CN113136781B - Steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs and construction method - Google Patents
Steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs and construction method Download PDFInfo
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- CN113136781B CN113136781B CN202110280636.6A CN202110280636A CN113136781B CN 113136781 B CN113136781 B CN 113136781B CN 202110280636 A CN202110280636 A CN 202110280636A CN 113136781 B CN113136781 B CN 113136781B
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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
- E01D1/00—Bridges in general
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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
- E01D19/00—Structural or constructional details of 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
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling 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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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Abstract
The invention discloses a steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs and a construction method, wherein the steel-concrete composite beam bridge structure comprises a plurality of prefabricated steel-concrete combined sections and corresponding lower steel plate beams; each prefabricated steel-concrete combined section comprises a prefabricated concrete panel and upper steel plate beam sections which are connected through shear nails in a prefabricated mode. In the bridge span range, a full-span through-length lower steel plate beam is arranged below the connecting interface, and a plurality of prefabricated steel-concrete combined sections are arranged above the connecting interface. The prefabricated reinforced concrete combined sections are connected through cast-in-place wet joint concrete, and the upper steel plate beam and the lower steel plate beam are connected into a whole through high-strength bolts. The steel-concrete superposed beam bridge structure adopting the high-strength bolts to connect the steel webs ensures the reliability of interface connection by utilizing the factory-like integral manufacture of the prefabricated steel-concrete combination section, simultaneously avoids the concrete on-site pouring of the steel-concrete combination part, can shorten the construction period, saves the labor cost and improves the engineering quality.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs.
Background
The upper structure of the steel-concrete composite beam bridge mainly comprises a steel plate beam and a concrete bridge deck, so that the self weight of the structure can be reduced, and the mechanical property advantages of the two materials can be fully exerted. In the design and construction of the steel-concrete composite beam bridge at the present stage, the connection between the steel main beam and the concrete bridge deck is generally realized by adopting a welding nail connecting piece or a PBL (perforated steel plate-through bar), and the construction method of the bridge deck comprises a cast-in-place mode and a prefabrication mode.
The cast-in-place bridge deck construction method is characterized in that after steel plate beams are installed, concrete templates are erected, concrete is poured and maintained to the designed strength, but the method is long in construction period, consumes a large amount of manpower and material resources, and is difficult to guarantee the field construction quality.
The construction method of the prefabricated bridge deck comprises the steps of prefabricating the concrete bridge deck through factory blocks and then transporting the prefabricated bridge deck to the site for installation. And connecting the steel beam with the bridge deck slab in a mode of casting a strip-shaped wet joint or casting a reserved notch in situ.
In the existing construction of cast-in-place or prefabricated bridge decks, connecting parts are arranged on the interfaces of concrete and steel plate girders, the time required by cast-in-place and maintenance is long, if the bridge decks are connected by post-pouring of notches, the space requirement of large-scale arrangement of shear connectors is difficult to meet, and the problems of weak connection performance of steel-concrete interfaces, easy fatigue damage and the like exist.
Therefore, in order to solve the technical problems, the invention provides a mode of connecting the steel webs through high-strength bolts, which can avoid the defects in the prior art and further accelerate the field assembling speed of the bridge.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs, which can complete the shear connection process of a concrete bridge deck and the upper flange of a steel plate beam in a factory, and transfer the original site connection between the steel plate beam and the concrete bridge deck into the site connection of the high-strength bolts on the steel webs, thereby avoiding the concrete site pouring operation, shortening the construction period and saving the manpower and material costs.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides an adopt steel-concrete composite beam bridge structure of high-strength bolted connection steel web, includes that a plurality of prefabricated steel-concrete combines section and a plurality of lower steel plate roof beam.
Each prefabricated steel-concrete combined section comprises a prefabricated concrete panel and upper steel plate beam sections which are arranged on the bottom surface of the prefabricated concrete panel in parallel and equal to the lower steel plate beams in number.
The length of the precast concrete panel is arranged along the transverse bridge direction, and the width of the precast concrete panel is arranged along the longitudinal bridge direction.
The upper steel plate girder segment comprises an upper wing plate, an upper web plate and an upper web plate end plate of the steel plate girder.
And a plurality of shear nails are welded at the top of the upper wing plate of the steel plate beam. The steel plate beam upper wing plate is arranged at the bottom of the precast concrete panel along the longitudinal bridge direction, and each shear nail is pre-embedded in the precast concrete panel.
The top end of the upper web plate is vertically welded at the center of the bottom of the upper wing plate of the steel plate beam, and the bottom end of the upper web plate is vertically welded with the end plate of the upper web plate.
And the precast concrete panels in the plurality of precast reinforced concrete combined sections are spliced with each other along the longitudinal bridge direction, and cast-in-situ wet joint concrete is filled in splicing seams to form the concrete bridge deck.
And the upper steel plate girder segments in the plurality of prefabricated steel-concrete combined segments are spliced and welded with each other along the longitudinal bridge direction, so that the upper steel plate girder is formed.
And the lower steel plate beams all comprise lower web end plates, lower webs and lower wing plates of the steel plate beams, which are sequentially arranged from top to bottom. And two ends of the lower web are respectively and vertically welded with the lower web end plate and the lower wing plate of the steel plate beam.
The upper web end plate of the upper steel plate girder and the lower web end plate of the lower steel plate girder are both in threaded connection through a plurality of high-strength bolts.
The steel plate beam structure further comprises a plurality of connecting cross beams used for connecting the lower steel plate beams.
And the connecting cross beams are uniformly distributed along the length direction of the lower steel plate beam, and each connecting cross beam is distributed along the transverse bridge direction.
The upper web end plate and the lower web end plate are both straight plates.
The upper web end plate and the lower web end plate are both toothed plates or broken line plates.
The thickness of the precast concrete panel is changed along the transverse bridge direction, and the thickness of the connecting part of the precast concrete panel and the upper steel plate beam is the largest.
The high-strength bolt is a stainless steel high-strength bolt or a galvanized high-strength bolt.
A construction method of a steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs comprises the following steps.
And 7, laying the prefabricated steel-concrete combined section, and specifically comprising the following steps.
Step 7A, hoisting: and (4) transporting and hoisting the plurality of prefabricated steel-concrete combined sections prepared in the step (3) to be right above the lower steel plate girder. And the length of the precast concrete panel in each precast reinforced concrete combined section is arranged along the transverse bridge direction, and the width of the precast concrete panel is arranged along the longitudinal bridge direction.
Step 7B, bolt connection: and the height of each prefabricated steel-concrete combination section is reduced and the prefabricated steel-concrete combination section is attached to the lower web end plate in the lower steel plate beam at the bottom. And then, using high-strength bolts to bolt the lower web end plate and the upper web end plate in each prefabricated steel-concrete combined section.
And 7C, connecting adjacent prefabricated steel-concrete combined sections: and welding the upper wing plate of the adjacent steel plate girder and the end plate of the adjacent upper web plate to form the complete upper steel plate girder. And then filling cast-in-place wet joint concrete at the splicing position of the precast concrete panels of the adjacent precast steel-concrete combined sections and curing to form the concrete bridge deck.
Step 8, bridge deck pavement: and (7) paving a flexible bridge deck with the designed thickness on the top of the concrete bridge deck paved in the step (7).
And 9, carrying out traffic operation.
In the step 3, the precast concrete panel pouring mold comprises a fixed mold and a detachable mold. Wherein, the fixed mould is a steel plate beam upper wing plate. The detachable die is spliced on the outer side of the upper wing plate of the steel plate beam and detached after the maintenance of the precast concrete panel is finished.
In the step 7C, the number of the precast concrete panels is 2-5, and the width of each precast concrete panel along the longitudinal bridge direction is 2-3 m.
The invention has the following beneficial effects:
1. can put the shear force connection process on concrete decking and steel sheet roof beam top flange and accomplish at the mill, be connected the building site originally between steel sheet roof beam and concrete decking, shift to become the high strength bolt building site connection on the steel web to can avoid the concrete cast-in-place operation, shorten construction period, accelerate the construction progress, practice thrift manpower and materials cost.
2. The invention can utilize the upper wing plate of the steel web plate and the section of the precast concrete bridge deck slab to be a concrete pouring template with a transverse wet joint, can realize the construction without a support and accelerate the construction speed.
