traditional steel-concrete composite beam can be repaired after the steel structure is damaged, particularly after the shearing-resistant connecting piece is damaged, and the steel structure is difficult to disassemble.
Disclosure of Invention
In order to meet the above defects or improvement demands of the prior art, the invention provides a fully prefabricated detachable assembled steel-concrete composite beam structure and a construction method, the fully prefabricated assembled steel-concrete composite beam structure comprises a bridge deck, shear connectors, steel flange plates and steel box girders, wherein the steel flange plates are fixed at the tops of the steel box girders, the bridge deck is installed on the steel flange plates through the shear connectors, the shear connectors comprise top plate bolts, channel steels, web bolts, bottom plate bolts and open pore plates, the channel steels are fixed on the steel flange plates, the channel steels are used for replacing traditional pouring templates, the function of transferring shear force is achieved, the tops of the channel steels are buried in the bridge deck through the top plate bolts, the web bolts are buried in the concrete bridge deck and transversely penetrate through the bridge deck, two ends of the web bolts are respectively fixed on opposite channel steels, the shearing connectors are used for transferring the born shear force to the steel box girders through the channel steels and the open pore plates, the shear connectors and the steel flange plates are used as concrete pouring templates to be installed in a factory, and the bridge deck is prefabricated integrally, the whole structure is installed on the steel box girders after reaching a construction site, and the traditional shear connectors can be assembled and disassembled easily, and maintained conveniently.
In order to achieve the above purpose, the invention provides a fully prefabricated detachable assembled steel-concrete composite beam structure, which comprises a bridge deck plate, a shear connector, a steel flange plate and a steel box girder, wherein the steel flange plate is fixed on the top of the steel box girder through bolts, the bridge deck plate comprises a bridge deck plate surface and a bridge deck plate bulge which are formed by casting, and the bridge deck plate bulge is arranged at the bottom of the bridge deck plate surface; the shear connector comprises a top plate bolt, channel steel, web bolts, bottom plate bolts and perforated plates, wherein the channel steel passes through the bottom plate bolts are arranged on two sides of the bridge deck plate in pairs, the channel steel is transversely arranged, the channel steel comprises vertical webs and top plates and bottom plates which are arranged in parallel, each pair of channel steel openings deviate from each other, the top plate bolts penetrate through the top plates and the bottom of the bridge deck plate surface are fixed, the bottom plates are provided with connecting holes and the steel flange plate bolts are fixed, the perforated plates are located between the opposite channel steel, the perforated plates are fixed on the steel flange plates, the web bolts transversely penetrate through the webs, the perforated plates and the bridge deck plates are protruded, and two ends of the web bolts are respectively fixed on the opposite channel steel webs, and the top plate bolts and the web bolts transmit the born shearing force to the steel box girders through the channel steel and the perforated plates.
Further, the roof bolt comprises a roof bolt pin and a roof bolt sleeve, the roof bolt sleeve is pre-buried to be arranged at the bottom of the bridge deck plate surface, and the roof bolt pin penetrates through the roof of the channel steel and is in threaded connection with the roof bolt sleeve.
Further, the web bolt comprises a web bolt stud and a web bolt sleeve, the web bolt stud and the web bolt sleeve respectively penetrate through the webs of the two opposite channel steels, the web bolt sleeve penetrates through the bridge deck to protrude, and the web bolt stud and the web bolt sleeve are in threaded connection.
Further, the optical fiber sensor is embedded in the web bolt stud, so that the bolt can be monitored in real time, the web bolt sleeve is sleeved outside the web bolt stud, and the web bolt sleeve protects the optical fiber sensor and the web bolt stud and prevents the web bolt stud from being bonded with concrete.
Further, the steel flange plate comprises a steel flange plate steel plate, the steel flange plate steel plate is of a pi-shaped structure, the steel flange plate steel plate comprises a horizontal plate and a vertical plate, the horizontal plate is in protruding contact with the bridge deck, the horizontal plate is fixedly connected with the bottom plate of the channel steel, and the vertical plate is fixedly connected with the steel box girder.
