CN211772742U - Longitudinal full-section multidirectional equivalent connecting member for steel-concrete bridge - Google Patents
Longitudinal full-section multidirectional equivalent connecting member for steel-concrete bridge Download PDFInfo
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- CN211772742U CN211772742U CN202020330905.6U CN202020330905U CN211772742U CN 211772742 U CN211772742 U CN 211772742U CN 202020330905 U CN202020330905 U CN 202020330905U CN 211772742 U CN211772742 U CN 211772742U
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Abstract
The utility model provides a steel-concrete bridge roof beam longitudinal full section multidirectional equivalent connection component, belong to road and bridge engineering technical field, its structure is that the cantilever end of steel case roof beam and prestressed concrete case roof beam passes through the steel-concrete joint section and connects, 5 vertical steel bundles of prestressed concrete girder are regarded as steel-concrete joint section pressure beam anchor in the steel grid room of steel-concrete joint section simultaneously as steel-concrete joint section, the steel-concrete joint section is provided with steel case roof, a lateral part of the medial surface of steel case roof is fixed with steel-concrete joint section steel grid room, fixedly connected with shear force nail on the inner chamber wall of steel-concrete joint section steel grid room, the inner chamber of steel-concrete joint section steel grid room has arranged the PBL key along the transverse span direction, another lateral part fixedly connected with the rib of falling T of the medial surface of steel case roof; the inverted T-shaped rib is fixedly connected with the steel box girder. The utility model is suitable for a vertical full section at reinforced concrete bridge plays multidirectional equivalent connection's effect, and its longitudinal connection is reliable, and the atress is reasonable, has characteristics such as the simple and convenient swift, high efficiency of construction.
Description
Technical Field
The utility model belongs to the technical field of road bridge engineering technique and specifically relates to a steel-concrete bridge roof beam is vertical full section multidirectional equivalent connection component.
Background
Generally, the traditional steel-concrete composite beams at home and abroad are vertical steel-concrete composite members which are formed by connecting a steel box beam and a concrete bridge deck into a whole by adopting shear connectors, and the steel-concrete composite beam combining section is a transition section of two materials of steel and concrete, a sudden change section of structural rigidity, a concentrated section of local stress and a weak section of overall stress, and is the key for designing the composite beam to fail.
For a steel-concrete continuous beam structure, the size of fulcrum counterforce, the size and uniformity of fulcrum section negative bending moment and span section positive bending moment are considered, and the feasibility and convenience of a construction process are also considered, so that a steel-concrete bridge longitudinal full-section multidirectional equivalent connection system is urgently needed.
Disclosure of Invention
The technical task of the utility model is to solve the not enough of prior art, provide a vertical full section multidirectional equivalent connection component of steel-concrete bridge.
The technical scheme of the utility model is realized in the following way, the structure of the steel-concrete bridge longitudinal full-section multidirectional equivalent connecting component of the utility model comprises a steel box girder (1), a steel-concrete combining section (4), a prestressed concrete box girder (2) and a prestressed concrete main girder (5);
the steel box girder (1) is connected with the cantilever end (3) of the prestressed concrete box girder (2) through a steel-concrete combining section (4),
the prestressed concrete main beam (5) and the prestressed concrete box beam (2) are fixedly constructed and connected,
the longitudinal steel beam (6) of the prestressed concrete girder (5) is simultaneously used as a pressure beam of the steel-concrete joint section and anchored in a steel grid chamber of the steel-concrete joint section,
longitudinal steel bundles (6) are anchored in the prestressed concrete main beam (5),
the longitudinal steel beam (6) sequentially extends from the prestressed concrete main beam (5) to penetrate through the prestressed concrete box girder (2), the steel-concrete combined section (4) and the steel grid chamber (7) of the steel box girder (1), and a fixed pulling tail end (8) is arranged at the tail end of the longitudinal steel beam (6) in the steel grid chamber (7) of the steel box girder (1);
the fixed drawing end (8) of the longitudinal steel bundle (6) is fixedly connected in the steel grid chamber (7);
the steel-concrete combined section (4) is provided with a steel box top plate (9),
a steel-concrete combined section steel grid chamber (10) is fixedly arranged on one lateral part of the inner side surface of the steel box top plate (9), shear nails (12) are fixedly connected to an inner chamber wall (11) of the steel-concrete combined section steel grid chamber (10), PBL keys (13) are arranged in the inner chamber of the steel-concrete combined section steel grid chamber (10) along the transverse span direction, and steel-concrete combined section steel grid chamber concrete (14) is filled in the shear nails (12) in the inner chamber of the steel-concrete combined section steel grid chamber (10) and the peripheral space of the PBL keys (13);
the other side part of the inner side surface of the steel box top plate (9) is fixedly connected with an inverted T-shaped rib (15);
the inverted T-shaped rib (15) of the reinforced concrete combining section (4) is fixedly connected with the steel box girder (1);
PBL keys (13) of the steel grid chambers (10) of the steel-concrete combined section are connected with cantilever ends (3) of the anchoring prestressed concrete box girders (2) in a penetrating manner in the transverse direction.
