CN111894031B - Tower crane foundation and construction method thereof - Google Patents

Tower crane foundation and construction method thereof Download PDF

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Publication number
CN111894031B
CN111894031B CN202010794259.3A CN202010794259A CN111894031B CN 111894031 B CN111894031 B CN 111894031B CN 202010794259 A CN202010794259 A CN 202010794259A CN 111894031 B CN111894031 B CN 111894031B
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tower crane
bottom plate
foundation
layer
embedded
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CN111894031A (en
Inventor
武念铎
范玮武
董俊杰
王刚
雷克
白洁
许诺
王欣
余少乐
黄青隆
许国文
叶庭
李赟
吴光辉
吕婷
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China Construction Eighth Engineering Division Co Ltd
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China Construction Eighth Engineering Division Co Ltd
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
    • E04B1/4114—Elements with sockets
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Foundations (AREA)

Abstract

The invention relates to a tower crane foundation and a construction method thereof, wherein the tower crane foundation is connected to a bottom plate and a frame beam of a basement, and comprises: the drawknot is fixed on the base plate of the basement and corresponds to the foundation layer of the position to be installed of the tower crane; the bottom of the embedded part is arranged on the bottom plate, and the top of the embedded part protrudes out of the base layer to form an installation part for connecting a transition joint of the tower crane; the supporting columns are vertically supported between the foundation layer and the corresponding frame beams, the bottom ends of the supporting columns are fixedly connected with the foundation layer in a detachable mode, and the top ends of the supporting columns are fixedly connected with the corresponding frame beams in a detachable mode. The foundation layer is connected with the bottom plate through the embedded ribs embedded into the bottom plate, so that the firmness and the stability of the drawknot connection of the foundation layer and the bottom plate are ensured. The pile is not needed to be driven on the bottom plate, namely the basement bottom plate is not damaged. The tower crane transmits the pulling force to the foundation layer, the part of the tower crane is transmitted to the bottom plate by the embedded bars, the part of the tower crane is transmitted to the frame beam by the supporting columns, and the force transmission is stable so as to ensure the stable structure.

Description

Tower crane foundation and construction method thereof
Technical Field
The invention relates to the field of building construction, in particular to a tower crane foundation and a construction method thereof.
Background
The wind load that super high-rise tower hung and bore, its goods and materials that lift up in work all can lead to its bottom to bear great moment of flexure, and then lead to the tower crane montant to bear great pulling force. The tower crane vertical rod can transmit the pulling force to the tower crane foundation, so that the tower crane foundation needs to have certain anti-pulling capacity.
In the prior art, a large-volume or reinforced concrete structure with a uplift pile is generally adopted as a tower crane foundation so as to utilize the uplift pile and dead weight to resist uplift.
However, when a tower crane is added in the super high-rise skirt house, a large-volume reinforced concrete structure cannot be adopted due to small construction space; if the reinforced concrete structure with the uplift pile is adopted, the basement bottom plate can be damaged by piling on the poured basement bottom plate, and after the tower crane is dismantled, the damaged part of the basement bottom plate is repaired, so that the workload is large.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a tower crane foundation and a construction method thereof, and solves the problems that the basement bottom plate is damaged when a small construction space is formed on a poured basement bottom plate and the repair workload for the damaged part is large after a tower crane is dismantled in the prior art.
The technical scheme for realizing the purpose is as follows:
the invention provides a tower crane foundation which is connected with a bottom plate and a frame beam of a basement, and comprises:
the drawknot is fixed on the base plate of the basement and corresponds to the foundation layer of the position to be installed of the tower crane;
the embedded part is embedded in the foundation layer in advance, the bottom of the embedded part is arranged on the bottom plate, and the top of the embedded part protrudes out of the foundation layer to form an installation part for connecting a transition joint of the tower crane; and
the supporting column is vertically supported between the base layer and the corresponding frame beam, the bottom end of the supporting column is fixedly connected with the base layer in a detachable mode, and the top end of the supporting column is fixedly connected with the corresponding frame beam in a detachable mode.
The tower crane foundation is further improved in that the number of the support columns is multiple, and the support columns are arranged around the transition section of the tower crane in an enclosing mode.
The tower crane foundation is further improved in that the tower crane foundation further comprises a plurality of planting ribs which are implanted into the bottom plate and the tops of which protrude out of the bottom plate.
The tower crane foundation is further improved in that the foundation layer is a reinforced concrete structure which is poured on the bottom plate and is fixed by a plurality of embedded bars and the bottom plate in a pulling mode.
The tower crane foundation is further improved in that the embedded part comprises:
the split heads are vertically arranged on the bottom plate; and
be fixed in lower margin on the split heads, the protruding stretch out in top of lower margin the basic layer forms the installation department that supplies the tower crane transition section to connect.
The tower crane foundation is further improved in that the embedded parts are multiple, and the embedded parts and the vertical rods of the tower crane transition section are correspondingly arranged.
The tower crane foundation of the invention is further improved in that,
the bottom of the supporting column is fixedly connected with the foundation layer through a first expansion bolt;
the top of the support column is fixedly connected with the frame beam through a second expansion bolt.
The invention also provides a construction method of the tower crane foundation, which comprises the following steps:
constructing a base layer which corresponds to the position to be installed of the tower crane and is fixed with the base plate in a drawknot manner on the base plate of the basement;
providing an embedded part, pre-embedding the embedded part in the foundation layer in the process of constructing the foundation layer, arranging the bottom of the embedded part on the bottom plate, and protruding the top of the embedded part out of the foundation layer to form an installation part for connecting a tower crane transition joint; and
providing a support column, vertically supporting the support column between the base layer and the corresponding frame beam, fixedly connecting the bottom end of the support column with the base layer in a detachable mode, and fixedly connecting the top end of the support column with the corresponding frame beam in a detachable mode.
The construction method of the tower crane foundation is further improved in that,
and providing a plurality of support columns, and enclosing the support columns around the transition section of the tower crane.
The construction method of the tower crane foundation is further improved in that,
the construction forms the base course that corresponds to treating the mounted position of tower crane and with the bottom plate drawknot is fixed on the bottom plate of basement, include:
providing a plurality of planting bars, planting the planting bars into the bottom plate, wherein the tops of the planting bars protrude out of the bottom plate;
binding a steel bar framework on the bottom plate; and
and pouring concrete covering the steel reinforcement framework and the embedded bars on the bottom plate to form a reinforced concrete structure which is fixedly tied with the bottom plate.
The tower crane foundation and the construction method thereof have the beneficial effects that:
according to the invention, the foundation layer is poured on the bottom plate of the basement, and the foundation layer is connected with the bottom plate through the embedded bars embedded into the bottom plate, so that the firmness and stability of the tie connection between the foundation layer and the bottom plate are ensured. The pile is not needed to be driven on the bottom plate, namely the basement bottom plate is not damaged. The tower crane is fixedly connected with the foundation layer through the embedded parts, the frame beams of the bottom plate and the basement are connected around the tower crane through the support columns, the pulling force of the foundation layer is transmitted to the tower crane through the vertical rods, the part of the pulling force is transmitted to the bottom plate of the tower by the embedded bars, the part of the pulling force is transmitted to the frame beams of the basement by the support columns, and the force is transmitted stably to ensure the stable structure. The construction is simple and efficient.
Drawings
Fig. 1 to 4 are schematic diagrams of construction steps of the tower crane foundation and the construction method thereof.
Fig. 5 is a cross-sectional view a-a of fig. 4.
Fig. 6 is a sectional view of B-B of fig. 4.
FIG. 7 is a schematic view of a steel reinforcement framework of the tower crane foundation and the construction method thereof.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1 to 4, schematic construction steps of the tower crane foundation and the construction method thereof are shown. Referring to fig. 1 to 4, the tower crane foundation of the present invention is connected to a base plate 10 and a frame beam 20 of a basement, and includes:
the foundation layer 30 is fixed on the bottom plate 10 of the basement in a pulling mode and corresponds to the position, to be installed, of the tower crane;
the embedded part 40 is embedded in the base layer 30, the bottom of the embedded part 40 is arranged on the bottom plate 10, and the top of the embedded part 40 protrudes out of the base layer 30 to form an installation part for connecting a transition joint 50 of the tower crane; and
and the support columns 60 are vertically supported between the base layer 30 and the corresponding frame beams 20, the bottom ends of the support columns 60 are fixedly connected with the base layer 30 in a detachable mode, and the top ends of the support columns 60 are fixedly connected with the corresponding frame beams 20 in a detachable mode.
As a preferred embodiment of the tower crane foundation of the present invention, reference is made to FIG. 5, which is a cross-sectional view taken along line A-A of FIG. 4. Fig. 6 is a sectional view of B-B of fig. 4. Referring to fig. 1 to 6, there are a plurality of support columns 60, and a plurality of support columns 60 surround tower crane transition section 50.
Enclose all around and the symmetry setting of locating tower crane transition section 50 through a plurality of support columns 60 to evenly transmit the atress on foundation layer for each frame roof beam 20 of basement through support column 60, guarantee stable in structure.
Specifically, the tower crane transmits the pulling force of the foundation layer through the vertical rod, the part of the tower crane is transmitted to the bottom plate 10 of the tower by the bar planting 11, and the part of the tower crane is supported by the I-shaped steel support column and transmitted to the frame beam 20 of the basement, so that the stable structure is ensured. The pile is not needed to be driven on the bottom plate, namely the basement bottom plate is not damaged. The construction is simple and efficient.
As a preferred embodiment of the tower crane foundation of the invention, the tower crane further comprises a plurality of planting bars 11 which are implanted into the bottom plate 10 and the tops of which protrude out of the bottom plate 10.
As a preferred embodiment of the tower crane foundation of the present invention, refer to fig. 7, which is a schematic diagram of a steel reinforcement framework of the tower crane foundation and the construction method thereof of the present invention. Referring to fig. 1 to 7, the foundation layer 30 is a reinforced concrete structure that is cast on the bottom plate 10 and is fixed to the bottom plate 10 by a plurality of planting bars 11.
In particular, in the construction of a tower, the bottom plate 10 is a raft. When arranging the tower crane in the narrow and small super high-rise skirt room in construction site, implant a plurality of reinforcing bars as planting the muscle 11 in the bottom plate at first vertical interval, the protruding bottom plate that stretches out in the top of planting muscle 11 is used for the anchor in the foundation layer of follow-up pouring to it is fixed to make foundation layer and bottom plate 10 through the 11 drawties of planting the muscle.
The reinforced concrete structure comprises a steel reinforcement framework 31 and concrete which is poured on the bottom plate 10 and covers the steel reinforcement framework 31. Wherein, framework 31 includes: the lower longitudinal steel bars and the lower transverse steel bars are bound on the bottom plate; and the upper longitudinal steel bars and the upper transverse steel bars are connected with the lower longitudinal steel bars and the lower transverse steel bars through the vertical tie bars.
As a preferred embodiment of the tower crane foundation of the present invention, the embedded part 40 includes: a stool 41 erected on the base plate 10; and the ground feet 42 are fixed on the split heads 41, and the tops of the ground feet 42 protrude out of the base layer 30 to form a mounting part for connecting the tower crane transition joint 50.
Specifically, the split heads 41 are brackets bound by steel bars and used for supporting and fixing the anchor pins 42. The anchor 42 comprises a steel plate fixed to the top of the stool 41 and a sleeve fixed to the steel plate. The transition section of the tower crane comprises four vertical upright rods, and a cross rod and an oblique rod which are connected with the four upright rods. The vertical rods of the tower crane transition sections 50 are inserted into the corresponding sleeves of the ground feet 42 to be fixedly connected with the ground feet 42.
As a preferred embodiment of the tower crane foundation of the invention, a plurality of embedded parts 40 are provided, and a plurality of embedded parts 40 and a plurality of vertical rods 51 of the tower crane transition section 50 are correspondingly arranged.
As a preferred embodiment of the tower crane foundation of the present invention, the bottom of the supporting column 60 is fixedly connected to the foundation layer 30 by the first expansion bolts 61; the top of the support column 60 is fixedly connected to the frame beam 20 by a second expansion bolt 62.
Specifically, the support column 60 is an i-beam, and steel plates are fixed to both ends of the i-beam. Fixedly connecting a first expansion bolt 61 with the base layer 30 by penetrating through the steel plate at the bottom of the support column 60; and a second expansion bolt 62 is fixedly connected with the frame beam 20 by penetrating through the steel plate at the top of the support column 60.
The invention also provides a construction method of the tower crane foundation, which comprises the following steps:
constructing a foundation layer 30 which corresponds to the position to be installed of the tower crane and is fixedly connected with the bottom plate 10 on the bottom plate 10 of the basement;
providing an embedded part 40, embedding the embedded part 40 in the foundation layer 30 in the process of constructing the foundation layer 30, arranging the bottom of the embedded part 40 on the bottom plate 10, and protruding the foundation layer 30 from the top of the embedded part 40 to form an installation part for connecting a tower crane transition joint 50; and
providing the supporting columns 60, vertically supporting the supporting columns 60 between the base layer 30 and the corresponding frame beams 20, detachably and fixedly connecting the bottom ends of the supporting columns 60 with the base layer 30, and detachably and fixedly connecting the top ends of the supporting columns 60 with the corresponding frame beams 20.
As a preferred embodiment of the construction method of the tower crane foundation of the present invention, a plurality of support columns 60 are provided, and the plurality of support columns 60 are arranged around the tower crane transition section 50.
As a preferred embodiment of the method for constructing a tower crane foundation of the present invention, a foundation layer 30 is constructed and formed on a bottom plate 10 of a basement, which corresponds to a position to be installed of a tower crane and is fixed to the bottom plate 10 by pulling, and the method includes: providing a plurality of embedded bars 11, implanting the plurality of embedded bars 11 into the bottom plate 10, and protruding out of the bottom plate 10 from the top; binding a steel reinforcement framework 31 on the bottom plate 10; and pouring concrete covering the steel reinforcement framework 31 and the embedded bars 11 on the bottom plate 10 to form a reinforced concrete structure which is fixedly connected with the bottom plate 10 in a pulling mode.
Specifically, a plurality of steel bars are implanted on a raft plate of a basement of a tower as implanted steel bars, and the implanted steel bars are subjected to a drawing test to ensure that the implanted steel bars are firmly anchored;
binding the lower longitudinal and transverse steel bars of the steel bar framework on the raft;
positioning and mounting four split heads on the raft, fixing feet on the split heads, and enabling the four split heads and the feet to correspond to vertical rods of positions to be mounted of a transition section of the tower crane one by one;
binding vertical tie bars and upper longitudinal and transverse steel bars on the raft plate so as to connect the raft plate with the lower longitudinal and transverse steel bars to form a steel bar framework;
erecting a template on the raft, pouring concrete in a space enclosed by the template to cover the reinforced skeleton, and maintaining for 10 days to ensure that the concrete reaches 80% of standard strength to form a reinforced concrete structure;
providing four I-steel support columns with connecting steel plates at two ends, positioning and installing the I-steel support columns on a foundation layer, positioning the four I-steel support columns around a tower crane, and fixedly connecting the connecting steel plates at the top and the bottom of the support columns with a frame beam and the foundation layer respectively through expansion bolts.
The tower crane foundation and the construction method thereof have the beneficial effects that:
according to the invention, the foundation layer is poured on the bottom plate of the basement, and the foundation layer is connected with the bottom plate through the embedded bars embedded into the bottom plate, so that the firmness and stability of the tie connection between the foundation layer and the bottom plate are ensured. The pile is not needed to be driven on the bottom plate, namely the basement bottom plate is not damaged. The tower crane is fixedly connected with the foundation layer through the embedded parts, the frame beams of the bottom plate and the basement are connected around the tower crane through the support columns, the pulling force of the foundation layer is transmitted to the tower crane through the vertical rods, the part of the pulling force is transmitted to the bottom plate of the tower by the embedded bars, the part of the pulling force is transmitted to the frame beams of the basement by the support columns, and the force is transmitted stably to ensure the stable structure. The construction is simple and efficient.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.

Claims (10)

1. The utility model provides a tower crane foundation connects in basement's bottom plate and frame roof beam, its characterized in that, tower crane foundation includes:
the drawknot is fixed on the base plate of the basement and corresponds to the foundation layer of the position to be installed of the tower crane;
the embedded part is embedded in the foundation layer in advance, the bottom of the embedded part is arranged on the bottom plate, and the top of the embedded part protrudes out of the foundation layer to form an installation part for connecting a transition joint of the tower crane; and
the supporting column is vertically supported between the base layer and the corresponding frame beam, the bottom end of the supporting column is fixedly connected with the base layer in a detachable mode, and the top end of the supporting column is fixedly connected with the corresponding frame beam in a detachable mode.
2. The tower crane foundation of claim 1, wherein there are a plurality of said support columns, and a plurality of said support columns surround said tower crane transition section.
3. The tower crane foundation of claim 1, further comprising a plurality of planting bars embedded in the bottom plate and having tops protruding out of the bottom plate.
4. The tower crane foundation of claim 3,
the foundation layer is a reinforced concrete structure which is poured on the bottom plate and is fixed with the bottom plate through a plurality of embedded bars.
5. The tower crane foundation of claim 1, wherein the embedment comprises:
the split heads are vertically arranged on the bottom plate; and
be fixed in lower margin on the split heads, the protruding stretch out in top of lower margin the basic layer forms the installation department that supplies the tower crane transition section to connect.
6. The tower crane foundation of claim 1,
the embedded part has a plurality ofly, and is a plurality of the embedded part with a plurality of montants of tower crane transition section correspond the setting.
7. The tower crane foundation of claim 1,
the bottom of the supporting column is fixedly connected with the foundation layer through a first expansion bolt;
the top of the support column is fixedly connected with the frame beam through a second expansion bolt.
8. A construction method of a tower crane foundation is characterized by comprising the following steps:
constructing a base layer which corresponds to the position to be installed of the tower crane and is fixed with the base plate in a drawknot manner on the base plate of the basement;
providing an embedded part, pre-embedding the embedded part in the foundation layer in the process of constructing the foundation layer, arranging the bottom of the embedded part on the bottom plate, and protruding the top of the embedded part out of the foundation layer to form an installation part for connecting a tower crane transition joint; and
providing a support column, vertically supporting the support column between the base layer and the corresponding frame beam, fixedly connecting the bottom end of the support column with the base layer in a detachable mode, and fixedly connecting the top end of the support column with the corresponding frame beam in a detachable mode.
9. The construction method of the tower crane foundation of claim 8, wherein,
and providing a plurality of support columns, and enclosing the support columns around the transition section of the tower crane.
10. The construction method of the tower crane foundation of claim 8, wherein,
the construction forms the position of treating the mounted position corresponding to the tower crane on the bottom plate of basement, and with the fixed basal layer of bottom plate drawknot includes:
providing a plurality of planting bars, planting the planting bars into the bottom plate, wherein the tops of the planting bars protrude out of the bottom plate;
binding a steel bar framework on the bottom plate; and
and pouring concrete covering the steel reinforcement framework and the embedded bars on the bottom plate to form a reinforced concrete structure which is fixedly tied with the bottom plate.
CN202010794259.3A 2020-08-10 2020-08-10 Tower crane foundation and construction method thereof Active CN111894031B (en)

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Application Number Priority Date Filing Date Title
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050080018A (en) * 2005-07-01 2005-08-11 (주)씨에스티개발 Structure of basement pile for building
DE202008017902U1 (en) * 2008-07-09 2011-02-10 Leonhard Weiss Gmbh & Co. Kg mast foundations
CN103967040B (en) * 2014-05-19 2015-12-02 中国建筑第八工程局有限公司 Tower-crane foundation structure and construction method thereof
CN105002923B (en) * 2015-08-03 2017-07-11 上海建工五建集团有限公司 Embedded tower crane and its form of construction work
CN105649103B (en) * 2016-03-24 2017-12-15 广西建工集团第五建筑工程有限责任公司 Pile-beam structure integrated tower crane foundation structure and construction method thereof
CN106759440B (en) * 2016-12-27 2019-07-09 中国铁塔股份有限公司盐城市分公司 Foundation of iron tower screw bolt reinforcing method
CN208056094U (en) * 2018-03-26 2018-11-06 中建八局第三建设有限公司 A kind of support system of the tower crane of ceiling plate located underground

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