CN117027392A - Construction method of steel column and construction method of station building - Google Patents
Construction method of steel column and construction method of station building Download PDFInfo
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- CN117027392A CN117027392A CN202310963654.3A CN202310963654A CN117027392A CN 117027392 A CN117027392 A CN 117027392A CN 202310963654 A CN202310963654 A CN 202310963654A CN 117027392 A CN117027392 A CN 117027392A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 74
- 239000010959 steel Substances 0.000 title claims abstract description 74
- 238000010276 construction Methods 0.000 title claims abstract description 50
- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 22
- 238000003466 welding Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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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
-
- 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
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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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
-
- 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
-
- 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
- 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
-
- 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
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
-
- 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
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The application relates to a construction method of a steel column and a construction method of a station building, wherein the construction method of the steel column comprises the following steps of. S1, pouring a first concrete bearing platform, and embedding an anchor bolt bracket in the first concrete bearing platform, wherein the anchor bolt bracket comprises a plurality of screw rods extending out of the first concrete bearing platform; s2, installing a section of column on the anchor bolt support, enabling the screw rod to penetrate through the bottom plate of the section of column, arranging nuts respectively pressed on two sides of the bottom plate on the screw rod, and adjusting the nuts on each screw rod to enable the section of column to incline outwards; s3, pouring a second concrete bearing platform; s4, hoisting the two sections of columns to enable the two sections of columns to be connected with the exposed ends of the two sections of columns; s5, hoisting the three-section column, connecting the ends of the three-section column and the two-section column, and installing a temporary support frame between the top plate of the three-section column and the second concrete bearing platform. The application ensures the installation precision and the installation stability of the steel column and shortens the construction period of the station building.
Description
Technical Field
The application relates to the technical field of station building construction, in particular to a construction method of a steel column and a station building construction method.
Background
In the construction process of a station house, a steel column is generally required to be constructed to support a roof, and for some special station houses, the bottom of the steel column is required to be arranged in an inclined arrangement structure due to the consideration of space utilization rate or artistry, and the inclined arrangement steel column has the problems of difficult positioning and difficult installation. When the roof is installed, the stability of the front construction structure needs to be considered, namely, the situation that the adjacent three-span underground space structure is poured and can be backfilled after reaching the strength needs to be waited, and then the roof truss is hoisted, so that the steel column has enough stability to support the roof in the construction process of the roof, the construction period is prolonged, particularly, the front construction progress is delayed, and the follow-up roof is difficult to construct as expected.
In summary, in the prior art, the positioning and mounting of the inclined steel column are difficult, and the construction period of the roof is too long.
Disclosure of Invention
Based on the above, it is necessary to provide a construction method of a steel column and a construction method of a station building, and the specific technical schemes are as follows.
The construction method of the steel column is characterized in that the steel column comprises a first section of column, a second section of column and a third section of column which are connected in sequence; the two sections of columns comprise a first section inclined in the same direction as the one section of columns and a second section arranged vertically, and the three sections of columns incline towards the inner side to enable the steel columns to be in an outwards protruding state; the construction method comprises the following steps:
s1, pouring a first concrete bearing platform, and embedding an anchor bolt bracket in the first concrete bearing platform, wherein the anchor bolt bracket comprises a plurality of screw rods extending out of the first concrete bearing platform;
s2, installing a section of column on the anchor bolt support, enabling the screw rod to penetrate through the bottom plate of the section of column, arranging nuts respectively pressed on two sides of the bottom plate on the screw rod, and adjusting the nuts on each screw rod to enable the section of column to incline outwards;
s3, pouring a second concrete bearing platform above the first concrete bearing platform to expose the end part of a section of column outwards;
s4, hoisting the two sections of columns to enable the two sections of columns to be connected with the exposed ends of the two sections of columns; brackets are symmetrically connected to two sides of the two sections of columns, and temporary support rods are arranged between the brackets and the second concrete bearing platform;
s5, after the outer wrapping concrete is not poured and the temporary supporting rod is not removed, or the outer wrapping concrete is poured at the exposed end of one section of column and the first section of the two sections of columns and the temporary supporting rod is removed, the three sections of columns are hoisted, so that the ends of the three sections of columns are connected with the ends of the two sections of columns, and a temporary supporting frame is installed between the top plate of the three sections of columns and the second concrete bearing platform.
Further, the process of embedding the anchor bolt bracket in the first concrete bearing platform comprises the following steps:
s11, pouring a cushion cap layer, embedding first embedded parts and second embedded parts in the cushion cap layer, surrounding the first embedded parts into a rectangular shape, and arranging the second embedded parts outside the rectangular shape;
s12, respectively welding angle steel on the first embedded part;
s13, welding the anchor bolt bracket on the angle steel; the anchor bolt support comprises a plurality of screws and a rectangular frame, wherein a connecting plate is welded at the bottom end of each screw, so that the connecting plate is welded with the angle steel, and the rectangular frame is sequentially welded with the plurality of screws;
s14, welding a first diagonal brace on the second embedded part, and welding the first diagonal brace with the rectangular frame to enable the first diagonal brace to obliquely support the anchor bolt bracket;
s15, pouring a first concrete bearing platform, and reserving part of screws to extend out of the first concrete bearing platform.
Further, a third embedded part is embedded when the first concrete bearing platform is poured, so that the third embedded part is positioned at the internal corner of a section of column; and after adjusting the nuts on each screw rod to enable the section of the column to incline outwards, installing a second diagonal brace between the section of the column and the third embedded part.
Further, the nut comprises a fixed nut positioned above the bottom plate and an adjusting nut positioned below the bottom plate; an adjusting seat is arranged between the adjusting nut and the bottom plate; the adjusting seat comprises a seat body and an adjusting block, a unthreaded hole for accommodating the screw rod to pass through is formed in the seat body, an adjusting groove is formed in the surface of the seat body, and the bottom wall of the adjusting groove is arc-shaped; the adjusting block comprises a first plane propped against the bottom plate and a first cambered surface in sliding fit with the bottom wall of the adjusting groove, so that the inclination of the first plane is changed when the adjusting block slides relative to the bottom wall of the adjusting groove; the process of adjusting the height of the nuts on each screw rod to enable one section of column to incline outwards comprises the following steps:
s21, screwing a fixed nut on each screw rod, and reserving an adjusting space for the bottom plate;
s22, adjusting the bottom plate to the height and the inclination of the design state;
s23, screwing each adjusting nut to drive each adjusting seat to move to the first plane of the moving block to prop against the bottom of the bottom plate;
s24, tightening the fixing bolt.
Further, the end connection of a section post has first locating plate, the end connection of two sections posts has the second locating plate, first locating plate aligns with the second locating plate and first locating plate and second locating plate bolt respectively with the fixed plate.
A construction method of a station building comprises the following steps:
t1, constructing a steel column according to the construction method of any one of the above;
t2, hoisting a main truss, connecting the main truss with three sections of columns, and supporting the main truss by using a temporary support frame;
t3, hoisting the secondary trusses, and fixing the secondary trusses between adjacent main trusses;
t4, hoisting rod pieces between the secondary trusses to finish the installation of the roof;
and T5, unloading the temporary support frame after the concrete reaches the design strength, and transferring the load of the roof to the top of the column.
Further, the temporary support frame comprises four upright posts, inclined rods, a steel frame platform and a positioning jig frame; the four vertical rods are respectively fixed on the second concrete bearing platform through third embedded parts, and a plurality of diagonal rods are connected between the adjacent vertical rods; the steel frame platform is arranged at the top of the upright post; the positioning jig comprises a positioning column fixed on a steel frame platform and a jig plate fixed on the positioning column in a vertical arrangement mode; after the main truss is pressed on the jig frame plate, the clamping plates are welded on the jig frame plate, so that the clamping plates are positioned on two sides of the main truss to limit the main truss.
