CN202730632U - Steel pipe and concrete combined truss bridge - Google Patents
Steel pipe and concrete combined truss bridge Download PDFInfo
- Publication number
- CN202730632U CN202730632U CN 201220404242 CN201220404242U CN202730632U CN 202730632 U CN202730632 U CN 202730632U CN 201220404242 CN201220404242 CN 201220404242 CN 201220404242 U CN201220404242 U CN 201220404242U CN 202730632 U CN202730632 U CN 202730632U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 100
- 239000010959 steel Substances 0.000 title claims abstract description 100
- 239000002131 composite material Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 6
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract 3
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a steel pipe and concrete combined truss bridge. The combined truss bridge comprises piers at two ends, a bridge panel, two upper parallel chord members and two lower parallel chord members, wherein the upper chord members and the lower chord members which vertically correspond to each other are connected through uniformly distributed web members which are sequentially connected in a W shape; parallel connecting steel plates are arranged at the peripheries of two web members at the joints of the lower chord members of the combined truss bridge; reinforcing ribs connected with the upper surfaces of the connecting steel plates are uniformly distributed at the periphery of each web member; vertical reinforcing steel plates in vertically downward state are uniformly distributed on the lower surfaces of the connecting steel plates, and positioned at the lower chord members; steel beam holes are uniformly formed in each vertical reinforcing steel plate; and longitudinal prestressing steel beams of the lower chord members pass through the steel beam holes in the vertical reinforcing steel plates. Compared with a conventional connecting joint of steel rod and concrete plate, the steel pipe concrete combined truss bridge is more reliable in connecting, and the joint is simply manufactured and convenient to construct.
Description
Technical field
The utility model belongs to the bridge technology field, is specifically related to concrete filled steel tube composite roof truss bridge.
Background technology
Concrete filled steel tube composite roof truss bridge takes full advantage of pull resistance and the concrete crushing resistance of steel, the separately stack of performance of material above 2 kinds of performance after the combination, be to guarantee the composite behaviour of steel pipe web member and concrete lower chord, must be on bonding surface favorably situated node.The perforated panel connector is the connector that is connected with concrete as steel rod elements in the steel plate insertion concrete of punching, be one of steel rod elements and concrete connected node connector form commonly used, because the perforated panel connector has plurality of advantages: 1, perforate processing is simple on the steel plate; 2, shear stiffness is larger, further increases after in circular hole shear reinforcement being set; 3, rely on the concrete in the circular hole to resist active force between Steel concrete, its final destruction is concrete shear failure in the hole, and does not have fatigue problem.Therefore steel rod elements and concrete connected node adopt the perforated panel connector more, concrete filled steel tube composite roof truss bridge lower chord node is important Force transmission parts, is bearing the important task that connects web member, lower chord, and enough shear stiffnesses must be arranged.The existing node that adopts the perforated panel connector, two kinds of forms are generally speaking arranged: a kind of is that the steel member directly is connected with the perforate connector, and another kind is by junction steel plate the steel member to be connected with the perforate connector.The former is because the perforated panel connector is a flat plate, and the joint face of connection in parallel is little for steel pipe, has limited its concatenation ability; The latter often adopts the polylith open pore steel plate, the perforated panel connector is arranged in parallel or forms behind the steel lattice chamber to be connected with junction steel plate again to be connected with steel rod elements, then the intensity of junction steel plate self is had higher requirement.
The utility model content
For further anti-shear ability, the resistance to plucking ability that improves the lower chord Nodes of concrete filled steel tube composite roof truss bridge, the utility model provides a kind of concrete filled steel tube composite roof truss bridge.
A kind of concrete filled steel tube composite roof truss bridge comprises bridge pier 4, the bridge deck 6 at two ends, two parallel upper chords 2 and two parallel lower chords 5; Connected by uniform web member 3 between corresponding upper chord 2 and the lower chord 5 up and down, uniform web member 3 is W shape and connects successively, and namely the lower end of a web member is corresponding with the lower end of the adjacent web member in left side, and the upper end is corresponding with the upper end of the adjacent web member in right side; Be connected to form the lower chord node by gusset plate 7 between adjacent two web members 3 and the lower chord 5; Be applied in adjacent two web members 3 in the middle of the top of gusset plate 7, the bottom is positioned at lower chord 5, and the uniform reinforced hole that offers in the bottom of gusset plate 7 is provided with shear reinforcement 11 in the reinforced hole, also comprise the lower chord longitudinal prestressing steel bundle 15 more than two; It is characterized in that: the lower chord Nodes, the periphery of two web members is provided with the junction steel plate 8 of level, the periphery of every web member is laid with the stiffening rib 10 that is connected with the upper surface of junction steel plate 8, the soffit of junction steel plate 8 is laid with the steel plate 9 of vertically putting more energy into vertically downward, the described steel plate 9 of vertically putting more energy into is positioned at lower chord 5, the uniform steel beam hole that offers on the every block of steel plate 9 of vertically putting more energy into, the steel beam hole that lower chord longitudinal prestressing steel bundle 15 passes on the steel plate 9 of vertically putting more energy into.
