CN204282192U - A kind of double deck steel truss girder - Google Patents

A kind of double deck steel truss girder Download PDF

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Publication number
CN204282192U
CN204282192U CN201420461267.6U CN201420461267U CN204282192U CN 204282192 U CN204282192 U CN 204282192U CN 201420461267 U CN201420461267 U CN 201420461267U CN 204282192 U CN204282192 U CN 204282192U
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CN
China
Prior art keywords
steel
bridge deck
chord
steel bridge
transverse beam
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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.)
Expired - Fee Related
Application number
CN201420461267.6U
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Chinese (zh)
Inventor
马骉
蒋彦征
常付平
邓青儿
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Shanghai Municipal Engineering Design Insitute Group Co Ltd
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Priority to CN201420461267.6U priority Critical patent/CN204282192U/en
Application granted granted Critical
Publication of CN204282192U publication Critical patent/CN204282192U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model is a kind of double deck steel truss girder, it mainly comprises steel main couple and orthotropic steel bridge deck system, it is characterized in that: steel main couple comprises web member, upper chord and lower chord, orthotropic steel bridge deck system comprises top rail, lower transverse beam and is arranged on the steel bridge deck at top rail and lower transverse beam top, and steel main couple and orthotropic steel bridge deck system adopt all-weld joint mode to be connected.This form of structure can increase the area of main truss chord member and the global stiffness of steel main couple, reduce the stressed of each several part rod member, and the lateral deflection improving chord member is stablized, thus reduces the steel using amount of main couple; Adopt all-weld joint that structure can be made succinct, and scab required when saving with bolts and high-strength bolt, simplify working procedure.The utility model all has higher promotional value at aspects such as economy, convenient, the Bridge Landscapes of constructing.

Description

A kind of double deck steel truss girder
Technical field
The utility model relates to the technical field of bridge engineering, specifically a kind of double deck steel truss girder.
Background technology
At present both at home and abroad in steel truss girder bridge, the relation between steel bridge deck and main couple has and combines and non-binding two schemes, and adopt steel bridge deck and steel truss in conjunction with time, mostly adopt again the connected mode of bolt-weldering combination.
Summary of the invention
The purpose of this utility model is to provide a kind of novel steel truss girder, makes structure stress reasonable, simple structure, easy construction.
To achieve these goals, the technical solution of the utility model is as follows: a kind of double deck steel truss girder, it mainly comprises steel main couple and orthotropic steel bridge deck system, it is characterized in that: steel main couple comprises web member, upper chord and lower chord, orthotropic steel bridge deck system comprises top rail, lower transverse beam and is arranged on the upper strata steel bridge deck at top rail top and lower floor's steel bridge deck at lower transverse beam top, and steel main couple and orthotropic steel bridge deck system adopt all-weld joint mode to be connected.Be welded to connect between upper strata steel bridge deck and upper chord, lower floor's steel bridge deck and lower chord are welded to connect, and web member and upper chord and lower chord junction are respectively arranged with integral node plate, and top rail, lower transverse beam are welded to connect respectively and between described integral node plate.Upper strata steel bridge deck and upper chord top flange adopt butt weld to be connected; Lower floor's steel bridge deck and lower chord top flange adopt butt weld to be connected.The top rail of orthotropic steel bridge deck system is identical with main couple upper chord height, the bottom wing listrium of top rail and web are welded on the integral node plate between upper chord, web member by T junction, and top rail bottom wing listrium and integral node plate junction are with arc transition.The lower transverse beam of orthotropic steel bridge deck system lower chord place and lower chord contour, lower transverse beam top flange plate and web are connected on the integral node plate between lower chord, web member by T junction, lower chord arranges the bottom wing listrium widened, and the bottom wing listrium that lower transverse beam bottom wing listrium is then widened with lower chord docks and is connected.
This form of structure is combined jointly stressed because adopting steel bridge deck with steel truss completely, reduces main couple steel using amount; And adopt all-weld joint, constructional appearance can be made more succinctly attractive in appearance, and save a large amount of scab and high-strength bolt, avoid adopting bolt, weldering two cover construction technology simultaneously.This form of structure can increase the area of main truss chord member and the global stiffness of steel main couple, reduce the stressed of each several part rod member, and the lateral deflection improving chord member is stablized, thus reduces the steel using amount of main couple; Adopt all-weld joint that structure can be made succinct, and scab required when saving with bolts and high-strength bolt, simplify working procedure.The utility model all has higher promotional value at aspects such as economy, convenient, the Bridge Landscapes of constructing.
Accompanying drawing explanation
Fig. 1 is bridge layout figure of the present utility model.
Fig. 2 be without in crossbeam place across full welded plate purlin Combined steel truss beam profile.
Fig. 3 is across full welded plate purlin Combined steel truss beam profile in crossbeam place.
Fig. 4 is that upper chord and Steel Bridge Deck fasten crossbeam connecting structure elevation.
Fig. 5 is that upper chord and Steel Bridge Deck fasten crossbeam connecting structure ground plan.
Fig. 6 is lower chord and Steel Bridge Deck system lower transverse beam connecting structure elevation.
Fig. 7 is lower chord and Steel Bridge Deck system lower transverse beam connecting structure ground plan.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 ~ 5 and embodiment, the utility model will be further described.
Certain bridge is double deck road oblique roller bridge, is wherein steel truss girder across girder, and adopts full welded plate-purlin integrated structure form.
As figure, steel main couple comprises web member 8, diagonal web member 7, upper chord 5, lower chord 6, limit chord member 9 and hound 11, orthotropic steel bridge deck system comprises top rail 1, lower transverse beam 2 and is arranged on the upper strata steel bridge deck 3 at top rail 1 top and lower floor's steel bridge deck 4 at lower transverse beam top, and steel main couple and orthotropic steel bridge deck system adopt all-weld joint mode to be connected.Be welded to connect between upper strata steel bridge deck 3 and upper chord 5, lower floor's steel bridge deck 4 and lower chord 6 are welded to connect, web member 8 is respectively arranged with integral node plate 10 with upper chord 5 and lower chord 6 junction, and top rail 1, lower transverse beam 2 are welded to connect respectively and between described integral node plate 10.Upper strata steel bridge deck 3 and upper chord top flange adopt butt weld to be connected; Lower floor's steel bridge deck 4 and lower chord top flange adopt butt weld to be connected.The top rail 1 of orthotropic steel bridge deck system is highly identical with main couple upper chord 5, the bottom wing listrium of top rail 1 and web are welded on the integral node plate 10 between upper chord, web member by T junction, and top rail bottom wing listrium and integral node plate 10 junction are with arc transition.The lower transverse beam 2 of orthotropic steel bridge deck system lower chord place and lower chord contour, lower transverse beam 2 top flange plate and web are connected on the integral node plate 10 between lower chord, web member by T junction, lower chord arranges the bottom wing listrium widened, and the bottom wing listrium that lower transverse beam bottom wing listrium is then widened with lower chord docks and is connected.
Feature of the present utility model is: 1. steel bridge deck adopts butt weld to be connected with main couple chord member top flange; 2. the top rail of orthotropic steel bridge deck system is identical with main couple upper chord height, the bottom wing listrium of top rail and web are welded on integral node plate by T junction, to keep the continuous of main truss upper chord, simultaneously for avoiding stress to concentrate, top rail bottom wing listrium and integral node plate junction are with arc transition, and polishing circle is even suitable.3. orthotropic steel bridge deck system lower transverse beam lower chord place and lower chord contour, lower transverse beam top flange plate and web are connected on integral node plate by T junction, to keep the continuous of main truss lower chord; The bottom wing listrium that lower transverse beam bottom wing listrium is then widened with box-shaped lower chord docks and is connected.
Analyze as calculated, steel bridge deck and main truss are combined can effectively reduce main truss rod member internal force completely, increase transverse direction and the vertical rigidity of structure, reduce steel using amount thus reduce costs.When steel bridge deck and main truss adopt all-weld joint, structure can be made succinct, obtain profile attractive in appearance, and save a large amount of high-strength bolt and junction plate, avoid simultaneously employing bolt-weldering in conjunction with time, two cover techniques of the required employing of construction.

Claims (5)

