CN103352573B - Construction method for lifting butt joint of single cylindrical pier steel bar - Google Patents
Construction method for lifting butt joint of single cylindrical pier steel bar Download PDFInfo
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- CN103352573B CN103352573B CN201310285438.4A CN201310285438A CN103352573B CN 103352573 B CN103352573 B CN 103352573B CN 201310285438 A CN201310285438 A CN 201310285438A CN 103352573 B CN103352573 B CN 103352573B
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Abstract
The invention provides a construction method for lifting butt joint of a single cylindrical pier steel bar. The method includes the following steps that (1), an inner frame is set up: 3-6 steel tubes are used as inner frame uptight tubes, wherein the length of the steel tubes is comparative to the height of pier studs, and the steel tubes are fixed in a circle of the pier studs in a circumferential distribution mode; a plurality of annular deformed steel bars are used for being fixed on inner frame stand columns according to intervals among pier stud stirrups, and a plurality of inner frame outer rings are formed; the diameter of the inner frame outer rings is slightly smaller than the inner diameter of a pier stud steel bar cage; inner frame outer ring internal use steel bars are used for setting up a construction work platform, and preformed holes are formed in the center of the steel bar work platform and used for passing of a constructor; a crawling ladder is arranged among all the preformed holes and the inner frame is formed; (2), the pier stud steel bar cage is set up: the constructor enters the construction work platform of the inner frame, and by the adoption of the lifting butt joint method, the pier stub steel bar cage is set up; (3), the inner frame is dismantled: after the pier stud steel bar cage is set up, a hoist is used for lifting the inner frame out of the pier stud steel bar cage. The construction method is simple in construction technology, low in construction fees and easy to operate, and quality is easy to guarantee.
Description
Technical field
The present invention relates to a kind of single cylindrical pier steel bar lifting docking construction method.
Background technology
At present, existing cylindrical pier steel bar mechanical connection construction method sets up scaffold in pier stud surrounding, then slings whole for reinforcing bar and dock, set up scaffold construction expense too high, and scaffolding do operating platform dry scratch large, safety factor is low.Lifting after the docking of ground, requires high to crane, lifting difficulty.
Summary of the invention
The invention provides a kind of single cylindrical pier steel bar lifting docking construction method, this construction method, construction technology is simple, and operating expenses is low, easy to operate, and quality easily ensures.
Technical scheme of the present invention is as follows:
Single cylindrical pier steel bar lifting docking construction method, comprises the following steps:
1) internal frame is built:
1.1) internal frame column is built:
With the length steel pipe 3-6 root suitable with pier stud height as internal frame vertical rod, circle distribution mode is fixed in the circle of pier stud place;
1.2) internal frame outer shroud is built:
Be fixed on internal frame column according to pier stud stirrup spacing with multiple circular ring type screw-thread steel, form multiple internal frame outer shroud; The diameter of described internal frame outer shroud is slightly less than the internal diameter of pier stud reinforcing cage;
1.3) construction operation platform is built
In internal frame outer shroud, build construction operation platform with reinforcing bar, described reinforcing bar job platform center is provided with the preformed hole passed through for constructor;
1.4) cat ladder is built:
Cat ladder is set between all preformed holes, forms internal frame;
2) pier stud reinforcing cage is built:
Constructor enters the construction operation platform of internal frame, adopts lifting rendezvous method to build pier stud reinforcing cage;
3) internal frame is removed:
After putting up pier stud reinforcing cage, with crane, internal frame is proposed in pier stud reinforcing cage.
Described internal frame vertical rod is made up of multiple pipe nipple, and one end of described pipe nipple is pin thread, pin thread is provided with punching pin-and-hole, and the other end of described pipe nipple is box, box is provided with punching pin-and-hole;
Described step 1.1) concrete steps be: lift multiple pipe nipple successively, adopt pin thread to be connected with box between multiple pipe nipple and the mode arranging punching pin is connected and forms internal frame vertical rod;
Described step 3) concrete steps be: remove the punching pin between pipe nipple from top to bottom successively, merogenesis takes out.The present invention has the following advantages:
1, reinforcing cage lateral crus hand cradle and operating desk need not be set up, so construction technology is simple.
2, operating personnel complete steel reinforcement abutting joints under the environment of safe ready, so construction quality is improved.
3, internal frame can reuse as a whole, saves operation, so save operating expenses.
Accompanying drawing explanation
Fig. 1 connects detail drawing between internal frame sections;
Fig. 2 is internal frame plan view;
Wherein Reference numeral is: 1-pin thread, 2-box, 3-punching pin-and-hole.
Detailed description of the invention
The steel pipe 3-6 root using length suitable with pier stud height is as shown in Figure 1 and Figure 2 as vertical rod, and carry out layout with circular ring type screw-thread steel according to pier stud stirrup spacing and form internal frame, the diameter of screw-thread steel annulus is less than the internal diameter of pier stud reinforcing cage.The hole that internal frame center stays convenient construction personnel upper and lower, and arrange upper and lower from the cat ladder convenient construction personnel to frame top at the bottom of frame at hole wall.Position on screw-thread steel annulus beyond preformed hole waste steel bar gathers, as the construction operation platform of constructor, when construction is to pushing up most a joint pier stud, when internal frame high for 6m can not propose by the hoisting depth of crane, internal frame can be divided into more piece, pin thread 1, box 2 and punching pin-and-hole 3 are set in joint, during use can merogenesis lift in connect into entirety, removed after reinforcement construction completes merogenesis take out.
Claims (2)
1. single cylindrical pier steel bar lifting docking construction method, comprises the following steps:
1) internal frame is built:
1.1) internal frame column is built:
With the length steel pipe 3-6 root suitable with pier stud height as internal frame vertical rod, circle distribution mode is fixed in the circle of pier stud place;
1.2) internal frame outer shroud is built:
Be fixed on internal frame column according to pier stud stirrup spacing with multiple circular ring type screw-thread steel, form multiple internal frame outer shroud; The diameter of described internal frame outer shroud is slightly less than the internal diameter of pier stud reinforcing cage;
1.3) construction operation platform is built
In internal frame outer shroud, build construction operation platform with reinforcing bar, described reinforcing bar job platform center is provided with the preformed hole passed through for constructor;
1.4) cat ladder is built:
Cat ladder is set between all preformed holes, forms internal frame;
2) pier stud reinforcing cage is built:
Constructor enters the construction operation platform of internal frame, adopts lifting rendezvous method to build pier stud reinforcing cage;
3) internal frame is removed:
After putting up pier stud reinforcing cage, with crane, internal frame is proposed in pier stud reinforcing cage.
2. single cylindrical pier steel bar lifting docking construction method according to claim 1, it is characterized in that: described internal frame vertical rod is made up of multiple pipe nipple, one end of described pipe nipple is pin thread, pin thread is provided with punching pin-and-hole, the other end of described pipe nipple is box, box is provided with punching pin-and-hole;
Described step 1.1) concrete steps be: lift multiple pipe nipple successively, adopt pin thread to be connected with box between multiple pipe nipple and the mode arranging punching pin is connected and forms internal frame vertical rod;
Described step 3) concrete steps be: remove the punching pin between pipe nipple from top to bottom successively, merogenesis takes out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285438.4A CN103352573B (en) | 2013-07-08 | 2013-07-08 | Construction method for lifting butt joint of single cylindrical pier steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285438.4A CN103352573B (en) | 2013-07-08 | 2013-07-08 | Construction method for lifting butt joint of single cylindrical pier steel bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352573A CN103352573A (en) | 2013-10-16 |
| CN103352573B true CN103352573B (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310285438.4A Active CN103352573B (en) | 2013-07-08 | 2013-07-08 | Construction method for lifting butt joint of single cylindrical pier steel bar |
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| Country | Link |
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| CN (1) | CN103352573B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258312B (en) * | 2019-07-16 | 2024-03-22 | 中铁二院工程集团有限责任公司 | Structure connecting section of section assembly pier column, design method and construction method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5527932B2 (en) * | 2007-10-17 | 2014-06-25 | 株式会社大林組 | Design method of pier joint structure |
| CN101481944A (en) * | 2009-01-06 | 2009-07-15 | 四川公路桥梁建设集团有限公司 | Method for mounting high pier, tower over-form construction reinforced bar and movable support thereof |
| CN101824919B (en) * | 2010-03-26 | 2011-06-22 | 中铁隧道集团有限公司 | Deep hole underwater installation and locating method of steel pipe column in weak watery stratum |
| CN102322135A (en) * | 2011-06-13 | 2012-01-18 | 中铁建工集团有限公司 | Elevator shaft construction scaffolding device capable of being elevated along with construction layer of building main body structure and method for setting same |
| CN202672694U (en) * | 2012-06-27 | 2013-01-16 | 中建五局第三建设有限公司 | Shaft construction circulation operating platform |
| CN202831595U (en) * | 2012-09-04 | 2013-03-27 | 深圳市金鑫钢结构建筑安装工程有限公司 | Standardized combination type Platform for aerial work |
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