CN112627038A - Installation and construction method of steel box girder of steel structure bridge - Google Patents
Installation and construction method of steel box girder of steel structure bridge Download PDFInfo
- Publication number
- CN112627038A CN112627038A CN202011501529.3A CN202011501529A CN112627038A CN 112627038 A CN112627038 A CN 112627038A CN 202011501529 A CN202011501529 A CN 202011501529A CN 112627038 A CN112627038 A CN 112627038A
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- steel
- steel box
- box girder
- size
- bridge
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 190
- 239000010959 steel Substances 0.000 title claims abstract description 190
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 title claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Abstract
The invention discloses an installation and construction method of a steel box girder of a steel structure bridge, relates to the technical field of steel structure bridges, and particularly relates to an installation and construction method of the steel box girder of the steel structure bridge, which comprises the following steps: s1, mounting a steel box size standard mounting rack; s2, determining a standard mounting rack for the size of the steel box; s3, adjusting the assembling size of the steel box girder; and S4, mounting the whole lifting steel box girder on the bridge for seam welding. The installation and construction method of the steel box girder of the steel structure bridge can be assembled according to the size of the steel box girder, the steel box girder is assembled in blocks, the steel box girder is matched with the steel structure bridge in blocks, meanwhile, the steel box girder in blocks is installed on a crane and a steel box girder elevator installation frame, the crane and the steel box girder elevator are started, the steel box girder of the steel structure bridge can be lifted along the tracks of the crane and the steel box girder elevator, the steel box girder of the steel structure bridge adopting a single lifting device is changed, and the steel box girder is prevented from inclining and shaking in the lifting and assembling process.
Description
Technical Field
The invention relates to the technical field of steel structure bridges, in particular to a mounting construction method of a steel box girder of a steel structure bridge.
Background
The steel structure bridge is generally composed of bridge piers and steel box girders erected on the bridge piers, and the steel box girders are called steel plate box girders and are common structural forms of large-span bridges.
The assembly and hoisting of prefabricated parts and steel box girders are carried out by the mounting and construction technology of the steel box girders of the existing steel structure bridges, but the assembly and hoisting of the steel box girders often have the following problems:
1) the steel box girder has large size deviation, and later assembly and filling are not easy;
2) the steel box girder of the steel structure bridge adopts single hoisting equipment;
3) the steel box girder is easy to incline and rock in the hoisting and assembling process;
4) when the steel box girder of the steel structure bridge is constructed, the later-period welding seam deviation is large.
These problems lead to the steel structure bridge effect to worsen, influence the atress and the equipment effect of steel structure bridge to influence structural security, simultaneously, owing to need carry out adjustment such as position, anchor length, straightness that hangs down to the steel box girder, increased construction cost from this, prolonged construction cycle, and when the steel box girder cut the adjustment, generally used cutting machine or electric welding, there is the potential safety hazard, also increased the cost and dropped into.
Therefore, a convenient, efficient, safe and reliable method for installing and constructing the steel box girder of the steel structure bridge is needed to be developed aiming at the existing construction problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an installation and construction method of a steel box girder of a steel structure bridge, and solves the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: a mounting and construction method of a steel box girder of a steel structure bridge comprises the following steps:
s1, steel box size standard mounting rack: measuring and releasing a control line and the central position of the steel box girder, and adjusting a steel box size standard mounting rack;
s2, determining a standard mounting rack for the size of the steel box: determining the size of a steel box through a steel box beam assembling device, and determining the size of a steel box beam of the steel structure bridge;
s3, adjusting the assembling size of the steel box girder: and pre-splicing the steel box girder splicing tire seats of the block steel box girder splicing device.
And S4, mounting the whole lifting steel box girder on the bridge for seam welding.
Preferably, the step S2 of determining a steel box size standard mounting rack, and the using method of the auxiliary equipment includes the following steps:
1) the auxiliary device has a welding effect, can independently realize the functions of bending, vibrating, controlling the position of a cutting device, cutting and the like, starts and cuts a main shaft disc of the motor, and the motor can effectively provide driving force for a cutting system and a straightening and vibrating system;
2) and the straightening steel box has the size standard: the steel box size standard is bent hydraulically by means of a hydraulic cylinder, part of steel box steel frames are correspondingly bent and assembled, and the steel box steel frames are assembled according to the size of a steel box girder of a steel structure bridge.
Preferably, the step S3 of adjusting the assembly size of the steel box girder includes the following steps:
1) the steel box girder that will assemble carries out the piecemeal equipment, assembles according to steel construction bridge size for the piecemeal steel box girder assembles on the bridge girder erection machine hoisting machine, assembles in advance on the base with the help of the steel box girder of piecemeal steel box girder assembly device, and the steel box girder lifts by crane the monoblock simultaneously and installs on steel box girder elevator cage mounting bracket, combines hoisting machine and steel box girder elevator cage to carry out construction and installation.
Preferably, S4, lift by crane steel case roof beam monoblock and install on the bridge and carry out the seam welding, auxiliary assembly includes cutting system, alignment vibration system, hydraulic pump and controller, lifting machine and steel case roof beam elevator case.
The invention provides an installation and construction method of a steel box girder of a steel structure bridge, which has the following beneficial effects:
1. the installation and construction method of the steel box girder of the steel structure bridge can be assembled according to the size of the steel box girder, the steel box girder is assembled in blocks, the steel box girder is matched with the steel structure bridge in blocks, meanwhile, the steel box girder in blocks is installed on a crane and a steel box girder elevator installation frame, the crane and the steel box girder elevator are started, the steel box girder of the steel structure bridge can be lifted along the tracks of the crane and the steel box girder elevator, the steel box girder of the steel structure bridge adopting a single lifting device is changed, and the steel box girder is prevented from inclining and shaking in the lifting and assembling process.
2. This installation construction method of steel box girder of steel structure bridge improves steel structure bridge's atress and equipment effect, improve steel structure bridge structure security, and simultaneously, to steel box girder steel box size standard mounting bracket, adjust the steel box girder and assemble the size, reduce steel box girder installation deviation angle of steel structure bridge, reduce construction cost, shorten construction cycle, and when the steel box girder carries out the cutting adjustment, realize the alignment of reinforcing bar fast, the cutting, improve the efficiency of construction, reduce artifical input, shorten construction cycle, the original intention of assembled quick construction has been realized.
Drawings
FIG. 1 is a schematic view of the flow structure of the present invention;
FIG. 2 is a schematic diagram of a site for practicing the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the present invention provides a technical solution: a mounting and construction method of a steel box girder of a steel structure bridge comprises the following steps:
s1, steel box size standard mounting rack: measuring and releasing a control line and the central position of the steel box girder, and adjusting a steel box size standard mounting rack;
s2, determining a standard mounting rack for the size of the steel box: determining the size of a steel box through a steel box beam assembling device, and determining the size of a steel box beam of the steel structure bridge;
s3, adjusting the assembling size of the steel box girder: and pre-splicing the steel box girder splicing tire seats of the block steel box girder splicing device.
And S4, mounting the whole lifting steel box girder on the bridge for seam welding.
S2, determining a standard mounting rack for the size of the steel box, wherein the use method of the auxiliary equipment comprises the following steps:
1. the auxiliary device for adjusting the steel box girder of the assembled steel structure bridge is powered on, has a welding effect, can independently realize the functions of bending, vibrating, controlling the position of a cutting device, cutting and the like, starts and cuts a main shaft disc of the motor, and the motor can effectively provide driving force for a cutting system and a straightening and vibrating system;
2. straightening steel box size standard: the steel box size standard is bent hydraulically by means of a hydraulic cylinder, part of steel box steel frames are correspondingly bent and assembled, and the steel box steel frames are assembled according to the size of a steel box girder of a steel structure bridge.
S3, adjusting the splicing size of the steel box girder, wherein the use method of the auxiliary equipment comprises the following steps:
1. the steel case roof beam that will assemble carries out the piecemeal equipment, assembles according to steel construction bridge size for the piecemeal steel case roof beam is assembled on the bridge girder erection machine hoisting machine, assembles in advance on assembling the base with the help of the steel case roof beam of piecemeal steel case roof beam assembly device, and the whole piece of hoisting of steel case roof beam is installed on steel case roof beam elevator cage mounting bracket simultaneously, combines hoisting machine and steel case roof beam elevator cage to carry out construction and installation.
