CN103911948A - Transverse truss type structure applied to wide concrete rib plate beam and construction method of structure - Google Patents
Transverse truss type structure applied to wide concrete rib plate beam and construction method of structure Download PDFInfo
- Publication number
- CN103911948A CN103911948A CN201410129117.XA CN201410129117A CN103911948A CN 103911948 A CN103911948 A CN 103911948A CN 201410129117 A CN201410129117 A CN 201410129117A CN 103911948 A CN103911948 A CN 103911948A
- Authority
- CN
- China
- Prior art keywords
- concrete
- rib
- web member
- welding
- bridge
- 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.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a transverse truss type structure applied to a wide concrete rib plate beam and a construction method of the structure. The tip of each of an upper chord and a lower chord is connected with an end web member. The middle of each of the upper chord and the lower chord is connected with a middle web member. The end web member is connected with a concrete beam rib. The upper chord is connected with a prefabricated concrete bridge deck slab and a concrete stem rib through a shear nail, bridge deck slab concrete along-bride-direction and transverse-bridge-direction cast-in-site seams. A pulling-preventing key is disposed at the connection of the concrete stem rib and the beam rib. The construction method includes: assembling and welding the upper chord, the lower chord and the end web member to form a frame, welding a node plate, welding or bolting middle web members, welding the shear nail and the pulling-preventing key; conveying to the field to prepare for mounting; mounting a beam rib bottom mold, hoisting and adjusting in position; mounting a beam rib lateral mold and a stem rib bottom mold, binding reinforced steel bars, and mounting a prestress pipeline; pouring beam rib and stem rib concrete, allowing the prefabricated bridge deck slab to be in position, and pouring the bridge deck slab concrete along-bride-direction and transverse-bridge-direction cast-in-site seams. The structure has the advantages that under vehicle load, the upper chord and the prefabricated concrete bridge deck slab are stressed jointly, and the tension force borne by the lower chord is transmitted to the beam rib.
Description
Technical field
The present invention relates to a kind of horizontal purlin formula steel work and construction method thereof that is applied to wide concrete rib plate-girder.
Background technology
Concrete rib plank beams because of its structure succinct, stressed clear and definite, construction is simple, in cable stayed bridge, arch bridge and suspension bridge, has application, especially in span 500m and following cable stayed bridge, be most widely used.But along with economic development, the traffic volume increase, bridge floor number of track-lines is by former 4 common tracks, be increased to 6,8 tracks even more, the wide also corresponding increase of bridge, conventional prestressed concrete crossbeam deadweight proportion increased in the past, the wide beam effect that prestressing force causes increases, and economy, the technical advantage of concrete rib plank beams are no longer obvious.
Concrete rib plate-girder is typical beam stress system in length and breadth, force path: vehicular load is through concrete slab, crossbeam, and both sides concrete beam rib reaches drag-line or hoist cable.Its middle cross beam is crucial Force transmission parts, is mainly subject to shearing and moment of flexure, and its physical dimension is subject to bridge deck width control.
At present crossbeam generally adopts prestressed reinforced concrete construction, along with the increase of the traffic volume and number of track-lines, the physical dimension of crossbeam and to join Suo Zengjia obvious, continues to adopt prestressed concrete crossbeam to have the following deficiency:
(1) aspect stressed, the moment of flexure of crossbeam increases along with length is square progression, and causing its deadweight and joining rope amount increases, and wide beam effect is obvious.
(2) aspect economy, drag-line, king-tower (or arch rib), basis and main girder construction temporary structure are along with crossbeam deadweight increases and increases, and economic advantages reduce.
(3) aspect durability, due to wide beam effect, there is the risk of cracking, need to take extra measure to guarantee durability.
(4), aspect construction, crossbeam length increases, deadweight increases, the easily deformable downwarp of construction hanging basket crossbeam.
For solving wide bridge floor prestressed cross beams above shortcomings, also there are at present some good tries, for example establish the edge of a wing nonmotorized vehicle lane and sidewalk etc. are placed in outside crossbeam scope, but flange width is limited, this measure is failed from solving in fact the problem of wide bridge floor prestressed cross beams existence.