Further, when the temporary support frame is unloaded, the tire frame plates are cut for a plurality of times at the same height, the cutting amount is controlled to be 5-10 mm each time, the roof does not generate downward displacement after a certain section of tire frame plate is cut, and finally the rest temporary support frame is removed.
The beneficial effects are that: 1. according to the construction method for the steel column, the concrete bearing platform is poured in layers, the anchor bolt support is embedded when the first concrete bearing platform is poured, the steel column is divided into three sections and fixed on the anchor bolt support, the degree of the section of the column is adjusted by utilizing the screw and the nut, and the section of the column is ensured to be accurately adjusted to a design inclination state; pouring a second concrete bearing platform to expose a section of the column, and fixing the section of the column by using the second concrete bearing platform to ensure the stability of installation of the section of the column; thereby ensuring the installation accuracy and the installation stability of the steel column.
2. According to the construction method for the steel column, the temporary supporting rods are used for supporting the two sections of columns after the two sections of columns are constructed, the three sections of columns are installed after the two sections of columns are subjected to outsourcing pouring, and the temporary supporting frames are used for supporting the three sections of columns, so that the stability of the steel column is improved, and the steel column is prevented from toppling in the construction process.
3. According to the construction method of the steel column, when the inclination of one section of column is regulated, the regulating block on the regulating seat is used for supporting the bottom plate, so that the supporting area is increased, local damage caused by concentrated stress distribution is avoided, and the problem that the installation precision cannot meet the design requirement due to instability of one section of column is avoided.
4. According to the construction method of the station building, provided by the application, roof construction can be carried out without waiting for the poured bearing platform to reach the strength, the temporary supporting frames of the three sections of columns are used for supporting the roof in the construction process, the steel column is not subjected to the load of the roof, when the construction is completed and the lower structure reaches the strength, the load is transferred to the steel column, the steel column is not influenced by the load of the roof in the construction process, and the construction period is shortened.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a construction flow diagram of a steel column;
FIG. 2 is a schematic view of a steel column;
FIG. 3 is a schematic view of a casting table mat;
FIG. 4 is a schematic view of the first diagonal brace after installation;
FIG. 5 is a schematic illustration of the casting of the first concrete platform;
FIG. 6 is a schematic view of a section of post installed;
FIG. 7 is a schematic view of the installation of the base plate and the screw;
FIG. 8 is a schematic view of a second concrete platform after casting;
FIG. 9 is a schematic view of the two sections of columns after being lifted;
FIG. 10 is a schematic illustration of a node connection between a column segment and a column segment;
FIG. 11 is a schematic view of the three columns after hoisting;
FIG. 12 is a construction flow diagram of a station building;
FIG. 13 is a schematic view of an arrangement of temporary support frames;
FIG. 14 is a schematic view of the temporary support frame mated with the main truss;
FIG. 15 is a schematic view of an arrangement of a positioning jig;
reference numerals illustrate: 1. a section of column; 2. two sections of columns; 3. three-section column; 4. a first section; 5. a second section; 6. an anchor bolt bracket; 7. a screw; 8. a cushion cap cushion layer; 9. a first buried member; 10. a second buried member; 11. angle steel; 12. a rectangular frame; 13. a first diagonal brace; 14. a first concrete platform; 15. a fixing nut; 16. an adjusting nut; 17. an adjusting seat; 18. a base; 19. an adjusting block; 20. an adjustment tank; 21. a first plane; 22. a first cambered surface; 23. a third buried member; 24. a second diagonal brace; 25. the second concrete bearing platform; 26. a temporary support rod; 27. a first positioning plate; 28. a second positioning plate; 29. a fixing plate; 30. a temporary support frame; 31. a main truss; 32. a vertical rod; 33. a diagonal rod; 34. a steel frame platform; 35. positioning the jig frame; 36. positioning columns; 37. a tire frame plate; 38. and (5) clamping plates.
