CN112982189A - Steel plate girder wide hollow slab girder structure - Google Patents
Steel plate girder wide hollow slab girder structure Download PDFInfo
- Publication number
- CN112982189A CN112982189A CN202110208298.5A CN202110208298A CN112982189A CN 112982189 A CN112982189 A CN 112982189A CN 202110208298 A CN202110208298 A CN 202110208298A CN 112982189 A CN112982189 A CN 112982189A
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- steel plate
- plate beam
- hollow
- polyvinyl alcohol
- hollow plate
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling 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
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
一种钢板梁拼宽空心板梁结构，涉及桥梁工程领域。该钢板梁拼宽空心板梁结构包括空心板梁、拼宽钢板梁及两端分别通过连接板与空心板梁和拼宽钢板梁连接的波形钢板，波形钢板的顶部铺设有分别与空心板梁和拼宽钢板梁连接的聚乙烯醇纤维增强水泥基材料复合层，空心板梁和拼宽钢板梁上分别铺设有与聚乙烯醇纤维增强水泥基材料复合层两端连接的桥面现浇层，桥面现浇层和聚乙烯醇纤维增强水泥基材料复合层上铺设有桥面沥青铺装层。本申请提供的钢板梁拼宽空心板梁结构能解决旧空心板桥的拼宽结构接缝处因自重较重、混凝土收缩徐变引起的沉降差，同时具有施工难度低、减少钢筋使用量增加经济效益的优点。
The utility model discloses a wide hollow plate beam structure of steel plate beams, which relates to the field of bridge engineering. The steel plate beam split-width hollow plate beam structure includes a hollow plate beam, a split-width steel plate beam, and corrugated steel plates connected at both ends to the hollow plate beam and the split-width steel plate beam through connecting plates, respectively. The top of the corrugated steel plate is laid with the hollow plate beams The polyvinyl alcohol fiber reinforced cement-based material composite layer connected with the split-width steel plate beam, and the bridge deck cast-in-place layer connected with the two ends of the polyvinyl alcohol fiber-reinforced cement-based material composite layer is respectively laid on the hollow plate beam and the split-width steel plate beam , The bridge deck cast-in-place layer and the polyvinyl alcohol fiber reinforced cement-based material composite layer are laid with a bridge deck asphalt pavement layer. The steel plate beam splicing hollow slab girder structure provided by the application can solve the settlement difference caused by the heavy dead weight and the shrinkage and creep of the concrete at the joints of the splicing structure of the old hollow slab bridge. Economic benefits.
Description
Technical Field
The application relates to the field of bridge engineering, in particular to a steel plate girder widening hollow plate girder structure.
Background
With the rapid development of national economy, the road transportation business of China is also rapidly developed, the traffic volume is explosively increased, the traffic conditions of the existing bridges cannot meet the requirements of future traffic development, and the reconstruction and expansion are urgently needed.
The traditional bridge widening mode is that hollow plates, small box girders, T girders and the like which have the same structure as the original structure are adopted, and the widening scheme which has the same structure has the advantages that the new structure and the old structure are made of the same material, the rigidity is consistent, and the cooperative deformation after widening is facilitated. However, the concrete prefabricated part has heavy weight, high requirements on transportation and installation, and great influence on under-bridge traffic during a long construction period; the old bridge is basically stable in sedimentation, and the heavy dead weight of the new bridge easily causes the sedimentation difference between the new bridge and the old bridge, so that the connecting structure at the bridge joint generates additional internal force, the pavement cracks and the service life is influenced; the shrinkage and creep difference of the concrete structures of the new bridge and the old bridge further causes the additional internal force of the connecting structure at the joint, so that the stress of the connecting structure is worse. In addition, the splicing width of the old bridge of the hollow slab generally adopts a rigid connection mode, and the method has the advantages that the rigidity of the joint is high, the traveling is comfortable, and the defects that the steel bars are required to be embedded into the structure of the old hollow slab, the construction process is complex and the difficulty is high; meanwhile, the joint connecting structure caused by the poor settlement of the new bridge and the old bridge is continuously subjected to bending and pulling forces, and a large amount of steel bars are usually required to be arranged on the joint connecting structure for bending resistance and tensile resistance. However, the effect is not satisfactory from the viewpoint of actual engineering use.
