CN204356636U - Assembly type steel bridge on highway and truss - Google Patents
Assembly type steel bridge on highway and truss Download PDFInfo
- Publication number
- CN204356636U CN204356636U CN201420475002.1U CN201420475002U CN204356636U CN 204356636 U CN204356636 U CN 204356636U CN 201420475002 U CN201420475002 U CN 201420475002U CN 204356636 U CN204356636 U CN 204356636U
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- truss
- steel bridge
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- highway
- angled triangle
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Abstract
The utility model discloses a kind of assembly type steel bridge on highway and truss thereof, the mode that truss adopts truss element to connect combination is formed, truss element is the truss element of isosceles triangle, truss element has chord member of truss, truss brace, vertical bar of truss, chord member of truss is the base of isosceles triangle, truss brace is the isosceles limit of isosceles triangle, and vertical bar of truss connects summit and the base mid point of isosceles triangle.Assembly type steel bridge on highway of the present utility model adopts above-mentioned truss, there is simple structure, stressed clear and definite, the advantage such as the number of components is few, interchangeability is strong, combination is various, erection speed is quick, can be used for the temporory structuries such as rescue and relief work, military and national defense, construction bracket, also can be used for the permanent structures such as conventional highway bridge construction and bridge strengthening.
Description
Technical field
The utility model belongs to Highway bridge technique field, relate to assembly type steel bridge on highway and engineering construction interim/permanent support.
Background technology
Assembly type steel bridge on highway be a kind of decomposable, can fast erecting, the Uniformed Bridge that is made up of prefabricated metal component.1938, Britain engineer Donald shellfish thunder have devised mountable steel bridge---Bailey bridge the earliest, and by a large amount of for Europe during the Second World War and battlefield, the Far East.The each state of postwar world all devises similar assembly type steel bridge on highway in conjunction with domestic practice situation on the basis of this Bailey bridge, and is changed into civilian.China since 321 type assembly type steel bridge on highway, still further developed the assembly type steel bridge on highway of the Multiple Types such as HD200 type, ZB200 type, ZB450 type and CD type from the development and production of phase early 1960s.
321 types, HD200 type, ZB200 type, ZB450 type all adopt pin joint to connect, therefore only can use as provisional bridge, such as HD200 type assembly type steel bridge on highway adopts rectangle truss element, two rhombic supportings are formed by brace, complex structure, and adopt pin joint to connect between rectangle truss element, be a kind of temporary bridge girder construction.321 shaped steel bridges are bicycle road, largest span 60 meters, HD200 and ZB200 type can do two-way traffic, and largest span only has 54.86 meters.CD shaped steel bridge can do two-way traffic, and bicycle road largest span can reach 90 meters, and have employed high-strength bolt connection between sections, can be used as permanent bridge in theory and uses.In all previous earthquake disaster of China, what be positioned at broad river course all has that to be greater than the bridge of 60 meters across footpath destroyed, therefore no matter 321 types, or the span ability of HD200, ZB200 shaped steel bridge all cannot satisfy the demands; Although ZB450 shaped steel bridge can reach 81 meters across footpath, erection installation need by plant equipment, and the erection time is longer, can not meet the needs of rescue and relief work, emergency first-aid repair.
Comprehensive Correlation span ability, erection speed and construction method, the more front four kinds of models of CD shaped steel bridge all have lifting, but the crossbeam of CD shaped steel bridge is arranged between two truss elements, i shaped cross section crossbeam bottom flange need be excised for realizing installation, and insert between two truss elements, and it is with bolts between crossbeam and truss, difficulty of construction is large, bolt hole not easily aligns, and crossbeam is placed between two truss, truss Path of Force Transfer is indefinite, be unfavorable for the force-bearing situation analysis of truss, and the easy local buckling of lower chord in CD shaped steel bridge erection process, this bridge type is theoretic permanent bridge, its bridge deck, the components such as crossbeam be still according to temporary structure design, the index request of permanent bridge can not be met.
Along with China is in the raising of global implications, currently just more and more participates in each developing country, the infrastructure of countries and regions underdeveloped is helped build, recover in building-up work after post-war reconstruction and calamity; And all parts of the world environment, weather conditions are complicated, require also higher to the weatherability of steel bridge, be therefore badly in need of that a kind of span ability of design is strong, convenient transportation of casing, set up fast and convenient, price economy, weather-proof ability is strong, the life-span is lasting Highway Assembling Type bridge.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of temporary work that can be used for quick emergency repair, the permanent work of normal highway construction, postwar and post-disaster reconstruction can be used for again, the assembly type steel bridge on highway that larger, the weather-proof ability of span ability is strong.For making up the deficiency of above-mentioned existing bridge type, and solve the technical problem in Practical Project, we devise a kind of novel assembly type steel bridge on highway (called after HBD60 type mountable steel bridge) and a kind of trussed construction, and are achieved through the following technical solutions.
