CN115125835A - Prefabricated bridge deck structure of steel plate combination beam - Google Patents
Prefabricated bridge deck structure of steel plate combination beam Download PDFInfo
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- CN115125835A CN115125835A CN202210715846.8A CN202210715846A CN115125835A CN 115125835 A CN115125835 A CN 115125835A CN 202210715846 A CN202210715846 A CN 202210715846A CN 115125835 A CN115125835 A CN 115125835A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 262
- 239000010959 steel Substances 0.000 title claims abstract description 262
- 239000000758 substrate Substances 0.000 claims abstract description 65
- 239000002131 composite material Substances 0.000 claims abstract description 36
- 230000003014 reinforcing effect Effects 0.000 claims description 36
- 230000002787 reinforcement Effects 0.000 claims description 22
- 238000010008 shearing Methods 0.000 claims description 14
- 210000002435 tendon Anatomy 0.000 claims 2
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 15
- 238000010276 construction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000003313 weakening 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
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a prefabricated bridge deck structure of a steel plate composite beam, which comprises a bridge deck body, a substrate flat steel plate and a plurality of shear parts, wherein the substrate flat steel plate is tightly attached to the bottom wall of the bridge deck body, the substrate flat steel plate and the shear parts are integrally welded and connected through the shear steel plate, the shear parts and the shear steel plate are pre-embedded and arranged in the bridge deck body, the cross section of the shear steel plate is in a ladder shape with a lower opening, a plurality of pouring holes are formed in the top plate surface of the shear steel plate, the shear parts are bound and arranged on a steel bar jig frame in the bridge deck body, a plurality of steel frame beams are welded below the substrate flat steel plate, the steel plate composite beam is prefabricated through the bridge deck body, the substrate flat steel plate and the steel frame beams, so that the position of a compression area of the steel plate composite beam is moved upwards, the shear steel plate can share the passing pressure of the bridge deck body, and the bearing capacity of the steel plate composite beam is improved, and the stable connection quality between the bridge deck body and the substrate flat steel plate is ensured.
Description
Technical Field
The invention relates to the technical field of prefabricated bridge deck engineering, in particular to a prefabricated bridge deck structure of a steel plate composite beam.
Background
The steel plate composite beam is formed by integrally pouring and hardening the steel frame beam and the prefabricated bridge deck through the shear resistant parts, the poured and hardened whole is taken as a common stressed transverse bearing member, the advantages of tensile strength and good concrete compression resistance of steel can be fully exerted, and the steel plate composite beam has the advantages of high bearing capacity, high rigidity, good earthquake resistance and dynamic performance, small member section size, convenience in construction and the like.
In the prior art, as shown in fig. 10, the bridge deck body 100 and the substrate flat steel plate 200 whose bottom wall is closely attached to each other are integrally connected in a tensile manner through a shear member 500, and the bottom end of the shear member 500 is vertically welded to the substrate flat steel plate 200, but in the process of hardening and forming the prefabricated cast bridge deck body 100, the concrete material poured by vibration impacts the shear member 500, so that the shear member 500 is easily deformed or the bottom end is loosened and deviated, and the connection quality between the bridge deck body 100 and the substrate flat steel plate 200 is unreliable, thereby weakening the tensile and compressive properties of the steel plate composite beam.
Disclosure of Invention
The invention aims to provide a prefabricated bridge deck structure of a steel plate composite beam, which is used for solving the problem of unreliable connection quality between a bridge deck body and a substrate flat steel plate.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a prefabricated decking structure of steel sheet composite beam, includes decking body, the flat steel sheet of substrate and a plurality of shear force spare, hug closely on the diapire of decking body and be provided with the flat steel sheet of substrate, the flat steel sheet of substrate with through the integrative welded connection of shear force steel sheet between a plurality of shear force spares, a plurality of shear force spares with the shear force steel sheet is pre-buried to be set up in the deck slab body, the cross-section of shear force steel sheet is under shed's trapezoidal form, just a plurality of holes of pouring have been seted up on the roof face of shear force steel sheet, a plurality of shear force spare ligatures set up on this internal reinforcing bar bed-jig of deck slab, the welding of the flat steel sheet below of substrate has a plurality of steel frame roof beams.