Further, the steel flange plate comprises steel flange plate bolts and steel flange plate bolt holes, a plurality of steel flange plate bolt holes are formed in the horizontal plate and the vertical plate, and the positions and the numbers of the steel flange plate bolt holes and the connecting holes on the horizontal plate are the same; and the flange plate bolts are in threaded connection and fix the steel box girder and the vertical plate.
Further, the steel flange plate bolt includes steel flange plate bolt head, first steel flange plate bolt cap and second steel flange plate bolt cap, the second steel flange plate bolt cap is welded in advance on the steel box girder steel flange plate bolt hole corresponds the department, the screw rod of steel flange plate bolt passes on the steel box girder second steel flange plate bolt cap with steel flange plate bolt hole, screw up the screw rod tip first steel flange plate bolt cap, through fixing steel flange plate bolt head, rotatory first steel flange plate bolt cap fastening steel flange plate bolt.
Further, including dehumidification module, dehumidification module is fixed on the channel-section steel, dehumidification module includes dehumidification sleeve and fan, the dehumidification sleeve is fixed indent one side of channel-section steel, the dehumidification sleeve will roof bolt web bolt the naked partial cage of bottom plate bolt, the fan is fixed to be set up on the steel case roof beam, the fan pass through the pipeline with dehumidification sleeve intercommunication and carry the dry air.
According to another aspect of the present invention, there is provided a construction method of a fully prefabricated detachable assembled steel reinforced concrete composite beam structure, comprising:
s100: prefabricating a steel box girder in a steel box girder prefabrication factory, and welding a second steel flange plate bolt cap on the corresponding position of the steel box girder and the steel flange plate bolt hole in advance;
s200: the method comprises the steps of prefabricating a concrete bridge deck, fixing shear connectors on steel flange plates through bolts, fixing a common pouring template on a web plate of channel steel, taking the steel flange plates as bottom templates, using the common pouring template and the channel steel as side templates, pouring the concrete bridge deck, and maintaining;
s300: installing a steel box girder in place, installing a prefabricated concrete bridge deck and a steel flange plate on the steel box girder, and fixing the steel box girder and the steel flange plate through steel flange plate bolts;
s400: the maintenance and replacement method comprises the steps that when the structure of the shearing-resistant connecting piece is damaged, if a bolt fastener is damaged, a corresponding bolt is screwed out, and a new bolt is replaced for installation; if the channel steel is damaged, after the top plate bolts, the web bolts and the bottom plate bolts of the channel steel section are unscrewed, the damaged channel steel is removed, and then a new channel steel is fixedly installed by reusing the bolts.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1. the invention provides a fully prefabricated detachable assembled steel-concrete composite beam structure and a construction method, wherein the composite beam structure comprises a bridge deck, a shearing-resistant connecting piece, a steel flange plate and a steel box girder, wherein the steel flange plate is fixed at the top of the steel box girder, the bridge deck is arranged on the steel flange plate through the shearing-resistant connecting piece, the shearing-resistant connecting piece comprises a top plate bolt, a channel steel, a web bolt, a bottom plate bolt and an open pore plate, the channel steel is fixed on the steel flange plate, the channel steel is used for replacing a traditional pouring template, the function of transmitting shearing force is achieved, the top of the channel steel is buried in the bridge deck through the top plate bolt, the web bolt is buried transversely through the bridge deck, two ends of the web bolt are respectively fixed on opposite channel steels, the function of the shearing-resistant connecting piece is achieved, the borne shearing force is transmitted to the steel box girder through the channel steel by the top plate bolt and the web bolt, the shearing-resistant connecting piece, the steel flange plate and the open pore plate are prefabricated and arranged on the steel box girder as a concrete pouring template in a factory, and the bridge deck is prefabricated integrally, and after the bridge deck is prefabricated and poured on a construction site, the whole structure is arranged on the steel box girder, and the problems that the traditional shearing-resistant connecting piece is easy to produce fatigue and the maintenance are solved.