Summary of the invention
The object of the invention is for above-mentioned present situation, aim to provide one and can make upper chord and the common pressurized of precast concrete bridge deck, the independent bearing tension of lower chord, and can be transmitted to horizontal purlin formula steel work and the construction method thereof of the wide concrete rib plate-girder of being applied to of beam rib.
The implementation of the object of the invention is, is applied to the horizontal purlin formula steel work of wide concrete rib plate-girder, and upper chord, lower chord termination connect end web member, middlely connects middle web member by gusset plate, and end web member is by shearing nail joint concrete beam rib; Upper chord by WELDING STUDS, bridge deck concrete along bridge to cast-in-place seam, the cast-in-place precast concrete bridge deck that sew up of bridge deck direction across bridge, the coagulation balk side of body; Establish resistance to plucking key at the coagulation balk side of body with concrete beam rib junction.
The construction method that is applied to the horizontal purlin formula steel work of wide concrete rib plate-girder, concrete steps are as follows:
1) upper and lower chord member and end web member assembly welding become framework, welding node plate, web member in welding or bolt, welding WELDING STUDS and resistance to plucking key;
2) framework of welding node plate, middle web member, WELDING STUDS and resistance to plucking key being transported to on-the-spot preparation installs;
3) mounting rail rib bed die on Hanging Basket or support, the framework of welding node plate, middle web member, WELDING STUDS and resistance to plucking key lifts and adjusts in place;
4) mounting rail rib side form and stalk side of body bed die, assembling reinforcement, prestressed pipeline;
5) cast beam rib and stalk side of body concrete maintenance are to the length of time;
6) lay transverse sealing rubber strip at the masthead that winds up of welding node plate, middle web member, WELDING STUDS and resistance to plucking key, and hoisting prefabricated concrete slab is in place;
7) longitudinal cast-in-place seam construction suspension bracket is installed, is laid longitudinal sealing rubber strip on suspension bracket top;
8) cast bridge deck concrete is along bridge to cast-in-place seam, the cast-in-place seam of bridge deck direction across bridge, and maintenance, to the length of time, is removed interim suspension bracket.
Adopt upper chord of the present invention and end web member to be combined with concrete rib plate-girder by WELDING STUDS and resistance to plucking key, under Vehicle Load, upper chord and the common pressurized of precast concrete bridge deck, the independent bearing tension of lower chord, be transmitted to beam rib through the vertical shear of web member transmission by the WELDING STUDS between end web member and beam rib.
The present invention can give full play to concrete compression, and the mechanical property of steel tension effectively reduces the deadweight of wide concrete rib plate-girder transversary, has reduced the scale on drag-line, tower (arch rib) and basis, has evaded wide beam effect; Adopt prefabrication, accelerating construction progress greatly, saves construction cost, remarkable in economical benefits.
Accompanying drawing explanation
Fig. 1 is facade structures schematic diagram of the present invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the B-B sectional drawing of Fig. 1;
Fig. 4 is the structure top view of the resistance to plucking key pipe in Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
With reference to Fig. 1-4, upper chord 1, lower chord 2 terminations connect end web member 3, centre connects middle web member 4 by gusset plate 5, end web member 3 connects concrete beam rib 10 by WELDING STUDS 6, upper chord 1 connects precast concrete bridge deck 8 along bridge to cast-in-place seam 11, the cast-in-place seam 12 of bridge deck direction across bridge by WELDING STUDS 6, bridge deck concrete, the coagulation balk side of body 9, establishes resistance to plucking key 7(in upper chord 1 and concrete beam rib 10 junctions and sees Fig. 4).
Upper chord 1, lower chord 2 and end web member 3 cross sections are that " work " font cross section, middle web member 4 cross sections are " L " type cross section, and the U-shaped reinforcing bar that resistance to plucking key 7 is semicircular arc for one end connects by weld seam or bolt between each parts.
Upper chord 1 and end web member 3 are combined with concrete rib plate-girder by WELDING STUDS 6 and resistance to plucking key 7, under Vehicle Load, the common pressurized of upper chord and bridge deck, the independent bearing tension of lower chord, be transmitted to beam rib through the vertical shear of web member transmission by the WELDING STUDS between end web member and beam rib.
The construction method that is applied to the horizontal purlin formula steel work of wide concrete rib plate-girder, concrete steps are as follows:
1) upper and lower chord member 1,2 and end web member 3 assembly weldings become framework, welding node plate 5, web member 4 in welding or bolt, welding WELDING STUDS 6 and resistance to plucking key 7;
2) framework of welding node plate, middle web member, WELDING STUDS and resistance to plucking key being transported to on-the-spot preparation installs;
3) mounting rail rib bed die on Hanging Basket or support, the framework of welding node plate, middle web member, WELDING STUDS and resistance to plucking key lifts and adjusts in place;
4) mounting rail rib side form and stalk side of body bed die, assembling reinforcement, prestressed pipeline;
5) cast beam rib and stalk side of body concrete maintenance are to the length of time;
6) lay transverse sealing rubber strip at the masthead that winds up of welding node plate, middle web member, WELDING STUDS and resistance to plucking key, and hoisting prefabricated concrete slab 8 is in place;
7) longitudinal cast-in-place seam construction suspension bracket is installed, is laid longitudinal sealing rubber strip on suspension bracket top;
8) cast bridge deck concrete is along bridge to cast-in-place seam 11, the cast-in-place seam 12 of bridge deck direction across bridge, and maintenance, to the length of time, is removed interim suspension bracket.
Precast concrete bridge deck 8 of the present invention, the impact of reduced concrete shrinkage, creeping.Establish resistance to plucking key 7 at the coagulation balk side of body with concrete beam rib junction, can resist the hogging moment producing at structure end under Local Loads operating mode.
For eliminating the downwarp Δ being produced by framework, prefabricated bridge and deck paving deadweight, guarantee into after bridge laterally linear, the low camber Δ/L in high two ends in the middle of upper chord 1 two ends should have with end web member 3, in formula, L is 1/2 of upper chord 1 length.
The framework that the present invention is made up of upper chord 1, lower chord 2, end web member 3 and middle web member 4 can be at produce in factory, and in the time of produce in factory, upper chord 1 is take two ends and hold web member 3 center line intersection points as basic point rotates up Δ/L radian, the low camber in high two ends in the middle of forming.
Claims (4)
1. be applied to the horizontal purlin formula steel work of wide concrete rib plate-girder, it is characterized in that upper chord, lower chord termination connect end web member, centre connects middle web member by gusset plate, and end web member is by shearing nail joint concrete beam rib; Upper chord by WELDING STUDS, bridge deck concrete along bridge to cast-in-place seam, the cast-in-place precast concrete bridge deck that sew up of bridge deck direction across bridge, the coagulation balk side of body; Establish resistance to plucking key at the coagulation balk side of body with concrete beam rib junction.
2. the horizontal purlin formula steel work that is applied to wide concrete rib plate-girder according to claim 1, it is characterized in that upper chord (1), lower chord (2) and end web member (3) cross section are that " work " font cross section, middle web member (4) cross section are " L " type cross section, the U-shaped reinforcing bar that resistance to plucking key (7) is semicircular arc for one end.
3. the construction method of the horizontal purlin formula steel work that is applied to wide concrete rib plate-girder claimed in claim 1, is characterized in that concrete steps are as follows:
1) upper and lower chord member and end web member assembly welding become framework, welding node plate, web member in welding or bolt, welding WELDING STUDS and resistance to plucking key;
2) framework of welding node plate, middle web member, WELDING STUDS and resistance to plucking key being transported to on-the-spot preparation installs;
3) mounting rail rib bed die on Hanging Basket or support, the framework of welding node plate, middle web member, WELDING STUDS and resistance to plucking key lifts and adjusts in place;
4) mounting rail rib side form and stalk side of body bed die, assembling reinforcement, prestressed pipeline;
5) cast beam rib and stalk side of body concrete maintenance are to the length of time;
6) lay transverse sealing rubber strip at the masthead that winds up of welding node plate, middle web member, WELDING STUDS and resistance to plucking key, and hoisting prefabricated concrete slab is in place;
7) longitudinal cast-in-place seam construction suspension bracket is installed, is laid longitudinal sealing rubber strip on suspension bracket top;
8) cast bridge deck concrete is along bridge to cast-in-place seam, the cast-in-place seam of bridge deck direction across bridge, and maintenance, to the length of time, is removed interim suspension bracket.
4. the construction method of the horizontal purlin formula steel work that is applied to wide concrete rib plate-girder according to claim 3, it is characterized in that upper chord (1) two ends and end web member (3) have the low camber Δ/L in middle high two ends, in formula, Δ is the downwarp being produced by framework, prefabricated bridge and deck paving deadweight, and L is 1/2 of upper chord (1) length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129117.XA CN103911948B (en) | 2014-04-01 | 2014-04-01 | Be applied to horizontal purlin formula steel work and the construction method thereof of wide concrete rib plate-girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410129117.XA CN103911948B (en) | 2014-04-01 | 2014-04-01 | Be applied to horizontal purlin formula steel work and the construction method thereof of wide concrete rib plate-girder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103911948A true CN103911948A (en) | 2014-07-09 |
| CN103911948B CN103911948B (en) | 2016-01-06 |
Family
ID=51037919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410129117.XA Active CN103911948B (en) | 2014-04-01 | 2014-04-01 | Be applied to horizontal purlin formula steel work and the construction method thereof of wide concrete rib plate-girder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103911948B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331646A (en) * | 2019-07-02 | 2019-10-15 | 中铁大桥勘测设计院集团有限公司 | A kind of urban track traffic bondbeam and its construction method |
| CN110331647A (en) * | 2019-07-02 | 2019-10-15 | 中铁大桥勘测设计院集团有限公司 | Urban track traffic bondbeam and its construction method |
| CN111794077A (en) * | 2020-07-10 | 2020-10-20 | 重庆市交通规划勘察设计院有限公司 | A new type of truss-type diaphragm for stiffening steel box girder of a suspension bridge and its operation method |
| CN113668358A (en) * | 2021-08-19 | 2021-11-19 | 中铁第四勘察设计院集团有限公司 | Core plate type steel-concrete combined arch rib structure and construction method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09324406A (en) * | 1996-06-04 | 1997-12-16 | Fujisen Kyoryo Doboku Kk | Floor plate |
| CN202139530U (en) * | 2011-06-22 | 2012-02-08 | 上海市政工程设计研究总院（集团）有限公司 | Single cell box long cantilever and box girder integrated structure |
| JP4977110B2 (en) * | 2008-10-24 | 2012-07-18 | 大成建設株式会社 | Composite digit structure and composite digit construction method |
| CN103215887A (en) * | 2013-04-19 | 2013-07-24 | 中铁工程设计咨询集团有限公司 | Truss connecting beam |
| CN103541299A (en) * | 2012-07-13 | 2014-01-29 | 中铁工程设计咨询集团有限公司 | A top-supporting triangular truss steel truss combined beam |
-
2014
- 2014-04-01 CN CN201410129117.XA patent/CN103911948B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09324406A (en) * | 1996-06-04 | 1997-12-16 | Fujisen Kyoryo Doboku Kk | Floor plate |
| JP4977110B2 (en) * | 2008-10-24 | 2012-07-18 | 大成建設株式会社 | Composite digit structure and composite digit construction method |
| CN202139530U (en) * | 2011-06-22 | 2012-02-08 | 上海市政工程设计研究总院（集团）有限公司 | Single cell box long cantilever and box girder integrated structure |
| CN103541299A (en) * | 2012-07-13 | 2014-01-29 | 中铁工程设计咨询集团有限公司 | A top-supporting triangular truss steel truss combined beam |
| CN103215887A (en) * | 2013-04-19 | 2013-07-24 | 中铁工程设计咨询集团有限公司 | Truss connecting beam |
Non-Patent Citations (1)
| Title |
|---|
| 彭旺虎等: "大跨悬索桥桁架加劲梁的选型和设计", 《公路交通科技》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331646A (en) * | 2019-07-02 | 2019-10-15 | 中铁大桥勘测设计院集团有限公司 | A kind of urban track traffic bondbeam and its construction method |
| CN110331647A (en) * | 2019-07-02 | 2019-10-15 | 中铁大桥勘测设计院集团有限公司 | Urban track traffic bondbeam and its construction method |
| CN110331647B (en) * | 2019-07-02 | 2024-08-23 | 中铁大桥勘测设计院集团有限公司 | Urban rail transit combined beam and construction method thereof |
