CN111395148A - Steel beam and combined beam connecting structure - Google Patents
Steel beam and combined beam connecting structure Download PDFInfo
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- CN111395148A CN111395148A CN202010259349.2A CN202010259349A CN111395148A CN 111395148 A CN111395148 A CN 111395148A CN 202010259349 A CN202010259349 A CN 202010259349A CN 111395148 A CN111395148 A CN 111395148A
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed 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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a steel beam and composite beam connecting structure, which comprises a steel box beam and a composite beam which are connected, wherein the steel box beam comprises a steel box beam main longitudinal beam and steel box beam cantilever plates connected to two sides of the steel box beam main longitudinal beam, the steel box beam main longitudinal beam comprises a steel beam top plate, a steel beam bottom plate and a steel beam web plate, the steel beam top plate and the steel beam bottom plate are respectively connected to the upper end and the lower end of the steel beam web plate, the composite beam comprises a composite beam main longitudinal beam and composite beam cantilever plates connected to two sides of the composite beam main longitudinal beam, the composite beam main longitudinal beam comprises a composite beam steel top plate, a composite beam steel bottom plate and a composite beam steel web plate, the composite beam steel top plate and the composite beam steel bottom plate are respectively connected to the upper end and the lower end of the composite beam steel web plate, the steel web plate of the composite beam is welded and connected with the composite. The invention has the advantages of simple form, smooth force transmission and convenient connection, and is beneficial to the standardized manufacture and the modularized assembly of the mixed beam of the cable-stayed bridge.
Description
Technical Field
The invention belongs to the technical field of bridges, and particularly relates to a connecting structure of a steel beam and a composite beam.
Background
The steel beam bridge is a common structure of a cable-stayed bridge, and has the advantages of high steel rigidity, light weight and high manufacturing cost, so that the advantages of two different materials can be exerted to the greatest extent by adopting a steel-concrete composite beam.
Chinese patent CN110863417A discloses a steel-concrete composite beam bridge and its construction method, the steel-concrete composite beam bridge includes a steel-concrete composite beam, the four sides of the concrete bridge deck have ring overlap steel bars; between adjacent concrete bridge floor boards, through reinforcing steel bars penetrate into annular lapping reinforcing steel bars, high-performance concrete is poured into longitudinal and transverse wet joints, and bottom plates of longitudinal adjacent steel beams are connected with high-strength bolts through splicing steel plates. The construction method mainly comprises the following steps: prefabricating a steel-concrete combined beam, and hoisting the beam in place; and penetrating steel bars are respectively penetrated into the annular lap-joint steel bars of the horizontal and longitudinal adjacent concrete bridge deck plates, high-performance concrete is adopted to cast horizontal and longitudinal wet joints, and splicing steel plates and high-strength bolts are used for connecting the bottom plates of the vertical adjacent steel beams.
Chinese patent CN210086030U discloses a connecting device of an assembly type steel-concrete composite beam for connecting a precast concrete deck slab and a steel beam; the middle part of the lower end surface of the precast concrete bridge deck is provided with a through groove arranged along the length direction of the precast concrete bridge deck; the steel beam is I-shaped steel; the middle part of the upper end surface of the steel beam is provided with a ribbed slab which protrudes upwards; the rib plate is positioned in the through groove of the precast concrete bridge deck and is in clearance fit with the through groove; the gap between the rib plate and the through groove is filled with grouting material; the lower end face of the precast concrete bridge deck is attached to the upper end face of the steel beam; the two ends of the gap between the rib plate and the through groove are respectively sealed by end plates.
Chinese patent CN110670473A discloses a connecting structure of a prefabricated steel-concrete composite beam, which comprises a steel beam (1) and a concrete precast slab (2), wherein the concrete precast slab (2) is poured on the steel beam (1), a shear nail (3) is fixed on the upper side of the steel beam (1), a connecting end of the concrete precast slab (2) is provided with a connecting surface with a slope surface, and a groove (5) is arranged on the connecting surface; the connecting ends of the steel beams (1) are connected with each other, the connecting ends of the concrete precast slabs (2) are connected with each other through concrete wet joints (6), and the concrete wet joints (6) are located on the upper sides of the connecting ends of the steel beams (1) to cover the connecting surfaces and the shear nails (3).
As mentioned above, the prior art relates to the form of a plurality of steel-concrete composite beams, but the existing connection mode has complex and fussy process and higher requirement on the prefabrication precision.
Disclosure of Invention
The invention aims to provide a connecting structure of a steel beam and a composite beam. The method is used for realizing the integrated design of the steel beam and the combined beam. Meanwhile, the main beam joint area is simple in structural form, smooth in force transmission and strong in bearing capacity, and standardized manufacturing and modular assembly of the cable-stayed bridge hybrid beam are realized.
The purpose of the invention can be realized by the following technical scheme:
the invention provides a connecting structure of a steel beam and a composite beam, which comprises the steel box beam and the composite beam which are connected.
The steel box girder comprises a steel box girder main longitudinal beam arranged in the middle and steel box girder cantilever plates connected to two sides of the steel box girder main longitudinal beam, the steel box girder main longitudinal beam comprises a steel girder top plate, a steel girder bottom plate and a steel girder web, the steel girder top plate and the steel girder bottom plate are respectively connected to the upper end and the lower end of the steel girder web, and the steel box girder cantilever plates are connected to the steel girder web.
The combined beam comprises a central combined beam main longitudinal beam and combined beam cantilever plates connected to two sides of the combined beam main longitudinal beam, the combined beam main longitudinal beam comprises a combined beam steel top plate, a combined beam steel bottom plate and a combined beam steel web, the combined beam steel top plate and the combined beam steel bottom plate are respectively connected to the upper end and the lower end of the combined beam steel web, and the combined beam cantilever plates are connected to the combined beam steel web.
And the steel beam web plate is connected with the combined beam steel web plate in a welding manner.
And filling the composite beam concrete above the composite beam steel top plate, and filling the composite beam concrete on the composite beam steel bottom plate.
The steel box girder is a steel structure member, the main body of the combined girder is a steel structure, and the combined girder further comprises a concrete structure, and the steel box girder and the combined girder are stressed together. The steel box girder and the composite girder are smoothly connected with each other.
In one embodiment of the invention, the cantilever plates of the steel box girder are symmetrically arranged along the central axis of the main longitudinal girder of the steel box girder; the steel box girder cantilever slab comprises a steel box girder bridge deck and a steel joist, wherein the steel box girder bridge deck is positioned on the upper part, the steel joist is positioned on the lower part and used for supporting the steel box girder bridge deck, and the steel joist in the steel box girder cantilever slab is connected to a steel girder web.
In one embodiment of the invention, the composite beam cantilever plates are symmetrically arranged along the central axis of the main longitudinal beam of the composite beam; the composite beam cantilever slab comprises a composite beam bridge deck and a steel joist, wherein the composite beam bridge deck is positioned at the upper part, the steel joist is positioned at the lower part and is used for supporting the composite beam bridge deck, the steel joist in the composite beam cantilever slab is connected to a composite beam steel web, and the composite beam bridge deck is of a concrete structure.
In one embodiment of the invention, a steel beam top plate U rib and a steel beam top plate high stiffening T rib are welded on the lower side of the steel beam top plate, and the steel beam top plate high stiffening T rib is welded and connected with the steel beam top plate U rib.
In one embodiment of the invention, the steel beam bottom plate U rib and the steel beam bottom plate height-increasing stiffening T rib are welded on the upper side of the steel beam bottom plate, and the steel beam bottom plate height-increasing stiffening T rib is welded and connected with the steel beam bottom plate U rib.
In one embodiment of the present invention, the steel beam top plate or the steel beam bottom plate of the section connected to the composite beam is the longest as the high stiffening T-rib.
In one embodiment of the present invention, the composite girder steel top plate heightening stiffener is welded to the upper side of the composite girder steel top plate, and the composite girder steel bottom plate heightening stiffener is welded to the upper side of the composite girder steel bottom plate.
In one embodiment of the invention, the composite beam steel top plate high-stiffening rib corresponds to the steel beam top plate high-stiffening T-rib position, and the composite beam steel bottom plate high-stiffening rib corresponds to the steel beam bottom plate high-stiffening T-rib position.
In one embodiment of the invention, the composite beam concrete is filled between above the composite beam steel top plate to a position flush with the steel beam top plate and between above the composite beam steel bottom plate to a position above the composite beam steel bottom plate at the top end of the composite beam steel bottom plate elevated stiffener.
In an embodiment of the invention, a composite beam bottom plate steel vertical plate is welded on the upper side of the composite beam steel bottom plate, the composite beam steel top plate heightening stiffening rib is welded with the composite beam top plate steel vertical plate, the composite beam top plate steel vertical plate is welded on the upper side of the composite beam steel top plate, the composite beam steel bottom plate heightening stiffening rib is welded with the composite beam bottom plate steel vertical plate, and the composite beam bottom plate steel vertical plate and the composite beam top plate steel vertical plate are also used as pouring baffles of composite beam concrete, so that the composite beam steel vertical plate and the composite beam top plate steel vertical plate are prevented from flowing into a steel box beam when the composite beam concrete is poured.
The combined beam concrete, the combined beam steel bottom plate, the combined beam steel top plate and the combined beam steel bottom plate become high stiffening ribs to form reliable connection, so that the combined beam concrete can bear force jointly, and the bearing performance of the structure is improved.
In one embodiment of the invention, the composite beam steel top plate heightening stiffening rib and the composite beam steel bottom plate heightening stiffening rib are arranged for strengthening stress.
In one embodiment of the invention, the steel box girder butt joint face steel girder top plate heightening stiffening T rib is welded with the composite girder top plate steel vertical plate on the composite girder butt joint face, and the connecting position of the stiffening T rib corresponds to the position of the composite girder top plate heightening stiffening rib welded on the composite girder top plate steel vertical plate, so that the common stress is further enhanced, the stress of the connecting part is continuous, and the structural integrity is improved.
In one embodiment of the invention, the steel box girder butt joint surface steel girder bottom plate heightening stiffening T rib is welded with the composite girder bottom plate steel vertical plate on the composite girder butt joint surface, and the connecting position of the T rib corresponds to the position of the composite girder bottom plate heightening stiffening rib welded on the composite girder bottom plate steel vertical plate, so that the stress on the connecting position is continuous. The smooth transition of structural connection department, the simple structure, the wholeness is strong.
In the invention, the heightening stiffening T ribs and the heightening stiffening ribs of the steel box girder and the combination girder on the non-connection section are linearly decreased from near to far so as to achieve the purposes of reducing materials and improving economic benefits. And the combined beam concrete is poured on the top plate and the bottom plate of the connecting section of the combined beam, and forms common stress with the steel top plate and the steel bottom plate of the combined beam to strengthen the stress performance of the structure. On the section is connected with the steel box girder to the combination beam, all be equipped with the steel riser from top to bottom, with becoming high stiffening rib height, act as the baffle effect, prevent to flow into in the steel box girder when combination beam concrete placement. The steel box girder and the combined girder connected in the mode are reliably connected, are smoothly stressed, have better integral stress performance and simultaneously achieve the aim of good economic benefit.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention provides a novel connecting structure of a hybrid beam, and practices the integrated design of a steel beam and a composite beam.
2. The structural form of the joint area of the steel beam and the composite beam is simple, the force transmission is smooth, and the bearing capacity is strong.
3. The standardized construction and the modularized assembly of the cable-stayed bridge hybrid beam are realized.
Drawings
FIG. 1 is a schematic structural view of a structural section of a beam section of a steel box beam in example 1;
FIG. 2 is a schematic structural sectional view of a beam section of the composite beam in example 1;
fig. 3 is a structural schematic view (side view) of the joint between the steel box girder and the composite girder in example 1.
The reference numbers in the figures indicate: 1. the steel beam top plate, 2, the steel beam top plate U rib, 3, the steel beam top plate heightening stiffening T rib, 4, the steel beam bottom plate, 5, the steel beam bottom plate U rib, 6, the steel beam bottom plate heightening stiffening T rib, 7, the steel beam web, 8, the composite beam steel top plate, 9, the composite beam steel top plate heightening stiffening rib, 10, the composite beam steel bottom plate, 11, the composite beam steel bottom plate heightening stiffening rib, 12, the composite beam steel web, 13, the composite beam bottom plate steel vertical plate, 14, the composite beam top plate steel vertical plate, 15, the composite beam concrete, 16, the composite beam bridge deck, 17, the steel joist, 18 and the steel box beam bridge deck.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
Referring to fig. 1, 2 and 3, the present embodiment provides a steel beam and composite beam connection structure, which includes a steel box beam and a composite beam connected to each other.
In this embodiment, the steel box girder includes steel box girder main longitudinal beam placed in the middle and connects the steel box girder cantilever slab in steel box girder main longitudinal beam both sides, steel box girder main longitudinal beam includes girder steel roof plate 1, girder steel bottom plate 4 and girder steel web 7, girder steel roof plate 1 and girder steel bottom plate 4 are connected respectively at the upper and lower both ends of girder steel web 7, steel box girder cantilever slab connects on girder steel web 7.