Two steel-concrete combined sections (4) are fixedly connected between the steel box girder (1) and the cantilever end (3) of the prestressed concrete box girder (2); the two steel-concrete combined sections (4) are respectively positioned at the top and the bottom of a connecting joint between the steel box girder (1) and the cantilever end (3) of the prestressed concrete box girder (2); the two steel-concrete combined sections (4) are symmetrically arranged at the top and the bottom;
the top surface of the steel box girder (1), the outer side surface of the steel box top plate (9) of the steel-concrete combination section (4) at the top, the top surface of the prestressed concrete box girder (2) and the top surface of the prestressed concrete main girder (5) are flush;
the bottom surface of the steel box girder (1), the outer side surface of the steel box top plate (9) of the steel-concrete combination section (4) at the bottom, the bottom surface of the prestressed concrete box girder (2) and the bottom surface of the prestressed concrete main girder (5) are flush with each other.
The steel grid chamber (10) of the steel-concrete combined section (4) and the cantilever end (3) of the prestressed concrete box girder (2) are constructed, spliced and spliced through staggered tooth shapes.
And an inverted T-shaped rib (15) of the steel-concrete combined section (4) is fixedly welded with the steel box girder (1).
The steel box girder (1), the steel grid chamber (7) of the steel-concrete combined section, the shear nails (12), the PBL keys (13), the inverted T-shaped ribs (15) and the longitudinal steel bundles (6) are made of anti-corrosion steel.
Compared with the prior art, the utility model produced beneficial effect is:
the utility model discloses a vertical full section multidirectional equivalent connection component of steel-concrete bridge is applicable to and plays multidirectional equivalent connection's effect at the vertical full section of reinforced concrete bridge, and its longitudinal joint is reliable, and the atress is reasonable, has characteristics such as the simple and efficient, high efficiency of construction.
The utility model relates to an utilize the connection concrete structure and the steel check room structure of girder longitudinal prestress steel beam, can improve the efficiency of design and construction greatly, reduced the complete dependence to PBL key and shear force nail.
The combination of the prestressed tendons, the PBL keys and the shear nails realizes the force transmission between the concrete box girder and the steel box girder, and the steel box girder reinforcing section realizes the rigidity transition from the concrete box girder to the steel box girder.
By means of the connection of the girder steel bundles, the arrangement of the rib plates in the steel grid chamber can be adjusted according to the positions of the anchoring points of the prestressed steel bundles, so that the structure is more reasonable in stress, the design and construction are efficient, and the construction period is shortened.
To sum up the utility model discloses the vertical full section multidirectional equivalent connection system of steel-concrete bridge can realize: the stress of the structural design is more reasonable, and the structural integrity of the connecting point is better; the construction is more efficient, and the economy is improved.
The utility model discloses a steel-concrete bridge roof beam is vertical full section multidirectional equivalent connection component reasonable in design, simple structure, safe and reliable, convenient to use, easy to maintain have fine using value widely.
Drawings
FIG. 1 is a schematic view of the vertical structure of the present invention;
FIG. 2 is a schematic view of the connection structure section of the steel box girder and the reinforced concrete joint section of the present invention;
FIG. 3 is a schematic view of a prestressed concrete box girder structure section according to the present invention;
fig. 4 is a schematic structural diagram of the reinforced concrete joint section of the present invention.
The reference numerals in the drawings denote:
1. a steel box girder 2, a prestressed concrete box girder 3, a cantilever end 4, a steel-concrete combined section,
5. prestressed concrete main beam, 6, longitudinal steel beam, 7, steel lattice, 8, fixed pull end,
9. the steel box comprises a steel box top plate, 10 steel-concrete combined section steel grid chambers, 11 inner chamber walls, 12 shear nails, 13 PBL keys, 14 steel-concrete combined section steel grid chamber concrete, 15 inverted T ribs.
Detailed Description
The following detailed description will be made on a longitudinal full-section multidirectional equivalent connecting member for a steel-concrete bridge according to the present invention with reference to the accompanying drawings.
As shown in the attached drawings, the structure of the multi-directional equivalent connecting component for the longitudinal full section of the steel-concrete bridge of the utility model comprises a steel box girder 1, a steel-concrete combining section 4, a prestressed concrete box girder 2 and a prestressed concrete main girder 5;
the steel box girder 1 is connected with the cantilever end 3 of the prestressed concrete box girder 2 through a steel-concrete combining section 4,
the prestressed concrete main beam 5 and the prestressed concrete box beam 2 are fixedly constructed and connected,
the longitudinal steel beam 6 of the prestressed concrete girder 5 is simultaneously used as a pressure beam of the steel-concrete combined section and anchored in a steel grid chamber of the steel-concrete combined section,
the longitudinal steel beam 6 extends from the prestressed concrete main beam 5 to penetrate through the prestressed concrete box girder 2, the steel-concrete combined section 4 and the steel grid chamber 7 of the steel box girder 1 in sequence, and the tail end of the longitudinal steel beam 6 in the steel grid chamber 7 of the steel box girder 1 is provided with a fixed pulling end 8;
the fixed drawing end 8 of the longitudinal steel bundle 6 is fixedly connected in the steel lattice chamber 7;
the steel-concrete combining section 4 is provided with a steel box top plate 9,
a steel-concrete combined section steel grid chamber 10 is fixedly arranged on one side part of the inner side surface of the steel box top plate 9, a shear nail 12 is fixedly connected to an inner chamber wall 11 of the steel-concrete combined section steel grid chamber 10, a PBL key 13 is arranged in an inner chamber of the steel-concrete combined section steel grid chamber 10 along the transverse span direction, and steel-concrete combined section steel grid chamber concrete 14 is poured and filled in the shear nail 12 and the PBL key 13 peripheral space of the inner chamber of the steel-concrete combined section steel grid chamber 10;
the other side part of the inner side surface of the steel box top plate 9 is fixedly connected with an inverted T-shaped rib 15;
the inverted T-shaped rib 15 of the reinforced concrete combining section 4 is fixedly connected with the steel box girder 1;
the PBL keys 13 of the steel grid chambers 10 of the steel-concrete combined section are penetrated and anchored with the cantilever end 3 of the prestressed concrete box girder 2 in the transverse direction.
Two steel-concrete combined sections 4 are fixedly connected between the steel box girder 1 and the cantilever end 3 of the prestressed concrete box girder 2; the two steel-concrete combined sections 4 are respectively positioned at the top and the bottom of a connecting node between the steel box girder 1 and the cantilever end 3 of the prestressed concrete box girder 2; the two steel-concrete combined sections 4 are symmetrically arranged at the top position and the bottom position;
the top surface of the steel box girder 1, the outer side surface of the steel box top plate 9 of the steel-concrete combination section 4 at the top, the top surface of the prestressed concrete box girder 2 and the top surface of the prestressed concrete main girder 5 are all flush;
the bottom surface of the steel box girder 1, the outer side surface of the steel box top plate 9 of the steel-concrete combination section 4 at the bottom, the bottom surface of the prestressed concrete box girder 2 and the bottom surface 5 of the prestressed concrete main girder are flush with each other.
