CN106400692A - Construction method for stand column and cover beam assembled structure - Google Patents
Construction method for stand column and cover beam assembled structure Download PDFInfo
- Publication number
- CN106400692A CN106400692A CN201610970459.3A CN201610970459A CN106400692A CN 106400692 A CN106400692 A CN 106400692A CN 201610970459 A CN201610970459 A CN 201610970459A CN 106400692 A CN106400692 A CN 106400692A
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- Prior art keywords
- bent cap
- column
- construction method
- reinforcing bar
- cover beam
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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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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 a construction method for a stand column and cover beam assembled structure. The construction method includes the following steps that S1, a stand column is prefabricated, rebars are embedded in the stand column in advance; a cover beam is prefabricated, metal bellows are reserved in the cover beam, and a mortar pressing channel is formed in the cover beam; and the spliced face of the stand column and the cover beam is cleaned and measured; S2, pre-assembling is performed, hole channels of the metal bellows are aligned with the rebars to be sleeved in, and after the perpendicularity and the elevation of the cover beam are adjusted, the cover beam is lifted up; and S3, high-strength mortar is laid in a splicing seam between the stand column and the cover beam, then the cover beam drops down, and after the high-strength mortar reaches the strength requirement, the high-strength mortar is pressed in from the mortar pressing channel till mortar pressing ends. According to the construction method, a traditional bridge building manner is changed, no supports and no formworks exist on the construction site, the on-site construction period is shortened, the labor intensity of workers is relieved, and the requirement for the construction site is lowered; the work procedures of on-site support foundation treatment and support formwork erecting are omitted, and the economical efficiency is high; and meanwhile the negative effects on the ambient environment are reduced.
Description
Technical field
The present invention relates to bridge structure construction field, particularly to the construction method of a kind of column and bent cap splicing structure.
Background technology
At present, bridge coping and the connection of column generally adopt Support Method cast-in-place, that is, set up support and template, on cushion cap
Colligation column reinforcing bar, after completing the cast of column concrete and maintenance, rotary ligating cover beam steel, then carry out the cast of bent cap concrete,
A general construction period at least 2～3 weeks.
Its drawback is long construction period, and field procedure is many, high to site requirements, and strutting system is high to fundamental importance, peace
Full property is poor, seriously polluted, big on surrounding enviroment impact.
Content of the invention
The present invention provides the construction method of a kind of column and bent cap splicing structure, to solve above-mentioned technical problem.
For solving above-mentioned technical problem, the present invention provides the construction method of a kind of column and bent cap splicing structure, including such as
Lower step：
S1：Prefabricated stand column, and embedded bar in described column, install slurry check ring on described reinforcing bar；Prefabricated bent cap, and
Reserve metal bellowss in described bent cap, mud jacking passage, the pulp inlet of described mud jacking passage are set in described bent cap simultaneously
Connect with the two ends of described metal bellowss respectively with grout outlet；Clean and measure the Mosaic face of described column and described bent cap；
S2：Preassembling, the duct of described metal bellowss is directed at described reinforcing bar and is inserted in, and adjusts perpendicularity and the mark of bent cap
Height, after the completion of regulation, lifts described bent cap；
S3：In splicing seams between described column and described bent cap, then described bent cap is fallen by laying high-strength mortar,
After material at described splicing seams reaches intensity requirement, it is pressed into high-strength mortar from described mud jacking passage, treats all described metal waves
After stricture of vagina pipe mud jacking terminates, assembling construction completes.
It is preferred that the bottom of every described metal bellowss is connected with described pulp inlet, the top of described metal bellowss
Connect with described grout outlet, in step S3 when described mud jacking passage press-in high-strength mortar, be pressed into high-strength sand from described pulp inlet
Slurry, up to described grout outlet pulp, this metal bellowss mud jacking terminates.
It is preferred that the splicing seams height between described column and described bent cap is 20～30mm, the top surface four of described column
It is respectively equipped with rubber cushion blocks, the section of described rubber cushion blocks is the square of 100 × 100mm, the thickness of described rubber cushion blocks at angle
Spend for 20～31mm, the top edge of described column is enclosed and is provided with block pulp template, lays described high-strength sand in described block pulp template
Slurry, this described high-strength mortar label should be higher than that more than described column and one grade of bent cap label high level, and paving slurry thickness is high
Go out described more than rubber cushion blocks 5mm, by adjusting the perpendicularity of the bent cap described in thickness adjusted of the rubber cushion blocks on described column
And absolute altitude.
It is preferred that the splicing seams height between described column and described bent cap is 2～5mm, the top surface corner of described column
Place is respectively equipped with pad, and the section of described pad is the square of 100 × 100mm, and the thickness of described pad is 2～5mm, described
The top edge of column is enclosed and is provided with block pulp template, lays described epoxy piece glue in described block pulp template, and paving glue thickness exceeds
Described more than pad 2mm, by adjusting the perpendicularity of bent cap and the absolute altitude described in thickness adjusted of the pad on described column.
It is preferred that in step S3, after laying the splicing seams between described column and described bent cap, described bent cap is dropped down onto tune
On the rubber cushion blocks having saved or pad.
It is preferred that described reinforcing bar with diameter greater than equal to 22mm.
It is preferred that a diameter of 22mm, 25mm, 28mm, 32mm, 36mm, 40mm of described reinforcing bar or more.
It is preferred that described reinforcing bar stretches out described column, the length of extension is 20～50 times of the diameter of described reinforcing bar.
It is preferred that the wall thickness of described metal bellowss is 0.4～2mm, the high 3.1～5mm of rib, embedded depth is described reinforcing bar
20～50 times of diameter, the big 20～40mm of diameter of the more described reinforcing bar of internal diameter.
It is preferred that described slurry check ring is equipped with every described reinforcing bar, the more described wavy metal of diameter of described slurry check ring
The big 1cm of nozzle diameter of pipe.
Compared with prior art, the column that the present invention provides is had the advantage that with the construction method of bent cap splicing structure：
1. the present invention changes traditional bridge construction mode, job site no support, no template, a large amount of field cast-in-place quantities
Switch to prefabricated in factory complete, thus be substantially shorter the live duration, reduce construction site；Eliminate live bracket basis to process
With the operation setting up rack template, overall economics are good；
2. decrease work on the spot amount, alleviate the labor intensity of field worker it is ensured that the safety work of workmen；
3. adopt metal bellowss and bar connecting, material price is cheap, it is possible to decrease construction costs；
4. when can reduce construction, the factor such as noise, dust, light, sewage is to surrounding enviroment and negative to traffic generation
Impact.
5., due to being that plant produced makes, component quality is good, it is advantageously ensured that the quality of component and dimensional accuracy, and to the greatest extent may be used
Employing mechanized construction more than energy；Due to a period of time will be deposited, therefore have certain age by after element precast when mounted,
Concrete shrinkage, the deformation causing of creeping can be reduced.
Brief description
Fig. 1 is structural representation with bent cap after assembled for one embodiment of the invention central post；
Fig. 2 is the structural representation at one embodiment of the invention central post and bent cap splicing seams；
Fig. 3 is the sectional view at 1-1 in Fig. 2；
Fig. 4 is the structural representation of one embodiment of the invention central post；
Fig. 5 a to Fig. 5 c is followed successively by the construction procedure schematic diagram of construction method in one embodiment of the invention.
In figure：10- column, 11- reinforcing bar, 20- bent cap, 21- metal bellowss, 22- mud jacking passage, 23- pulp inlet, 24-
Grout outlet, 30- cushion cap, 40- splicing seams, 41- rubber cushion blocks or pad, 42- slurry check ring, 43- block pulp template.
Specific embodiment
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.It should be noted that, accompanying drawing of the present invention is all in the form of simplifying and all using non-essence
Accurate ratio, only in order to purpose that is convenient, lucidly aiding in illustrating the embodiment of the present invention.
The construction method of column and bent cap splicing structure that the present invention provides, as shown in Fig. 1 to Fig. 5 c, for column 10 with
The splicing of bent cap 20, specifically includes following steps：
S1：Prefabricated stand column 10, as shown in Figure 5 a, and embedded bar 11 in described column 10, described reinforcing bar 11 is pacified
Dress slurry check ring 42；Prefabricated bent cap 20, and (grouting dress inserted by metal bellowss 21 to reserve metal bellowss 21 in described bent cap 20
Put), the mud jacking passage 22 in described bent cap 20 is set simultaneously, the pulp inlet 23 of described mud jacking passage 22 and grout outlet 24 respectively with
The two ends connection of described metal bellowss 21；Clean and measure the Mosaic face of described column 10 and described bent cap 20 it is ensured that column
10 top surfaces and the flatness of bent cap 20 bottom surface；
S2：Preassembling, the duct of described metal bellowss 21 is directed at described reinforcing bar 11 and is inserted in, adjust the vertical of bent cap 20
Degree and absolute altitude, as shown in Figure 5 b, after the completion of regulation, lift described bent cap 20, carry out the construction of splicing seams 40；
S3：Described column 10 is laid using seat slurry processes (corresponding rubber cushion blocks) or epoxy piece gemel connection method (corresponding pad)
Splicing seams 40 and described bent cap 20 between, after the completion of paving slurry/paving glue, described bent cap 20 are fallen, specifically, by described bent cap
20 drop down onto on the rubber cushion blocks regulating or pad 41, after the material at described splicing seams 40 reaches intensity requirement, to described pressure
Slurry passage 22 press-in is not less than the high-strength mortar of M80, and after all described metal bellowss 21 mud jacking terminates, assembling construction is complete
Become.
The present invention proposes a kind of and traditional diverse construction of assembling method, can shorten construction period, and
The impact to surrounding enviroment can be reduced, and can preferably control concrete casting quality, and the relatively low construction technology of cost, suitable
All there is higher promotional value with all many-sides such as property, economy, crudy, construction period.
It is preferred that asking emphasis with reference to Fig. 5 c, the bottom of every described metal bellowss 21 is connected with described pulp inlet 23, institute
The top stating metal bellowss 21 is connected with described grout outlet 24, is pressed into high-strength mortar from described mud jacking passage 22 in step S3
When, it is pressed into high-strength mortar from described pulp inlet 23, up to described grout outlet 24 pulp, this metal bellowss 21 mud jacking terminates, from
And so that high-strength mortar is flowed from bottom to top using pressure, improve mud jacking intensity.
It is preferred that the height of required splicing seams 40 can be passed through in the present invention, choose corresponding paver, and choose correspondence
Rubber cushion blocks or pad 41, specifically, in an embodiment, splicing seams between described column 10 and described bent cap 20 40 are high
To spend for 20～30mm, at the top surface corner of described column 10, be respectively equipped with rubber cushion blocks, the section of described rubber cushion blocks is 100 ×
The square of 100mm, alternatively other sizes and shape, the thickness of described rubber cushion blocks is 20～31mm, described column 10
Top edge is enclosed and is provided with block pulp template 43, lays described high-strength mortar, this described high-strength mortar mark in described block pulp template 43
Number should be higher than that more than described column 10 and one grade of label high level both bent cap 20, paving slurry thickness exceeds described rubber cushion blocks
More than 5mm, by adjusting the perpendicularity of bent cap 20 and the absolute altitude described in thickness adjusted of the rubber cushion blocks on described column 10, specifically
Ground, can be utilized the thickness of the regulating guarantee splicing seams 40 to described rubber cushion blocks and adjusts the positional precision of bent cap 20.
In another embodiment, splicing seams 40 height between described column 10 and described bent cap 20 is 2～5mm, described
It is respectively equipped with pad, the section of described pad is the square of 100 × 100mm, is alternatively other at the top surface corner of column 10
Size and dimension, the thickness of described pad is 2～5mm, and the top edge of described column 10 is enclosed and is provided with block pulp template 43, described
Described epoxy piece glue is laid, paving glue thickness exceeds described more than pad 2mm, by adjusting described column 10 in block pulp template 43
On the perpendicularity of bent cap 20 and absolute altitude described in the thickness adjusted of pad, specifically, regulating guarantee to described pad can be utilized
The thickness of splicing seams 40 simultaneously adjusts the positional precision of bent cap 20.
It is preferred that asking emphasis with reference to Fig. 3 and Fig. 4, the column 10 in the present invention can be may also be employed cast-in-place using prefabrication
Construction, column 10 section according to design requirements, can be any form, depending on bar diameter ds calculates according to design, typically
Not less than 22mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm or more generally can be adopted；Reinforcing bar 11 can using HRB500 and
HRB400；The length that described reinforcing bar 11 stretches out the part of described column 10 is 20～50 times of described bar diameter ds, that is, described
The length that reinforcing bar 11 stretches out the part of described column 10 is 20ds～50ds.
It is preferred that the bent cap 20 in the present invention adopts prefabrication, can be any form according to design needs, described gold
The wall thickness belonging to corrugated tube 21 is 0.4～2mm, the high 3.1～5mm of rib, and embedded depth is 20～50 times of the diameter of described reinforcing bar 11,
I.e. embedded depth is 50ds～20ds, the big 20～40mm of diameter of the more described reinforcing bar of internal diameter 11, and that is, internal diameter is that column 10 reinforcing bar is straight
Footpath ds+20mm～40mm.
It is preferred that asking emphasis with reference to Fig. 4, every described reinforcing bar 11 is equipped with described slurry check ring 42, described slurry check ring 42
It is sheathed on described reinforcing bar 11, and fit with the Mosaic face of described column 10, the more described metal wave of diameter of described slurry check ring 42
The big 1cm of nozzle diameter of stricture of vagina pipe 21, during preventing from irrigating high-strength mortar into metal bellowss 21, high-strength mortar is from mouth of pipe stream
Go out.
In sum, the column that the present invention provides and the construction method of bent cap splicing structure, comprise the steps：S1：In advance
Column 10 processed, as shown in Figure 5 a, and embedded bar 11 in described column 10, slurry check ring 42 is installed on described reinforcing bar 11；In advance
Bent cap 20 processed, and reserve metal bellowss 21 in described bent cap 20, the mud jacking passage 22 in described bent cap 20, institute are set simultaneously
The pulp inlet 23 stating mud jacking passage 22 is connected with the two ends of described metal bellowss 21 respectively with grout outlet 24；Clean and measure institute
State the Mosaic face of column 10 and described bent cap 20 it is ensured that the flatness of column 10 top surface and bent cap 20 bottom surface；S2：Preassembling, will
The duct of described metal bellowss 21 is directed at described reinforcing bar 11 and is inserted in, and adjusts perpendicularity and the absolute altitude of bent cap 20, as shown in Figure 5 b,
After the completion of regulation, lift described bent cap 20, carry out the construction of splicing seams 40；S3：Lay described column 10 and described bent cap 20 it
Between splicing seams 40, after the completion of paving slurry/paving glue, described bent cap 20 is fallen, specifically, described bent cap 20 is dropped down onto and regulates
On rubber cushion blocks or pad 41, after the material at described splicing seams 40 reaches intensity requirement, it is pressed into height to described mud jacking passage 22
Strength mortar, after all described metal bellowss 21 mud jacking terminates, assembling construction completes.The present invention changes traditional bridge construction side
Formula, job site no support, no template, substantially reduce the live duration, alleviate labor strength, reduce to construction field
The requirement on ground；Eliminate the operation that live bracket basis process and set up rack template, good economy performance；Decrease to surrounding simultaneously
The negative effect of environment.
In addition, construction method of the present invention is applicable not only to prefabricated stand column 10 being connected with bent cap 20, it is also applied for cast-in-place column
10 with the connection of bent cap 20.
Obviously, those skilled in the art can carry out the various changes and modification spirit without deviating from the present invention to invention
And scope.So, if these modifications of the present invention and modification belong to the claims in the present invention and its equivalent technologies scope it
Interior, then the present invention is also intended to including these changes and modification.
Claims (10)
1. a kind of column and the construction method of bent cap splicing structure are it is characterised in that comprise the steps：
S1：Prefabricated stand column (10), and embedded bar (11) in described column (10), in described reinforcing bar (11) upper installation slurry check ring
(42)；Prefabricated bent cap (20), and reserve metal bellowss (21) in described bent cap (20), set in described bent cap (20) simultaneously
Put mud jacking passage (22), the pulp inlet (23) of described mud jacking passage (22) and grout outlet (24) respectively with described metal bellowss
(21) two ends connection；Clean and measure the Mosaic face of described column (10) and described bent cap (20)；
S2：Preassembling, the duct of described metal bellowss (21) is directed at described reinforcing bar (11) and is inserted in, and adjusts hanging down of bent cap (20)
Straight degree and absolute altitude, after the completion of regulation, lift described bent cap (20)；
S3：Laying high-strength mortar in splicing seams (40) between described column (10) and described bent cap (20), then will be described
Bent cap (20) falls, and after the material at described splicing seams (40) place reaches intensity requirement, is pressed into high-strength from described mud jacking passage (22)
Mortar, after all described metal bellowss (21) mud jacking terminates, assembling construction completes.
2. construction method as claimed in claim 1 it is characterised in that the bottom of every described metal bellows (21) with described
Pulp inlet (23) connects, and the top of described metal bellowss (21) is connected with described grout outlet (24), from described pressure in step S3
During slurry passage (22) press-in high-strength mortar, it is pressed into high-strength mortar from described pulp inlet (23), until described grout outlet (24) pulp,
This metal bellows (21) mud jacking terminates.
3. construction method as claimed in claim 1 is it is characterised in that spelling between described column (10) and described bent cap (20)
Seam (40) is highly 20～30mm, is respectively equipped with rubber cushion blocks, described rubber cushion blocks at the top surface corner of described column (10)
Section be 100 × 100mm square, the thickness of described rubber cushion blocks is 20～31mm, the top surface side of described column (10)
Edge encloses and is provided with block pulp template (43), lays described high-strength mortar, this described high-strength mortar label in described block pulp template (43)
Should be higher than that more than described column (10) and both one grades of label high level of bent cap (20), paving slurry thickness exceeds described rubber cushion blocks
More than 5mm, by perpendicularity and the absolute altitude of the bent cap described in thickness adjusted (20) of the rubber cushion blocks in the described column of regulation (10).
4. construction method as claimed in claim 1 is it is characterised in that spelling between described column (10) and described bent cap (20)
Seam (40) is highly 2～5mm, is respectively equipped with pad, the section of described pad is 100 at the top surface corner of described column (10)
The square of × 100mm, the thickness of described pad is 2～5mm, and the top edge of described column (10) is enclosed and is provided with block pulp template
(43) in described block pulp template (43), lay described epoxy piece glue, paving glue thickness exceeds described more than pad 2mm, passes through
Adjust the perpendicularity of bent cap described in the thickness adjusted of pad (20) and the absolute altitude on described column (10).
5. the construction method as described in claim 3 or 4 is it is characterised in that in step S3, lay described column (10) with described
After splicing seams (40) between bent cap (20), described bent cap (20) is dropped down onto on the rubber cushion blocks regulating or pad (41).
6. construction method as claimed in claim 1 it is characterised in that described reinforcing bar (11) with diameter greater than equal to 22mm.
7. construction method as claimed in claim 6 it is characterised in that a diameter of 22mm of described reinforcing bar (11), 25mm,
28mm, 32mm, 36mm, 40mm or more.
8. construction method as claimed in claim 1, it is characterised in that described reinforcing bar (11) stretches out described column (10), is stretched out
Partial length is 20～50 times of the diameter of described reinforcing bar (11).
9. construction method as claimed in claim 8 it is characterised in that described metal bellowss (21) wall thickness be 0.4～
2mm, the high 3.1～5mm of rib, embedded depth is 20～50 times of the diameter of described reinforcing bar (11), the more described reinforcing bar of internal diameter (11)
Big 20～the 40mm of diameter.
10. construction method as claimed in claim 1 is it is characterised in that be equipped with described only slurry on every described reinforcing bar (11)
Circle (42), the big 1cm of nozzle diameter of the more described metal bellowss of the diameter (21) of described slurry check ring (42).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970459.3A CN106400692A (en) | 2016-10-28 | 2016-10-28 | Construction method for stand column and cover beam assembled structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970459.3A CN106400692A (en) | 2016-10-28 | 2016-10-28 | Construction method for stand column and cover beam assembled structure |
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| CN201610970459.3A Pending CN106400692A (en) | 2016-10-28 | 2016-10-28 | Construction method for stand column and cover beam assembled structure |
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Cited By (14)
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| CN107100078A (en) * | 2017-05-19 | 2017-08-29 | 中国五冶集团有限公司 | A kind of packaged type bridges Precast Pier Columns component installation method |
| CN107338728A (en) * | 2017-02-16 | 2017-11-10 | 上海市政工程设计研究总院（集团）有限公司 | A kind of column and bent cap splicing structure |
| CN107447647A (en) * | 2017-07-25 | 2017-12-08 | 武汉理工大学 | Assembled bridge pier and its construction method |
| CN108677731A (en) * | 2018-06-19 | 2018-10-19 | 上海应用技术大学 | A kind of the rotary splicing structure and joining method of bent cap and bridge pier |
| CN108894116A (en) * | 2018-07-24 | 2018-11-27 | 中铁十局集团第五工程有限公司 | Prefabricated stand column assembling and construction method |
| CN109826102A (en) * | 2019-03-14 | 2019-05-31 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | Steel box-girder installation consolidation pier construction exactitude position construction technology |
| CN111996906A (en) * | 2020-09-21 | 2020-11-27 | 山东鲁桥建设有限公司 | Efficient construction method of assembled pier |
| CN112323654A (en) * | 2020-11-17 | 2021-02-05 | 上海市基础工程集团有限公司 | Bridge full-prefabrication widening method |
| CN112458905A (en) * | 2020-11-09 | 2021-03-09 | 中铁大桥局上海工程有限公司 | Splicing adjustment method for prefabricated capping beam and prefabricated stand column |
| CN113005903A (en) * | 2021-02-09 | 2021-06-22 | 浙江交工集团股份有限公司 | Grouting sleeve connection type bent cap assembling construction process |
| CN113136805A (en) * | 2021-04-27 | 2021-07-20 | 福建省亿方建设工程有限公司 | Bracket-free construction method for bent cap |
| WO2022088664A1 (en) * | 2020-10-29 | 2022-05-05 | 中铁四局集团第一工程有限公司 | Installation method for prefabricated capping beam of viaduct |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338728A (en) * | 2017-02-16 | 2017-11-10 | 上海市政工程设计研究总院（集团）有限公司 | A kind of column and bent cap splicing structure |
| CN107100078A (en) * | 2017-05-19 | 2017-08-29 | 中国五冶集团有限公司 | A kind of packaged type bridges Precast Pier Columns component installation method |
| CN107447647A (en) * | 2017-07-25 | 2017-12-08 | 武汉理工大学 | Assembled bridge pier and its construction method |
| CN108677731A (en) * | 2018-06-19 | 2018-10-19 | 上海应用技术大学 | A kind of the rotary splicing structure and joining method of bent cap and bridge pier |
| CN108894116A (en) * | 2018-07-24 | 2018-11-27 | 中铁十局集团第五工程有限公司 | Prefabricated stand column assembling and construction method |
| CN109826102A (en) * | 2019-03-14 | 2019-05-31 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | Steel box-girder installation consolidation pier construction exactitude position construction technology |
| CN111996906A (en) * | 2020-09-21 | 2020-11-27 | 山东鲁桥建设有限公司 | Efficient construction method of assembled pier |
| WO2022088664A1 (en) * | 2020-10-29 | 2022-05-05 | 中铁四局集团第一工程有限公司 | Installation method for prefabricated capping beam of viaduct |
| CN112458905A (en) * | 2020-11-09 | 2021-03-09 | 中铁大桥局上海工程有限公司 | Splicing adjustment method for prefabricated capping beam and prefabricated stand column |
| CN112323654A (en) * | 2020-11-17 | 2021-02-05 | 上海市基础工程集团有限公司 | Bridge full-prefabrication widening method |
| CN113005903A (en) * | 2021-02-09 | 2021-06-22 | 浙江交工集团股份有限公司 | Grouting sleeve connection type bent cap assembling construction process |
| CN113136805A (en) * | 2021-04-27 | 2021-07-20 | 福建省亿方建设工程有限公司 | Bracket-free construction method for bent cap |
| CN114960409A (en) * | 2022-05-23 | 2022-08-30 | 上海市政工程设计研究总院（集团）有限公司 | Vertical continuous bridge stand column prefabricated assembly structure and construction method thereof |
| CN115094778A (en) * | 2022-08-10 | 2022-09-23 | 北京城建设计发展集团股份有限公司 | Method for connecting prefabricated T-shaped piers through bonded prestressed tendons and steel bars |
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Application publication date: 20170215 |