CN101074553A - Medium-spanning steel-pipe concrete truss bridge - Google Patents
Medium-spanning steel-pipe concrete truss bridge Download PDFInfo
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- CN101074553A CN101074553A CN 200710049307 CN200710049307A CN101074553A CN 101074553 A CN101074553 A CN 101074553A CN 200710049307 CN200710049307 CN 200710049307 CN 200710049307 A CN200710049307 A CN 200710049307A CN 101074553 A CN101074553 A CN 101074553A
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Abstract
The invention discloses a medium span steel tube concrete girder bridge which has the light weight and is simple to install, especially proper for the mountain expressway. It includes the main girder set at the top of the pier which is made up of the lower boom tube, top boom framework and many siphonets set in space and with obliquity. The two ends of every siphoned are connected with the lower boom tube and the top framework to form the girder bridge of triangular transect. The lower boom tube connected t the pier is the steel tube concrete. The invention can improve the bridge constructing speed and decrease the cost.
Description
Technical field
The present invention relates to bridge, particularly a kind of middle span steel-pipe concrete truss bridge.
Background technology
Mountainous area highway landform, geological conditions complexity, the earthquake intensity height, the bridge pier height can be found everywhere greater than 40 meters bridge.Adopt the continuous rigid frame bridge of former 40 meters, 50 meters simple T beams or middle span, because of deadweight is too big, the earthquake horizontal loading produces very big moment of flexure, causes that pile foundation quantity is big, buried depth long, the bridge pier sectional dimension is sturdy, and amount of reinforcement is 500～700kg/m nearly
2It is very difficult that transport of materials, member set up installation, causes the bridge cost too high, exposed limitation and weakness that the bridge that adopts traditional material uses.Therefore, under new environment, quoting Materials with High Strength, alleviate deadweight, develop new construction, simplify the new bridge type scheme of construction technology, is the inevitable requirement of Mountainous Highway Construction to faster and better development.
Summary of the invention
Technical problem to be solved by this invention provides a kind of middle span steel-pipe concrete truss bridge, and this beam bridge has lightweight construction and member sets up the easy-to-install characteristics, is particularly suitable for applying in the construction of mountainous area highway.
The technical solution adopted for the present invention to solve the technical problems is: middle span steel-pipe concrete truss bridge of the present invention, comprise the girder that is set up in the bridge pier top, it is characterized in that: described girder is provided with by lower chord tube, wind up skeleton and some intervals and has in length and breadth that the cornical to the inclination angle constitutes, the upper/lower terminal of each cornical is connected to form its cross section girder truss triangular in shape with lower chord tube, the skeletal fixation of winding up respectively, and what the lower chord tube that is connected with bridge pier formation adopted is concrete filled steel tube.
As a preferred embodiment of the present invention, described girder is the framing structure, promptly at it left and right girder truss is set respectively laterally, and left and right girder truss connects as one by connecting elements.
The invention has the beneficial effects as follows that adopt the steel pipe concrete pipe girder truss, lightweight construction and member set up simple installation, can increase substantially bridge construction speed, reduce the bridge cost, help accelerating the development of mountainous area highway.
Description of drawings
This manual comprises following four width of cloth accompanying drawings:
Fig. 1 is the ordinary construction figure of middle span steel-pipe concrete truss bridge middle girder facade of the present invention;
Fig. 2 is the ordinary construction figure in middle span steel-pipe concrete truss bridge middle girder of the present invention cross section;
Fig. 3 be in the middle span steel-pipe concrete truss bridge of the present invention cornical with wind up the joint construction figure of skeleton;
Fig. 4 is that middle span steel-pipe concrete truss bridge middle girder of the present invention is connected supporting construction figure with bridge pier.
