CN110847502A - Installation and support structure for steel column of foundation slab and construction method - Google Patents
Installation and support structure for steel column of foundation slab and construction method Download PDFInfo
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- CN110847502A CN110847502A CN201911324867.1A CN201911324867A CN110847502A CN 110847502 A CN110847502 A CN 110847502A CN 201911324867 A CN201911324867 A CN 201911324867A CN 110847502 A CN110847502 A CN 110847502A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 127
- 239000010959 steel Substances 0.000 title claims abstract description 127
- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 title claims abstract description 17
- 239000010410 layer Substances 0.000 claims description 40
- 238000003466 welding Methods 0.000 claims description 20
- 239000011241 protective layer Substances 0.000 claims description 16
- 239000004567 concrete Substances 0.000 claims description 8
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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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
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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
- E02D31/02—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 ground humidity or ground water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model provides a foundation slab steel column installation support structure and construction method, includes bed course, waterproof layer, pre-buried subassembly, support frame, backup pad, pre-buried steel column and pre-buried shear member, and pre-buried subassembly includes horizontally pre-buried connecting plate, and the support frame includes a set of support column, and the bottom of support column and the upside surface connection of pre-buried connecting plate, pre-buried subassembly still include pre-buried landing leg, and every row of pre-buried landing leg and pre-buried connecting plate three are pi shape. The supporting device for installing the steel column of the foundation slab can effectively solve the problem that the embedded steel column in the bottom slab cannot be fixedly installed, the position of the angle steel supporting frame is adjusted by adjusting the positioning of the embedded connecting plate, the embedded elevation of the embedded steel column is met by adjusting the specification and the size of the angle steel supporting frame and replacing different supporting plates, so that the accuracy of the embedded steel column is effectively improved, the supporting requirement of the embedded steel column installation can be met, and the installation safety and the installation stability of the embedded steel column are ensured.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a supporting structure for installing a steel column of a foundation slab and a construction method thereof.
Background
With the rapid development of high-rise buildings in China, the application of steel reinforced concrete structures is more and more extensive. The reinforced steel reinforced concrete has the advantages of high strength, small size of the section of the member, strong bond force with the concrete, concrete saving, use space increase and construction cost reduction.
In buildings such as high-rise houses, apartments and the like, the H-shaped steel is placed in the column or the shear wall to enhance the bearing capacity and reduce the axial compression ratio of the member while saving the area and compressing the section of the vertical stressed member. When the H-shaped steel column is installed, the requirements on size positioning and safety are high, foundation bolts are pre-embedded when the foundation slab is poured for the common high-rise building, and the H-shaped steel column is fixed on the foundation bolts after the strength requirement is met. However, when the height of part of buildings is too high, the H-shaped steel columns are embedded into the foundation slab through the through length, the H-shaped steel shearing resistant pieces are embedded in the foundation slab, and the installation of the embedded steel columns needs to be completed before the foundation slab is poured, so that the installation safety and accuracy of the steel columns must be ensured.
Disclosure of Invention
The invention aims to provide a foundation slab steel column installation supporting structure and a construction method, and aims to solve the technical problems that when an H-shaped steel column is embedded into a foundation slab, the embedded steel column is inconvenient to fix, the installation safety of the embedded steel column cannot be guaranteed, and the installation accuracy of the embedded steel column is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mounting and supporting structure for a steel column of a foundation slab comprises a cushion layer, a waterproof protective layer, a pre-embedded assembly, a supporting frame, a supporting plate, a pre-embedded steel column and pre-embedded shear resistant pieces,
the cushion layer is positioned at the bottommost layer, the waterproof layer is fully paved on the upper side surface of the cushion layer, the waterproof protective layer is fully paved on the upper side surface of the waterproof layer,
the embedded component comprises a horizontal embedded connecting plate, the upper side surface of the embedded connecting plate is flush with the upper side surface of the waterproof protective layer,
the supporting frame comprises a group of supporting columns, the number of the pre-buried connecting plates is the same as that of the supporting columns, the bottom ends of the supporting columns correspond to the upper side surfaces of the pre-buried connecting plates one by one and are fixedly connected with the upper side surfaces of the pre-buried connecting plates,
the embedded shear resistant device comprises a supporting plate, embedded steel columns and embedded shear pieces, wherein the supporting plate is horizontally arranged and integrally connected with the top ends of the supporting columns, the bottom ends of the embedded steel columns are fixedly connected to the upper side surface of the supporting plate, and the embedded shear pieces are horizontally and fixedly connected to the bottom of the embedded steel columns and the upper side of the supporting plate.
