CN220013339U - Green road steel structure bridge suitable for mountain area canyon highway - Google Patents
Green road steel structure bridge suitable for mountain area canyon highway Download PDFInfo
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- CN220013339U CN220013339U CN202320083174.3U CN202320083174U CN220013339U CN 220013339 U CN220013339 U CN 220013339U CN 202320083174 U CN202320083174 U CN 202320083174U CN 220013339 U CN220013339 U CN 220013339U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 122
- 239000010959 steel Substances 0.000 title claims abstract description 122
- 238000010276 construction Methods 0.000 claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 238000012994 industrial processing Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 229920003225 polyurethane elastomer Polymers 0.000 abstract description 3
- 238000012876 topography Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a green road steel structure bridge suitable for mountain canyon roads, which comprises an upper structure and a lower structure. The upper structure comprises a steel top plate, a steel top plate longitudinal stiffening rib, a diaphragm plate, stiffening steel longitudinal beams, a lower flange and a longitudinal steel stop block which form an n-shaped steel plate girder structure together, and a polyurethane elastomer filling structure is arranged between upper structure hole spans to ensure the continuity of the bridge deck. The lower structure is formed by flexibly combining a capping beam, a single column pier, a pile foundation and an enlarged foundation according to the geological conditions of bridge span terrain. The green road steel structure bridge applicable to mountain canyon roads is a green road steel structure bridge which is safe and reliable in structure, convenient for industrial processing, short in construction period, excellent in economy and small in disturbance to natural environment; the upper pi-shaped steel plate beam bears crowd load and bicycle load, and the lower single column pier is a supporting force transmission structure, so that constant load of the pi-shaped steel plate beam and live load of crowd, bicycles and the like are transmitted into the foundation.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a green road steel structure bridge suitable for mountain canyon roads.
Background
As an important component of a modern bridge structure, the steel structure bridge has the characteristics of light dead weight, definite mechanical property of materials, high quality reliability, good durability, easy industrial processing, high construction speed, short construction period, energy conservation, environmental protection and the like. The popularization of the steel structure bridge is a realistic requirement of the current economic form of China, and is also an important development opportunity for accelerating the pushing of the steel structure bridge. The development of the green road steel structure bridge suitable for the mountain canyon beautiful highway accords with the development trend of the steel structure bridge.
The mountain canyon road is built by reconstruction and expansion of beautiful roads along mountain canyon roads, so that a matched along green road slow-running system is built, on one hand, local natural travel resources can be developed, and on the other hand, the mountain canyon road has important significance for promoting village vibration. However, the mountain canyon beautiful highway often needs to be provided with bridge to span the topography environment such as gully and river, and the same green road bridge structure needs to be provided to span the topography obstacle in the matched system along the green road slow-running system, however, if the upper and lower structural forms of the mountain canyon beautiful highway green road bridge structure are selected improperly, adverse effects such as slow construction progress, high economic cost, high pressure of the beautiful highway on keeping, serious damage to natural environment and the like are necessarily generated. Therefore, the green road steel structure bridge form suitable for the mountain canyon beautiful highway is of great significance for building a green road slow-moving system along the mountain canyon beautiful highway.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a green road steel structure bridge applicable to mountain canyon roads, the upper structure of the green road steel structure bridge is of a pi-shaped steel plate girder structure, and the green road steel structure bridge has the characteristics of safe and reliable structure, high construction speed, convenience in industrial processing, excellent economy and the like. The lower structure of the bridge pier is a reinforced concrete capping beam single-column pier, the occupation of the space under the bridge can be reduced to the greatest extent, the disturbance to the surrounding environment along the green road is reduced, and the whole lower structure is concise and attractive.
The utility model adopts the technical scheme that:
a green-tract steel structure bridge applicable to mountain canyon roads comprises an upper structure and a lower structure; the upper structure comprises a pi-shaped steel plate girder structure formed by a steel top plate, a steel top plate longitudinal stiffening rib, a diaphragm plate, stiffening steel longitudinal beams, a lower flange and a longitudinal steel stop block, and the lower structure comprises a lower structure in a single-column pier form formed by a capping girder, a single-column pier, a pile foundation and/or an enlarged foundation; two ends of the upper pi-shaped steel plate girder structure are supported by two groups of lower structures in the form of single-column piers, and two adjacent groups of upper pi-shaped steel plate girder structures share one group of lower structures in the form of single-column piers for supporting, so that an integral green road steel structure bridge is formed.
Furthermore, the steel roof is a steel plate matched with the span and the width of the green road bridge, longitudinal plate type stiffening ribs and transverse partition plates are welded at the bottom of the steel roof, and the steel roof longitudinal plate type stiffening ribs and the transverse partition plates form an orthotropic steel bridge deck system.
Furthermore, the number of the longitudinal plate-type stiffening ribs is two, the two longitudinal stiffening steel longitudinal beams are symmetrically arranged to extend along the longitudinal direction of the steel top plate, the top of the longitudinal stiffening steel longitudinal beams is welded with the steel top plate, and the bottom of the longitudinal stiffening steel longitudinal beams is welded with the lower flange; the number of the transverse diaphragms is several, and the transverse diaphragms are arranged at equal intervals and extend along the transverse direction of the steel top plate; the longitudinal plate type stiffening ribs are orthogonal to the transverse partition plates.
Further, the bent cap of the lower structure is a reinforced concrete bent cap in a concave shape, the pi-shaped steel plate beam structure is erected in the bent cap, and the bottom of the bent cap is fixedly connected with the top of the single column pier.
Further, the single column pier of the lower structure is a reinforced concrete pier with a round section, one end of the stressed main rib of the single column pier extends into the capping beam, and the other end of the stressed main rib of the single column pier is connected with the main rib of the pile foundation or extends into the enlarged foundation.
Further, the pile foundation of the lower structure is a reinforced concrete foundation with a circular section, one end of the stressed main rib of the pile foundation is connected with the stressed main rib of the single column pier, and the pile foundation is positioned in a ground layer with reliable stress in the foundation.
Furthermore, the expansion foundation of the lower structure is a double-layer step reinforced concrete expansion foundation, the single-column pier stressed main ribs extend into the expansion foundation, and the expansion foundation substrate is positioned in a rock foundation with good foundation bearing capacity.
Further, the cover beam is provided with a transverse stop block of the upper pi-shaped steel plate beam, the lower flange is welded with a longitudinal steel stop block, and the transverse stop block and the longitudinal steel stop block can limit the pi-shaped steel plate beam in the transverse and longitudinal directions.
Further, an elastomer filling structure is arranged between the n-shaped steel plate beam structure and the n-shaped steel plate beam structure.
The beneficial effects of the utility model are as follows:
the green road steel structure bridge applicable to mountain canyon roads has the characteristics that the upper structure is of a pi-shaped steel plate girder structure, the structure is safe and reliable, the industrial processing is convenient, the economy is excellent, and the like; the lower structure of the bridge is a reinforced concrete bent cap single-column pier, so that occupation of space under the bridge can be reduced, and disturbance to the surrounding environment along the green road is reduced. The green road steel structure bridge applicable to mountain canyon roads can shorten the construction period, can save the construction cost and has better protection effect on natural environment.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a bottom plan view of the superstructure of the present utility model;
FIG. 4 is a schematic cross-sectional view of the novel superstructure of the present utility model employing conventional baffles;
FIG. 5 is a schematic cross-sectional view of the novel superstructure employing support baffles;
FIG. 6 is a schematic view of the mounting position of the longitudinal stop of the novel superstructure of the present utility model;
FIG. 7 is a schematic illustration of the installation location of the present novel elastomer filled construction;
in fig. 1-7, 1-steel roof, 2-steel roof longitudinal stiffeners, 3-cross plates, 4-stiffening steel stringers, 5-bottom flanges, 6-longitudinal steel stops, 7-polyurethane elastomer filled structure, 8-bent cap, 9-single column piers, 10-pile foundation, 11-expanded foundation, 12-transverse stops.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Aiming at the problems that if the upper and lower structural forms of the bridge structure of the green road of the gorge beautiful highway in the mountain area are selected improperly, the construction progress is slow, the economic cost is high, the pressure for keeping the beautiful highway is high, the damage to the natural environment is serious and the like are necessarily caused; the embodiment provides a green road steel structure bridge suitable for mountain area canyon highway, and this green road steel structure bridge upper structure suitable for mountain area canyon highway possesses characteristics such as structure safe and reliable, the batch production processing of being convenient for, economic nature are good, and the substructure can reduce the occupation to the underbridge space, has reduced the disturbance to green road along line surrounding environment to realize shortening construction cycle, practice thrift the purpose that construction cost is better to natural environment's protection effect.
As shown in fig. 1 and 2, in particular, the green-track steel-structure bridge suitable for mountain canyon roads includes an upper structure and a lower structure. The upper structure is a pi-shaped steel plate girder structure formed by a steel top plate 1, a steel top plate longitudinal stiffening rib 2, a diaphragm plate 3, stiffening steel longitudinal beams 4, a lower flange 5 and a longitudinal steel stop block 6; the substructure is formed by flexibly combining a capping beam 8, a single column pier 9, a pile foundation 10 and an enlarged foundation 11 according to the bridge span topography geological conditions.
The two ends of the upper pi-shaped steel plate girder structure are supported by two groups of lower structures in the form of single-column piers, as shown in fig. 7, a polyurethane elastomer filling structure 7 is arranged between the upper structure hole spans to ensure that the bridge deck has continuity, and two adjacent groups of upper pi-shaped steel plate girder structures share one group of lower structures in the form of single-column piers for supporting, so that an integral green road steel structure bridge is formed.
The green road steel structure bridge suitable for mountain canyon highway bears crowd load and bicycle load through the upper pi-shaped steel plate girder structure, and the lower structure of the single-column pier form is a supporting force transmission structure, so that constant load of the pi-shaped steel plate girder structure and crowd and bicycle live load are transmitted into the foundation.
Further, specific configurations of the upper structure and the lower structure are given in the present embodiment:
as shown in fig. 2-3, the steel top plate 1 of the upper structure is a steel plate with a certain thickness, which is matched with the span and width of the green bridge, longitudinal plate type stiffening ribs 2 are welded below the steel top plate 1, and transverse plates 3 are arranged at regular intervals below the steel top plate, and the transverse plates 3 are also used as transverse stiffening ribs of the steel top plate 1. The steel top plate 1, the longitudinal plate type stiffening ribs 2, the transverse partition plates 3 and other plates are welded in a matching way to form an orthotropic steel bridge deck system which directly bears the load of people and bicycles; two longitudinal stiffening steel stringers 4 are arranged below the orthotropic steel bridge deck, and lower flanges 5 are welded below the longitudinal stiffening steel stringers 4, so that an upper n-shaped steel plate girder structure is integrally formed.
The pi-shaped steel plate beam structure is safe and reliable in structure, convenient for industrial processing and good in economical efficiency. In the actual construction process, different diaphragm plates 3 can be selectively installed at different positions of the n-shaped steel plate girder structure according to the load size: as shown in fig. 5, the end of the n-shaped steel plate girder structure is relatively heavy in load, so that the long-sized diaphragm plate 3 can be installed, as shown in fig. 4, the middle section of the n-shaped steel plate girder structure is relatively light in load, so that the short-sized diaphragm plate 3 can be installed, and different diaphragm plates 3 can be selectively installed according to different loads of different positions of the n-shaped steel plate girder structure.
As shown in fig. 1-2, the substructure of the capping beam 8 is a reinforced concrete capping beam in the shape of a letter. The single column pier 9 is a reinforced concrete pier with a circular section, one end of a stressed main rib of the single column pier 9 extends into the capping beam 8, and the other end of the stressed main rib is connected with the main rib of the pile foundation 10 or extends into the enlarged foundation 11. The pile foundation 10 is a reinforced concrete foundation with a circular cross section, one end of the stressed main rib of the pile foundation 10 is connected with the stressed main rib of the single column pier 9, and the pile foundation 10 is arranged in a ground layer with reliable stress in the foundation. The enlarged foundation 11 is a double-layer step reinforced concrete enlarged foundation, the stressed main ribs of the single column piers 9 extend into the enlarged foundation 11, and the foundation of the enlarged foundation 11 is placed on a rock foundation with good foundation bearing capacity. The cover beam 8 and the single column pier 9 are matched with the pile foundation 10 or the enlarged foundation 11 to form a lower structure in the form of a single column pier, and the lower structure in the form of the single column pier is a supporting force transmission structure, so that constant load of the pi-shaped steel plate beam, crowd and bicycle live load are transmitted into the foundation.
Besides the fact that the lower structure in the single-column pier mode can achieve load transmission, occupation of space under a bridge can be reduced, and disturbance to surrounding environments along the green road is reduced. In the actual construction process, the pile foundation 10 and the enlarged foundation 11 can be flexibly selected according to the geological conditions of the topography below the bridge: the pile foundation 10 is selected when the upper soil layer of the foundation is weak, the shallow enlarged foundation 11 is adopted, the technology, construction and economy are not reasonable, and the enlarged foundation 11 is selected when the upper rock layer of the foundation is good in strength and stability and more favorable in construction and economy than the pile foundation 10.
Further, considering the horizontal stability of the upper n-shaped steel plate girder structure erected on the lower structure in the form of a single pier, as shown in fig. 1 and 7, the cover girder 8 is provided with a transverse stop 12 of the upper n-shaped steel plate girder in the transverse bridge direction for transverse limit, and a longitudinal steel stop 6 is welded on the stiffening steel longitudinal girder 4 and the lower flange 5 which are at a certain distance from the supporting position of the n-shaped steel plate girder, and the longitudinal steel stop 6 plays a role in limiting the longitudinal displacement of the n-shaped steel plate girder.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. Green way steel construction bridge suitable for mountain area canyon highway, its characterized in that: the green road steel structure bridge suitable for the mountain canyon highway comprises an upper structure and a lower structure;
the upper structure comprises a pi-shaped steel plate girder structure formed by a steel top plate, a steel top plate longitudinal stiffening rib, a diaphragm plate, stiffening steel longitudinal beams, a lower flange and a longitudinal steel stop block, and the lower structure comprises a lower structure in a single-column pier form formed by a capping girder, a single-column pier, a pile foundation and/or an enlarged foundation;
two ends of the upper pi-shaped steel plate girder structure are supported by two groups of lower structures in the form of single-column piers, and two adjacent groups of upper pi-shaped steel plate girder structures share one group of lower structures in the form of single-column piers for supporting, so that an integral green road steel structure bridge is formed.
2. The green-track steel-structured bridge for mountain canyon highway according to claim 1, wherein: the steel roof is a steel plate matched with the span and the width of the green road bridge, longitudinal plate type stiffening ribs and transverse partition plates are welded at the bottom of the steel roof, and the steel roof longitudinal plate type stiffening ribs and the transverse partition plates form an orthotropic steel bridge deck system.
3. The green-track steel-structured bridge for mountain canyon highway according to claim 2, wherein: the number of the longitudinal plate type stiffening ribs is two, the two longitudinal stiffening steel longitudinal beams are symmetrically arranged to extend along the longitudinal direction of the steel top plate, the top of the longitudinal stiffening steel longitudinal beams is welded with the steel top plate, and the bottom of the longitudinal stiffening steel longitudinal beams is welded with the lower flange; the number of the transverse diaphragms is several, and the transverse diaphragms are arranged at equal intervals and extend along the transverse direction of the steel top plate; the longitudinal plate type stiffening ribs are orthogonal to the transverse partition plates.
4. The green-track steel-structured bridge for mountain canyon highway according to claim 1, wherein: the bent cap of the lower structure is a reinforced concrete bent cap in a concave shape, the n-shaped steel plate beam structure is erected in the bent cap, and the bottom of the bent cap is fixedly connected with the top of the single column pier.
5. The green-track steel-structured bridge for mountain canyon highway according to claim 4, wherein: the single column pier of the lower structure is a reinforced concrete pier with a circular section, one end of the stressed main rib of the single column pier extends into the capping beam, and the other end of the stressed main rib of the single column pier is connected with the main rib of the pile foundation or extends into the enlarged foundation.
6. The green-track steel-structured bridge for mountain canyon highway according to claim 5, wherein: the pile foundation of the lower structure is a reinforced concrete foundation with a circular section, one end of the stressed main rib of the pile foundation is connected with the stressed main rib of the single column pier, and the pile foundation is positioned in a ground layer with reliable stress in the foundation.
7. The green-track steel-structured bridge for mountain canyon highway according to claim 5, wherein: the expansion foundation of the lower structure is a double-layer step reinforced concrete expansion foundation, the single-column pier stressed main ribs extend into the expansion foundation, and the expansion foundation substrate is positioned in the rock foundation.
8. The green-track steel-structured bridge for mountain canyon highway according to claim 1, wherein: the cover beam is provided with a transverse stop block of the upper n-shaped steel plate beam, the lower flange is welded with a longitudinal steel stop block, and the transverse stop block and the longitudinal steel stop block can limit the n-shaped steel plate beam in the transverse and longitudinal directions.
9. The green-track steel-structured bridge for mountain canyon highway according to claim 1, wherein: an elastomer filling structure is arranged between the n-shaped steel plate beam structure and the n-shaped steel plate beam structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320083174.3U CN220013339U (en) | 2023-01-28 | 2023-01-28 | Green road steel structure bridge suitable for mountain area canyon highway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320083174.3U CN220013339U (en) | 2023-01-28 | 2023-01-28 | Green road steel structure bridge suitable for mountain area canyon highway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220013339U true CN220013339U (en) | 2023-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320083174.3U Active CN220013339U (en) | 2023-01-28 | 2023-01-28 | Green road steel structure bridge suitable for mountain area canyon highway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220013339U (en) |
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2023
- 2023-01-28 CN CN202320083174.3U patent/CN220013339U/en active Active
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