CN203684059U - Large-span deck Bailey beam steel trestle structure - Google Patents

Large-span deck Bailey beam steel trestle structure Download PDF

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Publication number
CN203684059U
CN203684059U CN201320608732.XU CN201320608732U CN203684059U CN 203684059 U CN203684059 U CN 203684059U CN 201320608732 U CN201320608732 U CN 201320608732U CN 203684059 U CN203684059 U CN 203684059U
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China
Prior art keywords
trestle
steel
span
bailey
main
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CN201320608732.XU
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Chinese (zh)
Inventor
刘文兵
黄景新
匡建国
马海贤
朱善美
沙伟
戴国安
莫立汝
杨曦
吴福莉
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Cr4bg No4 Engineering Co Ltd
Fourth Engineering Co Ltd of CTCE Group
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Cr4bg No4 Engineering Co Ltd
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Abstract

The utility model discloses a large-span deck Bailey beam steel trestle structure. The deck Bailey beam steel trestle structure is characterized in that a steel trestle is formed by the design of a 15m auxiliary span plus a 30m main span plus a 15m auxiliary span, wherein the main span is 30m; the main span is matched with a spiral welded pipe to be used as a main span pier of the trestle; double station steel is arranged at the top of the spiral welded pipe and is used as a trestle distributive girder; an open groove for limiting the trestle distributive girder from becoming a main member is formed in the spiral welded pipe; the bailey beam is arranged on the spiral welded pipe; a trestle deck distributive girder adopts a steel plate trestle deck structure from the transverse direction to the longitudinal direction. According to the large-span deck Bailey beam steel trestle structure disclosed by the utility model is reasonable in design; by adopting a reasonable structural arrangement form, the large-span bearing capacity of the bailey beam steel trestle can be obtained, the temporary pass requirement of lines spanning rivers, existing roads and railway business lines and the like having traffic limitation can be met and the pass of vehicles with the maximum load of 100t can be allowed; according to the structural design of the steel trestle, the span of the main span of the steel trestle is increased to the maximum extent and the safety and the reliability of vehicle pass can be ensured.

Description

A kind of large span deck type Bailey beam steel trestle structure
Technical field
The utility model relates to the structure field of steel trestle, relates in particular to a kind of large span deck type Bailey beam steel trestle structure.
Background technology
For the road that needs navigation or driving on need across the larger inland river of span, highway and railway etc., as: for pioneer road need be built in river a temporary construction suspension bridge along connecing, need to meet the wide requirement of navigation navigation channel 25m in river course, current domestic conventional 9m, the 12m adopting and 15m are across all not meeting the demands simultaneously.
Utility model content
The purpose of this utility model is the deficiency in order to make up prior art, and the large span deck type Bailey beam steel trestle structure that a kind of simple structure of constructing is stable is provided.
The utility model is achieved through the following technical solutions:
A kind of large span deck type Bailey beam steel trestle structure, it is characterized in that: steel trestle by 15m auxiliary across+30m main span+15m is auxiliary across designing, its main span is 30m, coordinate spiral welded pipe as trestle main span buttress, the top of described spiral welded pipe is provided with Two bors d's oeuveres station steel, described Two bors d's oeuveres station steel is as trestle distribution beam, it is main open slot that described spiral welded pipe is provided with restriction trestle distribution beam, Bailey beam is positioned in trestle distribution beam, and trestle bridge floor distribution beam adopts first horizontal rear vertical bridge floor of steel plate structure.
Described Bailey beam is long 3 meters of standardized structural element, high 1.5 meters, strengthens chord member for long 1.5 meters of standardized structural elements.
Described trestle main span buttress is the spiral welded pipe of diameter 530mm wall thickness 8mm, and single horizontal four, arrangement pitches is 2 meters, and between helix tube, 2.5 meters of vertical spacing are established and laterally connected together system, laterally connect system and adopt channel-section steel to make.
The shellfish thunder sheet that described Bailey beam is connected by spacing 45cm angle steel standard support frame is made, and under every Bailey beam, a slice that installs additional with bolts is strengthened chord member, adopts 49.5mm truss connecting pin to connect between Bailey beam.
The thickness of described bridge floor of steel plate is 10mm.
The utility model has the advantages that:
The utility model reasonable in design, adopt rational structural arrangement form to solve the supporting capacity of Bailey beam steel trestle large span, can solve the interim current requirement that has traffic restriction across river, river, existing highway, running railway line etc., can meet maximum load is the current of 100t vehicle, by the structure design of steel trestle having been strengthened to greatest extent to the span of steel trestle main span, and guarantee the safe and reliable of vehicle pass-through.
Accompanying drawing explanation
Fig. 1 is the utility model front view.
Fig. 2 is the utility model lateral view.
The specific embodiment
Referring to accompanying drawing, a kind of large span deck type Bailey beam steel trestle structure, steel trestle by 15m auxiliary across+30m main span+15m is auxiliary across designing, its main span is 30m, coordinates spiral welded pipe 1 as trestle main span buttress, and the top of spiral welded pipe 1 is provided with Two bors d's oeuveres station steel 2, Two bors d's oeuveres station steel 2 is as trestle distribution beam, it is main open slot that spiral welded pipe 1 is provided with restriction trestle distribution beam, and Bailey beam 3 is positioned in trestle distribution beam, vertical bridge floor of steel plate 4 structures after the first horizontal stroke of trestle bridge floor distribution beam employing.Described Bailey beam 3 is for long 3 meters of standardized structural element, high 1.5 meters, strengthens chord member 5 for long 1.5 meters of standardized structural elements.
Described steel trestle by 15m auxiliary across+30m main span+15m is auxiliary across designing, steel trestle is laterally by 10 longitudinal 20,5 groups of Bailey beams that the shellfish thunder sheet laterally being connected by spacing 45cm angle steel (L63 × 4) standard support frame is made are as the girder of trestle, under every Bailey beam, adopt M36 × 180mm bolt to connect and install a slice reinforcement chord member additional, between Bailey beam, adopt 49.5mm truss connecting pin to connect.Bailey beam limit earnestly by vertical spacing 2.5m [16 channel-section steels are welded into four spacing 2m Φ 530 helix tubes that horizontal bridging connects and forms, and buttress top cross beam is that 2I45a i iron forms; Middle buttress by double vertical spacing 2.5m [16 channel-section steels are welded into four spacing 2m Φ 530 helix tubes that horizontal bridging connects and forms, longitudinally longitudinal distribution beam of same axial employing 2I45a i iron composition, the crossbeam laterally forming for 3I45a i iron.Bridge deck is mated formation and is formed by horizontal spacing 60cmI28a i iron, longitudinal pitch 30cmI10 i iron, δ 10mm steel plate.
When implementation structure form, adopt pile driver first Φ 530 helix tubes to be squeezed into after below ground reaches bearing capacity and weld channel-section steel bridging between Φ 530 helix tubes, install in length and breadth to I45a distribution beam, after Bailey beam is good by on-site consolidation with crane lifting to transverse distribution beam, the bridge deck of mating formation.

Claims (5)

1. a large span deck type Bailey beam steel trestle structure, it is characterized in that: steel trestle by 15m auxiliary across+30m main span+15m is auxiliary across designing, its main span is 30m, coordinate spiral welded pipe as trestle main span buttress, the top of described spiral welded pipe is provided with Two bors d's oeuveres station steel, described Two bors d's oeuveres station steel is as trestle distribution beam, it is main open slot that described spiral welded pipe is provided with restriction trestle distribution beam, Bailey beam is positioned in trestle distribution beam, and trestle bridge floor distribution beam adopts first horizontal rear vertical bridge floor of steel plate structure.
2. large span deck type Bailey beam steel trestle structure according to claim 1, is characterized in that: described Bailey beam is long 3 meters of standardized structural element, high 1.5 meters, strengthens chord member for long 1.5 meters of standardized structural elements.
3. large span deck type Bailey beam steel trestle structure according to claim 1, it is characterized in that: described trestle main span buttress is the spiral welded pipe of diameter 530mm wall thickness 8mm, single horizontal four, arrangement pitches is 2 meters, between helix tube, 2.5 meters of vertical spacing are established and are laterally connected together system, laterally connect system and adopt channel-section steel to make.
4. large span deck type Bailey beam steel trestle structure according to claim 1, it is characterized in that: the shellfish thunder sheet that described Bailey beam is connected by spacing 45cm angle steel standard support frame is made, under every Bailey beam, a slice that installs additional with bolts is strengthened chord member, adopts 49.5mm truss connecting pin to connect between Bailey beam.
5. large span deck type Bailey beam steel trestle structure according to claim 1, is characterized in that: the thickness of described bridge floor of steel plate is 10mm.
CN201320608732.XU 2013-09-29 2013-09-29 Large-span deck Bailey beam steel trestle structure Active CN203684059U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320608732.XU CN203684059U (en) 2013-09-29 2013-09-29 Large-span deck Bailey beam steel trestle structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320608732.XU CN203684059U (en) 2013-09-29 2013-09-29 Large-span deck Bailey beam steel trestle structure

Publications (1)

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CN203684059U true CN203684059U (en) 2014-07-02

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104060547A (en) * 2014-07-10 2014-09-24 中交二航局第四工程有限公司 Temporary steel trestle constructing method and trestle
CN104404861A (en) * 2014-11-05 2015-03-11 中交第二航务工程局有限公司 Steel trestle provided with steel anchor pile and construction method of steel trestle
CN104674643A (en) * 2015-01-29 2015-06-03 四川路航建设工程有限责任公司 Prestressed steel truss bridge
CN105350426A (en) * 2015-09-29 2016-02-24 中国一冶集团有限公司 Assembling method of pedestrian footpath in mountain construction
CN106978777A (en) * 2017-05-22 2017-07-25 中铁第五勘察设计院集团有限公司 A kind of make-shift bridge device
CN108691274A (en) * 2017-04-05 2018-10-23 新疆顺安众达交通技术服务有限公司 Load-bearing is adjustable install convenient steel constructed beam technical method
CN109184699A (en) * 2018-08-20 2019-01-11 中铁六局集团有限公司 Existing river construction is worn under open trench tunnel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104060547A (en) * 2014-07-10 2014-09-24 中交二航局第四工程有限公司 Temporary steel trestle constructing method and trestle
CN104404861A (en) * 2014-11-05 2015-03-11 中交第二航务工程局有限公司 Steel trestle provided with steel anchor pile and construction method of steel trestle
CN104674643A (en) * 2015-01-29 2015-06-03 四川路航建设工程有限责任公司 Prestressed steel truss bridge
CN105350426A (en) * 2015-09-29 2016-02-24 中国一冶集团有限公司 Assembling method of pedestrian footpath in mountain construction
CN108691274A (en) * 2017-04-05 2018-10-23 新疆顺安众达交通技术服务有限公司 Load-bearing is adjustable install convenient steel constructed beam technical method
CN106978777A (en) * 2017-05-22 2017-07-25 中铁第五勘察设计院集团有限公司 A kind of make-shift bridge device
CN109184699A (en) * 2018-08-20 2019-01-11 中铁六局集团有限公司 Existing river construction is worn under open trench tunnel
CN109184699B (en) * 2018-08-20 2020-07-10 中铁六局集团太原铁路建设有限公司 Construction method for passing existing river channel under open trench tunnel

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