CN106835950A - Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations - Google Patents
Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations Download PDFInfo
- Publication number
- CN106835950A CN106835950A CN201710188557.6A CN201710188557A CN106835950A CN 106835950 A CN106835950 A CN 106835950A CN 201710188557 A CN201710188557 A CN 201710188557A CN 106835950 A CN106835950 A CN 106835950A
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- China
- Prior art keywords
- gusset plate
- web member
- arch
- concrete
- welded
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
Abstract
Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations, effectively to reduce the difficulty of construction of arch rib truss, and prevent stress concentration, improve anti-fatigue performance.Including chord member, gusset plate and H type web members, gusset plate are welded on the outer wall of chord member.The end of the H types web member and gusset plate butt welding, gusset plate end is using circular arc and the smoother connection of chord member.
Description
Technical field
The invention belongs to science of bridge building technology, more particularly to a kind of concrete-filled steel tube arch arch rib truss H type web member all welded types
Coupling configuration.
Background technology
CFST Arch Bridge belongs to the one kind in steel-concrete combined structure.CFST Arch Bridge is by steel pipe
Fill concrete, the expansion of compression concrete is limited due to the radial constraint of steel pipe, concrete is in three dimension stress state,
So as to significantly improve the compression strength of concrete.Steel pipe has the effect of lengthways main steel bar and horizontal cuff concurrently simultaneously, at the same time as
Construction formwork, facilitates concreting.The property of steel, two kinds of materials of concrete has been given full play to due to CFST Arch Bridge
Can, construction is again convenient, and good economy performance, span ability are big, makes its application more and more extensively, CFST Arch Bridge span
Constantly increasing, and for Long-Span Concrete Filled Steel Tubular Arch Bridges, from for stress and reasonable structure, arch rib (main arch ring) should be complete
Portion or vault segmented portion use empty stomach space truss structure, i.e., using hollow steel pipe as web member, with concrete-filled steel tubes
Rib top-bottom chord is directly welded, but the major defect of pipe-pipe related subgroup node is poor anti-fatigue performance, big for load,
The anti-fatigue performance requirement rare use of railroad bridge high, is mainly used in highway bridge.
As the improvement on railroad bridge, two kinds of truss structures are occurred in that.The first is in web member and insertion top-bottom chord
Gusset plate bolt connection, be for second to be connected with the gusset plate bolt being welded on the outside of top-bottom chord using web member, the structure
Insertion gusset plate of being slotted on supervisor is solved, the problem of welding is also needed in pipe, but no matter which kind of form used, web member is both needed to
To be bolted with gusset plate, due to needing to compensate weakening of the bolt hole to gusset plate, node board size is bigger than normal, node second inner force
It is larger.And learnt according to the situation that a large amount of bridge site operations feed back, when arch rib is assembled due to deformation of timbering, positioning precision,
The construction error that welding deformation etc. is caused is connected with the bolt of gusset plate to web member and causes very big difficulty, can be borrowed when error is smaller
Helping external force carries out pressure splicing, but very big installation internal force is left in structure, very unfavorable to structure, when error is larger then without
Method is attached, and needs blanking again to make rod member, and later stage distribution is bolted, and causes very big economic waste and construction delay.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of concrete-filled steel tube arch arch rib truss H type web members all welded type connection
Construction is connect, effectively to reduce the difficulty of construction of arch rib truss, and stress concentration is prevented, anti-fatigue performance is improved.
The technical solution adopted for the present invention to solve the technical problems is as follows：
Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations of the invention, including chord member, gusset plate and H
Type web member, gusset plate is welded on the outer wall of chord member, it is characterized in that：The end of the H types web member and gusset plate butt welding, section
Point plate end is using circular arc and the smoother connection of chord member.
The beneficial effects of the invention are as follows, using welding between H types web member and gusset plate, can be by two ends butt weld to spelling
Error is connect to be adjusted, it is very convenient；Gusset plate has effectively neutralized two internal force of web member, reduces the stress of gusset plate, section
Size is smaller when point plate is connected with web member junction node board size compared with bolt, gusset plate both sides when making gusset plate be connected with chord member
Can also be unlikely to cause gusset plate oversized using the transition of large radius arc form, not only node second inner force is smaller, and
Stress concentration effectively is prevented, anti-fatigue performance is extremely superior.
Brief description of the drawings
This specification includes following six width accompanying drawing：
Fig. 1 is the structural map that existing concrete-filled steel tube arch arch rib truss couples with H type web members；
Fig. 2 is the sectional view of I-I line along Fig. 1；
Fig. 3 is the structural map that existing concrete-filled steel tube arch arch rib truss couples with H type web members；
Fig. 4 is the sectional view of II-II line along Fig. 1；
Fig. 5 is the schematic diagram of concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations of the present invention；
Fig. 6 is the sectional view of III-III line along Fig. 1；
Component and corresponding mark are shown in figure：Chord member 1, gusset plate 2, H types web member 3.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 to Fig. 4 is illustrated that existing concrete-filled steel tube arch arch rib truss H type web member coupling configurations.
Fig. 1,2 are shown two adjacent ends of web member 3 and are connected using high-strength bolt with gusset plate 2, the insertion string of gusset plate 2
Inside bar 1, welded with chord member inside and outside wall.Using the structure, fluting is needed on chord member steel pipe, there is weld seam in interior outside,
Complicated construction technique, processing and manufacture are highly difficult.
Fig. 3,4 are shown two adjacent ends of web member 3 and gusset plate 2 and are connected using high-strength bolt, gusset plate 2 and chord member
1 outer wall is welded.The structure is the modified of structure shown in Fig. 1, and without fluting on chord member steel pipe, there is weld seam in only outside, applies
Work technique is relatively easy, but the end of web member 3 is still connected with gusset plate 2 using high-strength bolt, and the splicing difficulty at scene does not reduce,
The oversized node secondary internal forces for bringing of gusset plate do not give reduction.
Reference picture 5 and Fig. 6, concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations of the invention, including string
Bar 1, gusset plate 2 and H types web member 3, gusset plate 2 is welded on the outer wall of chord member 1.The end of the H types web member 3 and gusset plate 2
Butt welding, can be adjusted by two ends butt weld to stitching error, very convenient.The end of gusset plate 2 using circular arc with
The smoother connection of chord member 1.Gusset plate 2 has effectively neutralized two internal force of web member, reduces the stress of gusset plate 2, gusset plate 2 and H
Size is smaller when the junction node board size of type web member 3 relatively bolts connection, the both sides of gusset plate 2 when making gusset plate 2 be connected with chord member
Can also be unlikely to cause gusset plate 2 oversized using the transition of large radius arc form, not only node second inner force is smaller, and
Stress concentration effectively is prevented, anti-fatigue performance is extremely superior.
Using this new all welded construction, it is not only simple in structure, and easy construction, the anti-fatigue performance of arch rib truss is also
Very big raising is arrived, for railway concrete filled steel tube arch rib purlin frame provides technical guarantee using all welded construction.
The above is the concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations of the present invention that explain through diagrams
Some principles, be not intended to by the present invention be confined to shown in and described concrete structure and the scope of application in, it is therefore every all
The corresponding modification that may be utilized and equivalent, belong to apllied the scope of the claims of the invention.
Claims (1)
1. concrete-filled steel tube arch arch rib truss H types web member all welded type coupling configuration, including chord member (1), gusset plate (2) and H type abdomens
Bar (3), gusset plate (2) is welded on the outer wall of chord member (1), it is characterized in that：The end of the H types web member (3) and gusset plate (2)
Butt welding, gusset plate (2) end is using circular arc and chord member (1) smoother connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188557.6A CN106835950A (en) | 2017-03-27 | 2017-03-27 | Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188557.6A CN106835950A (en) | 2017-03-27 | 2017-03-27 | Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106835950A true CN106835950A (en) | 2017-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710188557.6A Pending CN106835950A (en) | 2017-03-27 | 2017-03-27 | Concrete-filled steel tube arch arch rib truss H type web member all welded type coupling configurations |
Country Status (1)
| Country | Link |
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| CN (1) | CN106835950A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980295A (en) * | 2020-08-26 | 2020-11-24 | 长安大学 | Truss structure adopting rectangular steel pipe concrete chord member with batten plate openings |
| CN113982630A (en) * | 2021-10-29 | 2022-01-28 | 成都未来智隧科技有限公司 | Tunnel supporting structure |
Citations (6)
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|---|---|---|---|---|
| JP2002121822A (en) * | 2000-10-16 | 2002-04-26 | Ps Corp | Joint structure of steel concrete composite truss and erection method of steel concrete composite truss |
| RU2407852C1 (en) * | 2009-09-24 | 2010-12-27 | Открытое акционерное общество по проектированию строительства мостов "Институт Гипростроймост" | Unit of lattice truss and method of its manufacturing |
| CN102031752A (en) * | 2010-12-30 | 2011-04-27 | 上海市城市建设设计研究院 | All-welded integral node |
| CN102505761A (en) * | 2011-12-13 | 2012-06-20 | 中船第九设计研究院工程有限公司 | Connection structure of steel pipe truss nodes |
| CN203603022U (en) * | 2013-11-25 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Butt joint type joint of railway steel truss girder |
| CN106088360A (en) * | 2016-07-08 | 2016-11-09 | 中国航空规划设计研究总院有限公司 | A kind of large span two-tube lower edge of list truss structure connects node and truss structure |
-
2017
- 2017-03-27 CN CN201710188557.6A patent/CN106835950A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002121822A (en) * | 2000-10-16 | 2002-04-26 | Ps Corp | Joint structure of steel concrete composite truss and erection method of steel concrete composite truss |
| RU2407852C1 (en) * | 2009-09-24 | 2010-12-27 | Открытое акционерное общество по проектированию строительства мостов "Институт Гипростроймост" | Unit of lattice truss and method of its manufacturing |
| CN102031752A (en) * | 2010-12-30 | 2011-04-27 | 上海市城市建设设计研究院 | All-welded integral node |
| CN102505761A (en) * | 2011-12-13 | 2012-06-20 | 中船第九设计研究院工程有限公司 | Connection structure of steel pipe truss nodes |
| CN203603022U (en) * | 2013-11-25 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Butt joint type joint of railway steel truss girder |
| CN106088360A (en) * | 2016-07-08 | 2016-11-09 | 中国航空规划设计研究总院有限公司 | A kind of large span two-tube lower edge of list truss structure connects node and truss structure |
Non-Patent Citations (1)
| Title |
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| 赵人达主编: "《大跨度铁路桥梁》", 31 March 2012 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980295A (en) * | 2020-08-26 | 2020-11-24 | 长安大学 | Truss structure adopting rectangular steel pipe concrete chord member with batten plate openings |
| CN113982630A (en) * | 2021-10-29 | 2022-01-28 | 成都未来智隧科技有限公司 | Tunnel supporting structure |
| CN113982630B (en) * | 2021-10-29 | 2024-04-05 | 成都未来智隧科技有限公司 | Tunnel supporting structure |
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Application publication date: 20170613 |