2. The invention provides a fully prefabricated detachable assembled steel-concrete composite beam structure, wherein a bridge deck is installed on a steel box girder through a steel flange plate and a shearing-resistant connecting piece, the steel flange plate is fixedly connected with the shearing-resistant connecting piece through bolts, the meter is reasonable in arrangement and more convenient to install, a traditional steel-concrete composite beam bridge position interface is changed from a steel-concrete connecting structure into a steel structure connection, on-site wet connection operation is changed into bolting operation, construction efficiency is improved, and installation accuracy is higher.
3. The invention provides a fully prefabricated detachable assembled steel-concrete composite beam structure and a construction method.
4. The invention provides a fully prefabricated detachable assembled steel-concrete composite beam structure, which adopts web bolts to connect opposite channel steel, wherein the web bolts comprise web bolt nails, web bolt sleeves and optical fiber sensors, the web bolt nails and the web bolt sleeves respectively penetrate through two opposite channel steel webs and then penetrate through bridge panel bulges and perforated plates to complete the bolting, the optical fiber sensors are embedded in the web bolt nails, and the optical fiber sensors are armored through the web bolt sleeves, so that the effects of coupling and protecting the optical fiber sensors and the web bolt nails are achieved, the web bolt nails and concrete are prevented from being bonded, and the web bolt nails are convenient to replace in later periods.
Drawings
FIG. 1 is a schematic structural view of a fully prefabricated detachable assembled steel reinforced concrete composite beam structure according to an embodiment of the invention;
FIG. 2 is a schematic illustration of a deck slab structure of a fully prefabricated, demountable assembled steel-concrete composite beam structure according to an embodiment of the invention;
FIG. 3 is a schematic view of a shear connector of a fully prefabricated detachable assembled steel-concrete composite beam structure according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a top plate bolt structure of a fully prefabricated detachable assembled steel reinforced concrete composite beam structure according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a web bolt structure of a fully prefabricated detachable assembled steel-concrete composite beam structure according to an embodiment of the invention
FIG. 6 is a schematic view of a steel flange plate structure of a fully prefabricated and removable assembled steel-concrete composite beam structure according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a steel flange plate bolt structure of a fully prefabricated detachable assembled steel-concrete composite beam structure according to an embodiment of the invention;
FIG. 8 is a schematic view of a concrete precast structure of a fully precast detachable assembled steel reinforced concrete composite beam structure according to an embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view of a web bolt of a fully prefabricated, disassembled and assembled steel-concrete composite beam structure in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of a dehumidification module structure of a fully prefabricated and detachable assembled steel-concrete composite beam structure according to an embodiment of the present invention;
fig. 11 is a construction flow chart of a fully prefabricated detachable assembled steel reinforced concrete composite beam structure according to an embodiment of the invention.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-deck slab, 2-shear connectors, 3-steel flange plate, 4-steel box girder, 5-dehumidification module, 11-deck slab face, 12-deck slab protrusion, 21-roof bolt, 22-channel steel, 23-web bolt, 24-floor bolt, 25-perforated plate, 31-steel flange plate steel, 32-steel flange plate bolt, 33-steel flange plate bolt hole, 51-dehumidification sleeve, 52-blower, 211-roof bolt sleeve, 212-roof bolt stud, 231-web bolt stud, 232-web bolt sleeve, 233-fiber sensor, 321-steel flange plate bolt head, 322-first steel flange plate bolt cap, 323-second steel flange plate bolt cap.