CN112609842A - Super high-rise steel column base structure and construction method thereof - Google Patents
Super high-rise steel column base structure and construction method thereof Download PDFInfo
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- CN112609842A CN112609842A CN202011412753.5A CN202011412753A CN112609842A CN 112609842 A CN112609842 A CN 112609842A CN 202011412753 A CN202011412753 A CN 202011412753A CN 112609842 A CN112609842 A CN 112609842A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 77
- 239000010959 steel Substances 0.000 title claims abstract description 77
- 238000010276 construction Methods 0.000 title claims abstract description 66
- 230000002787 reinforcement Effects 0.000 claims abstract description 43
- 230000008093 supporting effect Effects 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000009411 base construction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003108 foot joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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
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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
- 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
- E04B1/41—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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/0604—Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
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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
- E04B1/18—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
- E04B2001/2415—Brackets, gussets, joining plates
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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
- E04B1/18—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
- E04B2001/2418—Details of bolting
-
- 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
- E04B2001/2445—Load-supporting elements with reinforcement at the connection point other than the connector
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Abstract
The invention relates to a super high-rise steel column base structure and a construction method thereof, wherein the method comprises the following steps: manufacturing a support frame, and fixedly connecting an annular plate to the support frame, wherein the annular plate is provided with a mounting hole; providing foundation bolts, and enabling the foundation bolts to penetrate through corresponding mounting holes in the annular plate and be fixedly mounted on the annular plate, wherein the tops of the foundation bolts are higher than the top of the supporting frame; binding a reinforcement cage on the periphery of the foundation bolt, wherein the top of the reinforcement cage is flush with the top of the support frame; and providing a column base section, sleeving the column base section on the corresponding foundation bolt, arranging the column base section on the reinforcement cage and the support frame, and fixing the column base section through the foundation bolt so as to form an integral column base framework. The integral column base framework is formed, can be integrally hoisted, and can be poured with concrete together with a floor slab, so that the construction procedures are reduced, the construction quality is improved, the construction flow is optimized, and the construction period is saved.
Description
Technical Field
The invention relates to the field of building construction engineering, in particular to a super high-rise steel column base structure and a construction method thereof.
Background
With the rapid development of economy and the increasingly dense world population, the super high-rise building can undoubtedly provide higher volume ratio, better visual field, and more shocking psychological impact and identity recognition under the condition of the same occupied area. Therefore, super high-rise buildings in various places break the earth and move as bamboo shoots in spring after rain. In the super high-rise building, the outer frame steel column is an important ring in the structure, and the accurate installation of the outer frame steel column ensures that the structure is stressed safely and the curtain wall and the outer installation are carried out smoothly. The first step of installing the outer frame steel column is the construction of a steel column base and foundation bolts.
In the conventional super high-rise steel column base construction, after a foundation anchor rod is positioned and fixed by an anchor rod support in a steel structure specialty, a civil engineering specialty follows up, and reinforcement, acceptance and concrete pouring work are performed. And after the pouring is finished, hoisting the first section of the column, and then performing secondary grouting on the column bottom to compact. The method has multiple working procedures and wide cross working faces of different specialties, and the anchor anchors are easy to move and deviate when concrete is poured, so that the construction error of the steel column is larger.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a super high-rise steel column base structure and a construction method thereof, and solves the problems of multiple working procedures, wide cross working range of different specialties and large construction error of a steel column in the conventional method for constructing the steel column by embedding a foundation anchor bolt and then grouting a compact first-section column for the second time.
The technical scheme for realizing the purpose is as follows:
the invention provides a construction method of a super high-rise steel column base structure, which comprises the following steps:
manufacturing a support frame, and fixedly connecting an annular plate to the support frame, wherein the annular plate is provided with a mounting hole;
providing an anchor bolt, and enabling the anchor bolt to penetrate through a corresponding mounting hole in the annular plate and be fixedly mounted on the annular plate, wherein the top of the anchor bolt is higher than that of the support frame;
binding a reinforcement cage on the periphery of the foundation bolt, wherein the top of the reinforcement cage is flush with the top of the support frame;
and providing a column base section, sleeving the column base section on a corresponding foundation bolt, arranging the column base section on the reinforcing cage and the supporting frame, and fixing the column base section through the foundation bolt so as to form an integral column base framework.
According to the construction method of the steel column base structure, the foundation bolts, the reinforcement cage and the column base sections are assembled into a whole by the support frame, namely, an integral column base framework is formed, high structural stability can be provided for the foundation bolts, the integral column base framework can be integrally hoisted to pour concrete together with a floor slab, and due to the supporting effect of the support frame, the foundation bolts can be prevented from shifting, and the construction error of the steel column is reduced. And the column base joint is fixed on the support frame and is embedded and fixed in the concrete structure together with the foundation bolt, so that secondary grouting compact construction is avoided, and the construction procedures of the column base can be reduced. In addition, the integral column base framework can be integrally assembled on the ground, so that overhead operation is reduced, construction quality is improved, construction safety is guaranteed, construction procedures in column base installation are reduced, operation space in the construction process is increased, cross construction of steel structure major and civil engineering major is greatly avoided, construction flow is optimized, and construction period is saved.
The construction method of the super high-rise steel column base structure is further improved in that the step of binding the reinforcement cage comprises the following steps:
providing a longitudinal rib, bending the longitudinal rib into a U shape, and bending the end part of the U-shaped longitudinal rib outwards to form two bearing ends;
clamping the U-shaped longitudinal rib on the annular plate in a clamping mode in which the opening faces upwards and the U-shaped longitudinal rib is positioned on the side portion of the foundation bolt, and enabling one bearing end to face towards the outer side of the support frame and the other bearing end to face towards the inner side of the support frame;
and providing a stirrup, and fixing the U-shaped longitudinal bar and the corresponding binding of the foundation bolt by utilizing the stirrup along the binding stirrup arranged at intervals in the setting direction of the foundation bolt.
The construction method of the super high-rise steel column base structure is further improved in that a flange plate is arranged at the bottom of the provided column base section, and a connecting hole is formed in the flange plate corresponding to the foundation bolt;
the column foot section is sleeved on the corresponding foundation bolt through the connecting hole in the flange plate, and the flange plate is arranged on the bearing end.
The construction method of the super high-rise steel column base structure is further improved in that the foundation bolts are arranged on the periphery of the support frame at intervals.
The construction method of the super high-rise steel column base structure is further improved in that the construction method further comprises the following steps:
hoisting the column base framework to an installation position, and connecting and fixing the column base framework and the adjacent floor slab steel bars;
and pouring concrete to form an integrated floor slab structure and column base structure.
The invention also provides a super high-rise steel column base structure, which comprises:
the supporting frame is connected with an annular plate, and the annular plate is provided with a mounting hole;
the foundation bolts penetrate through the mounting holes in the annular plate and are fixedly mounted on the annular plate, and the tops of the foundation bolts are higher than the tops of the supporting frames;
a reinforcement cage bound on the periphery of the foundation bolt, wherein the top of the reinforcement cage is flush with the top of the support frame; and
the column base section is sleeved on the corresponding foundation bolt and arranged on the reinforcing cage and the supporting frame, and the foundation bolt is fixedly connected with the column base section.
The invention further improves the column foot structure of the super high-rise steel column, wherein the reinforcement cage comprises longitudinal reinforcements and stirrups, the longitudinal reinforcements are bent into a U shape, and the end parts of the longitudinal reinforcements are bent outwards to form two bearing ends;
the U-shaped longitudinal ribs are sleeved on the annular plate in a mode that the openings face upwards and are positioned on the side portions of the foundation bolts, one bearing end of each U-shaped longitudinal rib faces towards the outer side of the support frame, and the other bearing end of each U-shaped longitudinal rib faces towards the inner side of the support frame;
the stirrups are arranged at intervals along the arrangement direction of the foundation bolts, and corresponding foundation bolts and longitudinal bars are bound and fixed through the stirrups.
The column base structure of the super high-rise steel column is further improved in that a flange plate is arranged at the bottom of the column base section, and a connecting hole is formed in the flange plate corresponding to a foundation bolt;
the column foot section is sleeved on the corresponding foundation bolt through the connecting hole in the flange plate, and the flange plate is arranged on the bearing end.