Component, toponym and pairing mark among the figure: lower chord tube 11, the skeleton 12 that winds up, cornical 13, crossbeam 20, diagonal web member 21, horizontal connecting rod 22, bearing 30, the seat of honour 31, following 32, pot rubber bearing 33.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1, middle span steel-pipe concrete truss bridge of the present invention comprises the girder that is set up in the bridge pier top, and described girder is provided with by lower chord tube 11, wind up skeleton 12 and some intervals and has in length and breadth that the cornical 13 to the inclination angle constitutes.With reference to Fig. 2, the upper/lower terminal of each cornical 13 is fixedly connected to form its cross section girder truss triangular in shape with lower chord tube 11, the skeleton 12 that winds up respectively, and what the lower chord tube 11 that is connected with bridge pier formation adopted is concrete filled steel tube.
With reference to Fig. 2, described girder adopts the framing structure design usually, promptly at it left and right girder truss is set respectively laterally, and left and right girder truss connects as one by connecting elements.As a kind of typical configuration mode, with reference to Fig. 3, described connecting elements comprises and is arranged on the crossbeam 20 of whenever striding the fulcrum place, diagonal web member 21, horizontal connecting rod 22 to fixedly connected with the lower chord tube 11 of left and right girder truss respectively in the two ends of crossbeam 20.Diagonal web member 21 is V-shaped in the girder cross section, fixedlys connected with lower chord tube 11 in this lower end to diagonal web member 21, then fixedlys connected with the cornical 13 of left and right girder truss respectively in its upper end.Laterally connecting rod 22 is fixedlyed connected with each cornical 13 on left and right girder truss top.
Shown in Fig. 4 is a kind of power transmission connected mode between girder truss and the bridge pier.With reference to this figure, described left and right girder truss has lower chord tube 11 to be connected with bridge pier formation by the bearing 30 that is fixedly installed on the bridge pier top.Described bearing 30 is made of the seat of honour 31, following 32 and pot rubber bearing 33, and wherein fixedly connected with lower chord tube 11 in the seat of honour 31, and following seat 32 is anchored in the bridge pier top, and pot rubber bearing 33 is arranged between the seat of honour 31, following 32.
Middle span steel-pipe concrete truss bridge of the present invention adopts the steel pipe concrete pipe girder truss, have lightweight construction and member and set up the easy-to-install characteristics, can increase substantially bridge construction speed, reduce the bridge cost, help accelerating the development of mountainous area highway.
Drag grand bridge of crow to specify as follows with Jassy, Sichuan (Yaan-Xichang) speedway in planning to build as application example of the present invention:
1, layout is striden in the hole
Drag the grand bridge in black river to be positioned at Tuo Wu township, Mianning County, Sichuan Province, national highway 108 lines pass through traffic convenience from planning to build the bridge location district.This bridge starting point mileage K182+132.31 rice, the settled mileage K183+662.15 rice of selecting, 1529.84 meters of bridge total lengths, the design width of roadway is 24.50m, and (47.43+5 * 46.75+47.43)+(47.43+7 * 46.75+47.43)+(47.43+7 * 46.75+47.43)+(the rice of 47.43+5 * 46.75+47.43) is striden and is arranged as in the full-bridge hole; Substructure adopts two kinds of forms, and high pier adopts concrete filled steel tube combination lattice bridge pier, cushion cap, pile foundation, and short bridge pier adopts pile (pier) formula bridge pier and abutment;
2, full bridge structure system
Because this bridge bridge location place, earthquake intensity shows by structural calculation up to the IX level, Dang Dun, when beam is fixedly connected, all bridge piers are stressed jointly for spanning connection (between two shrinkage joint), bridge pier and pile foundation are stressed rationally, construction costs is most economical, therefore, design is fixedlyed connected bridge pier with girder.But, rice surplus this bridge bridge pier height maximum 40, the bridge pier flexibility is not enough to the requirement of satisfied temperature and girder shrinkage and creep load, therefore, 7.0 centimetres of maximum bearing horizontal movements are adopted in design, after arriving this deflection, bearing steel basin pins, and becomes the fixedly connected structure under the seismic loading and joins bridge pier stressed jointly (bridge pier top maximum horizontal displacement is 19 centimetres under the seismic loading) entirely.This bridge Yaan bank route maximum longitudinal grade is 3.9%, according to becoming the bridge use experience to show, and under the action of long-term load, the possibility of the oriented lower one end slippage of girder beam body.This design at No. 0 abutment place, is provided with the stopping means that an allowable temperature causes 3.0 centimetres of distortion, guarantees bridge main beam two ends dilatation unanimity.
