CN112411366A - Wet joint connecting structure of precast concrete bridge deck and construction method - Google Patents
Wet joint connecting structure of precast concrete bridge deck and construction method Download PDFInfo
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- CN112411366A CN112411366A CN202010229764.3A CN202010229764A CN112411366A CN 112411366 A CN112411366 A CN 112411366A CN 202010229764 A CN202010229764 A CN 202010229764A CN 112411366 A CN112411366 A CN 112411366A
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 126
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 148
- 239000010959 steel Substances 0.000 claims abstract description 148
- 210000001503 joint Anatomy 0.000 claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 238000009415 formwork Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011374 ultra-high-performance concrete Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005304 joining Methods 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
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer Methods 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
- E01D19/067—Flat continuous joints cast in situ
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Abstract
The embodiment of the invention discloses a wet joint connecting structure of a precast concrete bridge deck, which comprises a precast concrete bridge deck and a steel plate; the steel plate is fixedly connected with the end surface of one transverse side of the precast concrete bridge deck; the precast concrete decking includes vertical face, and the steel sheet laminating is on vertical face, and the upper and lower both ends of steel sheet all surpass vertical face, and two steel sheets that are located between the vertical face of two adjacent precast concrete decking laminate each other, and two steel sheets are located the part fixed connection of vertical face lower extreme, and the part fixed connection that is located vertical face upper end of two steel sheets, and the spread groove is enclosed out jointly to the upper end of the butt joint department of two adjacent precast concrete decking, and the fixed connection department of two steel sheets is by concrete placement in the spread groove. The embodiment of the invention has the advantages of convenient and quick on-site assembly, no template construction, no complicated procedures of on-site template installation and disassembly, small on-site pouring amount and high construction efficiency.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a wet joint connecting structure of a precast concrete bridge deck and a construction method.
Background
The composite structure bridge has the economic performance of integral stress, fully exerts the performance advantages of respective materials of steel and concrete, makes up the rationality of respective defects and the outstanding advantage of convenient construction, becomes a great development direction of the technical development of bridges in China, and has wide engineering application prospect.
Prefabricated decking joint construction is the weakest and comparatively complicated position of construction of atress in the integrated configuration bridge, and the wet seam of conventional prefabricated decking adopts annular reinforcing bar overlap joint and hangs the mould method construction more, and construction process is loaded down with trivial details, has influenced integrated configuration bridge construction progress greatly. In order to allow for efficient transfer of forces between the bars, appropriate connecting measures are typically taken for the bars, such as welding and tying, and it is necessary to provide sufficient anchoring or overlap length for the bars. When the formwork hanging method is adopted for construction, the problems of large workload of formwork installation and disassembly, rough surface after formwork disassembly, excessive moisture, long time for wet joint maintenance and the like exist.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a wet joint connection structure for a precast concrete deck slab, so as to solve the technical problems of large workload of on-site steel bar connection and large workload of formwork installation and removal in a precast deck slab connection structure.
In order to solve the above technical problem, the technical solution of the embodiment of the present invention is implemented as follows:
the wet joint connecting structure of the precast concrete bridge deck provided by the embodiment of the invention comprises: prefabricating a concrete bridge deck and a steel plate; the steel plate is fixedly connected to the end face of one transverse side of the precast concrete bridge deck; the precast concrete bridge deck slab comprises vertical surfaces, steel plates are attached to the vertical surfaces, the upper ends and the lower ends of the steel plates exceed the vertical surfaces, the two steel plates between the vertical surfaces of the precast concrete bridge deck slab are attached to each other, the two steel plates are located on the lower ends of the vertical surfaces and are fixedly connected to the upper ends of the vertical surfaces, connecting grooves are formed in the upper ends of the butt joints of the precast concrete bridge deck slab in an enclosing mode, and the fixed joints of the steel plates are poured by concrete into the connecting grooves.
According to the embodiment of the invention, the steel plates are fixed on the end surfaces of the precast concrete bridge deck plates in advance, and the connecting grooves are commonly defined at the upper ends of the butt joint parts of two adjacent precast concrete bridge deck plates, so that the connecting structure of concrete can be directly poured, the template installation and disassembly engineering in the conventional precast concrete bridge deck plate wet joint process is avoided, the on-site pouring amount is small, and the construction efficiency is high. Through the fixed connection of the upper end and the lower end of the steel plates of the vertical surfaces of the two adjacent precast concrete bridge deck plates, the mode of welding the precast concrete bridge deck plates on site through reinforcing steel bars in the conventional wet joint process is avoided, the welding space on site is narrow and small, the workload is large, the problems of difficult welding of the reinforcing steel bars on the lower layer and the like are solved, and the construction workload is reduced.
Furthermore, the wet seam connection structure of precast concrete bridge deck slab includes first bolt, two the steel sheet lower extreme is provided with first bolt hole respectively, first bolt wear to locate two the first bolt hole of steel sheet is downthehole with the lower extreme of fixed connection two the steel sheet.
Furthermore, an open notch is formed in the top end of the vertical surface of the precast concrete bridge deck, the open notches of two adjacent precast concrete bridge deck plates form the connecting groove together, and the steel plate extends into the connecting groove along the vertical direction.
Further, the width of the upper end of the connecting groove is 24-26 cm.
Furthermore, the wet seam connection structure of precast concrete bridge deck slab includes the second bolt, two the steel sheet upper end is provided with the second bolt hole respectively, the second bolt wear to locate two the second bolt hole of steel sheet is downthehole with fixed connection two the upper end of steel sheet.
Furthermore, the precast concrete deck slab comprises first reinforcing steel bars pre-embedded in the upper layer of the precast concrete deck slab, and the first reinforcing steel bars transversely extend into the connecting grooves and are poured into the connecting grooves by concrete.
Furthermore, the precast concrete bridge deck comprises an inclined plane, the inclined plane and the vertical plane are intersected to form an end surface on one transverse side of the precast concrete bridge deck, the steel plate comprises a vertical section and an inclined section, the vertical section is attached to the vertical plane, the inclined section is attached to the inclined plane, and the connecting groove is formed between the inclined sections of two adjacent steel plates; the wet seam connection structure of precast concrete decking includes the second reinforcing bar, the second reinforcing bar sets up in two the juncture of slope section, two the steel sheet all with the second steel bar welding.
Further, the width of the upper end of the connecting groove formed between the inclined sections of the two adjacent steel plates is 9-11 cm.
Furthermore, a plurality of welding nails are pre-embedded in the precast concrete bridge deck, and the end parts of the welding nails are welded with the steel plates.
Furthermore, a plurality of third steel bars are pre-embedded in the precast concrete deck slab, and the end parts of the third steel bars are welded with the steel plate.
The embodiment of the invention also discloses a construction method of the wet joint connecting structure of the precast concrete bridge deck, which comprises the following steps: butting two precast concrete bridge deck boards, wherein the end face of each precast concrete bridge deck board at the butt joint part is fixedly connected with a steel plate, the end face of each precast concrete bridge deck board comprises a vertical surface, the steel plates are attached to the vertical surfaces, the upper ends and the lower ends of the steel plates exceed the vertical surfaces, the parts of the two steel plates attached to the vertical surfaces are attached to each other, and the upper ends of the butt joint parts of the two precast concrete bridge deck boards jointly enclose a connecting groove;
fixedly connecting the parts of the two steel plates, which are positioned at the lower end of the vertical surface, and the parts of the two steel plates, which are positioned at the upper end of the vertical surface, wherein the parts of the two steel plates, which are positioned at the upper end of the vertical surface, are positioned in the connecting groove;
and pouring concrete into the connecting grooves.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view illustrating a wet joint connecting structure of a precast concrete deck slab and a steel plate according to an embodiment of the present invention;
FIG. 2 is a schematic view of a wet joint connecting structure of a precast concrete deck slab according to a first embodiment of the present application;
FIG. 3 is a schematic view of a wet joint connection structure of a precast concrete deck slab according to a second embodiment of the present application;
FIG. 4 is a schematic view of a wet joint connecting structure of a precast concrete deck slab according to a third embodiment of the present application;
FIG. 5 is a schematic view of a wet joint connecting structure of a precast concrete deck slab according to a fourth embodiment of the present application;
fig. 6 is a flowchart of a construction method of the wet joint connecting structure of the precast concrete deck slab according to the present application.
Description of reference numerals:
1. prefabricating a bridge deck; 2. a steel beam; 3. a shear connector; 4. joining the wet joint with the steel beam; 5. wet joints not combined with steel beams; 6. a steel plate; 7. welding nails; 8. a first bolt; 9. connecting grooves; 10. a second bolt; 11. a first reinforcing bar; 12. a second reinforcing bar; 13. a third reinforcing bar;
s1, vertical surface; s2, inclined surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and aspects can be formed by combining different features. In order to avoid unnecessary repetition, various possible combinations of the specific features of the invention will not be described further.
