CN105839534A - Steel-ultra-high-performance concrete composite board connecting joint and construction method - Google Patents
Steel-ultra-high-performance concrete composite board connecting joint and construction method Download PDFInfo
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- CN105839534A CN105839534A CN201610321921.7A CN201610321921A CN105839534A CN 105839534 A CN105839534 A CN 105839534A CN 201610321921 A CN201610321921 A CN 201610321921A CN 105839534 A CN105839534 A CN 105839534A
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a steel-ultra-high-performance concrete composite board connecting joint and a construction method. The connecting joint comprises a steel bridge deck board, a connecting plate connected above the steel bridge deck board and an ultra-high-performance concrete layer poured on the steel bridge deck board. The connecting plate and the steel bridge deck board are connected through high-strength bolts, multiple longitudinal rebars and transverse rebars are arranged above the connecting plate, and at least one part of the longitudinal rebars are welded to the connecting plate. The ultra-high-performance concrete layer covers the connecting plate, the longitudinal rebars and the transverse rebars, multiple shear nails are fixedly arranged on the steel bridge deck board, the edges, close to the connecting plate, of the shear nails are encrypted, and the ultra-high-performance concrete layer covers the shear nails. The steel-ultra-high-performance concrete composite board connecting joint is small in internal stress and high in local tensile strength and rigidity, and the structural durability of a bridge can be improved.
Description
Technical field
The invention belongs to architectural detail and the technical field of construction thereof of bridge structure, particularly to a kind of steel-ultra-high performance concrete compoboard jointing and construction method.
Background technology
In existing large span steel beam bridge, much have employed the bolted technology of steel box-girder, as shown in Figure 1, steel bridge deck bolt join domain causes bridge deck pavement 8 stress unfavorable owing to steel cross section is weakened, especially on the bolt join domain cross section, boundary with non-bolt join domain, the stress that the abrupt change of cross-section causes concentrates the unfavorable stress more exacerbating bridge deck pavement, make bridge deck pavement that crack in tension easily occur, this not only greatly reduces the service life of bridge deck pavement, also cause bridge floor rain penetration to steel bridge deck 1 simultaneously, greatly reduce the service life of girder steel, the final durability affecting full-bridge.
Along with the development and progress of material science, occur in that ultra-high performance concrete in bridge construction field.Although it is high that ultra-high performance concrete has tensile strength, rigidity is big, the advantages such as good endurance, it is applied in steel box girder bridge form steel-ultra-high performance concrete combined bridge deck plate, can to a certain degree improve the stress of bolt join domain, but still fail to solve to cause rigidity to be suddenlyd change due to the abrupt change of cross-section on the cross section that bolt join domain and non-bolt join domain have a common boundary, and then cause the problem that stress concentrates, this makes local stress excessive, cracking risk is high, bridge structure durability and anti-fatigue performance are difficult to meet the significant deficiency such as normal use requirement and still exist.
Summary of the invention
The technical problem to be solved is, overcome the deficiency and defect mentioned in background above technology, there is provided that a kind of internal stress is little, local tensile strength and rigidity is high, can improve the steel-ultra-high performance concrete compoboard jointing of bridge structure durability, and provide the construction method of this jointing, process equipment is required low by this construction method, simple to operate, practical.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
A kind of steel-ultra-high performance concrete compoboard jointing, including steel bridge deck, it is connected to the connecting plate above adjacent two steel bridge decks and the ultra-high performance concrete layer pouring on described steel bridge deck, described connecting plate be arranged over many longitudinal reinforcements and transverse steel composition vertically and horizontally reinforcing bar, ultra-high performance concrete layer is coated with described connecting plate, longitudinal reinforcement and transverse steel, along being vertically and horizontally installed with multiple WELDING STUDS on described steel bridge deck, described ultra-high performance concrete layer is coated with described WELDING STUDS.
Above-mentioned steel-ultra-high performance concrete compoboard jointing, preferably, described WELDING STUDS is arranged in rows, WELDING STUDS encryption at connecting plate is arranged, gap is left between WELDING STUDS and the connecting plate of connecting plate, the width in described gap, not less than the diameter of described transverse steel, arranges at least described transverse steel (preferably 1) in this gap.
Above-mentioned steel-ultra-high performance concrete compoboard jointing, preferably, the elongated top being arranged on described connecting plate of described longitudinal reinforcement, at least partly welding with connecting plate in many longitudinal reinforcements, welding position is arranged on the intersection of longitudinal reinforcement and connecting plate both sides of the edge.
Above-mentioned steel-ultra-high performance concrete compoboard jointing, it is preferred that the half in described many longitudinal reinforcements is welded with connecting plate.
Above-mentioned steel-ultra-high performance concrete compoboard jointing, it is preferred that described connecting plate is connected with steel bridge deck by multiple high-strength bolts, described ultra-high performance concrete layer is coated with described high-strength bolt;Described WELDING STUDS is installed on the steel bridge deck beyond connecting plate.
Above-mentioned steel-ultra-high performance concrete compoboard jointing, it is preferred that described longitudinal reinforcement is arranged in the lower section of transverse steel.
As a total inventive concept, another aspect of the present invention provides the construction method of a kind of above-mentioned steel-ultra-high performance concrete compoboard jointing, comprises the following steps:
S1, prefabricated steel bridge deck and connecting plate are carried out on-the-spot splicing;
S2, on the steel bridge deck spliced, weld multiple WELDING STUDS, arrange WELDING STUDS in encryption at connecting plate, between WELDING STUDS and connecting plate, leave gap;
S3, elongated on connecting plate many longitudinal reinforcements are set, and on longitudinal reinforcement, arrange transverse steel;
S4, on steel bridge deck, pour ultra-high performance concrete layer, described connecting plate, WELDING STUDS longitudinal reinforcement and transverse steel are coated in the ultra-high performance concrete layer poured, complete the construction of jointing.
Above-mentioned construction method, it is preferred that in described step S3, the edge at least partially in connecting plate both sides in many longitudinal reinforcements welds with connecting plate.
As a total inventive concept, present invention also offers the construction method of a kind of above-mentioned steel-ultra-high performance concrete compoboard jointing, comprise the following steps:
S1, prefabricated steel bridge deck and connecting plate are carried out on-the-spot splicing;
S2, on the steel bridge deck spliced, weld multiple WELDING STUDS;
S3, elongated on connecting plate many longitudinal reinforcements are set, and on longitudinal reinforcement, arrange transverse steel, the edge at least partially in connecting plate both sides in many longitudinal reinforcements is welded with connecting plate;
S4, on steel bridge deck, pour ultra-high performance concrete layer, described connecting plate, WELDING STUDS longitudinal reinforcement and transverse steel are coated in the ultra-high performance concrete layer poured, complete the construction of jointing.
Compared with prior art, it is an advantage of the current invention that:
(1) by welding WELDING STUDS at join domain with the intersection of non-attached area, and at connecting plate, WELDING STUDS is being encrypted setting, ultra-high performance concrete layer is combined closely with steel bridge deck, common stress, improve local tensile strength and rigidity, reduce the stress brought due to the abrupt change of cross-section to concentrate, decrease cracking risk, it is ensured that the durability of bridge structure.
(2) by being welded on connecting plate by longitudinal reinforcement, local tensile strength and the rigidity of this jointing is further increased, it is ensured that the durability of bridge structure.
(3) jointing of the present invention the most only needs encryption welding WELDING STUDS or welding longitudinal reinforcement on connecting plate, without complicated construction technology and special construction equipment, ordinary soldering techniques is used to complete, equipment investment is little, simple to operation, relatively low to labor quality and technological requirement, there is great use value and good economic benefit, especially have broad application prospects in the Loads of Long-span Bridges deck paving using steel box-girder bolt technology and maintenance thereof.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is orthotropic steel box girder integral rigidity bridge floor bolt join domain generalized section in prior art.
Fig. 2 is the schematic top plan view of the steel-ultra-high performance concrete compoboard jointing of the embodiment of the present invention 1.
Fig. 3 is that the A-A of Fig. 2 is to cross-sectional schematic.
Fig. 4 is the schematic top plan view of the steel-ultra-high performance concrete compoboard jointing of the embodiment of the present invention 2.
Fig. 5 is that the B-B of Fig. 4 is to cross-sectional schematic.
Fig. 6 is the schematic top plan view of the steel-ultra-high performance concrete compoboard jointing of the embodiment of the present invention 3.
Fig. 7 is that the C-C of Fig. 6 is to cross-sectional schematic.
Marginal data:
1, steel bridge deck;2, connecting plate;3, ultra-high performance concrete layer;4, WELDING STUDS;5, longitudinal reinforcement;6, transverse steel;7, high-strength bolt;8, bridge deck pavement.
Detailed description of the invention
For the ease of understanding the present invention, below in conjunction with Figure of description and preferred embodiment, the present invention is made more comprehensively, describes meticulously, but protection scope of the present invention is not limited to embodiment in detail below.
It should be strongly noted that when a certain element is described as on " being connected to " another element, it can be directly connected on another element, it is also possible to be to be indirectly coupled on another element by other intermediate connectors.
Unless otherwise defined, the implication that all technical term used hereinafter is generally understood that with those skilled in the art is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limit the scope of the invention.
Embodiment
1
The steel of a kind of present invention-ultra-high performance concrete compoboard jointing, this jointing is mainly used in the Loads of Long-span Bridges deck paving and the maintenance process thereof that use steel box-girder bolt technology, and the structural representation of this jointing is as shown in Figures 2 and 3.From Fig. 2 and Fig. 3, it is mainly by the two of bottom pieces of steel bridge decks 1 be positioned at the connecting plate 2 above two pieces of steel bridge decks 1 and form, this connecting plate 2 is connected fixing by many high-strength bolts 7 with two pieces of steel bridge decks 1, connecting plate 2 be arranged over many longitudinal reinforcements 5, the top of longitudinal reinforcement 5 sets up many transverse steels 6, multiple WELDING STUDS 4 it is welded with on steel bridge deck 1, this WELDING STUDS 4 is in arranged in rows, and it is being encrypted setting at connecting plate 2, substantially increase local tensile strength and the rigidity of this jointing, reduce the stress brought due to the abrupt change of cross-section to concentrate, decrease cracking risk.Leaving gap between the WELDING STUDS 4 and connecting plate 2 of connecting plate 2, the width in this gap is not less than the diameter of transverse steel 6, in order to places transverse steel 6 in the gap, reduces the local stress that bolt join domain has a common boundary with non-bolt join domain.The top one-piece casting of steel bridge deck 1 has ultra-high performance concrete layer 3, in above-mentioned connecting plate 2, WELDING STUDS 4, longitudinal reinforcement 5, transverse steel 6 and high-strength bolt 7 are coated on by this ultra-high performance concrete layer 3.This jointing is compared with existing orthotropic steel box girder integral rigidity bridge floor bolt joint (seeing Fig. 1), steel bridge deck 1 has welded WELDING STUDS 4, and at connecting plate 2, WELDING STUDS 4 is being encrypted setting, ultra-high performance concrete layer 3 is combined closely with steel bridge deck 1, common stress, it is ensured that the durability of bridge structure.
The construction method of the above-mentioned steel of a kind of the present embodiment-ultra-high performance concrete compoboard jointing, specifically includes following steps:
(1) girder steel is set up: carrying out splicing (bolt) operation prefabricated, on-the-spot of girder steel according to conventional steel bridge method for bridge construction successively, until completing steel girder erection, steel bridge deck 1 and connecting plate 2 being spliced;
(2) WELDING STUDS is welded on steel bridge deck: the steel bridge deck 1 setting up connection is carried out derusting by sandblasting, to ensure the surface cleaning of steel bridge deck 1, then with welding gun, WELDING STUDS 4 is vertically and horizontally welded on steel bridge deck 1, near bolt join domain (at connecting plate 2) encryption welding WELDING STUDS 4, but ensure that WELDING STUDS 4 and connecting plate 2 keep certain gap, gap preferably can arrange that a transverse steel 6 is advisable, and then removes welding slag;
(3) Construction Arrangement vertical, horizontal reinforcing bar: on the steel bridge deck 1 having welded WELDING STUDS 4 (in the top of connecting plate 2) arrange vertical, horizontal reinforcing bar, longitudinal reinforcement 5 under, transverse steel 6 is upper;
(4) cast ultra-high performance concrete layer: the steel bridge deck 1 upper ultra-high performance concrete after constructing through step (2) and (3), and ensure that connecting plate 2, WELDING STUDS 4, longitudinal reinforcement 5 and transverse steel 6 are embedded in ultra-high performance concrete, form ultra-high performance concrete layer 3, i.e. complete the construction of the steel-ultra-high performance concrete compoboard jointing of the present embodiment.
Embodiment
2
The steel of a kind of present invention-ultra-high performance concrete compoboard jointing, this jointing is mainly used in the Loads of Long-span Bridges deck paving and the maintenance process thereof that use steel box-girder bolt technology, and the structural representation of this jointing is as shown in Figure 4 and Figure 5.From Fig. 4 and Fig. 5, it is mainly by the two of bottom pieces of steel bridge decks 1 be positioned at the connecting plate 2 above two pieces of steel bridge decks 1 and form, this connecting plate 2 is connected fixing by many high-strength bolts 7 with two pieces of steel bridge decks 1, connecting plate 2 be arranged over many longitudinal reinforcements 5, the top of longitudinal reinforcement 5 sets up many transverse steels 6, multiple WELDING STUDS 4 it is welded with on steel bridge deck 1, this WELDING STUDS 4 is in arranged in rows, and it is being encrypted setting at connecting plate 2, gap is left between the WELDING STUDS 4 and connecting plate 2 of connecting plate 2, the width in this gap is not less than the diameter of transverse steel 6, to place transverse steel 6 in the gap, reduce the local stress that bolt join domain has a common boundary with non-bolt join domain.The top one-piece casting of steel bridge deck 1 has ultra-high performance concrete layer 3, in above-mentioned connecting plate 2, WELDING STUDS 4, longitudinal reinforcement 5, transverse steel 6 and high-strength bolt 7 are coated on by this ultra-high performance concrete layer 3.
In the present embodiment, the many elongated tops being arranged on connecting plate 2 of longitudinal reinforcement 5, centre does not turns off, to improve tensile strength and rigidity, being welded and fixed with connecting plate 2 at least partially in the connecting plate 2 edge near non-attached area in these many longitudinal reinforcements 5, reduces this jointing further and concentrates at the stress of bolt join domain with non-attached area intersection, improve local tensile strength and rigidity, decrease cracking risk, it is ensured that the durability of bridge structure.Preferably the longitudinal reinforcement 5 of half is welded with connecting plate 2 in the connecting plate 2 edge near non-attached area.This jointing is compared with existing orthotropic steel box girder integral rigidity bridge floor bolt joint (seeing Fig. 1), steel bridge deck 1 has welded WELDING STUDS 4, at connecting plate 2, WELDING STUDS 4 is being encrypted setting, and longitudinal reinforcement 5 is welded on connecting plate 2, substantially increase local tensile strength and the rigidity of this jointing, it is ensured that the durability of bridge structure.
The construction method of the above-mentioned steel of a kind of the present embodiment-ultra-high performance concrete compoboard jointing, specifically includes following steps:
(1) girder steel is set up: carrying out splicing (bolt) operation prefabricated, on-the-spot of girder steel according to conventional steel bridge method for bridge construction successively, until completing steel girder erection, steel bridge deck 1 and connecting plate 2 being spliced;
(2) WELDING STUDS is welded on steel bridge deck: the steel bridge deck 1 setting up connection is carried out derusting by sandblasting, to ensure the surface cleaning of steel bridge deck 1, then with welding gun, WELDING STUDS 4 is vertically and horizontally welded on steel bridge deck 1, near bolt join domain (at connecting plate 2) encryption welding WELDING STUDS 4, but ensure that WELDING STUDS 4 and connecting plate 2 keep certain gap, gap preferably can arrange that a transverse steel 6 is advisable, and then removes welding slag;
(3) Construction Arrangement vertical, horizontal reinforcing bar: arrange vertical, horizontal reinforcing bar on the steel bridge deck 1 having welded WELDING STUDS 4 (in the top of connecting plate 2), longitudinal reinforcement 5 under, transverse steel 6 is upper, and the elongated top by connecting plate 2 of longitudinal reinforcement 5, centre is uninterrupted;And at least part of longitudinal reinforcement 5 is welded in the edge (join domain with non-attached area intersection) of connecting plate 2, on connecting plate 2, preferably weld the longitudinal reinforcement 5 of half quantity;
(4) cast ultra-high performance concrete layer: the steel bridge deck 1 upper ultra-high performance concrete after constructing through step (2) and (3), and ensure that connecting plate 2, WELDING STUDS 4, longitudinal reinforcement 5 and transverse steel 6 are embedded in ultra-high performance concrete, form ultra-high performance concrete layer 3, i.e. complete the construction of the steel-ultra-high performance concrete compoboard jointing of the present embodiment.
