CN112813827B - Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof - Google Patents
Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof Download PDFInfo
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- CN112813827B CN112813827B CN202110139852.9A CN202110139852A CN112813827B CN 112813827 B CN112813827 B CN 112813827B CN 202110139852 A CN202110139852 A CN 202110139852A CN 112813827 B CN112813827 B CN 112813827B
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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
- 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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
A steel-reinforced concrete composite beam bridge structure with a perforated steel pipe and a construction method thereof are disclosed, wherein the steel-reinforced concrete composite beam bridge structure with the perforated steel pipe comprises a concrete bridge deck, a steel pipe connecting piece and a steel girder, a plurality of fixing assemblies are arranged on the steel girder, each fixing assembly comprises a fixing seat, a T-shaped groove is arranged on each fixing seat, two movable grooves are respectively arranged on two sides of a notch at the lower part of each T-shaped groove, a clamping block is movably arranged in each of the two movable grooves, the rear end of each clamping block is connected with a headless screw, the rear end of each headless screw is connected with a bolt, a threaded hole for mounting the headless screws and the bolts is arranged on each fixing seat, each threaded hole penetrates through each movable groove, the front end part of each bolt is a polished rod, a stepped hole penetrating through the T-shaped groove is arranged on the upper side of each threaded hole, stepped blocks are arranged in the stepped holes in a clearance manner, a section of inclined plane is arranged at the bottom of each stepped block, and steps are arranged on the periphery of the top of each fixing seat, the steel pipe connecting piece is installed at the fixing base top. The invention can improve the construction efficiency, and has convenient installation, reliable connection and firm installation.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a steel-reinforced concrete composite beam bridge structure with an opening and a construction method thereof.
Background
The shear resistant part is a key part combining the steel girder and the concrete bridge deck plate together and is also a key part for ensuring that two materials can exert a combined effect, the shear resistant part is fixed on the steel girder basically by adopting a welding mode at present, the installation is inconvenient, and the shear resistant effect can be achieved only by welding a plurality of shear resistant parts on the steel girder, so that the welding workload of workers is very large, the consumed time is long, the installation efficiency of the shear resistant part is low, and the construction efficiency is influenced.
Disclosure of Invention
The invention aims to provide a steel-concrete composite beam bridge structure with an open-pore steel pipe, which facilitates the installation of a shear resistant part and improves the construction efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: the perforated steel pipe reinforced concrete composite beam bridge structure comprises a concrete bridge deck, a steel pipe connecting piece and a plurality of steel girders, wherein the section of each steel girder is I-shaped, each steel girder comprises an upper wing plate and a web plate, the concrete bridge deck is erected above the steel girder, a plurality of fixing components are arranged on the steel girder, each fixing component comprises a fixing seat, a T-shaped groove for installing the steel girder is arranged on each fixing seat, two movable grooves are respectively arranged on two sides of a notch at the lower part of the T-shaped groove, two clamping blocks are respectively and movably arranged in the two movable grooves and can be mutually closed, one part of each clamping block is always positioned in the movable groove, the rear end of each clamping block is connected with a headless screw, the rear end of the headless screw is connected with a bolt, and the fixing seat is provided with threaded holes for installing the headless screw and the bolt, just the screw hole runs through the activity groove, the preceding tip of bolt is the polished rod, the upside that the screw hole is lieing in the polished rod is equipped with the shoulder hole that runs through to T type groove, the ladder piece is installed to the shoulder hole internal clearance, the bottom of ladder piece is equipped with one section inclined plane in the one end of keeping away from tight piece of clamp, the top of fixing base is equipped with the step all around, steel pipe connection spare installs at the fixing base top, the hole has been seted up to steel pipe connection spare's lateral wall, be equipped with on the concrete bridge panel and arrange the groove of pouring that the position corresponds with steel pipe connection spare, the medial surface of pouring the groove does not surpass the edge of step.
Preferably, the thickness of the clamping block is not greater than the depth of the movable groove.
More preferably, the headless screw is located between the clamping block and the stepped block.
More preferably, the end face of the step is flush with the upper surface of the steel main beam.
More preferably, the steel pipe connectors are evenly distributed on the steel main beam.
More preferably, the steel main beam is rolled i-steel or welded i-steel.
