CN212128810U - UHPC corrugated steel web narrow steel box type composite beam - Google Patents
UHPC corrugated steel web narrow steel box type composite beam Download PDFInfo
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- CN212128810U CN212128810U CN201921961508.2U CN201921961508U CN212128810U CN 212128810 U CN212128810 U CN 212128810U CN 201921961508 U CN201921961508 U CN 201921961508U CN 212128810 U CN212128810 U CN 212128810U
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Abstract
The utility model relates to a UHPC ripples web narrow steel box type composite beam, including vertical parallel arrangement's ripples web narrow steel box girder, ripples web narrow steel box girder top surface is provided with the shear force nail and lays UHPC decking, is provided with horizontal even tie beam between the adjacent ripples web narrow steel box girder. The utility model provides a novel reinforced concrete composite bridge, which firstly effectively reduces a large number of longitudinal and transverse stiffening ribs arranged on the traditional section by optimizing the section size of the traditional steel box composite beam, and simplifies the structure detail structure; secondly, the corrugated steel web is adopted to replace the traditional flat steel web, so that the shear strength and the stability of the web are greatly improved; meanwhile, the problem that a negative bending moment area of a traditional concrete bridge deck is prone to cracking is effectively solved by adopting the UHPC bridge deck, the structural durability is enhanced, and the investment of later-stage maintenance is reduced.
Description
Technical Field
The utility model relates to a bridge engineering technical field, concretely relates to UHPC ripples steel web narrow width steel box combination beam.
Background
The steel-concrete composite beam is a bearing member jointly stressed by combining a steel beam and a concrete bridge deck, the structural form fully utilizes the compression resistance of a concrete material and the tensile resistance of steel, and is one of mainstream bridge types in domestic and foreign highways and municipal bridge markets.
In the conventional bridge design of the steel-concrete composite structure, a large number of stiffening ribs are generally arranged in the structural design for optimizing the material consumption, the structural form is complex, and the field assembly difficulty and workload are increased. However, in recent years, the labor cost in China is increased, the material cost proportion in the total cost is reduced, the manufacturing and installation cost proportion is increased, and finally the conventional design economy is reduced. Therefore, the design of the bridge structure of the steel-concrete composite structure needs to be changed to convenience.
Disclosure of Invention
The utility model aims at providing a UHPC ripples steel web narrow width steel box combination beam can optimize structural mechanics performance, simplifies steel box roof beam detail structure, reduces the site operation degree of difficulty and reduces the later stage and dimension the maintenance cost.
The utility model discloses the technical scheme who adopts does:
the utility model provides a UHPC corrugated steel web narrow width steel box type combination beam which characterized in that:
the corrugated web narrow steel box girder comprises corrugated web narrow steel box girders which are longitudinally arranged in parallel, shear nails are arranged on the top surfaces of the corrugated web narrow steel box girders, a UHPC bridge deck is paved on the shear nails, and transverse connecting girders are arranged between the adjacent corrugated web narrow steel box girders.
The narrow steel box girder with the corrugated web comprises a top flange steel plate of the narrow steel box girder at the top and a bottom flange steel plate of the narrow steel box girder at the bottom, and corrugated steel webs are arranged on two sides between the top flange steel plate and the bottom flange steel plate to form a box-shaped structure.
A plurality of vertical in-box transverse partition plates are longitudinally arranged in the narrow steel box girder of the corrugated web plate, and an opening is formed in the center of each in-box transverse partition plate.
The shear nails of the narrow steel box girder top surface of the corrugated web are arranged on the surface of the narrow steel box girder top flange steel plate, the corresponding UHPC bridge deck plate is provided with holes, and the assembly is realized by pouring after laying.
The UHPC bridge deck is a prefabricated part and is longitudinally and sequentially laid above the corrugated web narrow steel box girder, and reinforcing steel bars are reserved at splicing seams and wet joints are cast in situ to realize splicing.
The transverse connecting beams are arranged in parallel along the longitudinal bridge direction, each group comprises a central node plate and a connecting rod fixed on the node plate, one end of each connecting rod is fixed on the node plate, and the other end of each connecting rod is fixed on the adjacent corrugated steel web plate.
The transverse distance between the narrow steel box girders of the corrugated web is 7-10 m.
The applicable span of the composite beam is 50-100 m.
