CN112626998A - Bridge with bridge hollow slab connecting device and construction method thereof - Google Patents
Bridge with bridge hollow slab connecting device and construction method thereof Download PDFInfo
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- CN112626998A CN112626998A CN202110012180.5A CN202110012180A CN112626998A CN 112626998 A CN112626998 A CN 112626998A CN 202110012180 A CN202110012180 A CN 202110012180A CN 112626998 A CN112626998 A CN 112626998A
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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
- E01D1/00—Bridges in general
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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
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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
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明公开了一种带有桥梁空心板连接装置的桥梁及其施工方法，包括若干预制空心板，若干预制空心板依次横向连接，相邻两个预制空心板之间连接有连接装置；连接装置包括两个预埋钢板、多个穿孔钢板、多个穿孔抗剪钢筋和后浇湿接缝混凝土，两个预埋钢板分别与相邻两个预制空心板连接，多个穿孔钢板沿空心板纵向依次间隔布置于两个预埋钢板之间，多个穿孔抗剪钢筋沿空心板纵向穿插于多个穿孔钢板之间，后浇湿接缝混凝土浇筑于两个预埋钢板之间。本发明结构简单，施工方便，具有良好的抗剪承载力和整体性能，有效地解决了常规空心板接缝处的病害；提高空心板接缝的使用寿命，提高了接缝的防水性能和整体性能，能够满足空心板梁长期服役的使用需求。
The invention discloses a bridge with a bridge hollow slab connecting device and a construction method thereof, comprising a plurality of prefabricated hollow slabs, the several prefabricated hollow slabs are connected laterally in sequence, and a connecting device is connected between two adjacent prefabricated hollow slabs; the connecting device It includes two pre-embedded steel plates, multiple perforated steel plates, multiple perforated shear steel bars and post-casting wet joint concrete. The two embedded steel plates are respectively connected with two adjacent prefabricated hollow slabs, and the multiple perforated steel plates are longitudinally arranged along the hollow slabs. Arranged between two pre-embedded steel plates in sequence, a plurality of perforated shearing steel bars are inserted between the plurality of perforated steel plates along the longitudinal direction of the hollow plate, and post-cast wet joint concrete is poured between the two pre-embedded steel plates. The invention has the advantages of simple structure, convenient construction, good shear bearing capacity and overall performance, effectively solving the diseases of the joints of the conventional hollow slabs, improving the service life of the joints of the hollow slabs, and improving the waterproof performance and the overall performance of the joints. It can meet the needs of long-term service of hollow plate beams.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a bridge with a bridge hollow slab connecting device and a construction method thereof.
Background
In recent years, with the rapid development of socioeconomic performance in China, the construction technology of urban bridges and highway bridges is rapidly developed. At present, the structural form of a large number of domestic middle-small span concrete precast bridges still generally adopts a precast hollow slab structure. The prefabricated hollow slab has good economical efficiency and simpler design and construction, and is the most common structural form of medium and small span bridges. However, the conventional hollow slab is easy to generate more hinge joint diseases at the joint, namely, the conventional hollow slab is longitudinally cracked along slab joints under the action of vehicle load and reflected to the bridge deck pavement, so that the transverse integrity between beam slabs is reduced, and the safety of the bridge structure is influenced; meanwhile, after the bridge deck pavement is damaged, rainwater permeates into the bridge deck system and the hinge joints to accelerate the corrosion of the bridge deck reinforcing mesh, the connecting reinforcing steel bars among the hinge joints and the stress reinforcing steel bars of the hollow plates. The bearing capacity of the hollow plate structure is greatly weakened, and a large number of hollow plates become potential safety hazards of transportation.
In order to solve the problem, the hollow slab structure should combine the characteristics of damage and stress, and a hollow slab connection mode which is convenient and rapid to construct, clear in stress and good in integrity and durability is needed. The invention can effectively avoid various diseases of the joint of the conventional hollow slab, and can also produce good effects on shortening the construction period and prolonging the service life of the joint of the hollow slab.