The steel-concrete composite beam is composed of precast concrete deck slabs 1, steel beams 2 and shear connectors 3, as shown in fig. 1, the precast concrete deck slabs 1 are connected with the steel beams 2 through the shear connectors 3, and the precast concrete deck slabs 1 are connected through wet joints. The wet joint is divided into a wet joint 4 combined with the steel beam 3 and a wet joint 5 not combined with the steel beam according to whether the wet joint is combined with the steel beam or not, the wet joint steel plate connecting structure of the precast concrete bridge deck is suitable for the wet joint 5 not connected with the steel beam, the embodiment of the invention is not particularly described, and the wet joints are all the wet joints 5 not combined with the steel beam.
The wet joint connecting structure of the precast concrete bridge deck provided by the embodiment of the invention comprises: prefabricating a concrete bridge deck 1 and a steel plate 6; the steel plate 6 is fixedly connected with the end surface of one transverse side of the precast concrete deck slab 1; precast concrete bridge deck 1 includes vertical face S1, and steel sheet 6 laminates on vertical face 11, and the upper and lower both ends of steel sheet 11 all exceed vertical face 11, and is concrete, and steel sheet 6 is along vertical arrangement in precast concrete bridge deck' S vertical face S1, can regard as permanent structure to strengthen the connection use of wet seam.
In some embodiments, as shown in fig. 2 and 4, the fixing connection of the steel plate 6 and the precast concrete deck slab 1 includes: a plurality of welding nails 7 are embedded in the precast concrete bridge deck slab 1, and the end parts of the welding nails 7 are welded with the steel plates 6. In other embodiments, as shown in fig. 3 and 5, the fixing connection of the steel plate 6 and the precast concrete deck slab 1 includes: a plurality of third reinforcing steel bars 13 are embedded in the precast concrete bridge deck 1, and the end parts of the third reinforcing steel bars 13 are welded with the steel plates 6. The steel plate 6 in the embodiment shown in fig. 2, 3, 4, 5 has both upper and lower ends beyond the vertical plane S1, wherein the lower end of the steel plate 6 extends to the outside of the precast concrete deck plate 1. It should be noted that the thickness of the steel plate 6 is not limited, and the specific situation is determined by calculation according to the structural stress, which is only an example in the figure.
The two steel plates 6 located between the vertical surfaces S1 of the two adjacent precast concrete bridge deck plates 1 are mutually attached, the parts of the two steel plates 6 located at the lower end of the vertical surface S1 are fixedly connected, the parts of the two steel plates 6 located at the upper end of the vertical surface S1 are fixedly connected, the upper ends of the butt joints of the two adjacent precast concrete bridge deck plates 1 jointly enclose the connecting grooves 9, and the fixed joints of the two steel plates are poured into the connecting grooves 9 by concrete. Specifically, two adjacent precast concrete bridge decks 1 are mutually related through steel plates 6, the two steel plates 6 are located the partial fixed connection of vertical face S1 lower extreme to and the partial fixed connection mode that is located the vertical face S1 upper end has solved the problem of the long-time maintenance of conventional wet seam, can realize short-term high-speed joint between two adjacent precast concrete bridge decks 1, can obtain great joint strength before the concrete hardens, can accelerate precast bridge deck construction speed. It should be noted that the Concrete poured into the connecting groove 9 may be a High-strength grouting material or an Ultra-High Performance Concrete UHPC (Ultra-High Performance Concrete), wherein the High-strength grouting material has the characteristics of good self-flowing property, quick hardening, High strength, good self-sealing property, rust prevention, and the like, and has the advantages of firm quality, shortened construction period, convenient use, and the like in the aspect of construction.
According to the embodiment of the invention, the steel plates 6 are fixed on the end surfaces of the precast concrete bridge deck boards 1 in advance, the connecting grooves 9 are commonly surrounded at the upper ends of the butt joints of the two adjacent precast concrete bridge deck boards 1, the concrete connecting structure can be directly poured, the template-free construction is realized, and the complicated processes of installing and disassembling the template on site are avoided. The design of the connecting structure of the precast concrete bridge deck steel plates 6 fully exerts the characteristic of rapid construction of the structure. The embodiment of the invention avoids the problems that the field welding space is narrow and the workload is large, the welding of the steel bars at the lower layer of the precast concrete bridge deck is difficult and the like when the precast concrete bridge decks are welded through the steel bars in the conventional wet joint process in the prior art, reduces the construction workload, accelerates the construction progress, realizes the field rapid assembly of the precast concrete bridge decks, and improves the assembly level of the steel-concrete composite beam.