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The utility model provides a full prefabricated detachable assembled steel and concrete composite beam structure as shown in fig. 1-9, including decking 1, shear connector 2, steel flange 3 and steel box girder 4, wherein, steel flange 3 is fixed in the top of steel box girder 4, decking 1 installs on steel flange 3 through shear connector 2, shear connector 2 includes roof bolt 21, channel-section steel 22, web bolt 23, bottom plate bolt 24 and trompil board 25, channel-section steel 22 sets up in pairs, be fixed in steel flange 3 through bottom plate bolt 24, channel-section steel 22 is used for replacing traditional pouring template, simultaneously play the effect of transmitting shear force, the trompil board 25 is fixed on steel flange 3, be located between two channel-section steels 22, the top of channel-section steel 22 passes through roof bolt 21 to be fixed in bridge deck 1 bottom, web bolt 23 transversely passes bridge deck 1 and trompil board 25, both ends are fixed in on opposite channel-section steel 22 respectively, play the effect of shear connector, roof bolt 21 and web bolt 22 are passed through roof bolt 22 and trompil board 25 with the shear force that bears to be pour to steel box girder 4, T-section steel flange 2 is the effect of transmitting shear connector, the whole and the prefabricated concrete composite beam structure is formed at the same time, the prefabricated concrete bridge girder structure is not reached to the prefabricated concrete bridge girder 3, the whole is formed and the prefabricated concrete-cast structure is welded to the whole and the whole is not welded to be easy to be connected to the bridge girder 3.
Further, as shown in fig. 1 to 5, the bridge deck 1 includes a bridge deck plate 11 and a bridge deck plate protrusion 12, the bridge deck plate protrusion 12 is integrally formed at the bottom of the bridge deck plate 11, specifically, the bridge deck plate protrusion 12 is formed by casting between opposing channel steels 22, both the bridge deck plate 11 and the bridge deck plate protrusion 12 are prefabricated by casting in a factory, and after the perforated plate 25 is fixed on the steel flange plate 3, the perforated plate 25 is fixed in the bridge deck plate protrusion 12 by casting; further, the channel steel 22 is horizontally arranged and comprises a vertical web plate, a top plate and a bottom plate which are arranged in parallel, openings of the two channel steel 22 deviate from each other, a through hole is formed in the top plate of the channel steel 22, a top plate bolt 21 is fixed with the bottom surface of the bridge deck plate surface 11 through the through hole, the top plate bolt 21 comprises a top plate bolt nail 212 and a top plate bolt sleeve 211, the top plate bolt sleeve 211 is arranged at the bottom of the bridge deck plate surface 11 in a pre-buried mode, the top plate bolt nail 212 penetrates through the through hole in the top surface of the channel steel 22 to be in threaded connection with the top plate bolt sleeve 211, the function of a part of shearing-resistant connecting piece is achieved, the bottom plate is attached to the steel flange plate 3, a connecting hole is formed in the bottom plate, and the bottom plate is fixedly connected with the steel flange plate 3 through bolt connection; the roof bolt sleeve 212 is buried in concrete and is connected with the roof bolt studs 211 on the channel steel 22, when the shear connector 2 is replaced in the bridge operation period, the roof bolt studs 211 are screwed out, the shear connector 2 at the top is replaced, and the roof bolt sleeve 212 can prevent the action that water in the concrete permeates into the gap between the roof bolt 21 and the channel steel 22 when concrete is poured.
Further, as shown in fig. 1-5, the web bolt 23 comprises a web bolt pin 231, a web bolt sleeve 232 and an optical fiber sensor 233, the web bolt pin 231 and the web bolt sleeve 232 respectively penetrate through two opposite channel steel 22 webs and then penetrate through the bridge deck plate boss 12 and the perforated plate 25 to complete bolting, preferably, after the bridge deck plate 1 is poured by arranging a plurality of groups of web bolts 23 in parallel on each group of opposite channel steel 22, the web bolt 23 is poured and fixed in the bridge deck plate boss 12, the web bolt sleeve 232 is in direct contact with concrete, when the bridge deck plate 1 is subjected to shearing force, the web bolt 23 plays a role in enhancing the shearing resistance, the optical fiber sensor 233 is embedded in the web bolt pin 231, the bolts can be monitored in real time, and the web bolt sleeve 232 is sheathed outside the web bolt pin 231 to play a role in coupling and protecting the optical fiber sensor 233 and the web bolt pin 231, the web bolt pin 231 can be prevented from being bonded with the concrete, and the web bolt pin 231 can be replaced conveniently at a later stage.
Further, as shown in fig. 1 to 7, the steel flange plate 3 comprises a steel flange plate 31, steel flange plate bolts 32 and steel flange plate bolt holes 33, wherein the steel flange plate 31 is of a pi-shaped structure and comprises a horizontal plate and a vertical plate, a plurality of steel flange plate bolt holes 33 are formed in the horizontal plate and the vertical plate, the positions of the steel flange plate bolt holes 33 in the horizontal plate are identical to the positions and the numbers of connecting holes in the bottom plate of the channel steel 22, and the bottom plate is fixedly connected with the horizontal plate through bolts; further, the steel flange plate bolts 32 are arranged on the vertical plates and used for fixedly connecting the steel flange plate 3 with the steel box girder 4, the steel flange plate bolts 32 comprise steel flange plate bolt heads 321, first steel flange plate bolt caps 322 and second steel flange plate bolt caps 323, the vertical plates comprise two parallel vertical steel plates, the steel box girder 4 is inserted between the two vertical steel plates, the two steel flange plate bolts 32 are fixed, the second steel flange plate bolt caps 323 are welded on the corresponding positions of the steel box girder 4 and the steel flange plate bolt holes 33 in advance, a screw rod of the steel flange plate bolt 32 penetrates through the second steel flange plate bolt caps 323 on the steel box girder 4 and the steel flange plate bolt holes 33 on the two vertical steel plates, then the first steel flange plate bolt caps 322 at the end parts of the screw rod are screwed, and the first steel flange plate bolt caps 322 are rotated through the fixed steel flange plate bolt heads 321, so that the steel flange plate bolts 32 are installed in place, and the fixation is completed; the steel-concrete composite beam structure is convenient to install, the bridge position interface of the traditional steel-concrete composite beam is converted into a steel connecting structure by the steel-concrete structure, the on-site wet connection operation is converted into the bolting operation, the on-site construction time is shortened, the construction efficiency is improved, the installation accuracy is higher, and after the steel structure is damaged, the bolting structure is adopted for maintenance and construction more conveniently.
As shown in fig. 1-10, the dehumidifying module 5 comprises a dehumidifying sleeve 51 and a fan 52, the dehumidifying sleeve 51 is fixed on the concave side of the channel steel 22, the exposed parts of the top plate bolt 21, the web bolt 23 and the bottom plate bolt 24 are covered and wrapped, the functions of preventing dust, sundries and rainwater from entering are achieved, the rust resistance of the steel structure connection part is improved, a cavity is arranged in the dehumidifying sleeve 51, the fan 52 is fixedly arranged on the steel box girder 4, the fan 52 is communicated with the dehumidifying sleeve 51 through a pipeline, in particular, the pipeline is communicated with the cavity, dry air is conveyed into the cavity through periodically running the fan 52, and the humidity in the dehumidifying sleeve 51 is reduced, so that the rust resistance of the top plate bolt 21, the web bolt 23 and the bottom plate bolt 24 is delayed.
Further, as shown in fig. 1 to 11, the construction method of the fully prefabricated detachable assembled steel reinforced concrete composite beam structure comprises the following steps:
s100: prefabricating a steel box girder 4 in a steel box girder prefabrication factory, and welding a second steel flange plate bolt cap 323 on the corresponding position of the steel box girder 4 and the steel flange plate bolt hole 33 in advance;
s200: prefabricating a concrete bridge deck, fixing shear connectors 2 on steel flange plates 3 at intervals of a certain distance by bolts, fixedly mounting common pouring templates on webs of channel steel 22, using the steel flange plates 3 as bottom templates and using the common pouring templates and the channel steel 22 as side templates, pouring the concrete bridge deck 1, and curing;
s300: installing the steel box girder 4 in place, installing the prefabricated concrete bridge deck 1 and the steel flange plates 3 on the steel box girder 4, inserting the steel box girder 4 between two vertical plates of the steel flange plates 3, installing the steel flange plate bolts 32 after aligning the installation holes, and installing the steel flange plate bolts 32 in place by fixing the steel flange plate bolt heads 321 and rotating the first steel flange plate bolt caps 322 to finish the fixing;
s400: the maintenance and replacement method comprises the steps that when the structure of the shear connector 2 is damaged, if a bolt fastener is damaged, a corresponding bolt is screwed out, and a new bolt is replaced; if the channel 22 is damaged, the top plate bolts 21, the web bolts 23 and the bottom plate bolts 24 of the channel 22 segment are screwed out, the damaged channel 22 is removed, and then a new channel 22 is fixedly installed by using bolts again.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The fully prefabricated detachable assembled steel-concrete composite beam structure is characterized by comprising a bridge deck (1), a shear connector (2), a steel flange plate (3) and a steel box beam (4), wherein the steel flange plate (3) is fixed on the top of the steel box beam (4) through bolts, the bridge deck (1) comprises a bridge deck plate surface (11) and a bridge deck plate bulge (12) which are formed by casting, and the bridge deck plate bulge (12) is arranged at the bottom of the bridge deck plate surface (11); the shear connector (2) comprises a top plate bolt (21), channel steel (22), web bolts (23), bottom plate bolts (24) and perforated plates (25), wherein the channel steel (22) is arranged on two sides of a bridge deck bulge (12) in pairs through the bottom plate bolts (24), the channel steel (22) is horizontally arranged, the channel steel (22) comprises vertical webs and top plates and bottom plates which are arranged in parallel, each pair of channel steel (22) is opened and away from each other, the top plate bolts (21) penetrate through the top plates and are fixed on the bottoms of bridge deck plates (11), the bottom plates are provided with connecting holes and are fixed by the steel flange plates (3) through bolts, the perforated plates (25) are located between the opposite channel steel (22), the web bolts (23) transversely penetrate through the webs, the perforated plates (25) and the panel bulge (12), the web bolts (23) are respectively fixed on the opposite webs (22) at two ends of the web bolts (23), and the perforated plates (22) are connected with the shear connector (4) through the steel flange plates (25).
2. The fully prefabricated detachable assembled steel-concrete composite girder structure according to claim 1, wherein the roof bolt (21) comprises a roof bolt stud (211) and a roof bolt sleeve (212), the roof bolt sleeve (212) is pre-buried to be arranged at the bottom of the bridge deck plate surface (11), and the roof bolt stud (211) penetrates through the roof of the channel steel (22) to be in threaded connection with the roof bolt sleeve (212).
3. A fully prefabricated removable assembled steel concrete girder structure according to claim 1, characterized in that the web bolt (23) comprises a web bolt stud (231) and a web bolt sleeve (232), the web bolt stud (231) and the web bolt sleeve (232) respectively pass through the webs of two opposing channel steels (22), the web bolt sleeve (232) passes through the bridge deck protrusions (12), the web bolt stud (231) and the web bolt sleeve (232) are bolted.
4. A fully prefabricated detachable assembled steel-concrete composite girder structure according to claim 3, characterized in that the steel flange plate (3) comprises a steel flange plate (31), the steel flange plate (31) is of a pi-shaped structure, the steel flange plate (31) comprises a horizontal plate and a vertical plate, the horizontal plate is in contact with the bridge deck protrusions (12), the horizontal plate is fixedly connected with the bottom plate of the channel steel (22), and the vertical plate is fixedly connected with the steel box girder (4).
