CN204662235U - A kind of steel plate combination T beam bridge - Google Patents

A kind of steel plate combination T beam bridge Download PDF

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Publication number
CN204662235U
CN204662235U CN201520321389.XU CN201520321389U CN204662235U CN 204662235 U CN204662235 U CN 204662235U CN 201520321389 U CN201520321389 U CN 201520321389U CN 204662235 U CN204662235 U CN 204662235U
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CN
China
Prior art keywords
supported
freely
girder
bridge
steel plate
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CN201520321389.XU
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Chinese (zh)
Inventor
杨大海
胡可
余振
曹光伦
徐宏光
吴志刚
杨善红
唐国喜
Original Assignee
安徽省交通规划设计研究总院股份有限公司
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Priority to CN201520321389.XU priority Critical patent/CN204662235U/en
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Publication of CN204662235U publication Critical patent/CN204662235U/en

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Abstract

The utility model relates to a kind of prefabrication and assembly construction abbreviation and props up steel plate combination T beam bridge, comprises freely-supported side bar, freely-supported middle girder, bridge floor etc., is arranged on the bearing of pier cap beam by the freely-supported side bar on freely-supported middle girder and both sides by lateral connection, and end face lays bridge floor.The bottom of freely-supported side bar and freely-supported middle girder is provided with i shaped steel plate-girder, and top is provided with the concrete flange plate extended to horizontal direction, establishes steel flanged beam end diaphragm between the both ends of the surface bottom i shaped steel plate-girder of freely-supported side bar and freely-supported middle girder; The bottom i shaped steel plate-girder of freely-supported side bar and freely-supported middle girder uniform gooseneck longitudinally and between adjacent beams.Useful technique effect: the utility model is clearly stressed, steel tension, concrete compression, can give full play to the respective advantage of bi-material.Compared with conventional steel plates composite beam bridge, can work progress be simplified, improve efficiency of construction, reduce the impact of construction on surrounding environment.

Description

A kind of steel plate combination T beam bridge

Technical field

The utility model belongs to bridge construction technical field, particularly relates to steel-concrete composite beam bridge, is a kind of steel plate combination T beam bridge specifically.

Background technology

In highway (containing speedway, Class I highway and low-grade highway) and town road, Short/Medium Span Bridge adopts prefabrication and assembly construction concrete structure usually, traditional prefabrication and assembly construction structure has prestressed concrete small box girder, PC T beam and prefabricated concrete hollow slab etc., it is simple that these precast constructions have prefabricated construction, easily realize standardization and shop, cost is low, lifts the advantages such as easy, is therefore widely adopted in highway engineering.But this class formation is subject to the restriction of the factor such as material technology, construction technology, engineering disease is very outstanding for a long time, and prestressed concrete small box girder Major Diseases has: 1. girder web plate diagonal crack; 2. the longitudinal crack of web and top board joint; 3. bridge deck wet the longitudinal crack that seam goes out; PC T beam Major Diseases has: 1. girder web plate exists diagonal crack; 2. diaphragm joint destroys; 3. longitudinal crack is sewed with along T beam hinge; Prefabricated concrete hollow slab Major Diseases has: 1. ftracture along hinge seam, peel off between precast hollow slab; 2. seat empty; 3. internal mold is according to air bag, and air bag easily floats and causes top board excessively thin; Internal mold is according to steel core die, and due to hollow slab beam height, the steel core die demoulding is difficult.

Disease causes later stage pipe expense of supporting to remain high, namely most prefabrication and assembly construction concrete structure beam bridge will carry out maintenance and reinforcement after operation more than ten years, along with the continuous minimizing of natural resource and labor cost rise day by day, traditional concrete-bridge is difficult to meet that transport development continues, sound development needs.