3. The invention can realize the full-prefabricated construction of the steel-concrete composite beam bridge, and can integrally replace the prefabricated steel-concrete combined section under the condition of long-term operation damage of the concrete bridge deck.
4. The upper web end plate and the lower web end plate can replace a longitudinal stiffening rib, and the connecting interface can improve the longitudinal shear resistance of the steel-concrete composite beam.
5. The invention adopts the high-strength bolt connection on the steel web plate, thereby facilitating the maintenance and replacement of the pavement in the later period.
Drawings
Fig. 1 shows a three-dimensional explosion diagram of a steel-concrete composite beam bridge structure using high-strength bolts to connect steel webs according to the present invention.
Fig. 2 is a three-dimensional structural view showing a steel-concrete composite girder bridge construction according to the present invention in which steel webs are connected by high-strength bolts.
Fig. 3 shows a first structural representation of a steel plate girder.
Fig. 4 shows a second constructional illustration of a steel plate girder.
Fig. 5 shows a sectional view of the connection of the steel plate girder with the precast concrete panel.
Fig. 6 is a sectional view showing a first structure of the steel-concrete composite girder bridge construction according to the present invention.
Fig. 7 is a sectional view showing a second structure of the steel-concrete composite girder bridge construction according to the present invention.
Fig. 8 shows a partial enlarged view at a in fig. 5.
Among them are:
1. prefabricating a steel-concrete combined section;
1-1, prefabricating a concrete panel; 1-2, steel plate beam upper wing plate; 1-3, an upper web plate; 1-4, upper web end plate;
2. a steel plate beam is arranged;
2-1, lower web end plate; 2-2, lower web; 2-3, steel plate beam lower wing plate;
3. a shear pin; 4. pouring wet joint concrete in situ; 5. a high-strength bolt; 6. a gasket; 7. and a nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
As shown in fig. 1, 2, 6 and 7, a steel-concrete composite beam bridge structure using high-strength bolts to connect steel webs comprises a plurality of prefabricated steel-concrete joint sections 1, a plurality of lower steel plate beams 2 and connecting cross beams.
In the present invention, the number of the lower steel plate girders 2 is preferably two.
Each prefabricated steel-concrete combined section comprises a prefabricated concrete panel 1-1 and a plurality of upper steel plate beam sections, in the embodiment, two upper steel plate beam sections are preferably selected to be 2, and the upper steel plate beam sections are arranged on two sides of the bottom surface of the prefabricated concrete panel in parallel.
The length of the precast concrete panel is arranged along the transverse bridge direction, and the width of the precast concrete panel is arranged along the longitudinal bridge direction.
Furthermore, the thickness of the precast concrete panel is changed along the transverse bridge direction, and the thickness of the connecting part of the precast concrete panel and the upper steel plate beam is the largest.
As shown in fig. 3 and 4, each upper steel plate girder segment includes a steel plate girder upper wing plate 1-2, an upper web 1-3, and an upper web end plate 1-4.
The top of the upper wing plate of the steel plate beam is welded with a plurality of shear nails 3.
The steel plate beam upper wing plate is arranged at the bottom of the precast concrete panel along the longitudinal bridge direction, and each shear nail is pre-embedded in the precast concrete panel, as shown in fig. 5.
The top end of the upper web plate is vertically welded at the center of the bottom of the upper wing plate of the steel plate beam, and the bottom end of the upper web plate is vertically welded with the end plate of the upper web plate.
The precast concrete panels in the plurality of precast reinforced concrete combined sections are spliced with each other along the longitudinal bridge direction, and cast-in-place wet joint concrete 4 is filled in the splicing seams to form the concrete bridge deck. The number of the precast concrete panels is preferably 2-5, and the precast concrete panels are determined according to the width of a bridge; the width of each precast concrete panel along the longitudinal bridge direction is 2-3 m.
And the upper steel plate girder segments in the plurality of prefabricated steel-concrete combined sections are spliced and welded with each other along the longitudinal bridge direction, so that the upper steel plate girder is formed.
Each lower steel plate beam comprises a lower web plate end plate 2-1, a lower web plate 2-2 and a lower wing plate 2-3 of the steel plate beam, which are sequentially arranged from top to bottom. And two ends of the lower web are respectively and vertically welded with the lower web end plate and the lower wing plate of the steel plate beam.
The upper web end plate of the upper steel plate girder and the lower web end plate of the lower steel plate girder are both in threaded connection through a plurality of high-strength bolts 5, and the tail ends of the high-strength bolts are fastened by gaskets 6 and nuts 7, as shown in fig. 8.
Further, the high-strength bolt preferably adopts a stainless steel high-strength bolt or a galvanized high-strength bolt and the like, and the strength of the bolt is preferably not lower than 8.8 grade.
The upper and lower web end panels preferably have two preferred embodiments as follows.
Example 1
The upper and lower web end plates are both straight plates and the bolting is preferably as shown in figures 3 and 6. In the present embodiment, the number of bolts required is relatively higher than in embodiment 2.
Example 2
The upper and lower web end panels are both castellated or broken line panels, the bolting preferably being as shown in figures 4 and 7. In the embodiment 2, the upper web end plate and the lower web end plate are meshed in a tooth form, the shearing resistance is strong, and the number of bolts required is less than that in the embodiment 1.
The connecting beams are used for connecting the lower steel plate beam, the connecting beams are uniformly distributed along the length direction of the lower steel plate beam, and each connecting beam is distributed along the transverse bridge direction.
A construction method of a steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs comprises the following steps.
Above-mentioned precast concrete panel pouring mould is preferred including fixed mould and detachable mould. Wherein, the fixed mould is the pterygoid lamina on the steel plate roof beam. The detachable die is spliced on the outer side of the upper wing plate of the steel plate beam.
And (4) casting concrete in the precast concrete panel pouring mould in situ and maintaining in a factory to form the precast reinforced concrete combined section. And dismantling the detachable mould after the maintenance of the precast concrete panel is finished.
And 7, laying the prefabricated steel-concrete combined section, and specifically comprising the following steps.
Step 7A, hoisting: and (4) transporting and hoisting the plurality of prefabricated steel-concrete combined sections prepared in the step (3) to be right above the lower steel plate girder. And the length of the precast concrete panel in each precast reinforced concrete combined section is arranged along the transverse bridge direction, and the width of the precast concrete panel is arranged along the longitudinal bridge direction.
Step 7B, bolt connection: and the height of each prefabricated steel-concrete combination section is reduced and the prefabricated steel-concrete combination section is attached to the lower web end plates of all the lower steel plate girders at the bottom. And then, using high-strength bolts to bolt the lower web end plate and the upper web end plate in each prefabricated steel-concrete combined section.
The specific operation method comprises the following steps: and the high-strength bolt penetrates through the upper web plate end plate and the lower web plate end plate, so that the prefabricated steel-concrete combined section and the lower steel plate beam are bolted together. Specifically, the upper web plate end plate 1-4 and the lower web plate end plate 2-1 are correspondingly provided with reserved holes, during construction, after the prefabricated steel-concrete combination section 1 is hoisted in place, the high-strength bolt 5 directly penetrates through the reserved holes of the upper web plate end plate 1-4 and the lower web plate end plate 2-1 from the upper part of the upper web plate end plate, and is bolted after the gasket 6 and the nut 7 are installed, so that the joint work of the prefabricated steel-concrete combination section 1 and the lower steel plate beam 2 is realized, and the advantages of concrete compression resistance and steel tensile strength are fully exerted.
In order to ensure the durability of the connection part, the high-strength bolt can be preferably a stainless steel high-strength bolt or a galvanized high-strength bolt.
In the invention, the bolt connection section of the upper web plate end plate and the lower web plate end plate is arranged near the section-shaped mandrel, thereby further exerting the concrete compression resistance and the steel tensile property.
And 7C, connecting adjacent prefabricated steel-concrete combined sections: and welding the upper wing plate of the adjacent steel plate girder and the end plate of the adjacent upper web plate to form the complete upper steel plate girder.