3, curve design
This bridge location is on the less curve of radius, and it is straight line that the girder truss is designed to truss internode spacing, and the node place is the curvilinear motion point, promptly with the processing mode in " directly " generation " song ".The upper limb bridge deck for the cantilever of the node of guaranteeing to wind up radially appearance with, cantilever treatment measures of personal attendant's curvilinear motion radially between node.Be positioned at the curve bridge pier, bent cap, pier stud are designed to radially arrange, the treatment measures that the inside and outside span length of girder does not wait.
4, girder structure
Girder is 46.75 meters, and (place, shrinkage joint is provided with bearing length, long 47.43 meters of end bay) steel pipe truss continuous beam, 440 centimetres of center deck-moldings, girder internode spacing is 419.8 centimetres, in to stride lower chord tube be 760 * 16 millimeters steel pipes of a Φ, end bay lower chord tube thickness of steel pipe is 24,20,18 millimeters three kinds according to diverse location, perfusion C60 concrete in the lower chord tube steel pipe; Cornical is 377 millimeters steel pipes of Φ, and wall thickness is 8,10,12,14,16,18 millimeters according to diverse location; The skeleton that winds up is thick 20 centimetres prestressed reinforced concrete (concrete class is C50) structure, and cornical node place is horizontally arranged with high 40 centimetres prestressed reinforced concrete rib.Girder laterally be the design of left and right framing, and every width of cloth bridge is formed triangle by concrete filled steel tube lower chord tube, steel pipe cornical and the prestressed reinforced concrete skeleton that winds up.The skeleton cantilever that winds up is wide to be 340 centimetres (inboard is 339 centimetres), and twice chamfering of outrigger base uprises formation, and the skeleton two cornical spacings of winding up are 533 centimetres, and vertical rib place, both sides height is 64 centimetres, and span centre is high 20 centimetres, and the girder cross section is arranged as shown in Figure 2.
5, the upper and lower joint structure of cornical
The girder cornical is in length and breadth to the inclination angle, taken into account that bridge deck are stressed, factor such as steel bundle layout and tensioning process, the stress level of cornical own, the joint construction of the cornical and the skeleton that winds up, adopt steel pipe and perforate steel plate, vertically 245 * 14 millimeters seamless steel pipe welding of Φ, reinforcing bar lateral direction penetrating perforate steel plate, or pass from perforate steel plate lower edge, form and the anchor connection of bridge floor steel concrete.Web member passes through weld seam mutually with the direct employing of lower chord tube and is welded to connect, and requires the cornical intersection to adopt cutter special to finish, and guarantees the physical dimension of groove intersection.
6, the horizontal joint construction design of two width of cloth bridge main beams
It is that a triangle is formed girder truss that this bridge designs every width of cloth bridge, in order to improve the whole anti-twisting property of girder, strides the fulcrum place whenever, and crossbeam is set.Crossbeam corresponding vertically web member setting in place, shrinkage joint is " I " shape.The corresponding bearing of all the other the bearing place crossbeams both sides first road diagonal web member is provided with, and is " V " font.Simultaneously, the apex in every width of cloth bridge is provided with horizontal connecting rod along the transverse truss correspondence position, as shown in Figure 3.
7, pier, beam joint construction
Girder and bridge pier joint construction be, at girder lower edge steel pipe 5 of vertical floors is set, and the bottom is provided with horizontal steel plate and floor is welded to connect, and forms the bearing seat of honour.At steel pipe lattice capital pinner is set, anchor slab is set on the pinner, form following of bearing, between the upper and lower steel plate of bearing pot rubber bearing is set, girder is connected power transmission with bridge pier, as shown in Figure 4.
