CN103321137A - Groove-shaped bridge beam - Google Patents
Groove-shaped bridge beam Download PDFInfo
- Publication number
- CN103321137A CN103321137A CN2013102450253A CN201310245025A CN103321137A CN 103321137 A CN103321137 A CN 103321137A CN 2013102450253 A CN2013102450253 A CN 2013102450253A CN 201310245025 A CN201310245025 A CN 201310245025A CN 103321137 A CN103321137 A CN 103321137A
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- base plate
- channel change
- bridge
- arch
- change bridge
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- 239000000463 material Substances 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Abstract
本发明公开了一种槽形桥梁，包括左右纵梁，底板和左右腹板，其特征在于所述左右纵梁向跨径方向延伸形成纵向受力结构体系，所述底板呈横向拱形，其左右两侧边分别与所述左右纵梁下边相连接，所述左右腹板向外与水平倾斜一夹角安置，腹板的下边分别与所述左右纵梁上边相连接。本发明采用横向拱形底板代替常规槽形桥梁的平板形式的底板，与常规槽形桥梁相比，本发明可减小槽形桥梁底板厚度，节约混凝土与钢筋材料用量，采用较薄底板后可增大槽形桥梁的跨越能力。
The invention discloses a trough-shaped bridge, comprising left and right longitudinal girders, bottom plates and left and right web plates, characterized in that the left and right longitudinal girders extend in the span direction to form a longitudinally stressed structural system, the bottom plate is transversely arched, and The left and right sides are respectively connected to the lower sides of the left and right longitudinal beams, the left and right webs are arranged at an angle inclined outward to the horizontal, and the lower sides of the webs are respectively connected to the upper sides of the left and right longitudinal beams. The present invention adopts the transverse arched bottom plate to replace the plate-shaped bottom plate of the conventional trough bridge. Compared with the conventional trough bridge, the present invention can reduce the thickness of the bottom plate of the trough bridge and save the amount of concrete and steel reinforcement materials. Increase the spanning capacity of the trough bridge.
Description
Technical field
The invention belongs to technical field of civil engineering, relate to a kind of bridge engineering structure, more specifically relate to a kind of channel change bridge.
Background technology
Existing channel change bridge is by longeron, base plate adds the project subject structure of the web formation channel change bridge of both sides, base plate adopts the slabbed construction form, for guaranteeing the requirement of agent structure force and deformation rigidity, the base plate of flat type generally need to adopt larger thickness just can meet the demands, generally make 40cm thick, thicker base plate has caused the increase of structure engineering quantity and investment, and so that the center of gravity of channel change bridge is lower, the cross section efficiency index is on the low side, unfavorable to vertical bending resistance, weakened the span ability of channel change bridge.
Summary of the invention
The object of the invention is to overcome the defective of prior art, a kind of channel change bridge that has thinner base plate, has larger span ability is provided.
In order to achieve the above object, technical scheme of the present invention is:
A kind of channel change bridge, comprise left-right longeron, base plate and left and right sides web, it is characterized in that: described left-right longeron extends to form longitudinal stress structural system to striding the footpath direction, described base plate is horizontal arch, its limit, left and right sides is connected with described left-right longeron bottom respectively, described left and right sides web outwards with the arrangement of horizontal tilt one angle, the bottom of web is connected with described left-right longeron top respectively.
The transverse arch oblique crank Z line of base plate described above is linear to be in linear any of circular arc, parabola shaped or stretched wire.
The transverse arch tee section form of base plate described above is plate arch or box-shaped arch.
The horizontal arch ratio of rise to span of base plate described above is 1/4 to 1/16.
Left and right sides web described above outwards and level, the angle of inclination is more than or equal to 45 degree, less than 90 degree.
Plate upper surface described above also is provided with bridge deck pavement.
A kind of channel change bridge of the present invention, adopt to have following advantage and beneficial effect behind the horizontal arch floor:
(1) optimized bottom slab stress, adopt horizontal arch floor after, bottom slab stress is take pressure-bearing as main, the suffered moment of flexure of base plate reduces;
(2) because the suffered moment of flexure of base plate reduces, can reduce base plate and be subjected to the bar bending consumption and reduce base plate thickness;
(3) base plate thickness reduces, and can significantly reduce the concrete material consumption, compares with conventional channel change bridge, and the concrete material consumption can save 10% to 15%, significantly reduces the base arrangement deadweight, reduces construction costs;
(4) after the base plate deadweight reduced, the vertical bending moment that is caused by the base plate deadweight was also reduced, and can reduce longitudinal prestressing muscle consumption; Simultaneously, the span ability that reduces to increase channel change bridge of base plate deadweight.
(5) base plate adopts horizontal arch floor, so that move on the center of gravity of channel change bridge structure, improves the cross section efficiency index at longitudinal prestressing muscle place, further reduces longitudinal prestressing muscle consumption, further reduces construction costs.
The application advantage of channel change bridge is, not only can effectively reduce the building height of bridge superstructure, has simultaneously the reduction noise, anti-driving is disturbed, anti-side direction beam wind, guarantee the advantage of traffic safety, be specially adapted to pass through urban compact population traffic route, area and pass through the traffic route with larger beam wind area.A kind of channel change bridge of the present invention had both solved the blocked up series of problems that brings of traditional channel change bridge base plate, had improved the stress performance of channel change bridge base plate, had reduced construction costs, had increased the span ability of such bridge.
Description of drawings
Fig. 1 is the structure schematic top plan view of channel change bridge of the present invention.
Fig. 2 is the A-A sectional drawing of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of channel change bridge, by left-right longeron 1, laterally arch floor 2 and left and right sides web 3 consist of the agent structure of flute profile beam bridge, described left-right longeron 1 extends to form longitudinal stress structural system to striding the footpath direction.The transverse arch oblique crank Z line that described horizontal arch floor 2 adopts is linear to be circular arc, laterally the vault of arch floor 2 is positioned at bridge cross section center line, dual-side and left-right longeron 1 integrated connection of horizontal arch floor 2, described left and right sides web 3 outwards with the horizontal plane angle arrangement of tilting, the bottom of left and right sides web is connected with described left-right longeron top respectively.
Specific construction flow process of the present invention is as follows:
(1) at first sets up support and template;
(2) assembling reinforcement, the reinforcing bar of longeron, base plate and web part bottom comprising;
(3) reserve longeron presstressed reinforcing steel duct, concreting comprises longeron, base plate and web part;
(4) stretch-draw prestressing force concrete steel bundle, the anchoring termination is built anchored end end socket concrete and is carried out construction and maintenance.
Corresponding construction construction features of the present invention:
(1) base plate adopts horizontal domes, and laterally the ratio of rise to span of arch floor changes in 1/16 to 1/4 scope;
(2) horizontal arch floor both sides and bottom longeron integrated connection;
(3) the bottom longeron is to bear vertical bending moment as main;
(4) horizontal arch floor is take pressure-bearing as main, suffered moment of flexure is less, so base plate can than the base plate of flat type do thinner, reduce base plate and be subjected to bar bending consumption and concrete material consumption, compare with conventional channel change bridge, the concrete material consumption can save 10% to 15%, has significantly alleviated the base plate deadweight, the vertical bending moment that is caused by the base plate deadweight is also reduced, and has increased the span ability of channel change bridge.
(5) base plate adopts horizontal arch form of structure, can improve the cross section efficiency index at longitudinal prestressing muscle place so that move on the center of gravity of channel change bridge structure, further reduces longitudinal prestressing muscle consumption, further reduces construction costs.
Claims (6)
1. channel change bridge, comprise left-right longeron (1), base plate (2) and left and right sides web (3), it is characterized in that: described left-right longeron (1) extends to form longitudinal stress structural system to striding the footpath direction, described base plate (2) is horizontal arch, its limit, left and right sides is connected with described left-right longeron (1) bottom respectively, described left and right sides web (3) outwards with the horizontal plane angle arrangement of tilting, the bottom of web (3) is connected with described left-right longeron (1) top respectively.
2. a kind of channel change bridge according to claim 1 is characterized in that: the transverse arch oblique crank Z line of described base plate (2) is linear to be in linear any of circular arc, parabola shaped or stretched wire.
3. according to claim 1 to 2 described a kind of channel change bridges, it is characterized in that: the transverse arch tee section form of described base plate (2) is plate arch or box-shaped arch.