The soffit of described junction steel plate 8 is uniform to be welded to connect four blocks of steel plates 9 of vertically putting more energy into vertically downward, uniformly on the every block of steel plate 9 of vertically putting more energy into offer four steel beam holes, four lower chord longitudinal prestressing steel bundles 15 pass respectively four steel beam holes on the steel plate 9 of vertically putting more energy into.
Useful technique effect of the present utility model embodies in the following areas:
1, the lower chord node of a kind of concrete filled steel tube composite roof truss of the utility model bridge, gusset plate is the perforated panel connector, be installed with shear reinforcement in the preformed hole, has very strong shear resistance, the setting of steel plate of putting more energy into has not only strengthened the shear resistance of node, and the steel plate of putting more energy into is connected as a single entity gusset plate and junction steel plate, can prevent the distortion of junction steel plate tension;
2, the lower chord node of a kind of concrete filled steel tube composite roof truss of the utility model bridge, put more energy into and open preformed hole on the steel plate, can allow lower chord plain bars or prestressed strand pass through at Nodes, can prevent that also steel plate from cutting apart concrete, increase concrete globality, concrete in the hole has very large dowel action simultaneously, increases the resistance to plucking ability of node in concrete;
3, the lower chord node of a kind of concrete filled steel tube composite roof truss of the utility model bridge, around web member, be provided with stiffening rib, vertical fillet welding is connected with the junction steel plate upper surface with the web member side for it, has strengthened the lateral stability of web member, has reduced simultaneously the stress of web member and gusset plate weld seam;
4, the lower chord node of a kind of concrete filled steel tube composite roof truss of the utility model bridge is compared with the concrete slab connected node with the conventional steel rod member, connect more reliable, and the simple structure of node, convenient construction.
Description of drawings
Fig. 1 is concrete filled steel tube composite roof truss bridge elevation.
Fig. 2 is the I-I view of Fig. 1.
Fig. 3 is the partial enlarged drawing among Fig. 2.
Fig. 4 is the sectional view of Fig. 3.
Sequence number among the upper figure: upper chord 2, web member 3, bridge pier 4, lower chord 5, bridge deck 6, gusset plate 7, junction steel plate 8, vertically put more energy into steel plate 9, stiffening rib 10, shear reinforcement 11, web member stiffening ring 12, lower chord longitudinal prestressing steel bundle 15.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of concrete filled steel tube composite roof truss bridge comprises bridge pier 4, the bridge deck 6 at two ends, two parallel upper chords 2 and two parallel lower chords 5; Connected by uniform web member 3 between corresponding upper chord 2 and the lower chord 5 up and down, uniform web member 3 is W shape and connects successively, and namely the lower end of a web member is corresponding with the lower end of the adjacent web member in left side, and the upper end is corresponding with the upper end of the adjacent web member in right side; Be connected to form the lower chord node by gusset plate 7 between adjacent two web members 3 and the lower chord 5; Referring to Fig. 3 and Fig. 4, be applied in adjacent two web members 3 in the middle of the top of gusset plate 7, the bottom is positioned at lower chord 5, the uniform reinforced hole that offers in the bottom of gusset plate 7, be provided with shear reinforcement 11 in the reinforced hole, also comprise the lower chord longitudinal prestressing steel bundle 15 more than two.The lower chord Nodes, the periphery of two web members is being welded to connect the junction steel plate 8 of level, the uniform stiffening rib 10 that is connected with the upper surface of junction steel plate 8 that is welded with of the periphery of every web member, the soffit of junction steel plate 8 is being welded to connect four blocks of steel plates 9 of vertically putting more energy into vertically downward, the steel plate 9 of vertically putting more energy into is positioned at lower chord 5, uniform four steel beam holes, four steel beam holes that lower chord longitudinal prestressing steel bundle 15 passes on the steel plate 9 of vertically putting more energy into of offering on the every block of steel plate 9 of vertically putting more energy into.
Claims (2)
1. concrete filled steel tube composite roof truss bridge comprises bridge pier (4), bridge deck (6), two parallel upper chords (2) and two parallel lower chords (5) at two ends; Connected by uniform web member (3) between corresponding upper chord (2) and the lower chord (5) up and down, uniform web member (3) is W shape and connects successively, namely the lower end of a web member is corresponding with the lower end of the adjacent web member in left side, and the upper end is corresponding with the upper end of the adjacent web member in right side; Be connected to form the lower chord node by gusset plate (7) between adjacent two web members (3) and the lower chord (5); Be applied in adjacent two web members (3) in the middle of the top of gusset plate (7), the bottom is positioned at lower chord (5), the uniform reinforced hole that offers in the bottom of gusset plate (7) is provided with shear reinforcement (11) in the reinforced hole, also comprise the lower chord longitudinal prestressing steel bundle (15) more than two; It is characterized in that: the lower chord Nodes, the periphery of two web members is provided with the junction steel plate (8) of level, the periphery of every web member is laid with the stiffening rib (10) that is connected with the upper surface of junction steel plate (8), the soffit of junction steel plate (8) is laid with the steel plate of vertically putting more energy into (9) vertically downward, the described steel plate (9) of vertically putting more energy into is positioned at lower chord (5), the every upper uniform steel beam hole that offers of the steel plate (9) of vertically putting more energy into, lower chord longitudinal prestressing steel bundle (15) passes the steel beam hole on the steel plate of vertically putting more energy into (9).
2. a kind of concrete filled steel tube composite roof truss bridge according to claim 1, it is characterized in that: the soffit of described junction steel plate (8) is uniform to be welded to connect four blocks of steel plates of vertically putting more energy into (9) vertically downward, every upper uniform four the steel beam holes that offer of the steel plate (9) of vertically putting more energy into, four lower chord longitudinal prestressing steel bundles (15) pass respectively four steel beam holes on the steel plate (9) of vertically putting more energy into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404242 CN202730632U (en) | 2012-08-16 | 2012-08-16 | Steel pipe and concrete combined truss bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220404242 CN202730632U (en) | 2012-08-16 | 2012-08-16 | Steel pipe and concrete combined truss bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202730632U true CN202730632U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220404242 Expired - Fee Related CN202730632U (en) | 2012-08-16 | 2012-08-16 | Steel pipe and concrete combined truss bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202730632U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776829A (en) * | 2012-08-16 | 2012-11-14 | 安徽省交通规划设计研究院有限公司 | Steel pipe concrete combined truss bridge |
| CN105908846A (en) * | 2016-06-22 | 2016-08-31 | 四川省交通运输厅公路规划勘察设计研究院 | H-shaped stiffening rib structure for prolonging service life of steel pipe concrete tubular joint |
| CN109763567A (en) * | 2018-03-13 | 2019-05-17 | 王维奇 | One kind, which has, stablizes prestressed structural unit body and its application and preparation method thereof |
-
2012
- 2012-08-16 CN CN 201220404242 patent/CN202730632U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776829A (en) * | 2012-08-16 | 2012-11-14 | 安徽省交通规划设计研究院有限公司 | Steel pipe concrete combined truss bridge |
| CN105908846A (en) * | 2016-06-22 | 2016-08-31 | 四川省交通运输厅公路规划勘察设计研究院 | H-shaped stiffening rib structure for prolonging service life of steel pipe concrete tubular joint |
| CN105908846B (en) * | 2016-06-22 | 2019-01-22 | 四川省交通运输厅公路规划勘察设计研究院 | A kind of H-type stiffening rib structure improving the concrete filled steel tube tubular joint service life |
| CN109763567A (en) * | 2018-03-13 | 2019-05-17 | 王维奇 | One kind, which has, stablizes prestressed structural unit body and its application and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ANHUI TRANSPORT CONSULTING + DESIGN INSTITUTE CO., Free format text: FORMER NAME: ANHUI TRANSPORT CONSULTING + DESIGN INSTITUTE LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230088 Hefei high tech Zone, Anhui camphor Road, No. 180 Patentee after: ANHUI TRANSPORT CONSULTING & DESIGN INSTITUTE Co.,Ltd. Address before: 230088 Hefei high tech Zone, Anhui camphor Road, No. 180 Patentee before: ANHUI TRANSPORT CONSULTING & DESIGN INSTITUTE Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20210816 |
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| CF01 | Termination of patent right due to non-payment of annual fee |