CN102505640A - Method for constructing pier column - Google Patents
Method for constructing pier column Download PDFInfo
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- CN102505640A CN102505640A CN2011103980953A CN201110398095A CN102505640A CN 102505640 A CN102505640 A CN 102505640A CN 2011103980953 A CN2011103980953 A CN 2011103980953A CN 201110398095 A CN201110398095 A CN 201110398095A CN 102505640 A CN102505640 A CN 102505640A
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Abstract
The invention discloses a method for constructing a pier column. The method comprises the following steps of: 1) manufacturing a tool movable outer frame; 2) fixing the tool movable outer frame on a bearing platform, and binding a first-section pier body with steel bars; 3) positioning the steel bars of the first-section pier body; 4) hanging the tool movable outer frame; 5) installing templates on the first-section pier body; 6) pouring concrete into the first-section pier body; 7) reserving the uppermost-section template of the first-section pier body, and detaching other templates; 8) hanging the tool movable outer frame on the uppermost-section template of the first-section pier body, and fixing; 9) positioning steel bars of a second-section pier body; 10) hanging the movable outer frame; 11) installing templates on the second-section pier body; 12) pouring concrete into the second-section pier body; 13) reserving the uppermost-section template of the second-section pier body, and detaching other templates; and 14) repeating the steps 8) to 13) until concrete is poured into a last-section pier body. By the method, a large quantity of working time and materials can be saved.
Description
Technical field
The present invention relates to a kind of job practices of pier stud.
Background technology
The access bridge of gulf, the powder room Yangtze Bridge is a two-layer bridge floor up and down, and the upper strata is a road bridge, and lower floor is the light rail bridge, and two-layer bridge is cast-in-place concrete structure.Because the special tectonic of double deck, the pier stud of access bridge adopts portal frame construction, and two independent pier studs have two-layer crossbeam to link to each other, and cast-in-place beam drops on the crossbeam.Since stressed special, 4 bundle vertical prestressing steel strand be provided with in each pier stud.Need increase a fixedly support system of prestress wire during the construction of pier stud merogenesis.The whole in addition pier stud construction area excavation of foundation pit degree of depth is generally bigger, reaches about 9m the most deeply.Except that bearing platform construction; The part of pier stud also must be constructed in foundation ditch; To accomplish cushion cap and coxopodite pier stud and backfill immediately behind the excavation of foundation pit as early as possible; As adopt conventional way: set up steel pipe support, not only need buy or lease steel pipe support but also need when pit backfill, to dismantle steel pipe support, waste a large amount of man-hour and material.
Summary of the invention
The present invention provides a kind of pier stud job practices that can save a large amount of man-hours and material for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of job practices of pier stud may further comprise the steps:
One) before the pier stud construction; Accomplish the making that tool-type moves outrigger; Tool-type moves outrigger and comprises skeleton and the operating platform that is formed on the skeleton outside, and skeleton comprises the column that is arranged on the pier stud periphery and be around in the crossbeam group on all columns that the crossbeam group comprises the some roads that laterally arrange up and down; Per pass crossbeam group is located in the same horizontal plane, and on per pass crossbeam group, is equipped with the operating platform affixed with skeleton; Column is provided with footing piece;
Two) when construction first segment pier stud, tool-type is moved outrigger be fixed on the cushion cap, move operating platform on the outrigger as operation platform colligation first segment pier shaft reinforcing bar with tool-type;
Three) the first segment pier shaft reinforcing bar after the moulding is positioned with cable rope;
Four) hang tool-type and move outrigger;
Five) first segment pier shaft template is installed:
Before template is installed, welding job platform on the back of the body rib of template;
1) with cushion cap as operation platform, the first segment template is installed on the cushion cap;
2) with the working platform on the first segment template back of the body rib as operation platform, the second joint template is installed on the first segment template;
3) repeating step five) in step 2), until the installation of accomplishing first segment pier shaft template;
Six) go up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft, build first segment pier shaft concrete;
Seven) treat that first segment pier shaft concrete reaches design strength after, keep the first segment pier shaft and go up one and save template, remove other template;
Eight) tool-type is moved outrigger and hang on the first segment pier shaft is gone up a joint template most, and fix, fixing operation is gone up a joint template with the first segment pier shaft and is carried on the back working platform on the rib as operation platform; The operating platform that moves on the outrigger with tool-type saves the pier shaft reinforcing bar as operation platform colligation second;
Nine) joint of second after moulding pier shaft reinforcing bar is positioned with cable rope;
Ten) hang mobile outrigger;
11) the second joint pier shaft template is installed:
1) goes up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft, the first segment template of the second joint pier shaft is installed in the first segment pier shaft goes up one and save on the template;
2) with the working platform on the second joint pier shaft first segment template back of the body rib as operation platform, the second joint template of the second joint pier shaft is installed on the first segment template of the second joint pier shaft;
3) repeating step 11) in step 2), until the installation of accomplishing the second joint pier shaft template;
12) go up working platform on the joint template back of the body rib as operation platform with the second joint pier shaft, build second and save the pier shaft concrete;
13) treat that the second joint pier shaft concrete reaches design strength after, keep the second joint pier shaft and go up a joint template, remove other template, go up one most comprising the first segment pier shaft and save template;
14) repeating step eight)～13), after accomplishing concrete the building of final section pier shaft, treating that final section pier shaft concrete reaches design strength, remove all outer templates of pier shaft.
Said pier stud is the prestressing force pier stud that is provided with prestress wire; The skeleton that said tool-type moves outrigger is provided with top cross beam; Before colligation pier shaft reinforcing bar, steel strand and overcoat bellows thereof are ridden on the top cross beam, limit colligation pier shaft reinforcing bar limit is steel strand and overcoat bellows thereof fixedly.
The outside of said operating platform is provided with guardrail.
Said guardrail is provided with safety net.
Advantage and good effect that the present invention has are: existing large tracts of land scaffold operating platform is tapered on the removable skeleton, and highly significant ground has reduced installation, the material cost of operating platform.And have nonexpondable characteristics of producing once, further practiced thrift construction cost.The present invention is had enough to meet the need convenient and lossless, and surrounding environment is not almost polluted, and economic benefit is quite obvious, can reduce cost about 50%.Realized simple to operately, it is convenient to construct, and improves efficiency of construction, guarantees the purpose of efficient economizing.Can be widely used in the construction of pier stud, particularly large-scale overpass bridge and the pier stud and the limited work items of site contour condition of vertical prestressing are arranged.
Description of drawings
Fig. 1 moves the structural representation of outrigger for the tool-type that the present invention adopted;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 moves the structural representation of the skeleton of outrigger for the tool-type that the present invention adopted;
Fig. 4 moves the steel work sketch map of the operating platform of outrigger for the tool-type that the present invention adopted.
Among the figure: 1, column, 2, the crossbeam group, 3, footing piece, 4, operating platform, 5, guardrail, 6, top cross beam, 7, the first segment pier shaft goes up a joint template most, 8, tool-type moves outrigger, 9, the first segment pier shaft.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 1～Fig. 4, a kind of job practices of pier stud may further comprise the steps:
One) before the pier stud construction, accomplish the making that tool-type moves outrigger 8, this tool-type moves the outrigger 8 inner construction spaces that form should be adaptive with the cross sectional shape of pier stud; Tool-type moves outrigger 8 and comprises skeleton and the operating platform that is formed on the skeleton outside; Skeleton comprises the column 1 that is arranged on the pier stud periphery and is around in the crossbeam group 2 on all columns 1; Crossbeam group 2 comprises the some roads that laterally arrange up and down, and per pass crossbeam group 2 is located in the same horizontal plane, and on per pass crossbeam group 2, is equipped with the operating platform 4 affixed with skeleton; The outside of operating platform 4 is provided with guardrail 5, and guardrail 5 is provided with safety net; Column 1 is provided with footing piece 3.
When pier stud is when being provided with the prestressing force pier stud of prestress wire, this tool-type moves on the skeleton of outrigger should be provided with top cross beam 6.
Two) when construction first segment pier stud; Above-mentioned tool-type is moved outrigger 8 to be fixed on the cushion cap; Utilize crane to ride on the top cross beam 6 steel strand and overcoat bellows thereof, move operating platform 4 on the outrigger as operation platform colligation first segment pier shaft reinforcing bar, steel strand and overcoat bellows thereof with tool-type; Limit colligation pier shaft reinforcing bar limit is steel strand and overcoat bellows thereof fixedly;
Three) the first segment pier shaft reinforcing bar after the moulding is positioned with cable rope, prevent moulding pier shaft reinforcing bar distortion or fall to an inclination;
Four) hang tool-type and move outrigger 8, simultaneously steel strand and overcoat bellows thereof are hung tool-type and move outrigger;
Five) first segment pier shaft template is installed:
Before template is installed, welding job platform on the back of the body rib of template;
1) with cushion cap as operation platform, the first segment template is installed on the cushion cap;
2) with the working platform on the first segment template back of the body rib as operation platform, the second joint template is installed on the first segment template;
3) repeating step five) in step 2), until the installation of accomplishing first segment pier shaft template;
Six) go up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft, build first segment pier shaft concrete;
Seven) treat that first segment pier shaft concrete reaches design strength after, keep first segment pier shaft 9 and go up one and save template 7, remove other template;
Eight) tool-type being moved outrigger hangs on the first segment pier shaft is gone up a joint template most; And fix; Fixing operation is gone up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft; Utilize crane to ride on the top cross beam 6 that tool-type moves outrigger steel strand and overcoat bellows thereof, move operating platform 4 on the outrigger as operation platform with tool-type, the colligation second joint pier shaft reinforcing bar, steel strand and overcoat bellows thereof;
Nine) second after moulding joint pier shaft reinforcing bar is positioned with cable rope, prevent the distortion of moulding pier shaft reinforcing bar or fall to an inclination;
Ten) hang tool-type and move outrigger 8, simultaneously steel strand and overcoat bellows thereof are hung mobile outrigger;
11) the second joint pier shaft template is installed:
1) goes up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft, the first segment template of the second joint pier shaft is installed in the first segment pier shaft goes up one and save on the template 7;
2) with the working platform on the second joint pier shaft first segment template back of the body rib as operation platform, the second joint template of the second joint pier shaft is installed on the first segment template of the second joint pier shaft;
3) repeating step 11) in step 2), until the installation of accomplishing the second joint pier shaft template;
12) go up working platform on the joint template back of the body rib as operation platform with the second joint pier shaft, build second and save the pier shaft concrete;
13) treat that the second joint pier shaft concrete reaches design strength after, keep the second joint pier shaft and go up a joint template, remove other template, go up one most comprising the first segment pier shaft and save template 7;
14) repeating step eight)～13), after accomplishing concrete the building of final section pier shaft, treating that final section pier shaft concrete reaches design strength, remove all outer templates of pier shaft.
The dismounting of each template can be by other construction tool as operation platform, for example hanging basket and cat ladder etc.Can be not yet by other construction tool as operation platform; Order according to is from bottom to top removed by joint; With the working platform on the template back of the body rib as operation platform; The dismounting of final section template is divided by carrying working platform on the rib on the body as outside the operation platform certainly, the dismounting of the highest row's split bolt with the pier stud top as operation platform, need be but go up operation platform by construction tools such as hanging basket and cat ladders.
In the process of pier construction, carry out stretch-draw at the joint and the end of steel strand, should carry out mud jacking in time after stretch-draw is accomplished and handle.The stretch-draw of above-mentioned vertical prestressing and the mud jacking after the stretch-draw are handled and are adopted prior art, repeat no more at this.
Although combine accompanying drawing that the preferred embodiments of the present invention are described above; But the present invention is not limited to the above-mentioned specific embodiment, and the above-mentioned specific embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (4)
1. the job practices of a pier stud is characterized in that, may further comprise the steps:
One) before the pier stud construction; Accomplish the making that tool-type moves outrigger; Tool-type moves outrigger and comprises skeleton and the operating platform that is formed on the skeleton outside, and skeleton comprises the column that is arranged on the pier stud periphery and be around in the crossbeam group on all columns that the crossbeam group comprises the some roads that laterally arrange up and down; Per pass crossbeam group is located in the same horizontal plane, and on per pass crossbeam group, is equipped with the operating platform affixed with skeleton; Column is provided with footing piece;
Two) when construction first segment pier stud, tool-type is moved outrigger be fixed on the cushion cap, move operating platform on the outrigger as operation platform colligation first segment pier shaft reinforcing bar with tool-type;
Three) the first segment pier shaft reinforcing bar after the moulding is positioned with cable rope;
Four) hang tool-type and move outrigger;
Five) first segment pier shaft template is installed:
Before template is installed, welding job platform on the back of the body rib of template;
1) with cushion cap as operation platform, the first segment template is installed on the cushion cap;
2) with the working platform on the first segment template back of the body rib as operation platform, the second joint template is installed on the first segment template;
3) repeating step five) in step 2), until the installation of accomplishing first segment pier shaft template;
Six) go up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft, build first segment pier shaft concrete;
Seven) treat that first segment pier shaft concrete reaches design strength after, keep the first segment pier shaft and go up one and save template, remove other template;
Eight) tool-type is moved outrigger and hang on the first segment pier shaft is gone up a joint template most, and fix, fixing operation is gone up a joint template with the first segment pier shaft and is carried on the back working platform on the rib as operation platform; The operating platform that moves on the outrigger with tool-type saves the pier shaft reinforcing bar as operation platform colligation second;
Nine) joint of second after moulding pier shaft reinforcing bar is positioned with cable rope;
Ten) hang mobile outrigger;
11) the second joint pier shaft template is installed:
1) goes up working platform on the joint template back of the body rib most as operation platform with the first segment pier shaft, the first segment template of the second joint pier shaft is installed in the first segment pier shaft goes up one and save on the template;
2) with the working platform on the second joint pier shaft first segment template back of the body rib as operation platform, the second joint template of the second joint pier shaft is installed on the first segment template of the second joint pier shaft;
3) repeating step 11) in step 2), until the installation of accomplishing the second joint pier shaft template;
12) go up working platform on the joint template back of the body rib as operation platform with the second joint pier shaft, build second and save the pier shaft concrete;
13) treat that the second joint pier shaft concrete reaches design strength after, keep the second joint pier shaft and go up a joint template, remove other template, go up one most comprising the first segment pier shaft and save template;
14) repeating step eight)～13), after accomplishing concrete the building of final section pier shaft, treating that final section pier shaft concrete reaches design strength, remove all outer templates of pier shaft.
2. the job practices of pier stud according to claim 1; It is characterized in that; Said pier stud is the prestressing force pier stud that is provided with prestress wire, and said tool-type moves on the skeleton of outrigger and also is provided with top cross beam, before colligation pier shaft reinforcing bar; Steel strand and overcoat bellows thereof are ridden on the top cross beam, and limit colligation pier shaft reinforcing bar limit is steel strand and overcoat bellows thereof fixedly.
3. the job practices of pier stud according to claim 1 is characterized in that, the outside of said operating platform is provided with guardrail.
4. the job practices of pier stud according to claim 1 is characterized in that, said guardrail is provided with safety net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110398095 CN102505640B (en) | 2011-12-05 | 2011-12-05 | Method for constructing pier column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110398095 CN102505640B (en) | 2011-12-05 | 2011-12-05 | Method for constructing pier column |
Publications (2)
| Publication Number | Publication Date |
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| CN102505640A true CN102505640A (en) | 2012-06-20 |
| CN102505640B CN102505640B (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110398095 Active CN102505640B (en) | 2011-12-05 | 2011-12-05 | Method for constructing pier column |
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| CN (1) | CN102505640B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321155A (en) * | 2013-06-28 | 2013-09-25 | 杭州萧宏建设集团有限公司 | Viaduct pier construction platform system and method for building system and pouring piers |
| CN104746435A (en) * | 2015-04-03 | 2015-07-01 | 中国建筑第六工程局有限公司 | Wide-angle Y-shaped pier column construction method |
| CN109958062A (en) * | 2019-04-12 | 2019-07-02 | 北京市政建设集团有限责任公司 | A kind of pier stud construction technology |
| CN111535197A (en) * | 2020-05-21 | 2020-08-14 | 中冶建工集团有限公司 | Pier column construction method |
| CN111576234A (en) * | 2020-05-29 | 2020-08-25 | 中铁一局集团有限公司 | Safe and rapid construction method for turnover-type high pier |
| CN111633809A (en) * | 2020-06-04 | 2020-09-08 | 上海建工四建集团有限公司 | Construction method of column top integrated operation platform for precast column concrete pouring |
| CN113293694A (en) * | 2021-07-01 | 2021-08-24 | 中交二航局第四工程有限公司 | Rollover frame structure for efficient pier body construction and construction process |
| CN114032782A (en) * | 2021-12-02 | 2022-02-11 | 中铁一局集团有限公司 | Pier column reinforcement construction work platform and method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321155A (en) * | 2013-06-28 | 2013-09-25 | 杭州萧宏建设集团有限公司 | Viaduct pier construction platform system and method for building system and pouring piers |
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| CN111576234A (en) * | 2020-05-29 | 2020-08-25 | 中铁一局集团有限公司 | Safe and rapid construction method for turnover-type high pier |
| CN111576234B (en) * | 2020-05-29 | 2021-09-10 | 中铁一局集团有限公司 | Safe and rapid construction method for turnover-type high pier |
| CN111633809A (en) * | 2020-06-04 | 2020-09-08 | 上海建工四建集团有限公司 | Construction method of column top integrated operation platform for precast column concrete pouring |
| CN113293694A (en) * | 2021-07-01 | 2021-08-24 | 中交二航局第四工程有限公司 | Rollover frame structure for efficient pier body construction and construction process |
| CN113293694B (en) * | 2021-07-01 | 2023-03-14 | 中交二航局第四工程有限公司 | Turnover formwork frame structure for efficient pier body construction and construction process |
| CN114032782A (en) * | 2021-12-02 | 2022-02-11 | 中铁一局集团有限公司 | Pier column reinforcement construction work platform and method |
| CN114032782B (en) * | 2021-12-02 | 2024-07-23 | 中铁一局集团有限公司 | Pier column reinforcement bar binding construction operation platform and method |
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| CN102505640B (en) | 2013-09-25 |
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