The steel grid chamber 10 of the steel-concrete combined section 4 and the cantilever end 3 of the prestressed concrete box girder 2 are constructed, spliced and inserted through staggered tooth shapes.
And the inverted T-shaped rib 15 of the steel-concrete combined section 4 is fixedly welded with the steel box girder 1.
The steel box girder 1, the steel grid chamber 7 of the steel-concrete combined section, the shear nails 12, the PBL keys 13, the inverted T-shaped ribs 15 and the longitudinal steel bundles 6 are all made of anti-corrosion steel materials. The selected materials mainly comprise common reinforcing steel bars, T-shaped steel, channel steel, square steel and the like in the building industry, and the surfaces of the materials can be subjected to anti-corrosion treatment.
The utility model discloses a PBL key 13 is used for receiving when the shearing force is too big as the object, and the key will break to protect a key of other spare parts. It acts like a fuse inside a circuit in the most common form of connector in steel and concrete composite structures at home and abroad.
The utility model realizes the force transmission between the concrete box girder and the steel box girder; the steel box girder reinforcing section realizes the rigidity transition from the concrete box girder to the steel box girder.
The utility model discloses a concrete structural style universality of steel check room is wider, and processing preparation convenient and fast, like picture one.
The utility model discloses PBL key and shear force nail can consider the convenience of construction to arrange, can refer to the drawing, also can adopt other forms to arrange.
The utility model discloses vertical prestressing force of prestressed concrete girder can be more nimble arrange in the steel check room and anchor, and concrete position can carry out local fine setting according to the inner space structure of steel check room.
The utility model discloses the connection concrete structure and the steel check room structure of girder longitudinal prestress steel beam, the utilization ratio is higher.
Claims (5)
1. A longitudinal full-section multidirectional equivalent connecting component of a steel-concrete bridge is characterized by comprising a steel box girder (1), a steel-concrete combining section (4), a prestressed concrete box girder (2) and a prestressed concrete main girder (5);
the steel box girder (1) is connected with the cantilever end (3) of the prestressed concrete box girder (2) through a steel-concrete combining section (4),
the prestressed concrete main beam (5) and the prestressed concrete box beam (2) are fixedly constructed and connected,
longitudinal steel bundles (6) are anchored in the prestressed concrete main beam (5),
the longitudinal steel beam (6) sequentially extends from the prestressed concrete main beam (5) to penetrate through the prestressed concrete box girder (2), the steel-concrete combined section (4) and the steel grid chamber (7) of the steel box girder (1), and a fixed pulling tail end (8) is arranged at the tail end of the longitudinal steel beam (6) in the steel grid chamber (7) of the steel box girder (1);
the fixed drawing end (8) of the longitudinal steel bundle (6) is fixedly connected in the steel grid chamber (7);
the steel-concrete combined section (4) is provided with a steel box top plate (9),
a steel-concrete combined section steel grid chamber (10) is fixedly arranged on one lateral part of the inner side surface of the steel box top plate (9), shear nails (12) are fixedly connected to an inner chamber wall (11) of the steel-concrete combined section steel grid chamber (10), PBL keys (13) are arranged in the inner chamber of the steel-concrete combined section steel grid chamber (10) along the transverse span direction, and steel-concrete combined section steel grid chamber concrete (14) is filled in the shear nails (12) in the inner chamber of the steel-concrete combined section steel grid chamber (10) and the peripheral space of the PBL keys (13);
the other side part of the inner side surface of the steel box top plate (9) is fixedly connected with an inverted T-shaped rib (15);
the inverted T-shaped rib (15) of the reinforced concrete combining section (4) is fixedly connected with the steel box girder (1);
PBL keys (13) of the steel grid chambers (10) of the steel-concrete combined section are connected with cantilever ends (3) of the anchoring prestressed concrete box girders (2) in a penetrating manner in the transverse direction.
2. The steel-concrete bridge girder longitudinal full-section multidirectional equivalent connecting member according to claim 1, wherein:
two steel-concrete combined sections (4) are fixedly connected between the steel box girder (1) and the cantilever end (3) of the prestressed concrete box girder (2); the two steel-concrete combined sections (4) are respectively positioned at the top and the bottom of a connecting joint between the steel box girder (1) and the cantilever end (3) of the prestressed concrete box girder (2); the two steel-concrete combined sections (4) are symmetrically arranged at the top and the bottom;
the top surface of the steel box girder (1), the outer side surface of the steel box top plate (9) of the steel-concrete combination section (4) at the top, the top surface of the prestressed concrete box girder (2) and the top surface of the prestressed concrete main girder (5) are flush;
the bottom surface of the steel box girder (1), the outer side surface of the steel box top plate (9) of the steel-concrete combination section (4) at the bottom, the bottom surface of the prestressed concrete box girder (2) and the bottom surface of the prestressed concrete main girder (5) are flush with each other.
3. The steel-concrete bridge girder longitudinal full-section multidirectional equivalent connecting member according to claim 1, wherein: the steel grid chamber (10) of the steel-concrete combined section (4) and the cantilever end (3) of the prestressed concrete box girder (2) are constructed, spliced and spliced through staggered tooth shapes.
4. The steel-concrete bridge girder longitudinal full-section multidirectional equivalent connecting member according to claim 1, wherein: and an inverted T-shaped rib (15) of the steel-concrete combined section (4) is fixedly welded with the steel box girder (1).
5. The steel-concrete bridge girder longitudinal full-section multidirectional equivalent connecting member according to claim 1, wherein: the steel box girder (1), the steel grid chamber (7) of the steel-concrete combined section, the shear nails (12), the PBL keys (13), the inverted T-shaped ribs (15) and the longitudinal steel bundles (6) are made of anti-corrosion steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020330905.6U CN211772742U (en) | 2020-03-17 | 2020-03-17 | Longitudinal full-section multidirectional equivalent connecting member for steel-concrete bridge |
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| CN202020330905.6U CN211772742U (en) | 2020-03-17 | 2020-03-17 | Longitudinal full-section multidirectional equivalent connecting member for steel-concrete bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922054A (en) * | 2022-05-31 | 2022-08-19 | 浙江中天恒筑钢构有限公司 | Continuous rigid frame bridge prestressed steel concrete bearing platform structure and construction method thereof |
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2020
- 2020-03-17 CN CN202020330905.6U patent/CN211772742U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114922054A (en) * | 2022-05-31 | 2022-08-19 | 浙江中天恒筑钢构有限公司 | Continuous rigid frame bridge prestressed steel concrete bearing platform structure and construction method thereof |
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Inventor after: Jiang Haijun Inventor after: Jiang Bin Inventor after: Kong Xiangqi Inventor after: Liu Jie Inventor after: Zhang Juan Inventor after: Liu Chunrong Inventor after: Ren Zhen Inventor after: Cheng Tiantian Inventor after: Sun Yonggang Inventor after: Mou Wenbin Inventor after: Yuan Tangtao Inventor after: Zhang Xingbo Inventor after: Ren Qiang Inventor after: Si Yide Inventor after: Li Lei Inventor after: Zeng Wuliang Inventor after: Zhang Zhiwei Inventor after: Ming Yu Inventor before: Jiang Haijun Inventor before: Jiang Bin Inventor before: Kong Xiangqi Inventor before: Liu Jie Inventor before: Zhang Juan Inventor before: Liu Chunrong Inventor before: Ren Zhen Inventor before: Cheng Tiantian Inventor before: Yuan Tangtao Inventor before: Zhang Xingbo Inventor before: Ren Qiang Inventor before: Si Yide Inventor before: Li Lei Inventor before: Zeng Wuliang Inventor before: Zhang Zhiwei Inventor before: Ming Yu |