As a further scheme of the invention: the reinforcing bar bed-jig includes a plurality of staple bolt steel reinforcement circles and a plurality of rectangular reinforcing bar, a plurality of rectangular reinforcing bar are respectively through the upper and lower muscle strip of the horizontal ligature connection of steel wire a plurality of staple bolt steel reinforcement circles, just the both sides closed end of a plurality of staple bolt steel reinforcement circles all outwards stretches out the decking body.
As a further scheme of the invention: the shearing pieces are respectively connected with the upper and lower ribs of the hoop reinforcing rings through vertical binding of steel wires.
The plurality of shear members are respectively shear steel bars, and the bottom ends of the shear steel bars are welded and connected with the top plate surface of the shear steel plate.
As a further scheme of the invention: and a plurality of support plates are welded and fixed on the two ear arms of the lower opening of the shear steel plate.
The utility model provides a prefabricated decking structure of steel sheet composite beam, includes decking body, the flat steel sheet of substrate and a plurality of shear force spare, hug closely on the diapire of decking body and be provided with the flat steel sheet of substrate, the flat steel sheet of substrate with be provided with the shear force steel sheet between a plurality of shear force spares, and the shear force steel sheet can dismantle between with the flat steel sheet of substrate, a plurality of shear force spares respectively and be connected, a plurality of shear force spares with the shear force steel sheet is pre-buried to be set up in the deck slab body, the cross-section of shear force steel sheet is under shed's trapezoidal form, just a plurality of holes of pouring have been seted up on the roof face of shear force steel sheet, a plurality of shear force spare ligatures set up on this internal steel reinforcement bed-jig of deck slab, the welding of the flat steel sheet below of substrate has a plurality of steel frame girders.
As a further scheme of the invention: the reinforcing bar bed-jig includes a plurality of staple bolt steel reinforcement circles and a plurality of rectangular reinforcing bar, a plurality of rectangular reinforcing bar are respectively through the upper and lower muscle strip of the horizontal ligature connection of steel wire a plurality of staple bolt steel reinforcement circles, just the both sides closed end of a plurality of staple bolt steel reinforcement circles all outwards stretches out the decking body.
As a further scheme of the invention: the shearing pieces are respectively connected with the upper and lower ribs of the hoop reinforcing rings through vertical binding of steel wires.
As a further scheme of the invention: the plurality of shear pieces are respectively shear nails which penetrate through the shear steel plate and extend downwards, and the downwards extending bottom ends of the shear nails are connected with the shear steel plate in an integrated locking mode through screw thread blocks in threaded connection.
As a further scheme of the invention: a plurality of support plates are arranged on the two ear arms of the lower opening of the shear steel plate in a carrying mode, the shear steel plate, the support plates and the substrate flat steel plate are integrally assembled and connected through shear bolts, and the tail ends of the shear bolts are provided with locknuts in a locking mode.