Disclosure of Invention
The invention aims to solve the technical problems that aiming at the defects in the prior art, the invention provides a bridge with a bridge hollow slab connecting device and a construction method thereof, which have the advantages of simple structure, convenient construction, good shear-resistant bearing capacity and integral performance, and effectively solves the problems of the joint of the conventional hollow slabs; the service life of the seam of the hollow slab is prolonged, the waterproof performance and the overall performance of the seam are improved, and the long-term service requirement of the hollow slab beam can be met.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a bridge with a bridge hollow slab connecting device comprises a plurality of hollow slabs, wherein the hollow slabs are sequentially and transversely connected, and a connecting device is connected between every two adjacent hollow slabs;
connecting device includes two pre-buried steel sheets, a plurality of perforation shear reinforcement and post-cast wet joint concrete, and two pre-buried steel sheets are connected with two adjacent hollow core slabs respectively, and a plurality of perforation steel sheets are vertically arranged between two pre-buried steel sheets along hollow core slab interval in proper order, and a plurality of perforation shear reinforcement are vertically alternates between a plurality of perforation steel sheets along hollow core slab, and post-cast wet joint concrete pours between two pre-buried steel sheets.
According to the technical scheme, the plurality of perforated steel plates are divided into two groups and are respectively connected with the two embedded steel plates, and the perforated steel plates respectively connected with the two embedded steel plates are longitudinally arranged between the two embedded steel plates in a staggered mode along the hollow plate.
According to the technical scheme, the perforated steel plate is welded with the corresponding embedded steel plate.
According to the technical scheme, the embedded steel plates are attached to the side faces of the prefabricated hollow plates and are connected into a whole.
According to the technical scheme, the embedded steel plate is connected with the prefabricated hollow slab through the embedded anchoring steel bars.
According to the technical scheme, the plate surface of the perforated steel plate is consistent with the cross section of the prefabricated hollow plate.
According to the technical scheme, the perforated steel plates are arranged at intervals of 400-600 mm along the longitudinal direction of the hollow plate.
According to the technical scheme, the bridge floor cast-in-place layer and the asphalt pavement layer are sequentially paved above the spliced precast hollow slab.
According to the technical scheme, the outer side of the prefabricated hollow slab at the outermost side is provided with the anti-collision guardrail.
A bridge construction method adopting the bridge hollow slab connecting device comprises the following steps:
1) connecting and manufacturing the pre-buried steel plate and the perforated steel plate on the prefabricated hollow slab in a factory;
2) transporting a plurality of hollow core slabs to a site, sequentially hoisting and splicing, wherein perforated steel plates on two adjacent hollow core slabs are arranged in a staggered manner along the longitudinal direction of the hollow core slabs;
3) inserting and connecting the perforated shear steel bars with a plurality of perforated steel plates;
4) and (3) casting concrete in the splicing joint formed between two adjacent hollow precast slabs in situ to form post-cast wet joint concrete, and transversely and sequentially connecting a plurality of hollow precast slabs into a whole.
The invention has the following beneficial effects:
the invention has simple structure, convenient construction, good shearing-resistant bearing capacity and integral performance, and effectively solves the problem of the defects at the joint of the conventional hollow slab; the service life of the seam of the hollow slab is prolonged, the waterproof performance and the overall performance of the seam are improved, and the long-term service requirement of the hollow slab beam can be met.
Drawings
FIG. 1 is a cross-section of a bridge with a bridge cavity plate connection according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of a connecting device according to an embodiment of the present invention;
FIG. 3 is a view A-A of FIG. 1;
in the figure, 1-pre-buried steel plate, 2-perforated steel plate, 3-pre-buried anchoring steel bar, 4-perforated shear steel bar, 5-precast hollow slab, 6-post-pouring wet joint concrete, 7-bridge deck cast-in-place layer, 8-asphalt pavement layer and 9-anti-collision guardrail.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, a bridge with a bridge hollow slab connecting device according to an embodiment of the present invention includes a plurality of hollow slabs 5, the plurality of hollow slabs 5 being connected in sequence and transversely, and a connecting device connected between two adjacent hollow slabs 5;
connecting device includes two pre-buried steel sheets 1, a plurality of perforation steel sheets 2, a plurality of perforation shear steel 4 and post-pouring wet joint concrete 6, two pre-buried steel sheets 1 are connected with two adjacent hollow core slabs 5 respectively, a plurality of perforation steel sheets 2 are vertically arranged between two pre-buried steel sheets 1 along hollow core slab interval in proper order, a plurality of perforation shear steel 4 vertically alternate between a plurality of perforation steel sheets 2 along hollow core slab, post-pouring wet joint concrete 6 pours between two pre-buried steel sheets 1.
Further, a plurality of perforation steel sheet 2 divide into two sets ofly, are connected with two pre-buried steel sheet 1 respectively, and the perforation steel sheet 2 of being connected respectively with two pre-buried steel sheet 1 is vertically along the hollow core slab and is the staggered arrangement between two pre-buried steel sheet 1.
Further, the perforated steel plate 2 is welded to the corresponding embedded steel plate 1.
Further, the side surfaces of the embedded steel plate 1 and the precast hollow plate 5 are attached to be connected into a whole.
Further, the embedded steel plate 1 is connected with the hollow precast slab 5 through the embedded anchoring steel bars 3.
Further, the plate surface of the perforated steel plate 2 is consistent with the cross section of the hollow slab 5.
Further, the perforated steel plates 2 are arranged at intervals of 400mm to 600mm in the longitudinal direction of the hollow plate.
Further, it is preferable that the perforated steel plates 2 are arranged every 500mm interval in the longitudinal direction of the hollow plate.
Furthermore, a bridge deck cast-in-place layer 7 and an asphalt pavement layer 8 are sequentially paved above the spliced hollow precast slabs 5.
Furthermore, the outer side of the upper end surface of the precast hollow slab 5 at the outermost side is provided with an anti-collision guardrail 9.
A bridge construction method adopting the bridge hollow slab connecting device comprises the following steps:
1) connecting and manufacturing the embedded steel plate 1 and the perforated steel plate 2 on the prefabricated hollow slab 5 in a factory;
2) transporting a plurality of hollow core slabs 5 to a site, sequentially carrying out hoisting splicing, wherein perforated steel plates 2 on two adjacent hollow core slabs 5 are arranged in a staggered manner along the longitudinal direction of the hollow core slabs;
3) inserting and connecting the perforated shear steel bars 4 with the plurality of perforated steel plates 2;
4) and (3) casting concrete in the splicing joint formed between two adjacent hollow precast slabs 5 in situ to form post-cast wet joint concrete 6, and transversely and sequentially connecting a plurality of hollow precast slabs 5 into a whole.
The working principle of the invention is as follows: the hollow slab connecting device provided by the embodiment of the invention comprises an embedded steel plate 1, a perforated steel plate 2, embedded anchoring steel bars 3, perforated shear-resistant steel bars 4, a prefabricated hollow slab 5, post-poured wet joint concrete 6, a bridge deck cast-in-place layer 7, an asphalt pavement layer 8 and an anti-collision guardrail 9.
The prefabricated hollow slab 5 is prefabricated in factories in a mode that the embedded anchoring steel bars 3, the embedded steel plates 1 and the perforated steel plates 2 are arranged on two sides of the prefabricated hollow slab. During on-site hoisting construction, the post-poured wet joint concrete 6 and the perforated shear steel bars 4 are adopted to perform transverse joint connection under the combined action of the pre-buried perforated steel plates 2, so that the hollow plates are transversely connected into a whole.
