CN107524096A - A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method - Google Patents
A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method Download PDFInfo
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- CN107524096A CN107524096A CN201710954884.8A CN201710954884A CN107524096A CN 107524096 A CN107524096 A CN 107524096A CN 201710954884 A CN201710954884 A CN 201710954884A CN 107524096 A CN107524096 A CN 107524096A
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- 239000000725 suspension Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 190
- 239000010959 steel Substances 0.000 claims abstract description 190
- 238000010276 construction Methods 0.000 claims abstract description 10
- 230000035807 sensation Effects 0.000 claims description 13
- 229910000746 Structural steel Inorganic materials 0.000 claims description 6
- 238000005034 decoration Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 claims 1
- 238000007596 consolidation process Methods 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
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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
- E01D21/10—Cantilevered 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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Abstract
The present invention relates to a kind of continuous girders by suspension grouting 0# blocks falling body type steel pipe support, including be located on the cushion cap of bridge pier steel pipe space framework, be located at steel pipe space framework upper end outer transverse distribution beam and interior transverse distribution beam, more longitudinal distribution beams are provided with outer transverse distribution beam and interior transverse distribution beam, more longitudinal distribution beams are located under the bottom plate of box beam, and bottom die of box-beam support component is provided with more longitudinal distribution beams；Further respectively have more longerons on outer transverse distribution beam both ends, under the projection for the flange plate that more longerons are located at box beam, box beam side form and edge of a wing support component are provided with more longerons.The present invention also provides a kind of erection method of continuous girders by suspension grouting 0# block cast-in-place supports.Good integrity of the present invention, rigidity and stability are high, sedimentation phenomenon will not occur in cast-in-place construction, it can be ensured that beam body absolute altitude and concrete quality；Existing hanging basket's components can not only be utilized to greatest extent, and can also be used as continuous beam temporary consolidation.
Description
Technical field
The present invention relates to Longspan Bridge engineering, and in particular to a kind of continuous girders by suspension grouting 0# blocks cast-in-place support and its side of setting up
Method.
Background technology
In bridge construction, cast-in-situ continuous beam form of construction work is varied, and the continuous beam for crossing over extreme terrain uses more
Hanging basket cantilever mode is constructed, and 0# blocks support cast-in-place is a particularly important part again in hanging basket cantilever construction, it is necessary to first
Pour 0# blocks.0# blocks are typically poured using raft support method, after intensity reaches setting, then using 0# blocks as operating platform,
The machinery of installation thereon, Hanging Basket etc. are symmetrically poured or assembled No. 1 block, No. 2 blocks, etc..The quality of general 0# blocks is very big,
Concrete thickness is very thick, to bear big moment of flexure；Length is longer, to ensure that construction machinery is placed in enough spaces.For higher
Bridge, 0# blocks more using on pier shaft mounting bracket form carry out cast-in-place, and shorter bridge, can be entered using console
Row is cast-in-place, again can be according to bridge load size using full hall bowl buckle support or spiral steel pipe support shape during using console
Formula.When using spiral steel pipe support built, the position of spiral steel pipe is often possible to and continuous beam temporary support steel pipe phase
Conflict, causes support Design and constructional difficulties.Therefore, it is necessary to develop a kind of console mode spiral steel pipe support, and solves the side of setting up
Method, it is allowed to that cast-in-place support function can be met, and is not clashed with temporary support steel pipe.CN 103669225A disclose " one
Kind continuous beam 0# blocks supporting structure ".Bridge pier has two tube columns per side, and upright supports are on concrete bearing platform；Column top is set
A carling being connected with bridge pier is put, carling is welded to connect with pier shaft built-in fitting and column top being directly welded to connect；It is short
Crossbeam is set above longeron, and crossbeam length is suitable with bridge deck width, by the weldment fixed position on carling；Above crossbeam
Array framed bent is set, and framed bent inner opposite end is welded to connect with bridge pier by built-in fitting, and is relatively fixed with crossbeam；Put above framed bent
Put bottom die of box-beam.The supporting structure securely and reliably meets the force request of construction stage each operating mode；Work progress simple and fast, respectively
Key position stress is clear and definite, convenient to check.Certainly, this be art a kind of good try.
The content of the invention
It is an object of the invention to provide a kind of continuous girders by suspension grouting 0# block cast-in-place supports, its good integrity, rigidity and stability
Height, sedimentation phenomenon will not occur in cast-in-place construction, it can be ensured that beam body absolute altitude and concrete quality；Can not only be to greatest extent
Using existing hanging basket's components, and can also be used as continuous beam temporary consolidation.The present invention also provides a kind of continuous girders by suspension grouting
The erection method of 0# block cast-in-place supports.
A kind of continuous girders by suspension grouting 0# blocks falling body type steel pipe support of the present invention, including the steel being located on the cushion cap of bridge pier
Pipe space framework, the outer transverse distribution beam for being located at steel pipe space framework upper end and interior transverse distribution beam, in outer transverse distribution beam and
More longitudinal distribution beams are provided with above interior transverse distribution beam, more longitudinal distribution beams are located under the bottom plate of box beam, in institute
State and bottom die of box-beam support component is provided with above more longitudinal distribution beams, it is characterized in that：On the outer transverse distribution beam both ends
Face further respectively has more longerons, under the projection for the flange plate that the more longerons are located at box beam, on the more longerons
Face is provided with box beam side form and edge of a wing support component.
Further, the steel pipe space framework includes：
More it is equidistant it is vertical be located at it is in front more close to the cushion cap front of bridge pier and the horizontal steel pipe at back edge, the cushion cap
Root transverse direction steel pipe and more horizontal steel pipes of the cushion cap back are symmetrical two-by-two, and respectively under the bottom plate of box beam, and on
End flushes with box beam bottom plate；
Longitudinal steel pipe at the more equidistant good the right edges in the cushion cap left side for being located at close bridge pier, more of the cushion cap left side are vertical
It is symmetrical two-by-two to steel pipe and more longitudinal steel pipes on the right of the cushion cap, and respectively under the projection of the flange plate of box beam,
And upper end flushes with box beam bottom plate；
More shaped steel brackets pass through the upper end of the more horizontal steel pipes one by one along longitudinal direction respectively, form T-shape structure；It is described
Shaped steel bracket is welded and fixed close to one end of bridge pier with the steel plate being embedded in bridge pier, below the shaped steel bracket both sides respectively
It is provided with shaped steel diagonal brace；
Connect to form stable steel pipe solid frame by structural steel connecting member between described more horizontal steel pipes, more longitudinal steel pipes
Frame structure.
Further, two beam prestress wires are provided with every horizontal steel pipe, the lower end of the prestress wire leads to
Cross that P anchors are anchored in cushion cap concrete, upper end is penetrated in box beam inner cabinet；
Further, the outer transverse distribution beam be arranged on more shaped steel brackets away from bridge pier side above；The interior transverse direction point
More shaped steel brackets are arranged on above bridge pier side with beam；
More longitudinal distribution beams are equidistantly positioned above outer transverse distribution beam and interior transverse distribution beam；More longitudinal directions point
It is adjusted with the change slope part below beam by bearing beam and leveling voussoir.
Further, the bottom die of box-beam support component is made up of the lumps of wood and decoration panel template, and the bed die component is located at more
Above the distribution beam of root longitudinal direction, and it is close to the bottom plate of box beam.
Further, the box beam side form and edge of a wing support component are made up of support Hanging Basket side form and bowl buckle support, the bowl
Button support is ridden upon above the more longerons, the support Hanging Basket side form also ride upon above more longerons and with the box beam
Both sides connection.
Further, the horizontal steel pipe is identical with the diameter of longitudinal steel pipe, is spiral steel pipe.
A kind of building method of continuous girders by suspension grouting 0# blocks falling body type steel pipe support of the present invention, comprises the following steps：
The first step, pre-buried longitudinal steel pipe, horizontal steel pipe and prestress wire anchored end；
In bearing platform construction, the base steel plate of pre-buried horizontal steel pipe and the prestress wire anchored end of temporary support, and simultaneously
The base steel plate of pre-buried longitudinal steel pipe；
Second step, weld longitudinal steel pipe, horizontal steel pipe；
The six roots of sensation is welded on the pre-buried base steel plate of cushion cap and connects horizontal steel pipe and eight longitudinal steel pipes, wherein six roots of sensation transverse direction steel pipe is located at
Under the bottom plate of box beam, eight longitudinal steel pipes are located under the flange plate of box beam, and will face during installation in six roots of sensation transverse direction steel pipe
When the prestress wire that supports, be attached between horizontal steel pipe, longitudinal steel pipe with structural steel connecting member；
3rd step, mount type steel corbel；
Hole is cut in the upper-center of six roots of sensation transverse direction steel pipe, shaped steel bracket, one end of shaped steel bracket and bridge are crossed in hole
Pre-embedded steel slab is welded in pier, and diagonal brace shaped steel is welded below shaped steel bracket；
4th step, inside and outside transverse distribution beam is installed；
In more shaped steel brackets away from outer transverse distribution beam is set above bridge pier side, in more shaped steel brackets close to bridge pier one
Transverse distribution beam in being set above side, more longitudinal directions are equidistantly positioned above outer transverse distribution beam and interior transverse distribution beam
Distribution beam, the change slope part below more longitudinal distribution beams are adjusted by bearing beam and leveling voussoir；
5th step, lay bottom die of box-beam support component；
Bottom die of box-beam support component is laid on more longitudinal distribution beams, and is close to the bottom plate of box beam；The bottom die of box-beam
Support component is made up of the lumps of wood and decoration panel template；
6th step, longeron and box beam side form and edge of a wing support component are installed；
More longerons are also set respectively on the outer transverse distribution beam both ends, and more longerons are located at the flange plate of box beam
Under projection, box beam side form and edge of a wing support component are set on more longerons；Box beam side form and edge of a wing support component are by propping up
Support basket side form and bowl buckle support composition, bowl buckle support are ridden upon above more longerons, and the support Hanging Basket side form also rides upon
It is connected above more longerons and with the both sides of the box beam.
7th step, tensioning temporary support steel strand wires；After the completion of 0# blocks pour, tensioning temporary support in advance should on the inside of box beam
Power steel strand wires.
Beneficial effects of the present invention：
Due to being mounted with the prestress wire of temporary support in horizontal steel pipe, and run through box beam bottom plate, in the interior case of box beam
Indoor tensioning, form tension and compression combination with horizontal steel pipe, it is ensured that temporary support validity；Whole support installation operation letter
Just, horizontal steel pipe and longitudinal steel pipe basic role are on cushion cap, base fixed；Structure is concise, good integrity, rigidity and stability
Height, Hanging Basket material can be utilized to greatest extent, and in cast-in-place construction sedimentation phenomenon will not occur for bracket basis, it is ensured that beam body
Absolute altitude and concrete quality, while steel pipe support and can uses as continuous beam temporary consolidation.
Brief description of the drawings
Fig. 1 is the arrangement schematic diagram that horizontal steel pipe and longitudinal steel pipe are in cushion cap；
Fig. 2 is the lateral of the present invention（Along the length direction of bridge）Schematic diagram；
Fig. 3 is the transverse direction of the present invention（Along the width of bridge）Schematic diagram；
Fig. 4 is Fig. 3 A-A sectional drawings.
In figure：1- cushion caps, 2- bridge piers, 3- box beams, 30- bottom plates, 31- flange plates, 40- transverse direction steel pipes, 41- longitudinal directions steel pipe,
5- structural steel connecting members, 6- shaped steel brackets, 7- shaped steel diagonal braces, 8- bearing beams, 9- distribute crossbeam outside, and crossbeam, 11- longitudinal directions are distributed in 10-
Distribution beam, 12- longerons, 13- bowl buckle supports, 14- bottom die of box-beam support components, 15- support Hanging Basket side forms, 16- prestress steel twists
Line, 17- leveling voussoirs.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to a kind of continuous girders by suspension grouting 0# blocks falling body type steel pipe support shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, including it is located at bridge
Steel pipe space framework on the cushion cap 1 of pier 2, the outer transverse distribution beam 9 for being located at steel pipe space framework upper end and interior transverse distribution beam
10, more longitudinal distribution beams 11, more longitudinal distribution beams are provided with outer transverse distribution beam 9 and interior transverse distribution beam 10
Under the bottom plate 30 of box beam 3, bottom die of box-beam support component 14 is provided with more longitudinal distribution beams；Described outer
More longerons 12 are further respectively had above the both ends of transverse distribution beam 9, the more longerons are located at the throwing of the flange plate 31 of box beam 3
Under shadow, box beam side form and edge of a wing support component are provided with the more longerons 12.
The steel pipe space framework includes：More（This example is 6）It is equidistant to be located at vertically before the cushion cap 1 of bridge pier 2
Side and the horizontal steel pipe 40 at back edge, described more in front horizontal steel pipes 40 of cushion cap 1 and more horizontal strokes of the back of cushion cap 1
It is symmetrical two-by-two to steel pipe 40, and respectively under the bottom plate 30 of box beam 3, and upper end flushes with the bottom plate 30 of box beam 3；
More（This example is 8）Longitudinal steel pipe 41 at the equidistant good the right edge in the left side of cushion cap 1 for being located at close bridge pier 2, it is described
More longitudinal steel pipes 41 on the left side of cushion cap 1 and more longitudinal steel pipes 41 on described the right of cushion cap 1 are symmetrical two-by-two, and are located at case respectively
Under the projection of the flange plate 31 of beam 3, and upper end flushes with the bottom plate 30 of box beam 3；
More（This example is 6）Shaped steel bracket 6 is formed respectively along longitudinal direction one by one through the upper end of described more horizontal steel pipes 40
T-shape structure；The shaped steel bracket 6 is welded and fixed close to one end of bridge pier 2 with the steel plate being embedded in bridge pier, the shaped steel ox
Leg 6 is respectively arranged with shaped steel diagonal brace 7 below both sides；
Pass through the connection of structural steel connecting member 5 between described more horizontal steel pipes 40, more longitudinal steel pipes 41 and form stable steel pipe
Space frame structure.
Two beam prestress wires 16 are provided with every horizontal steel pipe 40, the lower end of the prestress wire passes through P
Anchor is anchored in the concrete of cushion cap 1, upper end is penetrated in the inner cabinet of box beam 3；Treat that 0# blocks carry out tensioning after the completion of pouring, with more preferable
Play temporary support effect.
P anchors belong to flat anchor, are non-stretching end anchorages.It is with one block of plain plate that it, which is constructed, processes several anchor cup aperture above, so
Steel strand wires are passed through into anchor cup aperture afterwards, locked with intermediate plate, then are anchored in concrete, the knot that the other end is extended to beyond concrete
Structure, finished after concreting after intensity reaches, tensioning is carried out in the other end.
The outer transverse distribution beam 9 be arranged on more shaped steel brackets 6 away from the side of bridge pier 2 above；The interior transverse direction point
More shaped steel brackets 6 are arranged on above the side of bridge pier 2 with beam 10；
More longitudinal distribution beams 11 are equidistantly positioned above outer transverse distribution beam 9 and interior transverse distribution beam 10；More
Change slope part below longitudinal distribution beam 11 is adjusted by bearing beam 8 and leveling voussoir 17.
The bottom die of box-beam support component 14 is made up of the lumps of wood and decoration panel template, and the bed die component 14 is located at more and indulged
It is close to above distribution beam 11, and with the bottom plate 30 of box beam 3.
The box beam side form and edge of a wing support component are made up of support Hanging Basket side form 15 and bowl buckle support 13, the bowl buckle branch
Frame 13 is ridden upon above the more longerons 12, the support Hanging Basket side form 15 also ride upon more longerons 12 above and with it is described
The both sides connection of box beam 3.
The horizontal steel pipe 40 is identical with the diameter of longitudinal steel pipe 41, is spiral steel pipe.
The horizontal steel pipe 40 can be as the case may be four, eight or ten, and longitudinal steel pipe 41 is according to tool
Body situation can be four, the six roots of sensation or ten, that is, form further embodiment.
A kind of building method of continuous girders by suspension grouting 0# blocks falling body type steel pipe support of the present invention, comprises the following steps（Referring to
Fig. 1, Fig. 2, Fig. 3 and Fig. 4）：
The first step, pre-buried longitudinal steel pipe, horizontal steel pipe and prestress wire anchored end；
When cushion cap 1 is constructed, the base steel plate of pre-buried horizontal steel pipe 40 and the anchored end of prestress wire 16 of temporary support, and
The base steel plate of pre-buried longitudinal steel pipe 41 simultaneously；
Second step, weld longitudinal steel pipe, horizontal steel pipe；
The six roots of sensation is welded on the pre-buried base steel plate of cushion cap 1 and connects horizontal steel pipe 40 and eight longitudinal steel pipes 41, wherein six roots of sensation transverse direction steel
Pipe 40 is located under the bottom plate 30 of box beam 3, and eight longitudinal steel pipes 41 are located under the flange plate 31 of box beam 3, and horizontal in the six roots of sensation
By the prestress wire 16 of temporary support when being installed in steel pipe 40, connected between horizontal steel pipe 40, longitudinal steel pipe 41 with shaped steel
Part 5 is attached；
3rd step, mount type steel corbel；
Cut hole in the upper-center of six roots of sensation transverse direction steel pipe 40, cross shaped steel bracket 6 in hole, one end of shaped steel bracket with
Pre-embedded steel slab is welded in bridge pier 2, and diagonal brace shaped steel 7 is welded below shaped steel bracket；
4th step, inside and outside transverse distribution beam is installed；
In more shaped steel brackets 6 away from outer transverse distribution beam 9 is set above the side of bridge pier 2, in more shaped steel brackets 6 close to bridge
Transverse distribution beam 10 in being set above the side of pier 2, it is equidistant above outer transverse distribution beam 9 and interior transverse distribution beam 10 to set
Put more longitudinal distribution beams 11, the change slope part below more longitudinal distribution beams 11 is adjusted by bearing beam 8 and leveling voussoir 17
It is whole；
5th step, lay bottom die of box-beam support component；
Bottom die of box-beam support component 14 is laid on more longitudinal distribution beams 11, and is close to the bottom plate 30 of box beam 3；The case
Beam bottom board support component 14 is made up of the lumps of wood and decoration panel template；
6th step, longeron and box beam side form and edge of a wing support component are installed；
More longerons 12 are also set respectively on the outer both ends of transverse distribution beam 9, more longerons are located at the edge of a wing of box beam 3
Under the projection of plate 31, box beam side form and edge of a wing support component are set on more longerons 12；Box beam side form and edge of a wing support
Component is made up of support Hanging Basket side form 15 and bowl buckle support 13, and bowl buckle support 13 is ridden upon above more longerons 12, the support
Hanging Basket side form 15 also rides upon more longerons 12 above and is connected with the both sides of the box beam 3.
7th step, tensioning temporary support steel strand wires；It is pre- in the inner side tensioning temporary support of box beam 3 after the completion of 0# blocks pour
Prestress steel strand 16.
Claims (8)
1. a kind of continuous girders by suspension grouting 0# blocks falling body type steel pipe support, including it is located at bridge pier（2）Cushion cap（1）On steel pipe solid frame
Frame, the outer transverse distribution beam for being located at steel pipe space framework upper end（9）With interior transverse distribution beam（10）, in outer transverse distribution beam（9）
With interior transverse distribution beam（10）More longitudinal distribution beams are provided with above（11）, more longitudinal distribution beams are located at box beam（3）'s
Bottom plate（30）Under, in more longitudinal distribution beams（11）Bottom die of box-beam support component is provided with above（14）, it is characterized in that：
The outer transverse distribution beam（9）More longerons are further respectively had above both ends（12）, the more longerons are located at box beam（3）'s
Flange plate（31）Projection under, in the more longerons（12）Box beam side form and edge of a wing support component are provided with above.
2. continuous girders by suspension grouting 0# blocks falling body type steel pipe support according to claim 1, it is characterized in that the steel pipe solid frame
Frame includes：
More（6）It is equidistant to be located at vertically close to bridge pier（2）Cushion cap（1）Front and the horizontal steel pipe at back edge（40）,
The cushion cap（1）More horizontal steel pipes in front（40）With the cushion cap（1）More horizontal steel pipes of back（40）It is symmetrical two-by-two,
And it is located at box beam respectively（3）Bottom plate（30）Under, and upper end is and box beam（3）Bottom plate（30）Flush；
More（8）It is equidistant to be located at close to bridge pier（2）Cushion cap（1）Longitudinal steel pipe at the good the right edge in the left side（41）, it is described
Cushion cap（1）More longitudinal steel pipes on the left side（41）With the cushion cap（1）More longitudinal steel pipes on the right（41）It is symmetrical two-by-two, and point
Wei Yu not box beam（3）Flange plate（31）Projection under, and upper end is and box beam（3）Bottom plate（30）Flush；
More shaped steel brackets（6）The more horizontal steel pipes are passed through one by one along longitudinal direction respectively（40）Upper end, formed T-shape knot
Structure；The shaped steel bracket（6）Close to bridge pier（2）One end be welded and fixed with the steel plate being embedded in bridge pier, the shaped steel bracket
（6）Shaped steel diagonal brace is respectively arranged with below both sides（7）；
More described horizontal steel pipes（40）, more longitudinal steel pipes（41）Between pass through structural steel connecting member（5）Connection forms stable
Steel pipe space frame structure.
3. filling continuous beam 0# block falling body type steel pipe supports according to claim 2, it is characterized in that：In every horizontal steel pipe
（40）Inside it is provided with two beam prestress wires（16）, the lower end of the prestress wire is anchored into cushion cap by P anchors（1）Coagulation
In soil, upper end penetrate box beam（3）In inner cabinet.
4. filling continuous beam 0# block falling body type steel pipe supports according to claim 1 or 2, it is characterized in that：
The outer transverse distribution beam（9）It is arranged on more shaped steel brackets（6）Away from bridge pier（2）Above side；
The interior transverse distribution beam（10）It is arranged on more shaped steel brackets（6）Close to bridge pier（2）Above side；
More longitudinal distribution beams（11）It is equidistantly positioned in outer transverse distribution beam（9）With interior transverse distribution beam（10）It is upper
Face；More longitudinal distribution beams（11）Following change slope part passes through bearing beam（8）And leveling voussoir（17）It is adjusted.
5. filling continuous beam 0# block falling body type steel pipe supports according to claim 1 or 2, it is characterized in that：The bottom die of box-beam
Support component（14）It is made up of the lumps of wood and decoration panel template, the bed die component（14）It is located at more longitudinal distribution beams（11）On
Face, and and box beam（3）Bottom plate（30）It is close to.
6. filling continuous beam 0# block falling body type steel pipe supports according to claim 1 or 2, it is characterized in that：The box beam side form
And edge of a wing support component is by support Hanging Basket side form（15）With bowl buckle support（13）Composition, the bowl buckle support（13）Ride upon described
More longerons（12）Above, the support Hanging Basket side form（15）Also more longerons are ridden upon（12）Above and with the box beam（3）
Both sides connection.
7. filling continuous beam 0# block falling body type steel pipe supports according to claim 1 or 2, it is characterized in that：The horizontal steel pipe
（40）With longitudinal steel pipe（41）Diameter it is identical, be spiral steel pipe.
8. a kind of building method of continuous girders by suspension grouting 0# blocks falling body type steel pipe support, comprises the following steps：
The first step, pre-buried longitudinal steel pipe, horizontal steel pipe and prestress wire anchored end；
In cushion cap（1）During construction, pre-buried horizontal steel pipe（40）Base steel plate and temporary support prestress wire（16）Anchor
Fixed end, and simultaneously pre-buried longitudinal steel pipe（41）Base steel plate；
Second step, weld longitudinal steel pipe, horizontal steel pipe；
In cushion cap（1）The six roots of sensation is welded on pre-buried base steel plate and connects horizontal steel pipe（40）With eight longitudinal steel pipes（41）, the wherein six roots of sensation
Horizontal steel pipe（40）Positioned at box beam（3）Bottom plate（30）Under, eight longitudinal steel pipes（41）Positioned at box beam（3）Flange plate（31）
Under, and in six roots of sensation transverse direction steel pipe（40）By the prestress wire of temporary support during interior installation（16）, horizontal steel pipe（40）, it is vertical
To steel pipe（41）Between use structural steel connecting member（5）It is attached；
3rd step, mount type steel corbel；
In six roots of sensation transverse direction steel pipe（40）Upper-center cutting hole, shaped steel bracket is crossed in hole（6）, the one of shaped steel bracket
End and bridge pier（2）Middle pre-embedded steel slab is welded, and diagonal brace shaped steel is welded below shaped steel bracket（7）；
4th step, inside and outside transverse distribution beam is installed；
In more shaped steel brackets（6）Away from bridge pier（2）Outer transverse distribution beam is set above side（9）, in more shaped steel brackets
（6）Close to bridge pier（2）Transverse distribution beam in being set above side（10）, in outer transverse distribution beam（9）With interior transverse distribution beam
（10）Above be equidistantly positioned more longitudinal distribution beams（11）, more longitudinal distribution beams（11）Following change slope part passes through pad
Beam（8）And leveling voussoir（17）It is adjusted；
5th step, lay bottom die of box-beam support component；
In more longitudinal distribution beams（11）Bottom die of box-beam support component is laid above（14）, and and box beam（3）Bottom plate（30）Tightly
Patch；The bottom die of box-beam support component（14）It is made up of the lumps of wood and decoration panel template；
6th step, longeron and box beam side form and edge of a wing support component are installed；
In the outer transverse distribution beam（9）More longerons are also set respectively above both ends（12）, more longerons are located at box beam（3）
Flange plate（31）Projection under, in more longerons（12）Box beam side form and edge of a wing support component are set above；Box beam side form
And edge of a wing support component is by support Hanging Basket side form（15）With bowl buckle support（13）Composition, bowl buckle support（13）Ride upon more longerons
（12）Above, the support Hanging Basket side form（15）Also more longerons are ridden upon（12）Above and with the box beam（3）Both sides connect
Connect；
7th step, tensioning temporary support steel strand wires；After the completion of 0# blocks pour, in box beam（3）Tensioning temporary support in inner side in advance should
Power steel strand wires（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954884.8A CN107524096A (en) | 2017-10-13 | 2017-10-13 | A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954884.8A CN107524096A (en) | 2017-10-13 | 2017-10-13 | A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107524096A true CN107524096A (en) | 2017-12-29 |
Family
ID=60685134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710954884.8A Pending CN107524096A (en) | 2017-10-13 | 2017-10-13 | A kind of continuous girders by suspension grouting 0# blocks cast-in-place support and erection method |
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|---|---|
| CN (1) | CN107524096A (en) |
Cited By (5)
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| CN108589551A (en) * | 2018-06-07 | 2018-09-28 | 中交路桥华南工程有限公司 | Pier stud 0# beam section cast-in-place supports |
| CN109338896A (en) * | 2018-11-28 | 2019-02-15 | 中国铁建大桥工程局集团有限公司 | A kind of wide cut concrete PK box beam bracket system construction method |
| CN114382018A (en) * | 2022-01-20 | 2022-04-22 | 浙江交工集团股份有限公司 | Cast-in-place box girder 0# block and construction method thereof |
| CN114438895A (en) * | 2022-02-22 | 2022-05-06 | 中铁二十一局集团路桥工程有限公司 | Support structure for segment prefabricated 0# block prestressed box girder and construction method |
| CN114872169A (en) * | 2022-04-21 | 2022-08-09 | 中建八局第二建设有限公司 | Leveling assembly and prefabricated track beam template manufacturing device |
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| CN108589551A (en) * | 2018-06-07 | 2018-09-28 | 中交路桥华南工程有限公司 | Pier stud 0# beam section cast-in-place supports |
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| CN114438895A (en) * | 2022-02-22 | 2022-05-06 | 中铁二十一局集团路桥工程有限公司 | Support structure for segment prefabricated 0# block prestressed box girder and construction method |
| CN114872169A (en) * | 2022-04-21 | 2022-08-09 | 中建八局第二建设有限公司 | Leveling assembly and prefabricated track beam template manufacturing device |
| CN114872169B (en) * | 2022-04-21 | 2023-11-14 | 中建八局第二建设有限公司 | Leveling assembly and prefabricated track beam template manufacturing device |
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Application publication date: 20171229 |