The invention utilizes the upper wing plate of the steel web plate and the section of the precast concrete bridge deck plate to be the concrete pouring template with the transverse wet joint, thereby realizing the construction without a bracket and accelerating the construction speed. Meanwhile, the maintenance, the replacement and the maintenance of the bridge deck in the later period are facilitated.
And then filling cast-in-place wet joint concrete at the splicing position of the precast concrete panels of the adjacent precast steel-concrete combined sections and curing to form the concrete bridge deck.
And 8, paving the bridge deck: and (7) paving a flexible bridge deck with the designed thickness on the top of the concrete bridge deck paved in the step (7).
And 9, carrying out traffic operation.
The invention ensures the reliability of interface connection by utilizing the factory integral manufacture of the prefabricated steel-concrete combination section, simultaneously avoids the concrete cast-in-place of the steel-concrete combination part, can shorten the construction period, saves the labor cost and improves the engineering quality.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (9)
1. A construction method of a steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs is characterized in that:
the steel-concrete superposed beam bridge structure adopting the high-strength bolts to connect the steel webs comprises a plurality of prefabricated steel-concrete combining sections and a plurality of lower steel plate beams;
each prefabricated steel-concrete combination section comprises a prefabricated concrete panel and upper steel plate beam sections which are arranged on the bottom surface of the prefabricated concrete panel in parallel and the number of the upper steel plate beam sections is equal to that of the lower steel plate beams;
the length of the precast concrete panel is arranged along the transverse bridge direction, and the width of the precast concrete panel is arranged along the longitudinal bridge direction;
the upper steel plate girder segment comprises an upper wing plate of the steel plate girder, an upper web plate and an upper web plate end plate;
the top of the upper wing plate of the steel plate beam is welded with a plurality of shear nails; the steel plate beam upper wing plate is arranged at the bottom of the precast concrete panel along the longitudinal bridge direction, and each shear nail is pre-embedded in the precast concrete panel;
the top end of the upper web plate is vertically welded at the center of the bottom of the upper wing plate of the steel plate beam, and the bottom end of the upper web plate is vertically welded with an upper web plate end plate;
splicing the precast concrete panels in the plurality of precast steel-concrete combined sections along the longitudinal bridge direction, and filling cast-in-situ wet joint concrete at splicing seams to form a concrete bridge deck;
the upper steel plate girder segments in the plurality of prefabricated steel-concrete combined segments are spliced and welded with each other along the longitudinal bridge direction, so that an upper steel plate girder is formed;
the lower steel plate beams all comprise lower web plate end plates, lower webs and lower wing plates of the steel plate beams which are sequentially arranged from top to bottom; two ends of the lower web are respectively and vertically welded with the lower web end plate and the lower wing plate of the steel plate beam;
the upper web end plate of the upper steel plate girder and the lower web end plate of the lower steel plate girder are both in threaded connection through a plurality of high-strength bolts;
the construction method of the steel-concrete composite beam bridge structure comprises the following steps:
step 1, welding an upper steel plate beam segment: vertically welding an upper wing plate and an upper web end plate of a steel plate beam at two ends of an upper web in a factory to form I-shaped steel or similar I-shaped steel;
step 2, welding the shear nails: welding a plurality of shear nails on the top surface of the upper wing plate of the steel plate beam in each upper steel plate beam section welded in the step 1;
step 3, preparing a prefabricated steel-concrete combined section: symmetrically placing the two upper steel plate beam sections welded with the shear nails in parallel, erecting a precast concrete panel pouring mold on one side of each shear nail, and enabling all the shear nails in the two upper steel plate beam sections to be positioned in the concrete pouring mold; pouring concrete in situ in the precast concrete panel pouring mould and maintaining in a factory to form a precast reinforced concrete combination section;
step 4, welding a lower steel plate beam: in a construction site, vertically welding a lower web plate end plate and a steel plate beam lower wing plate at two ends of a lower web plate to form a lower steel plate beam;
step 5, erecting a lower steel plate beam: mounting a plurality of welded lower steel plate beams on the roadbed in parallel, so that each lower steel plate beam is arranged along the longitudinal bridge direction, and the end plate of the lower web is positioned at the top;
step 6, mounting a connecting beam: uniformly arranging a plurality of connecting cross beams along the length direction of the lower steel plate beam, wherein each connecting cross beam is arranged along the transverse bridge direction, and two ends of each connecting cross beam are vertically welded with the lower steel plate beam;
step 7, laying the prefabricated reinforced concrete combined section, and specifically comprising the following steps:
step 7A, hoisting: transporting and hoisting the plurality of prefabricated steel-concrete combined sections prepared in the step 3 to be right above the lower steel plate beam; the length of the precast concrete panel in each precast reinforced concrete combined section is distributed along the transverse bridge direction, and the width of the precast concrete panel is distributed along the longitudinal bridge direction;
step 7B, bolt connection: the height of each prefabricated steel-concrete combination section is reduced and the prefabricated steel-concrete combination section is attached to a lower web end plate in the lower steel plate beam at the bottom; then, connecting the lower web plate end plate with the upper web plate end plate in each prefabricated steel-concrete combined section through bolts by adopting high-strength bolts;
and 7C, connecting adjacent prefabricated steel-concrete combined sections: welding the upper wing plate of the adjacent steel plate girder and the end plate of the adjacent upper web plate to form a complete upper steel plate girder; filling cast-in-place wet joint concrete at the splicing position of the precast concrete panels of the adjacent precast reinforced concrete combined sections and curing to form a concrete bridge deck;
and 8, paving the bridge deck: paving a flexible bridge floor with a designed thickness on the top of the concrete bridge deck paved in the step 7;
and 9, carrying out traffic operation.
2. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 1, wherein: in the step 3, the precast concrete panel pouring mold comprises a fixed mold and a detachable mold; wherein the fixed die is an upper wing plate of the steel plate beam; the detachable die is spliced on the outer side of the upper wing plate of the steel plate beam and detached after the maintenance of the precast concrete panel is finished.
3. The construction method of the steel-concrete composite beam bridge structure adopting the high-strength bolt for connecting the steel webs according to claim 1, characterized in that: in the step 7C, the number of the precast concrete panels is 2-5, and the width of each precast concrete panel along the longitudinal bridge direction is 2-3 m.
4. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 1, wherein: the steel plate beam structure also comprises a plurality of connecting cross beams used for connecting a plurality of lower steel plate beams.
5. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 4, wherein: and the connecting cross beams are uniformly distributed along the length direction of the lower steel plate beam, and each connecting cross beam is distributed along the transverse bridge direction.
6. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 1, wherein: the upper web end plate and the lower web end plate are both straight plates.
7. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 1, wherein: the upper web end plate and the lower web end plate are both toothed plates or broken line plates.
8. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 1, wherein: the thickness of the precast concrete panel is changed along the transverse bridge direction, and the thickness of the connecting part of the precast concrete panel and the upper steel plate beam is the largest.
9. The construction method of the steel-concrete composite beam bridge construction adopting the high-strength bolt for connecting the steel web according to claim 1, wherein: the high-strength bolt is a stainless steel high-strength bolt or a galvanized high-strength bolt.
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| CN202110280636.6A CN113136781B (en) | 2021-03-16 | 2021-03-16 | Steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs and construction method |
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| CN202110280636.6A CN113136781B (en) | 2021-03-16 | 2021-03-16 | Steel-concrete composite beam bridge structure adopting high-strength bolts to connect steel webs and construction method |
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| JPH08338007A (en) * | 1995-06-14 | 1996-12-24 | Mitsubishi Heavy Ind Ltd | Stacked h-steel bridge |
| JP5884192B2 (en) * | 2013-05-30 | 2016-03-15 | Ｊｆｅスチール株式会社 | Bridge structure |
| CN104278642A (en) * | 2014-10-29 | 2015-01-14 | 江苏省交通科学研究院股份有限公司 | Corrugated steel web prefabricated assembly |
| CN105839510B (en) * | 2016-05-23 | 2017-10-10 | 西安公路研究院 | A kind of steel and ultra-high performance concrete composite continuous bridge structure and its construction method |
| CN109457593A (en) * | 2018-11-11 | 2019-03-12 | 中铁二院工程集团有限责任公司 | A kind of assembled steel web plate composite box joist steel web and precast slab connecting structure |
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