The wet joint connecting structure of the precast concrete bridge deck of the embodiment of the invention solves the difficult technical problems of design and construction of wet joints of the composite beam, realizes the industrial assembly construction of engineering, prefabrication and on-site rapid assembly, practices the concepts of green construction and industrial manufacturing, is not only suitable for precast bridge decks of composite structure bridges, but also can be used for reference in the connection between precast concrete T beams or box beam flanges and the connection of precast floor slabs in building structures.
In one embodiment, the wet seam connection structure of the precast concrete deck slab includes a first bolt 8, the lower ends of the two steel plates 6 are respectively provided with a first bolt hole, and the first bolt 8 is inserted into the first bolt holes of the two steel plates 6 to fixedly connect the lower ends of the two steel plates 6. Specifically, as shown in fig. 2, 3, 4 and 5, the portions of the two steel plates 6 located at the lower end of the vertical plane S1 are fixedly connected to the outer side of the precast concrete deck 1 by the first bolts 8. The first bolt can be a high-strength bolt, the mode of fixedly connecting the high-strength bolt is convenient and simple, and the construction process is accelerated. It should be noted that the number of the first bolts 8 is not limited, and may be determined by calculation according to structural stress, and this embodiment is only illustrated as an example in the figure.
The top end of the precast concrete deck slab 1 on the vertical surface S1 is formed with an open notch, and the line shape of the notch at the end surface of the precast concrete deck slab is not fixed, so the shape of the connecting groove 9 formed by the open notches of two adjacent precast concrete deck slabs 1 is also not fixed, the connecting groove formed by the open notches is square in this embodiment, and the connecting groove may be trapezoidal in another embodiment. As shown in fig. 2 and 3, the steel plate 6 extends into the connecting groove 9 along the vertical direction, and since the top surface of the precast concrete deck slab 1 has a road pavement or a railway ballast bed, it is required to ensure flatness, the connecting groove 9 is required to be reserved at the upper end of the precast concrete deck slab 1 to provide a space for the fixed connection of the upper end of the steel plate 6.
In an embodiment, the width of the upper end of the connecting groove 9 is 24-26cm, and due to the wet joint connecting structure of the precast concrete bridge deck according to the embodiment of the present invention, the steel plate 6 is fixedly connected to the end surface of the precast concrete bridge deck 1, and the two steel plates 6 between the vertical surfaces S1 of the two adjacent precast concrete bridge decks 1 are attached to each other, so that the connecting groove 9 formed by opening a notch at the top end of the precast concrete bridge deck 1 at the vertical surface S1 can be controllably designed in the range of 24-26cm, which is just favorable for construction, and the part of the two steel plates 6 at the upper end of the vertical surface S1 is fixedly connected in the connecting groove, for example, the construction connection of the second bolt 10. Compared with the width of 50-80cm in the conventional construction, the width range of the wet joint is small to ensure the overlapping length of the steel bars, so that the field wet operation amount is greatly reduced.
In some embodiments, the wet seam connection structure of the precast concrete deck slab includes a second bolt 10, as shown in fig. 2 and 3, in the first and second embodiments of the present application, the upper ends of the two steel plates 6 are respectively provided with a second bolt hole, and the second bolt 10 is inserted into the second bolt hole of the two steel plates 6 to fixedly connect the upper ends of the two steel plates 6. The second bolts 10 may also be high-strength bolts, and are generally used for connecting steel plates, and the number of the second bolts 10 is not limited, and the specific situation is determined by calculation according to structural stress.
In the first embodiment and the second embodiment of the application, the upper end and the lower end of the two steel plates 6 are fixedly connected through the first bolt 8 and the second bolt 10 respectively, so that the construction amount is reduced, and the construction progress is accelerated; in addition, the wet joint connecting structure of the precast concrete bridge deck plate ensures that the upper end and the lower end of the precast concrete bridge deck plate obtain higher connecting strength, the connecting structure has better mechanical property and relatively better bending property, and can be used in the connecting parts of all precast concrete bridge deck plates.
