CN114000532B - Mounting and positioning method for cup-mouth foundation square steel column - Google Patents
Mounting and positioning method for cup-mouth foundation square steel column Download PDFInfo
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- CN114000532B CN114000532B CN202111362310.4A CN202111362310A CN114000532B CN 114000532 B CN114000532 B CN 114000532B CN 202111362310 A CN202111362310 A CN 202111362310A CN 114000532 B CN114000532 B CN 114000532B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 128
- 239000010959 steel Substances 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 239000004570 mortar (masonry) Substances 0.000 claims description 33
- 239000004567 concrete Substances 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011440 grout Substances 0.000 claims description 6
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 3
- 238000007613 slurry method Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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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
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
-
- 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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
-
- 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
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a method for installing and positioning a square steel column of a cup foundation, which comprises the steps of installing a positioning ruler through a slurry method, adjusting the elevation of the steel column to be installed through a slurry cushion, installing a positioning plate on the steel column to be installed after determining the positioning point through the positioning ruler, hoisting the steel column to be installed with the positioning plate to the inside of the cup foundation, and adjusting the perpendicularity of the steel column to be installed through a hoisting mechanism; the adopted parts have simple structures and are convenient to assemble, the seat slurry construction can be carried out after the cup rim foundation is finished, the size of the positioning plate can be measured, the working procedures are more closely connected, and the construction period is saved; the construction process of the leveling layer is avoided, and materials are saved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a mounting and positioning method for a square steel column of a cup foundation.
Background
The rim of a cup basis is a common basic form in the present building field, and the construction of rim of a cup basis finishes, possesses after certain concrete strength, can carry out the hoist and mount of steel column, and especially along with the height of current steel construction is higher and higher, the rim of a cup basis is done more and more big more, and large-scale rim of a cup basis steel column adopts square box type post usually.
Before a square column is hoisted in place, the steel column needs to be leveled and positioned, and for leveling the steel column, the conventional leveling method is that when a concrete cup foundation is constructed, the elevation of the cup bottom is cast to be 50mm lower than the elevation of the steel column bottom, before the steel column is hoisted, fine stone concrete with the height of 50mm and a certain grade is cast in the cup foundation to be used as a leveling layer to reach the elevation of the column bottom, and then the steel column is hoisted; for positioning the steel column, wedge-shaped clamps are usually added in four directions between the steel column and the inner wall of the cup opening foundation, and the steel column is positioned by hammering the wedge-shaped clamps in the four directions through a steel hammer to move the steel column for positioning or by placing a jack to adjust the position of the steel column.
In actual construction, because the influence factor that the concrete screed-coat received is more in the construction, consequently the screed-coat is difficult to play the effect of making level, and the precision of steel column bottom elevation control is difficult to reach. In addition, when the steel column is positioned, the leveling layer is made of fine aggregate concrete, friction force between the steel column and the fine aggregate concrete is large, the steel column is difficult to move when the steel column is positioned, if the steel column is placed into the steel column, deviation is large, the wedge-shaped clamp needs to be hammered repeatedly or a jack needs to be used for positioning, and the steel column is prone to overturning or the bottom of the steel column is prone to deforming.
Disclosure of Invention
In view of the above, the invention provides a mounting and positioning method for a square steel column of a cup foundation, and aims to solve the problem that the mounting accuracy of the steel column is difficult to ensure during the construction of the conventional cup foundation.
The invention provides a mounting and positioning method of a cup-mouth foundation square steel column, which comprises the following steps:
step 2, respectively determining a positioning point at the position where the two ends of each edge of the positioning ruler are away from the outer edge of the steel column to be installed by a preset distance, and determining the center of the foundation pit at the bottom of the cup rim foundation;
step 4, measuring the distance from the side edge of the steel column to be installed to the inner wall of the cup rim foundation according to the position of the positioning ruler at the bottom of the cup rim foundation, manufacturing a plurality of positioning plates according to the distance, and installing each positioning plate on the side edge of the steel column to be installed;
and 5, moving away the positioning ruler, hoisting the steel column to be installed with the plurality of positioning plates into the cup foundation, and installing lifting mechanisms on two sides of the steel column to be installed to adjust the verticality of the steel column.