Detailed Description
In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Example 1
Referring to fig. 1, the present embodiment provides a construction method of a steel column, and referring to fig. 2, the steel column includes a first section of column 1, a second section of column 2, and a third section of column 3 connected in sequence; the first section of column 1 inclines towards the outside, the second section of column 2 includes the first section 4 that inclines with first section of column 1 syntropy and is vertical arrangement's second section 5, the third section of column 3 inclines towards the inboard, makes the steel column be outwards bellied state. Because of the inclined state of the area of the section of the column 1, the section of the column 1 is ensured to reach the design and installation precision in the installation process, and the stability of the section of the column 1 after installation is ensured.
Referring to fig. 1, the method of constructing the steel column includes the steps of:
s1, pouring a first concrete bearing platform 14, and embedding an anchor bolt bracket 6 in the first concrete bearing platform 14, wherein the anchor bolt bracket 6 comprises a plurality of screw rods 7 extending out of the first concrete bearing platform 14;
specifically, in step S1, the process of embedding the anchor bracket 6 in the first concrete cap 14 includes:
s11, pouring a cushion cap layer 8, embedding first embedded parts 9 and second embedded parts 10 in the cushion cap layer 8, encircling the four first embedded parts 9 into a rectangular shape, and arranging the four second embedded parts 10 on the outer side of the rectangular shape; the state of which is shown in fig. 3.
S12, respectively welding angle steels 11 on the first embedded parts 9; the angle steel 11 is used as a base of the anchor bolt bracket 6, and the height of the anchor bolt bracket 6 can be adjusted by adjusting the length of the angle steel 11, so that the height of the steel column is adjusted.
S13, welding the anchor bolt bracket 6 on the angle steel 11; the anchor bolt support 6 comprises a plurality of screw rods 7 and a rectangular frame 12, wherein a connecting plate is welded at the bottom end of each screw rod 7, so that the connecting plate is welded with the angle steel 11, and the rectangular frame 12 is welded with the screw rods 7 in sequence.
S14, welding a first diagonal brace 13 on the second embedded part 10, and welding the first diagonal brace 13 with the rectangular frame 12 to enable the first diagonal brace 13 to obliquely support the anchor bolt bracket 6; the state of which is shown in fig. 4; the anchor bolt bracket 6 is supported by the first diagonal braces 13, so that the stability of the anchor bolt bracket 6 in the process of pouring the first concrete bearing platform 14 is ensured, and the deviation in the pouring process is avoided; after the first concrete bearing platform 14 is poured, the screw rod 7 and the rectangular frame 12 are used as reinforcing structures, and the bonding strength between the screw rod 7 and the first concrete bearing platform 14 is reinforced, so that the stability of the steel column after being installed is ensured.
S15, pouring the first concrete bearing platform 14 to the elevation of-10.250 m, and reserving part of the screw rods 7 to extend out of the first concrete bearing platform 14. The state of which is shown in fig. 5.
S2, installing a section of column 1 on the anchor bolt bracket 6, enabling the screw rod 7 to penetrate through the bottom plate of the section of column 1, arranging nuts respectively pressed on two sides of the bottom plate on the screw rod 7, and adjusting the nuts on each screw rod 7 to enable the section of column 1 to incline outwards; the state of which is shown in fig. 6.
In particular, referring to fig. 7, for ease of displaying the concealed floor, the nut includes a securing nut 15 located above the floor and an adjusting nut 16 located below the floor; an adjusting seat 17 is arranged between the adjusting nut 16 and the bottom plate; the adjusting seat 17 comprises a seat body 18 and an adjusting block 19, a light hole for accommodating the screw rod 7 to pass through is formed in the seat body 18, an adjusting groove 20 is formed in the surface of the seat body 18, and the bottom wall of the adjusting groove 20 is arc-shaped; the adjusting block 19 comprises a first plane 21 propped against the bottom plate and a first cambered surface 22 in sliding fit with the bottom wall of the adjusting groove 20, so that the inclination of the first plane 21 is changed when the adjusting block 19 slides relative to the bottom wall of the adjusting groove 20; the process of adjusting the height of the nuts on each screw 7 to tilt one section of the column 1 outwards comprises the following steps:
s21, screwing the fixing nuts 15 on the screws 7 to reserve an adjusting space for the bottom plate;
s22, adjusting the bottom plate to the height and the inclination of the design state;
s23, screwing each adjusting nut 16 to drive each adjusting seat 17 to move to the first plane 21 of the moving block to prop against the bottom of the bottom plate;
s24, tightening the fixing bolt.