The invention has the beneficial effects that:
(1) the bridge deck body, the substrate flat steel plate and the steel frame beams are prefabricated to form the steel plate combination beam, the steel plate combination beam is embedded and installed through the shear steel plate, so that the position of a compression area of the steel plate combination beam moves upwards, the shear steel plate can share the passing pressure of the bridge deck body, and the bearing capacity of the steel plate combination beam is improved;
(2) when the substrate flat steel plate and the plurality of shearing force pieces are integrally welded and connected through the shearing force steel plate, the use of the shearing force steel plate shortens the embedding length of the plurality of shearing force pieces, and the welding area between the shearing force steel plate and the substrate flat steel plate is increased, so that the tensile shear strength of the steel plate combination beam is improved, and the stable connection quality between the bridge deck slab body and the substrate flat steel plate is ensured;
(3) the shear steel plates are arranged between the substrate flat steel plate and the plurality of shear parts, and when the shear steel plates are detachably connected with the substrate flat steel plate and the plurality of shear parts respectively, the assembly and the installation are convenient and efficient, the construction period is shortened, electric welding equipment is not needed in the connection process, the power utilization risk is reduced, and the influence of infirm welding caused by insufficient welding is reduced;
(4) in addition, a plurality of support plates are arranged on the lower opening ear arms of the shear steel plates in a carrying mode, the support plates are used for strengthening the lower opening two ear arms connected with the shear steel plates, meanwhile, the support plates are filled between the shear steel plates and the substrate flat steel plates, and the pouring concrete strength between the shear steel plates and the substrate flat steel plates is improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a prefabricated deck structure of a steel plate composite beam according to the present invention;
FIG. 2 is a side view of a prefabricated deck structure of a steel plate composite beam of the present invention;
FIG. 3 is a top view of a shear member tied to a reinforcing steel jig of a prefabricated deck structure of a steel plate composite beam according to the present invention;
FIG. 4 is a schematic cross-sectional view of a prefabricated deck structure of a steel plate composite girder according to example 1;
FIG. 5 is a schematic cross-sectional view of a prefabricated deck structure of a steel plate composite girder according to example 2;
FIG. 6 is a bottom view of the shear steel plate and the support plate in example 2;
FIG. 7 is a schematic cross-sectional view of a prefabricated deck structure of a steel plate composite girder according to example 3;
FIG. 8 is a schematic cross-sectional view of a prefabricated deck structure of a steel plate composite girder according to example 4;
FIG. 9 is a bottom view of the shear steel plate and the plate bolt attachment of example 4;
fig. 10 is a cross-sectional view illustrating a structure of a prefabricated decking of a steel plate composite girder in the prior art.
In the figure: 100. a bridge deck body; 200. a substrate flat steel plate; 300. hooping reinforcing steel rings; 400. a long steel bar; 500. a shear member; 510. a screw block; 600. a shear steel plate; 610. pouring holes; 700. a support plate; 800. a shear bolt; 900. and (4) steel frame beams.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, the invention relates to a prefabricated bridge deck structure of a steel plate composite beam, which comprises a bridge deck body 100, a substrate flat steel plate 200 and a plurality of shear members 500, wherein the substrate flat steel plate 200 is closely attached to the bottom wall of the bridge deck body 100, the substrate flat steel plate 200 and the plurality of shear members 500 are integrally welded and connected through the shear steel plate 600, the plurality of shear members 500 and the shear steel plate 600 are pre-embedded in the bridge deck body 100, a plurality of steel frame girders 900 are welded below the substrate flat steel plate 200, the bridge deck body 100, the substrate flat steel plate 200 and the plurality of steel frame girders 900 are prefabricated to form the steel plate composite beam, and the steel plate composite beam is embedded and installed through the shear steel plate 600, so that the steel plate composite beam moves upwards in the compression area, the shear steel plate 600 can share the passing pressure of the bridge deck body 100, and the bearing capacity of the steel plate composite beam is improved; in addition, the use of the shear steel plate 600 shortens the embedding length of the plurality of shear pieces 500, and the welding area between the shear steel plate 600 and the substrate flat steel plate 200 is increased, so that the tensile shear strength of the steel plate combination beam is improved, and the stable connection quality between the bridge deck body 100 and the substrate flat steel plate 200 is ensured.
The section of the shear steel plate 600 is in a trapezoid shape with a lower opening, a plurality of pouring holes 610 are formed in the top plate surface of the shear steel plate 600, concrete can be conveniently and rapidly vibrated to enter the inner cavity of the shear steel plate 600 through the plurality of pouring holes 610, the hardened pouring concrete tightly presses the lower opening ear arm of the shear steel plate 600 to be attached to the bottom flat steel plate 200, the shear tensile strength of the steel plate composite beam is enhanced, and welding looseness of the shear steel plate 600 and the bottom flat steel plate 200 is avoided.