8, bridge pier structure structure
High about 40 meters of the highest pier of this bridge bridge pier, through relatively proving, high pier adopts concrete filled steel tube lattice bridge pier, pile foundation, and squat pier adopts the queen post reinforced concrete bridge pier.Concrete filled steel tube lattice bridge pier adopts 720 * 12 (14) millimeters steel pipes of four external diameter Φ, and interior filling C50 concrete vertically adopts parallel single limb steel pipe to connect, and laterally adopts the parallel steel tube truss to connect.Steel pipe lattice bridge pier top (bent cap lower edge) is 186 centimetres of top widths vertically, by putting the slope at 1: 50.Bridge pier laterally is upright, and post limb center to center distance is 1225 centimetres.A diameter be set be 180 centimetres pile foundation under each steel core concrete column, height be set be 300 centimetres reinforced concrete rectangular framework cushion cap between steel core concrete column and pile foundation, form stressed integral body, on the cushion cap in 300 cm range, concrete filled steel tube outsourcing 15 cm thick C30 steel concrete overcoats.
9, abutment structure construction
Full-bridge two sides abutment all is designed to the pile formula, and the stake footpath is 1.8 meters, and the pile top is provided with bent cap, and bent cap root height is 146 centimetres, and the end height is 100 centimetres.On the abutment bent cap parados is set, parados is thick to be 60 centimetres reinforced concrete structure, and height is about 500 centimetres, for retaining soil and the resistance collision ability of strengthening parados, apart from horizontal 250 centimeters of bearing upstream and downstream, being provided with height is 320 centimetres, and wide is 50 centimetres trapezoidal deep floor.The parados top is placed attachment strap and the shrinkage joint is installed, and No. 0 the abutment parados left and right sides is provided with 30 centimetres ear wall, puts 1: 1 awl slope.Behind No. 32 abutment platforms and both sides are provided with counterfort retaining wall.The former working drawing design scheme of this bridge is 38 * 40.4 meters freely-supported T beam bridges, and full-bridge length is 153650 centimetres, and wide is 24.5 meters, and substructure is that hollow pier is joined pile foundation, and shorter bridge pier adopts the rectangle hollow twin shaft pier directly to imbed foundation.
Now the principal works quantity with former working drawing design quantity and this steel-pipe concrete truss is compared as follows table (working drawing with ratio of precision).
Full-bridge principal works quantity comparison sheet
| Scheme | The principal works material quantity | |||||
| Ordinary concrete | The pile foundation concrete | The steel bundle | Steel pipe | Reinforcing bar | Shaped steel | |
| m 3 | t | |||||
| Former freely-supported T beam bridge | 61472 | 16276 | 795 | 112 | 10714 | 209 |
| The steel pipe truss beam bridge | 24492 | 7541 | 501 | 2678 | 4419 | 716 |
| The engineering quantity increase and decrease | -36980 | -8735 | -294 | 2566 | -6295 | 507 |
Relatively can be as can be seen from last table, former working drawing design freely-supported T beam material index is as follows, and concrete is: 2.065m
3/ m
2Steel are 314.3Kg/m
2Concrete-filled steel tube truss continuous beam material index is as follows, and concrete is: 0.855m
3/ m
2Steel are 221.8Kg/m
2Therefore, the concrete filled steel tube through girder is built bridge and is had tangible economic advantages than freely-supported T beam.
In addition, designing and calculating and experiment show that middle span steel-pipe concrete truss bridge of the present invention is used for the bridge of high pier bridge, especially high intensity Zone of mountain area, and technical performance is good, economical rationality; The construction costs saving is remarkable, and bridge pier is high more, and pile foundation is long more, and earthquake intensity is big more, and economy is good more; Belong to the typical bridge scheme of resource-conserving, the friendly type of environmental protection, technical ability intensity, and have the broad space of applying to areas such as cities and towns, Plains.