The embedded component further comprises embedded support legs, two rows of embedded support legs are fixedly connected to the lower side of each embedded connecting plate, each row of embedded support legs comprises two, each embedded support leg comprises a vertical section and a horizontal section, the top end of each vertical section is connected with the embedded connecting plate in a plug welding mode, one end of each horizontal section is perpendicular to the bottom end of each vertical section and fixedly connected with the bottom end of each vertical section, the horizontal sections are arranged towards the outer side relatively, and each row of embedded support legs and the embedded connecting plates are in a pi shape.
The middle parts of the cushion layer and the waterproof layer are recessed to form an inverted trapezoidal side profile, and the embedded support legs are embedded into the recessed position.
The support frame also comprises a bottom horizontal frame, a top horizontal frame and a side inclined strut,
the horizontal frame in bottom is the rectangle, encloses to close fixed connection around the outside of support column bottom, pre-buried connecting plate top, the horizontal frame in top is the rectangle, encloses to close fixed connection around the top outside of support column, the lower side surface of backup pad, the lateral part bracing is located to be connected between horizontal frame in bottom and the horizontal frame in top, and fixed connection is in the side of support column.
The support frame forms lattice column structure, and four total support columns are the angle steel, and bottom horizontal frame comprises four angle steels, and top horizontal frame also comprises four angle steels, and the angle steel of bottom horizontal frame and top horizontal frame is just right from top to bottom one by one, the lateral part bracing sets up respectively in four sides of support frame, and every side all includes one and affixes and props, and the top fixed connection that affixes props is at the top of one of them support column of this side, and the bottom fixed connection that affixes props is in the bottom of another support column of this side, it is the angle steel to affix and prop.
The size of the support plate is larger than that of the top horizontal frame.
The embedded steel column is H-shaped steel, the embedded steel column and the support frame are arranged in a centered alignment mode, the embedded steel column comprises flange plates and web plates, and the axis of each web plate coincides with the diagonal line of the two opposite support columns.
The support structure comprises support frame members, support columns and embedded steel columns, wherein the support frame members are fixedly connected with the support frame members through full-weld joints, the support plates are connected with the support columns through full-weld joints, the embedded shear resistant members are connected with the embedded steel columns through full-weld joints, and the support columns are connected with the embedded connecting plates through fillet weld joints.
The height-to-width ratio of the support frame is less than 4: 1.
A construction method of a foundation slab steel column mounting and supporting structure comprises the following construction steps:
determining the height and width of a support frame according to the specification and size and the embedded elevation of an embedded steel column, and welding a support column, a bottom and bottom horizontal frame, a top horizontal frame, a side inclined support and a support plate into a whole;
measuring and paying off in advance to determine the positioning position of the embedded connecting plate, further positioning the position of the supporting column, determining the concave range of the cushion layer and the waterproof layer, and then constructing the cushion layer and the waterproof layer;
before the construction of the waterproof protective layer, welding and assembling the embedded connecting plate and the embedded supporting legs, positioning and fixing the embedded connecting plate and the embedded supporting legs at the lower concave part, and pouring the waterproof protective layer to be flush with the upper side surface of the embedded connecting plate;
transporting the support frame in the step one to a field, correspondingly embedding a connecting plate in a supporting column and welding the connecting plate to the surface of the supporting column, and then controlling the horizontal elevation and the verticality of the supporting column;
welding an embedded shear resistant part at the bottom of the embedded steel column, wherein the embedded shear resistant part is a section of H-shaped steel; welding a horizontal inner stiffening plate on the embedded steel column part corresponding to the embedded shear resistant piece;
step six, welding the bottom end of the embedded steel column in the middle at the upper side of the supporting plate; welding horizontal inner stiffening plates on the surface of the upper side to be cast of the bottom plate concrete;
and step seven, binding the steel bars of the foundation slab and pouring concrete of the foundation slab to form the reinforced concrete of the foundation slab.
Compared with the prior art, the invention has the following characteristics and beneficial effects:
the supporting device for installing the steel column of the foundation slab can effectively solve the problem that the embedded steel column in the bottom slab cannot be fixedly installed, the position of the angle steel supporting frame is adjusted by adjusting the positioning of the embedded connecting plate, the embedded elevation of the embedded steel column is met by adjusting the specification and the size of the angle steel supporting frame and replacing different supporting plates, so that the accuracy of the embedded steel column is effectively improved, the supporting requirement of the embedded steel column installation can be met, and the installation safety and the installation stability of the embedded steel column are ensured.
The supporting device for installing the steel column of the foundation slab is simple and convenient to construct, the angle steel supporting frame is machined and formed in a factory at one time, the embedded part can be fixedly installed after the angle steel supporting frame enters a field, normal construction of the foundation slab is not influenced, and the construction period and the cost are saved. The supporting structure can effectively solve the difficult problem of construction of the embedded steel column provided with the H-shaped steel shearing resistant piece, effectively improves the installation accuracy of the steel column, and ensures the safety and stability of the embedded steel column construction.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a section a-a in fig. 1.
Fig. 3 is a schematic structural view of a section B-B in fig. 1.
Reference numerals: 1-cushion layer, 2-waterproof layer, 3-waterproof protective layer, 4-embedded connecting plate, 5-embedded supporting leg, 6-bottom horizontal frame, 7-supporting column, 8-side inclined strut, 9-top horizontal frame, 10-supporting plate, 11-embedded shear resistant piece, 12-embedded steel column, 13-foundation bottom plate reinforced concrete and 14-horizontal internal stiffening plate.
Detailed Description
Referring to fig. 1 to 3, the mounting and supporting structure for the steel column of the foundation slab comprises a cushion layer 1, a waterproof layer 2, a waterproof protective layer 3, an embedded component, a supporting frame, a supporting plate 10, an embedded steel column 12 and an embedded shear resistant member 11.
The cushion layer 1 is positioned at the bottommost layer, the waterproof layer 2 is fully paved on the upper side surface of the cushion layer 1, and the waterproof protective layer 3 is fully paved on the upper side surface of the waterproof layer 2.
The embedded component comprises a horizontal embedded connecting plate 4, and the upper side surface of the embedded connecting plate 4 is flush with the upper side surface of the waterproof protective layer 3.
The supporting frame comprises a group of supporting columns 7, the number of the embedded connecting plates 4 is the same as that of the supporting columns 7, the bottom ends of the supporting columns 7 are in one-to-one correspondence with and fixedly connected with the upper side surfaces of the embedded connecting plates 4,
the embedded shear resistant structure comprises a supporting plate 10, embedded steel columns 12 and embedded shear pieces 11, wherein the supporting plate 10 is horizontally arranged and integrally connected with the top ends of the supporting columns 7, the bottom ends of the embedded steel columns 12 are fixedly connected to the upper side surface of the supporting plate 10, and the embedded shear pieces 11 are horizontally and fixedly connected to the bottoms of the embedded steel columns 12 and above the supporting plate 10.
The embedded component further comprises embedded support legs 5, two rows of embedded support legs 5 are fixedly connected to the lower side of each embedded connecting plate 4, each row of embedded support legs 5 comprises two, each embedded support leg 5 comprises a vertical section and a horizontal section, the top end of each vertical section is plug-welded to the corresponding embedded connecting plate 4, one end of each horizontal section is perpendicular to the bottom end of each vertical section and is fixedly connected to the bottom end of each vertical section, each horizontal section is arranged towards the outer side, and each row of embedded support legs 5 and the corresponding embedded connecting plates 4 are in a pi shape.
The middle parts of the cushion layer 1 and the waterproof layer 2 are recessed to form an inverted trapezoid side section, and the embedded support legs 5 are embedded into the recessed position.
The support frame still includes horizontal frame 6 in bottom, the horizontal frame 9 in top and lateral part bracing 8, horizontal frame 6 in bottom is the rectangle, encloses the outside that closes fixed connection in support column 7 bottom all around, pre-buried connecting plate 4 tops, horizontal frame 9 in top is the rectangle, encloses the downside surface that closes fixed connection around the top outside of support column 7, backup pad 10, lateral part bracing 8 is located to be connected between horizontal frame 6 in bottom and the horizontal frame 9 in top, fixed connection is in the side of support column 7.
The support frame forms lattice column structure, and support column 7 is four altogether and is the angle steel, and bottom horizontal frame 6 comprises four angle steels, and top horizontal frame 9 also comprises four angle steels, and bottom horizontal frame 6 is just right one by one with the angle steel of top horizontal frame 9, lateral part bracing 8 sets up respectively in four sides of support frame, and every side all includes one and decorates and prop, decorates the top fixed connection who props at the top of one of them support column 7 of this side, decorates the bottom fixed connection who props in the bottom of another support column 7 of this side, decorate and prop for the angle steel.
The size of the support plate 10 is larger than the size of the top horizontal rim 9.
The embedded steel column 12 is H-shaped steel, the embedded steel column 12 is aligned with the support frame in the middle, the embedded steel column 12 comprises flange plates and web plates, and the axis of each web plate is overlapped with the diagonal line of the two opposite support columns 7.
The fixed connection between the support frame members is full-weld connection, the support plate 10 and the support column 7 are full-weld connection, the pre-buried shear resistant member 11 and the pre-buried steel column 12 are full-weld connection, and the support column 7 and the pre-buried connecting plate 4 are fillet weld connection.
The height-to-width ratio of the support frame is less than 4: 1.
In this embodiment, the supporting column 7 is an angle steel of L50 × 5mm, and the length is 1153 mm. The bottom horizontal frame 6 and the top horizontal frame 9 are L50 multiplied by 5mm angle steel, and the length is 318 mm. The side inclined strut 8 is L50 multiplied by 5mm angle steel with the length 939 mm. In other embodiments, the size and dimensions of the angle steel can be selected according to actual field.
The height-width ratio of the support frame is 3.6: 1. In other embodiments, the aspect ratio of the support frame can be any number less than 4: 1.
In this embodiment, the embedded connecting plate 4 is a PL150 × 150 × 10mm steel plate, and the embedded leg 5 is a J-shaped D12 round steel, and has a total length of 202mm and a height of 152 mm. The support plate 10 is a steel plate having dimensions of 560 × 560 × 10 mm. The embedded shear pieces are H-shaped steel with the model of H200 multiplied by 20 mm. The embedded steel column 12 is H-shaped steel with the model of BH500 multiplied by 250 multiplied by 20 multiplied by 26 mm.
The construction method of the foundation slab steel column mounting and supporting structure comprises the following construction steps:
firstly, determining the height and width of the support frame according to the specification and size and the embedded elevation of the embedded steel column 12, and welding the support column 7, the bottom and bottom horizontal frame 6, the top horizontal frame 9, the side inclined strut 8 and the support plate 10 into a whole.
And step two, measuring and paying off in advance to determine the positioning position of the embedded connecting plate 4, further positioning the position of the supporting column 7, determining the concave range of the cushion layer 1 and the waterproof layer 2, and then constructing the cushion layer 1 and the waterproof layer 2.
And step three, before the construction of the waterproof protective layer 3, welding and assembling the embedded connecting plate 4 and the embedded supporting legs 5, positioning and fixing the embedded connecting plate at the lower concave part, and pouring the waterproof protective layer 3 to be parallel to the upper side surface of the embedded connecting plate 4.
And step four, transporting the support frame obtained in the step one to the field, enabling the support columns 7 to correspond to the embedded connecting plates 4 and be welded to the surfaces of the embedded connecting plates, and then controlling the horizontal elevation and the verticality of the support columns 7.
Welding an embedded shear resistant part 11 at the bottom of an embedded steel column 12, wherein the embedded shear resistant part 11 is a section of H-shaped steel; and horizontal inner stiffening plates 14 are welded on the parts of the embedded steel columns 12 corresponding to the embedded shear pieces 11.
Step six, welding the bottom ends of the embedded steel columns 12 to the upper side of the support plate 10 in the middle; and welding horizontal inner stiffening plates 14 at the positions of the upper side surfaces to be cast of the bottom plate concrete.
And step seven, binding the steel bars of the foundation slab and pouring concrete of the foundation slab to form reinforced concrete 13 of the foundation slab.
Claims (10)
1. The utility model provides a foundation slab steel column installation support structure which characterized in that: comprises a cushion layer (1), a waterproof layer (2), a waterproof protective layer (3), an embedded component, a support frame, a support plate (10), an embedded steel column (12) and an embedded shear resistant piece (11),
the cushion layer (1) is positioned at the bottommost layer, the waterproof layer (2) is fully paved on the upper side surface of the cushion layer (1), the waterproof protective layer (3) is fully paved on the upper side surface of the waterproof layer (2),
the embedded component comprises a horizontal embedded connecting plate (4), the upper side surface of the embedded connecting plate (4) is flush with the upper side surface of the waterproof protective layer (3),
the supporting frame comprises a group of supporting columns (7), the number of the pre-buried connecting plates (4) is the same as that of the supporting columns (7), the bottom ends of the supporting columns (7) are in one-to-one correspondence with and fixedly connected with the upper side surfaces of the pre-buried connecting plates (4),
the embedded shear resistant structure is characterized in that the supporting plate (10) is horizontally arranged and integrally connected with the top ends of the supporting columns (7), the bottom end of the embedded steel column (12) is fixedly connected to the upper side surface of the supporting plate (10), and the embedded shear resistant piece (11) is horizontally and fixedly connected to the bottom of the embedded steel column (12) and the upper portion of the supporting plate (10).
2. The foundation slab steel column mounting and supporting structure of claim 1, wherein: the embedded component further comprises embedded support legs (5), two rows of embedded support legs (5) are fixedly connected to the lower side of each embedded connecting plate (4), each row of embedded support legs (5) comprises two, each embedded support leg (5) comprises a vertical section and a horizontal section, the top end of each vertical section is connected with the embedded connecting plate (4) in a plug welding mode, one end of each horizontal section is perpendicular to the bottom end of each vertical section and is fixedly connected with the bottom end of each vertical section, each horizontal section is arranged towards the outer side in a vertical mode, and each row of embedded support legs (5) and the embedded connecting plates (4) are in a Pi shape.
3. The foundation slab steel column mounting and support structure of claim 2, wherein: the middle parts of the cushion layer (1) and the waterproof layer (2) are recessed to form an inverted trapezoid side section, and the embedded support legs (5) are embedded into the recessed position.
4. The foundation slab steel column mounting and support structure of claim 3, wherein: the support frame also comprises a bottom horizontal frame (6), a top horizontal frame (9) and a side inclined strut (8),
bottom horizontal frame (6) are the rectangle, enclose and close fixed connection around the outside of support column (7) bottom, pre-buried connecting plate (4) top, top horizontal frame (9) are the rectangle, enclose the downside surface that closes fixed connection around the top outside of support column (7), backup pad (10), lateral part bracing (8) are located to be connected between bottom horizontal frame (6) and top horizontal frame (9), and fixed connection is in the side of support column (7).