Disclosure of Invention
An object of this application is to provide a wide hollow slab beam structure is pieced together to steel sheet roof beam, and it can solve the wide structure seam crossing of piecing together of old hollow slab bridge and because of the dead weight is heavier, the concrete shrinkage creeps the settlement difference that arouses, has the construction degree of difficulty simultaneously and hangs down, reduces the advantage that reinforcing bar use amount increases economic benefits.
The embodiment of the application is realized as follows:
the embodiment of the application provides a wide hollow slab beam structure is pieced together to steel sheet roof beam, it includes hollow slab beam, piece together wide steel sheet roof beam and both ends respectively through connecting plate and hollow slab beam and the wave form steel sheet of piecing together wide steel sheet roof beam and being connected, polyvinyl alcohol fiber reinforcement cement-based material composite bed of being connected with hollow slab beam and piece together wide steel sheet roof beam respectively has been laid at the top of wave form steel sheet, lay the cast-in-place layer of bridge floor of being connected with polyvinyl alcohol fiber reinforcement cement-based material composite bed both ends respectively on hollow slab beam and the piece together wide steel sheet roof beam, the cast-in-place layer of bridge floor and the pave on the polyvinyl alcohol fiber reinforcement cement-based material.
In some alternative embodiments, the bridge deck cast-in-place layer and the polyvinyl alcohol fiber reinforced cement-based material composite layer are connected by a plurality of transverse connecting steel bars.
In some alternative embodiments, the corrugated steel plate and the hollow plate girder are connected by a plurality of anchor connectors.
In some alternative embodiments, the corrugated steel plate and the split-width steel plate beam are welded.
In some alternative embodiments, the corrugated steel sheet has attached thereto a plurality of shear pins extending into the polyvinyl alcohol fiber reinforced cement-based material composite layer.
The beneficial effect of this application is: the steel plate girder wide hollow plate girder structure that pieces together that this embodiment provided includes hollow plate girder, piece together wide steel plate girder and the wave form steel sheet that both ends are connected through connecting plate and hollow plate girder and piece together wide steel plate girder respectively, the polyvinyl alcohol fiber reinforced cement base material composite bed that is connected with hollow plate girder and piece together wide steel plate girder respectively has been laid at the top of wave form steel sheet, lay the bridge floor cast-in-place layer of being connected with polyvinyl alcohol fiber reinforced cement base material composite bed both ends on hollow plate girder and the piece together wide steel plate girder respectively, lay bridge floor asphalt pavement layer on bridge floor cast-in-place layer and the polyvinyl alcohol fiber reinforced cement base material composite bed. The steel plate girder wide hollow slab girder structure provided by the embodiment can solve the problem that the settlement difference caused by heavier dead weight and creep of concrete at the joint of the wide structure of the old hollow slab bridge, and has the advantages of low construction difficulty, reduction of the using amount of reinforcing steel bars and increase of economic benefit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic cross-sectional structural view of a steel plate girder widening hollow plate girder structure provided in an embodiment of the present application;
fig. 2 is a partial enlarged sectional structure view of a steel plate girder widening hollow plate girder structure provided in an embodiment of the present application.
In the figure: 100. a hollow slab beam; 110. splicing wide steel plate beams; 120. a corrugated steel plate; 130. a connecting plate; 140. shear nails; 150. a polyvinyl alcohol fiber reinforced cement-based material composite layer; 160. a bridge deck cast-in-place layer; 170. a bridge deck asphalt pavement layer; 180. transversely connecting reinforcing steel bars; 190. an anchor bolt connecting piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The characteristics and properties of the steel plate girder widening hollow plate girder structure of the present application will be described in further detail with reference to examples.
As shown in fig. 1 and 2, the embodiment of the present application provides a wide hollow slab girder structure spliced by steel slabs, the corrugated steel plate comprises a hollow plate girder 100, a split wide steel plate girder 110 and a corrugated steel plate 120, wherein two ends of the corrugated steel plate 120 are respectively connected with the hollow plate girder 100 and the split wide steel plate girder 110 through a connecting plate 130, the connecting plate 130 at one end of the corrugated steel plate 120 is connected with the hollow plate girder 100 through five anchor bolt connecting pieces 190, the connecting plate 130 at the other end of the corrugated steel plate 120 is welded with the split wide steel plate girder 110, a polyvinyl alcohol fiber reinforced cement-based material composite layer 150 is laid on the top of the corrugated steel plate 120 and is respectively connected with the hollow plate girder 100 and the split wide steel plate girder 110, a bridge deck cast-in-place base material layer 160 connected with two ends of the polyvinyl alcohol fiber reinforced cement-based material composite layer 150 is laid on the hollow plate girder 100 and the split wide steel plate girder 110, and a bridge deck asphalt pavement layer; the bridge deck cast-in-place layer 160 and the polyvinyl alcohol fiber reinforced cement-based material composite layer 150 are connected through ten transverse connecting steel bars 180, and the corrugated steel plate 120 is connected with thirty-five shear nails 140 extending into the polyvinyl alcohol fiber reinforced cement-based material composite layer 150.
When the steel plate girder widening hollow plate girder structure provided by this embodiment is constructed, firstly, a widening steel plate girder 110 parallel to the hollow plate girder 100 of the hollow plate girder is constructed on one side of the old hollow plate girder, and the top surfaces of the hollow plate girder 100 and the widening steel plate girder 110 are made to be flush, then the side guard rail at the edge of the hollow plate girder 100, the bridge deck cast-in-situ layer and the bridge deck asphalt pavement at the joint between the hollow plate girder 100 and the widening steel plate girder 110 are broken, then the corrugated steel plate 120 is hoisted to the space between the hollow plate girder 100 and the widening steel plate girder 110, the shear nails 140 connected with the corrugated steel plate 120 are arranged upward, the connecting plate 130 connected with one end of the corrugated steel plate 120 is welded and fixed with the widening steel plate girder 110, the connecting plate 130 connected with the other end of the corrugated steel plate 120 is connected with the hollow plate girder 100 through five anchor bolts connecting pieces 190, then ten transverse connecting steel bars 180 are respectively and fixedly placed, then pouring above the corrugated steel plate 120 to obtain a polyvinyl alcohol fiber reinforced cement-based material composite layer 150, so that the bottom of the polyvinyl alcohol fiber reinforced cement-based material composite layer 150 is respectively connected with the top surfaces of the corrugated steel plate 120, the hollow plate girder 100 and the split wide steel plate girder 110, and one ends of the shear nails 140 and the twenty transverse connecting steel bars 180 are inserted into the polyvinyl alcohol fiber reinforced cement-based material composite layer 150, and then respectively pouring on the hollow plate girder 100 and the split wide steel plate girder 110 to obtain a bridge deck cast-in-place layer 160 connected with two ends of the polyvinyl alcohol fiber reinforced cement-based material composite layer 150, respectively inserting the other ends of the twenty transverse connecting steel bars 180 into the bridge deck cast-in-place layer 160 on the hollow plate girder 100 and the split wide steel plate girder 110, and finally paving a bridge deck asphalt pavement layer 170 on the surfaces of the bridge deck cast-in-place layer 160 and the polyvinyl alcohol fiber reinforced cement-based material composite layer 150 to complete the construction of the steel plate girder split wide hollow plate girder structure.
