CN101550674A - Bridge of steel truss-concrete and construction method thereof - Google Patents
Bridge of steel truss-concrete and construction method thereof Download PDFInfo
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- CN101550674A CN101550674A CNA2009101362437A CN200910136243A CN101550674A CN 101550674 A CN101550674 A CN 101550674A CN A2009101362437 A CNA2009101362437 A CN A2009101362437A CN 200910136243 A CN200910136243 A CN 200910136243A CN 101550674 A CN101550674 A CN 101550674A
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Abstract
The invention discloses a bridge of steel truss-concrete structure and a construction method thereof, wherein the bridge comprises a steel truss and a bridge deck of concrete material, the bridge deck is connected with an upper chord of the steel truss by shear nails; spreader bars are fixed between nodes of the upper chord. When constructing, the bridge deck is prefabricated, and then bridge deck is installed onto the erected steel truss by shear nails. The bridge of the invention combines steel and concrete by each feature, and has advantages of both materials; the structure has good integrity and strong wind resistance capability, needs no connect to parallel. The bridge has simple structure, smooth line and low cost, because the concrete slab has big self-bearing capacity and vertical and horizontal beams and connect to parallel are not needed. Besides, the concrete bridge deck slab of the invention can enhance structural stiffness, improve variation because of temperature differential, decrease infection on bridge deck of freeze-thaw in north coldness area, and improve running environment of vehicle at bad weather.
Description
Technical field
The present invention relates to the bridge construction field of engineering technology, specifically, is a kind of nothing bridge of the steel purlin-concrete structure of beam in length and breadth, the invention still further relates to the job practices of this bridge.
Background technology
Be accompanied by the large-scale investment construction of China's infrastructure, how to guarantee making maximization of economic benefit day by day become the problem that engineering circle must solve when structural safety is used, bridge is one of project that technology content is the highest, technical requirements is the most complicated in the engineering field, builds durable in use, economy, the rational bridge construction of function is the target that bridge construction is pursued.This certainly will need the bridge construction technology to constantly bring forth new ideas, develop and advance.
In the different types of rridges structure, mainly contain two kinds by the construction material classification, a kind of is steel bridge, another kind is a concrete bridge.Steel bridge construction is light, and supporting capacity is strong, and intensity height, bridge type commonly used have plate girder, steel case beam, steel truss girder.But steel structure bridge cost height, and, during the steel work pressurized, be subjected to the flexing strength control from the angle of structure stress, particularly steel sheet construction material performance is difficult to bring into play to greatest extent.Concrete bridge is cheap, and compressive property is good.But from great, resistance to tension is very poor.
Based on the quality of two kinds of structures, with two kinds of combinations of materials, reasonably utilize and form the bondbeam structure, can pursue high-performance, economy to the utmost.So plate girder, steel case top surface of the beam occur in succession in conjunction with steel plate bondbeam, the steel case bondbeam of concrete slab, it is big to compare steel beam structure rigidity, compares concrete-bridge and can reduce deck-molding, has given full play to two kinds of materials advantage separately.Received expected effect.
Bondbeam develops into afterwards, the plate girder bondbeam that steel truss girder combines with the concrete carriageway plate occurred.Steel truss girder upper berth bridge deck, originally bridge deck are only as carriageway plate, not as the stressed part of structural entity, the carriageway plate globality is poor, not only need the bridge deck support of beam system in length and breadth, also need to be provided with the plane and connect system's enhancing globality, bear horizontal loading.Begin also gradually to attempt that steel truss girder and concrete slab are combined into integral body by WELDING STUDS and bear structural load jointly.This combination generally is to divide into beam bridge floor system in length and breadth at concrete slab, bridge deck are supported on upper chord and in length and breadth on the beam and combination, compare bridge deck only as carriageway plate, integrated structure makes progress, increased the rigidity of structure, reasonably brought into play the concrete material performance, and the plane connection structure can be set.But owing to be provided with girder construction in length and breadth, jointing is numerous, complex structure, and during installation fee, maintenance is also inconvenient.And bridge deck structure steel using amount is big, also uneconomical.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of simple structure, and power transmission is direct, and it is convenient to construct, be easy to steel purlin-concrete slab integrated structure of checking, keeping in repair,, save steel to give full play to the effect of concrete slab, improve the rigidity of structure, optimize highway bridge system.
In order to solve the problems of the technologies described above, the invention provides a kind of bridge of steel purlin-concrete structure, comprise the bridge deck of steel truss and concrete material, described bridge deck combine by the upper chord of WELDING STUDS and described steel truss; Between the node of described upper chord needling is set.
Further, be furnished with the transverse prestress muscle in the described bridge deck.
Further, described bridge deck are made up of the polylith precast plate, and the end of precast plate is provided with sawtooth pattern shearing tenon.
Further, described bridge deck bottom is provided with the WELDING STUDS notch, and described WELDING STUDS utilizes this WELDING STUDS notch that the upper chord of described bridge deck and described steel truss is combined.
Further, the thickness of described bridge deck is at least the minimum thickness that guarantees bridge deck structure intensity.
The invention also discloses a kind of method for bridge construction of steel purlin-concrete structure, may further comprise the steps:
Prefabricated bridge is reserved prestress pipe on prefabricated bridge deck, also reserve the WELDING STUDS notch on described bridge deck;
Do not set up there being the steel truss structure installation of beam peace connection in length and breadth, establish the connection needling at the upper chord node place of described steel truss;
In the corresponding wet seam of top board of described upper chord and the WELDING STUDS notch place welding WELDING STUDS on the bridge deck;
At the described masthead shop one deck mortar that winds up, the bridge deck lifting is put in place;
Tie up and roll reinforcing bar in the wet seam, water WELDING STUDS notch and wet joint concrete;
After the concrete of new cast reaches the intensity of regulation, to bridge deck stretch-draw transverse prestress and longitudinal prestressing.
Further, when prefabricated bridge, according to bridge deck width in conjunction with the construction hoisting ability with the bridge deck precast block, reserve sawtooth pattern shearing tenon in described every prefabricated bridge deck end.
Further, after having welded WELDING STUDS on the top board of described upper chord, to described upper chord top board and WELDING STUDS derusting by sandblasting.
Further, after bridge deck liftings put in place, pad was propped up with block rubber in the WELDING STUDS both sides on described upper chord.
Further, the described concrete that is cast in WELDING STUDS notch and wet seam is a slightly expanded concrete.
The bridge of steel purlin-concrete composite structure of the present invention combines steel and concrete basis characteristics separately, has brought into play the advantage of various materials; This structural integrity is good, and wind loading rating is strong, and flat connection need be set.Because the concrete slab self-bearing capacity is big, do not establish beam and flat connection in length and breadth, simple structure, the lines flow smoothly, saves steel.
In addition, the structure bridge panel is thick usually for concrete slab of the present invention, can improve the rigidity of structure on the one hand, also can improve difference variation on the other hand, also can reduce the influence of freeze thawing to bridge floor, the running environment when improving the vehicle bad weather at north cold area.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the bridge of steel purlin-concrete structure of the present invention;
Fig. 2 is the middle purlin upper chord of bridge of the present invention and the schematic diagram of WELDING STUDS integrated structure;
Fig. 3 is purlin, the limit upper chord of bridge of the present invention and the schematic diagram of WELDING STUDS integrated structure;
Fig. 4 is 1/2 a road bridge panel cross-sectional drawing of the present invention;
Fig. 5 is the A-A view among Fig. 4.
Among the figure: 1. bridge deck, 2. purlin, limit upper chord, 3. in the purlin upper chord, 4. needling, 5. WELDING STUDS, 6. precast plate, 7. WELDING STUDS notch, 8. wet seam, 9. mortar bed, 10, sawtooth pattern shearing tenon, 20. steel trusss, in 21. the purlin, purlin, 22. limit.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, the bridge of highway concrete bridge deck of the present invention and the continuous combined structure of steel main truss, comprise steel truss 20, purlin 21 and purlin, limit 22 during steel truss 20 mainly comprises, purlin upper chord 3 and purlin, limit upper chord 2 during middle purlin 21 and 22 tops, purlin, limit are respectively equipped with, connect the top of purlin upper chord 3 and purlin, limit upper chord 2 during bridge deck 1 are combined in by WELDING STUDS 5 between the node of middle purlin upper chord 3 and purlin, limit upper chord 2 by needling 4.As shown in Figures 2 and 3, WELDING STUDS 5 is welded on the top board of middle purlin upper chord 3 and purlin, limit upper chord 2.As shown in Figure 4 and Figure 5, bridge deck 1 are made up of polylith precast plate 6, and the end of every precast plate 6 is provided with sawtooth pattern shearing tenon 10, are beneficial to combine better with the wet seam 8 of later stage cast; Reserve prestress pipe on the precast plate 6; Also reserve WELDING STUDS notch 7 on the precast plate 6, precast plate 6 promptly utilizes this WELDING STUDS notch 7 to combine with the WELDING STUDS 5 on steel purlin upper chord and top thereof.Since under the wheel load effect, the horizontal single load bearing of bridge deck, and the transverse prestress muscle can be arranged in the bridge deck 1 in the place, to strengthen the lateral bearing ability of bridge deck 1.
Bridge deck of the present invention are not arranged beam bridge floor system in length and breadth for 1 time, the plane is not set yet connects system, only at the node place of winding up needling 4 are set and connect as the top between main truss.Because the support of no bridge deck, concrete slab bridge deck 1 span increases, so the thickness of bridge deck 1 can suitably strengthen.Bridge deck 1 are answered prefabricated depositing, to reduce the influence of shrinkage and creep.
A kind of job practices of the bridge of steel purlin-concrete composite structure of the present invention is as follows:
1) prefabricated bridge 1, during prefabricated bridge 1 according to bridge deck width in conjunction with the construction hoisting ability with bridge deck 1 precast block, and on the plate of bridge deck 1, reserve prestress pipe, on the plate of bridge deck 1, reserve WELDING STUDS notch 7, reserve sawtooth pattern shearing tenon 10 in the plate end of bridge deck 1 and be beneficial to better combine with the wet seam 8 of later stage cast.Precast plate 1 will be noted maintenance, rationally deposits.
2) will not have the steel truss structure installation of beam peace connection in length and breadth and set up, establish connection needling 4 at upper chord node place.Connect by needling 4 between the winding up of each sheet main truss, the no WELDING STUDS in needling 4 tops does not combine with bridge deck 1.
3) in the corresponding wet seam 8 of top board of upper chord and the WELDING STUDS notch 7 places welding WELDING STUDS 5 on the bridge deck 1.Concrete slab in conjunction with before will be to upper chord top board and WELDING STUDS 5 derustings by sandblasting, guarantee in conjunction with effect.
4), bridge deck 1 lifting is put in place at the masthead shop one deck mortar bed 9 that winds up.The WELDING STUDS both sides of upper chord are propped up pad with block rubber and are prevented that mortar is excessive, guarantee that mortar is closely knit.
5) tie up and roll reinforcing bars in the wet seam 8, water WELDING STUDS notch 7 and wet seam 8 concrete.The concrete of being poured into a mould adopts slightly expanded concrete to reduce the influence of later stage shrinkage and creep.
6) concrete of new cast is carried out necessary maintenance, reach the intensity of regulation after, to bridge deck stretch-draw transverse prestress and longitudinal prestressing.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that those skilled in the art are done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (10)
1, a kind of bridge of steel purlin-concrete structure comprises the bridge deck of steel truss and concrete material it is characterized in that described bridge deck combine by the upper chord of WELDING STUDS and described steel truss; Between the node of described upper chord needling is set.
2, the bridge of steel purlin-concrete structure according to claim 1 is characterized in that, is furnished with the transverse prestress muscle in the described bridge deck.
3, the bridge of steel purlin-concrete structure according to claim 1 and 2 is characterized in that, described bridge deck are made up of the polylith precast plate, and the end of precast plate is provided with sawtooth pattern shearing tenon.
4, the bridge of steel purlin-concrete structure according to claim 1 and 2 is characterized in that, described bridge deck bottom is provided with the WELDING STUDS notch, and described WELDING STUDS utilizes this WELDING STUDS notch that the upper chord of described bridge deck and described steel truss is combined.
5, the bridge of steel purlin-concrete structure according to claim 1 and 2 is characterized in that, the thickness of described bridge deck is at least the minimum thickness that guarantees bridge deck structure intensity.
6, a kind of method for bridge construction of steel purlin-concrete structure is characterized in that, may further comprise the steps:
Prefabricated bridge is reserved prestress pipe on prefabricated bridge deck, also reserve the WELDING STUDS notch on described bridge deck;
Do not set up there being the steel truss structure installation of beam peace connection in length and breadth, establish the connection needling at the upper chord node place of described steel truss;
In the corresponding wet seam of top board of described upper chord and the WELDING STUDS notch place welding WELDING STUDS on the bridge deck;
At the described masthead shop one deck mortar that winds up, the bridge deck lifting is put in place;
Tie up and roll reinforcing bar in the wet seam, water WELDING STUDS notch and wet joint concrete;
After the concrete of new cast reaches the intensity of regulation, to bridge deck stretch-draw transverse prestress and longitudinal prestressing.
7, the method for bridge construction of steel purlin-concrete structure according to claim 6, it is characterized in that, when prefabricated bridge, according to bridge deck width in conjunction with the construction hoisting ability with the bridge deck precast block, reserve sawtooth pattern shearing tenon in described every prefabricated bridge deck end.
8, the method for bridge construction of steel purlin-concrete structure according to claim 6 is characterized in that, after having welded WELDING STUDS on the top board of described upper chord, to described upper chord top board and WELDING STUDS derusting by sandblasting.
9, the method for bridge construction of steel purlin-concrete structure according to claim 6 is characterized in that, after the bridge deck lifting was put in place, pad was propped up with block rubber in the WELDING STUDS both sides on described upper chord.
10, the method for bridge construction of steel purlin-concrete structure according to claim 6 is characterized in that, the described concrete that is cast in WELDING STUDS notch and wet seam is a slightly expanded concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101362437A CN101550674A (en) | 2009-04-29 | 2009-04-29 | Bridge of steel truss-concrete and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009101362437A CN101550674A (en) | 2009-04-29 | 2009-04-29 | Bridge of steel truss-concrete and construction method thereof |
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| CN101550674A true CN101550674A (en) | 2009-10-07 |
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| CNA2009101362437A Pending CN101550674A (en) | 2009-04-29 | 2009-04-29 | Bridge of steel truss-concrete and construction method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203346A (en) * | 2010-01-29 | 2011-09-28 | 边炯均 | Construction method of steel composite girder bridge |
| CN103343507A (en) * | 2013-07-03 | 2013-10-09 | 中铁大桥勘测设计院集团有限公司 | Composite structure of three main trusses, longitudinal beams, transverse beams and concrete slabs |
| CN105672114A (en) * | 2016-01-22 | 2016-06-15 | 中铁大桥勘测设计院集团有限公司 | Opening section top chord and plate-girder combined unit piece provided with same |
| CN106223183A (en) * | 2016-09-13 | 2016-12-14 | 长安大学 | Assembled concrete-filled rectangular steel tube combination truss bridge and construction method |
| CN107002409A (en) * | 2014-10-08 | 2017-08-01 | 阿迪塔兹公司 | The concrete bridge deck of lateral force resisting system |
| CN107724232A (en) * | 2017-10-30 | 2018-02-23 | 安徽省交通控股集团有限公司 | A kind of stress relief construction for the connection of local concrete |
| CN112627000A (en) * | 2021-01-12 | 2021-04-09 | 中铁工程设计咨询集团有限公司 | Concrete bridge deck slab composite structure bridge and construction method thereof |
| CN112695634A (en) * | 2020-12-18 | 2021-04-23 | 中铁大桥局集团有限公司 | Steel truss girder glued-spliced bridge deck prefabrication length control method |
| CN112878196A (en) * | 2021-01-11 | 2021-06-01 | 中铁大桥局集团第一工程有限公司 | Highway bridge deck construction method for highway and railway dual-purpose bridge |
| CN114214942A (en) * | 2021-11-26 | 2022-03-22 | 长江勘测规划设计研究有限责任公司 | Construction method of superposed steel truss girder of bridge girder |
| CN114703734A (en) * | 2022-04-01 | 2022-07-05 | 山东高速集团有限公司创新研究院 | Steel-concrete combined beam bridge and construction method |
-
2009
- 2009-04-29 CN CNA2009101362437A patent/CN101550674A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203346B (en) * | 2010-01-29 | 2014-09-10 | 边炯均 | Construction method of steel composite girder bridge |
| CN102203346A (en) * | 2010-01-29 | 2011-09-28 | 边炯均 | Construction method of steel composite girder bridge |
| CN103343507A (en) * | 2013-07-03 | 2013-10-09 | 中铁大桥勘测设计院集团有限公司 | Composite structure of three main trusses, longitudinal beams, transverse beams and concrete slabs |
| CN103343507B (en) * | 2013-07-03 | 2015-04-29 | 中铁大桥勘测设计院集团有限公司 | Composite structure of three main trusses, longitudinal beams, transverse beams and concrete slabs |
| CN107002409A (en) * | 2014-10-08 | 2017-08-01 | 阿迪塔兹公司 | The concrete bridge deck of lateral force resisting system |
| CN105672114A (en) * | 2016-01-22 | 2016-06-15 | 中铁大桥勘测设计院集团有限公司 | Opening section top chord and plate-girder combined unit piece provided with same |
| CN106223183B (en) * | 2016-09-13 | 2018-07-27 | 长安大学 | Assembled concrete-filled rectangular steel tube combines truss bridge and construction method |
| CN106223183A (en) * | 2016-09-13 | 2016-12-14 | 长安大学 | Assembled concrete-filled rectangular steel tube combination truss bridge and construction method |
| CN107724232A (en) * | 2017-10-30 | 2018-02-23 | 安徽省交通控股集团有限公司 | A kind of stress relief construction for the connection of local concrete |
| CN112695634A (en) * | 2020-12-18 | 2021-04-23 | 中铁大桥局集团有限公司 | Steel truss girder glued-spliced bridge deck prefabrication length control method |
| CN112695634B (en) * | 2020-12-18 | 2022-04-08 | 中铁大桥局集团有限公司 | Steel truss girder glued-spliced bridge deck prefabrication length control method |
| CN112878196A (en) * | 2021-01-11 | 2021-06-01 | 中铁大桥局集团第一工程有限公司 | Highway bridge deck construction method for highway and railway dual-purpose bridge |
| CN112627000A (en) * | 2021-01-12 | 2021-04-09 | 中铁工程设计咨询集团有限公司 | Concrete bridge deck slab composite structure bridge and construction method thereof |
| CN114214942A (en) * | 2021-11-26 | 2022-03-22 | 长江勘测规划设计研究有限责任公司 | Construction method of superposed steel truss girder of bridge girder |
| CN114214942B (en) * | 2021-11-26 | 2023-09-29 | 长江勘测规划设计研究有限责任公司 | Construction method of bridge girder superposed steel truss girder |
| CN114703734A (en) * | 2022-04-01 | 2022-07-05 | 山东高速集团有限公司创新研究院 | Steel-concrete combined beam bridge and construction method |
| CN114703734B (en) * | 2022-04-01 | 2024-02-02 | 山东高速集团有限公司创新研究院 | Steel-concrete composite girder bridge and construction method |
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Application publication date: 20091007 |