4. according to claim 1 to 2 described a kind of channel change bridges, it is characterized in that: the horizontal arch ratio of rise to span of described base plate (2) is 1/4 to 1/16.
5. a kind of channel change bridge according to claim 1 is characterized in that: described angle is more than or equal to 45 degree, less than 90 degree.
6. a kind of channel change bridge according to claim 1, it is characterized in that: described base plate (2) upper surface also is equipped with bridge deck pavement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310245025.3A CN103321137B (en) | 2013-06-19 | 2013-06-19 | a trough bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310245025.3A CN103321137B (en) | 2013-06-19 | 2013-06-19 | a trough bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321137A true CN103321137A (en) | 2013-09-25 |
| CN103321137B CN103321137B (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310245025.3A Expired - Fee Related CN103321137B (en) | 2013-06-19 | 2013-06-19 | a trough bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103321137B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696455A (en) * | 2015-12-30 | 2016-06-22 | 中铁第四勘察设计院集团有限公司 | Box type web simply supported U-shaped girder of double-track railway |
| CN107012777A (en) * | 2017-05-10 | 2017-08-04 | 中铁第勘察设计院集团有限公司 | Track traffic uprises continuous U beams |
| CN107119548A (en) * | 2017-06-13 | 2017-09-01 | 林再颐 | A trough-shaped bridge with strong wind resistance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047616A (en) * | 2000-08-04 | 2002-02-15 | Ttk Corp | Synthetic floorslab and steel bridge |
| CN2575148Y (en) * | 2002-09-26 | 2003-09-24 | 上海市隧道工程轨道交通设计研究院 | Balance device for obstructing passage of vehicle |
| KR100603906B1 (en) * | 2005-12-28 | 2006-07-24 | 한국철도시설산업 (주) | U-Shaped Judo-Phase |
| KR100665876B1 (en) * | 2006-03-31 | 2007-01-09 | 우경건설 주식회사 | Construction method of corrugated steel girder bridge of prestressed opening with concrete caisson installed on upper flange |
| CN201125362Y (en) * | 2007-09-13 | 2008-10-01 | 赛思达(上海)技术咨询有限公司 | Prestressed Elevated Structure Applied to Rail Transit |
| CN102286915A (en) * | 2011-08-30 | 2011-12-21 | 北京城建设计研究总院有限责任公司 | Urban railway traffic continuous basin type beam |
-
2013
- 2013-06-19 CN CN201310245025.3A patent/CN103321137B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002047616A (en) * | 2000-08-04 | 2002-02-15 | Ttk Corp | Synthetic floorslab and steel bridge |
| CN2575148Y (en) * | 2002-09-26 | 2003-09-24 | 上海市隧道工程轨道交通设计研究院 | Balance device for obstructing passage of vehicle |
| KR100603906B1 (en) * | 2005-12-28 | 2006-07-24 | 한국철도시설산업 (주) | U-Shaped Judo-Phase |
| KR100665876B1 (en) * | 2006-03-31 | 2007-01-09 | 우경건설 주식회사 | Construction method of corrugated steel girder bridge of prestressed opening with concrete caisson installed on upper flange |
| CN201125362Y (en) * | 2007-09-13 | 2008-10-01 | 赛思达(上海)技术咨询有限公司 | Prestressed Elevated Structure Applied to Rail Transit |
| CN102286915A (en) * | 2011-08-30 | 2011-12-21 | 北京城建设计研究总院有限责任公司 | Urban railway traffic continuous basin type beam |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696455A (en) * | 2015-12-30 | 2016-06-22 | 中铁第四勘察设计院集团有限公司 | Box type web simply supported U-shaped girder of double-track railway |
| CN107012777A (en) * | 2017-05-10 | 2017-08-04 | 中铁第勘察设计院集团有限公司 | Track traffic uprises continuous U beams |
| CN107119548A (en) * | 2017-06-13 | 2017-09-01 | 林再颐 | A trough-shaped bridge with strong wind resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103321137B (en) | 2015-07-08 |
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Application publication date: 20130925 Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Denomination of invention: A trough bridge Granted publication date: 20150708 License type: Common License Record date: 20210714 |
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| EC01 | Cancellation of recordation of patent licensing contract | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Center for technology transfer Jiangsu University of Science and Technology Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021980006173 Date of cancellation: 20210826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |