CN116254926A - Construction method of inserted steel column foot - Google Patents
Construction method of inserted steel column foot Download PDFInfo
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- CN116254926A CN116254926A CN202310048683.7A CN202310048683A CN116254926A CN 116254926 A CN116254926 A CN 116254926A CN 202310048683 A CN202310048683 A CN 202310048683A CN 116254926 A CN116254926 A CN 116254926A
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- steel column
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 238000010276 construction Methods 0.000 title claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 238000009434 installation Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000003351 stiffener Substances 0.000 description 4
- DOSMHBDKKKMIEF-UHFFFAOYSA-N 2-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]-5-[3-[3-[4-(1-methylindol-3-yl)-2,5-dioxopyrrol-3-yl]indol-1-yl]propylsulfamoyl]benzenesulfonate Chemical compound C1=CC(=[N+](CC)CC)C=C2OC3=CC(N(CC)CC)=CC=C3C(C=3C(=CC(=CC=3)S(=O)(=O)NCCCN3C4=CC=CC=C4C(C=4C(NC(=O)C=4C=4C5=CC=CC=C5N(C)C=4)=O)=C3)S([O-])(=O)=O)=C21 DOSMHBDKKKMIEF-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
- E04B1/5831—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially rectangular form
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2463—Connections to foundations
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Foundations (AREA)
Abstract
The invention relates to the technical field of steel column foot construction, in particular to a plug-in steel column foot construction method, which comprises the following steps: preparing at least four bolts, wherein each bolt is provided with a first nut and a second nut, and preparing stiffening plates corresponding to the number of the bolts, wherein through holes are formed in the stiffening plates; embedding bolts around the top of the cup opening, and screwing the first nuts into the bolts; welding the prepared stiffening plate on the steel column according to a preset elevation; adjusting the position of the first nut to enable the elevation of the top surface of the first nut to be the same as the elevation of the bottom surface of the reinforcing plate; the bolts are sleeved into the through holes corresponding to the stiffening plates, and the second nuts are screwed into the bolts to fix the steel columns; pouring concrete to be flush with the cup rim foundation; the method greatly shortens the installation and adjustment time of the steel column, only needs one-time grouting, directly pours concrete to be level with the cup rim at one time, saves one construction process, shortens the construction period, and reduces the construction cost.
Description
Technical Field
The invention relates to the technical field of steel column foot construction, in particular to a plug-in steel column foot construction method.
Background
Compared with the traditional bolt connection type column foot node, the plug-in type steel column foot has the advantages of being simple in manufacture, convenient to install, safe, reliable, good in rigidity with a foundation and the like, and therefore more and more plug-in type steel column feet are applied to practical engineering.
The existing installation method of the inserted steel column leg comprises the following steps: after the cup foundation construction is completed, paving a backing plate at the bottom of the cup opening by using a slurry-sitting method, hoisting a steel column into the cup opening, adjusting the steel column to a preset construction position, then plugging a wedge between the cup opening and the steel column to adjust the verticality of the steel column (simultaneously playing a fixing role), and pulling the steel column by using a cable rope after fixing to prevent the steel column from tilting in the pouring process; and finally, grouting the cup opening twice, pouring the cup opening to the lower part of the wedge iron during primary grouting, removing the wedge iron for secondary grouting after the strength of the concrete meets the requirement, and pouring the concrete to be flush with the cup opening. The applicant finds that the existing construction method has the following defects: 1. the phenomenon of uneven bottom of the cup mouth foundation is common, so that the requirement on laying levelness of the base plate is extremely high, the laying efficiency of the base plate is low, and the construction period is long; 2. when the steel column is hoisted, the steel column is troublesome to position and cannot be aligned with the center accurately, and the adjustment time is long; 3. when the verticality of the steel column is fixedly adjusted by using the wedge iron, the time is long, and the wedge iron is easy to loosen, so that the center of the steel column is deviated, and the steel column needs to be adjusted again; 4. after the strength of the primary grouting concrete meets the requirement, secondary grouting can be performed, the construction period is longer, and the requirement of the construction period progress cannot be met.
Disclosure of Invention
The invention aims to solve the problems, thereby providing a plug-in steel column foot construction method.
The invention solves the problems, and adopts the following technical scheme:
a construction method of a plug-in steel column leg comprises the following steps:
s1, material preparation: preparing at least four bolts, wherein each bolt is provided with a first nut and a second nut, the first nut is positioned at the lower side of the second nut, and simultaneously, preparing reinforcing plates corresponding to the number of the bolts, and the reinforcing plates are provided with through holes corresponding to the diameters of the bolts;
s2, cup rim foundation construction and steel column manufacturing: when the cup rim foundation is constructed, bolts are buried around the top of the cup rim, the top of each bolt is 150-250 mm higher than the top of the cup rim foundation, and then the first nuts are screwed into the bolts; when the steel column is manufactured, the prepared stiffening plate is welded on the steel column according to a preset elevation;
s3, elevation adjustment: adjusting the position of the first nut according to the elevation of the stiffening plate;
s4, installing a steel column: the bolts are sleeved into the through holes corresponding to the stiffening plates, and the second nuts are screwed into the bolts to fix the steel columns;
s5, grouting: the concrete is poured to be flush with the cup rim foundation.
Further, in step S4, after the bolts are sleeved into the through holes of the corresponding stiffening plates, if the verticality of the steel column does not meet the standard requirement, the verticality of the steel column is adjusted to meet the standard requirement by fine-adjusting the first nuts.
Further, flat washers are additionally arranged on the upper side and the lower side of the stiffening plate; the nut and the reinforcing plate are prevented from being small in contact area, the contact area is increased through the flat gasket, and the fixing effect of the steel column is guaranteed.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
according to the invention, the bolts are used for replacing the backing plates and the wedge irons, and the bolts are arranged on the periphery of the cup rim foundation, so that the center alignment of the steel column can be realized only by sleeving the reinforcing plates additionally arranged on the steel column into the center bolts on the periphery of the cup rim during installation; when the horizontal height and the verticality are adjusted, only the horizontal height of the first nuts around on the bolts is adjusted, so that the time for installing and adjusting the steel column is greatly shortened; meanwhile, the method only needs primary grouting, directly and once grouting concrete to be flush with the cup rim, and secondary grouting is not needed, so that one construction process is saved, the construction period is shortened, and the construction cost is reduced.
Drawings
FIG. 1 is a schematic view of a construction structure of an insert steel column foot in an embodiment of the present invention;
FIG. 2 is a schematic view of a bolt according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a stiffener plate according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a stiffener plate according to an embodiment of the present invention;
FIG. 5 is a schematic view of a structure of a cup with a bolt embedded therein according to an embodiment of the present invention;
FIG. 6 is a schematic top view of a cup with a bolt embedded therein;
FIG. 7 is a schematic view of a structure of a stiffener plate during welding according to an embodiment of the present invention;
FIG. 8 is a schematic top view of a stiffener plate according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of the structure of the present invention during the adjustment of the bid height;
fig. 10 is a schematic view of the structure of the steel column according to the embodiment of the present invention.
In the figure: 1. a cup opening; 101. a base bearing platform; 2. a steel column; 201. anchor bars; 3. a bolt; 4. a first nut; 5. a second nut; 6. reinforcing plates; 601. a bottom plate; 602. a gusset; 603. a through hole; 7. and (3) a flat gasket.
Detailed Description
The invention is further described below in connection with the following examples which are provided for the purpose of better understanding of the present invention and are, therefore, not to be construed as limiting the scope of the invention.
As shown in fig. 1 to 10, the present embodiment provides a construction method of an insert steel column leg, including the following steps:
s1, material preparation: preparing at least four bolts 3, wherein each bolt 3 is provided with a first nut 4 and a second nut 5, the first nut 4 is positioned at the lower side of the second nut 5, simultaneously preparing reinforcing plates 6 corresponding to the number of the bolts 3, and through holes 603 are formed in the reinforcing plates 6 corresponding to the diameters of the bolts 3; wherein, the bolts 3 adopt M24 x 700mm anchor bolts, and each anchor bolt is provided with a first nut 4, two second nuts 5 and two flat washers 7; the stiffening plate 6 comprises a bottom plate 601 with the thickness of 20mm, the width of 200mm and the length of 350mm, wherein the bottom plate 601 is welded with a rib piece 602 along the transverse central axis of the bottom plate 601, the rib piece 602 is perpendicular to the bottom plate 601, and the rib piece 602 is 14mm thick, 120mm high and 210mm long.
S2, foundation construction of a cup opening 1 and manufacturing of a steel column 2: during foundation construction of the foundation bearing platform 101 and the cup rim 1, bolts 3 are buried around the top of the cup rim 1, the top of each bolt 3 is 150-250 mm higher than the top of the foundation of the cup rim 1, and then a first nut 4 is screwed into each bolt 3; when the steel column 2 is manufactured, the prepared stiffening plate 6 is welded on the steel column 2 according to a preset elevation, and the welding position of the stiffening plate 6 is 100mm-200mm higher than the top surface of the cup foundation of the steel column 2; in this embodiment, as shown in fig. 5 and 6, four bolts 3 are arranged and respectively buried in the front, back, left and right sides of the cup mouth 1, and are arranged in a central symmetry manner, and the top of each bolt 3 is 250mm higher than the top of the foundation of the cup mouth 1.
S3, elevation adjustment: and adjusting the position of the first nut 4, and additionally arranging 1-2 flat washers 7 on the first nut 4 to enable the elevation of the top of each washer to be consistent with the elevation of the bottom of each stiffening plate 6.
S4, installing a steel column 2: the steel column 2 is provided with anchor bars 201, as shown in fig. 10, the bolts 3 are sleeved into the through holes 603 corresponding to the stiffening plates 6, the stiffening plates 6 are abutted against the plain washers 7, at this time, the perpendicularity of the steel column 2 is measured, if the perpendicularity of the steel column 2 does not meet the standard requirement, the perpendicularity of the steel column 2 is adjusted to meet the standard requirement by fine-adjusting the first nuts 4 in front, back, left and right, then 1-2 plain washers 7 are additionally arranged, and then two second nuts 5 are screwed into the bolts 3 to be locked and fixed.
S5, grouting: the concrete is directly poured to be flush with the foundation of the cup opening 1.
According to the method, a backing plate at the bottom of the cup mouth is not required to be paved, and wedge iron is not required to be arranged, bolts are arranged around the foundation of the cup mouth, during installation, the center alignment of the steel column can be realized by sleeving the reinforcing plates additionally arranged on the steel column into the center bolts around the cup mouth, and when the horizontal height and the verticality are adjusted, only the horizontal height of the first nuts around on the bolts is required to be adjusted, so that the problems that the steel column is difficult to position and the verticality is difficult to adjust are solved; the installation and adjustment time of the steel column is greatly shortened; meanwhile, the method does not need to wait for secondary grouting after the sequential grouting, the strength meets the requirement, the working procedures are saved, and the construction period is shortened.
The foregoing description of the preferred embodiments of the invention is not intended to limit the scope of the claims, but rather to cover all equivalent modifications within the scope of the present invention as defined by the appended claims.
Claims (3)
1. The construction method of the inserted steel column leg is characterized by comprising the following steps of:
s1, material preparation: preparing at least four bolts, wherein each bolt is provided with a first nut and a second nut, the first nut is positioned at the lower side of the second nut, and simultaneously, preparing reinforcing plates corresponding to the number of the bolts, and the reinforcing plates are provided with through holes corresponding to the diameters of the bolts;
s2, cup rim foundation construction and steel column manufacturing: when the cup rim foundation is constructed, bolts are buried around the top of the cup rim, the top of each bolt is 150-250 mm higher than the top of the cup rim foundation, and then the first nuts are screwed into the bolts; when the steel column is manufactured, the prepared stiffening plate is welded on the steel column according to a preset elevation;
s3, elevation adjustment: adjusting the position of the first nut according to the elevation of the stiffening plate;
s4, installing a steel column: the bolts are sleeved into the through holes corresponding to the stiffening plates, and the second nuts are screwed into the bolts to fix the steel columns;
s5, grouting: the concrete is poured to be flush with the cup rim foundation.
2. The construction method of the inserted steel column foot according to claim 1, wherein: in the step S4, after the bolts are sleeved into the through holes of the corresponding stiffening plates, if the perpendicularity of the steel column does not meet the standard requirement, the perpendicularity of the steel column is adjusted to meet the standard requirement by fine-adjusting the first nuts.
3. The construction method of the inserted steel column foot according to claim 1, wherein: and flat washers are additionally arranged on the upper side and the lower side of the stiffening plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310048683.7A CN116254926A (en) | 2023-02-01 | 2023-02-01 | Construction method of inserted steel column foot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310048683.7A CN116254926A (en) | 2023-02-01 | 2023-02-01 | Construction method of inserted steel column foot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116254926A true CN116254926A (en) | 2023-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310048683.7A Pending CN116254926A (en) | 2023-02-01 | 2023-02-01 | Construction method of inserted steel column foot |
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| Country | Link |
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| CN (1) | CN116254926A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240914A (en) * | 2023-02-27 | 2023-06-09 | 中国五冶集团有限公司 | Quick installation and accurate adjustment structure and method for cup-type foundation steel structure column |
-
2023
- 2023-02-01 CN CN202310048683.7A patent/CN116254926A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240914A (en) * | 2023-02-27 | 2023-06-09 | 中国五冶集团有限公司 | Quick installation and accurate adjustment structure and method for cup-type foundation steel structure column |
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