Steel plate combination beam bridge is a kind of traditional steel-mixed combining structure, and its main supporting member adopts steel work, and bridge deck adopts concrete slab, is combined as a whole cleverly by Steel concrete bi-material, at home and abroad has at present and apply comparatively widely.Conventional steel plates composite beam bridge, most employing is first constructed girder steel then the way of bridge deck of constructing: bridge deck or be precast block lifting, and then cast in situs forms overall bridge deck to wet seam in length and breadth; Be the girder steel of first constructing be masterplate, cast-in-situ concrete bridge deck.These two kinds of way site work amounts are all comparatively large, and work progress is more loaded down with trivial details, is unfavorable for realizing prefabrication and assembly construction, batch production, standardized construction.

Utility model content

In order to simplify the construction of conventional steel plates composite beam bridge, overcome the disease of traditional prefabrication and assembly construction concrete structure beam bridge, the utility model provides a kind of prefabrication and assembly construction abbreviation to prop up steel plate combination T beam bridge replacement conventional steel plates composite beam bridge and prefabrication and assembly construction concrete structure beam bridge.

A kind of steel plate combination T beam bridge, comprises the freely-supported middle girder of bridge floor 11, guardrail, 2 freely-supported side bars and more than 2; Wherein, freely-supported middle girder is arranged together in parallel to each other, forms freely-supported middle girder assembly; Described freely-supported middle girder is similar to T-shaped; A freely-supported side bar is respectively connected with on the both sides of freely-supported middle girder assembly; Described freely-supported side bar is similar to T-shaped; One deck bridge floor 11 is jointly equipped with at the top of freely-supported middle girder assembly and freely-supported side bar; Guardrail is provided with in the both sides of bridge floor 11.

Advantageous Effects of the present utility model is:

The utility model is the improvement to traditional precast concrete T-beam bridge, cancels concrete web and web prestressing force, replaces steel web, retains concrete roof, and simultaneously prefabricated with steel web.With conventional concrete Precast T-Beam bridge ratio, there is lifting lightweight, assembling is simple, and (lateral ties adopt welding, eliminate the concrete cast-in-situ crossbeam (diaphragm) of conventional concrete Precast T-Beam bridge, really achieve assemblingization, batch production), overcome conventional concrete Precast T-Beam bridge cracking in webs, the flimsy shortcoming of lateral ties.Especially following aspect is shown:

1, the utility model prefabrication and assembly construction abbreviation props up steel plate combination T beam bridge, compared with prefabrication and assembly construction concrete structure, can overcome cracking in webs, the flimsy shortcoming of lateral ties; Compared with conventional steel plates composite beam bridge, can work progress be simplified, improve efficiency of construction, above two kinds of bridge types can be substituted, applied in region of no relief highway bridge and municipal bridge.

2, the utility model prefabrication and assembly construction abbreviation props up steel plate combination T beam bridge, main beam stress structure adopts steel work, and top bridge deck adopt precast construction, can realize the prefabrication and assembly construction of bridge construction, batch production, standardization, reduction of erection time, reduce the impact of construction on surrounding environment.

3, the utility model prefabrication and assembly construction abbreviation props up steel plate combination T beam bridge, and adopt freely supported structure, clearly stressed, steel tension, concrete compression, can give full play to the respective advantage of bi-material.

4, the utility model prefabrication and assembly construction abbreviation props up steel plate combination T beam bridge two ends and respectively establishes a bearing, solves some prefabrication and assembly construction concrete structure two ends and respectively establishes two bearings to cause the problem of seat empty (being difficult to be in same plane in four bearing constructions).

5, the utility model prefabrication and assembly construction abbreviation props up steel plate combination T beam bridge, and the deadweight of monolithic beam is comparatively light, is convenient to lifting construction.

Accompanying drawing explanation

Fig. 1 is span centre standard cross-section schematic diagram of the present utility model.

Fig. 2 is bearing standard cross-section schematic diagram of the present utility model.

Fig. 3 is the schematic perspective view of the bottom i shaped steel plate-girder 1 of the utility model freely-supported side bar and freely-supported middle girder.

Fig. 4 is bottom i shaped steel plate-girder 1 and the top concrete flange plate 8 of the utility model freely-supported side bar.

Fig. 5 is bottom i shaped steel plate-girder 1 and the top concrete flange plate 9 of the utility model freely-supported middle girder.

Fig. 6 is the schematic perspective view of gooseneck 14 in Fig. 1.

Fig. 7 is the schematic perspective view of Fig. 2 middle-end diaphragm 15.

Detailed description of the invention

Below in conjunction with accompanying drawing and concrete implement that the present invention is described in further detail.

See Fig. 1, a kind of steel plate combination T beam bridge, comprises the freely-supported middle girder of bridge floor 11, guardrail, 2 freely-supported side bars and more than 2; Wherein, freely-supported middle girder is arranged together in parallel to each other, forms freely-supported middle girder assembly; Described freely-supported middle girder is similar to T-shaped; A freely-supported side bar is respectively connected with on the both sides of freely-supported middle girder assembly; Described freely-supported side bar is similar to T-shaped; One deck bridge floor 11 is jointly equipped with at the top of freely-supported middle girder assembly and freely-supported side bar; Guardrail is provided with in the both sides of bridge floor 11.

Furtherly, described guardrail is wall-steel guard rail or corrugated beam barrier.

Furtherly, when this steel plate combination T beam bridge is arranged near route center line, the guardrail near route center line side is corrugated beam barrier, and the guardrail away from route center line side is wall-steel guard rail.

See Fig. 5, freely-supported middle girder is made up of freely-supported middle girder top concrete slab 9 and I-steel plate-girder 1; Wherein, freely-supported middle girder top concrete slab 9 is the long slab of cross section in " one " shape; In other words, the length direction of the concrete flange plate Yan Qiao on the top of freely-supported middle girder extends, and the top concrete flange plate of freely-supported middle girder and bottom i shaped steel plate-girder form the freely-supported middle girder cross-sectional configuration of " T " by shear connector;

See Fig. 4, freely-supported side bar is made up of freely-supported side bar top concrete slab 8 and I-steel plate-girder 1; Wherein, freely-supported side bar top concrete slab 8 is the long slab of cross section in " one " shape.

See Fig. 3, I-steel plate-girder 1 comprises bottom wing listrium 2, longitudinal steel web 3, top flange plate 4, socket cap weldering nail 7; Wherein, bottom wing listrium 2, longitudinal steel web 3, top flange plate 4 are long slab; Longitudinal steel web 3 is vertically placed, and extends along the length direction of this T beam bridge; The top flange plate 4 of horizontal positioned and the bottom wing listrium 2 of horizontal positioned is respectively equipped with at steel plate combination T beam bridge upper/lower terminal; Socket cap weldering nail 7 is provided with at the top of top flange plate 4.

Furtherly, see Fig. 3, the sidewall of longitudinal steel web 3 is provided with 1 longitudinal stiffener 5 near upper end; The sidewall of longitudinal steel web 3 is evenly provided with vertical stiffening rib 6.

Furtherly, see Fig. 3, socket cap weldering nail 7 arrangement in matrix.Preferred scheme is, the rectangular permutation arrangement of socket cap weldering nail 7, forms socket cap weldering nail group; Described socket cap weldering nail 7 extends in freely-supported side bar top concrete slab 8 or freely-supported middle girder top concrete slab 9.

See Fig. 1 or Fig. 2, between adjacent freely-supported side bar and freely-supported middle girder and between adjacent freely-supported middle girder and freely-supported middle girder, be provided with wet seam 10 between plate; Concrete is filled with in wet seam 10 between described plate.Namely the concrete flange plate on freely-supported middle girder top is connected with the wing plate of adjacent beams by the cast-in-situ concrete mode of seam that wets; The concrete flange plate on freely-supported side bar top is connected with the wing plate of adjacent beams by the cast-in-situ concrete seam that wets.

See Fig. 1, between adjacent freely-supported side bar and freely-supported middle girder and between adjacent freely-supported middle girder and freely-supported middle girder, be provided with span centre gooseneck 14; Described span centre gooseneck 14 is horizontally disposed steel plate; By span centre gooseneck 14, adjacent freely-supported side bar and freely-supported middle girder or adjacent freely-supported middle girder and freely-supported middle girder are linked together.

See Fig. 2, described freely-supported side bar, freely-supported middle girder all comprise steel flanged beam end diaphragm 15; Wherein, 1 steel flanged beam diaphragm 15 is provided with in the bottom of the freely-supported side bar top concrete slab 8 near freely-supported middle girder side; 1 steel flanged beam end diaphragm 15 is respectively provided with in the bottom of the freely-supported middle girder top concrete slab 9 of I-steel plate-girder 1 both sides.

Furtherly, the i shaped steel plate-girder of described freely-supported side bar and freely-supported middle girder adopts Welder's font section of steel plate; According to stressing conditions adjustment steel plate thickness.

Furtherly, the cross section of described gooseneck 14 is I-shaped, along bridge longitudinally uniform layout; Welding procedure is adopted to be connected between gooseneck 14 with the steel web of steel girder 1.

Furtherly, described freely-supported side bar and freely-supported middle girder bottom are steel beam column, and top is reinforced concrete precast member.

Furtherly, it is system of simple supporting that described prefabrication and assembly construction abbreviation props up steel plate combination T beam bridge.

Claims (10)

1. a steel plate combination T beam bridge, is characterized in that: the freely-supported middle girder comprising bridge floor (11), guardrail, 2 freely-supported side bars and more than 2; Wherein, freely-supported middle girder is arranged together in parallel to each other, forms freely-supported middle girder assembly; Described freely-supported middle girder is similar to T-shaped; A freely-supported side bar is respectively connected with on the both sides of freely-supported middle girder assembly; Described freely-supported side bar is similar to T-shaped; One deck bridge floor (11) is jointly equipped with at the top of freely-supported middle girder assembly and freely-supported side bar; Guardrail is provided with in the both sides of bridge floor (11).
2. a kind of steel plate combination T beam bridge according to claim 1, is characterized in that: described guardrail is wall-steel guard rail or corrugated beam barrier.
3. a kind of steel plate combination T beam bridge according to claim 2, it is characterized in that: when this steel plate combination T beam bridge is arranged near route center line, guardrail near route center line side is corrugated beam barrier, and the guardrail away from route center line side is wall-steel guard rail.
4. a kind of steel plate combination T beam bridge according to claim 1, is characterized in that: freely-supported middle girder is made up of freely-supported middle girder top concrete slab (9) and I-steel plate-girder (1); Wherein, freely-supported middle girder top concrete slab (9) is the long slab of cross section in " one " shape;
Freely-supported side bar is made up of freely-supported side bar top concrete slab (8) and I-steel plate-girder (1); Wherein, freely-supported side bar top concrete slab (8) is the long slab of cross section in " one " shape.
5. a kind of steel plate combination T beam bridge according to claim 4, is characterized in that: I-steel plate-girder (1) comprises bottom wing listrium (2), longitudinal steel web (3), top flange plate (4), socket cap weldering nail (7); Wherein, bottom wing listrium (2), longitudinal steel web (3), top flange plate (4) are long slab; Longitudinal steel web (3) is vertically placed, and extends along the length direction of this T beam bridge; The top flange plate (4) of horizontal positioned and the bottom wing listrium (2) of horizontal positioned is respectively equipped with at steel plate combination T beam bridge upper/lower terminal; Socket cap weldering nail (7) is provided with at the top of top flange plate (4).
6. a kind of steel plate combination T beam bridge according to claim 5, is characterized in that: on the sidewall of longitudinal steel web (3), be provided with 1 longitudinal stiffener (5) near upper end; The sidewall of longitudinal steel web (3) is evenly provided with vertical stiffening rib (6).
7. a kind of steel plate combination T beam bridge according to claim 5, is characterized in that: socket cap weldering nail (7) arranges in matrix.
8. a kind of steel plate combination T beam bridge according to claim 1, is characterized in that: be provided with wet seam (10) between plate between adjacent freely-supported side bar and freely-supported middle girder and between adjacent freely-supported middle girder and freely-supported middle girder; Concrete is filled with in wet seam (10) between described plate.
9. a kind of steel plate combination T beam bridge according to claim 1, is characterized in that: between adjacent freely-supported side bar and freely-supported middle girder and between adjacent freely-supported middle girder and freely-supported middle girder, be provided with span centre gooseneck (14); Described span centre gooseneck (14) is horizontally disposed steel plate; By span centre gooseneck (14), adjacent freely-supported side bar and freely-supported middle girder or adjacent freely-supported middle girder and freely-supported middle girder are linked together.
10. a kind of steel plate combination T beam bridge according to claim 4, is characterized in that: described freely-supported side bar, freely-supported middle girder all comprise steel flanged beam diaphragm (15); Wherein, 1 steel flanged beam end diaphragm (15) is provided with in the bottom on freely-supported side bar top concrete slab (8) near freely-supported middle girder side; 1 steel flanged beam end diaphragm (15) is respectively provided with in the bottom on freely-supported middle girder top concrete slab (9) of I-steel plate-girder (1) both sides.
CN201520321389.XU 2015-05-19 2015-05-19 A kind of steel plate combination T beam bridge CN204662235U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951613A (en) * 2016-07-11 2016-09-21 北京市市政工程研究院 Combined type pre-stress steel cross diaphragm beam, reinforcing system and reinforcing method thereof
CN106012791A (en) * 2016-07-14 2016-10-12 湖南联智桥隧技术有限公司 Three-span antinode I-shaped beam-transverse wave-three-steel and concrete combined T-shaped continuous beam
CN106677051A (en) * 2017-03-14 2017-05-17 四川省交通运输厅公路规划勘察设计研究院 Steel box plate-girder mixed bridge suitable for mountainous conditions
CN107227694A (en) * 2017-07-27 2017-10-03 长安大学 A kind of concrete-bridge transversely strengthening construction
CN108166394A (en) * 2017-12-25 2018-06-15 中交路桥华南工程有限公司 Overlap girder segment and its pre-assembly method
CN108342973A (en) * 2018-02-14 2018-07-31 重庆交通大学 Whole H profile steel-concrete composite beam bridge and construction method across prefabricated installation

