CN105463997A - Erecting method for segmental beam - Google Patents
Erecting method for segmental beam Download PDFInfo
- Publication number
- CN105463997A CN105463997A CN201610001949.2A CN201610001949A CN105463997A CN 105463997 A CN105463997 A CN 105463997A CN 201610001949 A CN201610001949 A CN 201610001949A CN 105463997 A CN105463997 A CN 105463997A
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- China
- Prior art keywords
- beam sections
- support
- erection method
- prefabricated section
- erection
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to an erecting method for a segmental beam. The erecting method for the segmental beam comprises the following steps of (1) arranging a bracket on the operation surface of the segmental beam to be erected; (2) using hoisting equipment to hoist precast blocks to the bracket in a bridge span to be erected in sequence; (3) splicing the precast blocks on the bracket; and (4) after the segmental beam is spliced, removing the bracket to the next adjacent span and repeating the steps until the rest segmental beams are erected. According to the invention, as the hoisting equipment and a steel framework work together during erecting, the erecting method for the segmental beam has the advantages of low manufacturing cost, high economic efficiency and convenient mounting and transportation. As steel members of the steel framework are connected with each other through bolts, the steel framework is convenient to mount and demount and can be recycled. As the precast blocks of the segmental beam are located by using the hoisting equipment and a three-dimensional jack, the erecting method is convenient to operate.
Description
Technical field
The present invention relates to the erection method of beam sections.
Background technology
Precast Concrete Segmental Bridges technique, simplified summary is exactly: whole Kong Liang is divided into the little sections being convenient to transport for long-distance, after precasting yard is prefabricated, moves the scene of setting a roof beam in place to, and by special Segmental assembling bridge-erecting machine assembled pore-forming piecemeal, hole-specifically construction is until terminate.
General erection uses highway or railway bridge erecting erecting, application number be 201410317256.5 application for a patent for invention a kind of prefabricated subsection beam bridge formation machine and segment installation method are disclosed, the girder of Bridge Erector is arranged support mechanism, the longitudinal prestressing stretch-draw of beam sections and being assembled in support mechanism is carried out, control the longitudinal line style precision of each beam sections by the transverse shifting of support mechanism, control the vertical line style precision of each beam sections by the vertical lifting of support mechanism.But Bridge Erector input cost is very large, less economical, install with transport inconvenient.
Summary of the invention
The problems referred to above that object of the present invention exists to solve prior art, provide a kind of erection method of beam sections.
To achieve these goals, technical scheme of the present invention is as follows:
An erection method for beam sections, comprises the steps:
(1) treating that erection beam sections scope of operation place arranges support;
(2) use crane gear successively by prefabricated section handling to waiting to set up on the support in spanning;
(3) carry out on support assembled;
(4) after segment installation completes, striking, to adjacent next across place repeat above-mentioned steps to complete all the other beam sections erection.
Described support is made up of firm component, with bolts between described firm component.
Described firm component comprises bracing members, stull, diagonal brace and Two bors d's oeuveres i iron.。
Bracing members top is located at by described Two bors d's oeuveres i iron, and described stull is located between Two bors d's oeuveres i iron and bracing members.
Described bracing members is perpendicular to ground, and bracing members spacing distance is equal, and described diagonal brace is located between adjacent steel support.
The basis of described support adopts precast plate basis, and the pre-buried threaded reinforcing bar of precast plate, with frame bottom bolt.
Described segment installation is implemented as: measurement and positioning first prefabricated section, by the first prefabricated section and the second prefabricated section coupling face coating adhesive, applies the solidification of interim prestressing force jam-packed, so repeats, assembled extremely originally across tail boom successively, the girder pre-stressed steel bundle of this bridge of stretch-draw.
Described measurement and positioning first prefabricated section is implemented as, and arranges three-dimensional jack, adjust its position by three-dimensional jack and crane gear under prefabricated section.
The invention has the beneficial effects as follows:
The present invention uses lifting gear and Steel Structure to coordinate erection, and cost is low, and economy is high, convenient installation and transport.With bolts between the firm component of Steel Structure, be convenient to peace and tear open and can recycle.Use the prefabricated section of lifting gear and three-dimensional jack location beam sections, easy to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of support of the present invention;
Fig. 3 is the structural representation before n to n+3 bridge pier beam sections of the present invention erection;
Fig. 4 is the structural representation that n to n+1 bridge pier beam sections of the present invention has been set up;
Fig. 5 is the structural representation that n+1 to n+3 bridge pier of the present invention arranges support;
Fig. 6 is the structural representation that n+1 to n+2 bridge pier segment installation of the present invention completes;
Fig. 7 is the structural representation of crane gear of the present invention to n+2 to n+3 bridge pier prefabricated section to be hung;
Fig. 8 is the structural representation that n+1 to n+2 bridge pier support of the present invention is dismantled afterwards and n+2 to n+3 bridge pier segment installation completes;
Fig. 9 is the structural representation that n to n+3 bridge pier beam sections of the present invention has been set up.
Detailed description of the invention
For making to have a better understanding and awareness architectural feature of the present invention and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
N, n+1, n+2, n+3 in Fig. 3-Fig. 9 are the serial number of waiting to set up beam sections bridge pier, in Fig. 6-Fig. 81,2,3,4,5,6,7,8, m is the serial number of prefabricated section in beam sections.
As shown in Figures 1 to 9, the erection method of a kind of beam sections of the present invention, comprises the steps:
(1) treating that erection beam sections scope of operation place arranges support.
Before arranging support, check construction substructure, levelling of the land is constructed, measurement and positioning basic plane position and absolute altitude.Beam sections spanning to be assembled and adjacent next across place's construction lift equipment, at support erection beam sections scope of operation place, be equipped with the crane gear across full width bridge, be responsible for this scope of operation place for beam, lifting operation.In the present embodiment, crane gear is crane.
Support is made up of firm component, and be steel structure support, firm component is divided into bracing members 1, stull 3, diagonal brace 2 and Two bors d's oeuveres i iron 4, with bolts between firm component.On-the-spot peace is torn open conveniently, can repeatedly fall to use.In the present embodiment, bracing members 1 is spiral steel pipe bolt, the quantity of spiral steel pipe is set according to antenna height, the bottom of bracing members 1 is by flange and precast plate bolt, precast plate adopts C30 precast plate, for cast in situs, the pre-buried threaded reinforcing bar of precast plate, so as with bracing members 1 bottom flange bolt.Bracing members 1 interval is evenly longitudinally arranged, and adjacent steel arranges scissor diagonal brace 2 between supporting 1, with bolts between diagonal brace 2 and bracing members 1, can by arranging angle steel or channel-section steel realization on bracing members 1.Bracing members 1 upper end horizontally set stull 3, in stull 3 and interval, bracing members 1 corresponding position arranges Two bors d's oeuveres i iron 4, to strengthen the stability of support.
(2) use crane gear successively by prefabricated section 6 handling to waiting to set up on the support in spanning.
With Beam transportation vehicle, beam sections is transported to n+3 bridge pier place, with crane gear lifting, then by beam sections handling to spanning to be assembled.All the other prefabricated sections 6 are placed successively according to the method from n+1 pier to n+2 pier.
(3) carry out on support assembled.
During segment installation, use three-dimensional jack 5 at the bottom of crane gear and beam, first Measurement accuracy locates No. 1 block, after No. 1 block is in place, 1, bonding adhesive is smeared in No. 2 Block-matching faces, No. 2 blocks are mated with it locate and apply interim prestressing force jam-packed and solidify, repeat above step assembled extremely originally across tail boom successively.
(4) after segment installation completes, striking, to adjacent next across place repeat above-mentioned steps to complete all the other beam sections erection.
The girder pre-stressed steel bundle of cable stay bridge, removes n+1 to n+2 across support, switches, and repeat step (1) to (3) operation, assembled lower spanning inner segments beam, until complete all the other bridge constructions.
More than show and describe the advantage of the general principle of invention, principal character and invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and manual; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (8)
1. an erection method for beam sections, comprises the steps:
(1) treating that erection beam sections scope of operation place arranges support;
(2) use crane gear successively by prefabricated section handling to waiting to set up on the support in spanning;
(3) carry out on support assembled;
(4) after segment installation completes, striking, to adjacent next across place repeat above-mentioned steps to complete all the other beam sections erection.
2. the erection method of beam sections as claimed in claim 1, it is characterized in that, described support is made up of firm component, with bolts between described firm component.
3. the erection method of beam sections as claimed in claim 2, it is characterized in that, described firm component comprises bracing members, stull, diagonal brace and Two bors d's oeuveres i iron.
4. the erection method of beam sections as claimed in claim 3, it is characterized in that, bracing members top is located at by described Two bors d's oeuveres i iron, and described stull is located between Two bors d's oeuveres i iron and bracing members.
5. the erection method of beam sections as claimed in claim 3, it is characterized in that, described bracing members is perpendicular to ground, and bracing members spacing distance is equal, and described diagonal brace is located between adjacent steel support.
6. the erection method of the beam sections as described in any one of claim 1 to 5, is characterized in that, the basis of described support adopts precast plate basis, and the pre-buried threaded reinforcing bar of precast plate, with frame bottom bolt.
7. the erection method of beam sections as claimed in claim 1, it is characterized in that, described segment installation is implemented as: measurement and positioning first prefabricated section, by the first prefabricated section and the second prefabricated section coupling face coating adhesive, apply the solidification of interim prestressing force jam-packed, repetition like this, assembled extremely originally across tail boom successively, the girder pre-stressed steel bundle of this bridge of stretch-draw.
8. the erection method of beam sections as claimed in claim 7, it is characterized in that, described measurement and positioning first prefabricated section is implemented as, and arranges three-dimensional jack, adjust its position by three-dimensional jack and crane gear under prefabricated section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001949.2A CN105463997A (en) | 2016-01-06 | 2016-01-06 | Erecting method for segmental beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610001949.2A CN105463997A (en) | 2016-01-06 | 2016-01-06 | Erecting method for segmental beam |
Publications (1)
| Publication Number | Publication Date |
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| CN105463997A true CN105463997A (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610001949.2A Pending CN105463997A (en) | 2016-01-06 | 2016-01-06 | Erecting method for segmental beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN105463997A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205934A (en) * | 2019-04-30 | 2019-09-06 | 中铁八局集团第二工程有限公司 | One kind is set a roof beam in place system for the mobile assembled of precast segmental beam Support Method joggle beam |
| CN111119071A (en) * | 2020-01-16 | 2020-05-08 | 中建七局安装工程有限公司 | Construction method for assembling precast concrete segment box girder |
| CN111188276A (en) * | 2020-01-17 | 2020-05-22 | 中铁电气化局集团有限公司 | Segmental beam sliding and assembling construction method |
| CN111877162A (en) * | 2020-07-01 | 2020-11-03 | 中铁大桥局集团第五工程有限公司 | Assembling construction method for prefabricated segment box girder support of urban viaduct |
| CN112095477A (en) * | 2020-09-17 | 2020-12-18 | 中国十七冶集团有限公司 | Construction method of prefabricated segmental beam |
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| NL9500354A (en) * | 1995-02-23 | 1996-10-01 | Lastra Breda B V | Method for positioning a construction element, and device for this method |
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- 2016-01-06 CN CN201610001949.2A patent/CN105463997A/en active Pending
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| CN201665819U (en) * | 2010-03-16 | 2010-12-08 | 中国第一冶金建设有限责任公司 | Detachable modularization temporary support used for installing steel box girder road surface |
| CN102995561A (en) * | 2011-09-19 | 2013-03-27 | 曹新恒 | Universal bridge cast-in-place support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110205934A (en) * | 2019-04-30 | 2019-09-06 | 中铁八局集团第二工程有限公司 | One kind is set a roof beam in place system for the mobile assembled of precast segmental beam Support Method joggle beam |
| CN111119071A (en) * | 2020-01-16 | 2020-05-08 | 中建七局安装工程有限公司 | Construction method for assembling precast concrete segment box girder |
| CN111188276A (en) * | 2020-01-17 | 2020-05-22 | 中铁电气化局集团有限公司 | Segmental beam sliding and assembling construction method |
| CN111877162A (en) * | 2020-07-01 | 2020-11-03 | 中铁大桥局集团第五工程有限公司 | Assembling construction method for prefabricated segment box girder support of urban viaduct |
| CN112095477A (en) * | 2020-09-17 | 2020-12-18 | 中国十七冶集团有限公司 | Construction method of prefabricated segmental beam |
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Application publication date: 20160406 |