Further, in the method for installing and positioning the square steel column based on the cup rim, in the step 1, a flat steel is used for manufacturing a positioning ruler, so that the shape of the positioning ruler is consistent with that of the steel column to be installed, and each side length of the positioning ruler is larger than each outer side length of the square steel column to be installed.
Further, in the installation and positioning method of the square steel column based on the cup rim, the positioning rule is subjected to squaring treatment, and a plurality of supporting pieces are lapped on the positioning rule.
Further, in the method for installing and positioning the square steel column based on the cup rim, the supporting piece is obliquely overlapped on two adjacent edges of the positioning ruler.
Further, in the method for installing and positioning the square steel column based on the cup rim, in the step 2, each positioning point is 30-50mm away from the outer edge of the steel column to be installed.
Further, in the method for installing and positioning the cup foundation square steel column, in the step 3, the length and the width of the seat mortar pit are respectively 60-80mm and 40-60mm larger than the length and the width of the seat mortar cushion plate.
Further, in the method for installing and positioning the square steel column of the cup foundation, in the step 3, the depth of the mortar pit chiseling into the concrete surface at the bottom of the cup foundation is greater than or equal to 30mm, and the thickness of the mortar concrete layer is greater than or equal to 50mm.
Further, in the method for installing and positioning the square steel column based on the cup rim, in the step 3, the mortar cushion plate is installed by striking the mortar cushion plate with hand pressure, a wood hammer or a hand hammer, so that the mortar cushion plate descends stably, and the mortar concrete surface is ensured to be 2-5mm lower than the mortar cushion plate.
Further, in the method for installing and positioning the square steel column of the cup rim foundation, in the step 4, the cantilever rod is placed on the top surface of the cup rim foundation, the magnetic plummet is suspended on the cantilever rod, the magnetic plummet is aligned to the corresponding positioning point, and the distance from the side surface of the steel column to be installed to the inner wall of the cup rim foundation is measured.
Further, in the method for installing and positioning the square steel column based on the cup rim, in the step 5, the guy cables are respectively installed on the four sides of the steel column, the chain blocks are respectively arranged at each guy cable and the corresponding anchoring point, and the guy cables are lifted by the chain blocks to adjust the verticality of the steel column.
According to the installation and positioning method of the square steel column of the cup-mouth foundation, the positioning ruler is installed through a slurry setting method, the elevation of the steel column to be installed is adjusted through the slurry setting cushion, the positioning point is determined through the positioning ruler, the positioning plate is installed on the steel column to be installed, the steel column to be installed with the positioning plate is hoisted to the interior of the cup-mouth foundation, the verticality of the steel column to be installed is adjusted through the hoisting mechanism, and the cup-mouth foundation steel column is favorably and quickly positioned and hoisted; the adopted parts have simple structures and are convenient to assemble, the seat slurry construction can be carried out after the cup rim foundation is finished, the size of the positioning plate can be measured, the working procedures are more closely connected, and the construction period is shortened; the complicated construction process of the leveling layer is avoided, and the material is greatly saved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flow chart illustrating a method for installing and positioning a square steel column based on a cup rim according to an embodiment of the present invention;
fig. 2 is a schematic structural view illustrating manufacturing of a positioning rule in the method for mounting and positioning a square steel column on a cup rim base according to the embodiment of the present invention;
fig. 3 is a schematic structural view illustrating a method for installing and positioning a square steel column based on a cup rim according to the present invention, in which the position of a slurry cushion plate is determined according to a positioning point;
fig. 4 is a schematic structural diagram of a foundation slurry foundation pit excavated in the method for installing and positioning the cup foundation square steel column according to the embodiment of the present invention;
fig. 5 is a schematic structural view of a seat slurry foundation pit and a seat slurry cushion plate in the method for mounting and positioning a square steel column based on a cup rim provided in the embodiment of the present invention;
fig. 6 is a schematic structural view illustrating the position determination of the positioning plate in the installation and positioning method for the cup-rim-based square steel column according to the embodiment of the present invention;
