CN109778662B - Rigid frame groove type beam bridge crossing shallow-buried tunnel - Google Patents
Rigid frame groove type beam bridge crossing shallow-buried tunnel Download PDFInfo
- Publication number
- CN109778662B CN109778662B CN201910194531.1A CN201910194531A CN109778662B CN 109778662 B CN109778662 B CN 109778662B CN 201910194531 A CN201910194531 A CN 201910194531A CN 109778662 B CN109778662 B CN 109778662B
- Authority
- CN
- China
- Prior art keywords
- tunnel
- groove
- rigid frame
- sides
- shallow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention provides a rigid frame groove-shaped beam bridge crossing a shallow buried tunnel, which comprises pile foundations, capping beams and groove-shaped beams which are sequentially arranged from bottom to top, wherein the pile foundations are erected on two sides of the tunnel, the capping beams are positioned on two sides of the tunnel and are fixedly connected to the tops of the pile foundations on the corresponding sides respectively, and the groove-shaped beams cross over the tunnel and are in rigid connection with the capping beams on two sides of the tunnel respectively. The rigid frame groove-shaped beam bridge crossing the shallow-buried tunnel adopts the groove-shaped beam structure, and the groove-shaped beam structure is low in height, so that the road design elevation and the tunnel anti-floating requirement can be simultaneously met when crossing the shallow-buried tunnel; the groove-shaped beam is just connected with the cover beam, and a rigid frame form is adopted without arranging a support, so that maintenance work during operation is reduced.
Description
Technical Field
The invention relates to the field of bridges, in particular to a rigid frame groove type girder bridge crossing a shallow tunnel.
Background
Road design across a railway tunnel is generally to erect a bridge at the top of the tunnel, and the prior art generally directly adopts a prefabricated small box girder structure, as shown in figures 1-2, and the scheme has the following defects: if the beam body structure is adopted, the height of the beam body structure is larger, under the condition that the road design elevation is determined, the soil body with a certain thickness at the top of the tunnel is often required to be removed, when the tunnel spans a shallow buried tunnel, the soil body with a certain thickness at the top of the tunnel is removed, the covering soil at the top of the tunnel is too thin, and the anti-floating requirement of the tunnel cannot be met, namely the road design elevation and the anti-floating requirement of the tunnel cannot be met at the same time; and the beam body structure support is positioned below the ground, so that the maintenance workload is large, and if the support cannot be maintained in time, the durability of the support can be seriously affected.
Disclosure of Invention
The invention aims to provide a rigid frame groove-shaped beam bridge crossing a shallow buried tunnel, which is used for solving the problems that the existing bridge beam structure crossing a railway tunnel cannot meet the road design elevation and the tunnel anti-floating requirement at the same time and the support maintenance workload is large.
The invention is realized in the following way:
the invention provides a rigid frame groove-shaped beam bridge crossing a shallow buried tunnel, which comprises pile foundations, capping beams and groove-shaped beams which are sequentially arranged from bottom to top, wherein the pile foundations are erected on two sides of the tunnel, the capping beams are positioned on two sides of the tunnel and are fixedly connected to the tops of pile foundations on the corresponding sides respectively, and the groove-shaped beams cross over the tunnel and are in rigid connection with the capping beams on two sides of the tunnel respectively.
Further, the trough beam comprises a prefabricated section and post-cast sections positioned on two sides of the prefabricated section, two ends of the prefabricated section are respectively lapped on the bent caps on two sides of the tunnel and have a certain distance with the outer side edges of the bent caps, the post-cast sections are positioned on the bent caps and are combined with the prefabricated section, and the prefabricated section is fixedly connected with the bent caps through the post-cast sections.
Further, the pile foundation is a bored pile.
Further, the groove type beam is a Shan Kongyu stress concrete groove type beam.
Further, the bent cap is a reinforced concrete bent cap.
Further, the distance between the bottom of the groove beam and the top of the tunnel structure is not less than 2m.
Further, the trough beams are arranged in a plurality of channels side by side.
Further, two ends of the groove-shaped beam are respectively provided with an access board in an outward extending mode, and brackets connected with the groove-shaped beam or the cover beam are arranged below the access boards.
Compared with the prior art, the invention has the following beneficial effects:
the rigid frame groove-shaped beam bridge crossing the shallow-buried tunnel adopts the groove-shaped beam structure, and the groove-shaped beam structure is low in height, so that the road design elevation and the tunnel anti-floating requirement can be simultaneously met when crossing the shallow-buried tunnel; the groove-shaped beam is just connected with the cover beam, and a rigid frame form is adopted without arranging a support, so that maintenance work during operation is reduced. The invention combines the common groove-shaped beam with the conventional rigid frame, thereby not only playing the advantage of low structure height of the groove-shaped beam, but also utilizing the characteristics of no need of arranging a support for the rigid frame and reducing maintenance work during operation.
Drawings
FIG. 1 is an elevational view of a prior art small box girder bridge;
FIG. 2 is a cross-sectional view taken along the direction A-A of FIG. 1;
FIG. 3 is an elevation view of a rigid frame trough girder bridge spanning a shallow tunnel according to the present embodiment;
FIG. 4 is a schematic view of a portion of a rigid frame trough girder bridge spanning a shallow tunnel according to the present embodiment;
fig. 5 is a cross-sectional view in the direction A-A of fig. 4.
Reference numerals illustrate: 1-pile foundation, 2-bent cap, 3-groove type beam, 31-prefabricated section, 32-post-cast section, 4-butt strap and 5-bracket.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 3 to 5, the embodiment of the invention provides a rigid frame groove beam bridge crossing a shallow buried tunnel, which comprises pile foundations 1, cover beams 2 and groove beams 3 which are sequentially arranged from bottom to top, wherein the pile foundations 1 stand on two sides of the tunnel, each side is provided with at least one pile foundation 1, the cover beams 2 are also positioned on two sides of the tunnel, each side is provided with at least one cover beam 2, each cover beam 2 is fixedly connected with the top of the pile foundation 1 on the corresponding side respectively, one cover beam 2 can be fixedly connected with the top of one pile foundation 1, or a plurality of pile foundations 1 are fixedly connected with one cover beam 2, the groove beams 3 are transversely arranged above the tunnel and are respectively and rigidly connected with the cover beams 2 on two sides of the tunnel, no support is arranged in the middle, the groove beams 3 can be one or a plurality of the groove beams 3 are also arranged side by side, and one cover beam 2 can be rigidly connected with one or a plurality of groove beams 3 as required.
The rigid frame groove-shaped beam bridge crossing the shallow-buried tunnel provided by the embodiment of the invention adopts the groove-shaped beam 3 structure, and the groove-shaped beam 3 structure is low in height, so that the road design elevation and the tunnel anti-floating requirement can be simultaneously met when crossing the shallow-buried tunnel; the groove beam 3 is just connected with the cover beam 2, and a rigid frame form is adopted without arranging a support, so that maintenance work during operation is reduced. The invention combines the common groove beam 3 with the conventional rigid frame, thereby not only exerting the advantage of low structural height of the groove beam 3, but also utilizing the characteristics that the rigid frame does not need to be provided with a support and reducing maintenance work during operation.
As shown in fig. 4, the manner in which the trough beam 3 and the capping beam 2 are just connected is thinned, the trough beam 3 includes a prefabricated section 31 and post-cast sections 32 located at two sides of the prefabricated section 31, two ends of the prefabricated section 31 are respectively lapped on the capping beams 2 at two sides of the tunnel and have a certain distance from the outer edges of the capping beams 2, the post-cast sections 32 at two sides are respectively located on the capping beams 2 at two sides of the tunnel and are both combined with the prefabricated section 31, and reserved steel bars of the post-cast sections 32 and reserved steel bars of the capping beams 2 are both combined with the post-cast sections 32 into a whole, so that the trough beam 3 and the capping beams 2 are fixedly connected together through the post-cast sections 32. The post-cast section 32 and the prefabricated section 31 are of groove-shaped structures and are matched in shape, and the outer side edge of the post-cast section 32 is just flush with the outer side edge of the bent cap 2, so that the structure is smoother and tidier. During construction, the pile foundation 1 and the capping beam 2 are firstly constructed, meanwhile, the precast sections 31 of the groove-shaped beam 3 are manufactured in a beam field, post-cast section steel bars are reserved in the capping beam 2 and the precast sections 31 in construction, the precast sections 31 of the groove-shaped beam 3 are arranged on the capping beam 2 through hoisting equipment, and the post-cast sections 32 are poured to connect the groove-shaped beam 3 and the capping beam 2 into a whole.
According to the embodiment, the pile foundation 1 is a bored pile, the groove-shaped beam 3 is a single-hole prestressed concrete groove-shaped beam 3, and the capping beam 2 is a reinforced concrete capping beam 2, so that the whole structure is simple in structure, firm in fixation and convenient to construct.
Further preferably, the distance between the bottom of the groove beam 3 and the top of the tunnel structure is not less than 2m, so that the thickness of the covering soil at the top of the tunnel can be not less than 2m, and the requirement of the tunnel on anti-floating is met.
As shown in fig. 5, when the deck is wide, the channel beams 3 may be arranged in a plurality of channels side by side, and each channel of channel beams 3 may be separately prefabricated, thereby reducing the lifting weight.
As shown in fig. 3, further preferably, two ends of the channel beam 3 extend outwards respectively to be provided with a butt strap 4, so that a buffer effect can be achieved when the vehicle runs to prevent the bridge head from jumping, the bottom of the butt strap 4 can be flush with the top of the capping beam 2 or higher than the top of the capping beam 2, as shown in fig. 4, a bracket 5 connected with the channel beam 3 or the capping beam 2 is arranged below the butt strap 4, and the butt strap 4 is structurally supported by the bracket 5, so that the butt strap 4 is more stable.
The rigid frame groove type girder bridge crossing the shallow buried tunnel provided by the embodiment of the invention is suitable for the conditions that the bridge structure is strictly limited in height and has strict requirements on travelling smoothness and comfort when a road, an urban road, a municipal road, a service lane and an airplane taxiway pass over a shallow buried tunnel section (mainly referred to as covering soil with the thickness not more than 2 meters), and the single-hole prestressed concrete groove type girder 3 structure of the embodiment is adopted, so that the requirements on multiple aspects can be met.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a span shallow tunnel's rigid frame groove type beam bridge which characterized in that: the pile foundation is erected on two sides of a tunnel, the bent cap is positioned on two sides of the tunnel and is fixedly connected to the tops of pile foundations on the corresponding sides respectively, and the groove-shaped beam spans over the tunnel and is in rigid connection with the bent cap on two sides of the tunnel respectively;
the groove-shaped beam comprises a prefabricated section and post-cast sections positioned at two sides of the prefabricated section, two ends of the prefabricated section are respectively lapped on the bent cap at two sides of the tunnel and have a certain distance with the outer side edge of the bent cap, the post-cast sections are positioned on the bent cap and are combined with the prefabricated section, and the prefabricated section is fixedly connected with the bent cap through the post-cast sections;
the bent cap is a reinforced concrete bent cap.
2. The rigid frame channel beam bridge spanning a shallow tunnel of claim 1, wherein: the pile foundation is a bored pile.
3. The rigid frame channel beam bridge spanning a shallow tunnel of claim 1, wherein: the groove type beam is Shan Kongyu stress concrete groove type beam.
4. The rigid frame channel beam bridge spanning a shallow tunnel of claim 1, wherein: the distance between the bottom of the groove-shaped beam and the top of the tunnel structure is not less than 2m.
5. The rigid frame channel beam bridge spanning a shallow tunnel of claim 1, wherein: the groove-shaped beams are arranged in parallel.
6. The rigid frame channel beam bridge spanning a shallow tunnel of claim 1, wherein: the two ends of the groove-shaped beam are respectively provided with an access board in an outward extending mode, and brackets connected with the groove-shaped beam or the cover beam are arranged below the access boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194531.1A CN109778662B (en) | 2019-03-14 | 2019-03-14 | Rigid frame groove type beam bridge crossing shallow-buried tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910194531.1A CN109778662B (en) | 2019-03-14 | 2019-03-14 | Rigid frame groove type beam bridge crossing shallow-buried tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109778662A CN109778662A (en) | 2019-05-21 |
| CN109778662B true CN109778662B (en) | 2024-04-02 |
Family
ID=66489248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910194531.1A Active CN109778662B (en) | 2019-03-14 | 2019-03-14 | Rigid frame groove type beam bridge crossing shallow-buried tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109778662B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200608A (en) * | 2000-01-20 | 2001-07-27 | Nkk Corp | Upper structure of bridge or the like and construction method therefor |
| JP2001336115A (en) * | 2000-05-29 | 2001-12-07 | Nkk Corp | Rebuilding method of bridge |
| KR200284234Y1 (en) * | 2002-01-04 | 2002-08-10 | 전혜관 | prestressed concrete girder bridge structure rigidly joined to abutment by prestressing |
| KR20080052303A (en) * | 2006-12-06 | 2008-06-11 | 에이버겔디 지 빔 피티와이 리미티드 | Continuous span structure |
| KR20090045825A (en) * | 2007-11-02 | 2009-05-08 | 롯데건설 주식회사 | With h-typed cross section member for channel bridge |
| CN102720137A (en) * | 2012-06-27 | 2012-10-10 | 广州瀚阳工程咨询有限公司 | Prefabrication construction method for trough girder sections of track traffic high-level bridge |
| JP5539554B1 (en) * | 2013-02-04 | 2014-07-02 | 黒沢建設株式会社 | Girder bridge connection structure and girder bridge structure |
| CN204530739U (en) * | 2015-04-10 | 2015-08-05 | 中铁建大桥工程局集团第二工程有限公司 | A kind of super shallow-buried tunnel and it is also built the construction structure of building |
| CN106498814A (en) * | 2016-12-19 | 2017-03-15 | 中铁第五勘察设计院集团有限公司 | A kind of construction equipment of city track traffic U type beam solid concrete roabed and method |
| CN207079460U (en) * | 2017-07-31 | 2018-03-09 | 北京市市政工程设计研究总院有限公司 | Economical no-top plate precast reinforced concrete combines simply supported beam |
| DE102017131351A1 (en) * | 2016-12-28 | 2018-06-28 | Max Bögl Stiftung & Co. Kg | Trough-shaped superstructure for a bridge, bridge, prefabricated part for a trough of a bridge and method for the construction of a bridge |
| CN108951397A (en) * | 2018-09-06 | 2018-12-07 | 华东交通大学 | A kind of groove profile-welded box cross column continuous bridge |
| CN109371799A (en) * | 2018-10-29 | 2019-02-22 | 中铁第四勘察设计院集团有限公司 | Streetcar track beam steel structure |
| CN209759998U (en) * | 2019-03-14 | 2019-12-10 | 中铁第四勘察设计院集团有限公司 | Rigid frame groove type beam bridge crossing shallow buried tunnel |
-
2019
- 2019-03-14 CN CN201910194531.1A patent/CN109778662B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001200608A (en) * | 2000-01-20 | 2001-07-27 | Nkk Corp | Upper structure of bridge or the like and construction method therefor |
| JP2001336115A (en) * | 2000-05-29 | 2001-12-07 | Nkk Corp | Rebuilding method of bridge |
| KR200284234Y1 (en) * | 2002-01-04 | 2002-08-10 | 전혜관 | prestressed concrete girder bridge structure rigidly joined to abutment by prestressing |
| KR20080052303A (en) * | 2006-12-06 | 2008-06-11 | 에이버겔디 지 빔 피티와이 리미티드 | Continuous span structure |
| KR20090045825A (en) * | 2007-11-02 | 2009-05-08 | 롯데건설 주식회사 | With h-typed cross section member for channel bridge |
| CN102720137A (en) * | 2012-06-27 | 2012-10-10 | 广州瀚阳工程咨询有限公司 | Prefabrication construction method for trough girder sections of track traffic high-level bridge |
| JP5539554B1 (en) * | 2013-02-04 | 2014-07-02 | 黒沢建設株式会社 | Girder bridge connection structure and girder bridge structure |
| CN204530739U (en) * | 2015-04-10 | 2015-08-05 | 中铁建大桥工程局集团第二工程有限公司 | A kind of super shallow-buried tunnel and it is also built the construction structure of building |
| CN106498814A (en) * | 2016-12-19 | 2017-03-15 | 中铁第五勘察设计院集团有限公司 | A kind of construction equipment of city track traffic U type beam solid concrete roabed and method |
| DE102017131351A1 (en) * | 2016-12-28 | 2018-06-28 | Max Bögl Stiftung & Co. Kg | Trough-shaped superstructure for a bridge, bridge, prefabricated part for a trough of a bridge and method for the construction of a bridge |
| CN207079460U (en) * | 2017-07-31 | 2018-03-09 | 北京市市政工程设计研究总院有限公司 | Economical no-top plate precast reinforced concrete combines simply supported beam |
| CN108951397A (en) * | 2018-09-06 | 2018-12-07 | 华东交通大学 | A kind of groove profile-welded box cross column continuous bridge |
| CN109371799A (en) * | 2018-10-29 | 2019-02-22 | 中铁第四勘察设计院集团有限公司 | Streetcar track beam steel structure |
| CN209759998U (en) * | 2019-03-14 | 2019-12-10 | 中铁第四勘察设计院集团有限公司 | Rigid frame groove type beam bridge crossing shallow buried tunnel |
Non-Patent Citations (1)
| Title |
|---|
| 轨道交通槽形梁试验研究;吴迅;付坤;;城市轨道交通研究(第06期);57-60 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109778662A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205443907U (en) | Double track railway box web letter branching groove ellbeam | |
| CN107604804B (en) | Multi-tower cable-stayed bridge with common-rail and laminated layers | |
| CN210239246U (en) | Wide flat beam type assembled concrete canopy for railway platform | |
| CN111827075A (en) | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge and construction method | |
| CN111502347A (en) | Three-layer single-column assembled elevated station for rail transit | |
| CN110820517A (en) | Assembled railway tubular beam | |
| CN109930469B (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN112982139A (en) | Wide-width large-span hybrid beam and short-tower cable-stayed bridge system and construction method thereof | |
| CN209759998U (en) | Rigid frame groove type beam bridge crossing shallow buried tunnel | |
| CN205999769U (en) | A kind of high-speed railway steel reinforced concrete combines only tower section cable-stayed bridge | |
| CN109778662B (en) | Rigid frame groove type beam bridge crossing shallow-buried tunnel | |
| CN211498430U (en) | Stayed-cable steel truss through-center type arch bridge | |
| CN210636294U (en) | Cable-stayed bridge of semi-floating truss type bridge tower | |
| CN108342975A (en) | The arch of crossbeam holds Cable-Stayed Bridge Structure between a kind of no tower | |
| CN106638261A (en) | Railway bridge separated dual-box pre-stressed concrete main girder structure | |
| CN201390928Y (en) | Support rail continuous beam in double track railway | |
| CN105696455A (en) | Box type web simply supported U-shaped girder of double-track railway | |
| CN214498527U (en) | A elevated station of V post steel construction for track traffic | |
| CN102877417B (en) | Anchoring method of girder suspender of continuous camber composite bridge | |
| CN209941469U (en) | Steel box girder thin-wall pier rigid frame cable-stayed bridge suitable for straddle type monorail | |
| CN212714471U (en) | High-speed railway highway-railway combined construction continuous steel truss combined beam bridge | |
| CN213682477U (en) | Upper cover structure system applied to track operation line | |
| CN210507095U (en) | H-shaped single-tower double-cable-surface prestressed concrete cable-stayed bridge main beam structure | |
| CN112983058A (en) | Elevated station with rail transit V-shaped column steel structure | |
| CN209798449U (en) | Turnout braced system suitable for straddle type monorail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |