CN203821428U - Annular wedge block assembly type concrete precast block tower crane foundation - Google Patents

Annular wedge block assembly type concrete precast block tower crane foundation Download PDF

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Publication number
CN203821428U
CN203821428U CN201420226145.9U CN201420226145U CN203821428U CN 203821428 U CN203821428 U CN 203821428U CN 201420226145 U CN201420226145 U CN 201420226145U CN 203821428 U CN203821428 U CN 203821428U
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China
Prior art keywords
bearing
tower crane
bearing blocks
blocks
type concrete
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CN201420226145.9U
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Inventor
刘家静
完海鹰
武朝晖
王兴明
夏文新
王贤桂
谢红宇
吴元生
高天阳
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ANHUI SANJIAN ENGINEERING Co Ltd
Hefei University of Technology
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ANHUI SANJIAN ENGINEERING Co Ltd
Hefei University of Technology
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Abstract

The utility model discloses an annular wedge block assembly type concrete precast block tower crane foundation. The annular wedge block assembly type concrete precast block tower crane foundation comprises eight foundation blocks, wherein the eight foundation blocks comprise two bearing blocks 1, two bearing blocks 2 of a pedestal with prestressing force, two non-bearing blocks 3, two non-bearing blocks 4 of the pedestal with prestressing force which are all arranged alternately, and the outer side wall of each foundation block is a 45-degree sector surface. The lower portions of the bearing blocks 1 and the lower portions of the bearing blocks 2 of the pedestal with prestressing force are of solid structures, the upper portions of the bearing blocks 1 and the upper portions of the bearing blocks 2 of the pedestal with prestressing force are of hollow structures partially hollowed out, the lower portions of the non-bearing blocks 3 and the lower portions of the non-bearing blocks 4 of the pedestal with prestressing force are of solid structures, and the upper portions of the non-bearing blocks 3 and the upper portions of the non-bearing blocks 4 of the pedestal with prestressing force are of hollow structures integrally hollowed out. It is guaranteed that the assembly type tower crane foundation has certain superiority compared with other types of tower foundations, annular wedge blocks are assembled by applying circumferential prestressing force, and thus the annular wedge block tower foundation which is capable of being reused, fast in assembly and disassembly and remarkable in economic benefit is formed.

Description

A kind of annular voussoir Combined type concrete prefabricated piece tower crane
Technical field
The utility model relates to a kind of tower crane, specifically a kind of Combined type concrete prefabricated piece tower crane that can use at the scene ring orientation prestress that annular voussoir is spliced and can be reused fast.
background field
In Practical Project, generally adopt at present cast-in-situ steel reinforced concrete mass-type foundation both at home and abroad, floor space is large, and concrete and arrangement of reinforcement consumption are many, long construction period.Immovability due to cast-in-situ steel reinforced concrete mass-type foundation, causes the wasting of resources; In addition, after engineering construction completes, leave underground obstacle, removed difficulty, produced building waste, caused environment pollution.
Just due to above these adverse effects, in recent years, various novel column foot foundations in engineering construction field, have in succession been there are, as " Zhao Shi column foot ", " steel tower base " etc., but the restriction due to aspects such as the safety of being used, convenience and economy, cannot obtain wide popularization and application.
Utility model content
The purpose of this utility model has been to provide a kind of annular voussoir Combined type concrete prefabricated piece tower crane, the service behaviour of type foundation for tower crane is carried out to effective and rational finite element modelling, guarantee that type foundation for tower crane compares other type column foot and have certain superiority, the mode combined annular voussoir that can apply by ring orientation prestress, thus form can reuse, the annular voussoir column foot of fast assembling and disassembling and remarkable in economical benefits.
The technical solution of the utility model is:
A kind of annular voussoir Combined type concrete prefabricated piece tower crane, include 8 basic blocks, 8 basic blocks are respectively 2 bearing blocks of alternately arranging, 2 band prestressing bed bearing blocks, 2 non-bearing pieces, 2 band prestressing bed non-bearing pieces, each basic blocks lateral wall is 45 ° of sectors, described bearing block and band prestressing bed bearing block bottom are solid construction, top is the local hollow structure cutting out, described non-bearing piece and band prestressing bed non-bearing piece bottom are solid construction, and top is the whole hollow structure cutting out.
Described bearing block and band prestressing bed bearing block basal surface contact with ground, and upper surface solid section is connected with top tower crane bearing by bolt; Non-bearing piece and band prestressing bed non-bearing piece only have basal surface to contact with ground, and upper surface is without load.
Described bearing block and the hollow structure cutting out with prestressing bed bearing block top are fan shape, and surrounding wall thickness about equally.
Reserved three road prestress steel twist line grooves on described basic blocks outer ring surface, and on outer ring surface the steel stretching bed seat of pre-buried stretch-draw prestressing force.
8 basic blocks are to apply annular prestressed formation certain " hoop for barrel " effect by the steel strand in prestressing force groove, thereby composite assembly one-tenth.
The operating principle of the utility model column foot is: 8 basic blocks form certain " hoop for barrel " effect by annular prestressed applying, and each block combination is assembled into integral body.8 basic blocks are pushed mutually, under the effect of tower crane load, produce the frictional force between voussoir, thereby and tower crane load and subgrade reaction form balance, and then the load such as the tilting moment of opposing tower crane, horizontal force, horizontal moment of torsion.
The beneficial effects of the utility model are as follows:
Adopt this assembly type foundation for tower crane design scheme, its gross weight is less than conventional cast-in-place foundation for tower crane.At aspect of performance, precast concrete annular voussoir has and can reuse, the advantages such as fast assembling and disassembling and convenient transportation.
In addition, annular isotropism, while considering tower crane rotation, the most unfavorable processing condition may be compared the existing column foot forms such as square anisotropy Zhao Shi column foot in arbitrarily angled, has isotropic advantage.
Hoop voussoir column foot is whole firm on the one hand, floor space is little and relative contact area is large, there is identical effect with traditional cast-in-place basis, this kind of column foot has again the features such as reusable, fast assembling and disassembling, short construction period, convenient transportation, long service life, performance safety are reliable, remarkable in economical benefits on the other hand, from source, successfully solve conventional concrete basis waste resource, contaminated environment, time-consuming common fault of taking a lot of work, there is very large popularizing value.Therefore, the application of hoop voussoir column foot has very strong realistic meaning, for the development of construction technology, has huge impetus.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is annular wedge shape assembling-type precast piece tower crane plan view of the present utility model.
Fig. 2 is annular wedge shape assembling-type precast piece tower crane A-A sectional drawing of the present utility model.
Fig. 3 is bearing block plan view of the present utility model.
Fig. 4 is band prestressing bed bearing block plan view of the present utility model.
Fig. 5 is bearing block elevation of the present utility model.
Fig. 6 is non-bearing piece plan view of the present utility model.
Fig. 7 is band prestressing bed non-bearing piece plan view of the present utility model.
Fig. 8 is non-bearing piece elevation of the present utility model.
Number in the figure is: 1. bearing block, 2. band prestressing bed bearing block, 3. non-bearing piece, 4. band prestressing bed non-bearing piece, 5. prestressing force groove, 6. tower crane joint pre-embedded bolt, 7. prestressing bed, 8. tower crane joint.
The specific embodiment
Referring to accompanying drawing, a kind of annular voussoir Combined type concrete prefabricated piece tower crane, include 8 basic blocks, 8 basic blocks are respectively 3,2 band prestressing bed non-bearing pieces 4 of 2,2 non-bearing pieces of 1,2 band prestressing bed bearing blocks of 2 bearing blocks of alternately arranging, and each basic blocks lateral wall is 45 ° of sectors.Described bearing block 1 and band prestressing bed bearing block 2 bottoms are solid construction, and top is the local hollow structure cutting out, and basal surface contacts with ground, and upper surface portion is connected with top tower crane bearing by bolt; Described non-bearing piece 3 and band prestressing bed non-bearing piece 4 bottoms are solid construction, and top is the whole hollow structure cutting out, and basal surface contacts with ground, and upper surface is without load.Each basic blocks outer ring surface be 45 ° fan-shaped, reserved three road steel strand prestress grooves 5 on outer ring surface.8 basic blocks apply certain " hoop for barrel " effect of annular prestressed formation by the steel strand in prestressing force groove 5, thereby composite assembly becomes whole tower crane.
Concrete installation steps of the present utility model are as follows:
For conventional tower crane model, the block size of the good annular voussoir Combined type concrete prefabricated of designing and calculating piece tower crane in advance.Under batch production environment by voussoir precast block, through maintenance, try assembled after, classifying and numbering is deposited.The groove of reserved prestress wire on the outer ring surface of voussoir, and be provided with 4 prestressing bed basic blocks.
During on-the-spot use, according to the planar dimension of this prefabricated tower crane foundation, built plain concrete cushion layer in advance, guaranteed that bedding plane is smooth.Voussoir piecemeal is transported to job site, according to shown in Fig. 1 respectively by bearing block 1, band prestressing bed bearing block 2, non-bearing piece 3, band prestressing bed non-bearing piece 4 hoisted in position, steel strand are passed to prestressing bed 7 and prestressing force groove 5, stretching force tensioning fixation as requested, make each wedge block form integral body, and check that tower crane saves the plan-position of pre-embedded bolt 6, guarantees to meet the demands.Be assembled on whole precast combined concrete tower crane foundation, the members such as tower crane joint 8 and standard knot be installed according to conventional method and used.
After tower crane is finished using and removed, first carry out prestress wire and put, make to be combined into the state that whole tower crane becomes the loose combination of each voussoir again, more respectively each voussoir hoisting transportation is gone back to storeroom, or directly handling to next construction plant.

Claims (5)

1. an annular voussoir Combined type concrete prefabricated piece tower crane, it is characterized in that, include 8 basic blocks, 8 basic blocks are respectively 2 bearing blocks of alternately arranging, 2 band prestressing bed bearing blocks, 2 non-bearing pieces, 2 band prestressing bed non-bearing pieces, each basic blocks lateral wall is 45 ° of sectors, described bearing block and band prestressing bed bearing block bottom are solid construction, top is the local hollow structure cutting out, described non-bearing piece and band prestressing bed non-bearing piece bottom are solid construction, and top is the whole hollow structure cutting out.
2. annular voussoir Combined type concrete prefabricated piece tower crane according to claim 1, is characterized in that, described bearing block and band prestressing bed bearing block basal surface contact with ground, and upper surface solid section is connected with top tower crane bearing by bolt; Non-bearing piece and and band prestressing bed non-bearing piece only have basal surface to contact with ground, upper surface is without load.
3. annular voussoir Combined type concrete prefabricated piece tower crane according to claim 1, is characterized in that, described bearing block and the hollow structure cutting out with prestressing bed bearing block top are fan shape, and surrounding wall thickness about equally.
4. annular voussoir Combined type concrete prefabricated piece tower crane according to claim 1, is characterized in that, the reserved groove of placing three road prestress wires on described basic blocks outer ring surface, and on outer ring surface the steel stretching bed seat of pre-buried stretch-draw prestressing force.
5. annular voussoir Combined type concrete prefabricated piece tower crane according to claim 1, is characterized in that 8 basic blocks are to apply annular prestressed formation certain " hoop for barrel " effect by the steel strand in prestressing force groove, thereby composite assembly one-tenth.
CN201420226145.9U 2014-05-05 2014-05-05 Annular wedge block assembly type concrete precast block tower crane foundation Active CN203821428U (en)

Priority Applications (1)

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CN201420226145.9U CN203821428U (en) 2014-05-05 2014-05-05 Annular wedge block assembly type concrete precast block tower crane foundation

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Application Number Priority Date Filing Date Title
CN201420226145.9U CN203821428U (en) 2014-05-05 2014-05-05 Annular wedge block assembly type concrete precast block tower crane foundation

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CN203821428U true CN203821428U (en) 2014-09-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088291A (en) * 2014-05-05 2014-10-08 安徽三建工程有限公司 Annular wedge combined concrete precast block tower crane foundation
WO2016187720A1 (en) * 2015-05-26 2016-12-01 Anchor Concrete Products Ltd. Modular assembly for on-site fabrication of a structure
CN106906125A (en) * 2017-03-10 2017-06-30 恩威泰科环能股份有限公司 A kind of construction method of prefabricated board assembly fermentation tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104088291A (en) * 2014-05-05 2014-10-08 安徽三建工程有限公司 Annular wedge combined concrete precast block tower crane foundation
WO2016187720A1 (en) * 2015-05-26 2016-12-01 Anchor Concrete Products Ltd. Modular assembly for on-site fabrication of a structure
CN106906125A (en) * 2017-03-10 2017-06-30 恩威泰科环能股份有限公司 A kind of construction method of prefabricated board assembly fermentation tank

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