The construction method of the open-pore steel pipe steel-concrete composite beam bridge structure comprises the following steps:
s1, designing the sizes of the steel pipe connecting pieces and the fixing components according to the engineering requirements, and simultaneously designing the arrangement of the steel pipe connecting pieces on the steel girder;
s2, completing installation and splicing of the fixed assembly and the steel girder in a factory, firstly screwing two headless screws to the inner end of the threaded hole, then installing the two stepped blocks into the stepped hole, then placing the two clamping blocks into the movable groove, penetrating the T-shaped groove on the fixed seat through the end part of the upper wing plate of the steel girder, then moving the T-shaped groove to a specified position along the upper wing plate, then screwing the headless screws to enable the headless screws to push the clamping blocks to draw close inwards, clamping the web plate of the steel girder, then screwing the bolts into the threaded holes to push the rear end of the headless screws, meanwhile, a polished rod at the front end part of the bolts pushes the stepped blocks to move upwards in the moving process, and enabling the stepped blocks to push the lower end of the upper wing plate of the steel girder;
s2, arranging a pouring groove corresponding to the position of the steel pipe connecting piece on the concrete bridge deck;
s3, transporting the steel girder and the concrete bridge deck to a construction site;
and s4, completing the installation and splicing of the steel girder and the concrete bridge deck on site, installing the concrete bridge deck above the steel girder, facing the steel pipe connecting piece and the fixed seat on the steel girder by the pouring groove of the concrete bridge deck, penetrating steel bars into the holes of the steel pipe connecting piece, and pouring concrete in the pouring groove.
Above-mentioned fixed subassembly in trompil steel pipe reinforced concrete composite beam bridge structure, moreover, the steam generator is simple in structure, high durability and convenient installation, press from both sides the web that tight steel girder was pressed from both sides to drawing close inwards through two tight pieces of clamp, and, press from both sides tight piece under the dual function of headless screw and bolt, can guarantee to press from both sides the installation fastness of tight piece, then the polished rod through tip before the bolt is pushing up the ladder piece rebound, make the ladder piece withstand the last pterygoid lamina lower extreme of steel girder, thereby firmly install fixed subassembly on the steel girder, make the steel pipe connecting piece installation firm, and be convenient for install. In addition, the steps around the top of the fixing seat can seal the bottom of the pouring groove, and concrete is prevented from leaking. Moreover, the steel pipe connecting piece is convenient to mount on the steel girder through the fixing assembly, the mounting efficiency of the steel pipe connecting piece can be improved, and the construction efficiency is improved. The open-pore steel pipe and steel concrete composite beam bridge structure completed by the construction method is reliable in connection and firm in installation.
Drawings
FIG. 1 is a perspective view of a bridge construction according to an embodiment of the present invention;
FIG. 2 is a perspective view of the mounting of the fixing assembly to the steel main beam in the embodiment;
FIG. 3 is a sectional view of a fixing assembly in the embodiment;
FIG. 4 is an enlarged view of A in FIG. 3;
FIG. 5 is a sectional view of the fixing base in the embodiment.
In the figure:
1-concrete bridge deck 2-steel pipe connecting piece 2 a-hole
3-steel girder 3 a-upper wing plate 3 b-web plate
4-fixed seat 4 a-step 5-T-shaped groove
6-movable groove 7-clamping block 8-headless screw
9-bolt 9 a-polished rod 10-threaded hole
11, a step hole 12, a step block 13 and a pouring groove.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 1-5, the open-pore steel tube reinforced concrete composite beam bridge structure comprises a concrete bridge deck 1, a steel tube connector 2 and a plurality of steel girders 3, the section of each steel girder 3 is i-shaped, each steel girder 3 comprises an upper wing plate 3a and a web plate 3b, the concrete bridge deck 1 is erected above the steel girder 3, the steel girder 3 is provided with a plurality of fixing components, each fixing component comprises a fixing seat 4, each fixing seat 4 is provided with a T-shaped groove 5 for accommodating the steel girder 3, two sides of a notch at the lower part of the T-shaped groove 5 are respectively provided with a movable groove 6, two clamping blocks 7 are respectively and movably installed in the two movable grooves 6, the two clamping blocks 7 can be close to each other, a part of each clamping block 7 is always positioned in the movable groove 6, the rear end of each clamping block 7 is connected with a headless screw 8, the rear end of the headless screw 8 is connected with a bolt 9, the fixing seat 4 is provided with a threaded hole 10 for installing the headless screw 8 and the bolt 9, and screw hole 10 runs through activity groove 6, the preceding tip of bolt 9 is polished rod 9a, screw hole 10 is equipped with the shoulder hole 11 that runs through to T type groove 5 at the upside that is located polished rod 9a, shoulder block 12 is installed to shoulder hole 11 internal clearance, the bottom of shoulder block 12 is equipped with one section inclined plane in the one end of keeping away from tight piece 7, the top of fixing base 4 is equipped with step 4a all around, steel pipe connection spare 2 is installed at fixing base 4 top, hole 2a has been seted up to the lateral wall of steel pipe connection spare 2, be equipped with on the concrete bridge panel 1 with the steel pipe connection spare 2 range position correspond pour groove 13, the medial surface of pouring groove 13 does not surpass the edge of step 4 a.
Above-mentioned fixed subassembly in trompil steel pipe reinforced concrete composite beam bridge structure, moreover, the steam generator is simple in structure, high durability and convenient installation, press from both sides the web 3b that tight steel girder 3 was pressed from both sides to draw close inwards through two tight piece 7 of clamp, and, press from both sides tight piece 7 under the dual function of headless screw 8 and bolt 9, can guarantee to press from both sides the installation fastness of tight piece 7, then polished rod 9a through bolt 9 preceding tip is pushing up ladder piece 12 and is upwards removing, make ladder piece 12 push up the last pterygoid 3a lower extreme of steel girder 3, thereby firmly install fixed subassembly on steel girder 3, make steel pipe connecting piece 2 install firmly, and be convenient for the installation. In addition, the steps 4a around the top of the fixed seat 4 can seal the bottom of the pouring groove 13, and concrete is prevented from leaking. Moreover, above-mentioned fixed subassembly makes steel pipe connecting piece 2 be convenient for install to steel girder 3 on, can improve steel pipe connecting piece 2's installation effectiveness to improve the efficiency of construction.
The construction method of the open-pore steel pipe steel-concrete composite beam bridge structure comprises the following steps:
s1, designing the sizes of the steel pipe connecting pieces 2 and the fixing components according to the engineering requirements, and simultaneously designing the arrangement of the steel pipe connecting pieces 2 on the steel girder 3;
s2, completing the installation and splicing of the fixing component and the steel girder 3 in the factory, firstly screwing two headless screws 8 to the inner end of a threaded hole 10, then extending two stepped blocks 12 into a T-shaped groove 5, installing the T-shaped groove into a stepped hole 11, then installing two clamping blocks 7 into a movable groove 6, penetrating the T-shaped groove 5 on the fixing seat 4 through the end part of an upper wing plate 3a of the steel girder 3, then moving the T-shaped groove to a specified position along the upper wing plate 3a, then screwing the headless screws 8 to enable the headless screws to push the clamping blocks 7 to close inwards until the clamping blocks 7 clamp a web plate 3b of the steel girder 3, then screwing the bolt 9 into the threaded hole 10, pushing the front end of the headless screws 8 against the rear end of the bolts 9 to prevent the headless screws 8 from moving in the threaded hole 10, and during the moving of the bolt 9, the polished rod 9a at the front end of the bolt 9 firstly contacts the inclined plane at the bottom of the stepped blocks 12, then, the step block 12 is continuously moved towards the plane part at the bottom of the step block 12, so that the step block 12 is supported to move upwards along the step hole 11, the top of the step block is enabled to be propped against the lower end of the upper wing plate 3a of the steel main beam 3, and the plane part at the bottom of the step block 12 is enabled to be propped against the polished rod 9a at the front end part of the bolt 9;
s2, arranging a pouring groove 13 corresponding to the position of the steel pipe connecting piece 2 on the concrete bridge deck 1;
s3, transporting the steel girder 3 and the concrete bridge deck 1 to a construction site;
s4, completing the installation and splicing of the steel girder 3 and the concrete bridge deck 1 on site, installing the concrete bridge deck 1 above the steel girder 3, wherein the pouring groove 13 of the concrete bridge deck 1 is just opposite to the steel pipe connecting piece 2 and the fixed seat 4 on the steel girder 3, at the moment, the step 4a at the top of the fixed seat 4 is tightly attached to the bottom of the concrete bridge deck 1, then the steel bars are penetrated in the hole 2a of the steel pipe connecting piece 2, then the concrete is poured in the pouring groove 13, and the steel pipe connecting piece 2 and the top of the fixed seat 4 are fixed in the pouring groove 13 together.
The open-pore steel pipe reinforced concrete composite beam bridge structure completed by the construction method is reliable in connection and firm in installation.
Wherein, wear to establish the reinforcing bar in the hole 2a of steel pipe connecting piece 2, form the concrete tenon in hole 2a department after the concreting, can resist the raising effect between concrete bridge deck 1 and the steel girder 3 effectively. Furthermore, the step 4a on the top of the fixed seat 4 is closely attached to the bottom of the concrete bridge deck 1, so that the poured concrete can be prevented from leaking. In addition, the steel pipe connecting pieces 2 can be uniformly distributed on the steel girder 3, so that the concrete bridge deck 1 is convenient to be provided with corresponding pouring grooves 13 and is convenient to lay.
In this embodiment, the thickness of the clamping block 7 is not greater than the depth of the movable groove 6, so that when the two clamping blocks 7 are close to each other inwards, more parts can be located in the movable groove 6 to ensure the connection stability of the clamping blocks 7. Meanwhile, when the clamping block 7 is movably mounted in the movable groove 6, the clamping block 7 can be better positioned in the movable groove 6, and the sliding is avoided.
In this embodiment, the headless screw 8 is located between the clamping block 7 and the stepped block 12, so that the headless screw 8 only acts against the clamping block 7 during installation, but does not act against the stepped block 12, thereby facilitating the smooth rod 9a at the front end of the bolt 9 to move up against the stepped block 12 better. Wherein, headless screw 8 may be a headless socket head cap screw.
In this embodiment, as preferred, the terminal surface of step 4a and the upper surface parallel and level of steel girder 3 can play the leak protection effect better, simultaneously for the bottom of concrete decking 1 make the plane can, reduce the processing degree of difficulty of concrete decking 1.
Furthermore, the steel girders 3 may be rolled or welded i-section steel.
Although the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.
Claims (7)
1. Trompil steel pipe reinforced concrete combination beam bridge construction, including concrete decking (1), steel pipe connection spare (2) and multichannel steel girder (3), the cross sectional shape of steel girder (3) is the I shape, steel girder (3) include pterygoid lamina (3 a) and web (3 b), concrete decking (1) erects in steel girder (3) top, its characterized in that: the steel main beam fixing device is characterized in that a plurality of fixing assemblies are arranged on the steel main beam (3), each fixing assembly comprises a fixing seat (4), a T-shaped groove (5) used for loading the steel main beam (3) is formed in each fixing seat (4), a movable groove (6) is formed in each of two sides of a notch in the lower portion of each T-shaped groove (5), two clamping blocks (7) are movably mounted in each movable groove (6) respectively and can be drawn close to each other, one part of each clamping block (7) is located inside each movable groove (6) all the time, a headless screw (8) is connected to the rear end of each clamping block (7), a bolt (9) is connected to the rear end of each headless screw (8), a threaded hole (10) used for mounting the headless screw (8) and the bolt (9) is formed in each fixing seat (4), the threaded hole (10) penetrates through each movable groove (6), and the front end of the bolt (9) is a polished rod (9 a), screw hole (10) are equipped with shoulder hole (11) that run through to T type groove (5) at the upside that lies in polished rod (9 a), ladder piece (12) are installed to shoulder hole (11) inner gap, the bottom of ladder piece (12) is equipped with one section inclined plane in the one end of keeping away from tight piece (7), the top of fixing base (4) is equipped with step (4 a) all around, install at fixing base (4) top steel pipe connecting piece (2), hole (2 a) have been seted up to the lateral wall of steel pipe connecting piece (2), be equipped with on concrete bridge panel (1) and arrange groove (13) of pouring that the position corresponds with steel pipe connecting piece (2), the medial surface of pouring groove (13) does not exceed the edge of step (4 a).
2. The open-pore steel pipe and steel reinforced concrete composite beam bridge structure according to claim 1, wherein: the thickness of the clamping block (7) is not more than the depth of the movable groove (6).
3. The open-pore steel pipe and steel reinforced concrete composite beam bridge structure according to claim 1, wherein: the headless screw (8) is positioned between the clamping block (7) and the stepped block (12).
4. The open-pore steel pipe and steel reinforced concrete composite beam bridge structure according to claim 1, wherein: the end face of the step (4 a) is flush with the upper surface of the steel main beam (3).