fig. 7 is a schematic distribution diagram of positioning plates in the method for mounting and positioning a square steel column on a cup rim base according to the embodiment of the present invention;
fig. 8 is a schematic structural view illustrating a positioning plate welded to a steel column to be installed in the method for installing and positioning a cup-rim-based square steel column according to the embodiment of the present invention;
fig. 9 is a schematic structural view of a method for mounting and positioning a square steel column based on a cup rim according to an embodiment of the present invention, in which a magnetic line weight is used to measure a distance between a positioning point and a side wall of the steel column;
fig. 10 is a schematic structural view illustrating that a steel column to be installed with a positioning plate is hoisted into a cup foundation in the installation positioning method of a square steel column of a cup foundation according to the embodiment of the present invention;
fig. 11 is a schematic diagram of adjusting the perpendicularity of a steel column in the installation and positioning method of a cup-rim-based square steel column according to the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the method for installing and positioning the square steel column on the cup-mouth basis according to the embodiment of the invention includes the following steps:
and S1, manufacturing a positioning ruler according to the center of the bottom surface of the cup rim foundation, the inner wall profile 1 of the cup rim foundation and the outer edge length of the steel column 6 to be installed.
With reference to fig. 2 and 3, a positioning rule is made of flat steel, so that the shape of the positioning rule is consistent with that of the steel column 6 to be installed, and each side length of the positioning rule 2 is greater than each outer side length of the square steel column to be installed. More specifically, 50 x 5 flat steel is used to make a square spacer that is 25mm longer than each outer edge of the square steel column to be installed. Wherein, the center of each outer edge of the steel column 6 to be installed is a datum point of each edge of the positioning ruler 2.
With continued reference to fig. 2 and 3, in this step, the positioning rule 2 is squared and a plurality of support members 3 are lapped on the positioning rule 2. The set rule 2 is placed on the base bottom surface 4 of the rim of a cup and the center of the set rule 2 is ensured to be collinear with the center of the base bottom surface 4 of the rim of a cup.
Furthermore, the supporting part 3 obliquely overlaps two adjacent edges of the positioning rule 2. Support piece 3 can weld on two arbitrary adjacent edges of positioning rule 2, also can connect on positioning rule 2 through the mode of opening the dismantlement, in this embodiment, can set up a plurality of support piece 3, for example set up two support piece 3, and two support piece 3 parallel arrangement are on positioning rule 2.
And S2, respectively determining a positioning point at the position where the two ends of each edge of the positioning ruler 2 are away from the outer edge of the steel column 6 to be installed by a preset distance, and determining the center of the foundation pit at the bottom of the cup rim foundation.
With continuing reference to fig. 2 and 3, each of the positioning points a is located 30-50mm from the outer edge of the steel column 6 to be installed. In this embodiment, two positioning points a are determined on each side of the positioning rule 2 to form 8 positioning points a, which facilitates determining the size of the positioning plate while determining the position of the seat cushion plate.
And S3, excavating a base slurry pit 14, mounting a base slurry cushion plate 15 in the base slurry pit 14, and controlling the elevation and the level of the base slurry cushion plate 15 through a measuring instrument in the process. In this step, the elevation of the steel column 6 to be installed is adjusted by adjusting the height of the seat slurry pad 15.
Specifically, step S3 further includes the following substeps:
and a substep S31 of marking out the foundation and then starting to chisel the seat slurry pit 14. Referring to fig. 4 to 5, a seat grout hole 14 is chiseled out by a pneumatic shovel, a drill rod and a hand hammer at the basic position of the equipment provided with the seat grout pad 15. When the sizes of the mortar sitting pit 14 and the mortar sitting cushion plate 15 are determined, the length and the width of the mortar sitting pit 14 are respectively 60-80mm and 40-60mm larger than those of the mortar sitting cushion plate 15, the depth of the mortar sitting pit 14 chiseling into the concrete surface at the bottom of the cup foundation is not less than 30mm, the thickness of the mortar sitting concrete layer is not less than 50mm, if reinforcing steel bars are met, the mortar sitting pit is determined according to the situation, the mortar layer must be removed, and loose concrete blocks in the pit must be removed after the mortar sitting pit is removed.
In addition, the position of the seat slurry pit 14 is determined, and the seat slurry cushion plate 15 is placed, so that the edge of the base of the equipment is exposed by the flat cushion plate by 10mm-30mm.
In the substep S32, blowing off impurities in the slurry setting pit 14 by using compressed air, fully infiltrating the concrete pit by using water, and removing accumulated water and impurities in the pit after about 30 minutes to ensure that oil stains cannot be formed in the pit;
and a substep S33, coating a layer of cement paste in the grout hole 14 to facilitate the bonding of new and old concrete. In this step, only a thin layer of cement paste needs to be applied.
And substep S34, mixing the concrete. Pouring cement, sand and stones on a stirrer or a steel plate for stirring respectively by weighing through a platform scale, and adding water for stirring after the mixture is uniformly stirred.
And a substep S35, tamping the concrete. And pouring the stirred concrete into the mortar sitting pit 14, tamping layer by layer, wherein the height of each layer is preferably 40mm, the tamping is performed to the reverse grouting degree, and the surface of the last layer of concrete is in an arc shape with a high middle and low periphery so as to discharge air when the mortar sitting base plate 15 is placed.
And a substep S36 of placing the seat cushion plate 15. When the concrete surface does not bleed or water stain disappears (the concrete time depends on the cement performance, the concrete mixing proportion and the construction season), the base mortar backing plate 15 can be placed and the elevation can be measured. The mortar cushion plate 15 is flatly placed on the tamped concrete, and the mortar cushion plate is knocked by hand, a wooden hammer or a board with a hand hammer to enable the mortar cushion plate to stably descend, so that oblique knocking is avoided during knocking, and air is prevented from entering between the mortar cushion plate 15 and the contact surface of the concrete. During knocking, a hammer is used for knocking the middle part of the seat pulp backing plate 15 so as to prevent the phenomenon of hollowing around the seat pulp backing plate 15. The seat cushion 15 may have a thickness of 15-20mm.
And a substep S37, checking elevation and levelness. And measuring the elevation of the upper plane of the seat slurry cushion plate 15, checking the levelness of the upper plane by using a horizontal ruler, and after the repeated operation meets the design requirement, leveling the concrete around the seat slurry cushion plate 15 to ensure that the concrete is firm, wherein the surface of the concrete is 2-5mm lower than the upper surface of the seat slurry cushion plate 15. For precision equipment, or major host equipment, the elevation and levelness of the setting grout pad 15 are rechecked again before the initial setting of the concrete.
And substep S38, curing. Covering a straw bag on the top of the slurry pit 14, watering, moistening and curing for more than 24 hours, if construction is carried out at low temperature below 5 ℃, taking heat preservation measures, otherwise, construction is not allowed. Collision and vibration during curing must not occur.
And a substep S39, removing the mold. And (3) allowing the die to be removed after the seat slurry is maintained for 24 hours, and avoiding colliding the seat slurry backing plate 15 during die removal.
And S4, as shown in the figures 6 to 8, measuring the distance from the side edge of the steel column 6 to be installed to the inner wall of the cup rim foundation according to the position of the positioning ruler 2 at the bottom of the cup rim foundation, manufacturing a plurality of positioning plates according to the distance, and installing each positioning plate on the side edge of the steel column 6 to be installed. In this step, 8 locating plates 10 can be set up, can weld 8 locating plates in the position department of 50mm apart from 6 every corners of waiting to install the steel column through welding point b, set up a locating plate respectively on two edges of 50mm department apart from 6 every corners of waiting to install the steel column promptly. The length of the positioning plate is the horizontal distance from the side edge of the steel column 6 to be installed to the inner wall of the cup opening base. The width of the positioning plate can be 3-5 cm.
Continuing to refer to fig. 9, the cantilever bar 7 is placed on the top surface 5 of the cup rim foundation, the magnetic line weight 8 is suspended on the cantilever bar 7, the magnetic line weight 8 is aligned to the corresponding positioning point a, and the distance from the side surface of the steel column 6 to be installed to the inner wall of the cup rim foundation is measured. The magnetic line weight 8 is tied on the cantilever lever 7 through the nylon rope 9, and the positioning point a is found through the magnetic line weight 8, so that the measuring precision is ensured.
And S5, as shown in FIG. 10, removing the positioning ruler 2, hoisting the steel column 6 to be installed with the positioning plates 10 into the cup foundation, and installing lifting mechanisms on two sides of the steel column 6 to be installed to adjust the perpendicularity of the steel column. The lifting mechanism may comprise a chain block.
Referring to fig. 11, guy cables 11 are respectively installed on four sides of the steel column, a chain block 13 is respectively arranged on each guy cable 11 and the corresponding anchoring point 12, and the verticality of the steel column to be installed is adjusted by lifting the guy cables 11 through the chain block 13. During the concrete implementation, the promotion end of chain block is connected with the anchor point, and the couple of chain block is connected with the guy rope. After the steel column is in place and adjusted, the steel column can be grouted, and construction is convenient.
In conclusion, according to the installation and positioning method of the square steel column of the cup-mouth foundation, the positioning ruler is installed through the slurry setting method, the elevation of the steel column to be installed is adjusted through the slurry setting cushion, the positioning point a is determined through the positioning ruler, the positioning plate is installed on the steel column to be installed, the steel column to be installed with the positioning plate is hoisted to the interior of the cup-mouth foundation, the verticality of the steel column to be installed is adjusted through the hoisting mechanism, and the cup-mouth foundation steel column is favorably and quickly positioned and hoisted; the adopted parts have simple structures and are convenient to assemble, the seat mortar construction can be carried out after the cup rim foundation is finished, the size of the positioning plate is measured, the working procedures are more closely connected, and the construction period is shortened; the complicated construction process of the leveling layer is avoided, and the material is greatly saved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A mounting and positioning method for a cup foundation square steel column is characterized by comprising the following steps:
step 1, manufacturing a positioning ruler according to the center of the bottom surface of the cup-rim foundation, the contour of the inner wall of the cup-rim foundation and the outer edge length of a steel column to be installed;
step 2, respectively determining a positioning point at the position, which is away from the outer edge of the steel column to be installed by a preset distance, of two ends of each edge of the positioning ruler, and determining the center of the foundation pit at the bottom of the cup rim foundation;
step 3, excavating a base slurry pit, and mounting a base slurry base plate in the base slurry pit, wherein the elevation and the level of the base slurry base plate are controlled by a measuring instrument in the process;
step 4, measuring the distance from the side edge of the steel column to be installed to the inner wall of the cup rim foundation according to the position of the positioning ruler at the bottom of the cup rim foundation, manufacturing a plurality of positioning plates according to the distance, and installing each positioning plate on the side edge of the steel column to be installed; placing a cantilever rod on the top surface of the cup rim foundation, and suspending a magnetic line pendant on the cantilever rod to align the magnetic line pendant to a corresponding positioning point, so as to measure the distance from the side surface of the steel column to be installed to the inner wall of the cup rim foundation;
and 5, moving away the positioning ruler, hoisting the steel column to be installed with a plurality of positioning plates into the cup foundation, and installing lifting mechanisms on two sides of the steel column to be installed to adjust the verticality of the steel column.
2. The method for installing and positioning the square steel column based on the cup opening as claimed in claim 1, wherein in the step 1, a positioning ruler is made of flat steel, so as to ensure that the shape of the positioning ruler is consistent with that of the steel column to be installed, and each side length of the positioning ruler is greater than each outer side length of the steel column to be installed.
3. The method as claimed in claim 2, wherein the positioning rule is squared and a plurality of support members are lapped on the positioning rule.
4. The method as claimed in claim 3, wherein the support member obliquely overlaps two adjacent edges of the positioning rule.
5. The method as claimed in claim 1, wherein in the step 2, each of the positioning points is spaced from the outer edge of the steel column to be installed by 30-50mm.
