CN102162258A - Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof - Google Patents

Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof Download PDF

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Publication number
CN102162258A
CN102162258A CN 201110047200 CN201110047200A CN102162258A CN 102162258 A CN102162258 A CN 102162258A CN 201110047200 CN201110047200 CN 201110047200 CN 201110047200 A CN201110047200 A CN 201110047200A CN 102162258 A CN102162258 A CN 102162258A
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China
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concrete
tower
steel pipe
cushion cap
stake
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CN 201110047200
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CN102162258B (en
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金瓯
胡正华
赵林峰
郑笑芳
姜莉
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WENZHOU CONSTRUCTION GROUP CO Ltd
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WENZHOU CONSTRUCTION GROUP CO Ltd
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Abstract

The invention provides a concrete-filled steel tubular high-pile tower footing structure of a tower crane and a construction method thereof, and belongs to the technical field of building construction. The concrete-filled steel tubular high-pile tower footing structure comprises four cast-in-place piles (Phi600-800) which have embedded length of 40m and are arranged at a substrate, and steel pipe columns (Phi600) which have thickness of 8mm and wrap the cast-in-place piles, wherein, bearing platforms are arranged on the upper ends of the steel pipe columns in a matching manner, the length of the lower ends of the steel pipe columns which extend into foundation soil is 2400-2480mm, the length from the upper ends of the steel pipe columns which are exposed out of the foundation soil to the bottom of the bearing platforms is 4-7m, and the length of the tops of the steel pipe columns which are anchored into the bearing platforms is 150mm; and first concrete layers are poured into the cast-in-place piles and the steel pipe columns, and second concrete layers are poured into the bearing platforms. The concrete-filled steel tubular high-pile tower footing structure and the piles for preliminary engineering can be constructed at the same time without taking up the construction period, and the tower crane can be completely installed before large-area earth excavation so as to be used in advance during the construction process of bottom plates in a basement. The structure has the advantages of simple structure, good safety, short construction period, less steel consumption and low cost, and is convenient in construction.

Description

A kind of tower crane concrete filled steel tube high stake tower-base structure and construction process
Technical field
The invention belongs to technical field of building construction, be specifically related to a kind of tower crane concrete filled steel tube high stake tower-base structure and construction process.
Background technology
Along with building land day is becoming tight, architectural space has constantly become inexorable trend to high-altitude and underground development now, and pillar crane is absolutely necessary as the vertical transport instrument.In the basement construction stage tower crane is set, can cooperates basement construction, therefore need before excavation of foundation pit, in foundation ditch, to be provided with tower crane.
The tower crane tradition has following several method: 1, tower crane stands on the basement roof that closes on main building, the one, underground engineering construction difficulty progress is slow, the 2nd, the basement roof structure bearing capacity generally can not satisfy the requirement of bearing the tower crane load, also need to add vertical support, also have certain technical difficulty and security risk at underfloor; 2, before formal engineering excavation, with the buried tower that stands in advance below basement bottom board of column foot, it is simple that this method seems operation, but the column foot foundation ditch is too dark, and constructional difficulties is relatively more difficult when tower crane is removed in the future; 3, the high stake of steel lattice column column foot is a upper end pre-buried steel lattice column when the construction cast-in-place concrete pile, and rotate easily steel lattice column mounting plane position, and the method steel using amount is big, the expense height, and the steel lattice column welding quality be cannot say for sure to demonstrate,prove; 4, the high stake of cast-in-place concrete pile column foot, pile body need add steel hoop, adds the oblique steel of weldering between the stake and supports, and construction is complicated, and is easy to generate horizontal fracture in pile body and the cushion cap junction certain limit, has potential safety hazard.
Summary of the invention
At the above-mentioned problems in the prior art, the object of the present invention is to provide the good concrete filled steel tube of a kind of easy construction, security performance high stake tower-base structure and construction process thereof.
The high stake of described a kind of concrete filled steel tube tower-base structure, the castinplace pile that is arranged on substrate that comprises the Φ 600-800 of 4 length 40m that bury, thick Φ 600 steel pipe columns of position outsourcing 8mm that expose on every castinplace pile foundation soil, described steel pipe column upper end is equipped with the cushion cap of 3300 * 3300 * (1350-1600) mm, it is characterized in that steel pipe column wraps in the upper end of castinplace pile outward, pipe column lower end stretches into length 2400-3000mm in the foundation soil, steel pipe column upper end expose foundation soil above to length between the cushion cap bottom be 4-7m, it is 150mm that its top anchors into cushion cap length, simultaneously setting up the column cap anchor rib at its top anchors in the cushion cap, be cast with first layer of concrete in described castinplace pile and the steel pipe column respectively, be cast with second layer of concrete in the described cushion cap.
The high stake of described a kind of concrete filled steel tube tower-base structure, it is characterized in that described cushion cap intersects to form steel skeleton construction by cushion cap reinforcing cage and the Φ 8@400 tension rib of Φ 14@200, form by the cast of second layer of concrete again, four jiaos of cushion cap are made as salient angle, salient angle is provided with the dark beam of right-angled intersection of (1100-1350mm) * 1200 mm(h * b), and the dark beam of described right-angled intersection respectively is provided with the principal rod of 7 Φ 25 and first stirrup of Φ 8@200 up and down.
The high stake of described a kind of concrete filled steel tube tower-base structure, be provided with reinforcing cage in described castinplace pile of its feature and the steel pipe column, described reinforcing cage forms steel frame construction by second stirrup of vertical applied force muscle and Φ 8@200, formed by the cast of first layer of concrete, described vertical applied force muscle comprises steel bar stress and the Φ 12@2000 reinforcing rib of 8 Φ 20mm again.
The high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that described castinplace pile and steel pipe column lap-joint also are equipped with the additional muscle of 8 Φ 25mm of reinforcement effect.
The high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that described steel pipe column stretches into the 3rd stirrup of the Φ 8@100 of cushion cap place reinforcing cage.
The high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that the described first layer of concrete intensity is C25.
The high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that the described second layer of concrete intensity is C35.
The high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that described steel pipe column upper end welding column cap anchor rib, and lap length 120 ㎜, described column cap anchor rib are that 8 Φ, 20, the three stirrups are Φ 8@100, anchor into cushion cap length 1300 ㎜.
The high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that being provided with water-stopping structure between described castinplace pile and building base plate.
The construction process of the high stake of described a kind of concrete filled steel tube tower-base structure is characterized in that comprising the steps:
1) build priming concrete pile hole underground digging earlier, the cast-in-place concrete pile pore-forming, at castinplace pile top pre-buried steel tubing string, anchorage length is 2400-2480mm, puts into reinforcing cage again, pours into a mould first layer of concrete;
2) dig the earthwork of column foot cushion cap, stone bolt cutter pile crown, column cap anchor rib in welded steel pipe column top waters the cushion cap bed course again, colligation cushion cap reinforcing bar, shuttering, pre-buried tower crane built-in fitting waters cushion cap second layer of concrete.
By adopting above-mentioned technology, compared with prior art, beneficial effect of the present invention is as follows:
1) construction of the high stake of concrete filled steel tube of the present invention tower-base structure can be constructed simultaneously with the advance works stake, does not take the duration, and tower crane is installed and can be finished before the large tracts of land soil excavation, just can use in advance during the basement bottom board construction;
2) simple in structure, and safety is good;
3) easy construction, the duration is short;
4) tower-base structure steel using amount of the present invention is few, and cost is low.
Description of drawings
Fig. 1 is a vertical view structural representation of the present invention;
Fig. 2 is the structural representation of bored concrete pile of the present invention and steel pipe column;
Fig. 3 is an A-A sectional drawing among Fig. 2;
Fig. 4 is a B-B sectional drawing among Fig. 2.
Among the figure: 1-castinplace pile, 2-cushion cap, 201-tension rib, 202-cushion cap reinforcing cage, 203-second layer of concrete, the dark beam of 204-right-angled intersection, the 205-principal rod, 206-first stirrup, 3-the 3rd stirrup, the 4-steel pipe column, 5-ground, 6-reinforcing cage, 601-vertical applied force muscle, 602-second stirrup, 603-adds muscle, 7-first layer of concrete, 8-column cap anchor rib anchor.
The specific embodiment
The invention will be further described below in conjunction with Figure of description and embodiment:
Shown in Fig. 1-4, the high stake of a kind of concrete filled steel tube tower-base structure, the castinplace pile that is arranged on substrate 1 that comprises the Φ 600-800 of 4 length 40m that bury, thick Φ 600 steel pipe columns 4 of position outsourcing 8mm that expose on every castinplace pile 1 ground 5 soil, described steel pipe column 4 upper ends are equipped with the cushion cap 2 of 3300 * 3300 * (1350-1600) mm, the steel pipe column 4 outer upper ends that wrap in castinplace pile 1, length 2400-3000mm in ground 5 soil is stretched in steel pipe column 4 lower ends, be preferably 2400-2480mm, steel pipe column 4 upper ends expose foundation soil above to length between cushion cap 2 bottoms be 4-7m, it is 150mm that its top anchors into cushion cap length, simultaneously setting up the column cap anchor rib at its top anchors in the cushion cap, being cast with intensity in described castinplace pile 1 and the steel pipe column 4 respectively is first layer of concrete 7 of C25, and being cast with intensity in the described cushion cap 2 is C35 second layer of concrete 203.Be provided with reinforcing cage 6 in described castinplace pile 1 and the steel pipe column 4, described reinforcing cage 6 forms steel frame construction by vertical applied force muscle 601 and Φ 8@,200 second stirrup 602, formed by 7 cast of first layer of concrete, described vertical applied force muscle 601 comprises steel bar stress and the Φ 12@2000 reinforcing rib of 8 Φ 20mm again.Castinplace pile 1 and steel pipe column 4 lap-joints also are equipped with the additional muscle 603 of 8 Φ 25mm of reinforcement effect.
As shown in Figure 1, described cushion cap 2 intersects to form steel skeleton construction by cushion cap reinforcing cage 202 and the Φ 8@400 tension rib 201 of Φ 14@200, form by 203 cast of second layer of concrete again, four jiaos of cushion cap 2 are made as salient angle, salient angle is provided with the dark beam 204 of right-angled intersection of (1100-1350mm) * 1200 mm(h * b), and the dark beam 204 of described right-angled intersection respectively is provided with the principal rod 205 of 7 Φ 25 and the stirrup 206 of Φ 8@200 up and down.
As shown in Figure 2, described steel pipe column 4 upper ends welding column cap anchor rib 8, lap length 120 ㎜, described column cap anchor rib 8 Φ 20, the three stirrups 3 are the reinforcing bar of Φ 8@100, anchor into cushion cap length 1300 ㎜.Be provided with water-stopping structure between described castinplace pile 1 and building base plate.
Construction process as the high stake of the described a kind of concrete filled steel tube of Fig. 1-4 tower-base structure, comprise the steps: 1) build priming concrete pile hole underground digging earlier, the cast-in-place concrete pile pore-forming, at castinplace pile top pre-buried steel tubing string, anchorage length is 2400-3000mm, be preferably 2400-2480mm, put into reinforcing cage again, pour into a mould first layer of concrete 7; 2) dig the earthwork of column foot cushion cap, stone bolt cutter pile crown, welded steel pipe column top anchor rib again, water the cushion cap bed course, colligation cushion cap reinforcing bar, shuttering, pre-buried tower crane built-in fitting waters cushion cap second layer of concrete 203, have simple in structure, safety good, easy construction, the duration is short, steel using amount is few, cost is low advantage.

Claims (10)

1. the high stake of concrete filled steel tube tower-base structure, the castinplace pile that is arranged on substrate (1) that comprises the Φ 600-800 of 4 length 40m that bury, thick Φ 600 steel pipe columns of position outsourcing 8mm (4) that expose on every castinplace pile (1) foundation soil, described steel pipe column (4) upper end is equipped with the cushion cap (2) of 3300 * 3300 * (1350-1600) mm, it is characterized in that the outer upper end that wraps in castinplace pile (1) of steel pipe column (4), length 2400-3000mm in the foundation soil is stretched in steel pipe column (4) lower end, steel pipe column (4) upper end expose foundation soil above to length between cushion cap (2) bottom be 4-7m, it is 150mm that its top anchors into cushion cap length, simultaneously setting up column cap anchor rib anchor (8) at its top goes in the cushion cap, be cast with first layer of concrete (7) respectively in described castinplace pile (1) and the steel pipe column (4), be cast with second layer of concrete (203) in the described cushion cap (2).
2. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure, it is characterized in that described cushion cap (2) intersects to form steel skeleton construction by cushion cap reinforcing cage (202) and the Φ 8@400 tension rib (201) of Φ 14@200, form by second layer of concrete (203) cast again, four jiaos of cushion cap (2) are made as salient angle, salient angle is provided with the dark beam of right-angled intersection (204) of (1100-1350mm) * 1200 mm(h * b), and the dark beam of described right-angled intersection (204) respectively is provided with the principal rod (205) of 7 Φ 25 and first stirrup (206) of Φ 8@200 up and down.
3. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure, be provided with reinforcing cage (6) in described castinplace pile of its feature (1) and the steel pipe column (4), described reinforcing cage (6) forms steel frame construction by vertical applied force muscle (601) and Φ 8@,200 second stirrup (602), formed by first layer of concrete (7) cast, described vertical applied force muscle (601) comprises steel bar stress and the Φ 12@2000 reinforcing rib of 8 Φ 20mm again.
4. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure is characterized in that described castinplace pile (1) and steel pipe column (4) lap-joint also are equipped with the additional muscle (603) of 8 Φ 25mm of reinforcement effect.
5. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure is characterized in that described steel pipe column (4) stretches into the 3rd stirrup (3) of the Φ 8@100 of cushion cap place reinforcing cage.
6. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure is characterized in that described first layer of concrete (7) intensity is C25.
7. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure is characterized in that described second layer of concrete (203) intensity is C35.
8. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure, it is characterized in that described steel pipe column upper end welding column cap anchor rib (8), lap length 120 ㎜, described column cap anchor rib (8) is 8 Φ 20, the 3rd stirrup (3) is Φ 8@100, anchors into cushion cap length 1300 ㎜.
9. the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure is characterized in that being provided with water-stopping structure between described castinplace pile (1) and building base plate.
10. the construction process of the high stake of a kind of concrete filled steel tube according to claim 1 tower-base structure is characterized in that comprising the steps:
1) build priming concrete pile hole underground digging earlier, the cast-in-place concrete pile pore-forming, at castinplace pile (1) top pre-buried steel tubing string (4), anchorage length is 2400-2480mm, puts into reinforcing cage (6) again, pours into a mould first layer of concrete (7);
2) dig the earthwork of column foot cushion cap, stone bolt cutter pile crown, welded steel pipe column top column cap anchor rib (8) waters the cushion cap bed course again, colligation cushion cap reinforcing bar, shuttering, pre-buried tower crane built-in fitting waters cushion cap second layer of concrete (203).
CN2011100472009A 2011-02-28 2011-02-28 Concrete-filled steel tubular high-pile tower footing structure of tower crane and construction method thereof Active CN102162258B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587404A (en) * 2012-02-09 2012-07-18 中国十九冶集团有限公司 Construction method for large-sized blast furnace foundation
CN103015449A (en) * 2011-09-28 2013-04-03 中国建筑第七工程局有限公司 Joint soil nail-reinforcing construction method for foundation micropiles of slope top tower cranes for deep foundation pits
CN103498482A (en) * 2013-09-30 2014-01-08 上海建工七建集团有限公司 Three-pile lattice type combined tower crane foundation structure
CN103590535A (en) * 2013-11-14 2014-02-19 苏州工业园区设计研究院股份有限公司 Opening structure of reinforced concrete beam
CN104141301A (en) * 2014-03-25 2014-11-12 中国建筑第四工程局有限公司 Construction method and structure for mounting reverse-construction steel pipe column in rotary drilled pile hole
CN104264706A (en) * 2014-10-22 2015-01-07 中建一局集团第二建筑有限公司 Externally-use elevator girder foundation configuration and construction method thereof
CN106567402A (en) * 2016-10-19 2017-04-19 上海二十冶建设有限公司 Hillside tower crane foundation construction device and construction method thereof

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Publication number Priority date Publication date Assignee Title
US20040131428A1 (en) * 2003-01-06 2004-07-08 Henderson Allan P. Pile anchor foundation
CN201305854Y (en) * 2008-11-27 2009-09-09 河南省电力公司三门峡供电公司 Electric tower foundation with flare tubes
CN201991013U (en) * 2011-02-28 2011-09-28 温州建设集团有限公司 High-piled tower footing structure of tower crane concrete-filled steel tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040131428A1 (en) * 2003-01-06 2004-07-08 Henderson Allan P. Pile anchor foundation
CN201305854Y (en) * 2008-11-27 2009-09-09 河南省电力公司三门峡供电公司 Electric tower foundation with flare tubes
CN201991013U (en) * 2011-02-28 2011-09-28 温州建设集团有限公司 High-piled tower footing structure of tower crane concrete-filled steel tube

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103015449A (en) * 2011-09-28 2013-04-03 中国建筑第七工程局有限公司 Joint soil nail-reinforcing construction method for foundation micropiles of slope top tower cranes for deep foundation pits
CN102587404A (en) * 2012-02-09 2012-07-18 中国十九冶集团有限公司 Construction method for large-sized blast furnace foundation
CN102587404B (en) * 2012-02-09 2014-11-05 中国十九冶集团有限公司 Construction method for large-sized blast furnace foundation
CN103498482A (en) * 2013-09-30 2014-01-08 上海建工七建集团有限公司 Three-pile lattice type combined tower crane foundation structure
CN103590535A (en) * 2013-11-14 2014-02-19 苏州工业园区设计研究院股份有限公司 Opening structure of reinforced concrete beam
CN104141301A (en) * 2014-03-25 2014-11-12 中国建筑第四工程局有限公司 Construction method and structure for mounting reverse-construction steel pipe column in rotary drilled pile hole
CN104141301B (en) * 2014-03-25 2016-04-13 中国建筑第四工程局有限公司 Inverse construction method and the structure of making steel pipe column are installed revolving to dig in stake holes
CN104264706A (en) * 2014-10-22 2015-01-07 中建一局集团第二建筑有限公司 Externally-use elevator girder foundation configuration and construction method thereof
CN104264706B (en) * 2014-10-22 2016-01-20 中建一局集团第二建筑有限公司 External elevator steel beam foundation structure and construction method thereof
CN106567402A (en) * 2016-10-19 2017-04-19 上海二十冶建设有限公司 Hillside tower crane foundation construction device and construction method thereof

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