5. The open-pore steel pipe and steel reinforced concrete composite beam bridge structure according to claim 1, wherein: the steel pipe connecting pieces (2) are uniformly distributed on the steel main beam (3).
6. The open-pore steel pipe and steel reinforced concrete composite beam bridge structure according to claim 1, wherein: the steel girder (3) is rolled I-shaped steel or welded I-shaped steel.
7. The construction method of the open-pore steel pipe steel-concrete composite beam bridge structure according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
s1, designing the sizes of the steel pipe connecting pieces (2) and the fixing components according to the engineering requirements, and simultaneously designing the arrangement of the steel pipe connecting pieces (2) on the steel girder (3);
s2, completing the installation and splicing of the fixing component and the steel girder (3) in a factory, firstly screwing two headless screws (8) to the inner ends of the threaded holes (10), then two step blocks (12) are arranged in the step hole (11), then two clamping blocks (7) are arranged in the movable groove (6), and the T-shaped groove (5) on the fixed seat (4) passes through the end part of the upper wing plate (3 a) of the steel girder (3) and then moves to a designated position along the upper wing plate (3 a), then the headless screw (8) is screwed down to push the headless screw inwards against the clamping block (7) to clamp the web plate (3 b) of the steel girder (3), then the bolt (9) is screwed into the threaded hole (10) to prop against the rear end of the headless screw (8), meanwhile, a polished rod (9 a) at the front end part of the bolt (9) props against a step block (12) to move upwards in the moving process, so that the step block (12) props against the lower end of an upper wing plate (3 a) of the steel main beam (3);
s2, arranging a pouring groove (13) corresponding to the position of the steel pipe connecting piece (2) on the concrete bridge deck (1);
s3, transporting the steel girder (3) and the concrete bridge deck (1) to a construction site;
s4, completing the installation and splicing of the steel girder (3) and the concrete bridge deck (1) on site, installing the concrete bridge deck (1) above the steel girder (3), wherein the pouring groove (13) of the concrete bridge deck (1) is just opposite to the steel pipe connecting piece (2) and the fixed seat (4) on the steel girder (3), penetrating steel bars into the hole (2 a) of the steel pipe connecting piece (2), and pouring concrete in the pouring groove (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110139852.9A CN112813827B (en) | 2021-02-02 | 2021-02-02 | Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110139852.9A CN112813827B (en) | 2021-02-02 | 2021-02-02 | Open-hole steel pipe and steel concrete combined beam bridge structure and construction method thereof |
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| CN112813827A CN112813827A (en) | 2021-05-18 |
| CN112813827B true CN112813827B (en) | 2022-04-22 |
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| CN106677063A (en) * | 2017-02-16 | 2017-05-17 | 安徽昌宁新材料有限公司 | Combined structure of joist bridge plate of steel trestle |
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| CN110469052A (en) * | 2019-08-20 | 2019-11-19 | 北京市政路桥管理养护集团有限公司 | Steel-concrete composite beam connector, steel-concrete composite beam and manufacturing method |
| KR102050730B1 (en) * | 2019-06-26 | 2019-12-03 | 지엘기술 주식회사 | Temporary bridge with varying section girder and continuous lining board |
| CN112282207A (en) * | 2020-10-19 | 2021-01-29 | 中铁第四勘察设计院集团有限公司 | Combined beam, spliced beam and subway station |
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2021
- 2021-02-02 CN CN202110139852.9A patent/CN112813827B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203768810U (en) * | 2014-03-07 | 2014-08-13 | 天津城建大学 | Prefabricated bridge deck space steel pipe concrete truss combined beam |
| CN105803939A (en) * | 2016-04-27 | 2016-07-27 | 长安大学 | Open steel tube and reinforced-concrete combined girder bridge structure |
| CN106677063A (en) * | 2017-02-16 | 2017-05-17 | 安徽昌宁新材料有限公司 | Combined structure of joist bridge plate of steel trestle |
| CN110067182A (en) * | 2019-04-17 | 2019-07-30 | 宁波舜通集团有限公司 | A kind of assembled steel reinforced concrete composite bridge and preparation method thereof of T-bolt connection |
| KR102050730B1 (en) * | 2019-06-26 | 2019-12-03 | 지엘기술 주식회사 | Temporary bridge with varying section girder and continuous lining board |
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