5. A fully prefabricated detachable assembled steel reinforced concrete composite girder structure according to claim 3, characterized in that an optical fiber sensor (233) is embedded in the web bolt stud (231), the web bolt sleeve (232) is sleeved outside the web bolt stud (231), and the web bolt sleeve (232) protects the optical fiber sensor (233) and the web bolt stud (231) and prevents the web bolt stud (231) from being bonded with concrete.
6. The fully prefabricated detachable assembled steel-concrete composite girder structure according to claim 4, wherein the steel flange plate (3) comprises steel flange plate bolts (32) and steel flange plate bolt holes (33), a plurality of the steel flange plate bolt holes (33) are formed in the horizontal plate and the vertical plate, and the positions and the numbers of the steel flange plate bolt holes (33) and the connecting holes in the horizontal plate are the same; and the flange plate bolts (32) are in threaded connection with and fix the steel box girder (4) and the vertical plate.
7. The fully prefabricated detachable assembled steel and concrete composite girder structure according to claim 4, wherein the steel flange plate bolts (32) comprise steel flange plate bolt heads (321), first steel flange plate bolt caps (322) and second steel flange plate bolt caps (323), the second steel flange plate bolt caps (323) are welded to the positions corresponding to the steel flange plate bolt holes (33) on the steel box girder (4) in advance, screw rods of the steel flange plate bolts (32) penetrate through the second steel flange plate bolt caps (323) and the steel flange plate bolt holes (33) on the steel box girder (4), the first steel flange plate bolt caps (322) at the screw rod ends are screwed down, and the steel flange plate bolts (32) are fastened by fixing the steel flange plate bolt heads (321) and rotating the first steel flange plate bolt caps (322).
8. A fully prefabricated detachable assembled steel and concrete composite girder structure according to any one of claims 1-7, comprising a dehumidifying module (5), wherein the dehumidifying module (5) is fixed on a channel steel (22), the dehumidifying module (5) comprises a dehumidifying sleeve (51) and a fan (52), the dehumidifying sleeve (51) is fixed on one concave side of the channel steel (22), the dehumidifying sleeve (51) covers the exposed part of the top plate bolt (21), the web bolt (23) and the bottom plate bolt (24), the fan (52) is fixedly arranged on the steel box girder (4), and the fan (52) is communicated with the dehumidifying sleeve (51) through a pipeline and conveys dry air.
9. A construction method of a fully prefabricated detachable assembled steel-concrete composite beam, which is characterized by being implemented by applying the fully prefabricated detachable assembled steel-concrete composite beam structure and the construction method thereof according to any one of claims 1-8, comprising the following steps:
s100: prefabricating a steel box girder (4) in a steel box girder prefabrication factory, and welding a second steel flange plate bolt cap (323) on the corresponding position of the steel box girder (4) and the steel flange plate bolt hole (33) in advance;
s200: prefabricating a concrete bridge deck, fixing a shear connector (2) on a steel flange plate (3) through bolts and glue joint, fixedly installing a common pouring template on a web plate and a top plate of a channel steel (22), using the steel flange plate (3) as a bottom template, using the common pouring template and the channel steel (22) as side templates, pouring the concrete bridge deck (1), and maintaining;
s300: installing a steel box girder (4) in place, installing a prefabricated concrete bridge deck (1) and a steel flange plate (3) on the steel box girder (4), and fixing the steel box girder (4) and the steel flange plate (3) through steel flange plate bolts (32);
s400: the maintenance and replacement method comprises the steps that when the structure of the shear connector (2) is damaged, if a bolt fastener is damaged, a corresponding bolt is screwed out, and a new bolt is replaced for installation; if the channel steel (22) is damaged, after the top plate bolts (21), the web bolts (23) and the bottom plate bolts (24) of the channel steel (22) section are screwed out, the damaged channel steel (22) is removed, and then a new channel steel (22) is fixedly installed by using bolts again.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118241546A (en) * | 2024-05-28 | 2024-06-25 | 福建省高速公路科技创新研究院有限公司 | Structure for connecting steel corbel and concrete tower wall in cable tower anchoring area |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354856A (en) * | 2017-07-27 | 2017-11-17 | 长安大学 | A kind of steel-concrete combination beam of groove profile top flange plate |
| CN108035241A (en) * | 2017-12-22 | 2018-05-15 | 苏交科集团股份有限公司 | Assembled steel-concrete composite bridge and construction process thereof |
| CN207686136U (en) * | 2017-12-20 | 2018-08-03 | 山东交通学院 | A kind of steel-concrete composite beam for arranging multidirectional reinforcing bar |
| CN108643449A (en) * | 2018-04-18 | 2018-10-12 | 浙江交通职业技术学院 | A kind of detachably prefabricated assembled Steel-concrete Combined Beam Structures and manufacture craft |
| CN110792025A (en) * | 2019-12-03 | 2020-02-14 | 张延年 | Connection structure of assembled precast concrete decking and girder steel |
| CN212223608U (en) * | 2020-03-05 | 2020-12-25 | 苏交科集团股份有限公司 | Corrugated channel steel-concrete combined bridge deck |
| CN112695617A (en) * | 2021-02-04 | 2021-04-23 | 重庆交通大学 | Shear force connecting structure for assembled steel-concrete composite beam |
| CN214328487U (en) * | 2020-12-18 | 2021-10-01 | 安徽建筑大学 | Steel-ultra-high performance concrete composite structure based on H-shaped steel connecting piece |
| CN114411975A (en) * | 2022-02-13 | 2022-04-29 | 重庆交通大学 | Composite bolt shear key structure |
| CN115233536A (en) * | 2022-06-27 | 2022-10-25 | 湖南大学 | Light-weight assembled steel-UHPC (ultra high performance polycarbonate) composite beam and loading and unloading method thereof |
-
2023
- 2023-09-20 CN CN202311214789.6A patent/CN117230694A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354856A (en) * | 2017-07-27 | 2017-11-17 | 长安大学 | A kind of steel-concrete combination beam of groove profile top flange plate |
| CN207686136U (en) * | 2017-12-20 | 2018-08-03 | 山东交通学院 | A kind of steel-concrete composite beam for arranging multidirectional reinforcing bar |
| CN108035241A (en) * | 2017-12-22 | 2018-05-15 | 苏交科集团股份有限公司 | Assembled steel-concrete composite bridge and construction process thereof |
| CN108643449A (en) * | 2018-04-18 | 2018-10-12 | 浙江交通职业技术学院 | A kind of detachably prefabricated assembled Steel-concrete Combined Beam Structures and manufacture craft |
| CN110792025A (en) * | 2019-12-03 | 2020-02-14 | 张延年 | Connection structure of assembled precast concrete decking and girder steel |
| CN212223608U (en) * | 2020-03-05 | 2020-12-25 | 苏交科集团股份有限公司 | Corrugated channel steel-concrete combined bridge deck |
| CN214328487U (en) * | 2020-12-18 | 2021-10-01 | 安徽建筑大学 | Steel-ultra-high performance concrete composite structure based on H-shaped steel connecting piece |
| CN112695617A (en) * | 2021-02-04 | 2021-04-23 | 重庆交通大学 | Shear force connecting structure for assembled steel-concrete composite beam |
| CN114411975A (en) * | 2022-02-13 | 2022-04-29 | 重庆交通大学 | Composite bolt shear key structure |
| CN115233536A (en) * | 2022-06-27 | 2022-10-25 | 湖南大学 | Light-weight assembled steel-UHPC (ultra high performance polycarbonate) composite beam and loading and unloading method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118241546A (en) * | 2024-05-28 | 2024-06-25 | 福建省高速公路科技创新研究院有限公司 | Structure for connecting steel corbel and concrete tower wall in cable tower anchoring area |
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