CN107893427A - A kind of prefabricated assembled cored slab column foundation for transmission line of electricity - Google Patents
A kind of prefabricated assembled cored slab column foundation for transmission line of electricity Download PDFInfo
- Publication number
- CN107893427A CN107893427A CN201711332582.3A CN201711332582A CN107893427A CN 107893427 A CN107893427 A CN 107893427A CN 201711332582 A CN201711332582 A CN 201711332582A CN 107893427 A CN107893427 A CN 107893427A
- Authority
- CN
- China
- Prior art keywords
- concrete
- transmission line
- prefabricated assembled
- cored slab
- column foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- 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
Abstract
A kind of prefabricated assembled cored slab column foundation for transmission line of electricity, including base and the supporting section that is connected on base；Described supporting section includes the pillar segment and hollow section from top to bottom set gradually, the top connection built-in fitting of pillar segment, base includes the middle part concrete beam being connected by ring flange with supporting section, at middle part, the long side both sides of concrete beam are arranged with outer concrete crossbeam in parallel, are fixed together between middle part concrete beam and outer concrete crossbeam by more concrete slabs be arrangeding in parallel.Pass through concrete-placing reinforcing steel bar cage, steel reinforcement cage and ring flange welding or mechanically coupled together among described pillar segment.From heavy and light, splicing component volume is small, saves cost of transportation and hoisting difficulty, reduces concrete material amount and dead load, structure design is more economical, and precast concrete shortens construction period, ensure that concrete quality on the basis of the present invention.
Description
Technical field
The present invention relates to work transmission line field, and in particular to a kind of prefabricated assembled cored slab for transmission line of electricity
Column foundation.
Background technology
It is increasing defeated with the development of regional economy construction along the Belt and Road and the propulsion of structure power channel
Electric line needs to pass through the excavation of foundation pit such as desert, Permafrost Area or concrete cast, the region of maintenance difficulty；While with
The raising of transmission line of electricity mechanized construction technical merit, the lifting of electricity power engineering constructive ability and the conversion of construction mode will
Ask, use prefabricated assembled basis in engineering construction more and more, these can be overcome by Rapid Excavation and backfill foundation ditch
The problem of Special section foundation ditch shapes or is difficult in maintenance, while concrete quality can be ensured, shorten construction period.
Therefore, precast concrete assembling type base is increasingly extensive in the application of transmission line of electricity, but with high-tension transmission
Engineering is built successively, and iron tower foundation active force is continuously increased, and precast concrete assembling type base size and deadweight also constantly increase
Add, so as to considerably increase the difficulty of transport, lifting, especially in the area having inconvenient traffic, execution conditions are severe, cost of transportation
High, the problem of difficulty of construction is big, has seriously constrained the promotion and application of precast concrete assembling type base.
Existing precast concrete assembled sheet-pile basis often uses solid concrete principal post, and bottom plate uses solid step
Formula or prismatic table shape concrete slab, can be related to following point：1. principal post uses solid concrete post, bottom plate uses solid concrete
Plate, concrete square amount is big, from great, and transport can consume very big resource.2. integrally formed prefabricated components volume is larger, transport
It is middle to be taken up too much space, reduce the efficiency of transport.3. the component larger, volume is larger of conducting oneself with dignity can increase the difficulty of lifting, together
The transport difficulty of heavy-duty hoisting equipment needed for Shi Zuoye also accordingly increases.4. prefabricated foundation can generally use high-performance coagulation
Soil, it is continuing with solid concrete sheet-pile and is designed without giving full play to its material property, cause the waste of material and cost.
The content of the invention
It is an object of the invention to for above-mentioned the problems of the prior art, there is provided a kind of prefabricated dress for transmission line of electricity
With formula cored slab column foundation, the basis has the characteristics of overall structure lightness, assembling members miniaturization, coagulation during use
Native user's amount is few, can effectively save material and integration engineering cost, cost of transportation is low, and easy for construction.
To achieve these goals, the technical solution adopted by the present invention is：
Including base and the supporting section being connected on base；What described supporting section included from top to bottom setting gradually stands
Shell of column and hollow section, the top connection built-in fitting of pillar segment, described base are included in being connected by ring flange with supporting section
Portion's concrete beam, at middle part, the long side both sides of concrete beam are arranged with outer concrete crossbeam in parallel, and middle part concrete is horizontal
It is fixed together between beam and outer concrete crossbeam by more concrete slabs be arrangeding in parallel.
One is welded or is mechanically connected to ring flange by concrete-placing reinforcing steel bar cage, steel reinforcement cage among described pillar segment
Rise.
Described steel reinforcement cage includes being vertically arranged some cage bars of one week, and cage bar is by stirrup outside ring with being bound round in ring
Muscle is tied up or welded together, and ring is outer to leave the gap equal with cage bar diameter between stirrup and stirrup in ring.
The strength grade of concrete used in the supporting section is not less than C30, and the intensity of cage bar is not less than HRB400.
The sectional area of the hollow section is about the 25%-50% of the sectional area of pillar segment.
The middle part concrete beam and outer concrete crossbeam are rectangular parallelepiped structure, and pillar segment is cylinder or prism
Structure.
Described supporting section is vertically arranged or is obliquely installed.
Described hollow section is using hollow-core construction or filling non-concrete material.
The thickness of thickness+concrete slab of distance >=middle part concrete beam at the top of hollow section bottom to ring flange.
Described middle part concrete beam and outer concrete crossbeam is bolted with concrete slab.
Described ring flange and bolt is made of anti-corrosion material, either prepared on surface anticorrosive coating surface layer or
The composite bed of brushing anticorrosive coating is protected again on spray, zinc coat.
Compared with prior art, the present invention has following beneficial effect：
Because supporting section includes pillar segment and hollow section, make support section concrete user amount it is small, from heavy and light, cost of transportation
It is greatly lowered, convenient lifting and construction.The middle part concrete beam of base and outer concrete crossbeam are by be arrangeding in parallel
More concrete slabs are fixed together, and the step or prismatic table shape concrete floor than routine save concrete about 20%-
40%, convenience in transport.The present invention uses prefabricated technique, conveniently digs soon soon fills out, in sand in the place of base pit engineering at the scene
The foundation ditches such as desert, ever-frozen ground shape or maintain difficult place rapid construction, reduce the open-assembly time of ever-frozen ground, are advantageous to apply
The industry that works and environmental protection, reduce security risk.Prepared using precast concrete, the quality of concrete can be ensured, avoided existing
The difficulty of casting concrete under the adverse circumstances of field, while the anti-corrosion of high-performance and strong concrete lifting basis can be used, prevent
Endurance quality and the load-carrying properties such as jelly.The present invention can save cost of transportation, concrete compared to common prefabricated assembled basis
Dosage and hoisting difficulty, in the communications and transportation area in hardship, cost about 5%~30% or so is saved, efficiency ratio is high, stock utilization
Height, economic benefit are obvious.
Further, supporting section of the present invention is vertically arranged or is obliquely installed, and the structure being obliquely installed can be in identical
Smaller horizontal loading and moment of flexure are born under load, makes hollow section structure stress more reasonable, so as to save the material usage of reinforcing bar.
Brief description of the drawings
The structural representation that Fig. 1 supporting sections of the present invention are vertically arranged；
The structural representation that Fig. 2 supporting sections of the present invention are obliquely installed；
The structural representation of Fig. 3 bases of the present invention；
The schematic cross-section of Fig. 4 column segment structures of the present invention；
In accompanying drawing：1- pillar segments；2- hollow sections；3- ring flanges；Concrete beam in the middle part of 4-；5- outer concrete crossbeams；
6- built-in fittings；7- concrete slabs；8- bolts；9- cage bars；The outer stirrup of 10- rings；Stirrup in 11- rings.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1-2, the present invention includes main body concrete structure in structure, main body concrete structure including pillar segment 1,
Hollow section 2, ring flange 3, middle part concrete beam 4, outer concrete crossbeam 5, built-in fitting 6, concrete slab 7, concrete knot
Steel reinforcement cage is provided with ring space inside structure, steel reinforcement cage is placed in pillar segment 1 and formed by concrete prefabricated, inside pillar segment 1
For hollow section 2, the sectional area of hollow section 2 is the 25%-50% of the sectional area of pillar segment 1, and ring flange 3 is welded with steel reinforcement cage or machine
Tool is connected, and middle part concrete beam 4 is connected with ring flange 3 by flange, and connection built-in fitting 6 is connected at the top of concrete structure.
Referring to Fig. 3, middle part concrete beam 4 and outer concrete crossbeam 5 are connected with concrete slab 7 by bolt 8.
Referring to Fig. 4, steel reinforcement cage is by being vertically arranged the cage bar 9 of one week and ring outer hoop for tying up or welding cage bar 9
Stirrup 11 forms in muscle 10 and ring.Pillar segment 1 is cylinder or prism structure, middle part concrete beam 4 and outside coagulation
Native crossbeam 5, concrete slab 7 are rectangular parallelepiped structure, and the distance at the bottom of hollow section 3 to the top of ring flange 3 is not less than middle part coagulation
The thickness of native crossbeam 4 adds the thickness of concrete slab 7, can hollow or filling non-concrete material in hollow section 3.
Referring to Fig. 4, basic outer wall and inwall middle part, strong concrete used in main body concrete structure are placed under steel reinforcement cage
Degree grade is not less than C30, and the intensity of cage bar 9 is not less than HRB400.
The assembling process of the prefabricated assembled cored slab column foundation of the present invention is as follows：
1. first according to key dimension, be supported section, ring flange 3, middle part concrete beam 4, outer concrete crossbeam 5,
Concrete slab 7 it is prefabricated, supporting section includes the pillar segment 1, hollow section 2 and the built-in fitting 6 that from top to bottom set gradually；
2. prefabricated components are transported to scene；
3. positioning concrete slab 7, middle part concrete beam 4, outer concrete crossbeam 5 are connected with concrete slab 7.
4. scene carries out excavation of foundation pit, and carries out Leveling and centering to the place after excavation.
5. lifting middle part concrete beam 4, the combined member of outer concrete crossbeam 5 and concrete slab 7.
6. the embedded bar of positioning middle part concrete beam 4, principal post section 1 and middle part concrete 4 are connected by ring flange 3
Connect.
7. backfilling of earthwork.
Note：It 3., 4. can also be overturned according to actual conditions process, can first carry out excavation of foundation pit, then lift the He of concrete slab 7
Middle part concrete beam 4, outer concrete crossbeam 5, are connected in foundation ditch by bolt 8.Meanwhile save process 5..
From heavy and light, splicing component volume is small, saves cost of transportation and hoisting difficulty, reduces coagulation on the basis of the present invention
Soil material amount and dead load, structure design are more economical.Precast concrete shortens construction period, ensure that concrete
Quality；The construction technology soon dug and fill out soon, reduces the base pit engineering difficulty and security risk of unfavorable foundation, and overall reduction engineering is made
Valency, add feasibility and application of the prefabricated assembled basis under have inconvenient traffic profit and complicated environmental condition.
Above example is merely to illustrate technical scheme rather than its limitations, and embodiment described herein is only
Only part of the embodiment of the invention, and not all embodiment.Although the present invention is carried out in detail with reference to above-described embodiment
Describe in detail bright, those of ordinary skill in the art still can modify to specific embodiments of the present invention or equally replace
Change, these are without departing from any modification of spirit and scope of the invention or equivalent substitution, and it is in the claim of the present invention
Within protection domain.
Claims (10)
- A kind of 1. prefabricated assembled cored slab column foundation for transmission line of electricity, it is characterised in that：Including base and it is connected to Supporting section on base；Described supporting section includes the pillar segment (1) and hollow section (2) from top to bottom set gradually, pillar segment (1) top connection built-in fitting (6), the middle part concrete that described base includes with supporting section being connected by ring flange (3) are horizontal Beam (4), at middle part, the long side both sides of concrete beam (4) are arranged with outer concrete crossbeam (5), middle part concrete beam in parallel (4) it is fixed together between outer concrete crossbeam (5) by more concrete slabs (7) be arrangeding in parallel.
- 2. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1, it is characterised in that：Described Pass through concrete-placing reinforcing steel bar cage, steel reinforcement cage and ring flange (3) welding or mechanically coupled together among pillar segment (1).
- 3. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 2, it is characterised in that：Steel reinforcement cage Some cage bars (9) including being vertically arranged one week, cage bar (9) are tied up by stirrup outside ring (10) and stirrup in ring (11) Or weld together, ring is outer to leave the gap equal with cage bar (9) diameter between stirrup (10) and stirrup in ring (11).
- 4. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 3, it is characterised in that：The branch The strength grade of concrete is not less than C30 used in support section, and the intensity of cage bar (9) is not less than HRB400.
- 5. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1, it is characterised in that：The sky The sectional area of heart section (2) is the 25%-50% of the sectional area of pillar segment (1).
- 6. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1, it is characterised in that：Mix at middle part It is rectangular parallelepiped structure to coagulate native crossbeam (4) with outer concrete crossbeam (5), and pillar segment (1) is cylinder or prism structure.
- 7. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1 or 6, it is characterised in that：Institute The supporting section stated is vertically arranged or is obliquely installed.
- 8. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1, it is characterised in that：Described Hollow section (2) is using hollow-core construction or filling non-concrete material.
- 9. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1, it is characterised in that：Hollow section (2) thickness of thickness+concrete slab (7) of the distance at the top of bottom to ring flange (3) >=middle part concrete beam (4).
- 10. it is used for the prefabricated assembled cored slab column foundation of transmission line of electricity according to claim 1, it is characterised in that：It is described Middle part concrete beam (4) and outer concrete crossbeam (5) be connected with concrete slab (7) by bolt (8)；Described ring flange (3) and bolt (8) is made of anti-corrosion material, or anticorrosive coating surface layer is prepared on surface, or The composite bed of brushing anticorrosive coating is protected person again on spray, zinc coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332582.3A CN107893427A (en) | 2017-12-13 | 2017-12-13 | A kind of prefabricated assembled cored slab column foundation for transmission line of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711332582.3A CN107893427A (en) | 2017-12-13 | 2017-12-13 | A kind of prefabricated assembled cored slab column foundation for transmission line of electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107893427A true CN107893427A (en) | 2018-04-10 |
Family
ID=61806338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711332582.3A Pending CN107893427A (en) | 2017-12-13 | 2017-12-13 | A kind of prefabricated assembled cored slab column foundation for transmission line of electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107893427A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267582A (en) * | 2018-09-17 | 2019-01-25 | 金华电力设计院有限公司 | Breathe out fragrant slot concrete slab assembling type base |
| CN109386007A (en) * | 2018-11-27 | 2019-02-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Assembled for transmission line of electricity bores column-sheet-pile composite foundation and its construction method |
| CN109537619A (en) * | 2018-11-26 | 2019-03-29 | 国网新疆电力有限公司建设分公司 | A kind of punching assembling type base for transmission line of electricity |
| CN113756357A (en) * | 2021-08-10 | 2021-12-07 | 山东电力工程咨询院有限公司 | Assembly type plate foundation adopting hollow bottom plate and method |
| CN114775674A (en) * | 2022-03-28 | 2022-07-22 | 国网新疆电力有限公司经济技术研究院 | Modularized eccentric assembly type foundation |
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| US9096985B1 (en) * | 2006-09-21 | 2015-08-04 | Ahmed Phuly | Foundation with slab, pedestal and ribs for columns and towers |
| CN201343738Y (en) * | 2008-11-20 | 2009-11-11 | 新疆电力设计院 | Prefabricated lath composite base |
| CN202117072U (en) * | 2011-06-08 | 2012-01-18 | 宁夏回族自治区电力设计院 | Assembled type base for power transmission line iron tower |
| CN103967035A (en) * | 2014-03-24 | 2014-08-06 | 梁东跃 | Batter post expansion plate type assembling foundation adopting weathering resistant steel for connection |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267582A (en) * | 2018-09-17 | 2019-01-25 | 金华电力设计院有限公司 | Breathe out fragrant slot concrete slab assembling type base |
| CN109537619A (en) * | 2018-11-26 | 2019-03-29 | 国网新疆电力有限公司建设分公司 | A kind of punching assembling type base for transmission line of electricity |
| CN109386007A (en) * | 2018-11-27 | 2019-02-26 | 中国电力工程顾问集团西北电力设计院有限公司 | Assembled for transmission line of electricity bores column-sheet-pile composite foundation and its construction method |
| CN113756357A (en) * | 2021-08-10 | 2021-12-07 | 山东电力工程咨询院有限公司 | Assembly type plate foundation adopting hollow bottom plate and method |
| CN114775674A (en) * | 2022-03-28 | 2022-07-22 | 国网新疆电力有限公司经济技术研究院 | Modularized eccentric assembly type foundation |
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