Further, when the precast hollow slab 5 is precast in a factory, the embedded anchoring steel bars 3 and the embedded steel plates 1 are arranged on two sides. The steel plates 2 with the through holes on the two sides are welded with the embedded steel plates 1 with the embedded anchoring steel bars 3 to form an integral steel member;
further, after the prefabricated hollow slab 5 is transported to the site, the construction is carried out by adopting sequential hoisting;
further, the prefabricated hollow slab 5 is connected with the perforated shear steel bars 4 through the pre-buried perforated steel plates 2 on the two sides, and then cast-in-place through the post-pouring wet joint concrete 6, so that the joints of the hollow slab are transversely connected.
The working process of the invention is as follows: the prefabricated hollow slab 5 is prefabricated in a factory through the structural form that the two sides are provided with the embedded anchoring steel bars 3, the embedded steel plates 1 and the perforated steel plates 2, and is transported to the site and then sequentially subjected to hoisting construction. The prefabricated hollow slab 5 is connected with the perforated shear steel bars 4 through the pre-buried perforated steel plates 2 on the two sides, and then the post-pouring wet joint concrete 6 is adopted for in-situ pouring, so that the joints of the hollow slab are transversely connected to form a whole.
Specifically, the prefabrication of the hollow core slabs 5 is performed in a factory according to the overall design requirements of the bridge structure. When prefabricating, set up pre-buried anchor bar 3, pre-buried steel sheet 1 and perforation steel sheet 2 in every precast hollow board both sides. And after the maintenance is finished, transporting the prefabricated hollow slab 5 to the site. And sequentially hoisting the hollow core slabs 5 to the abutment on site in a hoisting mode. The prefabricated hollow slab 5 is formed into a whole by connecting the pre-buried perforated steel plates 2 on two sides with the perforated shear steel bars 4 and then pouring the post-poured wet joint concrete 6 on site. The pre-buried perforation steel sheet 2 of precast hollow slab both sides is along the vertical staggered arrangement of hollow slab. And then constructing a bridge deck cast-in-place layer 7, an asphalt pavement layer 8 and anti-collision guardrails 9 on two sides above the bridge deck, and finally checking and accepting the vehicle.
The application of the hollow slab connecting device of the present embodiment is as follows: after uneven settlement and load impact occur between the horizontal prefabricated hollow plates, vertical dislocation occurs between the hollow plates. The pre-buried perforation steel sheet 2 in hollow core slab both sides combines closely with between perforation shear reinforcement 4 and the post-poured wet joint seam concrete 6, can provide stronger anti shearing bearing capacity, guarantees not to take place relative dislocation between the hollow core slab, has good overall stability. Compare simultaneously with traditional hinge joint connection's conventional hollow slab, the prefabricated hollow slab of this embodiment adopts the pre-buried perforation steel sheet 2 in both sides, perforation shear reinforcement 4 and the joint structure form of post-cast wet joint concrete 6, and the stress mode of bearing the shear force through pre-buried perforation steel sheet 2 and perforation shear reinforcement 4 is more reliable, can be fine solve the weak connected mode of conventional hollow slab hinge joint, has effectively avoided because the bearing capacity that the hinge joint disease leads to descends the scheduling problem. And this embodiment hollow slab connecting device has good wholeness to the construction is swift convenient, and the atress mode is more reasonable, makes the seam life extension of hollow slab, has improved the waterproof performance of seam, can satisfy the operation requirement of long-term in service of hollow slab bridge.
In conclusion, the device is convenient for site construction, the bridge joint has strong connectivity, and the stress mode adopts a more reliable hollow slab connecting device with the pre-embedded perforated steel plates and the perforated shear steel bars and a construction method thereof. Meanwhile, the hollow slab connection form has the advantages of simple structure, convenience in construction and more reliable stress mode, and can effectively avoid diseases generated at the joint of the hollow slabs. And the device still has good wholeness for the seam of hollow slab long service life has improved the waterproof performance of seam, can satisfy the operation requirement of long-term using of hollow slab bridge.