5. The foundation slab steel column mounting and support structure of claim 4, wherein: the support frame forms lattice column structure, and support column (7) are four angle steel altogether, and bottom horizontal frame (6) are constituteed by four angle steels, and top horizontal frame (9) also comprise four angle steels, and the angle steel of bottom horizontal frame (6) and top horizontal frame (9) is just right one by one from top to bottom, lateral part bracing (8) set up respectively in four sides of support frame, and every side all includes one and affixes and props, and the top fixed connection that affixes and props is at the top of one of them support column (7) of this side, and the bottom fixed connection that affixes and props is in the bottom of another support column (7) of this side, it props for the angle steel to affix and prop.
6. The foundation slab steel column mounting and supporting structure of claim 4 or 5, wherein: the size of the supporting plate (10) is larger than that of the top horizontal frame (9).
7. The foundation slab steel column mounting and supporting structure of claim 4 or 5, wherein: the embedded steel column (12) is H-shaped steel, the embedded steel column (12) is aligned with the support frame in the middle, the embedded steel column (12) comprises flange plates and web plates, and the axis of each web plate coincides with the diagonal line of the two opposite support columns (7).
8. The foundation slab steel column mounting and supporting structure of claim 4 or 5, wherein: the support structure is characterized in that the support structure is fixedly connected with the support structure in a full-weld mode, the support plate (10) is connected with the support column (7) in a full-weld mode, the embedded shear resistant part (11) is connected with the embedded steel column (12) in a full-weld mode, and the support column (7) is connected with the embedded connecting plate (4) in a fillet weld mode.
9. The foundation slab steel column mounting and supporting structure of claim 4 or 5, wherein: the height-to-width ratio of the support frame is less than 4: 1.
10. A method for constructing a foundation slab steel column installation support structure according to any one of claims 4 to 9, wherein the construction steps are as follows:
step one, determining the height and width of a support frame according to the specification and size and the embedded elevation of an embedded steel column (12), and welding a support column (7), a bottom-bottom horizontal frame (6), a top horizontal frame (9), a side inclined strut (8) and a support plate (10) into a whole;
measuring and paying off in advance to determine the positioning position of the embedded connecting plate (4) and further position the position of the supporting column (7), so that the concave range of the cushion layer (1) and the waterproof layer (2) is determined, and then constructing the cushion layer (1) and the waterproof layer (2);
before the construction of the waterproof protective layer (3), welding and assembling the embedded connecting plate (4) and the embedded supporting legs (5), positioning and fixing the embedded connecting plate at the lower concave part, and pouring the waterproof protective layer (3) to be flush with the upper side surface of the embedded connecting plate (4);
transporting the support frame in the step one to a field, correspondingly embedding the connecting plate (4) in the support column (7) and welding the support column to the surface of the support column, and then controlling the horizontal elevation and the verticality of the support column (7);
welding an embedded shear resistant part (11) at the bottom of an embedded steel column (12), wherein the embedded shear resistant part (11) is a section of H-shaped steel; the horizontal inner stiffening plates (14) are welded to the parts, corresponding to the embedded shear pieces (11), of the embedded steel columns (12);
step six, welding the bottom end of the embedded steel column (12) at the upper side of the support plate (10) in the middle; welding horizontal inner stiffening plates (14) at the positions of the upper side surfaces to be cast of the bottom plate concrete;
and step seven, binding the steel bars of the foundation slab and pouring concrete of the foundation slab to form reinforced concrete (13) of the foundation slab.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150259914A1 (en) * | 2014-03-17 | 2015-09-17 | Hitachi Metals Techno, Ltd. | Column structure and base member |
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| CN208918013U (en) * | 2018-09-28 | 2019-05-31 | 中国建筑土木建设有限公司 | Bracket for steel structure pre-embedding |
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| CN114482109A (en) * | 2022-02-28 | 2022-05-13 | 安徽富煌钢构股份有限公司 | Construction method for pre-buried steel column of raft foundation in complex environment |
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