The steel plate girder widening hollow plate girder structure provided by the embodiment has the advantages of low girder height and light dead weight by using the widening steel plate girder 110 to assemble the hollow plate girder 100, can effectively reduce the settlement difference of a new bridge and an old bridge caused by the dead weight of a widened new bridge, and reduces the generation of additional internal force of a connecting structure at the joint of the bridge; meanwhile, the spliced wide steel plate beam 110 with the steel structure is used as a spliced wide structure bridge, so that shrinkage and creep of concrete do not exist, and the additional internal force generated by a connecting structure at the joint of the bridge is further reduced; the corrugated steel plates 120 arranged at the joint structure can play a role of a template, and no additional template is required to be arranged, so that the construction process is optimized; adopt neotype polyvinyl alcohol fiber reinforced cement base material composite bed 150(PVA-ECC material layer) to have excellent tensile deformation performance, the poor settlement of new and old structure of adaptation that can be fine, "eat" and fall inside additional stress and do not produce the crack to make polyvinyl alcohol fiber reinforced cement base material composite bed 150 and corrugated steel plate 120 cooperative operation cooperation, can be when guaranteeing structural strength and stability can effectual reduction or replace the tensile reinforcing bar of concatenation seam bottom, the operation cost is reduced, good economic benefits has.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110208298.5A CN112982189A (en) | 2021-02-24 | 2021-02-24 | Steel plate girder wide hollow slab girder structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110208298.5A CN112982189A (en) | 2021-02-24 | 2021-02-24 | Steel plate girder wide hollow slab girder structure |
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| CN112982189A true CN112982189A (en) | 2021-06-18 |
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| CN202110208298.5A Pending CN112982189A (en) | 2021-02-24 | 2021-02-24 | Steel plate girder wide hollow slab girder structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585045A (en) * | 2021-08-24 | 2021-11-02 | 南京工业大学 | Combined formwork-free wet joint connecting structure for new and old spliced wide bridge |
| CN115288045A (en) * | 2022-08-26 | 2022-11-04 | 湖南省交通规划勘察设计院有限公司 | Flexible wide splicing bridge based on cantilever flange plates |
| CN115821801A (en) * | 2022-11-30 | 2023-03-21 | 广州市市政工程设计研究总院有限公司 | A construction method for widening and splicing reconstruction of long-span concrete bridges |
| CN116104024A (en) * | 2023-02-24 | 2023-05-12 | 天元建设集团有限公司 | A bridge assembly type new and old widening method |
| CN118756605A (en) * | 2024-07-03 | 2024-10-11 | 福州大学 | A structure and construction method of widening new and old bridges by thin steel plates |
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| CN206581145U (en) * | 2017-01-06 | 2017-10-24 | 东南大学 | A kind of concrete-bridge end deck installation structure for exempting from expansion joint |
| CN110258289A (en) * | 2019-05-24 | 2019-09-20 | 东南大学 | Prestressed concrete continuous box girder bridge laterally spells wide structure |
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2021
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| CN206581145U (en) * | 2017-01-06 | 2017-10-24 | 东南大学 | A kind of concrete-bridge end deck installation structure for exempting from expansion joint |
| CN110258289A (en) * | 2019-05-24 | 2019-09-20 | 东南大学 | Prestressed concrete continuous box girder bridge laterally spells wide structure |
| CN110965484A (en) * | 2019-12-17 | 2020-04-07 | 中交路桥建设有限公司 | New and old bridge widening reinforcing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585045A (en) * | 2021-08-24 | 2021-11-02 | 南京工业大学 | Combined formwork-free wet joint connecting structure for new and old spliced wide bridge |
| CN115288045A (en) * | 2022-08-26 | 2022-11-04 | 湖南省交通规划勘察设计院有限公司 | Flexible wide splicing bridge based on cantilever flange plates |
| CN115821801A (en) * | 2022-11-30 | 2023-03-21 | 广州市市政工程设计研究总院有限公司 | A construction method for widening and splicing reconstruction of long-span concrete bridges |
| CN115821801B (en) * | 2022-11-30 | 2025-06-06 | 广州市市政工程设计研究总院有限公司 | A construction method for widening, splicing and reconstruction of a large-span concrete bridge |
| CN116104024A (en) * | 2023-02-24 | 2023-05-12 | 天元建设集团有限公司 | A bridge assembly type new and old widening method |
| CN118756605A (en) * | 2024-07-03 | 2024-10-11 | 福州大学 | A structure and construction method of widening new and old bridges by thin steel plates |
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Application publication date: 20210618 |