CN106149564B - A kind of installation method of three stride continuous steel bridge - Google Patents
A kind of installation method of three stride continuous steel bridge Download PDFInfo
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- CN106149564B CN106149564B CN201510203255.2A CN201510203255A CN106149564B CN 106149564 B CN106149564 B CN 106149564B CN 201510203255 A CN201510203255 A CN 201510203255A CN 106149564 B CN106149564 B CN 106149564B
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Abstract
The present invention relates to a kind of installation method of three stride continuous steel bridge, comprise the following steps：(1) by steel bridge equitable subsection, planning arrangement crane track route and Standing position of a crane；(2) temporary support is arranged；(3) two sides steel bridge bearing embedded part and steel column embedded section are installed；(4) girder steel between two sides steel column and steel column is installed；(5) in each steel bridge segmentation of installation on ground；(6) steel bridge segmentation in two sides is installed, and is welded and fixed；(7) cross a river steel bridge segmentation on river is installed, and is welded and fixed.Steel bridge is divided into some segmentations by the present invention, and before lifting is segmented, parts are spliced into each segmentation on the ground, solve the problems, such as lifting is difficult, steel bridge can not highway transportation, reduce overhead welding operation, greatly improve the efficiency, and reduce risk.
Description
Technical field
The present invention relates to a kind of installation method of three stride continuous steel bridge.
Background technology
Three stride continuous steel bridge goes back the highway of crossing river channel two sides in addition to crossing river channel, when mounted Xu Kua highways cross a river
Construct in road.In the installation of this long-span bridge, the main problems are as follows：
（1）Steel bridge periphery is river, highway, landscape planting etc., and except the landholding taken over for use temporarily, remaining must not be destroyed.
Landscape River is more narrow and small, and piling ship cannot be introduced into, and not allow piling construction in Landscape River.Therefore, steel bridge is installed, only
It can consider to lift on river two sides, lifting radius is big.
（2）Steel bridge is large-span truss structure, and various informative, the section of steel bridge pontic is larger, can not be in factory process system
Pass through highway transportation to scene after work.
（3）Traditional high altitude bulk and overhead welding inefficiency, it is difficult to ensure that the installation accuracy of steel bridge, while installing
During, steel bridge parts are continually lifted, add security risk
The content of the invention
It is an object of the present invention to solve the deficiency of the existing technology and provide a kind of installation method of three stride continuous steel bridge.
In order to realize the above object the present invention relates to a kind of installation method of three stride continuous steel bridge, comprise the following steps：
（1）By steel bridge equitable subsection, planning arrangement crane track route and Standing position of a crane；
（2）Arrange temporary support；
（3）Two sides steel bridge bearing embedded part and steel column embedded section are installed；
（4）Girder steel between two sides steel column and steel column is installed；
（5）In each steel bridge segmentation of installation on ground；
（6）Steel bridge segmentation in two sides is installed, and is welded and fixed；
（7）Cross a river steel bridge segmentation on river is installed, and is welded and fixed.
Carry out step（5）When, roadbed paving plate.Step（5）Comprise the following steps：
（a）Base area sample erects moulding bed column；
（b）By the upper moulding bed of lower boom lifting of steel bridge segmentation, and position fixation；
（c）Contact rod piece between lower boom is installed, and positions fixation；
（d）Steel bridge segmentation both sides vertical web rod, diagonal web member are installed, and position fixation, then is installed on it and chord member and positions fixation；
（e）Temporary support is installed between top boom；
（f）Complete welding.
Step（6）Specially：During installation, aid in installing using temporary support, and fix steel bridge with cable wind rope and be segmented, welding
After the completion of loose hook again.
Steel bridge is divided into some segmentations by the present invention, solves the problems, such as that lifting radius is big.Before lifting is segmented, on ground
On parts are spliced into each segmentation, can not highway transportation so solving steel bridge due to being to splice steel bridge segmentation at the scene
Problem, and accordingly reduce cost of transportation.In addition, the splicing of steel bridge segmentation is completed on ground, therefore reduce overhead welding
Operation, greatly improves the efficiency, and reduces risk.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention.
Embodiment
（Embodiment 1）
The present invention relates to a kind of installation method of three stride continuous steel bridge, comprise the following steps：
1st, by steel bridge equitable subsection, planning arrangement crane track route and Standing position of a crane.
For the ease of installation, steel bridge is divided into some segmentations.After steel bridge Holistic modeling, according to mount scheme and combine interim
The position of support and crane machinery rated weight ability, carry out steel bridge main body steel construction preliminary segmentation division.According to
The position of centre of gravity of the segmentation of Preliminary division calculates analysis crane lifting radius, and is adjusted at any time to lifting requirements are met, really
Fixed final lifting segmentation position.
2nd, temporary support is arranged
Steel bridge is installed as segmental hoisting, before stress is reached, needs temporary support Auxiliary support, river both sides it is interim
Support as the combined support of dual-gripper composition.
The 3rd, two sides steel bridge bearing embedded part and steel column embedded section are installed.
The 4th, girder steel between two sides steel column and steel column is installed.
5th, for the ease of communications and transportation and reduction working at height, assembled each steel bridge segmentation, comprises the following steps on the ground：
（a）Base area sample erects moulding bed column；
（b）By the upper moulding bed of lower boom lifting of steel bridge segmentation, and position fixation；
（c）Contact rod piece between lower boom is installed, and positions fixation；
（d）Steel bridge segmentation both sides vertical web rod, diagonal web member are installed, and position fixation, then is installed on it and chord member and positions fixation；
（e）Temporary support is installed between top boom, is deformed with ensureing that segmentation is reduced in hoisting process；
（f）Complete welding.
On-site consolidation place mainly utilizes periphery highway, in order to ensure the precision of component assembling, prevents component from assembling
During caused due to the differential settlement of moulding bed assembly error, and for highway safety road surface it is without damage, in public affairs
Base board is laid with road.
The 6th, steel bridge segmentation in two sides is installed, and be welded and fixed.Partial segments are segmented for tiltedly overhanging, therefore use " dorsal funciculus overturn-preventing "
Method, aid in installing using temporary support, be fixed with cable wind rope, can loose hook after the completion of welding.
The 7th, cross a river steel bridge segmentation on river is installed, and be welded and fixed.
The present embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read,
Modification of the those skilled in the art to the various equivalent forms of the present invention falls within the model that the application appended claims are limited
Enclose.
Claims (1)
1. a kind of installation method of three stride continuous steel bridge, comprises the following steps：
（1）By steel bridge equitable subsection, planning arrangement crane track route and Standing position of a crane；
（2）Arrange temporary support；
（3）Two sides steel bridge bearing embedded part and steel column embedded section are installed；
（4）Girder steel between two sides steel column and steel column is installed；
（5）In each steel bridge segmentation of installation on ground；
（6）Steel bridge segmentation in two sides is installed, and is welded and fixed；
（7）Cross a river steel bridge segmentation on river is installed, and is welded and fixed；
It is characterized in that, carry out step（5）When, roadbed paving plate；Step（5）Comprise the following steps：
（a）Base area sample erects moulding bed column；
（b）By the upper moulding bed of lower boom lifting of steel bridge segmentation, and position fixation；
（c）Contact rod piece between lower boom is installed, and positions fixation；
（d）Steel bridge segmentation both sides vertical web rod, diagonal web member are installed, and position fixation, then is installed on it and chord member and positions fixation；
（e）Temporary support is installed between top boom；
（f）Complete welding；
Step（6）Specially：During installation, aid in installing using temporary support, and fix steel bridge with cable wind rope and be segmented, welding is completed
Loose hook again afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203255.2A CN106149564B (en) | 2015-04-24 | 2015-04-24 | A kind of installation method of three stride continuous steel bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510203255.2A CN106149564B (en) | 2015-04-24 | 2015-04-24 | A kind of installation method of three stride continuous steel bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN106149564A CN106149564A (en) | 2016-11-23 |
| CN106149564B true CN106149564B (en) | 2018-05-15 |
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| CN201510203255.2A Active CN106149564B (en) | 2015-04-24 | 2015-04-24 | A kind of installation method of three stride continuous steel bridge |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106592864B (en) * | 2016-12-30 | 2019-03-12 | 江苏沪宁钢机股份有限公司 | A kind of steel structural roof beam string segmentation installation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435182A (en) * | 2008-12-30 | 2009-05-20 | 中铁大桥局股份有限公司 | Steel bridge folding temporary locking method |
| CN101619562A (en) * | 2009-07-21 | 2010-01-06 | 中交第二公路勘察设计研究院有限公司 | Open web type continuous steel bridge structure and buckling, hanging and pouring method of cantilever |
| CN101871198A (en) * | 2010-07-16 | 2010-10-27 | 上海同济宝冶建设机器人有限公司 | Vertical turning lifting installation method for steel bridge arch ribs |
| CN102433841A (en) * | 2011-12-28 | 2012-05-02 | 中铁二局股份有限公司 | Method for installing abnormal-shape curve steel box girder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265417A (en) * | 1999-03-12 | 2000-09-26 | Kawaju Koji Kk | Moving timbering construction method for bridge floor slab overhang section |
-
2015
- 2015-04-24 CN CN201510203255.2A patent/CN106149564B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435182A (en) * | 2008-12-30 | 2009-05-20 | 中铁大桥局股份有限公司 | Steel bridge folding temporary locking method |
| CN101619562A (en) * | 2009-07-21 | 2010-01-06 | 中交第二公路勘察设计研究院有限公司 | Open web type continuous steel bridge structure and buckling, hanging and pouring method of cantilever |
| CN101871198A (en) * | 2010-07-16 | 2010-10-27 | 上海同济宝冶建设机器人有限公司 | Vertical turning lifting installation method for steel bridge arch ribs |
| CN102433841A (en) * | 2011-12-28 | 2012-05-02 | 中铁二局股份有限公司 | Method for installing abnormal-shape curve steel box girder |
Non-Patent Citations (1)
| Title |
|---|
| "浅谈钢构人行便桥安装";谢如金;《江苏水利》;20081028(第10期);第16页第2-3节 * |
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| CN106149564A (en) | 2016-11-23 |
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