1. a double deck steel truss girder, it mainly comprises steel main couple and orthotropic steel bridge deck system, it is characterized in that: steel main couple comprises web member, upper chord and lower chord, orthotropic steel bridge deck system comprises top rail, lower transverse beam and is arranged on the upper strata steel bridge deck at top rail top and lower floor's steel bridge deck at lower transverse beam top, and steel main couple and orthotropic steel bridge deck system adopt all-weld joint mode to be connected.
2. a kind of double deck steel truss girder according to claim 1, it is characterized in that being welded to connect between upper strata steel bridge deck and upper chord, lower floor's steel bridge deck and lower chord are welded to connect, web member and upper chord and lower chord junction are respectively arranged with integral node plate, and top rail, lower transverse beam are welded to connect respectively and between described integral node plate.
3. a kind of double deck steel truss girder according to claim 2, is characterized in that upper strata steel bridge deck and upper chord top flange adopt butt weld to be connected; Lower floor's steel bridge deck and lower chord top flange adopt butt weld to be connected.
4. a kind of double deck steel truss girder according to claim 2, it is characterized in that the top rail of orthotropic steel bridge deck system is identical with main couple upper chord height, the bottom wing listrium of top rail and web are welded on the integral node plate between upper chord, web member by T junction, and top rail bottom wing listrium and integral node plate junction are with arc transition.
5. a kind of double deck steel truss girder according to claim 2, it is characterized in that the lower transverse beam of orthotropic steel bridge deck system lower chord place and lower chord contour, lower transverse beam top flange plate and web are connected on the integral node plate between lower chord, web member by T junction, lower chord arranges the bottom wing listrium widened, and the bottom wing listrium that lower transverse beam bottom wing listrium is then widened with lower chord docks and is connected.
CN201420461267.6U 2014-08-15 2014-08-15 A kind of double deck steel truss girder Expired - Fee Related CN204282192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420461267.6U CN204282192U (en) 2014-08-15 2014-08-15 A kind of double deck steel truss girder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420461267.6U CN204282192U (en) 2014-08-15 2014-08-15 A kind of double deck steel truss girder

Publications (1)

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CN204282192U true CN204282192U (en) 2015-04-22

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106049250A (en) * 2016-07-29 2016-10-26 中铁大桥勘测设计院集团有限公司 Pressure weight structure for steel truss girder cable-stayed bridge and construction method thereof
CN106638278A (en) * 2017-02-26 2017-05-10 西南交通大学 Pneumatic structure for improving flutter performance of dual-layer road steel truss suspension bridge
CN107905084A (en) * 2017-12-12 2018-04-13 长沙市公路桥梁建设有限责任公司 RPC steel truss combined bridge deck and continuous bridge
CN109024267A (en) * 2018-07-04 2018-12-18 中铁大桥勘测设计院集团有限公司 A kind of Steel Truss Beam structure of curve bridge floor
CN109295865A (en) * 2018-09-28 2019-02-01 上海市政工程设计研究总院(集团)有限公司 A kind of steel truss girder bridge widening and improving method
CN114214957A (en) * 2021-12-30 2022-03-22 武船重型工程股份有限公司 Construction method of double-layer truss bridge
CN115162135A (en) * 2022-07-18 2022-10-11 甘肃省交通规划勘察设计院股份有限公司 Novel steel truss-concrete double-layer combined continuous beam bridge and construction method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106049250A (en) * 2016-07-29 2016-10-26 中铁大桥勘测设计院集团有限公司 Pressure weight structure for steel truss girder cable-stayed bridge and construction method thereof
CN106049250B (en) * 2016-07-29 2018-05-11 中铁大桥勘测设计院集团有限公司 A kind of ballast structure and its construction method for steel truss girder cable-stayed bridge
CN106638278A (en) * 2017-02-26 2017-05-10 西南交通大学 Pneumatic structure for improving flutter performance of dual-layer road steel truss suspension bridge
CN106638278B (en) * 2017-02-26 2018-04-13 西南交通大学 A kind of pneumatic construction for improving double-deck highway steel trusses suspension bridge Flutter Performance
CN107905084A (en) * 2017-12-12 2018-04-13 长沙市公路桥梁建设有限责任公司 RPC steel truss combined bridge deck and continuous bridge
CN109024267A (en) * 2018-07-04 2018-12-18 中铁大桥勘测设计院集团有限公司 A kind of Steel Truss Beam structure of curve bridge floor
CN109024267B (en) * 2018-07-04 2020-07-21 中铁大桥勘测设计院集团有限公司 Steel truss girder structure of curved bridge floor
CN109295865A (en) * 2018-09-28 2019-02-01 上海市政工程设计研究总院(集团)有限公司 A kind of steel truss girder bridge widening and improving method
CN114214957A (en) * 2021-12-30 2022-03-22 武船重型工程股份有限公司 Construction method of double-layer truss bridge
CN115162135A (en) * 2022-07-18 2022-10-11 甘肃省交通规划勘察设计院股份有限公司 Novel steel truss-concrete double-layer combined continuous beam bridge and construction method

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Granted publication date: 20150422

CF01 Termination of patent right due to non-payment of annual fee