In this embodiment, the composite beam includes a central composite beam main longitudinal beam and composite beam cantilever plates connected to both sides of the composite beam main longitudinal beam, the composite beam main longitudinal beam includes a composite beam steel top plate 8, a composite beam steel bottom plate 10 and a composite beam steel web 12, the composite beam steel top plate 8 and the composite beam steel bottom plate 10 are respectively connected to the upper and lower ends of the composite beam steel web 12, and the composite beam cantilever plates are connected to the composite beam steel web 12.
In this embodiment, the steel beam web 7 is connected to the composite beam steel web 12 by welding.
In this embodiment, the composite beam concrete 15 is filled above the composite beam steel top plate 8, and the composite beam concrete 15 is filled on the composite beam steel bottom plate 10.
In the embodiment, the cantilever plates of the steel box girder are symmetrically arranged along the central axis of the main longitudinal beam of the steel box girder; the steel box girder cantilever slab comprises a steel box girder bridge deck 18 and a steel joist 17, wherein the steel box girder bridge deck 18 is positioned on the upper part, the steel joist 17 is positioned on the lower part and is used for supporting the steel box girder bridge deck 18, and the steel joist 17 in the steel box girder cantilever slab is connected on a steel girder web 7.
In this embodiment, the cantilever plates of the composite beam are symmetrically arranged along the central axis of the main longitudinal beam of the composite beam; the composite beam cantilever slab comprises a composite beam bridge deck 16 and a steel joist 17, wherein the composite beam bridge deck 16 is positioned at the upper part, the steel joist 17 is positioned at the lower part and is used for supporting the composite beam bridge deck 16, the steel joist 17 in the composite beam cantilever slab is connected to a composite beam steel web 12, and the composite beam bridge deck 16 is of a concrete structure.
In this embodiment, the welding of 1 downside of girder steel roof has girder steel roof U rib 2 and girder steel roof to become more energy-conserving T rib 3, the girder steel roof becomes more energy-conserving T rib 3 and girder steel roof U rib 2 welded connection.
In this embodiment, the welding of 4 upside of girder steel bottom plates has girder steel bottom plate U rib 5 and girder steel bottom plate to become more energy T rib 6, girder steel bottom plate becomes more energy T rib 6 and girder steel bottom plate U rib 5 welded connection.
In this embodiment, the steel beam top plate or the steel beam bottom plate of the section connected to the composite beam has the longest height-increasing stiffening T- rib 3 or 6.
In this embodiment, a composite beam steel top plate height increasing stiffener 9 is welded to the upper side of a composite beam steel top plate 8, and a composite beam steel bottom plate height increasing stiffener 11 is welded to the upper side of a composite beam steel bottom plate 10.
In this embodiment, the combination beam steel top plate height-increasing stiffening rib 9 corresponds to the steel beam top plate height-increasing stiffening T rib 3, and the combination beam steel bottom plate height-increasing stiffening rib 11 corresponds to the steel beam bottom plate height-increasing stiffening T rib 6.
In this embodiment, the composite beam concrete 15 is filled between the position above the composite beam steel top plate 8 and flush with the steel beam top plate 1 and between the position above the composite beam steel bottom plate 10 and the position above the composite beam steel bottom plate and the top end of the composite beam steel bottom plate heightening stiffening rib 11.
In this embodiment, a composite beam bottom plate steel vertical plate 13 is welded on the upper side of the composite beam steel bottom plate 10, the composite beam steel top plate heightening and stiffening rib 9 is welded with a composite beam top plate steel vertical plate 14, the composite beam top plate steel vertical plate 14 is welded on the upper side of the composite beam steel top plate 8, the composite beam steel bottom plate heightening and stiffening rib 11 is welded with the composite beam bottom plate steel vertical plate 13, and the composite beam bottom plate steel vertical plate 13 and the composite beam top plate steel vertical plate 14 are also used as pouring baffles of the composite beam concrete 15, so that the composite beam concrete 15 is prevented from flowing into the steel box beam when being poured. The composite beam concrete 15 is reliably connected with the composite beam steel bottom plate 10, the composite beam steel top plate 8 and the composite beam steel bottom plate heightening stiffening rib 11, so that the composite beam steel bottom plate heightening stiffening rib can bear force jointly, and the bearing performance of the structure is improved.
In this embodiment, the composite beam steel top plate height-increasing stiffener 9 and the composite beam steel bottom plate height-increasing stiffener 11 are provided for the purpose of reinforcing the stress.
In this embodiment, the steel beam top plate height-variable stiffening T rib 3 on the steel box girder butt joint surface is welded with the composite girder top plate steel vertical plate 14 on the composite girder butt joint surface, and the connecting position thereof corresponds to the composite girder steel top plate height-variable stiffening rib 9 welded on the composite girder top plate steel vertical plate 14, so as to further enhance the common stress, so that the stress of the connecting part is continuous, and the structural integrity is improved.
In this embodiment, the beam bottom plate height-increasing stiffening T rib 6 on the butt-joint surface of the steel box beam is welded to the bottom plate steel upright 13 of the composite beam on the butt-joint surface of the composite beam, and the connecting position of the beam bottom plate height-increasing stiffening T rib corresponds to the position of the composite beam bottom plate height-increasing stiffening rib 11 welded to the bottom plate steel upright 13 of the composite beam, so that the stress is continuous at the connecting position. The smooth transition of structural connection department, the simple structure, the wholeness is strong.
The steel box girder is a steel structure member, the main body of the combined girder is a steel structure, and the combined girder further comprises a concrete structure, and the steel box girder and the combined girder are stressed together. The steel box girder and the composite girder are smoothly connected with each other.
In this embodiment, the height-increasing stiffening ribs and the height-increasing stiffening ribs of the steel box girder and the composite girder at the non-connecting section decrease linearly from near to far, so as to achieve the purposes of reducing materials and improving economic benefits. And the combined beam concrete is poured on the top plate and the bottom plate of the connecting section of the combined beam, and forms common stress with the steel top plate and the steel bottom plate of the combined beam to strengthen the stress performance of the structure. On the section is connected with the steel box girder to the combination beam, all be equipped with the steel riser from top to bottom, with becoming high stiffening rib height, act as the baffle effect, prevent to flow into in the steel box girder when combination beam concrete placement. The steel box girder and the combined girder connected in the mode are reliably connected, are smoothly stressed, have better integral stress performance and simultaneously achieve the aim of good economic benefit.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A connecting structure of a steel beam and a composite beam is characterized by comprising the steel box beam and the composite beam which are connected,
the steel box girder comprises a central steel box girder main longitudinal girder and steel box girder cantilever plates connected to two sides of the steel box girder main longitudinal girder, the steel box girder main longitudinal girder comprises a steel girder top plate (1), a steel girder bottom plate (4) and a steel girder web plate (7), the steel girder top plate (1) and the steel girder bottom plate (4) are respectively connected to the upper end and the lower end of the steel girder web plate (7), the steel box girder cantilever plates are connected to the steel girder web plate (7),
the composite beam comprises a central composite beam main longitudinal beam and composite beam cantilever plates connected to two sides of the composite beam main longitudinal beam, the composite beam main longitudinal beam comprises a composite beam steel top plate (8), a composite beam steel bottom plate (10) and a composite beam steel web (12), the composite beam steel top plate (8) and the composite beam steel bottom plate (10) are respectively connected to the upper end and the lower end of the composite beam steel web (12), the composite beam cantilever plates are connected to the composite beam steel web (12),
the steel beam web (7) is connected with the combined beam steel web (12) in a welding way,
and filling the composite beam concrete (15) above the composite beam steel top plate (8), and filling the composite beam concrete (15) on the composite beam steel bottom plate (10).
2. The steel beam and composite beam connecting structure as claimed in claim 1, wherein the cantilever plates of the steel box beam are symmetrically arranged along the central axis of the main longitudinal beam of the steel box beam; the steel box girder cantilever slab comprises a steel box girder bridge deck (18) and a steel joist (17), wherein the steel box girder bridge deck (18) is positioned on the upper part, the steel joist (17) is positioned on the lower part and used for supporting the steel box girder bridge deck (18), and the steel joist (17) in the steel box girder cantilever slab is connected on a steel girder web (7).
3. The steel beam and composite beam connecting structure according to claim 1, wherein the composite beam cantilever plates are symmetrically arranged along the central axis of the main longitudinal beam of the composite beam; the composite beam cantilever slab comprises a composite beam bridge deck (16) and a steel joist (17), wherein the composite beam bridge deck (16) is positioned at the upper part, the steel joist (17) is positioned at the lower part and is used for supporting the composite beam bridge deck (16), the steel joist (17) in the composite beam cantilever slab is connected to a composite beam steel web (12), and the composite beam bridge deck (16) is of a concrete structure.
4. The steel beam and composite beam connecting structure as claimed in claim 1, wherein steel beam top plate U ribs (2) and steel beam top plate heightening stiffening T ribs (3) are welded on the lower side of the steel beam top plate (1), and the steel beam top plate heightening stiffening T ribs (3) are welded and connected with the steel beam top plate U ribs (2);
girder steel bottom plate (4) upside welding has girder steel bottom plate U rib (5) and girder steel bottom plate to become more energy T rib (6), girder steel bottom plate becomes more energy T rib (6) and girder steel bottom plate U rib (5) welded connection.
5. The steel beam and composite beam connecting structure according to claim 4, wherein the composite beam steel top plate heightening stiffening rib (9) is welded to the upper side of the composite beam steel top plate (8), and the composite beam steel bottom plate heightening stiffening rib (11) is welded to the upper side of the composite beam steel bottom plate (10).
6. The steel beam and composite beam connecting structure according to claim 5, wherein the composite beam steel top plate heightening stiffening rib (9) corresponds to the steel beam top plate heightening stiffening T rib (3) in position, and the composite beam steel bottom plate heightening stiffening rib (11) corresponds to the steel beam bottom plate heightening stiffening T rib (6) in position.
7. The steel beam and composite beam connecting structure according to claim 5, wherein the composite beam concrete (15) is filled between the upper portion of the composite beam steel top plate (8) and the position flush with the steel beam top plate (1) and between the upper portion of the composite beam steel bottom plate (10) and the position of the top end of the composite beam steel bottom plate heightening stiffening rib (11).
8. The steel beam and composite beam connecting structure according to claim 4, wherein a composite beam bottom plate steel vertical plate (13) is welded on the upper side of the composite beam steel bottom plate (10), the composite beam top plate heightening stiffening rib (9) is welded with the composite beam top plate steel vertical plate (14), the composite beam top plate steel vertical plate (14) is welded on the upper side of the composite beam steel top plate (8), the composite beam steel bottom plate heightening stiffening rib (11) is welded with the composite beam bottom plate steel vertical plate (13), and the composite beam bottom plate steel vertical plate (13) and the composite beam top plate steel vertical plate (14) are used as pouring baffles of the composite beam concrete (15).
9. The connecting structure of the steel beam and the composite beam as claimed in claim 8, wherein the steel beam top plate height-increasing stiffening T-shaped rib (3) on the butt joint surface of the steel box beam is welded with the steel upright plate (14) of the composite beam top plate on the butt joint surface of the composite beam, and the connecting position of the T-shaped rib corresponds to the position of the steel beam top plate height-increasing stiffening rib (9) welded on the steel upright plate (14) of the composite beam top plate.
10. The connecting structure of the steel beam and the composite beam as claimed in claim 8, wherein the steel beam bottom plate height-increasing stiffening T-shaped rib (6) on the butt joint surface of the steel box beam is welded with the steel upright plate (13) of the composite beam bottom plate on the butt joint surface of the composite beam, and the connecting position of the T-shaped rib corresponds to the position of the steel reinforcing rib (11) of the composite beam bottom plate height-increasing stiffening rib welded on the steel upright plate (13) of the composite beam bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259349.2A CN111395148A (en) | 2020-04-03 | 2020-04-03 | Steel beam and combined beam connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010259349.2A CN111395148A (en) | 2020-04-03 | 2020-04-03 | Steel beam and combined beam connecting structure |
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| CN111395148A true CN111395148A (en) | 2020-07-10 |
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| CN202010259349.2A Pending CN111395148A (en) | 2020-04-03 | 2020-04-03 | Steel beam and combined beam connecting structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403932A (en) * | 2021-06-24 | 2021-09-17 | 中交(福州)建设有限公司 | Light steel-concrete combined beam structure and construction method thereof |
| CN113565259A (en) * | 2021-08-18 | 2021-10-29 | 江苏京沪重工有限公司 | Machining process for cantilever section of steel box girder of arc cantilever landscape platform |
-
2020
- 2020-04-03 CN CN202010259349.2A patent/CN111395148A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403932A (en) * | 2021-06-24 | 2021-09-17 | 中交(福州)建设有限公司 | Light steel-concrete combined beam structure and construction method thereof |
| CN113565259A (en) * | 2021-08-18 | 2021-10-29 | 江苏京沪重工有限公司 | Machining process for cantilever section of steel box girder of arc cantilever landscape platform |
| CN113565259B (en) * | 2021-08-18 | 2022-07-15 | 江苏京沪重工有限公司 | Machining process for cantilever section of steel box girder of circular arc cantilever landscape platform |
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