When adjusting the gradient of a section of post 1, utilize adjusting block 19 on adjusting seat 17 to support the bottom plate, improve area of support, avoid stress distribution to concentrate and cause local destruction to avoid a section of post 1 unstability leads to the installation accuracy unable meeting the design requirement.
Specifically, the third embedded part 23 is embedded when the first concrete bearing platform 14 is poured, so that the third embedded part 23 is positioned at the internal corner of a section of column 1; after adjusting the nuts on the respective screws 7 to tilt the section posts 1 toward the outside, a second diagonal brace 24 is installed between the section posts 1 and the third buried member 23. And the second diagonal bracing 24 is utilized to support one section of the column 1, so that the stability of one section of the column 1 is ensured.
S3, pouring a second concrete bearing platform 25 above the first concrete bearing platform 14, and pouring the second concrete bearing platform 25 to the elevation of-8.750 m to enable the end part of a section of column 1 to be exposed outwards; the state of which is shown with reference to fig. 8.
S4, hoisting the two sections of columns 2, and connecting the two sections of columns 2 with the exposed ends of the sections of columns 1; brackets are symmetrically connected to two sides of the two sections of columns 2, and temporary support rods 26 are arranged between the brackets and the second concrete bearing platform 25; the state of which is shown with reference to fig. 9.
Specifically, referring to fig. 10, a first positioning plate 27 is connected to an end of the first column section 1, a second positioning plate 28 is connected to an end of the second column section 2, the first positioning plate 27 is aligned with the second positioning plate 28, and the first positioning plate 27 and the second positioning plate 28 are respectively bolted to a fixing plate 29.
S5, after the outer-covered concrete is not poured and the temporary supporting rod is not removed, or the outer-covered concrete is poured and the temporary supporting rod 26 is removed at the exposed end of the first section 1 of the second section 2, the third section 3 is hoisted, the third section 3 is connected with the end part of the second section 2, and the temporary supporting frame 30 is installed between the top plate of the third section 3 and the second concrete bearing platform 25. The state of which is shown with reference to fig. 11. The temporary support frame 30 is utilized to support the three-section column 3, so that the overall stability of the steel column is ensured, and the steel column is prevented from toppling over in the construction process.
According to the construction method for the steel column, provided by the embodiment, the concrete bearing platform is poured in layers, the anchor bolt support 6 is embedded when the first concrete bearing platform 14 is poured, the steel column is divided into three sections, one section of column 1 is fixed on the anchor bolt support 6, the degree of the one section of column 1 is adjusted by utilizing the screw rod 7 and the nut, and the one section of column 1 is ensured to be accurately adjusted to be in a designed inclined state; pouring a second concrete bearing platform 25 to expose a section of the column 1, and fixing the section of the column 1 by using the second concrete bearing platform 25 to ensure the installation stability of the section of the column 1; thereby ensuring the installation accuracy and the installation stability of the steel column.
Example 2
The present embodiment provides a construction method of a station building, referring to fig. 12, which includes the following steps:
t1, constructing a steel column according to the construction method described in the embodiment 1; after the construction is completed, temporary supporting frames 30 are respectively installed on the inner sides of the steel columns, and the arrangement state of the temporary supporting frames 30 is shown in fig. 13.
T2, hoisting a main truss 31, connecting the main truss 31 with the three sections of columns 3, and supporting the main truss 31 by using a temporary supporting frame 30;
specifically, referring to fig. 14 and 15, the temporary supporting frame 30 includes four upright posts 32, diagonal posts 33, a steel frame platform 34, and a positioning jig 35; four upright rods 32 are respectively fixed on the second concrete bearing platform 25 through third embedded parts 23, and a plurality of diagonal rods 33 are connected between the adjacent upright rods 32; the steel frame platform 34 is arranged at the top of the upright post; the positioning jig 35 comprises a positioning column 36 fixed on the steel frame platform 34, and a jig plate 37 fixed on the positioning column 36 in a vertical arrangement; after the main truss 31 is pressed on the jig frame plate 37, the clamping plates 38 are welded on the jig frame plate 37, so that the clamping plates 38 are positioned on two sides of the main truss 31 to limit the main truss 31.
T3, hoisting the secondary trusses, and fixing the secondary trusses between the adjacent main trusses 31;
t4, hoisting rod pieces between the secondary trusses to finish the installation of the roof;
and T5, unloading the temporary support frame 30 after the concrete reaches the design strength, and transferring the load of the roof to the top of the column.
Specifically, when the temporary support 30 is unloaded, the jig plates 37 are cut at the same height for a plurality of times, the cutting amount is controlled to be 5-10 mm each time, until the roof is not displaced downward after a certain section of the jig plates 37 is cut, and finally the rest temporary support 30 is removed.
According to the construction method of the station building, roof construction can be carried out without waiting for the poured bearing platform to reach the strength, the temporary support frames 30 of the three-section columns 3 are utilized to support the roof in the construction process, the steel columns are not subjected to the load of the roof, after construction is completed and the lower structure reaches the strength, the load is transferred to the steel columns, the steel columns are not influenced by the load of the roof in the construction process, and the construction period is shortened.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (8)
1. The construction method of the steel column is characterized in that the steel column comprises a first section of column, a second section of column and a third section of column which are connected in sequence; the two sections of columns comprise a first section inclined in the same direction as the one section of columns and a second section arranged vertically, and the three sections of columns incline towards the inner side to enable the steel columns to be in an outwards protruding state; the construction method comprises the following steps:
s1, pouring a first concrete bearing platform, and embedding an anchor bolt bracket in the first concrete bearing platform, wherein the anchor bolt bracket comprises a plurality of screw rods extending out of the first concrete bearing platform;
s2, installing a section of column on the anchor bolt support, enabling the screw rod to penetrate through the bottom plate of the section of column, arranging nuts respectively pressed on two sides of the bottom plate on the screw rod, and adjusting the nuts on each screw rod to enable the section of column to incline outwards;
s3, pouring a second concrete bearing platform above the first concrete bearing platform to expose the end part of a section of column outwards;
s4, hoisting the two sections of columns to enable the two sections of columns to be connected with the exposed ends of the two sections of columns; brackets are symmetrically connected to two sides of the two sections of columns, and temporary support rods are arranged between the brackets and the second concrete bearing platform;
s5, after the outer wrapping concrete is not poured and the temporary supporting rod is not removed, or the outer wrapping concrete is poured at the exposed end of one section of column and the first section of the two sections of columns and the temporary supporting rod is removed, the three sections of columns are hoisted, so that the ends of the three sections of columns are connected with the ends of the two sections of columns, and a temporary supporting frame is installed between the top plate of the three sections of columns and the second concrete bearing platform.
2. The method for constructing a steel column according to claim 1, wherein the embedding of the anchor bracket in the first concrete cap comprises:
s11, pouring a cushion cap layer, embedding first embedded parts and second embedded parts in the cushion cap layer, surrounding the first embedded parts into a rectangular shape, and arranging the second embedded parts outside the rectangular shape;
s12, respectively welding angle steel on the first embedded part;
s13, welding the anchor bolt bracket on the angle steel; the anchor bolt support comprises a plurality of screws and a rectangular frame, wherein a connecting plate is welded at the bottom end of each screw, so that the connecting plate is welded with the angle steel, and the rectangular frame is sequentially welded with the plurality of screws;
s14, welding a first diagonal brace on the second embedded part, and welding the first diagonal brace with the rectangular frame to enable the first diagonal brace to obliquely support the anchor bolt bracket;
s15, pouring a first concrete bearing platform, and reserving part of screws to extend out of the first concrete bearing platform.
