CN203923885U - A kind of bridge box type girder that adopts sandwich - Google Patents
A kind of bridge box type girder that adopts sandwich Download PDFInfo
- Publication number
- CN203923885U CN203923885U CN201420292361.3U CN201420292361U CN203923885U CN 203923885 U CN203923885 U CN 203923885U CN 201420292361 U CN201420292361 U CN 201420292361U CN 203923885 U CN203923885 U CN 203923885U
- Authority
- CN
- China
- Prior art keywords
- sandwich
- box type
- type girder
- composite material
- constructional element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of bridge box type girder that adopts sandwich, comprise web, base plate and top board, described web, base plate and top board adopt respectively constructional element of sandwich structures or concrete slab, or described web, base plate and top board all adopt constructional element of sandwich structures; Described constructional element of sandwich structures comprises upper and lower two-layered steel plates and middle one deck composite material core, and composite material core is connected with described steel plate by structure glue, and composite material core adopts drawing and extruding section bar or sandwich structure.The utility model is by using sandwich in box type girder, form box type girder with concrete slab, make this box type girder have lightweight, intensity is large, rigidity is large, weld seam is few, abrasion resistance is good, anti-seismic performance is good, reasonable stress, be easy to the advantages such as maintenance, is applicable to bridge box type girder field.
Description
Technical field
The utility model relates to bridge box type girder technical field, refers in particular to a kind of constructional element of sandwich structures that can be used as for bridge box type girder, specifically a kind of bridge box type girder that adopts sandwich.
Background technology
Bridge box type girder mainly adopts concrete box girder or steel case beam now.Concrete box girder is heavier, construction is complicated, can not be for bridge is conducted oneself with dignity and had the Longspan Bridge of requirement; Steel case beam can solve the heavier problem of deadweight, but rigidity is inadequate, need to increase a lot of ribs and dividing plate, also can produce a lot of weld seams, cause case beam stress complicated, to having relatively high expectations of deck paving, be easy to cause mat formation layer cracking, add that rigidity own is inadequate, under wheel Fatigue Load, easily ftracture in the commissure of steel plate; Also have at present a kind of corrugated steel web combined box beam, this case beam from heavy and light, easy construction, but steel web is had relatively high expectations, easy unstability when steel web shearing rigidity is inadequate, steel web is also easy to corrosion.
Utility model content
The purpose of this utility model is the problem existing for prior art, the bridge box type girder of the employing sandwich that provide that a kind of intensity is high, rigidity is large, weld seam is few, abrasion resistance is good, be easy to maintenance, anti-seismic performance is good.
The technical solution adopted in the utility model is: a kind of bridge box type girder that adopts sandwich, comprise web, base plate and top board, described web, base plate and top board adopt respectively constructional element of sandwich structures or concrete slab, or described web, base plate and top board all adopt constructional element of sandwich structures; Described constructional element of sandwich structures comprises upper and lower two-layered steel plates and middle one deck composite material core, and composite material core is connected with described steel plate by structure glue, and composite material core adopts drawing and extruding section bar or sandwich structure.
As preferably, described drawing and extruding section bar is I shape, grooved or hollow section, and drawing and extruding section bar is separate type or several monolithic being connected to form.
As preferably, the filler of described sandwich structure is wooden or foam; For strengthening its globality, in sandwich structure, can set up rib.
As preferably, described composite material core is by fiber and resin solidification moulding, fiber is carbon fiber, glass fiber, basalt fibre, aramid fiber or hybridization fiber, and resin adopts unsaturated polyester (UP), vinylite, epoxy resin, phenolic resins and all kinds of structure glue.
Beneficial effect: the utility model is by using sandwich in box type girder, form box type girder with concrete slab, make this box type girder have lightweight, intensity is large, rigidity is large, weld seam is few, abrasion resistance is good, anti-seismic performance is good, reasonable stress, be easy to the advantages such as maintenance, is applicable to bridge box type girder field.
Accompanying drawing explanation
Fig. 1 is 1 case beam schematic diagram of the utility model embodiment;
Fig. 2 is 3 casees beam schematic diagrames of the utility model embodiment;
Fig. 3 is 5 casees beam schematic diagrames of the utility model embodiment;
Fig. 4 is the utility model embodiment 3 constructional element of sandwich structures cross-sectional views;
Fig. 5 is the utility model embodiment 4 constructional element of sandwich structures cross-sectional views;
Fig. 6 is the utility model embodiment 2 constructional element of sandwich structures cross-sectional views;
Fig. 7 is the utility model embodiment 1 constructional element of sandwich structures cross-sectional view.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Fig. 1-7:
Embodiment 1
As shown in Fig. 1 and 7, the utility model adopts the bridge box type girder of sandwich, constructional element of sandwich structures 1 is as the web of case beam, the top board of case beam and base plate adopt concrete slab 2, the thick 28cm of top board, the thick 24cm of base plate, constructional element of sandwich structures 1 comprises that upper and lower two layers of thickness is the steel plate 3 of 10mm, middle one deck composite material core 4 adopts the high Integral hollow pipe 6 of 18cm, and hollow section 6 is connected by structure glue 5 with steel plate 3.
Embodiment 2
As shown in Figure 6, the difference of the present embodiment and embodiment 1 is: described composite material core 4 adopts separate type hollow section 6.
Embodiment 3
As shown in Figures 2 and 4, the utility model adopts the bridge box type girder of sandwich, constructional element of sandwich structures 1 is as web and the base plate of case beam, the top board of case beam adopts concrete slab 2, the thick 25cm of top board, constructional element of sandwich structures 1 comprises that upper and lower two layers of thickness is the steel plate 3 of 12mm, and middle one deck composite material core 4 adopts the thick sandwich structure 7 of 16cm, and the filler 8 in sandwich structure 7 adopts foam.
Embodiment 4
As shown in Figure 5, the difference of the present embodiment and embodiment 3 is: in described sandwich structure 7, every 20cm, set up a longitudinal rib 9.
Embodiment 5
As shown in Figure 3, the difference of the present embodiment and embodiment 1 is: web, base plate and the top board of the utility model case beam all adopt constructional element of sandwich structures 1.
Above-mentioned first embodiment 1 of take is example, and bridge box type girder is as follows with the preparation flow of constructional element of sandwich structures:
A, first make composite material core 4 (in embodiment 1 for Integral hollow pipe 6).In factory, first make hollow section 6 cross-section molds, then fiber (carbon fiber, glass fiber, basalt fibre, aramid fiber or hybridization fiber) and resin (comprising: unsaturated polyester (UP), vinylite, epoxy resin, phenolic resins) are formed into hollow section 6 by extruder and Mold Making.
B, assembling constructional element of sandwich structures.The hollow section 6 of upper step being made to moulding is connected by structure glue 5 with two block plates 3.
C, on-the-spot constructional element of sandwich structures 1 and two block concrete plates 2 (case back plate and base plate) by upper step making moulding are connected to form complete case beam.
In above-mentioned preparation technology: the kind of the kind of the form of the size of the form of constructional element of sandwich structures 1 and size, concrete slab 2, the thickness of steel plate 3, composite material core 4 and size, fiber and quantity, resin etc. all can be adjusted as required flexibly.
It should be pointed out that for those skilled in the art, not departing under the prerequisite of the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.In the present embodiment not clear and definite each ingredient all available prior art realized.
Claims (3)
1. a bridge box type girder that adopts sandwich, it is characterized in that: comprise web, base plate and top board, described web, base plate and top board adopt respectively constructional element of sandwich structures or concrete slab, or described web, base plate and top board all adopt constructional element of sandwich structures; Described constructional element of sandwich structures comprises upper and lower two-layered steel plates and middle one deck composite material core, and composite material core is connected with described steel plate by structure glue, and composite material core adopts drawing and extruding section bar or sandwich structure.
2. a kind of bridge box type girder that adopts sandwich according to claim 1, is characterized in that: described drawing and extruding section bar is I shape, grooved or hollow section, and drawing and extruding section bar is separate type or several monolithic being connected to form.
3. a kind of bridge box type girder that adopts sandwich according to claim 1, is characterized in that: in described sandwich structure, set up rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292361.3U CN203923885U (en) | 2014-06-03 | 2014-06-03 | A kind of bridge box type girder that adopts sandwich |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292361.3U CN203923885U (en) | 2014-06-03 | 2014-06-03 | A kind of bridge box type girder that adopts sandwich |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203923885U true CN203923885U (en) | 2014-11-05 |
Family
ID=51819739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420292361.3U Expired - Fee Related CN203923885U (en) | 2014-06-03 | 2014-06-03 | A kind of bridge box type girder that adopts sandwich |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203923885U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032669A (en) * | 2014-06-03 | 2014-09-10 | 南京工业大学 | Bridge box type girder of interlayer structure |
| CN105178165A (en) * | 2015-10-09 | 2015-12-23 | 西藏自治区交通勘察设计研究院 | Tension face layer compound-reinforced reinforced concrete continuous rigid frame bridge and construction method thereof |
| CN113969537A (en) * | 2021-11-11 | 2022-01-25 | 中国矿业大学 | Novel box girder bridge formed by combining corrugated steel type web plates and lower flange plates |
-
2014
- 2014-06-03 CN CN201420292361.3U patent/CN203923885U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032669A (en) * | 2014-06-03 | 2014-09-10 | 南京工业大学 | Bridge box type girder of interlayer structure |
| CN105178165A (en) * | 2015-10-09 | 2015-12-23 | 西藏自治区交通勘察设计研究院 | Tension face layer compound-reinforced reinforced concrete continuous rigid frame bridge and construction method thereof |
| CN113969537A (en) * | 2021-11-11 | 2022-01-25 | 中国矿业大学 | Novel box girder bridge formed by combining corrugated steel type web plates and lower flange plates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104032667B (en) | A kind ofly adopt that composite material is core, steel plate is the sandwich of covering | |
| CN104129109B (en) | Unidirectional Fiber-reinforced Composite dot-matrix sandwich panel of a kind of integral reinforcing and preparation method thereof | |
| CN103216041B (en) | Plane grid rib for structure reinforcement, mould and manufacturing method of plane grid rib | |
| CN102561180B (en) | Bamboo bridge deck | |
| CN203923885U (en) | A kind of bridge box type girder that adopts sandwich | |
| CN108869167A (en) | Fan blade crossbeam and preparation method thereof | |
| CN101314935A (en) | Composite material bridge deck | |
| CN106245837A (en) | A kind of assembled GFRP drawing and extruding section bar core wood composite floor slab structural system | |
| CN111231442A (en) | Large-size multi-axial composite material bearing plate taking pultruded profile as sandwich and preparation method thereof | |
| CN103640267B (en) | A kind of Three-dimensional fiber composite material | |
| CN104032669A (en) | Bridge box type girder of interlayer structure | |
| CN103448338B (en) | Metal plate/fiber mixed reinforced type sandwich plate | |
| CN202766969U (en) | Steel and wood combination bridge deck pavement structure with shear keys | |
| CN103015317B (en) | Factory-made orthotropic steel plate and composite combined deck structure | |
| CN203923877U (en) | A kind of composite material that adopts is the sandwich that core, steel plate are covering | |
| CN104389266A (en) | Composite material shear key for steel-concrete combined structure | |
| CN212021859U (en) | Large-size multi-axial composite material bearing plate taking pultruded profile as sandwich | |
| CN203093159U (en) | Composite material dot-matrix structure with novel connection between rod member and panel | |
| CN105369735B (en) | A kind of corrugated arch core filled composite material combined bridge deck | |
| CN101768915B (en) | Composite material bow-shaped structural beam | |
| CN202830741U (en) | Semi-assembled type bamboo-concrete combined bridge | |
| CN203144900U (en) | Bridge deck structure integrating orthotropic steel plate and composite hollow plate | |
| CN201610516U (en) | Composite material arch structural beam | |
| CN104074114A (en) | Three-dimensional honeycomb reinforced concrete product made from composite material and preparation method of product | |
| CN203567307U (en) | Hybrid enhanced sandwich plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170603 |