The plurality of shearing members 500 are bound and arranged on a reinforcement jig frame in the bridge deck body 100, the reinforcement jig frame comprises a plurality of hoop reinforcement rings 300 and a plurality of long-strip reinforcements 400, the plurality of long-strip reinforcements 400 are respectively connected with the upper and lower ribs of the plurality of hoop reinforcement rings 300 through horizontal binding of steel wires, so that the reinforcement jig frame is stably and firmly bound through the plurality of hoop reinforcement rings 300 and the plurality of long-strip reinforcements 400, the reinforcement jig frame is filled in the bridge deck body 100 to improve the pouring strength of a steel plate combination beam, the closed ends at the two sides of the plurality of hoop reinforcement rings 300 extend outwards from the bridge deck body 100, after the prefabricated bridge deck body 100 is constructed, the plurality of hoop reinforcement rings 300 extending outwards are used for a cast-in-situ protective fence, so that the connection strength between the protective fence and the prefabricated bridge deck body 100 is improved, the plurality of shearing members 500 are respectively connected with the upper and lower ribs of the plurality of hoop reinforcement rings 300 through vertical binding of steel wires, the binding and positioning of the plurality of shear pieces 500 are stable and firm, when the vibrated and poured concrete impacts the shear pieces 500, the phenomenon that the shear pieces 500 are loosened and deviated is avoided, the plurality of shear pieces 500 are respectively shear steel bars, the bottom ends of the shear steel bars are welded to the top plate surface of the shear steel plate 600, welding between the plurality of shear pieces 500 and the shear steel plate 600 and welding construction between the shear steel plate 600 and the substrate flat steel plate 200 can be continuously carried out, and inconvenience caused by cross construction is avoided.
Example 2
Referring to fig. 5 and 6, the difference from embodiment 1 is that a plurality of support plates 700 are welded and fixed to the lower open two-ear arms of the shear steel plate 600, the plurality of support plates 700 are used for reinforcing and connecting the lower open two-ear arms of the shear steel plate 600, and the plurality of support plates 700 are filled between the shear steel plate 600 and the substrate flat steel plate 200, so as to improve the strength of the cast concrete between the shear steel plate 600 and the substrate flat steel plate 200.
Example 3
Referring to fig. 1-3 and 7, a prefabricated bridge deck structure of a steel plate composite beam includes a bridge deck body 100, a substrate flat steel plate 200 and a plurality of shear members 500, the substrate flat steel plate 200 is closely attached to the bottom wall of the bridge deck body 100, a shear steel plate 600 is disposed between the substrate flat steel plate 200 and the plurality of shear members 500, the shear steel plate 600 is detachably connected with the substrate flat steel plate 200 and the plurality of shear members 500, the plurality of shear members 500 and the shear steel plate 600 are embedded in the bridge deck body 100, a lower opening ear of the shear steel plate 600 is connected with the substrate flat steel plate 200 through bolts 800, the plurality of shear members 500 are shear nails penetrating through the shear steel plate 600 and extending downwards, the lower end of each shear nail is integrally locked and connected with the shear steel plate 600 through a threaded block 510, and the shear steel plate 600 is connected with the substrate flat steel plate 200, the shear steel plate 600 is connected with the substrate flat steel plate 200, The detachable connection mode among the plurality of shear pieces 500 replaces welding connection, the assembly and installation are convenient, the efficiency is high, the construction period is shortened, electric welding equipment is not needed in the connection process, the power utilization risk is reduced, and the infirm welding influence caused by insufficient welding is reduced.
In the technical scheme, the steel plate combination beam is prefabricated by the bridge deck body 100, the substrate flat steel plate 200 and the plurality of steel frame beams 900, and the steel plate combination beam is embedded and installed by the shear steel plate 600, so that the position of a compression area of the steel plate combination beam moves upwards, the shear steel plate 600 can share the passing pressure of the bridge deck body 100, and the bearing capacity of the steel plate combination beam is improved; in addition, the use of the shear steel plate 600 shortens the embedding length of the plurality of shear pieces 500, the shear steel plate 600 is connected with the substrate flat steel plate 200 through the shear bolts 800, and the slippage between the shear steel plate 600 and the substrate flat steel plate 200 is reduced, so that the tensile and shear strength of the steel plate combination beam is improved, and the stable connection quality between the bridge deck body 100 and the substrate flat steel plate 200 is ensured.
In the technical scheme, the plurality of shear members 500 are respectively shear nails which penetrate through the shear steel plate 600 and extend downwards, and the bottom ends of the shear nails extending downwards are used as reinforcing ribs between the shear steel plate 600 and the substrate flat steel plate 200, so that the connection strength at the shear position is enhanced, and the shear-resistant bearing capacity of the steel plate composite beam is greatly improved.
The cross-section of shear steel plate 600 is under shed's trapezoidal form, and has seted up a plurality of holes of pouring 610 on the roof face of shear steel plate 600, the ligature setting of a plurality of shear force pieces 500 is on the reinforcing bar bed-jig in decking body 100, the welding of the flat steel sheet 200 below of substrate has a plurality of steel frame roof beams 900, make the concrete material be convenient for vibrate fast through a plurality of holes of pouring 610 of seting up and get into the inner chamber of shear steel plate 600, and the lower open ear of the flat steel sheet 200 of laminating of lower aperture ear to shear steel plate 600 is sticis to the concreting of sclerosis, the tensile strength that shears of reinforcing steel plate combination beam.
The steel bar jig frame comprises a plurality of anchor ear reinforcing rings 300 and a plurality of long reinforcing bars 400, the long reinforcing bars 400 are respectively connected with the upper reinforcing bars and the lower reinforcing bars of the anchor ear reinforcing rings 300 through horizontal binding of steel wires, the closed ends at the two sides of the anchor ear reinforcing rings 300 extend outwards from the bridge deck body 100, the shearing pieces 500 are respectively connected with the upper reinforcing bars and the lower reinforcing bars of the anchor ear reinforcing rings 300 through vertical binding of steel wires, so that the steel bar jig frame is stably and firmly bound through the anchor ear reinforcing rings 300 and the long reinforcing bars 400, the steel bar combination beam is filled into the bridge deck body 100 to improve the pouring strength of the steel plate combination beam, the closed ends at the two sides of the anchor ear reinforcing rings 300 extend outwards from the bridge deck body 100, after the prefabricated bridge deck body 100 is constructed, the outwardly extending anchor ear reinforcing rings 300 are used for the cast-in-place protective fence, and the connecting strength between the protective fence and the prefabricated bridge deck body 100 is improved, the plurality of shear members 500 are vertically bound and connected with the upper and lower ribs of the plurality of anchor ear reinforcing rings 300 through steel wires respectively, the plurality of shear members 500 are stably and firmly bound and positioned, and when the concrete material poured by vibration impacts the shear members 500, the occurrence of loosening and deviation of the shear members 500 is avoided.
Example 4
Referring to fig. 8 and 9, what is different from embodiment 4 is that a plurality of support plates 700 are mounted on two lower-opening ear arms of a shear steel plate 600, the support plates 700 and a substrate flat steel plate 200 are integrally assembled and connected through a shear bolt 800, a locknut is installed at the tail end of the shear bolt 800 in a locking manner, the support plates 700 are used for reinforcing and connecting the two lower-opening ear arms of the shear steel plate 600, and meanwhile, the support plates 700 are filled between the shear steel plate 600 and the substrate flat steel plate 200, so that the strength of cast concrete between the shear steel plate 600 and the substrate flat steel plate 200 is improved; during the prefabrication construction process of the bridge deck body 100, waterproof sealant is sprayed in the connecting holes of the shear bolts 800, so that the leakage of the poured concrete material from the positions of the shear bolts 800 is avoided.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. A prefabricated bridge deck structure of a steel plate combination beam comprises a bridge deck body (100), a substrate flat steel plate (200) and a plurality of shearing pieces (500), it is characterized in that a substrate flat steel plate (200) is closely arranged on the bottom wall of the bridge deck body (100), the substrate flat steel plate (200) and the plurality of shearing pieces (500) are integrally welded and connected through the shearing steel plate (600), the plurality of shear pieces (500) and the shear steel plates (600) are pre-buried in the bridge deck body (100), the cross sections of the shear steel plates (600) are in a trapezoidal shape with a lower opening, a plurality of pouring holes (610) are arranged on the top plate surface of the shear steel plate (600), the plurality of shearing pieces (500) are bound and arranged on a steel bar jig frame in the bridge deck body (100), a plurality of steel frame beams (900) are welded below the substrate flat steel plate (200).
2. The precast bridge deck structure of steel plate composite beam of claim 1, wherein the steel reinforcement jig comprises a plurality of hoop reinforcing rings (300) and a plurality of long steel bars (400), the long steel bars (400) are respectively connected with the upper and lower bars of the hoop reinforcing rings (300) through horizontal binding of steel wires, and both closed ends of the hoop reinforcing rings (300) extend outwards from the bridge deck body (100).
3. The precast bridge deck structure of a steel plate composite girder according to claim 2, wherein the plurality of shear members (500) are connected to the upper and lower tendons of the plurality of hoop reinforcing coils (300) by vertical binding of steel wires, respectively.
4. The precast bridge deck structure of steel plate composite beam according to claim 3, wherein said plurality of shear members (500) are shear steel bars, and the bottom ends of the shear steel bars are welded to the top deck surface of the shear steel plate (600).
5. The precast deck structure of steel plate composite beam according to claim 1, wherein a plurality of support plates (700) are welded and fixed on the two lower open-ended lugs of the shear steel plate (600).
6. A prefabricated bridge deck structure of a steel plate composite beam comprises a bridge deck body (100), a substrate flat steel plate (200) and a plurality of shear members (500), and is characterized in that the bottom wall of the bridge deck body (100) is provided with the substrate flat steel plate (200) in a clinging manner, a shear steel plate (600) is arranged between the substrate flat steel plate (200) and the shear members (500), the shear steel plate (600) is detachably connected with the substrate flat steel plate (200) and the shear members (500), the shear members (500) and the shear steel plate (600) are pre-buried in the bridge deck body (100), the section of the shear steel plate (600) is in a ladder shape with a lower opening, a plurality of pouring holes (610) are formed in the top plate surface of the shear steel plate (600), and the shear members (500) are bound and arranged on a steel bar jig frame in the bridge deck body (100), a plurality of steel frame beams (900) are welded below the substrate flat steel plate (200).
7. The precast bridge deck structure of steel plate composite beam of claim 6, wherein the steel reinforcement jig comprises a plurality of hoop reinforcing rings (300) and a plurality of long steel bars (400), the long steel bars (400) are respectively connected with the upper and lower bars of the hoop reinforcing rings (300) through horizontal binding of steel wires, and both closed ends of the hoop reinforcing rings (300) extend outwards from the bridge deck body (100).
8. The precast bridge deck structure of a steel plate composite girder according to claim 7, wherein the plurality of shear members (500) are connected to the upper and lower tendons of the plurality of hoop reinforcing coils (300) by vertical binding of steel wires, respectively.
9. The precast bridge deck structure of steel plate composite beam of claim 8, wherein said plurality of shear members (500) are shear nails respectively, said shear nails penetrate through the shear steel plate (600) and protrude downward, and the downward extending bottom ends of said shear nails are integrally locked and connected with the shear steel plate (600) through screw blocks (510) which are connected with each other by screw threads.
10. The precast bridge deck structure of steel plate composite beam according to claim 6, wherein a plurality of support plates (700) are mounted on the two ear arms of the lower opening of the shear steel plate (600), the support plates (700) and the substrate flat steel plate (200) are integrally assembled and connected through shear bolts (800), and the tail ends of the shear bolts (800) are locked and provided with locknuts.
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