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105951613A (en) * 2016-07-11 2016-09-21 北京市市政工程研究院 Combined type pre-stress steel cross diaphragm beam, reinforcing system and reinforcing method thereof
CN106012791A (en) * 2016-07-14 2016-10-12 湖南联智桥隧技术有限公司 Three-span antinode I-shaped beam-transverse wave-three-steel and concrete combined T-shaped continuous beam
CN106677051A (en) * 2017-03-14 2017-05-17 四川省交通运输厅公路规划勘察设计研究院 Steel box plate-girder mixed bridge suitable for mountainous conditions
CN106677051B (en) * 2017-03-14 2019-08-16 四川省交通运输厅公路规划勘察设计研究院 A kind of steel boxboard beam mixing beam bridge suitable for mountain area condition
CN107227694A (en) * 2017-07-27 2017-10-03 长安大学 A kind of concrete-bridge transversely strengthening construction
CN108166394A (en) * 2017-12-25 2018-06-15 中交路桥华南工程有限公司 Overlap girder segment and its pre-assembly method
CN108342973A (en) * 2018-02-14 2018-07-31 重庆交通大学 Whole H profile steel-concrete composite beam bridge and construction method across prefabricated installation

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Address after: 230088 Hefei high tech Zone, Anhui camphor Road, No. 180

Patentee after: ANHUI TRAFFIC PLANNING AND DESIGN INSTITUTE CO., LTD.

Address before: 230088, No. 180, Central Avenue, Hefei hi tech Zone, Anhui

Patentee before: ANHUI TRAFFIC PLANNING AND DESIGN INSTITUTE CO., LTD.