The super high-rise steel column base structure is further improved in that the foundation bolts are arranged on the periphery of the support frame at intervals.
The super high-rise steel column base structure is further improved in that two annular plates are arranged at intervals up and down.
Drawings
Fig. 1 is a flow chart of a construction method of the super high-rise steel column base structure of the invention.
Fig. 2 is a schematic structural view of a support frame in the super high-rise steel column base structure according to the invention.
Fig. 3 is a schematic structural view illustrating that foundation bolts are installed on a support frame in the super high-rise steel column base structure according to the invention.
FIG. 4 is a schematic structural diagram of a reinforcement cage bound to a foundation bolt in the super high-rise steel column base structure.
Fig. 5 is a schematic structural view of the super high-rise steel column foot structure of the invention.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the invention provides a super high-rise steel column base structure and a construction method thereof, which are used for solving the problems of multiple processes, wide cross working range of different specialties and large construction error of a steel column in the conventional steel column base construction method. According to the steel column base structure and the construction method thereof, the foundation bolts, the reinforcement cage and the column base sections are connected into an integral structure by utilizing the support frame, so that the overhead operation is reduced, the overhead operation is changed into ground operation, the construction quality is improved, the construction safety is ensured, meanwhile, the construction procedures in the installation of the column base are reduced, the operation space in the construction process is increased, the cross construction of a steel structure specialty and a civil engineering specialty is greatly avoided, the construction process is optimized, and the construction period is saved. In addition, the support frame still provides the supporting role for rag bolt when providing the installation basis for rag bolt, and it can ensure rag bolt's structural stability, avoids rag bolt to take place the skew when concrete placement. Ligature steel reinforcement cage on rag bolt can improve the structural strength and the anchor power of rag bolt anchor in the concrete, can ensure the structural stability and the security of steel column. The super high-rise steel column base structure and the construction method thereof of the invention are explained below with reference to the accompanying drawings.
Referring to fig. 5, a schematic structural view of the super high-rise steel column base structure of the present invention is shown. The super high-rise steel column base structure of the present invention will be described with reference to fig. 5.
As shown in fig. 5, the column foot structure of the super high-rise steel column of the present invention includes a support frame 21, anchor bolts 22, a reinforcement cage 23 and column foot joints 24, and is shown in fig. 2, wherein the support frame 21 is connected with an annular plate 211, the annular plate 211 is provided with mounting holes 2111, preferably, the mounting holes 2111 are arranged on the annular plate 211 at intervals, and the mounting holes 2111 are arranged around the periphery of the support frame 21; as shown in FIG. 3, the anchor bolts 22 pass through the mounting holes 2111 of the annular plate 211 and are fixedly mounted on the annular plate 211, and the top of the anchor bolts 22 is at the same height as the top of the support frame 21. The number of the anchor bolts 22 is plural, and the anchor bolts 22 are provided corresponding to the mounting holes 2111, and the mounted anchor bolts 22 are wound around the outer periphery of the support frame 21. Referring to fig. 4, a reinforcement cage 23 is bound around the anchor bolt 22, and the reinforcement cage 23 covers the anchor bolt 22, and the top of the reinforcement cage 23 is flush with the top of the support frame 21. The column base section 24 is sleeved on the corresponding foundation bolt 22, the column base section 24 is arranged on the reinforcement cage 23 and the support frame 21, and the column base section 24 is fixedly connected through the foundation bolt 22.
Through rag bolt 22 with column base section 24 fixed connection on support frame 21, rag bolt 22, steel reinforcement cage 23 and column base section 24 are connected and are formed a whole, have also formed integral column base skeleton, and this integral column base skeleton's structural stability is strong, and whole hoist and mount puts in place the back, is difficult for taking place to shift because of pouring of concrete, can improve the precision of burying underground of column base section, and then has improved the installation accuracy of steel column.
In one embodiment of the present invention, as shown in fig. 2, the supporting frame 21 includes a plurality of vertical rods 212, a plurality of connecting rods 213 and a plurality of supporting rods 214, the plurality of vertical rods 212 are erected at four corners of the square, the supporting rods 214 are connected between adjacent vertical rods 212, and the adjacent two vertical rods 212 are supported and connected through the supporting rods 214, so as to form a frame structure. The frame structure of the bottom and the top is provided with connecting rods 213, the connecting rods 213 are sequentially connected with the top of the corresponding upright 212 and enclose to form a square frame, two supporting rods 214 are crosswise arranged in the square frame, and the two supporting rods 214 are supported at the corners of the square frame. An annular plate 211 is fixedly connected to the bottom frame structure, a middle frame structure is supported on the annular plate 211, another annular plate 211 is fixedly connected to the middle frame structure, and a top frame structure is supported on the another annular plate 211. The frame structures of the bottom, middle and top are aligned.
Preferably, there are two annular plates 211, which are spaced apart from each other.
Preferably, the upright 212, the connecting rod 213 and the brace 214 of the supporting frame 21 are all angle steels, and the rod members are fixedly connected by welding. The annular plate 211 is a steel plate ring.
In one embodiment of the present invention, as shown in FIG. 3, anchor bolts 22 are provided at intervals on the outer periphery of the support frame 21. Rag bolt 22 is connected together fixedly with support frame 21, and support frame 21 provides the support for rag bolt 22, ensures rag bolt 22's structural stability, and support frame 21 still provides the additional strengthening for the column base of steel column, and support frame 21 is the reinforcing bar in the concrete structure, and the intensity that is than the post reinforcing bar will be high a lot more, can guarantee the structural stability of steel column.
Further, a screw adjusting member 221 is screw-coupled to the anchor bolt 22, the screw adjusting member 221 is vertically adjustable along the anchor bolt 22, and after the anchor bolt 22 is fixed to the ring plate 211, the screw adjusting member 221 is screw-coupled such that the screw adjusting member 221 is located at the top of the supporting frame 21. Preferably, the screw-threaded adjusting member 221 is a support nut which is screwed on the anchor bolt 22, a top portion of the support nut is formed with a pallet having a size larger than that of a bottom portion thereof, and the support nut is adjusted such that the height of the pallet is higher than that of the top portion of the support frame 21. Correspondingly, the bottom of the column base section 24 is provided with a connecting hole corresponding to the anchor bolt, the bottom of the column base section 24 is provided with a caulking groove corresponding to the connecting hole and adapted to the support plate on the support nut, when the column base section 24 is sleeved on the anchor bolt 22 through the connecting hole, the support plate of the support nut is placed in the caulking groove to support the column base section 24, and at this time, the bottom of the column base section 24 is placed on the support frame 21.
In one embodiment of the present invention, as shown in fig. 4, the reinforcement cage 23 includes a longitudinal rib 231 and a stirrup 232, the longitudinal rib 231 is bent into a U shape, and the end portions are bent outward to form two supporting ends 2311; the U-shaped longitudinal ribs 231 are sleeved on the annular plate 211 with the openings facing upward and located at the side portions of the anchor bolts 22, and preferably, two longitudinal ribs 231 are disposed at one anchor bolt 22, and the two longitudinal ribs 231 are located at two opposite sides of the anchor bolt 22. One of the bearing ends 2311 of the longitudinal ribs 231 is arranged towards the outer side of the support frame 21, the other bearing end 2311 is arranged towards the inner side of the support frame 21, the bearing ends 2311 of the plurality of longitudinal ribs 231 are arranged at intervals along a circle formed by surrounding the anchor bolts 22, and the bearing ends 2311 are scattered along the circle. The stirrup 232 is arranged along the arrangement direction of the foundation bolt 22 at intervals, and the corresponding foundation bolt 22 and the longitudinal bar 231 are fixedly bound through the stirrup 232.
Preferably, the height of the support ends 2311 corresponds to the height of the top of the support frame 21.
The stirrup 232 is annular, the hoops are arranged on the outer sides of the two longitudinal ribs 231, and the stirrup 232 and the longitudinal ribs 231 are bound and fixed. In order to improve the stability of the reinforcement cage 23, the support ends 2311 of the longitudinal bars 231 facing the inner side of the support frame 21 are fixedly connected with the support frame 21. Preferably by welding.
In an embodiment of the present invention, as shown in fig. 5, a flange plate 2421 is disposed at the bottom of the column base section 24, the flange plate 2421 is provided with a connecting hole corresponding to the anchor bolt 22, the column base section 24 is sleeved on the corresponding anchor bolt 22 through the connecting hole of the flange plate 2421, the flange plate 2421 is disposed on the supporting end 2311, and the flange plate 2421 is also disposed on the supporting frame 21.
Preferably, the column base 24 comprises a connecting column 241 and a base 242 filled and fixed at the bottom of the connecting column 241, the base 242 comprises two flange plates 2421 and a stiffening rib 2422 supported and connected between the two flange plates 2421, the two flange plates 2421 are sleeved on the connecting column 241 and fixedly connected with the connecting column 241, the part of the connecting column 241 above the top flange plate 2421 is used for exposing the concrete structure and is connected with the steel column at the upper part, and the part of the connecting column 241 below the top flange plate 2421 is buried in the concrete structure together with the base 242. The two flange plates 2421 are arranged at intervals up and down, connecting holes corresponding to the anchor bolts 22 are formed in the two flange plates 2421, the anchor bolts 22 penetrate through the corresponding connecting holes in the flange plates 2421 and then are fixedly connected with the flange plates 2421 through fastening nuts, the flange plates 2421 at the bottom are arranged on the reinforcement cage 23, the support frame 21 and the screwing adjusting piece 221, so that the column foot sections 24 are fixedly supported on the support frame 21, the anchor bolts 22 and the reinforcement cage 23, and an integral column foot framework is formed.
In a specific embodiment of the invention, the integral column base framework is modeled and designed through three-dimensional software, after a model of the integral column base framework is designed through the three-dimensional software, the model of the integral column base framework and a model of a floor slab steel bar are matched, the collision problem and the process dimension problem of the two models are detected, and then adjustment is carried out, so that the two models can be assembled well.
Further, the integral column base framework is assembled and fixed on the ground, after the assembly is completed, the column base framework is integrally hoisted in place and connected with the column base framework and the corresponding floor slab reinforcing steel bars, then concrete is integrally poured, the floor slab structure and the column base structure are integrally formed, the concrete of the column base structure is embedded and fixed in the base portion of the column base section, and the connecting columns exposed out of the column base structure are used for being connected with the steel columns on the upper portion.
The super high-rise steel column base structure has the following beneficial effects:
and (3) utilizing a three-dimensional modeling technology to carry out die assembly on the column base framework model and the floor slab steel bar model, adjusting the relative position and the steel bar process style among the structures, making up for the deficiency of the design depth of the original structure, and finally generating a drawing according to a correct space model to guide the field construction.
After the column base framework is integrally installed, the steel column base and the concrete of the floor slab are integrally poured, so that secondary grouting at the position of the steel column base is avoided, the construction process is simplified, and the construction progress is accelerated.
After column foot section and rag bolt, steel reinforcement cage and support frame ground are assembled, the integral erection avoids high altitude and closed area reinforcement difficulty for the construction progress guarantees construction safety.
The support frame that sets up is used for fixed column base festival and rag bolt for the equal accurate positioning in position of rag bolt and column base festival.
The super-high-rise steel column base structure is verified by actual project engineering, the construction error can be controlled within 5mm, and the popularization is strong.
The invention also provides a construction method of the super high-rise steel column base structure, which is explained below.
The invention provides a construction method of a super high-rise steel column base structure, which comprises the following steps:
as shown in fig. 1, step S101 is executed to manufacture a supporting frame, and a ring plate is fixedly connected to the supporting frame, and a mounting hole is formed in the ring plate; then, step S102 is executed;
step S102 is executed, an anchor bolt is provided, the anchor bolt penetrates through a corresponding mounting hole in the annular plate and is fixedly mounted on the annular plate, and the top of the anchor bolt is higher than that of the support frame; then, step S103 is executed;
step S103 is executed, a reinforcement cage is bound on the periphery of the foundation bolt, and the top of the reinforcement cage is flush with the top of the support frame; then, step S104 is executed;
and S1034 is executed, a column base section is provided, the column base section is sleeved on the corresponding foundation bolt, the column base section is arranged on the reinforcement cage and the support frame, and the column base section is fixed through the foundation bolt, so that an integral column base framework is formed.
