CN111663566A - Underground cylindrical reinforced concrete combined outer wall structure and construction method - Google Patents
Underground cylindrical reinforced concrete combined outer wall structure and construction method Download PDFInfo
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- CN111663566A CN111663566A CN202010550956.4A CN202010550956A CN111663566A CN 111663566 A CN111663566 A CN 111663566A CN 202010550956 A CN202010550956 A CN 202010550956A CN 111663566 A CN111663566 A CN 111663566A
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 116
- 239000010959 steel Substances 0.000 claims abstract description 116
- 239000004567 concrete Substances 0.000 claims abstract description 34
- 239000000835 fiber Substances 0.000 claims abstract description 17
- 238000003466 welding Methods 0.000 claims description 29
- 239000010410 layer Substances 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910000746 Structural steel Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 6
- 238000009415 formwork Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/06—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against corrosion by soil or water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8623—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic
- E04B2/8629—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic with both form leaves and spacers being monolithic
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- 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
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- 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)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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Abstract
The invention discloses an underground cylindrical reinforced concrete combined outer wall structure which comprises a steel structure inner wall cylinder, T-shaped main ribs, angle steel vertical ribs, annular steel plates, stud shear connectors and fiber concrete. The construction method is suitable for the construction of the sequential construction method structure, the structure with large diameter and high height is installed after being processed in a layered and blocking mode, the outer concrete is poured after the steel structure is installed, the inner wall cylinder plays a role of an inner template, and the inner wall cylinder and the outer wall concrete are integrated into a whole to form a permanent structure in the later period.
Description
Technical Field
The invention relates to the technical field of underground hydraulic construction, in particular to an underground cylindrical reinforced concrete combined outer wall structure and a construction method.
Background
The steel-concrete composite structure is a structural form developed on the basis of a steel structure and a concrete structure, gives full play to the mechanical property advantages of two materials, namely steel and concrete, and optimizes the structural design. By means of obvious technical economic benefits and social benefits, the steel-concrete composite structure is rapidly developed in the fields of bridges and house buildings, and various structural forms such as reinforced concrete columns, steel plate concrete composite beams, steel pipe concrete, steel reinforced concrete and the like are gradually applied to maturity, but the application to underground structures is still less.
The invention aims at the problems of high safety risk, complex construction environment and construction process and the like existing in the construction of a underground hydraulic structure by adopting a full-framing method and other traditional methods when the underground cylinder structure is higher in height, and particularly aims at the problems of small-diameter cylinder structures, difficult erection and later-period dismantling of a support, dense well wall reinforcing steel bars, inconvenient formwork installation and concrete pouring operation and low work efficiency, so that the construction method of the underground hydraulic structure becomes a great problem in the construction of the underground hydraulic structure.
Disclosure of Invention
In order to overcome the technical defects of high safety risk, complex construction environment and construction process and the like existing in the construction of traditional methods such as a full framing method and the like when the underground cylinder structure is high in height in the prior art, the invention provides an underground cylinder reinforced concrete combined outer wall structure and a construction method.
The invention realizes the aim by the following technical scheme, an underground cylindrical reinforced concrete combined outer wall structure comprises a cylindrical steel structure and a fiber concrete structure, wherein the cylindrical steel structure comprises a steel structure inner wall cylinder, a T-shaped main rib, an angle steel vertical rib, a circumferential steel plate and a stud shear connector, the steel structure inner wall cylinder adopts an inner side stainless steel outer side carbon structural steel composite steel plate, the stud shear connector is welded on the outer side of the steel structure inner wall cylinder and on two sides of a web plate and a flange plate of the T-shaped main rib, the angle steel vertical rib is welded on the outer side of the steel structure inner wall cylinder, the angle steel vertical rib and a cylindrical steel structural member are welded with the steel plate as local reinforcement, the circumferential steel plate is welded on the outer side of the steel structure inner wall cylinder in the horizontal direction and is welded with the angle steel vertical rib and the T-shaped main rib, the circumferential steel plate is arranged at the bottom of the cylindrical steel structure, the circumferential steel plate is pre-embedded before, the exterior wall concrete uses fiber concrete with good crack resistance.
The invention also provides a construction method of the underground cylindrical reinforced concrete combined outer wall structure, which comprises the following construction steps:
s1: according to construction site conditions and equipment hoisting capacity, a steel cylinder structure with higher height and larger diameter is reasonably layered and partitioned, then an inner wall cylinder of the steel structure is prefabricated in advance in a factory, a T-shaped main rib on the outer side of the steel cylinder is formed by welding two carbon structural steel plates, submerged arc welding is used for welding the T-shaped main rib, carbon dioxide protection welding is used for welding a vertical rib and a circumferential steel plate of angle steel, and 4 lifting rings are arranged at the top of the steel cylinder;
s2: welding a stud shear connector on the outer side of the steel structure cylinder main body and the T-shaped main rib, wherein a special stud welding machine is arranged for stud construction, and a stud welding gun is used for welding;
s3: after the single-layer steel structure is completely prefabricated and welded, constructing an anticorrosive coating on the carbon structural steel, transporting the prefabricated steel structure to the site by using a flat car, hoisting a first layer of steel structure by using hoisting equipment, welding and fixing the steel structure with a bottom circumferential steel plate after the steel structure is put in place, constructing the anticorrosive coating on the joint part, and pouring a first layer of back fiber concrete;
s4: pouring a first layer of outer wall fiber concrete, starting hoisting of a second layer of steel structure after the concrete strength reaches more than 5MPa, repeating the steps S3 and S4 until the whole structure construction is finished and the second layer of steel structure is hoisted, welding the second layer of steel structure with the first layer, pouring a second layer of fiber concrete, repeating the steps until the structure installation is finished
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects:
1. the invention relates to an underground cylindrical reinforced concrete combined outer wall structure which has the advantages of simple structure, good stress condition, short construction period, no increase of manufacturing cost, good durability and the like.
2. The construction method of the invention reduces the procedures of binding the reinforcing steel bars, erecting the support of the high formwork and installing the formwork by layered construction, greatly shortens the construction period of the open-cut smooth method construction of the underground cylindrical structure, and can be widely applied to the underground hydraulic buildings needing rapid construction.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view showing the overall structure of an underground cylindrical reinforced concrete composite outer wall structure according to the present invention;
FIG. 2 is a plan view of an underground cylindrical reinforced concrete composite exterior wall structure according to the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 2;
in the figure: the steel structure comprises 1-a steel structure inner wall cylinder, 2-T-shaped main ribs, 3-angle steel vertical ribs, 4-annular steel plates, 5-fiber concrete and 6-stud shear connectors.
Detailed Description
As shown in fig. 1 to 3, the schematic diagram of an underground cylindrical reinforced concrete composite external wall structure comprises two parts of a cylindrical steel structure and a fiber concrete structure, wherein the cylindrical steel structure comprises a steel structure inner wall cylinder 1, a T-shaped main rib 2, an angle steel vertical rib 3, a circumferential steel plate 4 and a stud shear connector 6, the steel structure inner wall cylinder 1 adopts an inner stainless steel outer side carbon structural steel composite steel plate, the stud shear connector 6 is welded at the outer side of the steel structure inner wall cylinder 1, a web plate of the T-shaped main rib 2 and two sides of a flange plate, the angle steel vertical rib 3 is welded at the outer side of the steel structure inner wall cylinder 1, the angle steel vertical rib 3 and the cylindrical steel structure are welded as local reinforcement, the circumferential steel plate 4 is welded at the outer side of the steel structure inner wall cylinder 1 in the horizontal direction and is welded with the angle steel vertical rib 3 and the T-shaped main rib 2, the circumferential steel plate 4 is arranged at the, and outer wall structure concrete is filled between the cylindrical steel structure and the foundation pit support structure, and the outer wall concrete is fiber concrete 5 with good crack resistance.
A construction method of an underground cylindrical reinforced concrete combined outer wall structure comprises the following construction steps:
the method comprises the following steps: according to construction site conditions and equipment hoisting capacity, a steel cylinder structure with higher height and larger diameter is reasonably layered and partitioned, then an inner wall cylinder 1 of the steel structure is prefabricated in advance in a factory, a T-shaped main rib 2 on the outer side of the steel cylinder is formed by welding two carbon steel plates, the T-shaped main rib 2 is welded by using submerged arc welding, an angle steel vertical rib 3 and a circumferential steel plate 4 are welded by carbon dioxide arc welding, and the top of the angle steel vertical rib is provided with 4 hoisting rings;
step two: welding a stud shear connector 6 on the outer side of the steel structure cylinder main body and the T-shaped main rib 2, wherein a special stud welding machine is arranged for stud construction, and a stud welding gun is used for welding;
step three: after the single-layer steel structure is completely prefabricated and welded, constructing an anti-corrosion coating on the carbon structural steel, transporting the prefabricated steel structure to the site by using a flat car, hoisting a first layer of steel structure by using hoisting equipment, welding and fixing the steel structure with a bottom circumferential steel plate 4 after the steel structure is put in place, constructing an anti-corrosion coating on a joint part, and pouring a first layer of back fiber concrete 5;
step four: and pouring a first layer of outer wall fiber concrete 5, starting hoisting of the second layer of steel structure after the concrete strength reaches more than 5MPa, repeating the third step and the fourth step until the whole structure construction is finished and the second layer of steel structure is hoisted, welding the second layer of steel structure with the first layer, pouring a second layer of fiber concrete 5, and repeating the steps until the structure installation is finished.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. An underground cylindrical reinforced concrete combined outer wall structure comprises a cylindrical steel structure and a fiber concrete structure, and is characterized in that,
the cylinder steel structure comprises a steel structure inner wall cylinder (1), T-shaped main ribs (2), angle steel vertical ribs (3), hoop steel plates (4) and stud shear connectors (6), wherein the steel structure inner wall cylinder (1) adopts an inner side stainless steel outer side carbon structural steel composite steel plate, the outer side of the steel structure inner wall cylinder (1) and webs of the T-shaped main ribs (2) and the two sides of flange plates are welded with the stud shear connectors (6), the angle steel vertical ribs (3) are welded on the outer side of the steel structure inner wall cylinder (1), the angle steel vertical ribs (3) and the cylinder steel structural part are welded with the steel plates as local reinforcements, the hoop steel plates (4) are welded on the outer side of the steel structure inner wall cylinder (1) in the horizontal direction and are welded with the angle steel vertical ribs (3) and the T-shaped main ribs (2), the hoop steel plates (4) are arranged at the bottom of the cylinder steel structure, and the hoop, and outer wall structure concrete is filled between the cylindrical steel structure and the foundation pit support structure, and the outer wall concrete is fiber concrete (5) with good crack resistance.
2. A construction method of an underground cylindrical reinforced concrete combined outer wall structure is characterized by comprising the following steps: the construction method comprises the following construction steps:
s1: according to construction site conditions and equipment hoisting capacity, a steel cylinder structure with higher height and larger diameter is reasonably layered and partitioned, then an inner wall cylinder (1) of the steel structure is prefabricated in advance in a factory, a T-shaped main rib (2) on the outer side of the steel cylinder is formed by welding two carbon structural steel plates, submerged arc welding is used for welding the T-shaped main rib (2), a vertical angle steel rib (3) and a circumferential steel plate (4) are welded to form carbon dioxide arc welding, and four hoisting rings are arranged at the top of the steel cylinder structure;
s2: welding a stud shear connector (6) on the outer side of the steel structure cylinder main body and the T-shaped main rib (2), and performing stud construction by using a stud welding gun through a special stud welding machine;
s3: after the single-layer steel structures are completely prefabricated and welded, constructing an anti-corrosion coating on the carbon structural steel, transporting the prefabricated steel structures to the site by using a flat car, hoisting a first layer of steel structures by using hoisting equipment, putting the steel structures in place, welding and fixing the steel structures with a bottom annular steel plate (4), constructing an anti-corrosion coating on a joint part, and pouring a first layer of back fiber concrete (5);
s4: and (3) pouring a first layer of outer wall fiber concrete (5), starting hoisting of a second layer of steel structure after the concrete strength reaches more than 5MPa, repeating the steps S3 and S4 until the whole structure construction is finished and the second layer of steel structure is hoisted, welding the second layer of steel structure with the first layer, pouring a second layer of fiber concrete (5), and repeating the steps until the structure installation is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010550956.4A CN111663566A (en) | 2020-06-17 | 2020-06-17 | Underground cylindrical reinforced concrete combined outer wall structure and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010550956.4A CN111663566A (en) | 2020-06-17 | 2020-06-17 | Underground cylindrical reinforced concrete combined outer wall structure and construction method |
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| CN111663566A true CN111663566A (en) | 2020-09-15 |
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| CN202010550956.4A Pending CN111663566A (en) | 2020-06-17 | 2020-06-17 | Underground cylindrical reinforced concrete combined outer wall structure and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576950A (en) * | 2020-04-09 | 2020-08-25 | 中核能源科技有限公司 | Reactor single-layer containment vessel and construction method thereof |
| CN114592739A (en) * | 2022-03-22 | 2022-06-07 | 辽宁省城乡市政工程集团有限责任公司 | Semi-assembly type ultra-deep superposed water storage tank and construction process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509295A (en) * | 2008-10-07 | 2009-08-19 | 百安力钢结构应用科技有限公司 | Fibre concrete-profiled steel sheet combination floor |
| CN204212286U (en) * | 2014-11-03 | 2015-03-18 | 中建八局第一建设有限公司 | A kind of reinforced steel plate-concrete combined shear wall with ribbing |
| CN106703028A (en) * | 2016-11-22 | 2017-05-24 | 重庆建工第九建设有限公司 | Large-diameter manual hole digging pile prefabricated assembly type steel guard wall and construction technology thereof |
| CN212866048U (en) * | 2020-06-17 | 2021-04-02 | 中建三局基础设施建设投资有限公司 | Underground cylinder reinforced concrete combined outer wall structure |
-
2020
- 2020-06-17 CN CN202010550956.4A patent/CN111663566A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509295A (en) * | 2008-10-07 | 2009-08-19 | 百安力钢结构应用科技有限公司 | Fibre concrete-profiled steel sheet combination floor |
| CN204212286U (en) * | 2014-11-03 | 2015-03-18 | 中建八局第一建设有限公司 | A kind of reinforced steel plate-concrete combined shear wall with ribbing |
| CN106703028A (en) * | 2016-11-22 | 2017-05-24 | 重庆建工第九建设有限公司 | Large-diameter manual hole digging pile prefabricated assembly type steel guard wall and construction technology thereof |
| CN212866048U (en) * | 2020-06-17 | 2021-04-02 | 中建三局基础设施建设投资有限公司 | Underground cylinder reinforced concrete combined outer wall structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576950A (en) * | 2020-04-09 | 2020-08-25 | 中核能源科技有限公司 | Reactor single-layer containment vessel and construction method thereof |
| CN114592739A (en) * | 2022-03-22 | 2022-06-07 | 辽宁省城乡市政工程集团有限责任公司 | Semi-assembly type ultra-deep superposed water storage tank and construction process |
| CN114592739B (en) * | 2022-03-22 | 2024-04-26 | 辽宁省城乡市政工程集团有限责任公司 | Semi-assembled ultra-deep superposed water storage tank and construction process |
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