Claims (7)
1. middle span steel-pipe concrete truss bridge, comprise the girder that is set up in the bridge pier top, it is characterized in that: described girder is by lower chord tube (11), the skeleton that winds up (12) and some that be provided with and have in length and breadth that the cornical (13) to the inclination angle constitutes at interval, the upper/lower terminal of each cornical (13) is fixedly connected to form its cross section girder truss triangular in shape with lower chord tube (11), the skeleton that winds up (12) respectively, and what the lower chord tube (11) that is connected with bridge pier formation adopted is concrete filled steel tube.
2. middle span steel-pipe concrete truss bridge as claimed in claim 1 is characterized in that: described girder is the framing structure, promptly at it left and right girder truss is set respectively laterally, and left and right girder truss connects as one by connecting elements.
3. middle span steel-pipe concrete truss bridge as claimed in claim 2 is characterized in that: described connecting elements comprises and is arranged on the crossbeam (20) of whenever striding the fulcrum place to fixedly connected with the lower chord tube (11) of left and right girder truss respectively in the two ends of this crossbeam (20).
4. middle span steel-pipe concrete truss bridge as claimed in claim 3, it is characterized in that: described connecting elements also comprises being arranged on whenever strides a pair of at the V-shaped diagonal web member in girder cross section (21) of fulcrum place, fixedlying connected with lower chord tube (11) in this lower end to diagonal web member (21), then fixedlys connected with the cornical (13) of left and right girder truss respectively in its upper end.
5. as claim 3 or 4 described middle span steel-pipe concrete truss bridges, it is characterized in that: described: described connecting elements comprises also and is arranged on the horizontal connecting rod (22) of whenever striding the fulcrum place that this horizontal connecting rod (22) is fixedlyed connected with each cornical (13) on left and right girder truss top.
6. middle span steel-pipe concrete truss bridge as claimed in claim 2 is characterized in that: described left and right girder truss has lower chord tube (11) to be connected with bridge pier formation by the bearing (30) that is fixedly installed on the bridge pier top.
7. middle span steel-pipe concrete truss bridge as claimed in claim 6, it is characterized in that: described bearing (30) is made of the seat of honour (31), following (32) and pot rubber bearing (33), wherein fixedly connected with lower chord tube (11) seat of honour (31), following seat (32) is anchored in the bridge pier top, and pot rubber bearing (33) is arranged between the seat of honour (31), following (32).
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| CN 200710049307 CN101074553A (en) | 2007-06-15 | 2007-06-15 | Medium-spanning steel-pipe concrete truss bridge |
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| CN102152038A (en) * | 2011-04-18 | 2011-08-17 | 武船重型工程有限公司 | Installation method of K brace of steel pipe truss arch |
| CN102493329A (en) * | 2011-12-05 | 2012-06-13 | 天津城市建设学院 | Concrete-filled tube web member combined box girder |
| CN102535328A (en) * | 2012-02-10 | 2012-07-04 | 中铁第五勘察设计院集团有限公司 | In-pipe prestressed steel-pipe truss composite simply-supported beam structure |
| CN103210148A (en) * | 2010-09-27 | 2013-07-17 | 崔夏祯 | Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same |
| 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 |
| CN103669201A (en) * | 2013-12-29 | 2014-03-26 | 长安大学 | Y-shaped pier used for steel pipe concrete truss girder |
| CN104533017A (en) * | 2014-12-12 | 2015-04-22 | 苏州工业园区设计研究院股份有限公司 | Fish belly type longspan vierendeel truss structure |