In one embodiment, referring to fig. 2 and 3, the precast concrete deck slab 1 includes first reinforcing bars 11 embedded in an upper layer of the precast concrete deck slab, and the first reinforcing bars 11 laterally extend into the connecting grooves 9 and are poured into the connecting grooves 9. Specifically, the position that first reinforcing bar 11 transversely extended to in the connecting groove 9 is as far as possible in the upper end of steel sheet 6, avoids first reinforcing bar 11 and the crossing bending that leads to in the steel sheet 6 upper end, influences the inside atress of wet seam. When the two steel plates 6 between the vertical surfaces S1 of the two adjacent precast concrete bridge deck plates 1 are attached to each other, the first steel bars 11 embedded in the upper layer of the precast concrete bridge deck plates 1 are arranged in the connecting grooves 9 in a staggered manner, and are poured into the connecting grooves 9 by concrete, so that the connecting rigidity of the wet joints is further enhanced.
In the third embodiment and the fourth embodiment of the present application, as shown in fig. 4 and 5, the precast concrete bridge deck 1 includes an inclined surface S2, the inclined surface S2 intersects with the vertical surface S1 to form an end surface of one lateral side of the precast concrete bridge deck 1, the steel plate 6 includes a vertical section and an inclined section, the vertical section is attached to the vertical surface S1, the inclined section is attached to the inclined surface S2, and the connecting groove 9 is formed between the inclined sections of two adjacent steel plates; the connecting groove 9 is in the shape of an inverted triangle. The wet seam connection structure of precast concrete decking includes second reinforcing bar 12, and second reinforcing bar 12 sets up in the juncture of two slope sections, and two steel sheets 6 all weld with second reinforcing bar 12.
Because the inclined section of the steel plate 6 is attached to the inclined surface S2 of the precast concrete deck slab 1, the inclination range of the inclined section of the steel plate 6 cannot be too large in order to facilitate the welding of the second steel bar 12 and the two steel plates 6. Furthermore, the width of the upper end of the connecting groove formed between the inclined sections of the two adjacent steel plates is 9-11cm, compared with the embodiment in which the width of the upper end of the connecting groove ranges from 24 cm to 26cm, the connecting groove in the embodiment is smaller in size and more economical, and the field wet operation amount is greatly reduced. In this embodiment, the upper end of the prefabricated bridge deck is lower in connection strength than the prefabricated bridge deck is fixed by the second bolts 10 by welding the upper end portions of the two steel plates 6 on the vertical surface S1 through the second steel bars 12, and the prefabricated bridge deck can be used in the wet joint of the prefabricated concrete bridge deck in the mid-span positive bending moment area.
According to the wet joint connecting structure of the precast concrete bridge deck provided by the embodiment, the upper ends of the two steel plates are flexibly connected in a fixed mode, and can be determined and selected according to the site construction condition.
The embodiment of the invention also provides a construction method of the wet joint connecting structure of the precast concrete bridge deck, as shown in fig. 6, the construction method comprises the following steps:
t1: butting two precast concrete bridge deck plates 1, wherein the end face of each precast concrete bridge deck plate 1 at the butt joint is fixedly connected with a steel plate 6, the end face of each precast concrete bridge deck plate comprises a vertical surface S1, the steel plates 6 are attached to the vertical surface S1, the upper end and the lower end of each steel plate 6 exceed the vertical surface S1, the parts of the two steel plates 6 attached to the vertical surface S1 are attached to each other, and the upper ends of the butt joint of the two precast concrete bridge deck plates 1 jointly enclose a connecting groove 9;
t2: fixedly connecting the parts, positioned at the lower end of the vertical surface S1, of the two steel plates 6, and fixedly connecting the parts, positioned at the upper end of the vertical surface S1, of the two steel plates 6, wherein the parts, positioned at the upper end of the vertical surface S1, of the two steel plates 6 are positioned in the connecting grooves;
t3: concrete is poured into the connecting grooves 9.
Specifically, the precast concrete deck plate 1 and the steel plate 6 are prepared in advance at a factory, for example: when the part that two steel sheets 6 are located vertical face S1 lower extreme adopted first bolt 8 fixed connection, can punch at the steel sheet 6 lower extreme in advance when the mill is prefabricated, during the construction, directly wear to establish fixedly with first bolt 8 can to the construction of punching on the spot has been reduced the on-the-spot amount of labour. As in the foregoing embodiment, when the two steel plates 6 located at the upper ends of the vertical surface S1 are fixedly connected in different manners, the steel plates with different structures may be prefabricated in advance, and during construction, the steel plates with different structures are correspondingly fixedly connected in different manners, which has been described in the foregoing embodiment and will not be described herein again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (11)
1. The wet joint connecting structure of the precast concrete bridge deck is characterized by comprising a precast concrete bridge deck and a steel plate; the steel plate is fixedly connected to the end face of one transverse side of the precast concrete bridge deck; the precast concrete bridge deck slab comprises vertical surfaces, steel plates are attached to the vertical surfaces, the upper ends and the lower ends of the steel plates exceed the vertical surfaces, the two steel plates between the vertical surfaces of the precast concrete bridge deck slab are attached to each other, the two steel plates are located on the lower ends of the vertical surfaces and are fixedly connected to the upper ends of the vertical surfaces, connecting grooves are formed in the upper ends of the butt joints of the precast concrete bridge deck slab in an enclosing mode, and the fixed joints of the steel plates are poured by concrete into the connecting grooves.
2. The wet seam connection structure of a precast concrete bridge deck according to claim 1, comprising first bolts, wherein the lower ends of the two steel plates are respectively provided with first bolt holes, and the first bolts are inserted into the first bolt holes of the two steel plates to fixedly connect the lower ends of the two steel plates.
3. The precast concrete bridge deck wet seam connection structure of claim 1, wherein the precast concrete bridge deck is formed with an open notch at a top end of the vertical surface, the open notches of two adjacent precast concrete bridge deck plates together form the connection groove, and the steel plate extends into the connection groove in a vertical direction.
4. The wet seam connection structure of a precast concrete deck slab as set forth in claim 3, wherein the width of the upper end of the connection groove is 24-26 cm.
5. The wet seam connection structure of a precast concrete bridge deck according to claim 3, comprising second bolts, wherein second bolt holes are respectively formed at the upper ends of the two steel plates, and the second bolts are inserted into the second bolt holes of the two steel plates to fixedly connect the upper ends of the two steel plates.
6. The precast concrete bridge deck wet seam connection structure of claim 3, wherein the precast concrete bridge deck includes first reinforcing bars pre-buried in an upper layer of the precast concrete bridge deck, the first reinforcing bars extending laterally into the connection grooves and being concreted therein.
7. The wet seam connection structure of a precast concrete bridge deck according to claim 1, wherein the precast concrete bridge deck includes an inclined surface, the inclined surface intersects with the vertical surface to form an end surface of one lateral side of the precast concrete bridge deck, the steel plate includes a vertical section and an inclined section, the vertical section is attached to the vertical surface, the inclined section is attached to the inclined surface, and the connection groove is formed between the inclined sections of two adjacent steel plates; the wet seam connection structure of precast concrete decking includes the second reinforcing bar, the second reinforcing bar sets up in two the juncture of slope section, two the steel sheet all with the second steel bar welding.
8. The wet seam connection structure of precast concrete deck slab as set forth in claim 7, wherein the width of the upper end of the connection groove formed between the inclined sections of the adjacent two steel plates is 9-11 cm.
9. The wet seam connection structure of a precast concrete bridge deck according to claim 1, wherein a plurality of welding nails are embedded in the precast concrete bridge deck, and ends of the welding nails are welded to the steel plates.
10. The wet joint connection structure of a precast concrete deck plate according to claim 1, wherein a plurality of third reinforcing bars are embedded in the precast concrete deck plate, and ends of the third reinforcing bars are welded to the steel plates.
11. A construction method of a wet joint connecting structure of a precast concrete bridge deck is characterized by comprising the following steps:
butting two precast concrete bridge deck boards, wherein the end face of each precast concrete bridge deck board at the butt joint part is fixedly connected with a steel plate, the end face of each precast concrete bridge deck board comprises a vertical surface, the steel plates are attached to the vertical surfaces, the upper ends and the lower ends of the steel plates exceed the vertical surfaces, the parts of the two steel plates attached to the vertical surfaces are attached to each other, and the upper ends of the butt joint parts of the two precast concrete bridge deck boards jointly enclose a connecting groove;
fixedly connecting the parts of the two steel plates, which are positioned at the lower end of the vertical surface, and the parts of the two steel plates, which are positioned at the upper end of the vertical surface, wherein the parts of the two steel plates, which are positioned at the upper end of the vertical surface, are positioned in the connecting groove;
and pouring concrete into the connecting grooves.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114150568A (en) * | 2021-12-06 | 2022-03-08 | 广西路桥工程集团有限公司 | Light-duty combination beam longitudinal joint additional strengthening of assembled |
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| CN212533705U (en) * | 2020-03-27 | 2021-02-12 | 中铁第四勘察设计院集团有限公司 | Wet seam connection structure of precast concrete bridge deck |
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| CN114150568A (en) * | 2021-12-06 | 2022-03-08 | 广西路桥工程集团有限公司 | Light-duty combination beam longitudinal joint additional strengthening of assembled |
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