The distance between the single beam webs of the narrow steel box girder with the corrugated webs is 1.2-1.5 m.
The utility model has the advantages of it is following:
the utility model provides a novel reinforced concrete composite bridge, which firstly effectively reduces a large number of longitudinal and transverse stiffening ribs arranged on the traditional section by optimizing the section size of the traditional steel box composite beam, and simplifies the structure detail structure; secondly, the corrugated steel web is adopted to replace the traditional flat steel web, so that the shear strength and the stability of the web are greatly improved; meanwhile, the problem that a negative bending moment area of a traditional concrete bridge deck is prone to cracking is effectively solved by adopting the UHPC bridge deck, the structural durability is enhanced, and the investment of later-stage maintenance is reduced.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is an exploded view of a narrow steel box girder with a corrugated web.
In the figure: 1. A UHPC bridge deck; 2. the corrugated web plate narrow steel box girder; 3. a transverse tie beam; 4. a narrow steel box girder top flange steel plate; 5. a narrow steel box girder bottom flange steel plate; 6. a corrugated steel web; 7. shear nails; 8. the transverse clapboard in the box.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to a UHPC ripples web narrow width of steel box combination beam is applicable to the construction of big-and-middle span bridge among municipal administration, the highway, including vertical parallel arrangement's ripples web narrow width of steel box girder 2, 2 top surfaces of ripples web narrow width of steel box girder are provided with shear force nail 7 and lay UHPC decking 1, are provided with horizontal tie beam 3 between the adjacent ripples web narrow width of steel box girder 2, and horizontal tie beam 3 is along longitudinal bridge to parallel arrangement.
The narrow steel box girder 2 with the corrugated web plates comprises a top flange steel plate 4 with the narrow steel box girder at the top and a bottom flange steel plate 5 with the narrow steel box girder at the bottom, and corrugated steel web plates 6 are arranged on two sides between the top flange steel plate and the bottom flange steel plate to form a box-shaped structure. A plurality of vertical in-box transverse partition plates 8 are longitudinally arranged in the narrow steel box girder 2 of the corrugated web plate, and the center of each in-box transverse partition plate 8 is provided with a hole. Shear nails 7 on the top surface of the narrow steel box girder 2 of the corrugated web are arranged on the surface of a flange steel plate 4 on the top of the narrow steel box girder, corresponding holes are formed in the UHPC bridge deck slab 1, and after the narrow steel box girder is laid, pouring is carried out to realize assembly. And every two components of the corrugated web narrow steel box girder 2 are connected in a welding mode.
The UHPC bridge deck slab 1 is a prefabricated part and is longitudinally and sequentially laid above the corrugated web narrow steel box girder 2, and reinforcing steel bars are reserved at splicing seams and wet joints are cast in situ to realize splicing.
The transverse connecting beam 3 comprises a central node plate and a connecting rod fixed on the node plate, one end of the connecting rod is fixed on the node plate, and the other end of the connecting rod is fixed on the adjacent corrugated steel web 6.
The transverse distance between the narrow steel box girders 2 of the corrugated web plates is 7-10 m. The applicable span of the composite beam is 50-100 m. The distance between the single webs of the narrow steel box girder 2 with the corrugated webs is 1.2-1.5 m.
The UHPC corrugated web narrow box type composite beam is a novel steel-concrete composite beam and consists of a corrugated web narrow steel box beam and a UHPC bridge deck. The narrow steel box girder with the corrugated web plates has the narrow box-shaped cross section, so that longitudinal and transverse stiffening ribs arranged in the top and bottom plates of the conventional steel box girder can be effectively reduced or even omitted, and the number of transverse clapboards is greatly reduced; meanwhile, the corrugated web is adopted to replace a flat steel web in the conventional steel box girder, the thickness of the web is effectively reduced by utilizing the excellent shearing resistance of the corrugated web, and the arrangement of stiffening ribs in the conventional straight web is cancelled. The bridge deck slab is made of UHPC high-performance materials, so that the problem that the bridge deck slab is easy to crack in the hogging moment region of the conventional steel-concrete combined continuous structure is effectively solved, and the stress performance and the durability of the structure are improved; simultaneously, compare traditional concrete bridge panel, optimized cast-in-place wet joint size and constructional steel bar configuration, the efficiency of construction effectively improves.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (9)
1. The utility model provides a UHPC corrugated steel web narrow width steel box type combination beam which characterized in that:
the corrugated web narrow steel box girder comprises corrugated web narrow steel box girders (2) which are longitudinally arranged in parallel, shear nails (7) are arranged on the top surfaces of the corrugated web narrow steel box girders (2) and UHPC bridge decks (1) are paved, and transverse connecting girders (3) are arranged between the adjacent corrugated web narrow steel box girders (2).
2. The UHPC corrugated steel web narrow steel box type composite beam of claim 1, which is characterized in that:
the narrow steel box girder (2) with the corrugated web plates comprises a narrow steel box girder top flange steel plate (4) at the top and a narrow steel box girder bottom flange steel plate (5) at the bottom, and corrugated steel web plates (6) are arranged on two sides between the narrow steel box girder top flange steel plate and the narrow steel box girder bottom flange steel plate to form a box-shaped structure.
3. The UHPC corrugated steel web narrow steel box type composite beam of claim 2, which is characterized in that:
a plurality of vertical in-box transverse partition plates (8) are longitudinally arranged in the narrow steel box girder (2) of the corrugated web plate, and a hole is formed in the center of each in-box transverse partition plate (8).
4. The UHPC corrugated steel web narrow steel box type composite beam of claim 3, wherein:
shear nails (7) on the top surface of the narrow steel box girder (2) of the corrugated web are arranged on the surface of a flange steel plate (4) on the top of the narrow steel box girder, corresponding holes are formed in the UHPC bridge deck (1), and the assembly is realized by pouring after laying.
5. The UHPC corrugated steel web narrow steel box type composite beam of claim 4, which is characterized in that:
the UHPC bridge deck (1) is a prefabricated part and is longitudinally and sequentially laid above the corrugated web narrow steel box girder (2), and reinforcing steel bars are reserved at splicing seams and wet joints are cast in situ to realize splicing.
6. The UHPC corrugated steel web narrow steel box type composite beam of claim 5, wherein:
the transverse connecting beams (3) are arranged in parallel along the longitudinal bridge direction, each group comprises a central node plate and a connecting rod fixed on the node plate, one end of each connecting rod is fixed on the node plate, and the other end of each connecting rod is fixed on the adjacent corrugated steel web (6).
7. The UHPC corrugated steel web narrow steel box type composite beam of claim 6, wherein:
the transverse distance between the narrow steel box girders (2) of the corrugated web plates is 7-10 m.
8. The UHPC corrugated steel web narrow steel box type composite beam of claim 7, which is characterized in that:
the applicable span of the composite beam is 50-100 m.
9. The UHPC corrugated steel web narrow steel box type composite beam of claim 8, wherein:
the distance between the single beam webs of the corrugated web narrow steel box girder (2) is 1.2-1.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961508.2U CN212128810U (en) | 2019-11-14 | 2019-11-14 | UHPC corrugated steel web narrow steel box type composite beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921961508.2U CN212128810U (en) | 2019-11-14 | 2019-11-14 | UHPC corrugated steel web narrow steel box type composite beam |
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| CN212128810U true CN212128810U (en) | 2020-12-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863140A (en) * | 2021-09-02 | 2021-12-31 | 武汉二航路桥特种工程有限责任公司 | Steel-concrete composite beam suitable for integral carrying installation and construction method thereof |
| CN113981795A (en) * | 2021-09-27 | 2022-01-28 | 中交一公局第七工程有限公司 | Steel-concrete composite beam and sliding walking type integral pushing installation process thereof |
| CN114790680A (en) * | 2022-05-11 | 2022-07-26 | 山东建筑大学 | Assembled steel box combination beam bridge |
-
2019
- 2019-11-14 CN CN201921961508.2U patent/CN212128810U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863140A (en) * | 2021-09-02 | 2021-12-31 | 武汉二航路桥特种工程有限责任公司 | Steel-concrete composite beam suitable for integral carrying installation and construction method thereof |
| CN113981795A (en) * | 2021-09-27 | 2022-01-28 | 中交一公局第七工程有限公司 | Steel-concrete composite beam and sliding walking type integral pushing installation process thereof |
| CN114790680A (en) * | 2022-05-11 | 2022-07-26 | 山东建筑大学 | Assembled steel box combination beam bridge |
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