| CN106090433A (en) * | 2016-08-09 | 2016-11-09 | 中铁大桥局集团有限公司 | The support means of a kind of pipeline of passing a bridge and be provided with the bridge of this support means |
| CN106087697A (en) * | 2016-07-08 | 2016-11-09 | 苏交科集团股份有限公司 | Double triangle chord member prefabricated bridge combination beams and method for rapidly splicing |
| CN106192756A (en) * | 2016-07-08 | 2016-12-07 | 苏交科集团股份有限公司 | String wire bar concrete slab assembled combined bridge and construction method thereof |
| CN108049301A (en) * | 2018-01-25 | 2018-05-18 | 中铁第勘察设计院集团有限公司 | The combining structure overpass of Midspan sag |
| CN109440625A (en) * | 2018-12-07 | 2019-03-08 | 中交公路规划设计院有限公司 | Steel reinforced concrete combines continuous rigid frame steel truss girder bridge |
| CN114934434A (en) * | 2022-06-27 | 2022-08-23 | 四川省交通勘察设计研究院有限公司 | Prefabricated steel truss concrete small box girder and prefabricated assembled type combined girder bridge comprising same |
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2007
- 2007-06-15 CN CN 200710049307 patent/CN101074553A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103210148B (en) * | 2010-09-27 | 2015-04-29 | 崔夏祯 | Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same |
| CN103210148A (en) * | 2010-09-27 | 2013-07-17 | 崔夏祯 | Truss structure having an open-section upper chord member and a production method for the same, and a truss bridge using the truss structure having an open-section upper chord member and a method for constructing the same |
| CN102152038A (en) * | 2011-04-18 | 2011-08-17 | 武船重型工程有限公司 | Installation method of K brace of steel pipe truss arch |
| CN102152038B (en) * | 2011-04-18 | 2013-12-18 | 武船重型工程股份有限公司 | Installation method of K brace of steel pipe truss arch |
| CN102493329A (en) * | 2011-12-05 | 2012-06-13 | 天津城市建设学院 | Concrete-filled tube web member combined box girder |
| CN102535328A (en) * | 2012-02-10 | 2012-07-04 | 中铁第五勘察设计院集团有限公司 | In-pipe prestressed steel-pipe truss composite simply-supported beam structure |
| 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 |
| CN103669201A (en) * | 2013-12-29 | 2014-03-26 | 长安大学 | Y-shaped pier used for steel pipe concrete truss girder |
| CN103669201B (en) * | 2013-12-29 | 2015-06-10 | 长安大学 | Y-shaped pier used for steel pipe concrete truss girder |
| CN104533017A (en) * | 2014-12-12 | 2015-04-22 | 苏州工业园区设计研究院股份有限公司 | Fish belly type longspan vierendeel truss structure |
| CN106087697A (en) * | 2016-07-08 | 2016-11-09 | 苏交科集团股份有限公司 | Double triangle chord member prefabricated bridge combination beams and method for rapidly splicing |
| CN106192756A (en) * | 2016-07-08 | 2016-12-07 | 苏交科集团股份有限公司 | String wire bar concrete slab assembled combined bridge and construction method thereof |
| CN106087697B (en) * | 2016-07-08 | 2018-08-07 | 苏交科集团股份有限公司 | Double triangle chord member-prefabricated bridge combination beams and method for rapidly splicing |
| CN106192756B (en) * | 2016-07-08 | 2018-08-07 | 苏交科集团股份有限公司 | String wire bar-concrete slab assembled combined bridge and its construction method |
| CN106090433A (en) * | 2016-08-09 | 2016-11-09 | 中铁大桥局集团有限公司 | The support means of a kind of pipeline of passing a bridge and be provided with the bridge of this support means |
| CN108049301A (en) * | 2018-01-25 | 2018-05-18 | 中铁第勘察设计院集团有限公司 | The combining structure overpass of Midspan sag |
| CN109440625A (en) * | 2018-12-07 | 2019-03-08 | 中交公路规划设计院有限公司 | Steel reinforced concrete combines continuous rigid frame steel truss girder bridge |
| CN109440625B (en) * | 2018-12-07 | 2022-03-08 | 中交公路规划设计院有限公司 | Steel-concrete combined continuous rigid frame steel truss bridge |
| CN114934434A (en) * | 2022-06-27 | 2022-08-23 | 四川省交通勘察设计研究院有限公司 | Prefabricated steel truss concrete small box girder and prefabricated assembled type combined girder bridge comprising same |
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