| CN110331646B (en) * | 2019-07-02 | 2024-11-26 | 中铁大桥勘测设计院集团有限公司 | Urban rail transit combined beam and construction method thereof |
| CN111794077A (en) * | 2020-07-10 | 2020-10-20 | 重庆市交通规划勘察设计院有限公司 | A new type of truss-type diaphragm for stiffening steel box girder of a suspension bridge and its operation method |
| CN113668358A (en) * | 2021-08-19 | 2021-11-19 | 中铁第四勘察设计院集团有限公司 | Core plate type steel-concrete combined arch rib structure and construction method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103911948B (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110582609B (en) | Construction system and method for combined U-shaped reinforcing beam bridge floor | |
| CN204530418U (en) | A kind of steel plate combination beam bridge | |
| CN108221634A (en) | The Wavelike steel webplate I-shaped composite beam bridge of maximum assembling | |
| CN102146658B (en) | Locally uncombined suspension bridge steel-concrete combined bridge deck system and construction method of combined bridge deck system | |
| CN104652242B (en) | Derrick connecting structure used for reinforcing PSC (Pre-stressed Concrete) continuous box girder bridge and construction method | |
| CN105064196B (en) | The fish belly I-shaped combination of prestressing force steel reinforced concrete simply supported girder bridge and its construction method of precast assembly | |
| CN105064200B (en) | Prefabricated and assembled fish-belly truss prestressed steel-concrete composite simply supported beam bridge and its construction method | |
| CN206752312U (en) | Half-through and lower bearing arch bridge steel-concrete combination beam bridge floor series structure | |
| CN104032668B (en) | Half-through steel purlin-Combined concrete continuous steel frame bridge | |
| KR100447013B1 (en) | Beam system composed of asymmetric steel section with web hole and concrete | |
| CN207846187U (en) | A kind of Wavelike steel webplate I-shaped composite beam bridge of maximum assembling | |
| CN113481826A (en) | Prefabricated assembled corrugated steel web combination box girder | |
| CN106930181A (en) | A kind of simple-supported thencontinuous steel reinforced concrete combined bridge hogging moment area structure | |
| KR101366903B1 (en) | Girder having truss section and construction method of bridge and pedestrian overpass using it | |
| CN105178164B (en) | Prefabrication and lifting fish belly Wavelike steel webplate prestressing with bond combined box beam and its construction method | |
| CN105064195B (en) | The fish belly Wavelike steel webplate prestressing with bond steel reinforced concrete combination simply supported girder bridge and its construction method of precast assembly | |
| CN111877182A (en) | Novel construction method for upper structure of multi-chamber continuous UHPC box girder bridge | |
| CN111424546A (en) | Inverted T-shaped steel beam-concrete combined beam structure of small and medium-span bridge and construction method | |
| CN103911948B (en) | Be applied to horizontal purlin formula steel work and the construction method thereof of wide concrete rib plate-girder | |
| CN211522899U (en) | Long-span steel-concrete composite beam convenient to erect by bridge girder erection machine | |
| CN209923753U (en) | Steel plate composite beams and bridges with integral prefabrication of steel main beams and bridge decks | |
| CN106087694B (en) | Assembling steel plate-beams of concrete combined bridge structure and construction method | |
| JP2006009449A (en) | Truss panel girders and precast truss panels | |
| CN109183615B (en) | Multi-main-beam type steel-concrete combined continuous beam | |
| CN103205930A (en) | Structure for continuous transformation of existing simply supported hollow slab girder bridge and construction method of structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |