CN201495555U - Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center - Google Patents

Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center Download PDF

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Publication number
CN201495555U
CN201495555U CN2009203082440U CN200920308244U CN201495555U CN 201495555 U CN201495555 U CN 201495555U CN 2009203082440 U CN2009203082440 U CN 2009203082440U CN 200920308244 U CN200920308244 U CN 200920308244U CN 201495555 U CN201495555 U CN 201495555U
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CN
China
Prior art keywords
tower
crane foundation
steel
construction
cap
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Expired - Lifetime
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CN2009203082440U
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Chinese (zh)
Inventor
傅金栋
郑宏
张俊华
高新忠
王兴业
宋凯
孙莹
王冬
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Tianjin No2 Construction Engineering Co Ltd
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Tianjin No2 Construction Engineering Co Ltd
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Priority to CN2009203082440U priority Critical patent/CN201495555U/en
Application granted granted Critical
Publication of CN201495555U publication Critical patent/CN201495555U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a cap tower-crane foundation of concrete cast-in-place high piles for tower erection at the house center, which is characterized by mainly comprising four support piles, a reinforced concrete cap supported by the support piles, and sealed steel hoops embedded in the support piles. The support piles are concrete cast-in-place support piles. The cap tower-crane foundation has the advantages that compared with a steel platform tower-crane foundation and a steel-tube high pile tower-crane foundation the cap tower-crane foundation has small steel quantity and evidently lower construction cost than steel structures with same height; the cap tower-crane foundation of concrete cast-in-place high piles adopts conventional construction process, thereby having small construction difficulty, easily guaranteed quality and simple and quick construction; final-period removal of the tower-crane foundation is easier than that of the steel-tube concrete pile; the bearing capacity meets safety requirements; and the cap tower-crane foundation has the evident advantages of low construction cost, simple construction and short construction period.

Description

The cushion cap column foot of the high stake of the upright tower concrete pouring of the room heart
Technical field
The utility model belongs to the upright tower technology of the room heart in the building, relates in particular to a kind of cushion cap column foot that is applicable to the high stake of the upright tower concrete pouring of the room heart of highrise building.
Background technology
Architectural space has constantly become inexorable trend to high-altitude and underground development.It is occupied with underground constructions such as rooms that the underground space between newly-built highrise building periphery and each building progressively is linked to be whole large tracts of land underground garage, underground people's air defense, equipment.Pillar crane is set during construction has certain degree of difficulty: 1, in the face of the engineering of above-mentioned building types, as routinely tower crane being located at the foundation trench edge, the large-area underground construction scope of operation can't effectively cover, and the underground engineering construction progress will be very slow.Main is, often excessive because of tower crane and main building horizontal range, causes tower crane normally to adhere to main building and influences main body construction.2, tower crane is stood on the basement roof that closes on main building as treating again after underground construction is finished, 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.Therefore, promptly intracardiac upright tower scheme is present construction technology approach in the room before excavation of foundation pit.It has not only solved level and vertical transport problem during the underground engineering construction, has accelerated construction speed, and because choice, tower crane position is bigger, is convenient to the installation that tower crane adheres to rod member in the main building construction.The intracardiac upright tower in room has multiple frame mode: 1, the platform-type column foot of steel belongs to overhead base form.Sequence of construction is: weldable steel platform-Li Ta-foundation ditch step excavation on the pre-buried steel lattice column-lattice column of upper end during the construction concrete filling pile-and with excavating with the welding steel diagonal brace.The method steel using amount is big, the expense height, and the link technique difficulty of steel platform and body of the tower is bigger, unmanned substantially in recent years the employing.2, the high stake of the concrete steel pipe of using always column foot belongs to overhead base form.Sequence of construction: construction concrete filling pile time upper end pre-buried steel tubing string-steel pipe column upper end welding pile cover-descending reinforcing cage-pre-buried body of the tower lower margin-build concrete-Li Ta-with excavation of foundation pit is with the welding steel diagonal brace.The high stake of concrete steel pipe column foot degree of safety is higher, but steel using amount is big, many expenses of operation height, and later stage dismounting difficulty is big.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and the cushion cap column foot of the high stake of the upright tower concrete pouring of a kind of room heart is provided, and it adopts conventional concrete pouring construction technology, and difficulty of construction is little, and steel using amount is little, and bearing capacity satisfies safety requirements.
The utility model for achieving the above object, by the following technical solutions: the cushion cap column foot of the high stake of the upright tower concrete pouring of a kind of room heart, it is characterized in that: mainly contain four supporting piles, supporting pile pop-up steel bar concrete cushion cap and be embedded in the interior sealing iron hoop of supporting pile, described supporting pile is the supporting pile of concrete pouring formula.
Being fixedly connected with oblique steel by the sealing iron hoop between the described supporting pile supports.
The utility model beneficial effect: compare with steel platform column foot and the high stake of steel pipe column foot, steel using amount is little, and cost is starkly lower than the steel work of equal height; Concrete pouring highrise pile cap tower crane adopts conventional construction technology, and difficulty of construction is little, and quality is easy to guarantee that easy construction is quick; The later stage column foot is removed simpler than steel pipe concrete stake; Bearing capacity satisfies safety requirements.Cost is low, easy construction, and it is short to take the duration, with the obvious advantage.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the johning knot composition that oblique steel supports;
Fig. 3 is the suspended deck structure schematic diagram.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
See accompanying drawing for details, the cushion cap column foot of the high stake of the upright tower concrete pouring of a kind of room heart mainly contains four supporting piles 1, supporting pile pop-up steel bar concrete cushion cap 2 and is embedded in the interior sealing iron hoop 3 of supporting pile, and described supporting pile is the supporting pile of concrete pouring formula.Be fixedly connected with oblique steel by the sealing iron hoop between the described supporting pile and support 4.
Embodiment
1, project profile
Certain affordable housing high building project is high-layer shear force wall structural construction group, 26~32 layers on the ground, and underground whole garage one deck, between local devices two layers, base plate hypodermis absolute altitude-7.1m.For in underground engineering construction, utilizing tower crane to carry out level and vertical transport, before the intracardiac fluting in basement room, found tower.
2, concrete pouring highrise pile cap column foot structure:
This column foot utilizes φ 600 concrete filling piles as supporting pile, can resist the tower crane overturning moment effectively again simultaneously for reduce the column foot floor space as far as possible, and supporting pile center to center distance is taken as 2800mm, pop-up 4000 * 4000 thickness 1400mm steel bar concrete cushion caps.
Tear open and later stage of concrete cushion cap removes for ease of the peace of tower crane, absolute altitude is positioned at basement roof more than 5 at the bottom of the cushion cap, and supporting pile is exposed to the above height of bottom land 6250mm.
For guaranteeing the resistance to overturning of highrise pile cap, shift to an earlier date pre-buried sealing iron hoop on reinforcing cage during filling pile construction, as the tie point of stake and the support of oblique steel.Support with between each, adding the oblique steel of weldering with excavation of foundation pit.
3, concrete pouring highrise pile cap column foot stress:
The column foot castinplace pile stretches into bottom land and combines acquisition pile side friction and end resistance with the soil body with the lower part, in order to deadweight and the overturning moment of bearing tower crane.When the stake of front end was under pressure, the stake of rear end then was subjected to pulling force.Along with the rotation of tower crane, the stress of stake is also changed between pressurized and tension accordingly.
Castinplace pile except that the supporting role of playing cushion cap, also will be resisted the horizontal moment of torsion that produces when tower crane rotates at the above bracketed part of bottom land, and the horizontal thrust that wind action produced.Therefore between stake, add the oblique steel of weldering and support, make bracketed part form the constant space structures system of triangle geometry, guarantee the resistance to overturning of highrise pile cap.
Cushion cap is the conversion layer between high stake and the body of the tower, and it not only passes to castinplace pile with deadweight, overturning moment, horizontal force, the moment of torsion of tower crane, and it also plays and links pile body and body of the tower is played anchorage effect.Therefore it is that shear component is bent, vertically is subjected to level.
Concrete pouring highrise pile cap tower crane stake Force Calculation: tower crane technical data: tower crane model FH6018, tower crane deadweight 800kN under the free height state, the maximum overturning moment 2600kN-m of tower crane.Cushion cap technical data: the cushion cap length of side 4000 * 4000mm, thickness 1400mm, concrete strength grade C35.Stake technical data: stake diameter 600, pile center's distance 2800, concrete strength grade C35.Stake bracketed part height 6250mm does not participate in bearing capacity calculation.
At the column foot secure context, in Excavation Process, the weldering bearing diagonal in time follows up between stake, has guaranteed the column foot monolithic stability.No matter be under tower crane free height state or under the main body construction attachment state, any anomaly do not occur.
4, the processing of adjacent structure
(1) basement bottom board: the base plate construction time is passed through the position in the column foot stake and is reserved 4 * 4 meters square holes, and constuction joint gets rid of muscle and handles identically with other concrete ater-casting, and the bottom board concrete bed course under the square hole is thickeied to 200mm, and surface layer is done polyamine fat waterproof.After treating that major project completion column foot is removed, pile crown is rejected to the following 200mm of base plate, hole, the side of cleaning constuction joint mends bed course and waterproofing course, and the welding of base plate reinforcing bar is neat, builds the expansion concrete.
(2) basement roof: pass through the position in the column foot stake during top board construction and reserve 4 * 4 meters square holes, constuction joint get rid of muscle handle identical with other concrete ater-casting, after the column foot dismounting with square hole polishing.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims (2)

1. a room heart founds the cushion cap column foot of the high stake of tower concrete pouring, it is characterized in that: mainly contain four supporting piles, supporting pile pop-up steel bar concrete cushion cap and be embedded in the interior sealing iron hoop of supporting pile, described supporting pile is the supporting pile of concrete pouring formula.
2. the cushion cap column foot of the high stake of the upright tower concrete pouring of the room according to claim 1 heart is characterized in that: be fixedly connected with oblique steel by the sealing iron hoop between the described supporting pile and support.
CN2009203082440U 2009-08-18 2009-08-18 Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center Expired - Lifetime CN201495555U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203082440U CN201495555U (en) 2009-08-18 2009-08-18 Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203082440U CN201495555U (en) 2009-08-18 2009-08-18 Cap tower-crane foundation of concrete cast-in-place high pile for tower erection at the house center

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021916A (en) * 2010-11-02 2011-04-20 河南省电力公司洛阳供电公司 Foundation construction method of iron tower
CN102433889A (en) * 2011-10-20 2012-05-02 中天建设集团有限公司天津分公司 Method for constructing high-rise pile cap tower footing and high-rise pile cap tower footing structure
CN102561384A (en) * 2012-01-31 2012-07-11 中天建设集团有限公司天津分公司 Steel hoop truss type elevated pile cap tower crane foundation construction method and structure
CN103132537A (en) * 2013-02-04 2013-06-05 中天建设集团有限公司 Steel latticed column homocentric-square-shaped concrete bearing platform combination type tower crane base structure and construction method
CN103924611A (en) * 2014-05-06 2014-07-16 同济大学建筑设计研究院(集团)有限公司 Prefabricated prestressed concrete frame inserting and connecting integrated high pile bearing platform foundation
CN102021916B (en) * 2010-11-02 2016-12-14 河南省电力公司洛阳供电公司 A kind of method of iron tower foundation construction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021916A (en) * 2010-11-02 2011-04-20 河南省电力公司洛阳供电公司 Foundation construction method of iron tower
CN102021916B (en) * 2010-11-02 2016-12-14 河南省电力公司洛阳供电公司 A kind of method of iron tower foundation construction
CN102433889A (en) * 2011-10-20 2012-05-02 中天建设集团有限公司天津分公司 Method for constructing high-rise pile cap tower footing and high-rise pile cap tower footing structure
CN102561384A (en) * 2012-01-31 2012-07-11 中天建设集团有限公司天津分公司 Steel hoop truss type elevated pile cap tower crane foundation construction method and structure
CN103132537A (en) * 2013-02-04 2013-06-05 中天建设集团有限公司 Steel latticed column homocentric-square-shaped concrete bearing platform combination type tower crane base structure and construction method
CN103924611A (en) * 2014-05-06 2014-07-16 同济大学建筑设计研究院(集团)有限公司 Prefabricated prestressed concrete frame inserting and connecting integrated high pile bearing platform foundation

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