And S4, installing the whole lifting steel box girder on the bridge for seam welding, wherein the auxiliary equipment comprises a cutting system, a straightening vibration system, a hydraulic pump, a controller, a crane and a steel box girder elevator cage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (4)
1. The mounting and construction method of the steel box girder of the steel structure bridge is characterized by comprising the following steps of:
s1, steel box size standard mounting rack: measuring and releasing a control line and the central position of the steel box girder, and adjusting a steel box size standard mounting rack;
s2, determining a standard mounting rack for the size of the steel box: determining the size of a steel box through a steel box beam assembling device, and determining the size of a steel box beam of the steel structure bridge;
s3, adjusting the assembling size of the steel box girder: and pre-splicing the steel box girder splicing tire seats of the block steel box girder splicing device.
And S4, mounting the whole lifting steel box girder on the bridge for seam welding.
2. The method for installing and constructing the steel box girder of the steel structure bridge as claimed in claim 1, wherein the step S2 of determining the standard installation rack of the steel box size, the method for using the auxiliary equipment comprises the following steps:
1) the auxiliary device has a welding effect, can independently realize the functions of bending, vibrating, controlling the position of a cutting device, cutting and the like, starts and cuts a main shaft disc of the motor, and the motor can effectively provide driving force for a cutting system and a straightening and vibrating system;
2) and the straightening steel box has the size standard: the steel box size standard is bent hydraulically by means of a hydraulic cylinder, part of steel box steel frames are correspondingly bent and assembled, and the steel box steel frames are assembled according to the size of a steel box girder of a steel structure bridge.
3. The installation and construction method of the steel box girder of the steel structure bridge as claimed in claim 1, wherein: s3, adjusting the splicing size of the steel box girder, wherein the using method of the auxiliary equipment comprises the following steps:
1) the steel case roof beam that will assemble carries out the piecemeal equipment, assembles according to steel construction bridge size for the piecemeal steel case roof beam is assembled on the bridge girder erection machine hoisting machine, assembles in advance on assembling the base with the help of the steel case roof beam of piecemeal steel case roof beam assembly device, and the whole piece of hoisting of steel case roof beam is installed on steel case roof beam elevator cage mounting bracket simultaneously, combines hoisting machine and steel case roof beam elevator cage to carry out construction and installation.
4. The installation and construction method of the steel box girder of the steel structure bridge as claimed in claim 1, wherein: s4, the whole lifting steel box girder is installed on the bridge for seam welding, and the auxiliary equipment comprises a cutting system, a straightening vibration system, a hydraulic pump, a controller, a crane and a steel box girder elevator cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501529.3A CN112627038A (en) | 2020-12-17 | 2020-12-17 | Installation and construction method of steel box girder of steel structure bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011501529.3A CN112627038A (en) | 2020-12-17 | 2020-12-17 | Installation and construction method of steel box girder of steel structure bridge |
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| Publication Number | Publication Date |
|---|---|
| CN112627038A true CN112627038A (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011501529.3A Pending CN112627038A (en) | 2020-12-17 | 2020-12-17 | Installation and construction method of steel box girder of steel structure bridge |
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| Country | Link |
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| CN (1) | CN112627038A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113428A (en) * | 2014-10-02 | 2015-12-02 | 温州市申邦市政工程有限公司 | Installation and construction method for high-altitude construction device after rotation of bridge |
| CN109797651A (en) * | 2019-01-25 | 2019-05-24 | 东南大学 | A kind of flat combined box beam with corrugated sheet steel internal model |
| CN110878530A (en) * | 2019-12-27 | 2020-03-13 | 中交二公局东萌工程有限公司 | Installation and construction method of steel box girder of steel structure bridge |
-
2020
- 2020-12-17 CN CN202011501529.3A patent/CN112627038A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113428A (en) * | 2014-10-02 | 2015-12-02 | 温州市申邦市政工程有限公司 | Installation and construction method for high-altitude construction device after rotation of bridge |
| CN109797651A (en) * | 2019-01-25 | 2019-05-24 | 东南大学 | A kind of flat combined box beam with corrugated sheet steel internal model |
| CN110878530A (en) * | 2019-12-27 | 2020-03-13 | 中交二公局东萌工程有限公司 | Installation and construction method of steel box girder of steel structure bridge |
Non-Patent Citations (1)
| Title |
|---|
| 王庆曾: "港珠澳大桥钢箱梁板单元制造工艺及质量控制", 《世界桥梁》 * |
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Application publication date: 20210409 |
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