CN112746704A - Arch type steel-concrete combined ceiling structure of large-span giant underground workshop and construction method - Google Patents
Arch type steel-concrete combined ceiling structure of large-span giant underground workshop and construction method Download PDFInfo
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- CN112746704A CN112746704A CN202011634728.1A CN202011634728A CN112746704A CN 112746704 A CN112746704 A CN 112746704A CN 202011634728 A CN202011634728 A CN 202011634728A CN 112746704 A CN112746704 A CN 112746704A
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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
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
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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
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/32—Arched structures; Vaulted structures; Folded structures
- E04B1/3205—Structures with a longitudinal horizontal axis, e.g. cylindrical or prismatic structures
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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
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/30—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation characterised by edge details of the ceiling; e.g. securing to an adjacent wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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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
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- 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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Abstract
The invention discloses an arch type steel-concrete combined ceiling structure of a large-span giant underground workshop and a construction method, which absorb the advantages of a steel structure and a concrete structure, have the advantages of strong bearing capacity, strong corrosion resistance, good fireproof performance and the like, are quick to install and convenient to construct, and the installed steel structure is also used as a template for pouring concrete without binding reinforcing steel bars, so that the construction interference is small, the efficiency is high, and the construction period is short. Its structure includes furred ceiling braced system, furred ceiling arched beam and furred ceiling bottom plate, and the furred ceiling arched beam erects and fixes through furred ceiling braced system, the furred ceiling braced system includes by setting up in upper and lower trip both sides furred ceiling support column, furred ceiling stock and extension pull rod, and the top of furred ceiling support column is erect at the both ends of furred ceiling arched beam, the furred ceiling rock mass is gone into in the top anchor of furred ceiling stock, connects furred ceiling stock and furred ceiling arched beam respectively at extension pull rod both ends, and furred ceiling bottom plate lays in furr.
Description
Technical Field
The invention relates to a suspended ceiling structure suitable for an underground workshop and the technical field of construction thereof, in particular to an arch type steel-concrete combined suspended ceiling structure of a large-span giant underground workshop and a construction process thereof.
Background
The suspended ceiling structure has been arranged between secret factory building crown arch cliff and the operation layer, and the furred ceiling effect mainly includes: ventilating layer: arranging wind pipes or dividing the wind pipes into wind channels; waterproof layer: the water seepage of the top arch rock wall is prevented from directly dripping into the equipment layer of the main factory building, and the normal operation of the unit is prevented from being influenced; decorating layer: covering the uneven top arch spraying layer surface. The common method for the suspended ceiling structure of the underground factory building comprises the following steps: a triangular steel net rack: the construction is rapid and convenient, the bearing capacity is limited, the size is relatively large, the corrosion resistance is poor, the fire resistance is poor, and the later maintenance cost is large; secondly, a decorative ceiling plate is added on the light steel beam: the construction is rapid and convenient, the light ceiling plate is a weak stress part, the steel beam is relatively large in size, poor in corrosion resistance and fire resistance, and the later maintenance cost is high; thirdly, erecting a mould to cast the concrete plate beam in situ: the scaffold has the advantages of strong bearing capacity, small size, strong corrosion resistance, good fireproof performance, low construction efficiency, long construction period and large interference on other process constructions due to the fact that the scaffold needs to be erected and poured.
Disclosure of Invention
The invention aims to overcome the defects of the technical scheme of the suspended ceiling structure of the underground workshop in the technology to be solved, and provides the arch type steel-concrete combined suspended ceiling structure of the large-span giant underground workshop and the construction method, wherein the arch type steel-concrete combined suspended ceiling structure has the advantages of strong bearing capacity, strong corrosion resistance, good fireproof performance, quickness in installation and convenience in construction.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an arched steel concrete combined ceiling structure of a large-span giant underground workshop, which comprises a ceiling supporting system, a ceiling arched beam and a ceiling bottom plate, wherein the ceiling arched beam is erected and fixed through the ceiling supporting system, the ceiling supporting system comprises ceiling supporting columns arranged on two sides of the upstream and downstream, ceiling anchor rods and extension pull rods, two ends of the ceiling arched beam are erected at the tops of the ceiling supporting columns, the top ends of the ceiling anchor rods are anchored into ceiling arched rock bodies, two ends of the extension pull rods are respectively connected with the ceiling anchor rods and the ceiling arched beam, and the ceiling bottom plate is laid above the ceiling arched beam.
Preferably, the top of the suspended ceiling bottom plate is provided with an air-conditioning water pipe steel platform, an equipment foundation and steps.
Preferably, the ceiling supporting columns are arranged along the side walls of the factory building, and the dowel bars are arranged between the ceiling supporting columns and the side walls.
Preferably, a row of reinforced concrete connecting beams are arranged at the top and the middle of the suspended ceiling supporting column respectively.
Preferably, the pre-buried combination steel member who is used for connecting the furred ceiling arched beam in furred ceiling support column top, combination steel member includes pre-buried steel sheet of second, steel support and spacing steel sheet, the pre-buried steel sheet of second is pre-buried to be set up in furred ceiling support column top, and spacing steel sheet sets up in the pre-buried steel sheet top of second, and the spacing steel sheet of furred ceiling arched beam end-to-end connection, the pre-buried steel sheet of second is connected to one side of steel support, and the top of steel support supports in the below of furred ceiling arched beam.
Preferably, the first embedded steel plate in the middle of the ceiling supporting column is provided with a steel corbel, and the steel corbel is provided with a finished product movable ceiling construction platform.
Preferably, the ceiling supporting columns on the two sides of the upstream and the downstream are of reinforced concrete structures and are positioned on the poured rock wall crane beam.
Preferably, the suspended ceiling arched girder comprises an outer-coated rolled galvanized thin steel plate, a hollow steel structure framework and inner filling concrete, the outer-coated rolled galvanized thin steel plate is enclosed to form a hollow girder structure with a rectangular cross section, the hollow steel structure framework is arranged in the hollow girder structure formed by the outer-coated rolled galvanized thin steel plate, and the inner filling concrete is filled in the hollow girder structure.
Preferably, the ceiling floor comprises galvanized closed profiled steel sheets and floor concrete.
The invention also provides a construction method of the arch type steel concrete combined ceiling structure of the large-span giant underground factory building, which comprises the following steps:
step 2, casting ceiling support columns on the two sides of the upstream and the downstream on the cast rock wall crane beam to complete installation of the reinforced concrete connecting beam, the embedded combined steel member, the first embedded steel plate and the steel bracket;
step 4, erecting a bent frame on the finished movable ceiling construction platform to weld the extension pull rod with the ceiling anchor rod;
step 5, lifting the spliced complete suspended ceiling arched girder steel structure to an installation height through a guide chain device hung on a lengthening pull rod body, connecting the lengthening pull rod with the suspended ceiling arched girder, and connecting two ends of the suspended ceiling arched girder steel structure with pre-embedded combined steel members at the top of the suspended ceiling supporting column;
step 7, filling concrete, suspended ceiling bottom plate concrete, equipment foundation concrete and tread concrete in the suspended ceiling arched beam through warehouse pouring, and installing an air-conditioning water pipe steel platform;
and 8, spraying PVDF finish paint on the lower surface of the galvanized closed profiled steel sheet twice, wherein the color of the finish paint is selected by an owner according to the overall decoration scheme of a main workshop, and spraying epoxy zinc-rich primer, epoxy mica iron intermediate paint and acrylic polyurethane finish paint on all the remaining exposed steel members, wherein the color of the finish paint meets the building decoration requirement.
The invention absorbs the advantages of the steel structure and the concrete structure, not only has the advantages of strong bearing capacity, strong corrosion resistance, good fireproof performance and the like, but also has the advantages of quick installation and convenient construction, and the installed steel structure is also used as a template for pouring concrete without binding reinforcing steel bars, thereby having small construction interference, high efficiency and short construction period.
Drawings
Fig. 1 is a plan view of the overall structure of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the overall structure of an embodiment of the present invention.
Fig. 3 is a block diagram of an upstream and downstream two side ceiling support column according to an embodiment of the present invention.
Fig. 4 is a block diagram of a ceiling arched beam and ceiling tile according to an embodiment of the invention.
Fig. 5 is a structural view of an air-conditioning water pipe steel platform according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 2, an embodiment of the invention provides a large-span huge underground factory building arch-type steel concrete combined ceiling structure, which comprises a ceiling supporting system, ceiling arched beams 6 and a ceiling bottom plate 7, wherein the ceiling arched beams 6 are erected and fixed through the ceiling supporting system, the ceiling supporting system comprises ceiling supporting columns 3 arranged on two sides of an upstream and a downstream, ceiling anchor rods 4 and extension pull rods 5, two ends of each ceiling arched beam 6 are erected on the tops of the ceiling supporting columns 3, the top ends of the ceiling anchor rods 4 are anchored into the ceiling arched rock bodies, two ends of each extension pull rod 5 are respectively connected with the ceiling anchor rods 4 and the ceiling arched beam 6, and the ceiling bottom plate 7 is laid above the ceiling arched beams 6. The top of the suspended ceiling bottom plate 7 is provided with an air-conditioning water pipe steel platform 8, an equipment foundation 9 and a step 10.
As shown in fig. 2 and 3. And the ceiling support columns 3 on the two sides of the upstream and downstream are of reinforced concrete structures and are positioned on the poured rock wall crane beam 1. The furred ceiling support column 3 is arranged along the factory building side wall, is equipped with dowel 301 between furred ceiling support column 3 and the side wall. And a row of reinforced concrete connecting beams are respectively arranged at the tops and the middle parts of the ceiling supporting columns 3 at the two sides of the upstream and the downstream.
The pre-buried combination steel member who is used for connecting furred ceiling arched beam 6 in 3 tops of furred ceiling support column, the combination steel member includes pre-buried steel sheet 306 of second, steel bracket 307 and spacing steel sheet 308, the pre-buried steel sheet 306 of second sets up in 3 tops of furred ceiling support column, and spacing steel sheet 308 sets up in the pre-buried steel sheet 306 top of second, and furred ceiling arched beam 6 end-to-end connection spacing steel sheet 308, the pre-buried steel sheet 306 of second is connected to one side of steel bracket 307, and the top of steel bracket 307 supports in the below of furred ceiling arched beam 6.
The first pre-buried steel sheet 304 in suspended ceiling support column 3 middle part, be equipped with steel corbel 305 on the pre-buried steel sheet 304 of second, but install the portable furred ceiling construction platform 11 of finished product on the steel corbel 305.
As shown in fig. 4, the suspended ceiling arched beam 6 includes an outer rolled galvanized steel sheet 601, a hollow steel structural framework 602 and an inner filled concrete 603, the outer rolled galvanized steel sheet 601 is enclosed to form a hollow beam structure with a rectangular cross section, the hollow steel structural framework 602 is disposed in the hollow beam structure formed by the outer rolled galvanized steel sheet 601, and the inner filled concrete 603 is filled in the hollow beam structure.
The suspended ceiling floor 7 comprises a galvanized closed profiled steel sheet 701 and floor concrete 702. The galvanized closed profiled steel sheet 701 is laid between the suspended ceiling arched beam 6 steel structures, the galvanized closed profiled steel sheet 701 is fixed on the hollow steel structure framework 602 of the arched beam on two sides through welding nails 703, a special sealant 704 is sealed, the end part of the galvanized closed profiled steel sheet 701 is connected with the top connection beams of the suspended ceiling supporting columns 3 on the two sides of the upstream and the downstream through self-tapping screws 705, the special sealant 704 is sealed, the galvanized closed profiled steel sheet 701 is transversely connected through steel bars 706 in a welding mode, and the galvanized closed profiled steel sheet 701 is laterally connected through the self-tapping screws 705.
Paving surface layer bidirectional C12 steel bars and bottom layer axial direction unidirectional C20 steel bars on the galvanized closed profiled steel sheet 701 and the suspended ceiling arched girder 6 steel structure, reserving a smoke exhaust hole and an air supply hole 709 on the equipment foundation 9 steel bars, fixing a third embedded steel sheet 801, and filling a 20 mm-thick closed-cell foam plate 707 and a rubber water stop bar 708 at the structural joint position.
As shown in fig. 5, the air-conditioning water pipe steel platform 8 includes a third pre-buried steel plate 801, a vertical support angle 802, a horizontal support angle 803, an axial reinforcing flat steel 804, a top-surface through-long pattern steel plate 805, and a through-long stainless steel rail 806. The third embedded steel plate 801 is arranged on the ceiling bottom plate 7, vertical support angle steel 802 and horizontal support angle steel 803 are welded on the third embedded steel plate 801, axial reinforcing flat steel 804 is welded between the horizontal support angle steel 803, a top-surface through long pattern steel plate 805 is laid on the horizontal support angle steel 803 and the axial reinforcing flat steel 804 and is in welded connection with the horizontal support angle steel 803 and the axial reinforcing flat steel 804, and a through long stainless steel railing 806 is arranged on the side surface of the top-surface through long pattern steel plate 805.
The arch type steel concrete combined ceiling structure of the large-span giant underground workshop in the embodiment absorbs respective advantages of a steel structure and a concrete structure, has the advantages of strong bearing capacity, strong corrosion resistance, good fireproof performance and the like, is quick to install and convenient to construct, and the installed steel structure is also used as a template for pouring concrete without binding reinforcing steel bars, so that the construction interference is small, the efficiency is high, and the construction period is short.
The embodiment also provides a construction method of the arch type steel concrete combined ceiling structure of the large-span giant underground powerhouse, which comprises the following steps:
And 2, casting ceiling support columns 3 on the upstream and downstream sides on the cast rock wall crane beam 1, and completing installation of the reinforced concrete connecting beam, the embedded combined steel member, the first embedded steel plate 304 and the steel bracket 305.
The method comprises the following steps: the method comprises the steps of pouring upstream and downstream two-side ceiling supporting columns 3 on a poured rock wall crane beam 1, connecting the upstream and downstream two-side ceiling supporting columns with side walls through dowel bars 301, respectively arranging a row of reinforced concrete connecting beams at the tops and the middle of the upstream and downstream two-side ceiling supporting columns 3, pre-embedding combined steel members at the tops of the upstream and downstream two-side ceiling supporting columns 3, installing first pre-embedded steel plates 304 in the middle of the upstream and downstream two-side ceiling supporting columns 3, and welding steel corbels 305 on the first pre-embedded steel plates 304.
And 3, mounting the finished movable ceiling construction platform 11 on the steel corbels 305 in the middle of the ceiling support columns 3 on the upper side and the lower side.
And 4, erecting a bent frame on the finished product movable ceiling construction platform 11 to weld the extension pull rod 5 and the ceiling anchor rod 4.
And 5, lifting the spliced complete suspended ceiling arched girder 6 steel structure to an installation height through a chain guide device hung on the body of the extension pull rod 5, connecting the extension pull rod 5 with the suspended ceiling arched girder 6, and connecting two ends of the suspended ceiling arched girder 6 steel structure with the embedded combined steel members at the top of the suspended ceiling supporting column 3.
The method comprises the following steps: the steel structure of the suspended ceiling arched girder 6 which is manufactured in three sections in a factory, including the outer rolled galvanized thin steel sheet 601 and the hollow steel structure framework 602, is hoisted to the finished movable suspended ceiling construction platform 11 through hoisting equipment to be spliced, the spliced complete suspended ceiling arched girder 6 steel structure is lifted to an installation elevation through the chain guide device hung on the body of the extension pull rod 5, and the extension pull rod 5 is connected with the suspended ceiling arched girder 6 steel structure through the bolt. And the two ends of the steel structure of the suspended ceiling arched beam 6 are connected with the embedded combined steel members at the top of the suspended ceiling supporting column 3 through bolts and welding.
And 6, paving a ceiling bottom plate 7 between the steel structures of the ceiling arched beams 6.
The method comprises the following steps: a galvanized closed profiled steel sheet 701 is laid between the steel structures of the suspended ceiling arched beams 6, the galvanized closed profiled steel sheet 701 is fixed on a hollow steel structure framework 602 of the arched beams on two sides through welding nails 703, a special sealant 704 is sealed, the end parts of the galvanized closed profiled steel sheet 701 are connected with the top connection beams of the suspended ceiling supporting columns 3 on two sides of the upstream and the downstream through self-tapping screws 705, the special sealant 704 is sealed, the galvanized closed profiled steel sheets 701 are transversely welded through steel bars 706, and the sides of the galvanized closed profiled steel sheets 701 are connected through the self-tapping screws 705;
paving surface layer bidirectional C12 steel bars and bottom layer axial direction unidirectional C20 steel bars, equipment foundation 9 steel bars, reserved smoke exhaust holes and air supply holes 709 on the galvanized closed profiled steel sheet 701 and the suspended ceiling arched beam 6 steel structure, fixing a third embedded steel sheet 801, and filling 20 mm-thick closed-hole foam plates 707 and rubber water stop bars 708 at the structural joint;
and 7, filling concrete 603, bottom plate concrete 702 of the ceiling bottom plate 7, concrete of the equipment foundation 9 and concrete of the step 10 in the ceiling arched beam 6 through warehouse pouring, and installing the air-conditioning water pipe steel platform 8. And a stainless steel railing is arranged on the concrete side surface of the step 10.
Wherein the air conditioner water pipe steel platform's installation step does: welding vertical support angle steel 802 and horizontal support angle steel 803 on the third pre-buried steel plate 801, welding axial reinforcing flat steel 804 between the horizontal support angle steel 803, paving a top-surface through long pattern steel plate 805 on the horizontal support angle steel 803 and the axial reinforcing flat steel 804, and welding and connecting the top-surface through long pattern steel plate 805 with the horizontal support angle steel 803 and the axial reinforcing flat steel 804, and installing a through long stainless steel railing 806 on the side surface of the top-surface through long pattern steel plate 805;
and 8, spraying PVDF finish on the lower surface of the galvanized closed profiled steel sheet 701 twice, wherein the color of the finish is selected by an owner according to the overall decoration scheme of a main workshop, and spraying epoxy zinc-rich primer, epoxy mica iron intermediate paint and acrylic polyurethane finish on all the remaining exposed steel members, wherein the color of the finish meets the building decoration requirement.
Claims (10)
1. The utility model provides a huge secret factory building arch form steel concrete combination furred ceiling structure of large-span, characterized by, including furred ceiling braced system, furred ceiling arched beam (6) and furred ceiling bottom plate (7), furred ceiling arched beam (6) erect and fix through furred ceiling braced system, furred ceiling braced system includes by setting up in both sides furred ceiling support column (3) of upper and lower reaches, furred ceiling stock (4) and extension pull rod (5), and the top of furred ceiling support column (3) is erect at the both ends of furred ceiling arched beam (6), the top of furred ceiling stock (4) is anchored into the top and is encircleed the rock mass, connects extension pull rod (5) both ends and connects stock (4) and furred ceiling arched beam (6) respectively, and furred ceiling arched beam (.
2. The arch type steel concrete combined ceiling structure of the large-span giant underground powerhouse according to claim 1, wherein an air-conditioning water pipe steel platform (8), an equipment foundation (9) and a step (10) are arranged at the top of a ceiling bottom plate (7).
3. The large-span huge underground factory building arch-type steel concrete combined ceiling structure of claim 1, wherein the ceiling supporting columns (3) are arranged along side walls of a factory building, and the steel dowels (301) are arranged between the ceiling supporting columns (3) and the side walls.
4. The large-span huge underground factory building arch type steel reinforced concrete combined ceiling structure as claimed in claim 1, wherein a row of reinforced concrete connecting beams are respectively arranged at the top and the middle of the ceiling supporting column (3).
5. The large-span huge underground powerhouse arch-type steel-concrete combined ceiling structure as claimed in claim 1, wherein a combined steel member for connecting the ceiling arched beam (6) is embedded in the top of the ceiling supporting column (3), the combined steel member comprises a second embedded steel plate (306), a steel support bracket (307) and a limiting steel plate (308), the second embedded steel plate (306) is embedded in the top of the ceiling supporting column (3), the limiting steel plate (308) is arranged on the top end of the second embedded steel plate (306), the ceiling arched beam (6) is connected with the limiting steel plate (308) at the end, one side of the steel support bracket (307) is connected with the second embedded steel plate (306), and the top end of the steel support bracket (307) is supported below the ceiling arched beam (6).
6. The large-span huge underground factory building arch-type steel reinforced concrete combined ceiling structure as claimed in claim 1, wherein the ceiling supporting column (3) is provided with a first pre-embedded steel plate (304) in the middle, the second pre-embedded steel plate (304) is provided with a steel corbel (305), and a finished movable ceiling construction platform (11) is mounted on the steel corbel (305).
7. The large-span huge underground powerhouse arch type steel reinforced concrete combined ceiling structure as claimed in claim 1, wherein the ceiling supporting columns (3) at the upstream and downstream sides are of reinforced concrete structure and are positioned on the poured rock wall crane beam (1).
8. The large-span huge underground factory building arch-type steel concrete combined ceiling structure of claim 1, wherein the ceiling arched beam (6) comprises an outer-wrapped rolled galvanized steel sheet (601), a hollow steel structure framework (602) and inner-filled concrete (603), the outer-wrapped rolled galvanized steel sheet (601) is enclosed to form a hollow beam structure with a rectangular cross section, the hollow steel structure framework (602) is arranged in the hollow beam structure formed by the outer-wrapped rolled galvanized steel sheet (601), and the inner-filled concrete (603) is filled in the hollow beam structure.
9. The large-span huge underground powerhouse arch-type steel reinforced concrete combined ceiling structure as claimed in claim 1, wherein the ceiling bottom plate (7) comprises galvanized closed profiled steel plate (701) and bottom plate concrete (702).
10. A construction method of a large-span huge underground factory building arch-type steel concrete combined ceiling structure is characterized by comprising the following steps:
step 1, a ceiling anchor rod (4) is implemented during excavation and support of a roof arch of a factory building;
step 2, casting ceiling support columns (3) on the upstream side and the downstream side on the cast rock wall crane beam (1) to complete installation of the reinforced concrete connecting beam (302), the embedded combined steel member, the first embedded steel plate (304) and the steel bracket (305);
step 3, mounting a finished product movable ceiling construction platform (11) on steel corbels (305) in the middle of ceiling support columns (3) on the upper side and the lower side;
step 4, erecting a bent frame on the finished product movable ceiling construction platform (11) to weld the extension pull rod (5) and the ceiling anchor rod (4);
step 5, lifting the spliced complete suspended ceiling arched beam (6) steel structure to an installation elevation through a chain guide device hung on a body of an extension pull rod (5), connecting the extension pull rod (5) with the suspended ceiling arched beam (6), and connecting two ends of the suspended ceiling arched beam (6) steel structure with the embedded combined steel members at the top of the suspended ceiling supporting column (3);
step 6, paving a ceiling bottom plate (7) between the steel structures of the ceiling arched beams (6);
step 7, filling concrete (603), bottom plate concrete (702) of a ceiling bottom plate (7), concrete of an equipment foundation (9) and concrete of a step (10) in the ceiling arched beam (6) through warehouse pouring, and installing an air-conditioning water pipe steel platform (8);
and 8, spraying PVDF finish on the lower surface of the galvanized closed profiled steel sheet (701) twice, wherein the color of the finish is selected by an owner according to the overall finishing scheme of a main workshop, and spraying epoxy zinc-rich primer, epoxy mica iron intermediate paint and acrylic polyurethane finish on all the remaining exposed steel members, wherein the color of the finish meets the building finishing requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011634728.1A CN112746704A (en) | 2020-12-31 | 2020-12-31 | Arch type steel-concrete combined ceiling structure of large-span giant underground workshop and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011634728.1A CN112746704A (en) | 2020-12-31 | 2020-12-31 | Arch type steel-concrete combined ceiling structure of large-span giant underground workshop and construction method |
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| CN112746704A true CN112746704A (en) | 2021-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152930A (en) * | 2021-05-10 | 2021-07-23 | 王长财 | Vault supporting device and method for building construction |
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2020
- 2020-12-31 CN CN202011634728.1A patent/CN112746704A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152930A (en) * | 2021-05-10 | 2021-07-23 | 王长财 | Vault supporting device and method for building construction |
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