According to the construction method of the steel column base structure, the foundation bolts, the reinforcement cage and the column base sections are assembled into a whole by the support frame, namely, an integral column base framework is formed, high structural stability can be provided for the foundation bolts, the integral column base framework can be integrally hoisted to pour concrete together with a floor slab, and due to the supporting effect of the support frame, the foundation bolts can be prevented from shifting, and the construction error of the steel column is reduced. And the column base joint is fixed on the support frame and is embedded and fixed in the concrete structure together with the foundation bolt, so that secondary grouting compact construction is avoided, and the construction procedures of the column base can be reduced. In addition, the integral column base framework can be integrally assembled on the ground, so that overhead operation is reduced, construction quality is improved, construction safety is guaranteed, construction procedures in column base installation are reduced, operation space in the construction process is increased, cross construction of steel structure major and civil engineering major is greatly avoided, construction flow is optimized, and construction period is saved.
In one embodiment of the present invention, the step of binding the reinforcement cage comprises:
as shown in fig. 4, providing a longitudinal rib 231, bending the longitudinal rib 231 into a U shape, and bending the end portion of the U-shaped longitudinal rib 231 outwards to form two supporting ends 2311;
the U-shaped longitudinal rib 231 is sleeved on the annular plate 211 in a mode that the opening faces upwards and is positioned at the side part of the anchor bolt 22, so that one bearing end 2311 is arranged towards the outer side of the support frame 21, and the other bearing end 2311 is arranged towards the inner side of the support frame 21;
the stirrup 232 is provided, and the U-shaped longitudinal bar 231 and the corresponding anchor bolt 22 are fixedly bound by the stirrup 232 along the binding stirrup 232 at intervals in the setting direction of the anchor bolt 22.
Further, the supporting end 2311 disposed toward the inner side of the supporting frame 21 is fixedly connected with the supporting frame 21 to ensure that the reinforcement cage 23 is fixed firmly and stably.
Further, as shown in fig. 4 and 5, the supporting end 2311 has a height corresponding to that of the supporting frame 21 for supporting the column foot section 24.
In an embodiment of the present invention, as shown in fig. 5, a flange plate 2421 is disposed at the bottom of the column base section 24, and a connection hole is formed on the flange plate 2421 corresponding to the anchor bolt 22;
the column foot section 24 is sleeved on the corresponding anchor bolt 22 through a connecting hole on the flange plate 2421, and the flange plate 2421 is placed on the supporting end 2311.
In one embodiment of the present invention, as shown in FIG. 3, anchor bolts 22 are provided at intervals on the outer periphery of the support frame 21.
In one embodiment of the present invention, the method further comprises:
hoisting the column base framework to an installation position, and connecting and fixing the column base framework and the adjacent floor slab steel bars;
and pouring concrete to form an integrated floor slab structure and column base structure.
Referring to fig. 5, the anchor bolt 22 is fixedly connected to the support frame 21, a reinforcement cage 23 is bound to the anchor bolt 22, the reinforcement cage 23 is also fixedly connected to the support frame 21, the column base section 24 is then placed on the support frame 21, the column base section 24 is sleeved on the anchor bolt 22 through a connecting hole formed in the column base section 24, and the column base section 24 is fixedly connected to the support frame 21 through the anchor bolt 22, so that an integral column base framework is formed. The column base framework can be integrally hoisted in place, assembly on the ground is achieved, and overhead operation is avoided. And the bottom of the column foot section 24 has a part which can be directly buried in the concrete, so that the secondary grouting construction can be avoided, the construction procedures are reduced, the construction progress is accelerated, and the popularization is strong.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (10)
1. A construction method of a super high-rise steel column base structure is characterized by comprising the following steps:
manufacturing a support frame, and fixedly connecting an annular plate to the support frame, wherein the annular plate is provided with a mounting hole;
providing an anchor bolt, and enabling the anchor bolt to penetrate through a corresponding mounting hole in the annular plate and be fixedly mounted on the annular plate, wherein the top of the anchor bolt is higher than that of the support frame;
binding a reinforcement cage on the periphery of the foundation bolt, wherein the top of the reinforcement cage is flush with the top of the support frame;
and providing a column base section, sleeving the column base section on a corresponding foundation bolt, arranging the column base section on the reinforcing cage and the supporting frame, and fixing the column base section through the foundation bolt so as to form an integral column base framework.
