CN104110035A - Perpendicularity correcting device for concrete-filled steel tube columns constructed by top-down process and construction method implemented by perpendicularity correcting device - Google Patents
Perpendicularity correcting device for concrete-filled steel tube columns constructed by top-down process and construction method implemented by perpendicularity correcting device Download PDFInfo
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- CN104110035A CN104110035A CN201310131150.1A CN201310131150A CN104110035A CN 104110035 A CN104110035 A CN 104110035A CN 201310131150 A CN201310131150 A CN 201310131150A CN 104110035 A CN104110035 A CN 104110035A
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Abstract
The invention relates to the field of pile foundation construction of foundation pit engineering, and discloses a perpendicularity correcting device for concrete-filled steel tube columns constructed by a top-down process. The perpendicularity correcting device comprises a steel casing, and is characterized by further comprising four steel supports, a crossed adjusting frame, two perpendicularity detecting rods, four perpendicularity adjusting jacks and four fine adjustment jacks; the crossed adjusting frame is arranged on the tops of the steel supports, the bottom of the crossed adjusting frame is firmly linked with the top of a to-be-detected steel tube, the four perpendicularity adjusting jacks are respectively arranged on the lower sides of four end points of the crossed adjusting frame, the four fine adjustment jacks are horizontally arranged on the outer wall of the to-be-detected steel tube, and the perpendicularity detecting rods are respectively perpendicularly and firmly connected to the top of the to-be-detected steel tube. The invention further discloses a construction method implemented by the perpendicularity correcting device. The perpendicularity correcting device and the construction method have the advantages that the perpendicularity correcting device and the construction method are mainly applied to construction operation on the column-pile steel tube columns constructed by the top-down process; the perpendicularity correcting device and the construction method are high in universality, the perpendicularity correcting device is simple in manufacture, and the perpendicularity of the column-pile steel tube columns constructed by the top-down process can be controlled at a low cost; the perpendicularity correcting device is simple in structure, easy to manufacture and convenient to operate.
Description
Technical field
The present invention relates to base pit engineering pile foundation construction field, relate in particular to base pit engineering pile foundation area of maintenance.
Background technology
Pit top-down construction was used more and more in recent years.Pit top-down construction, first along building basement sideline or foundation ditch surrounding construction diaphragm wall, engineering pile and the stand column pile of construction foundation pit inside simultaneously, the basement roof of then constructing is as cross binding, downward earth excavation and build each layer of underground structure successively subsequently, until base plate back cover.It is little that reverse construction has space enclosing structure deflection, little on the impact of adjacent building, takies construction space little, shortens the advantages such as engineering time.
During foundation ditch adverse construction method, by stand column pile, bear beam and slab structure deadweight and working load.These loads transmit by inserting the support post of stand column pile inside.This vertical supporting mode is also referred to as a post.Support post adopts steel core concrete column or shaped steel lattice column conventionally.For steel core concrete column, except as vertical applied force member during adverse construction method, toward contact, as permanent structure post, use.Therefore, national regulation has strict control requirement to the verticality of steel core concrete column.In < < underground structrue engineering contrary sequence method technical specification > > JGJ165-2010,6.4.1 money regulation: monolayer steel pipe concrete column verticality allowable variation is not more than 1/1000 and be not more than 25.0mm.
Through prior art literature search is found, steel core concrete column verticality is controlled a variety of construction methods, but all very complicated, is unfavorable for operation, is also unfavorable for promoting.As Shao Kaiping adopts two point control methods in application > > mono-literary composition of an one post construction " verticality two point control methods " of < < contrary sequence method, but must excavate active well, operating personnel's operation in active well during adjustment, complex procedures, operating efficiency is low.
Summary of the invention
The object of the invention is to, provide means for correcting that one of a kind of contrary sequence method foundation pit construction post steel core concrete column installs verticality its there is the advantages such as simple structure, easy to operate, floor space is little.
In order to achieve the above object, the present invention is achieved in that
A contrary sequence method steel core concrete column perpendicularity correction equipment, it comprises a steel casing, it is characterized in that: also comprise four steel supports, a cross adjustment rack, two verticality test rods, four verticality adjustment jack and four fine-adjustment jacks, every two of described steel support is one group, square crossing is arranged mutually, cross adjustment rack is arranged at two groups of steel support end faces and its bottom firmly links with steel pipe end face to be measured, four verticality are adjusted jack and are located at respectively the below of four end points of cross adjustment rack and are positioned in same level, four fine-adjustment jacks are horizontally placed on outer wall of steel pipe to be measured and adjust jack in same fore-and-aft plane with four verticality respectively, two verticality test rods are vertically firmly connected in respectively steel pipe top to be measured, and respectively with two mutually perpendicular end points of cross adjustment rack in same fore-and-aft plane.
A kind of construction method of means for correcting claimed in claim 1; It is characterized in that: it comprises the steps:
Step 1, plain concrete cure process is carried out in the region of the non-stake of steel core concrete column periphery hole site;
Step 2, after plain concrete is hardened to design strength, pre-buried one section of steel casing in stake hole site, and with stake a machine carry out pore-forming operation;
Step 3, stake are after a pore-forming completes, and land clearing is clean, at the axis of steel casing top measuring steel pipe column to be installed, and centered by the axis of steel pipe column to be installed, four steel supports fixing are installed mutually intersecting on vertical both direction;
Step 4, in steel casing, lay steel pipe column, steel pipe column should vertically slowly be put into, and reach absolute altitude, planar central meets designing requirement;
Step 5, cross adjustment rack and steel pipe column top are welded to connect;
Step 6, four end points of cross adjustment rack are supported on respectively on four steel supports, and meanwhile, four end points belows of cross adjustment rack are laid respectively a verticality and adjusted jack;
Step 7, at steel pipe column outer wall, be horizontally disposed with four fine-adjustment jacks, described four fine-adjustment jacks are adjusted jack in same fore-and-aft plane with four verticality respectively;
Step 8, at steel pipe column end face, weld respectively two verticality test rods, two verticality test rods respectively with two mutually perpendicular end points of cross adjustment rack in same fore-and-aft plane;
Step 9, with two transits, by two verticality test rods, observe vertical axis and the plan-position of steel pipe column;
Step 10, according to the observational record of verticality test rod, by corresponding four verticality of jacking, adjust any one in jack, reach the corresponding cross adjustment rack of jacking, thereby adjust steel pipe column verticality and absolute altitude to meeting code requirement, and jack is fixed;
After step 11, steel pipe column top are fixed, in steel casing, with four fine-adjustment jacks, steel pipe column is carried out to verticality fine setting fixing.
The present invention adopts said apparatus and construction method, and it is mainly for the construction operation of inverse method one-column one-pile steel pipe column; Meanwhile, highly versatile, makes simply the control that has solved inverse method one-column one-pile steel pipe column verticality with lower cost.Simple structure, makes easily, easy to operate.
Accompanying drawing explanation
Fig. 1 is top view of the present invention.
Fig. 2 is left view of the present invention.
The specific embodiment
By specific embodiment, further illustrate the present invention below.
As shown in Figure 1 and Figure 2, a kind of contrary sequence method steel core concrete column perpendicularity correction equipment, it comprises a steel casing 2, also comprises that four steel supports 7, cross adjustment rack 4, two verticality test rods 3, four verticality adjust jack 6 and four fine-adjustment jacks 5, every two of described steel support 7 is one group, square crossing is arranged mutually, cross adjustment rack 4 is arranged at two groups of steel support 7 end faces and its bottom firmly links with steel pipe 1 end face to be measured, four verticality are adjusted jack 6 and are located at respectively the below of 4 four end points of cross adjustment rack and are positioned in same level, four fine-adjustment jack water 5 is flat to be arranged at steel pipe 1 outer wall to be measured and to adjust very heavy 6 tops in same fore-and-aft plane with four verticality respectively, two verticality test rods 3 are vertically firmly connected in respectively steel pipe to be measured 1 top, and respectively with 4 two mutually perpendicular end points of cross adjustment rack in same fore-and-aft plane.
The construction method of described means for correcting; It comprises the steps:
Step 1, plain concrete cure process is carried out in the region of the non-stake of steel core concrete column periphery hole site;
Step 2, after plain concrete is hardened to design strength, the long steel casing 2 of pre-buried one section of 1.5m in stake hole site, and carry out pore-forming operation with a machine;
Step 3, stake are after a pore-forming completes, and land clearing is clean, at the axis of steel casing 2 top measuring steel pipe column 1 to be installed, and centered by the axis of steel pipe column 1 to be installed, four steel supports 7 fixing are installed mutually intersecting on vertical both direction;
Step 4, in steel casing 2, lay steel pipe column 1, steel pipe column 1 should vertically slowly be put into, and reach absolute altitude, planar central meets designing requirement;
Step 5, cross adjustment rack 4 is connected with steel pipe column 1 welded top;
Step 6,4 four end points of cross adjustment rack are supported on respectively on four steel supports 7, and meanwhile, 4 four end points belows of cross adjustment rack are laid respectively a verticality and adjusted jack 6;
Step 7, at steel pipe column 1 outer wall, from steel casing 2 tops, down 1 meter of is horizontally disposed with four fine-adjustment jacks 5, described four fine-adjustment jacks 5 are adjusted very heavy 6 tops in same fore-and-aft plane with four verticality respectively;
Step 8, steel pipe column 1 end face weld respectively 3, two verticality test rods 3 of two verticality test rods respectively with 4 two mutually perpendicular end points of cross adjustment rack in same fore-and-aft plane;
Step 9, with two transits, by two verticality test rods 3, observe vertical axis and the plan-position of steel pipe column 1;
Step 10, according to the observational record of verticality test rod 3, by corresponding four verticality of jacking, adjust any one in jack 6, reach the corresponding cross adjustment rack 4 of jacking, thereby adjust steel pipe column 1 verticality and absolute altitude to meeting code requirement, and jack is fixed;
After step 11, steel pipe column 1 top are fixed, at four fine-adjustment jacks 5 of the interior use of steel casing 2, steel pipe column 1 is carried out to verticality fine setting fixing.
The present invention adopts said apparatus and construction method, and it is mainly for the construction operation of inverse method one-column one-pile steel pipe column; Meanwhile, highly versatile, makes simply the control that has solved inverse method one-column one-pile steel pipe column verticality with lower cost.Simple structure, makes easily, easy to operate.
Claims (2)
1. a contrary sequence method steel core concrete column perpendicularity correction equipment, it comprises a steel casing, it is characterized in that: also comprise that four steel supports, a cross adjustment rack, two verticality test rods, four verticality adjust jack and four fine-adjustment jacks, every two of described steel support is one group, square crossing is arranged mutually, cross adjustment rack is arranged at two groups of steel support end faces and its bottom firmly links with steel pipe end face to be measured, four verticality are adjusted jack and are located at respectively the below of four end points of cross adjustment rack and are positioned in same level, four fine-adjustment jacks are horizontally placed on outer wall of steel pipe to be measured and adjust jack in same fore-and-aft plane with four verticality respectively, two verticality test rods are vertically firmly connected in respectively steel pipe top to be measured, and respectively with two mutually perpendicular end points of cross adjustment rack in same fore-and-aft plane.
2. the construction method of a means for correcting claimed in claim 1; It is characterized in that: it comprises the steps:
Step 1, plain concrete cure process is carried out in the region of the non-stake of steel core concrete column periphery hole site;
Step 2, after plain concrete is hardened to design strength, pre-buried one section of steel casing in stake hole site, and with stake a machine carry out pore-forming operation;
Step 3, stake are after a pore-forming completes, and land clearing is clean, at the axis of steel casing top measuring steel pipe column to be installed, and centered by the axis of steel pipe column to be installed, four steel supports fixing are installed mutually intersecting on vertical both direction;
Step 4, in steel casing, lay steel pipe column, steel pipe column should vertically slowly be put into, and reach absolute altitude, planar central meets designing requirement;
Step 5, cross adjustment rack and steel pipe column top are welded to connect;
Step 6, four end points of cross adjustment rack are supported on respectively on four steel supports, and meanwhile, four end points belows of cross adjustment rack are laid respectively a verticality and adjusted jack;
Step 7, at steel pipe column outer wall, be horizontally disposed with four fine-adjustment jacks, described four fine-adjustment jacks are adjusted jack in same fore-and-aft plane with four verticality respectively;
Step 8, at steel pipe column end face, weld respectively two verticality test rods, two verticality test rods respectively with two mutually perpendicular end points of cross adjustment rack in same fore-and-aft plane;
Step 9, with two transits, by two verticality test rods, observe vertical axis and the plan-position of steel pipe column;
Step 10, according to the observational record of verticality test rod, by corresponding four verticality of jacking, adjust any one in jack, reach the corresponding cross adjustment rack of jacking, thereby adjust steel pipe column verticality and absolute altitude to meeting code requirement, and jack is fixed;
After step 11, steel pipe column top are fixed, in steel casing, with four fine-adjustment jacks, steel pipe column is carried out to verticality fine setting fixing.
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| CN201310131150.1A CN104110035A (en) | 2013-04-16 | 2013-04-16 | Perpendicularity correcting device for concrete-filled steel tube columns constructed by top-down process and construction method implemented by perpendicularity correcting device |
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| CN201310131150.1A CN104110035A (en) | 2013-04-16 | 2013-04-16 | Perpendicularity correcting device for concrete-filled steel tube columns constructed by top-down process and construction method implemented by perpendicularity correcting device |
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| CN104389313A (en) * | 2014-11-13 | 2015-03-04 | 中国电建集团铁路建设有限公司 | Positioning perpendicularity adjusting device and method of dual-spliced I-shaped steel latticed column |
| CN104532843A (en) * | 2014-12-26 | 2015-04-22 | 中国一冶集团有限公司 | Method for positioning and straightening steel stand column of stand column pile |
| CN105672314A (en) * | 2016-01-19 | 2016-06-15 | 中建八局第三建设有限公司 | Method for constructing steel pipe upright pile through semi-reversed-construction method |
| CN106013206A (en) * | 2016-06-03 | 2016-10-12 | 广东省源天工程有限公司 | Steel pipe column positioning device and steel pipe concrete column and pile foundation connecting structure |
| CN106436743A (en) * | 2016-10-21 | 2017-02-22 | 开普天（上海）国际贸易有限公司 | Guide pipe for steel stand column guide insertion construction |
| CN106555401A (en) * | 2016-10-21 | 2017-04-05 | 开普天（上海）国际贸易有限公司 | For the stand of guide pipe top positioning |
| CN106958244A (en) * | 2017-04-27 | 2017-07-18 | 中铁隧道集团四处有限公司 | The installation and locating method of ultra-deep and large diameter steel pipe column |
| CN107013046A (en) * | 2017-06-19 | 2017-08-04 | 中冶建工集团有限公司 | A kind of antidote of heavy in section concrete filled steel tube coupled column |
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| CN108374418A (en) * | 2018-03-26 | 2018-08-07 | 中铁五局集团有限公司 | Steel pipe column precise positioning Fast Installation construction technology in a kind of sheltered reverse excavation |
| CN109025328A (en) * | 2018-08-21 | 2018-12-18 | 中国十七冶集团有限公司 | A kind of degree control method in lattice column work progress |
| CN109487822A (en) * | 2018-12-05 | 2019-03-19 | 昆明捷程桩工有限责任公司 | Reverse construction erection of steel pipe column method of adjustment and control device |
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| CN110016914A (en) * | 2019-05-06 | 2019-07-16 | 福建省九龙建设集团有限公司 | Contrary sequence method steel pipe column perpendicularity correction equipment and steel pipe column construction method |
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| CN114108630A (en) * | 2021-12-31 | 2022-03-01 | 张忠良 | Civil engineering building foundation pile construction equipment |
| CN114622556A (en) * | 2022-03-24 | 2022-06-14 | 中国电建市政建设集团有限公司 | AI image recognition-based CFG pile intelligent deviation rectifying method and device |
| CN114622556B (en) * | 2022-03-24 | 2023-08-08 | 中国电建市政建设集团有限公司 | Intelligent correction method and correction device for CFG pile based on AI image recognition |
| CN115492403A (en) * | 2022-10-09 | 2022-12-20 | 浙江省一建建设集团有限公司 | Combined type precise positioning construction device for tower footing steel latticed column |
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