6. The method for installing and positioning the cup foundation square steel column according to claim 1, wherein in the step 3, the length and the width of the mortar pit are respectively 60-80mm and 40-60mm larger than the length and the width of the mortar pad.
7. The method for installing and positioning the square steel column of the cup-mouth foundation according to claim 1, wherein in the step 3, the depth of the setting grout chisel into the concrete surface at the bottom of the cup-mouth foundation is greater than or equal to 30mm, and the thickness of the setting grout concrete layer is greater than or equal to 50mm.
8. The method for installing and positioning the square steel column on the cup-mouth foundation according to claim 1, wherein in the step 3, the mortar board is installed by striking the mortar board with hand pressure, a wooden hammer or a hand hammer, so that the mortar board descends stably and the mortar concrete surface is ensured to be 2-5mm lower than the mortar board.
9. The method as claimed in claim 1, wherein in the step 5, guy cables are respectively installed on four sides of the steel column, and a chain block is respectively arranged at each guy cable and the corresponding anchoring point, and the guy cables are lifted by the chain block to adjust the verticality of the steel column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362310.4A CN114000532B (en) | 2021-11-17 | 2021-11-17 | Mounting and positioning method for cup-mouth foundation square steel column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362310.4A CN114000532B (en) | 2021-11-17 | 2021-11-17 | Mounting and positioning method for cup-mouth foundation square steel column |
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| Publication Number | Publication Date |
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| CN114000532A CN114000532A (en) | 2022-02-01 |
| CN114000532B true CN114000532B (en) | 2023-02-21 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2045625C1 (en) * | 1991-12-02 | 1995-10-10 | Алексей Алексеевич Ковалевский | Method for installation of pile in overfrozen ground |
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| CN212742614U (en) * | 2020-06-12 | 2021-03-19 | 中煤第三建设集团机电安装工程有限责任公司 | Foundation inner stand column positioning and mounting structure |
| CN213363656U (en) * | 2020-09-03 | 2021-06-04 | 付志成 | Steel pipe column verticality adjusting device |
| CN112962689A (en) * | 2021-02-09 | 2021-06-15 | 中建科技集团有限公司 | Slope ratio control method |
| CN113187247A (en) * | 2021-04-06 | 2021-07-30 | 湖北省工业建筑集团有限公司 | Construction method of cast-in-situ cup-mouth foundation steel structure |
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2021
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| RU2045625C1 (en) * | 1991-12-02 | 1995-10-10 | Алексей Алексеевич Ковалевский | Method for installation of pile in overfrozen ground |
| CN103925862A (en) * | 2014-05-07 | 2014-07-16 | 中冶建工集团有限公司 | Installation adjustment method for RH finery lifting frame guide rails |
| CN106545028A (en) * | 2015-09-16 | 2017-03-29 | 上海宝冶集团有限公司 | Light Steel-Structure Factory with Steel rim of a cup post method for rapidly mounting |
| CN207063552U (en) * | 2017-07-06 | 2018-03-02 | 中建八局第三建设有限公司 | A kind of steel pipe column locator |
| WO2019036807A1 (en) * | 2017-08-22 | 2019-02-28 | Tezyzy Inc. | Magnetic steel framing and construction tools, methods and combinations |
| CN212742614U (en) * | 2020-06-12 | 2021-03-19 | 中煤第三建设集团机电安装工程有限责任公司 | Foundation inner stand column positioning and mounting structure |
| CN111827374A (en) * | 2020-07-16 | 2020-10-27 | 中国二十二冶集团有限公司 | Construction method for assisting in extension measurement of perpendicularity of steel column in reverse construction method |
| CN213363656U (en) * | 2020-09-03 | 2021-06-04 | 付志成 | Steel pipe column verticality adjusting device |
| CN112962689A (en) * | 2021-02-09 | 2021-06-15 | 中建科技集团有限公司 | Slope ratio control method |
| CN113187247A (en) * | 2021-04-06 | 2021-07-30 | 湖北省工业建筑集团有限公司 | Construction method of cast-in-situ cup-mouth foundation steel structure |
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| CN114000532A (en) | 2022-02-01 |
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