Embodiment
3
The steel of a kind of present invention-ultra-high performance concrete compoboard jointing, this jointing is mainly used in the Loads of Long-span Bridges deck paving and the maintenance process thereof that use steel box-girder bolt technology, and the structural representation of this jointing is as shown in Figure 6 and Figure 7.From Fig. 6 and Fig. 7, it is mainly by the two of bottom pieces of steel bridge decks 1 be positioned at the connecting plate 2 above two pieces of steel bridge decks 1 and form, this connecting plate 2 is connected fixing by many high-strength bolts 7 with two pieces of steel bridge decks 1, connecting plate 2 be arranged over many longitudinal reinforcements 5, the top of longitudinal reinforcement 5 sets up many transverse steels 6, multiple WELDING STUDS 4 it is welded with on steel bridge deck 1, the top one-piece casting of steel bridge deck 1 has ultra-high performance concrete layer 3, this ultra-high performance concrete layer 3 is by above-mentioned connecting plate 2, WELDING STUDS 4, longitudinal reinforcement 5, in transverse steel 6 and high-strength bolt 7 are coated on.The many elongated tops being arranged on connecting plate 2 of longitudinal reinforcement 5, centre does not turns off, to improve tensile strength and rigidity, being welded and fixed with connecting plate 2 at least partially in the connecting plate 2 edge near non-attached area in these many longitudinal reinforcements 5, reduce this jointing further to concentrate at the stress of bolt join domain with non-attached area intersection, improve local tensile strength and rigidity, decrease cracking risk, it is ensured that the durability of bridge structure.Preferably the longitudinal reinforcement 5 of half is welded with connecting plate 2 in the connecting plate 2 edge near non-attached area.By longitudinal reinforcement 5 is welded on connecting plate 2, it is effectively improved local tensile strength and the rigidity of this jointing, guarantee the durability of bridge structure, and this jointing is without complicated construction technology and special construction equipment, ordinary soldering techniques is used to complete, equipment investment is little, simple to operation, relatively low to labor quality and technological requirement, there is great use value and good economic benefit, especially have broad application prospects in the Loads of Long-span Bridges deck paving using steel box-girder bolt technology and maintenance thereof.
The construction method of the above-mentioned steel of a kind of the present embodiment-ultra-high performance concrete compoboard jointing, specifically includes following steps:
(1) girder steel is set up: carrying out splicing (bolt) operation prefabricated, on-the-spot of girder steel according to conventional steel bridge method for bridge construction successively, until completing steel girder erection, steel bridge deck 1 and connecting plate 2 being spliced;
(2) WELDING STUDS is welded on steel bridge deck: the steel bridge deck 1 setting up connection is carried out derusting by sandblasting, to ensure the surface cleaning of steel bridge deck 1, is then vertically and horizontally welded on steel bridge deck 1 by WELDING STUDS 4 with welding gun, then removes welding slag;
(3) Construction Arrangement vertical, horizontal reinforcing bar: arrange vertical, horizontal reinforcing bar on the steel bridge deck 1 having welded WELDING STUDS 4 (in the top of connecting plate 2), longitudinal reinforcement 5 under, transverse steel 6 is upper, and the elongated top by connecting plate 2 of longitudinal reinforcement 5, centre is uninterrupted;And at least part of longitudinal reinforcement 5 is welded in the edge (join domain with non-attached area intersection) of connecting plate 2, on connecting plate 2, preferably weld the longitudinal reinforcement 5 of half quantity;
(4) cast ultra-high performance concrete layer: the steel bridge deck 1 upper ultra-high performance concrete after constructing through step (2) and (3), and ensure that connecting plate 2, WELDING STUDS 4, longitudinal reinforcement 5 and transverse steel 6 are embedded in ultra-high performance concrete, form ultra-high performance concrete layer 3, i.e. complete the construction of the steel-ultra-high performance concrete compoboard jointing of the present embodiment.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. steel-ultra-high performance concrete compoboard jointing, including steel bridge deck (1), the connecting plate (2) being connected to adjacent two steel bridge decks (1) top and the ultra-high performance concrete layer (3) pouring on described steel bridge deck (1), described connecting plate (2) be arranged over many longitudinal reinforcements (5) and transverse steel (6), described ultra-high performance concrete layer (3) is coated with described connecting plate (2), longitudinal reinforcement (5) and transverse steel (6), it is characterized in that: described steel bridge deck (1) is upper along being vertically and horizontally installed with multiple WELDING STUDS (4), described ultra-high performance concrete layer (3) is coated with described WELDING STUDS (4).
Steel the most according to claim 1-ultra-high performance concrete compoboard jointing, it is characterized in that: described WELDING STUDS (4) is in arranged in rows, WELDING STUDS (4) encryption near connecting plate (2) place is arranged, between WELDING STUDS (4) and the connecting plate (2) of connecting plate (2), leave gap, this gap is arranged at least described transverse steel (6).
Steel the most according to claim 2-ultra-high performance concrete compoboard jointing, it is characterized in that: the elongated top being arranged on described connecting plate (2) of described longitudinal reinforcement (5), at least partly welding with connecting plate (2) in many longitudinal reinforcements (5), welding position is arranged on the intersection of longitudinal reinforcement (5) and connecting plate (2) both sides of the edge.
Steel the most according to claim 1-ultra-high performance concrete compoboard jointing, it is characterized in that: the elongated top being arranged on described connecting plate (2) of described longitudinal reinforcement (5), at least partly welding with connecting plate (2) in many longitudinal reinforcements (5), welding position is arranged on the intersection of longitudinal reinforcement (5) and connecting plate (2) both sides of the edge.
5. according to the steel described in claim 3 or 4-ultra-high performance concrete compoboard jointing, it is characterised in that: the half in described many longitudinal reinforcements (5) is welded with connecting plate (2).
6. according to the steel according to any one of claim 1 ~ 5-ultra-high performance concrete compoboard jointing, it is characterized in that: described connecting plate (2) is connected with steel bridge deck (1) by multiple high-strength bolts (7), and described ultra-high performance concrete layer (3) is coated with described high-strength bolt (7);Described WELDING STUDS (4) is installed on the steel bridge deck (1) beyond connecting plate (2).
7. according to the steel according to any one of claim 1 ~ 5-ultra-high performance concrete compoboard jointing, it is characterised in that: described longitudinal reinforcement (5) is arranged in the lower section of transverse steel (6).
8. a construction method for steel-ultra-high performance concrete compoboard jointing, comprises the following steps:
S1, prefabricated steel bridge deck (1) and connecting plate (2) are carried out on-the-spot splicing;
S2, weld multiple WELDING STUDSs (4) the steel bridge deck (1) spliced is upper, arrange WELDING STUDS (4) in the encryption near connecting plate (2) place, between WELDING STUDS (4) and connecting plate (2), leave gap;
S3, the most elongated many longitudinal reinforcements (5) are set connecting plate (2) is upper, and on longitudinal reinforcement (5), arrange transverse steel (6);
S4, on steel bridge deck (1), pour ultra-high performance concrete layer (3), described connecting plate (2), WELDING STUDS (4) longitudinal reinforcement (5) and transverse steel (6) are coated in the ultra-high performance concrete layer (3) poured, complete the construction of jointing.
Construction method the most according to claim 8, it is characterised in that: in described step S3, the edge at least partially in connecting plate (2) both sides in many longitudinal reinforcements (5) welds with connecting plate (2).
10. a construction method for the steel as described in claim 5 or 6-ultra-high performance concrete compoboard jointing, comprises the following steps:
S1, prefabricated steel bridge deck (1) and connecting plate (2) are carried out on-the-spot splicing;
S2, the multiple WELDING STUDSs of welding (4) on the steel bridge deck (1) spliced;
S3, the most elongated many longitudinal reinforcements (5) are set connecting plate (2) is upper, and on longitudinal reinforcement (5), arrange transverse steel (6), the edge at least partially in connecting plate (2) both sides in many longitudinal reinforcements (5) is welded with connecting plate (2);
S4, on steel bridge deck (1), pour ultra-high performance concrete layer (3), described connecting plate (2), WELDING STUDS (4) longitudinal reinforcement (5) and transverse steel (6) are coated in the ultra-high performance concrete layer (3) poured, complete the construction of jointing.
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CN106638306A (en) * | 2017-02-20 | 2017-05-10 | 湖南大学 | Steel-ultrahigh performance concrete combined bridge deck structure with short-steel-bar anti-shear structures and construction method thereof |
CN108265626A (en) * | 2018-03-29 | 2018-07-10 | 同济大学 | Reinforcing steel bar-steel plate skeleton combined bridge deck and its construction method |
CN109468939A (en) * | 2019-01-04 | 2019-03-15 | 武汉二航路桥特种工程有限责任公司 | Steel case bridge floor composite reinforcement paving structure and its construction method |
CN109853382A (en) * | 2019-03-22 | 2019-06-07 | 中铁大桥科学研究院有限公司 | A kind of floorings assembled rigid unit and the bridge deck structure using the assembled rigid unit |
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