The above is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereby, and therefore, the present invention is not limited by the scope of the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110012180.5A CN112626998A (en) | 2021-01-06 | 2021-01-06 | Bridge with bridge hollow slab connecting device and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110012180.5A CN112626998A (en) | 2021-01-06 | 2021-01-06 | Bridge with bridge hollow slab connecting device and construction method thereof |
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| CN112626998A true CN112626998A (en) | 2021-04-09 |
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| CN202110012180.5A Pending CN112626998A (en) | 2021-01-06 | 2021-01-06 | Bridge with bridge hollow slab connecting device and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145530A (en) * | 2023-03-07 | 2023-05-23 | 中国十九冶集团有限公司 | Cover beam structure and construction method for prefabricated viaduct |
| CN116289501A (en) * | 2023-01-16 | 2023-06-23 | 苏交科集团检测认证有限公司 | Hollow slab beam with embedded bolt connector and construction method thereof |
| CN116927083A (en) * | 2023-06-21 | 2023-10-24 | 中冶南方城市建设工程技术有限公司 | Assembled hollow slab bridge and construction method thereof |
| CN117107631A (en) * | 2023-08-21 | 2023-11-24 | 中建协和建设有限公司 | A kind of reinforcement device and reinforcement construction method of prestressed hollow slab bridge |
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| CN106012806A (en) * | 2016-06-17 | 2016-10-12 | 中建三局集团有限公司 | Hollow slab hinge joint shear connection structure and construction process |
| CN109235251A (en) * | 2017-07-11 | 2019-01-18 | 广东工业大学 | A kind of hollow sheet funnel hinge crack structure and its construction method |
| CN109403215A (en) * | 2018-11-21 | 2019-03-01 | 三峡大学 | It is a kind of to lay the concrete hinge seam construction and its construction method for intersecting shear reinforcement |
| CN208685438U (en) * | 2018-08-03 | 2019-04-02 | 重庆大学 | A kind of wet seam type of attachment of sectional type floorings |
| CN211312247U (en) * | 2019-09-29 | 2020-08-21 | 辽宁省交通规划设计院有限责任公司 | Prestressed steel strand reinforcing device additionally arranged in hollow plate hinge joint space |
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2021
- 2021-01-06 CN CN202110012180.5A patent/CN112626998A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012806A (en) * | 2016-06-17 | 2016-10-12 | 中建三局集团有限公司 | Hollow slab hinge joint shear connection structure and construction process |
| CN109235251A (en) * | 2017-07-11 | 2019-01-18 | 广东工业大学 | A kind of hollow sheet funnel hinge crack structure and its construction method |
| CN208685438U (en) * | 2018-08-03 | 2019-04-02 | 重庆大学 | A kind of wet seam type of attachment of sectional type floorings |
| CN109403215A (en) * | 2018-11-21 | 2019-03-01 | 三峡大学 | It is a kind of to lay the concrete hinge seam construction and its construction method for intersecting shear reinforcement |
| CN211312247U (en) * | 2019-09-29 | 2020-08-21 | 辽宁省交通规划设计院有限责任公司 | Prestressed steel strand reinforcing device additionally arranged in hollow plate hinge joint space |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289501A (en) * | 2023-01-16 | 2023-06-23 | 苏交科集团检测认证有限公司 | Hollow slab beam with embedded bolt connector and construction method thereof |
| CN116145530A (en) * | 2023-03-07 | 2023-05-23 | 中国十九冶集团有限公司 | Cover beam structure and construction method for prefabricated viaduct |
| CN116927083A (en) * | 2023-06-21 | 2023-10-24 | 中冶南方城市建设工程技术有限公司 | Assembled hollow slab bridge and construction method thereof |
| CN116927083B (en) * | 2023-06-21 | 2025-08-26 | 中冶南方城市建设工程技术有限公司 | Assembled hollow slab bridge and construction method thereof |
| CN117107631A (en) * | 2023-08-21 | 2023-11-24 | 中建协和建设有限公司 | A kind of reinforcement device and reinforcement construction method of prestressed hollow slab bridge |
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Application publication date: 20210409 |