The utility model provides a kind of assembly type steel bridge on highway and truss.Truss of the present utility model connects combination by truss element and forms, described truss element is the truss element of isosceles triangle, described truss element has chord member of truss, truss brace, vertical bar of truss, described chord member of truss is the base of isosceles triangle, described truss brace is the isosceles limit of isosceles triangle, and described vertical bar of truss connects summit and the base mid point of isosceles triangle.Preferably, the chord member of truss of described truss element, truss brace, vertical bar of truss welded H section steel are welded.
Assembly type steel bridge on highway of the present utility model, comprise crossbeam and described truss, described truss is arranged at the both sides of bridge floor; Described beam erection is between the truss element of bridge floor both sides, and described crossbeam is arranged at the vertical bar of truss of described truss element and the link position place of chord member of truss.Preferably, couple together with the middle part of X-shaped vertical supporting by each crossbeam of described steel bridge, described beam vertical is in the plane at described X-shaped vertical supporting place.Preferably, described steel bridge also comprises X-shaped wind-resistant pull rod, and for being coupled together by each crossbeam of described steel bridge, described crossbeam is parallel to the plane at X-shaped wind-resistant pull rod place.Preferably, the two ends of described steel bridge are provided with the truss element of right-angled triangle, and the chord member of truss of the truss element of described right-angled triangle is the base of right-angled triangle, and truss brace is the hypotenuse of right-angled triangle, and vertical bar of truss is the vertical edge of right-angled triangle.Preferably, the two ends of described steel bridge also have bearing, be supported in the vertical bar of truss of the truss element of described right-angled triangle, or be supported in the vertical bar of truss of truss element of described isosceles triangle, or be supported in one end of chord member of truss of truss element of described isosceles triangle.Preferably, the assembling mode of described truss is single single-layered truss, double single-layered truss, double double-deck truss or double three layers of truss.Preferably, by discrete portions of top cord, the summit of the isosceles triangle of described truss element is connected, thus form single-layered truss; Or, relatively connected by the summit of the isosceles triangle by described truss element, thus form double-deck truss; Or, by adding truss element described in one deck again on the top of described double-deck truss or bottom, thus form three layers of truss.Preferably, described bridge floor is V-type Orthotropic Steel Bridge Deck or U-shaped Orthotropic Steel Bridge Deck.
Compared with China current version assembly type steel bridge on highway, the utility model has the following advantages: (1) span ability is strong: bicycle road single hole largest span can break through hundred meters, two-way traffic largest span can reach 80 meters, has exceeded the largest span of current all model assembly type steel bridge on highway; (2) speed of setting up is fast: structure simple structure, the number of components are few, stability is strong, single member dead weight is light, with simple machinery with manually can complete erection, sets up the more similar ZB450 shaped steel bridge across footpath of speed rapider; (3) material usage is economized: because structural-load-carrying capacity is strong, when crossing over larger river, cheuch, when especially doing two-way traffic bridge, and steel using amount comparatively 321, HD200, ZB200, ZB450 shaped steel bridge all saves, thus reduce bridge cost; (4) combination is versatile and flexible: can adopt the truss combining forms such as single individual layer, double individual layer, double bilayer, then is aided with the 3rd chord member and strengthens chord member, can be assembled into the different bridge wide across footpath, bridge as required; (5) clearly stressed: to be different from CD shaped steel bridge, steel bridge of the present utility model is provided with montant in isosceles triangle truss element axis of symmetry position, and this structure solves cantilever and releases in work progress, and the problem of local buckling easily occurs truss lower chord; Crossbeam is arranged on vertical bar of truss position, mounting method is easier, and on bridge, load reaches crossbeam by bridge deck, then reaches lower chord by crossbeam, then reaches whole truss, and whole power transmission process is clear and definite, is easy to calculate; (6) temporary bridge and permanent bridge two kinds of systems are had: the major function location of temporary bridge is identical with current version steel bridge, for the versatility with current version steel bridge retaining member, bridge is wide and bridge deck construct and current version steel bridge is consistent, but adopt plain bolt to connect between truss, this connected mode is more safe and reliable compared with pin joint, good endurance, it is good that the high-strength bolt simultaneously adopted compared with CD type connects Discerptibility, do not need to connect rubbing surface to bolt at every turn and safeguard after disassembling; Permanent bridge is no longer considered to disassemble, therefore high-strength bolt is adopted to connect, be different from CD shaped steel bridge, steel bridge bridge of the present utility model is wide according to regulation and stipulation value, bridge deck adopts the Orthotropic Steel Bridge Deck of band U-shaped stiffening rib, on cover asphalt pavement or concrete pavement, runway both sides are provided with anticollision barrier, are the permanent road bridges of real meaning; (7) weather-proof ability is strong: can select to adopt low-alloy high-tensile structural steel to be coated with anticorrosive coating according to different natural environments and weather conditions, or adopt weatherproof structure steel, to improve structure durability; (8) purposes is more extensive: steel bridge of the present utility model not only can be used for the temporory structuries such as rescue and relief work, military and national defense, construction bracket, also can be used for the permanent structures such as conventional highway bridge construction and bridge strengthening, has purposes quite widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of the isosceles triangle truss element of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 2 is the structural representation of the right-angled triangle truss element of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 3 is the structural representation of the single individual layer of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 4 is the structural representation of the double individual layer of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 5 is the structural representation of the double bilayer of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 6 is the sectional view of the single single-layered truss of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 7 is the sectional view of the double single-layered truss of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 8 is the sectional view of the double double-deck truss of the assembly type steel bridge on highway of the utility model embodiment;
Fig. 9 is the sidewalk of the assembly type steel bridge on highway of the utility model embodiment and the structural representation of outrigger.
[critical element symbol description]
1, isosceles triangle;
2, vertical bar of truss
3, right-angled triangle;
4, single single-layered truss;
5, double single-layered truss;
6, double double-deck truss;
7, the 3rd chord member;
8, T-steel is strengthened;
9, crossbeam;
10, V-type Orthotropic Steel Bridge Deck;
11, U-shaped Orthotropic Steel Bridge Deck;
12, plain bolt or high-strength bolt;
13, X-shaped wind-resistant pull rod;
14, X-shaped vertical supporting;
15, curb;
16, bearing;
17, sidewalk;
18, sidewalk outrigger.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearly, further describe below in conjunction with the drawings and specific embodiments.
The assembly type steel bridge on highway that embodiment of the present utility model provides as shown in Fig. 1 ~ Fig. 9 and truss thereof.Truss connects combination by truss element and forms, truss element is the truss element of isosceles triangle 1, truss element has chord member of truss, truss brace, vertical bar of truss 2, chord member of truss is the base of isosceles triangle, truss brace is the isosceles limit of isosceles triangle, and vertical bar of truss 2 connects summit and the base mid point of isosceles triangle.The chord member of truss of truss element, truss brace, vertical bar of truss welded H section steel are welded.
Assembly type steel bridge on highway of the present utility model also comprises crossbeam 9, crossbeam 9 is set up between the truss element of bridge floor both sides, and crossbeam 9 is arranged at the vertical bar of truss 2 of truss element 1 and the link position place of chord member of truss, it is other that crossbeam 9 is placed in montant 2, the locator protrusions on lower chord is adopted to locate between crossbeam 9 and lower chord, only be connected with a bolt with montant 2 and locate, install very easy, and truss Path of Force Transfer is clear and definite.Couple together with the middle part of X-shaped vertical supporting 14 by each crossbeam 9 of steel bridge, crossbeam 9 is perpendicular to the plane at X-shaped vertical supporting 14 place.Steel bridge also comprises X-shaped wind-resistant pull rod 13, and for being coupled together by each crossbeam of described steel bridge, crossbeam 9 is parallel to the plane at X-shaped wind-resistant pull rod 13 place.The two ends of steel bridge are provided with the truss element of right-angled triangle 3, and the chord member of truss of the truss element of right-angled triangle is the base of right-angled triangle, and truss brace is the hypotenuse of right-angled triangle, and vertical bar of truss 2 is the vertical edge of right-angled triangle 3.The two ends of steel bridge also have bearing 16, are supported in the vertical bar of truss 2 of the truss element of right-angled triangle 3, or are supported in the vertical bar of truss 2 of truss element of isosceles triangle 1, or are supported in one end of chord member of truss of truss element of isosceles triangle 3.Steel bridge also has the Accessory Members such as sidewalk 17, sidewalk outrigger 18, and sidewalk 17 is welded on sidewalk outrigger 18, and sidewalk outrigger 18 adopts two channel cross-section, is bolted to the web two ends of crossbeam 9.The package assembly of truss is single single-layered truss 4, double single-layered truss 5 or double double-deck truss 6; Double single-layered truss 5 or double double-deck truss 6 double between can be provided with the 3rd chord member 7, the outside of chord member of truss all can arrange the T-steel 8 in order to strengthen.The sectional form of crossbeam 9 is I shape section, and crossbeam 9 is provided with Orthotropic Steel Bridge Deck, and wherein V-type Orthotropic Steel Bridge Deck 10 is for provisional bridge, and U-shaped Orthotropic Steel Bridge Deck 11 is for permanent bridge; Adopt bolt 12 to connect between each component, wherein provisional bridge adopts plain bolt to connect, and permanent bridge adopts high-strength bolt to connect.
The utility model is a kind of combined bridge based on unit member, and truss is made up of truss element.Isosceles triangle 1, montant 2 and right-angled triangle 3 component are welded by welded H section steel.Relative chord member of truss is identical with the base of right-angled triangle 3 with isosceles triangle 1, and truss the 3rd chord member 7 is also consistent with the base of isosceles triangle 1 and right-angled triangle 3.Continuously the base of truss element bolt 12 is connected, then connect each vertex of a triangle by chord member, and respectively establish row's single-layered truss in the both sides of bridge floor, just constitute single individual layer bridge; If respectively establish two row's single-layered truss in the both sides of bridge floor, just constitute double individual layer bridge; Between double truss, a chord member is installed, i.e. the 3rd chord member 7, just constitute the double individual layer bridge of band the 3rd chord member 7, set up T-steel 8 in the outside of chord member of truss in addition and strengthen, just constitute the double individual layer reinforcement bridge that single individual layer strengthens bridge and band the 3rd chord member 7.With the double single layer bridge of the 3rd chord member 7, the moment of inertia of truss can be made to improve 50%, substantially increase the flexural strength of truss.When bridge span needs to increase further, can by the summit of two isosceles triangle 1 truss elements, relatively couple together, just constituting double double bridge, being used to distance and supporting capacity to improve main truss, the 3rd chord member 7 can be set up between double truss equally, just the double dual deck bridge of band the 3rd chord member 7 is constituted, in the outermost of double-deck chord member of truss, set up T-steel 8 and strengthen, just constitute the double dual deck bridge of reinforcement of band the 3rd chord member 7.Dual deck bridge, except the isosceles triangle 1 that basic building block is band vertical bar of truss 2, needs the two ends of bridge to arrange right-angled triangle 3 truss element, makes bridge end form vertical bar of truss 2.Needing more, Long span is in particular cases, also three layers of truss bridge can be assembled, exactly below pair of lamina bridge or above add one deck triangular truss component, three layers of truss bridge can adopt the form of lower support type or half-through, when adopting lower support type, on the top of bridge, horizontal wind brace should be installed.
The bridge deck of assembly type steel bridge on highway of the present utility model is made up of crossbeam 9 and Orthotropic Steel Bridge Deck, and wherein Orthotropic Steel Bridge Deck can choose V-type Orthotropic Steel Bridge Deck 10 or U-shaped Orthotropic Steel Bridge Deck 11 according to actual needs flexibly.V-type Orthotropic Steel Bridge Deck 10 exquisiteness is bolted on crossbeam 9, and U-shaped Orthotropic Steel Bridge Deck 11 high-strength bolt is fixed on crossbeam 9, and crossbeam 9 sectional form is I shape section, and its position, in truss element montant position, makes it form half framework.
Assembly type steel bridge on highway of the present utility model can adopt low-alloy high-tensile structural steel manufacture and be equipped with anticorrosive coating, also can adopt weather-proof steel manufacture, to improve the durability of bridge according to bridge location area natural environment and climatic characteristic.
Assembly type steel bridge on highway of the present utility model solves 60 meters to the 90 meters problems across the Long span Fast Installation highway steel bridge in footpath, be mainly used in military operation in particular cases and accident, and flood fighting, antidetonation, speedily carry out rescue work, the emergency first-aid repair to highway bridge such as the disaster relief, can be used as permanent bridge, support, trestle, Bridge Erector nose girder etc. on civilian and be used widely.
In addition, triangular truss structure of the present utility model, except may be used for the truss of assembling assembly type steel bridge on highway, can also be assembled into the support for Other Engineering construction.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (12)
1. a truss, it is characterized in that, described truss connects combination by truss element and forms, described truss element is the truss element of isosceles triangle, described truss element has chord member of truss, truss brace, vertical bar of truss, described chord member of truss is the base of isosceles triangle, and described truss brace is the isosceles limit of isosceles triangle, and described vertical bar of truss connects summit and the base mid point of isosceles triangle.
2. truss as claimed in claim 1, it is characterized in that, the chord member of truss of described truss element, truss brace, vertical bar of truss welded H section steel are welded.
3. the truss as described in any one of claim 1-2, is characterized in that, described truss assembling becomes support for engineering construction.
4. an assembly type steel bridge on highway, is characterized in that, comprise crossbeam and the truss described in any one of claim 1-3, described truss is arranged at the both sides of bridge floor; Described beam erection is between the truss element of bridge floor both sides, and described crossbeam is arranged at the vertical bar of truss of described truss element and the link position place of chord member of truss.
5. assembly type steel bridge on highway as claimed in claim 4, it is characterized in that, the assembling mode of described truss is single single-layered truss, double single-layered truss, double double-deck truss or double three layers of truss.
6. the assembly type steel bridge on highway as described in claim 4 or 5, is characterized in that, couples together with the middle part of X-shaped vertical supporting by each crossbeam of described steel bridge, and described beam vertical is in the plane at described X-shaped vertical supporting place.
7. the assembly type steel bridge on highway as described in claim 4 or 5, is characterized in that, described steel bridge also comprises X-shaped wind-resistant pull rod, and for being coupled together by each crossbeam of described steel bridge, described crossbeam is parallel to the plane at X-shaped wind-resistant pull rod place.
8. the assembly type steel bridge on highway as described in claim 4 or 5, it is characterized in that, the two ends of described steel bridge are provided with the truss element of right-angled triangle, the chord member of truss of the truss element of described right-angled triangle is the base of right-angled triangle, truss brace is the hypotenuse of right-angled triangle, and vertical bar of truss is the vertical edge of right-angled triangle.
9. assembly type steel bridge on highway as claimed in claim 6, it is characterized in that, the two ends of described steel bridge are provided with the truss element of right-angled triangle, the chord member of truss of the truss element of described right-angled triangle is the base of right-angled triangle, truss brace is the hypotenuse of right-angled triangle, and vertical bar of truss is the vertical edge of right-angled triangle.
10. assembly type steel bridge on highway as claimed in claim 7, it is characterized in that, the two ends of described steel bridge are provided with the truss element of right-angled triangle, the chord member of truss of the truss element of described right-angled triangle is the base of right-angled triangle, truss brace is the hypotenuse of right-angled triangle, and vertical bar of truss is the vertical edge of right-angled triangle.
11. assembly type steel bridge on highway as claimed in claim 8, it is characterized in that, the two ends of described steel bridge also have bearing, be supported in the vertical bar of truss of the truss element of described right-angled triangle, or be supported in the vertical bar of truss of truss element of described isosceles triangle, or be supported in one end of chord member of truss of truss element of described isosceles triangle.
12. assembly type steel bridge on highway as described in claim 4 or 5, it is characterized in that also having sidewalk, described sidewalk is welded on the outrigger of sidewalk, and sidewalk outrigger adopts two channel cross-section, and sidewalk outrigger is bolted to the web two ends of described crossbeam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475002.1U CN204356636U (en) | 2014-08-22 | 2014-08-22 | Assembly type steel bridge on highway and truss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475002.1U CN204356636U (en) | 2014-08-22 | 2014-08-22 | Assembly type steel bridge on highway and truss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204356636U true CN204356636U (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420475002.1U Expired - Fee Related CN204356636U (en) | 2014-08-22 | 2014-08-22 | Assembly type steel bridge on highway and truss |
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| Country | Link |
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| CN (1) | CN204356636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653076A (en) * | 2018-12-24 | 2019-04-19 | 四川港航建设工程有限公司 | Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method |
| CN114182652A (en) * | 2022-01-11 | 2022-03-15 | 重庆标王机械设备有限公司 | Large-truss-height-adjustable suspension-assembly combined frame steel arch frame and large-span arch ring integral pouring process |
-
2014
- 2014-08-22 CN CN201420475002.1U patent/CN204356636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653076A (en) * | 2018-12-24 | 2019-04-19 | 四川港航建设工程有限公司 | Combined type flood control is passed the flood period lock head shellfish Lei Gangqiao and construction method |
| CN114182652A (en) * | 2022-01-11 | 2022-03-15 | 重庆标王机械设备有限公司 | Large-truss-height-adjustable suspension-assembly combined frame steel arch frame and large-span arch ring integral pouring process |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20160822 |
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| CF01 | Termination of patent right due to non-payment of annual fee |