2. The method of constructing a super high-rise steel column footer structure according to claim 1 wherein the step of tying a reinforcement cage comprises:
providing a longitudinal rib, bending the longitudinal rib into a U shape, and bending the end part of the U-shaped longitudinal rib outwards to form two bearing ends;
clamping the U-shaped longitudinal rib on the annular plate in a clamping mode in which the opening faces upwards and the U-shaped longitudinal rib is positioned on the side portion of the foundation bolt, and enabling one bearing end to face towards the outer side of the support frame and the other bearing end to face towards the inner side of the support frame;
and providing a stirrup, and fixing the U-shaped longitudinal bar and the corresponding binding of the foundation bolt by utilizing the stirrup along the binding stirrup arranged at intervals in the setting direction of the foundation bolt.
3. The construction method of the super high-rise steel column base structure according to claim 2, wherein a flange plate is arranged at the bottom of the provided column base section, and a connecting hole is formed in the flange plate corresponding to the foundation bolt;
the column foot section is sleeved on the corresponding foundation bolt through the connecting hole in the flange plate, and the flange plate is arranged on the bearing end.
4. The method of constructing an ultra-high-rise steel column footing structure according to claim 1, wherein the anchor bolts are arranged at intervals on the outer periphery of the supporting frame.
5. The method of constructing an ultra-high-rise steel column footer structure according to claim 1 further comprising:
hoisting the column base framework to an installation position, and connecting and fixing the column base framework and the adjacent floor slab steel bars;
and pouring concrete to form an integrated floor slab structure and column base structure.
6. A super high-rise steel column foot structure, characterized by, includes:
the supporting frame is connected with an annular plate, and the annular plate is provided with a mounting hole;
the foundation bolts penetrate through the mounting holes in the annular plate and are fixedly mounted on the annular plate, and the tops of the foundation bolts are higher than the tops of the supporting frames;
a reinforcement cage bound on the periphery of the foundation bolt, wherein the top of the reinforcement cage is flush with the top of the support frame; and
the column base section is sleeved on the corresponding foundation bolt and arranged on the reinforcing cage and the supporting frame, and the foundation bolt is fixedly connected with the column base section.
7. The super high-rise steel column base structure as claimed in claim 6, wherein the reinforcement cage comprises a longitudinal bar and a hoop bar, the longitudinal bar is bent into a U shape, and the end portions are bent outwards to form two bearing ends;
the U-shaped longitudinal ribs are sleeved on the annular plate in a mode that the openings face upwards and are positioned on the side portions of the foundation bolts, one bearing end of each U-shaped longitudinal rib faces towards the outer side of the support frame, and the other bearing end of each U-shaped longitudinal rib faces towards the inner side of the support frame;
the stirrups are arranged at intervals along the arrangement direction of the foundation bolts, and corresponding foundation bolts and longitudinal bars are bound and fixed through the stirrups.
8. The super high-rise steel column base structure according to claim 7, wherein a flange plate is arranged at the bottom of the column base section, and a connecting hole is formed in the flange plate corresponding to the foundation bolt;
the column foot section is sleeved on the corresponding foundation bolt through the connecting hole in the flange plate, and the flange plate is arranged on the bearing end.
9. The super high-rise steel column foot structure of claim 6, wherein the anchor bolts are arranged at intervals on the periphery of the support frame.
10. The super high-rise steel column footer structure of claim 6 wherein there are two of the annular plates, spaced above one another.
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| CN202011412753.5A CN112609842A (en) | 2020-12-04 | 2020-12-04 | Super high-rise steel column base structure and construction method thereof |
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| CN202011412753.5A CN112609842A (en) | 2020-12-04 | 2020-12-04 | Super high-rise steel column base structure and construction method thereof |
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Application publication date: 20210406 |