3. The construction method of a steel column according to claim 1, wherein a third embedded part is embedded in the casting of the first concrete platform so that the third embedded part is positioned at an internal corner of a section of the column; and after adjusting the nuts on each screw rod to enable the section of the column to incline outwards, installing a second diagonal brace between the section of the column and the third embedded part.
4. A method of constructing a steel column according to claim 1, wherein the nuts include a fixing nut above the base plate and an adjusting nut below the base plate; an adjusting seat is arranged between the adjusting nut and the bottom plate; the adjusting seat comprises a seat body and an adjusting block, a unthreaded hole for accommodating the screw rod to pass through is formed in the seat body, an adjusting groove is formed in the surface of the seat body, and the bottom wall of the adjusting groove is arc-shaped; the adjusting block comprises a first plane propped against the bottom plate and a first cambered surface in sliding fit with the bottom wall of the adjusting groove, so that the inclination of the first plane is changed when the adjusting block slides relative to the bottom wall of the adjusting groove; the process of adjusting the height of the nuts on each screw rod to enable one section of column to incline outwards comprises the following steps:
s21, screwing a fixed nut on each screw rod, and reserving an adjusting space for the bottom plate;
s22, adjusting the bottom plate to the height and the inclination of the design state;
s23, screwing each adjusting nut to drive each adjusting seat to move to the first plane of the moving block to prop against the bottom of the bottom plate;
s24, tightening the fixing bolt.
5. The method for constructing a steel column according to claim 1, wherein a first positioning plate is connected to an end of the first column, a second positioning plate is connected to an end of the second column, the first positioning plate is aligned with the second positioning plate, and the first positioning plate and the second positioning plate are respectively bolted to the fixing plate.
6. A method of constructing a station building, comprising:
t1, constructing a steel column according to the construction method of any one of claims 1 to 5;
t2, hoisting a main truss, connecting the main truss with three sections of columns, and supporting the main truss by using a temporary support frame;
t3, hoisting the secondary trusses, and fixing the secondary trusses between adjacent main trusses;
t4, hoisting rod pieces between the secondary trusses to finish the installation of the roof;
and T5, unloading the temporary support frame after the concrete reaches the design strength, and transferring the load of the roof to the top of the column.
7. The method for constructing a station building according to claim 6, wherein the temporary support frame comprises four upright posts, diagonal posts, a steel frame platform and a positioning jig; the four vertical rods are respectively fixed on the second concrete bearing platform through third embedded parts, and a plurality of diagonal rods are connected between the adjacent vertical rods; the steel frame platform is arranged at the top of the upright post; the positioning jig comprises a positioning column fixed on a steel frame platform and a jig plate fixed on the positioning column in a vertical arrangement mode; after the main truss is pressed on the jig frame plate, the clamping plates are welded on the jig frame plate, so that the clamping plates are positioned on two sides of the main truss to limit the main truss.
8. The construction method of a station building according to claim 7, wherein when the temporary support frame is unloaded, the tire frame plates are cut at the same height for a plurality of times, the cutting amount is controlled to be 5-10 mm each time, the roof is not displaced downwards after a certain tire frame plate is cut, and the rest temporary support frame is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310963654.3A CN117027392A (en) | 2023-08-02 | 2023-08-02 | Construction method of steel column and construction method of station building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310963654.3A CN117027392A (en) | 2023-08-02 | 2023-08-02 | Construction method of steel column and construction method of station building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117027392A true CN117027392A (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310963654.3A Pending CN117027392A (en) | 2023-08-02 | 2023-08-02 | Construction method of steel column and construction method of station building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117027392A (en) |
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2023
- 2023-08-02 CN CN202310963654.3A patent/CN117027392A/en active Pending
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