CN110528403B - Construction method for side-span non-wet joint section prefabricated cantilever assembly continuous beam - Google Patents
Construction method for side-span non-wet joint section prefabricated cantilever assembly continuous beam Download PDFInfo
- Publication number
- CN110528403B CN110528403B CN201910840426.0A CN201910840426A CN110528403B CN 110528403 B CN110528403 B CN 110528403B CN 201910840426 A CN201910840426 A CN 201910840426A CN 110528403 B CN110528403 B CN 110528403B
- Authority
- CN
- China
- Prior art keywords
- pier
- midspan
- prefabricated
- section
- sections
- Prior art date
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
- E01D21/10—Cantilevered erection
- E01D21/105—Balanced cantilevered erection
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a construction method for assembling a continuous beam by prefabricating cantilever on a side span section without wet joint, wherein the continuous beam comprises a beam body and a pier stud, the beam body is divided into a plurality of midspan sections and side spans at two ends, each midspan section is divided into 2n midspan prefabricated sections, the side spans are divided into a plurality of side span prefabricated sections, and the pier stud comprises a plurality of middle piers and side piers at two ends; the method comprises the following steps: installing a middle pier top No. 0 segment of each middle pier, and arranging a pier top temporary consolidation facility for each middle pier; sequentially and symmetrically assembling 2n midspan prefabricated sections of each midspan from the directions of two sides of the section 0 at the top of each midspan; pouring concrete into the closed section wet joint between two adjacent middle spans; and constructing the side span prefabricated sections of each side span, installing full-bridge prestressed steel bundles, tensioning the prestressed steel bundles, grouting the prestressed pipeline, removing the pier top temporary consolidation facilities of each middle pier, and completing the conversion of the bridge system. The method reduces closure sections, construction steps, site concrete pouring workload and construction efficiency.
Description
Technical Field
The invention relates to a bridge construction method, in particular to a construction method for assembling a continuous beam by prefabricating cantilever on a side span non-wet joint segment.
Background
The segment prefabrication and assembly technology is that a beam body is longitudinally divided into a plurality of segments, prefabrication is carried out in a factory or on a construction site according to a preset design scheme, and after the segments are erected in place, prestressed steel beams are tensioned to assemble the segments into a complete beam body. At present, the splicing mode among the sectional beams mostly adopts a cementing mode of concrete bonding or a wet welding mode of reserving reinforced concrete among the sections. The gluing mode is mainly used among the segment precast blocks, and the wet welding mode is mainly used among the segment precast blocks and the non-segment precast blocks, namely, the closure segment position.
In the conventional prefabricated bridge, the side span closure section and the middle span closure section are constructed in a cast-in-place mode, the bridge prefabrication rate still has a certain rising space, and the construction quality of the closure sections is difficult to control due to the limitation of field conditions during wet joint construction; the working period of the working procedures of building templates, binding reinforcing steel bars, pouring concrete, curing concrete, removing templates and the like on site is longer. In addition, the precision of the wet joint of the closure section is not high, the speed is low, and the construction efficiency is still to be improved.
Disclosure of Invention
The invention aims to solve the technical problems in the background technology and provides a construction method for assembling a continuous beam by prefabricating cantilever on a side span non-wet joint section.
The invention adopts the following technical scheme: a construction method for a side span non-wet joint section prefabricated cantilever assembly continuous beam comprises the steps that the constructed side span non-wet joint section prefabricated cantilever assembly continuous beam comprises a beam body and a pier stud, the beam body is divided into a plurality of midspan and two end side spans, each midspan is divided into 2n midspan prefabricated sections, closure section wet joints are arranged between every two adjacent midspans, the side spans are divided into a plurality of side span prefabricated sections, and the pier stud comprises a plurality of midspan piers and two end side piers;
arranging pier top sections of each middle pier as middle pier top 0 sections, and sequentially numbering the n middle-span prefabricated sections of each middle span from the middle pier top 0 section to the left side and the right side respectively;
the construction method comprises the following steps:
A. installing a middle pier top No. 0 segment of each middle pier, and arranging a pier top temporary consolidation facility for each middle pier;
B. sequentially and symmetrically assembling 2n midspan prefabricated sections of each midspan from the directions of two sides of the section 0 at the top of the middle pier of each middle pier;
C. concrete pouring is carried out on the closure section wet joint between two adjacent midspans;
D. and constructing the side span prefabricated sections of each side span, installing full-bridge prestressed steel bundles, tensioning the prestressed steel bundles, grouting the prestressed pipeline, removing the pier top temporary consolidation facilities of each middle pier, and completing the conversion of the bridge system.
In a preferred embodiment, the construction method is that n midspan prefabricated sections of each midspan from the section 0 of the middle pier top to the left and the right are sequentially numbered as a first midspan prefabricated section and a second midspan prefabricated section … … nth midspan prefabricated section; the plurality of middle piers are a first middle pier, a second middle pier … … m-th middle pier;
the step B comprises the following steps:
b1, simultaneously lifting the first midspan prefabricated section on the left side of the first middle pier and the first midspan prefabricated section on the right side of the first middle pier, placing the first midspan prefabricated section on a temporary pier top supporting facility, accurately adjusting and aligning, performing temporary prestress tensioning and glue splicing, and after the splicing glue is cured, penetrating a permanent prestress steel beam to perform permanent prestress tensioning;
b2, repeating the step B1, and finishing the installation of the first midspan prefabricated section in the directions of two sides of the second middle pier;
b3, lifting the second midspan prefabricated sections on two sides of the first middle pier simultaneously, and performing symmetrical splicing, temporary and permanent prestress tensioning and prestressed pipe grouting on the second midspan prefabricated sections on two sides of the first middle pier;
b4, repeating the step B3, and symmetrically assembling 3 rd to n th midspan prefabricated sections in the directions of the two sides of the first middle pier in sequence;
b5, repeating the steps B3-B4, and symmetrically assembling 3 rd to n th midspan prefabricated segments in the directions of two sides of the second middle pier in sequence;
b6, repeating the steps B1-B5, and finishing the assembly of n mid-span prefabricated segments in the directions of the two sides of the third to the m middle piers.
Preferably, the construction method is characterized in that the side piers at two ends are a first side pier and a second side pier, the side spans at two ends are divided into an n +1 side span prefabricated section without a wet joint, an n +2 side span prefabricated section … … n + L side span prefabricated section, and the n + L side span prefabricated section is positioned at the top of the side pier; l is less than n;
the step D comprises the following steps:
d1, synchronously hoisting the n +1 th side span prefabricated sections of the first side pier and the second side pier, splicing by glue, tensioning the temporary prestress, penetrating the permanent prestress steel beam and tensioning the permanent prestress;
d2, hoisting the n + L side span prefabricated sections of the first side pier and the second side pier, and placing the prefabricated sections on corresponding temporary supporting seats beside the piers;
d3, hoisting the n +2 th side span prefabricated sections of the first side pier and the second side pier, splicing by glue, and tensioning temporary prestress;
d4, repeating the step D3, and completing the assembly of the n +3 th to n + L-1 th side span prefabricated sections;
d5, hoisting the n + L side span prefabricated sections at the tops of the first side pier and the second side pier, performing glue splicing, accurate alignment, tensioning temporary prestress, and performing permanent support positioning, anchor bolt hole grouting and adjusting layer grouting;
d6, mounting a full-bridge prestressed steel bundle, tensioning the prestressed steel bundle, grouting the prestressed pipeline, removing the pier top temporary consolidation facilities of each middle pier, and completing the conversion of the bridge system.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the arrangement of closure sections is reduced, so that the construction steps are reduced, the on-site concrete pouring workload is reduced, the construction efficiency is improved, and the construction process is accelerated;
2. the invention has few cast-in-place sections, improves the prefabrication rate of bridge sections and realizes the rapid implementation of the green construction of bridges.
Drawings
FIG. 1 is a schematic diagram of the structure and segment division of a side span wet seam-free segment prefabricated cantilever assembly continuous beam;
FIG. 2 is a construction schematic diagram of No. 0 section of a side span wet-seam-free section prefabricated cantilever assembly continuous beam installation pier top;
FIG. 3 is a construction schematic diagram of erecting No. 1 sections on pier T-shaped beam sections of side-span non-wet joint section prefabricated cantilever assembly continuous beams;
FIG. 4 is a construction schematic diagram of erecting No. 3 sections on pier T-shaped beam sections in a side span wet-seam-free section prefabricated cantilever assembly continuous beam;
FIG. 5 is a construction schematic diagram of erecting No. 4-No. 8 sections on a pier T-shaped beam section of a side span non-wet joint section prefabricated cantilever assembly continuous beam;
FIG. 6 is a construction schematic diagram of a mid-span closure section of a side-span non-wet joint section prefabricated cantilever assembly continuous beam;
FIG. 7 is a construction schematic diagram of No. 9 side span beam section of the side span non-wet joint section prefabricated cantilever assembly continuous beam;
FIG. 8 is a construction schematic diagram of No. 11 side span beam section of the side span non-wet joint section prefabricated cantilever assembly continuous beam;
FIG. 9 is a flow chart of the construction method of the present invention;
in the figure: 1 is the roof beam body, 2 is the pier stud, 3 is erection equipment, 4 is the other temporary support seat of middle pier mound, 5 is the other temporary support seat of side pier, 11 is the midspan, 12 is the side span, 13 is No. 0 sections of middle pier top, 21 is No. 1 side pier, 22 is No. 2 middle piers, 23 is No. 3 middle piers, 24 is No. 4 middle piers, 25 is No. 5 side piers, 111 is the prefabricated section of midspan, 112 is the wet seam of closure section, 121 is the prefabricated section of side span.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited thereto.
Examples
Referring to fig. 1, the prefabricated cantilever-assembled continuous beam with no wet joint at the side span constructed by the construction method of the present invention includes a beam body 1 and a pier stud 2, the beam body 1 is divided into a midspan 11 and side spans 12 at two ends, the number of the midspans 11 is not limited, and the midspans can be set as a plurality of midspans. Each midspan 11 is divided into a plurality of midspan prefabricated sections 111, the midspan prefabricated sections are assembled by adopting a section prefabricated assembly technology, and closure section wet joints 112 are arranged between every two adjacent midspans 11. The side span 12 is also divided into a plurality of side span prefabricated sections 121 and assembled by adopting a section prefabricated assembling technology, but wet seams are not arranged in the assembling of all the sections of the side span 12. The pier stud of bridge includes a plurality of middle piers and both ends side pier, No. 2 middle pier 22, No. 3 middle pier 23, No. 4 middle pier 24, No. 1 side pier 21 and No. 5 side pier 25 promptly.
In the invention, the serial number of each span section of the continuous beam starts from a middle pier top section, the serial numbers of pier top sections at the tops of No. 2 middle piers 22, No. 3 middle piers 23 and No. 4 middle piers 24 are all No. 0, and the serial numbers of other sections are sequentially arranged from the No. 0 section of the middle pier top to the front side and the rear side; and the erection equipment suitable for the site is arranged according to the segment weight for hoisting, transferring and storing on the site. In the embodiment, each midspan is divided into 16 midspan prefabricated sections, and the left side and the right side of each middle pier are respectively provided with 8 midspan prefabricated sections.
The invention is explained by taking a one-connection four-span bridge as an example, and as shown in fig. 9, the specific implementation steps are as follows:
s1, referring to fig. 2, installing middle pier top No. 0 segment 13 of each middle pier: installing a side pier side temporary supporting seat 5 and a middle pier side temporary supporting seat 4 by using the erection equipment 3, lifting the corresponding middle pier top section 0 from the beam storage area by using the erection equipment 3, and installing middle pier top section 0 of a middle pier 24, a middle pier 23 and a middle pier 22 No. 4; and a pier top temporary consolidation facility is arranged for each middle pier;
S2-S7, assembling the T-shaped beam sections of the middle piers, namely, sequentially and symmetrically assembling 2n middle-span prefabricated sections of each middle span from the directions of two sides of the No. 0 section of the top of the middle pier of each middle pier:
s2, simultaneously lifting the No. 1 midspan prefabricated section on the left side of the first middle pier and the No. 1' midspan prefabricated section on the right side of the first middle pier, placing the sections on temporary supporting facilities on the top of the pier, accurately adjusting and aligning, performing temporary prestress tensioning and glue splicing, and after the splicing glue is cured, penetrating a permanent prestress steel beam to perform permanent prestress tensioning;
referring to fig. 3, the erection equipment 3 simultaneously lifts the prefabricated section of the No. 1 midspan on the left side of the No. 3 middle pier 23 and the prefabricated section of the No. 1 midspan on the right side thereof, and places the prefabricated sections on the temporary support seat 4 beside the middle pier, and the accurate alignment adjustment is performed for glue splicing and temporary prestress tensioning.
S3, repeating the step S2, and finishing the installation of the No. 1 midspan prefabricated segment in the direction of the two sides of the second middle pier;
S4, lifting the No. 2 and No. 2 'midspan prefabricated sections on two sides of the first middle pier simultaneously, and performing symmetrical gluing, temporary and permanent prestress tensioning and prestressed pipeline grouting on the No. 2 and No. 2' midspan prefabricated sections on two sides of the first middle pier;
as shown in fig. 3, erection equipment 3 simultaneously lifts the No. 2 and No. 2' midspan prefabricated sections installed on both sides of No. 3 middle pier 23.
S5, repeating the step S4, and symmetrically assembling No. 3 to n midspan prefabricated sections in the directions of two sides of the first middle pier in sequence;
referring to fig. 4 and 5, the erection equipment 3 simultaneously lifts the No. 3 to n midspan prefabricated sections on two sides of the No. 3 middle pier 23, and symmetrically splices, temporarily and permanently stretches and presses prestressed pipes to the No. 3 to n midspan prefabricated sections on two sides of the No. 3 middle pier 23.
S6, repeating the steps S4-S5, and symmetrically assembling No. 3-n midspan prefabricated sections in the directions of two sides of the second middle pier in sequence;
referring to fig. 4 and 5, the prefabricated sections of No. 3-8 midspan in the directions of two sides of No. 4 middle pier 24 are symmetrically assembled in sequence.
And S7, repeating the steps S2-S6, and completing the assembly of the n midspan prefabricated segments in the directions of the two sides of the third to the m midspan piers.
The assembling process of each midspan prefabricated segment comprises glue assembling, temporary and permanent prestress tensioning and prestressed pipe grouting. The No. 1 to No. 8 midspan prefabricated sections on two sides of the No. 2 middle pier 22 are also placed, glued, temporarily and permanently prestressed and tensioned and prestressed pipeline grouting by adopting a symmetrical assembling method similar to the steps S2 to S7.
S8 ~ 10, midspan closure section construction, the midspan closure construction of this embodiment divide into 2 totally, and the prefabricated segmental closure of midspan of pier 24 section in pier 23 and the 4 # middle piers in 3 numbers promptly to and the midspan closure of pier 22 section in pier 23 and the 2 # middle piers in 3 numbers:
s8, referring to fig. 6, after 8 mid-span prefabricated sections of the "T-structure" of No. 3 middle pier 23 and No. 4 middle pier 24 are installed, constructing mid-span closure sections of No. 3 middle pier 23 and No. 4 middle pier 24, where the width of the mid-span closure section wet joint 112 is 1.0m, and the closure section wet joint 112 is cast-in-situ in a concrete wet joint form;
s9, referring to fig. 6, removing the temporary support seat 4 beside the middle pier of the No. 4 middle pier 24, transferring and installing to the No. 2 middle pier 22;
s10, repeating the steps S2-S7, and finishing the installation of the T-shaped midspan prefabricated segment of the No. 2 middle pier 22; repeating the step S8, and constructing the midspan closure section of the No. 3 middle pier 23 and the No. 2 middle pier 22 sections;
S11-S15, constructing the side span prefabricated sections of the side span 12, wherein wet joints are not arranged on three side span prefabricated sections of each side span 12, and the concrete construction steps are as follows:
s11, referring to FIG. 7, synchronously hoisting the prefabricated segment of the No. 9 side span of the No. 5 side span 25 and the No. 1 side span 21 by using two pieces of erection equipment 3, splicing by glue, tensioning temporary prestress, penetrating a permanent prestress steel beam and tensioning permanent prestress;
s12, hoisting the No. 11 side span prefabricated sections of the No. 5 side pier 25 and the No. 1 side pier 21 by two erection devices 3, and placing the sections on the corresponding pier-side temporary supporting seats 5;
s13, hoisting the No. 10 side span prefabricated sections of the No. 5 side pier 25 and the No. 1 side pier 21 by two pieces of erection equipment 3, splicing by glue, and tensioning temporary prestress;
s14, referring to FIG. 8, the crane lifts the prefabricated segment of No. 11 side span at the top of No. 5 side pier 25 and No. 1 side pier 21 pier, and after precise alignment and tensioning of temporary prestress by glue splicing, permanent support positioning, anchor bolt hole and adjustment layer grouting are carried out;
s15, installing a full-bridge prestressed steel bundle, tensioning the prestressed steel bundle, grouting the prestressed pipeline, removing pier top temporary consolidation facilities of the No. 2 middle pier 22, the No. 3 middle pier 23 and the No. 4 middle pier 24, and completing bridge system conversion.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (4)
1. The construction method is characterized in that the constructed side-span non-wet-joint section prefabricated cantilever assembled continuous beam comprises a beam body and a pier stud, the beam body is divided into a plurality of midspan and two end side spans, each midspan is divided into 2n midspan prefabricated sections, the left side and the right side of each middle pier are respectively provided with n midspan prefabricated sections, closure section wet joints are arranged between every two adjacent midspans, the side spans are divided into a plurality of side-span prefabricated sections, and the pier stud comprises a plurality of middle piers and two end side piers;
arranging pier top sections of each middle pier as middle pier top 0 sections, and sequentially numbering the n middle-span prefabricated sections of each middle span from the middle pier top 0 section to the left side and the right side respectively;
the construction method comprises the following steps:
A. installing a middle pier top No. 0 segment of each middle pier, and arranging a pier top temporary consolidation facility for each middle pier;
B. sequentially and symmetrically assembling 2n midspan prefabricated sections of each midspan from the directions of two sides of the section 0 at the top of the middle pier of each middle pier;
C. concrete pouring is carried out on the closure section wet joint between two adjacent midspans;
D. constructing the side span prefabricated sections of each side span, installing full-bridge prestressed steel bundles, tensioning the prestressed steel bundles, grouting the prestressed pipelines, removing pier top temporary consolidation facilities of each middle pier, and completing bridge system conversion;
the method comprises the following steps of (1) setting side piers at two ends as a first side pier and a second side pier, wherein the side spans at the two ends are divided into an n +1 side span prefabricated section and an n +2 side span prefabricated section … … n + L side span prefabricated section which are not provided with wet joints, and the n + L side span prefabricated section is positioned at the pier top of the side piers; l is less than n; the step D comprises the following steps:
d1, synchronously hoisting the n +1 th side span prefabricated sections of the first side pier and the second side pier, splicing by glue, tensioning the temporary prestress, penetrating the permanent prestress steel beam and tensioning the permanent prestress;
d2, hoisting the n + L side span prefabricated sections of the first side pier and the second side pier, and placing the prefabricated sections on corresponding temporary supporting seats beside the piers;
d3, hoisting the n +2 th side span prefabricated sections of the first side pier and the second side pier, splicing by glue, and tensioning temporary prestress;
d4, repeating the step D3, and completing the assembly of the n +3 th to n + L-1 th side span prefabricated sections;
d5, hoisting the n + L side span prefabricated sections at the tops of the first side pier and the second side pier, performing glue splicing, accurate alignment, tensioning temporary prestress, and performing permanent support positioning, anchor bolt hole grouting and adjusting layer grouting;
d6, mounting a full-bridge prestressed steel bundle, tensioning the prestressed steel bundle, grouting the prestressed pipeline, removing the pier top temporary consolidation facilities of each middle pier, and completing the conversion of the bridge system.
2. The construction method according to claim 1, wherein n midspan prefabricated sections of each midspan from the section 0 of the pier top of the pier are sequentially numbered as a first midspan prefabricated section and a second midspan prefabricated section … … nth midspan prefabricated section from the section 0 of the pier top to the left and the right; the plurality of middle piers are a first middle pier, a second middle pier … … m-th middle pier;
the step B comprises the following steps:
b1, simultaneously lifting the first midspan prefabricated section on the left side of the first middle pier and the first midspan prefabricated section on the right side of the first middle pier, placing the first midspan prefabricated section on a temporary pier top supporting facility, accurately adjusting and aligning, performing temporary prestress tensioning and glue splicing, and after the splicing glue is cured, penetrating a permanent prestress steel beam to perform permanent prestress tensioning;
b2, repeating the step B1, and finishing the installation of the first midspan prefabricated section in the directions of two sides of the second middle pier;
b3, lifting the second midspan prefabricated sections on two sides of the first middle pier simultaneously, and performing symmetrical splicing, temporary and permanent prestress tensioning and prestressed pipe grouting on the second midspan prefabricated sections on two sides of the first middle pier;
b4, repeating the step B3, and symmetrically assembling 3 rd to n th midspan prefabricated sections in the directions of the two sides of the first middle pier in sequence;
b5, repeating the steps B3-B4, and symmetrically assembling 3 rd to n th midspan prefabricated segments in the directions of two sides of the second middle pier in sequence;
b6, repeating the steps B1-B5, and finishing the assembly of n mid-span prefabricated segments in the directions of the two sides of the third to the m middle piers.
3. The construction method according to claim 2, wherein the assembling process of each midspan prefabricated section comprises gluing, temporary and permanent prestress tensioning and prestressed pipe grouting.
4. The construction method according to claim 2, wherein in the step B, the midspan prefabricated sections on both sides of each middle pier are lifted by using erection equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840426.0A CN110528403B (en) | 2019-09-06 | 2019-09-06 | Construction method for side-span non-wet joint section prefabricated cantilever assembly continuous beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910840426.0A CN110528403B (en) | 2019-09-06 | 2019-09-06 | Construction method for side-span non-wet joint section prefabricated cantilever assembly continuous beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110528403A CN110528403A (en) | 2019-12-03 |
| CN110528403B true CN110528403B (en) | 2021-08-13 |
Family
ID=68667305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910840426.0A Active CN110528403B (en) | 2019-09-06 | 2019-09-06 | Construction method for side-span non-wet joint section prefabricated cantilever assembly continuous beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110528403B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111472284A (en) * | 2020-04-30 | 2020-07-31 | 中建七局安装工程有限公司 | Assembling method for cantilever of prefabricated segmental beam portal crane of urban viaduct |
| CN112095438A (en) * | 2020-08-19 | 2020-12-18 | 中铁五局集团有限公司 | Continuous beam pipeline reinforcing bar friction loss testing method based on karst cave underground river environment |
| CN116356761A (en) * | 2023-04-14 | 2023-06-30 | 中水珠江规划勘测设计有限公司 | Segmental prefabricated aqueduct and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2295604C2 (en) * | 2005-06-03 | 2007-03-20 | Открытое акционерное общество по проектированию строительства мостов "Институт Гипростроймост" | Method for solid metal beam span structure assemblage |
| CN101684638A (en) * | 2008-09-23 | 2010-03-31 | 中交第三航务工程局有限公司 | Assembly method of section box girder |
| CN102425117A (en) * | 2011-12-26 | 2012-04-25 | 中铁大桥局股份有限公司 | Construction method for non-cantilever sections of sidespans of multiplex continuous beam or steel-constructed beam |
| CN103215898A (en) * | 2013-04-02 | 2013-07-24 | 天津市市政工程设计研究院 | Variable-cross-section concrete continuous bridge construction method |
| CN108149580A (en) * | 2017-12-29 | 2018-06-12 | 广州瀚阳工程咨询有限公司 | Based on cantilever balance assembly without bearing full-bridge precast segment method |
| CN108660902A (en) * | 2018-06-19 | 2018-10-16 | 中国铁路总公司 | A kind of Railway Prestressed Concrete continuous bridge of precast segment pin-connected panel |
-
2019
- 2019-09-06 CN CN201910840426.0A patent/CN110528403B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2295604C2 (en) * | 2005-06-03 | 2007-03-20 | Открытое акционерное общество по проектированию строительства мостов "Институт Гипростроймост" | Method for solid metal beam span structure assemblage |
| CN101684638A (en) * | 2008-09-23 | 2010-03-31 | 中交第三航务工程局有限公司 | Assembly method of section box girder |
| CN102425117A (en) * | 2011-12-26 | 2012-04-25 | 中铁大桥局股份有限公司 | Construction method for non-cantilever sections of sidespans of multiplex continuous beam or steel-constructed beam |
| CN103215898A (en) * | 2013-04-02 | 2013-07-24 | 天津市市政工程设计研究院 | Variable-cross-section concrete continuous bridge construction method |
| CN108149580A (en) * | 2017-12-29 | 2018-06-12 | 广州瀚阳工程咨询有限公司 | Based on cantilever balance assembly without bearing full-bridge precast segment method |
| CN108660902A (en) * | 2018-06-19 | 2018-10-16 | 中国铁路总公司 | A kind of Railway Prestressed Concrete continuous bridge of precast segment pin-connected panel |
Non-Patent Citations (1)
| Title |
|---|
| 连徐高铁最新消息;王文;《澎湃网》;20190805;第1-2页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110528403A (en) | 2019-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110528403B (en) | Construction method for side-span non-wet joint section prefabricated cantilever assembly continuous beam | |
| CN102230315B (en) | Prefabricated part and semi-prefabricated construction method for multistory building | |
| CN112030772A (en) | Rapid construction method of continuous rigid frame bridge | |
| CN113638304B (en) | Concrete beam type bridge hidden cover beam structure system and construction method thereof | |
| CN111877162A (en) | Assembling construction method for prefabricated segment box girder support of urban viaduct | |
| CN110670722A (en) | Implementation method of beam-column connecting node of fabricated building | |
| CN110093862B (en) | Three-working-face bridge girder erection machine capable of realizing longitudinal and transverse assembly and bent cap non-channel segment assembly construction method | |
| CN111877140A (en) | Connecting structure for segment prefabricated assembled pier combination and construction method | |
| CN110565506A (en) | Segmental prefabricated assembled bent cap and construction method thereof | |
| CN111893887B (en) | Construction method for prefabricated assembled corrugated steel web bridge stub | |
| CN211312164U (en) | Segment prefabricated assembled bent cap | |
| CN113152520A (en) | Large-size assembly type concrete box-shaped structure and assembly method thereof | |
| CN212103636U (en) | Hollow pier is assembled in prefabrication based on UHPC seam | |
| KR20160029277A (en) | Construction Method to Create Multi-span Continuity in PSC Bridges | |
| CN216108007U (en) | Concrete beam type bridge and cast-in-situ hidden cover beam thereof | |
| CN113356428B (en) | Prestress superposed integral floor system applied to fabricated building and construction method | |
| CN115125821A (en) | Longitudinally segmented steel concrete mixed prefabricated small box girder bridge and construction method | |
| CN212103638U (en) | A connection structure that is used for prefabricated pin-connected panel pier combination of segment | |
| CN115262412A (en) | Construction method of assembled steel mixed bridge | |
| CN210856909U (en) | Continuous beam assembled by prefabricated cantilever of side span non-wet joint segment | |
| CN210315235U (en) | Three-working-face bridge girder erection machine capable of realizing longitudinal and transverse assembly | |
| CN215593643U (en) | Non-wet joint span-by-span assembled prestressed concrete continuous beam bridge | |
| CN111472284A (en) | Assembling method for cantilever of prefabricated segmental beam portal crane of urban viaduct | |
| CN110886392A (en) | Laminated arch shell structure and construction method thereof | |
| Krishnan et al. | Cost analysis and benefits of construction of segmental bridges |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 510220 Guangzhou Tianhe District, Guangdong Province, 23 Sicheng Road, Hongtai Wisdom Valley Building 2 Floor 239A Applicant after: Hanyang International Engineering Consulting Co., Ltd Address before: 510220 Guangzhou Tianhe District, Guangdong Province, 23 Sicheng Road, Hongtai Wisdom Valley Building 2 Floor 239A Applicant before: Guangzhou Hanyang Engineering Consulting Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |