CN213773017U - Roof reinforced structure of box girder - Google Patents
Roof reinforced structure of box girder Download PDFInfo
- Publication number
- CN213773017U CN213773017U CN202022678003.4U CN202022678003U CN213773017U CN 213773017 U CN213773017 U CN 213773017U CN 202022678003 U CN202022678003 U CN 202022678003U CN 213773017 U CN213773017 U CN 213773017U
- Authority
- CN
- China
- Prior art keywords
- roof
- web
- anchor slab
- anchor
- reinforced structure
- 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.)
- Active
Links
Images
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The utility model provides a roof reinforced structure of box beam, includes a plurality of roof reinforced structure, a plurality of roof reinforced structure along the vertical equidistant setting of bridge, monolithic roof reinforced structure include horizontal pull rod, bracing, roof anchor slab, web anchor slab and rivet, the top and the bottom of bracing welded fastening respectively on roof anchor slab and web anchor slab, the horizontal pull rod both ends welded fastening respectively on two web anchor slabs that correspond the setting, the roof anchor slab sets up in the internal surface middle part of roof, and the web anchor slab sets up in the internal surface middle part of web, and all through the rivet anchor between roof anchor slab and the roof and between web anchor slab and the web. When the top plate of the box beam generates vertical compressive stress under the action of load, the vertical compressive stress is transmitted to the two side webs through the two inclined struts, horizontal thrust is generated at the two side webs, and the horizontal pull rod offsets the horizontal thrust of the two side webs. The whole body forms a stable and self-balancing function and can support the top plate.
Description
Technical Field
The utility model relates to a bridge engineering field specifically is a roof reinforced structure of box girder.
Background
Box girders are girder bridges with box-shaped cross sections, which are mainly used for large-span or load-bearing structures. Its advantages are high torsional rigidity, high integrity and stability, saving material, and high application to large continuous bridge.
Due to the influence of various reasons such as structural design, construction process, building materials, later operation and the like, the top plate of the box beam has cracks, downwarping and other diseases.
According to the existing reinforcement technology, such as CN201610227961.5, roof thickening beams arranged at intervals are additionally arranged on the bottom surface of a girder roof, prestressed steel bars are arranged in a girder web and the roof thickening beams, the span of the roof is reduced, and the problems of deflection deformation and cracking of the roof can be effectively solved. However, the method can increase the dead weight of the box beam, and has complex construction design and higher construction cost.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a roof reinforced structure of box beam, includes a plurality of roof reinforced structure, a plurality of roof reinforced structure along the vertical equidistant setting of bridge, monolithic roof reinforced structure include horizontal pull rod, bracing, roof anchor slab, web anchor slab and rivet, the top and the bottom of bracing welded fastening respectively on roof anchor slab and web anchor slab, the horizontal pull rod both ends welded fastening respectively on two web anchor slabs that correspond the setting, the roof anchor slab sets up in the internal surface middle part of roof, and the web anchor slab sets up in the internal surface middle part of web, and all through the rivet anchor between roof anchor slab and the roof and between web anchor slab and the web.
The horizontal included angle of the inclined strut is 30-60 degrees.
The inclined strut and the horizontal pull rod are both Q235 angle steel.
And the top plate anchor plate and the web plate anchor plate are both steel plates with the thickness of 16-30 mm.
And the distance between the adjacent top plate reinforcing structures is 3-6 m.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses roof reinforced structure's of box beam mechanics principle does: when the top plate of the box beam generates vertical compressive stress under the action of load, the vertical compressive stress is transmitted to the two side webs through the two inclined struts, horizontal thrust is generated at the two side webs, and the horizontal pull rod offsets the horizontal thrust of the two side webs. The whole body forms a stable and self-balancing function and can support the top plate.
2. The top plate reinforcing structure of the box beam serves as a supporting structure of the top plate, so that the span of the top plate is reduced, and the problems of downwarping and cracking of the top plate can be effectively solved.
3. Compared with the prior art that the prestressed tendons are arranged at the thickened beam of the top plate, the box-shaped beam top plate reinforcing structure is simple in structural design, convenient to reinforce and construct, economical and practical.
Drawings
FIG. 1 is a schematic view of a top plate reinforcing structure of a box beam according to the present invention;
1-web plate, 2-top plate, 3-web plate anchor plate, 4-top plate anchor plate, 5-diagonal brace, 6-horizontal pull rod and 7-rivet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the roof reinforcing structure of the box beam comprises a plurality of roof reinforcing structures, the roof reinforcing structures are arranged at equal intervals along the longitudinal direction of a bridge, the interval between every two adjacent roof reinforcing structures is 5m, the single roof reinforcing structure comprises a horizontal pull rod 6, two inclined struts, a roof anchor plate 4, a web anchor plate 3 and rivets 7, the tops and the bottoms of the inclined struts are respectively welded and fixed on the roof anchor plate 4 and the web anchor plate 3, the horizontal included angle of the inclined struts is 45 degrees, two ends of the horizontal pull rod 6 are respectively welded and fixed on the two correspondingly arranged web anchor plates 3, the roof anchor plate 4 is arranged in the middle of the inner surface of a roof 2, the web anchor plate 3 is arranged in the middle of the inner surface of a web 1, the roof anchor plate 4 and the roof 2 and the web anchor plate 3 and the web anchor plate 1 are both anchored through the rivets 7, the roof anchor plate 4 and the web anchor plate 3 are Q235 steel plates with the thickness of 25mm, the inclined strut and the horizontal pull rod 6 are both Q235 angle steel, and the size of the angle steel is L200 multiplied by 24 mm.
A construction method of a roof plate reinforcing structure of a box girder comprises the following steps:
step 1: respectively anchoring a Q235 steel plate with the thickness of 25mm in the middle of the inner surface of the top plate 2 and the middle of the inner surface of the web plate 1 of the box beam 1 by using rivets 7 to form a top plate anchor plate 4 and a web plate anchor plate 3;
step 2: mounting diagonal brace 5 and horizontal pull rod 6
Welding the top and the bottom of the inclined strut with a top plate anchor plate 4 and a web plate anchor plate 3 respectively, and ensuring that the horizontal included angle of the inclined strut 5 is 45 degrees; and two ends of the horizontal pull rod 6 are respectively welded with the web plate anchor plates 3 at two sides to form a reinforced structure of the top plate 2 of the box beam 1.
Claims (5)
1. The utility model provides a roof reinforced structure of box beam, its characterized in that, includes a plurality of roof reinforced structure, a plurality of roof reinforced structure along the vertical equidistant setting of bridge, monolithic roof reinforced structure include horizontal pull rod, bracing, roof anchor slab, web anchor slab and rivet, the top and the bottom of bracing are welded fastening respectively on roof anchor slab and web anchor slab, horizontal pull rod both ends welded fastening respectively on two web anchor slabs that correspond the setting, the roof anchor slab sets up in the internal surface middle part of roof, and the web anchor slab sets up in the internal surface middle part of web, and all through the rivet anchor between roof anchor slab and the roof and between web anchor slab and the web.
2. A roof reinforcing structure for a box beam in accordance with claim 1, wherein: the horizontal included angle of the inclined strut is 30-60 degrees.
3. A roof reinforcing structure for a box beam in accordance with claim 1, wherein: the inclined strut and the horizontal pull rod are both Q235 angle steel.
4. A roof reinforcing structure for a box beam in accordance with claim 1, wherein: and the top plate anchor plate and the web plate anchor plate are both steel plates with the thickness of 16-30 mm.
5. A roof reinforcing structure for a box beam in accordance with claim 1, wherein: and the distance between the adjacent top plate reinforcing structures is 3-6 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022678003.4U CN213773017U (en) | 2020-11-18 | 2020-11-18 | Roof reinforced structure of box girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022678003.4U CN213773017U (en) | 2020-11-18 | 2020-11-18 | Roof reinforced structure of box girder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213773017U true CN213773017U (en) | 2021-07-23 |
Family
ID=76917689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022678003.4U Active CN213773017U (en) | 2020-11-18 | 2020-11-18 | Roof reinforced structure of box girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213773017U (en) |
-
2020
- 2020-11-18 CN CN202022678003.4U patent/CN213773017U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102220739B (en) | Corrugated steel web prestressed concrete continuous box girder and construction method thereof | |
| CN201972237U (en) | Section prefabricated rectangular steel pipe concrete truss | |
| CN202131559U (en) | Corrugated steel web plate prestressed concrete continuous box girder | |
| CN110067186B (en) | Steel pipe stiffening web steel-concrete combined box girder | |
| CN218933561U (en) | Structure for preventing continuous overhanging layer of building from displacement | |
| CN109930469B (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN115928883B (en) | Structure structure for preventing displacement of continuous overhanging layer of building and construction method | |
| CN213773017U (en) | Roof reinforced structure of box girder | |
| CN202990244U (en) | Dual-T shaped composite beam with prestress concrete filled steel tube core bar | |
| CN212426678U (en) | Assembled light steel sheet composite beam bridge structure | |
| CN212335738U (en) | Double-combination continuous truss girder of combined steel web member for highway and railway construction | |
| CN114182620A (en) | Partial cable-stayed bridge structure system of large cantilever core steel box and construction method | |
| CN211646957U (en) | Assembled house ground reinforcing plate structure | |
| CN211897803U (en) | Continuous new structure of composite beam structure adopting UHPC beam-steel end plate with studs | |
| CN211171560U (en) | Steel diagonal brace combined PC beam | |
| CN210596966U (en) | Large-span steel-concrete composite bridge structure | |
| CN112411353A (en) | Prefabricated assembled steel-concrete composite beam bolted in longitudinal segmentation mode and construction method | |
| CN216006575U (en) | External prestress steering device suitable for box girder bottom plate | |
| CN112281656A (en) | Combined multi-span bridge plate connecting structure | |
| CN218989851U (en) | Fully assembled steel-concrete plate truss combined bridge | |
| CN112095798B (en) | Super high-rise double-layer super large cantilever steel structure | |
| CN217579811U (en) | Bridge three-column pier anti-seismic reinforcing structure with dual energy consumption measures | |
| CN215887894U (en) | Large-span steel truss web reinforced concrete composite beam bridge | |
| CN220080274U (en) | Cantilever truss structure | |
| CN221441315U (en) | Novel bridge staple bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |