CN117286991A - Column foot joint connection structure of prefabricated concrete column and construction method - Google Patents
Column foot joint connection structure of prefabricated concrete column and construction method Download PDFInfo
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- CN117286991A CN117286991A CN202311107148.0A CN202311107148A CN117286991A CN 117286991 A CN117286991 A CN 117286991A CN 202311107148 A CN202311107148 A CN 202311107148A CN 117286991 A CN117286991 A CN 117286991A
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- 239000004567 concrete Substances 0.000 title claims abstract description 55
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 210000003108 foot joint Anatomy 0.000 title claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 120
- 239000010959 steel Substances 0.000 claims abstract description 120
- 239000011178 precast concrete Substances 0.000 claims abstract description 33
- 230000002093 peripheral effect Effects 0.000 claims description 50
- 230000002787 reinforcement Effects 0.000 claims description 35
- 238000003466 welding Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 5
- 210000001226 toe joint Anatomy 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 2
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- 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
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- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention relates to an assembled precast concrete column foot node connection structure, which comprises a precast concrete column, column foot anchor bolts and fasteners, wherein the prefabricated concrete column is fixedly connected with the column foot node connection structure; the precast concrete column comprises a column body and a column bottom steel plate positioned at the bottom end of the column body, wherein the column body is arranged close to the middle of the column bottom steel plate, and anchor bolt holes are reserved in the column bottom steel plate close to the edge; the column foot anchor bolts are pre-embedded in the foundation and extend out from the upper end of the foundation, and the anchor bolt holes are correspondingly arranged with the column foot anchor bolts; the fastener is connected to the upper end of the column foot anchor bolt, is used for locking the steel plate at the bottom end of the column on the foundation, and the application also provides a construction method of the column foot node connection structure, which solves the problems that the column foot connection node of the traditional precast concrete column is complex and the construction quality is difficult to control. The connecting joint has the advantages of simple structure, good shock resistance and stress performance, easy control of construction quality, convenient field construction and installation and general applicability.
Description
Technical Field
The invention relates to the field of building construction, in particular to a column foot node connection structure of an assembled precast concrete column and a construction method.
Background
At present, intelligent building is greatly promoted, on-site manual operation is reduced, and the whole-process intelligent building and the carbon reduction and carbon reduction targets in the building field are realized. The technology of the fabricated building technology is gradually popularized in civil buildings, such as residential buildings, offices, businesses, schools and the like, but the development time of the fabricated building technology is not long after all, so that the problems are also numerous, and the on-site hidden construction quality is difficult to ensure.
In the prior art, the connecting node of the precast concrete column and the foundation is usually connected by adopting a grouting sleeve, is still not approved by most people in the aspects of structural stress and safety, has poorer anti-seismic performance than a cast-in-situ node, and in addition, the construction quality of the connecting structure is difficult to monitor, and the quality of a column foot node is the core of the whole structure safety, so that a plurality of constructors or design units are unwilling to prefabricate the frame column of the main structure. In the aspect of earthquake resistance, the steel structure node is better than a concrete structure in earthquake resistance, construction installation and construction quality are easy to monitor, and the steel structure node is accepted by vast scholars and people, but the cost of the assembled steel structure is higher than that of the concrete structure, and the steel structure node also becomes a key reason for preventing the assembled steel structure from developing, so that if a new node structure system can be provided, the advantages of the steel structure and the concrete structure can be integrated, and the assembled concrete structure can be greatly pushed to be applied to the market.
Disclosure of Invention
Based on the expression, the invention provides a column foot node connection structure of an assembled precast concrete column and a construction method, and aims to solve the technical problems that in the prior art, the structure of a connecting node between an assembled precast concrete column and a foundation is complex and the cost is high.
The technical scheme for solving the technical problems is as follows:
a prefabricated concrete column foot node connection structure comprises a prefabricated concrete column, a column foot anchor bolt and a fastener;
the precast concrete column comprises a column body and a column bottom steel plate positioned at the bottom end of the column body, wherein the column body is arranged close to the middle of the column bottom steel plate, and anchor bolt holes are reserved in the column bottom steel plate close to the edge;
the column foot anchor bolts are pre-embedded in the foundation and extend out from the upper end of the foundation, and the anchor bolt holes are correspondingly arranged with the column foot anchor bolts;
the fastening piece is connected to the upper end of the column foot anchor bolt and used for locking the steel plate at the bottom end of the column on the foundation.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
the utility model provides an assembled precast concrete post column foot node connection structure sets up post bottom steel sheet through precast concrete post lower extreme, adopts the fastener to connect post bottom steel sheet and the pre-buried column foot crab-bolt in inside the basis and constitutes the column foot node, makes the column foot node of concrete post can adopt the column foot node of steel construction box post, and this node simple structure, construction convenience can satisfy structure atress construction requirement, enables on-the-spot construction simple to operate again.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the cylinder includes concrete column, post steel reinforcement cage, peripheral steel sheet and peg, the concrete column set up in the post steel reinforcement cage is inside, four peripheral steel sheet is enclosed along the lower part circumference of concrete column and is established and be located the outside of post steel reinforcement cage, adjacent peripheral steel sheet is along the welding of handing-over position, peg weld in the inboard of peripheral steel sheet is located the concrete column is inside, post bottom steel sheet with the lower extreme welding of peripheral steel sheet.
Further, adjacent peripheral steel plates are connected vertically by single-side groove welding, and the lower ends of the peripheral steel plates are connected with the bottom end steel plates of the column by single-side groove welding.
Further, the outer side of the peripheral steel plate is flush with the outer side of the concrete column, the height of the peripheral steel plate is not less than 1000mm, and the thickness of the peripheral steel plate is not less than 16mm.
Further, at least one row of pegs are arranged on the peripheral steel plate on each side, the diameter of each peg is not smaller than 19mm, the length of each peg is not smaller than 100mm, and the vertical distance is not larger than 100mm.
Further, the column reinforcement cage is formed by the cooperation and the surrounding of column longitudinal reinforcement and column hoop reinforcement, the position that the bottom of column reinforcement cage set up peripheral steel sheet only sets up peripheral stirrup, the column longitudinal reinforcement extends to the bottom of column reinforcement cage and buckle, the bottom is buckled the column longitudinal reinforcement with column bottom portion steel sheet welding.
Further, the column body further comprises stiffening plates, wherein the stiffening plates are arranged on two sides of each anchor bolt hole and are uniformly arranged along the periphery of the concrete column.
Further, at least two layers of fixing frames are arranged in the foundation, and the lower ends of the column foot anchor bolts are pre-buried in the foundation after being fixed with the fixing frames.
Further, the fastener comprises a base plate and double nuts, the base plate is sleeved on the column foot anchor bolt and is arranged at the upper end of the steel plate at the bottom end of the column, and the double nuts are connected to the upper end of the column foot anchor bolt in a stacked mode.
The embodiment of the application also provides a construction method of the prefabricated concrete column foot node connection structure, which comprises the following steps:
manufacturing a precast concrete column, wherein the precast concrete column comprises a column body and a column bottom end steel plate positioned at the bottom end of the column body, and anchor bolt holes are reserved in the column bottom end steel plate;
manufacturing a foundation, embedding a column foot anchor bolt in the foundation, and pouring fine stone concrete at a preset position at the upper end of the foundation, wherein the upper end of the column foot anchor bolt extends out of the foundation;
hoisting a precast concrete column, and installing a steel plate at the bottom end of the column and the column foot anchor bolts exposing the surface of the foundation in a hole-to-hole manner;
and fixing the steel plate at the bottom end of the column on the foundation by adopting a fastener.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a column base node connection structure of an assembled precast concrete column according to an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is a schematic view in section from A-A in FIG. 2;
FIG. 4 is a schematic view in section B-B in FIG. 2;
FIG. 5 is a schematic view in section in the direction C-C of FIG. 2;
fig. 6 is a schematic view of the D-D cross section of fig. 2.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be appreciated that spatially relative terms such as "under … …," "under … …," "below," "under … …," "over … …," "above," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements or features described as "under" or "beneath" other elements would then be oriented "on" the other elements or features. Thus, the exemplary terms "under … …" and "under … …" may include both an upper and a lower orientation. Furthermore, the device may also include an additional orientation (e.g., rotated 90 ° or other orientations) and the spatial descriptors used herein interpreted accordingly.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements. In the following embodiments, "connected" is understood to mean "electrically connected", "communicatively connected", and the like, if the connected circuits, modules, units, and the like have electrical or data transferred therebetween.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
As shown in fig. 1 and 2, the present embodiment provides a prefabricated concrete column toe joint connection structure including a prefabricated concrete column 10, a toe anchor 20, and a fastener 30.
The precast concrete column 10 comprises a column 11 and a column bottom end steel plate 12 positioned at the bottom end of the column 11, wherein the column 11 is arranged near the middle of the column bottom end steel plate 12, and anchor holes 12a are reserved near the edge of the column bottom end steel plate 12.
In this embodiment, the column 11 has a rectangular structure with equal thickness, the section of the steel plate 12 at the bottom of the column is 150mm larger than that of each side of the column 11, the thickness is determined according to the calculation requirement, and the thickness is not smaller than 25mm, and the column foot anchor holes 12a are reserved along the periphery according to the calculation requirement, wherein the diameter of the anchor holes 12a is about 5mm larger than that of the column foot anchors 20.
Referring to fig. 3-6, the toe anchor 20 is embedded in the foundation 100 and extends out from the upper end of the foundation 100, and the anchor hole 12a is disposed corresponding to the toe anchor 20.
The number and diameter of the column foot anchors 20 are determined through calculation, the distance is not more than 200mm, the diameter is not less than 25mm, and the depth of the column foot anchors 20 anchored into the foundation 100 is not less than 40 times of the larger value of the anchor diameter and 1000 mm.
Wherein, be provided with two-layer at least mount 21 in the basis 100, the lower extreme of column foot crab-bolt 20 with the mount 21 fixed back pre-buried in inside the basis 100, column foot crab-bolt 20 is fixed through setting up two-layer mount 21 in basis 100, guarantee column foot crab-bolt 20's stability, it is preferred that whole column foot node connection structure provides good connection basis, mount 21 adopts the angle steel to connect and forms, in this embodiment, mount 21 adopts the angle steel, set up along column foot crab-bolt 20 round, adopt welded connection in the cross position, mount 21 is with the angle steel at column foot crab-bolt 20 position preformed hole, aperture is greater than crab-bolt 8 diameter 2.0mm, guarantee the firm connection of mount 21 and column foot crab-bolt 20.
The fastener 30 is coupled to the upper end of the column foot anchor 20 for locking the column bottom end steel plate 12 to the foundation 100.
Preferably, the fastening member 30 includes a backing plate 31 and a double nut 32, the backing plate 31 is sleeved on the column base anchor bolt 20 and is disposed at the upper end of the column bottom end portion steel plate 12, and the double nut 32 is connected to the upper end of the column base anchor bolt 20 in a stacked manner.
The column 11 of the precast concrete column 10 according to the present application includes a concrete column 111, a column reinforcement cage 112, a peripheral steel plate 113, and pegs 114.
Wherein, concrete column 111 sets up in column reinforcement cage 112 is inside.
The four peripheral steel plates 113 are circumferentially arranged along the lower part of the concrete column 111 and are positioned at the outer side of the column reinforcement cage 112, adjacent peripheral steel plates 113 are welded at the joint position, preferably, the outer sides of the peripheral steel plates 113 are flush with the outer side of the concrete column 111, the height of the peripheral steel plates 113 is not less than 100mm, the thickness of the peripheral steel plates 113 is not less than 16mm, and the adjacent peripheral steel plates 113 are vertically connected by adopting single-side groove welding; the lower ends of the column bottom end steel plate 12 and the peripheral steel plate 113 are connected by single-sided groove welding.
The pegs 114 are welded on the inner side of the peripheral steel plates 113 and are located inside the concrete column 111, preferably, the pegs 114 are located near the middle position of each peripheral steel plate 113, at least one row of the pegs 114 are arranged on each peripheral steel plate 113 on each side, the diameter of each peg 114 is not less than 19mm, the length of each peg 114 is not less than 100mm, the vertical distance between each peg 114 is not more than 100mm, and the peripheral steel plates 113 are effectively connected with the concrete column 111.
The column reinforcement cage 112 is formed by combining and enclosing a column longitudinal reinforcement Z and a column hoop reinforcement G, the position of the bottom of the column reinforcement cage 112, where a peripheral steel plate 1130 is arranged, is only provided with the peripheral hoop reinforcement G, the column longitudinal reinforcement Z extends to the bottom of the column reinforcement cage 112 and is bent, and the column longitudinal reinforcement Z bent at the bottom is welded with the column bottom end steel plate 12.
Preferably, the column 11 further includes stiffening plates 115, the stiffening plates 115 are disposed on two sides of each anchor hole 12a and uniformly disposed along the periphery of the concrete column 111, and the stiffening plates 115 are welded to the bottom end steel plate 12 and the peripheral steel plate 113 by double-sided fillet welds.
It will be appreciated that after the column reinforcement cage 112, perimeter steel plates 113 and pegs 114 and column bottom end steel plates 12 are lashed together at the factory, the concrete is poured to form the concrete column 111 internally, forming the shaped precast concrete column 10.
In order to fully understand the peduncles of the prefabricated concrete column foot node connection structure of the embodiment of the application, the implementation provides a construction method of the column foot node connection structure:
s1, manufacturing a precast concrete column 10, wherein the precast concrete column 10 comprises a column 11 and a column bottom end steel plate 12 positioned at the bottom end of the column 11, and anchor bolt holes 12a are reserved in the column bottom end steel plate 12;
specifically, the manufacturing process of the precast concrete column 10 includes the steps of:
firstly, manufacturing a column reinforcement cage 112, binding column longitudinal ribs Z and column hoop ribs G which are arranged in a range of a peripheral steel plate 113 corresponding to the lower part of a column 11, wherein only the peripheral hoop ribs G are required to be arranged in the range of the peripheral steel plate 113 arranged at the bottom, and the column longitudinal ribs are bent at the bottom;
secondly, installing peripheral steel plates 113, welding studs 114 on the inner side of the peripheral steel plates 113 on the outer side of the column 11 according to design requirements, installing each peripheral steel plate 113 on the outer side of the column reinforcement cage 112, and welding and connecting adjacent peripheral steel plates 113 along the joint position;
step three, installing a column bottom end steel plate 12, pre-opening anchor bolt holes 12a at the position of an anchor bolt designed on the column bottom end steel plate 12, wherein the diameter of the anchor bolt holes 12a is about 5mm larger than that of the anchor bolt, and welding and connecting the column bottom end steel plate 12 with a peripheral steel plate 113;
fourthly, installing stiffening plates 115 and forming the lower structure of the steel structure, welding the stiffening plates 115 on the periphery of the reserved anchor bolt holes 12a of the steel plate 12 at the bottom end of the column, wherein the stiffening plates 115 are connected with the steel plate 12 at the bottom end of the column and the peripheral steel plate 113 by adopting fillet welds, and the column longitudinal ribs Z bent at the bottom of the column are welded with the steel plate 12 at the bottom end of the column;
fifthly, binding column longitudinal ribs Z and column hoop ribs G within the range above the peripheral steel plates 113;
and sixthly, pouring concrete, forming a concrete column 111 in the steel structure, and curing to form a precast concrete column.
S2, manufacturing a foundation 100, embedding a column foot anchor bolt 20 in the foundation 100, and pouring fine stone concrete at a preset position at the upper end of the foundation 100, wherein the upper end of the column foot anchor bolt 20 extends out of the foundation 100;
specifically, the manufacturing process steps of the foundation 100 and the embedded column foot anchor bolt 20 are as follows:
firstly, arranging two layers of fixing frames 21 for fixing the column foot anchor bolts 20 in a foundation 100, wherein the fixing frames 21 are angle steel, are arranged along one circle of the column foot anchor bolts 20, are welded and connected at the crossing positions, and the angle steel of the fixing frames 21 is provided with holes at the positions of the column foot anchor bolts 20, and the aperture is 2.0mm larger than the diameter of the anchor bolts 8;
secondly, connecting the column foot anchor bolts 20 and the fixing frames 21 into a whole, fixing the column foot anchor bolts and the fixing frames in the foundation 100, binding steel bars in the foundation 100, and pouring concrete together;
and thirdly, pouring a layer of non-shrinkage fine stone concrete 101 with the thickness of about 50mm at the position corresponding to the steel plate 12 at the bottom end of the column after the concrete of the foundation 100 reaches the strength required by the design.
And S3, hoisting the precast concrete column 10, and installing the steel plate 12 at the bottom end of the column and the column foot anchor bolts 20 exposing the surface of the foundation in a hole-to-hole manner.
At this time, the fluidized fine stone concrete 101 compacts the contact surface gap between the column bottom end steel plate 12 and the foundation 100 by the gravity of the precast concrete column 10.
S4, fixing the steel plate 12 at the bottom end of the column on the foundation 100 by adopting the fastener 30, specifically, firstly sleeving the base plate 31 on the column foot anchor bolt 20, and then sleeving the double nuts 32 and screwing down, so that the construction process of the column foot node connection structure of the fabricated precast concrete column provided by the embodiment of the application is completed.
The invention integrates the characteristics of low concrete cost and good anti-seismic performance of the steel structure node and is convenient to install, and the connecting node of the precast concrete column 10 and the foundation 100 is converted into the steel structure box-type column base node by arranging the column bottom end steel plate 12 at a certain range at the bottom of the precast concrete column 10, so that the problems that the column base connecting node of the traditional precast concrete column is complex and the construction quality is difficult to control are solved. The connecting joint has the advantages of simple structure, good shock resistance and stress performance, easy control of construction quality, convenient field construction and installation and general applicability.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The prefabricated concrete column foot node connection structure is characterized by comprising a prefabricated concrete column, a column foot anchor bolt and a fastener;
the precast concrete column comprises a column body and a column bottom steel plate positioned at the bottom end of the column body, wherein the column body is arranged close to the middle of the column bottom steel plate, and anchor bolt holes are reserved in the column bottom steel plate close to the edge;
the column foot anchor bolts are pre-embedded in the foundation and extend out from the upper end of the foundation, and the anchor bolt holes are correspondingly arranged with the column foot anchor bolts;
the fastening piece is connected to the upper end of the column foot anchor bolt and used for locking the steel plate at the bottom end of the column on the foundation.
2. The prefabricated concrete column foot joint connection structure according to claim 1, wherein the column comprises a concrete column, a column reinforcement cage, a peripheral steel plate and a stud, the concrete column is arranged inside the column reinforcement cage, four peripheral steel plates are circumferentially arranged along the lower part of the concrete column and are located on the outer side of the column reinforcement cage, adjacent peripheral steel plates are welded along the joint position, the stud is welded on the inner side of the peripheral steel plates and is located inside the concrete column, and the column bottom end steel plates are welded with the lower ends of the peripheral steel plates.
3. The prefabricated concrete column foot joint connection structure according to claim 2, wherein adjacent peripheral steel plates are vertically connected by single-sided groove welding, and lower ends of the peripheral steel plates are connected with the column bottom end steel plates by single-sided groove welding.
4. The prefabricated concrete column toe joint connection structure according to claim 2, wherein the outer side of the peripheral steel plate is flush with the outer side of the concrete column, and the peripheral steel plate has a height of not less than 1000mm and a thickness of not less than 16mm.
5. The prefabricated concrete column toe joint connection structure according to claim 2, wherein at least one row of said pegs are provided on said peripheral steel plate on each side, said pegs having a diameter of not less than 19mm, a length of not less than 100mm, and a vertical pitch of not more than 100mm.
6. The prefabricated concrete column foot joint connection structure according to claim 2, wherein the column reinforcement cage is formed by the cooperation and the surrounding of column longitudinal reinforcement and column hoop reinforcement, the position of the bottom of the column reinforcement cage where the peripheral steel plate is arranged is only provided with the peripheral hoop reinforcement, the column longitudinal reinforcement extends to the bottom of the column reinforcement cage and is bent, and the column longitudinal reinforcement bent at the bottom is welded with the column bottom end steel plate.
7. The prefabricated concrete column toe joint connection structure according to claim 2, wherein the column body further comprises stiffening plates which are disposed on both sides of each of the anchor bolt holes and are disposed uniformly along the periphery of the concrete column.
8. The prefabricated concrete column base node connection structure according to claim 1, wherein at least two layers of fixing frames are arranged in the foundation, and the lower ends of the column base anchor bolts and the fixing frames are pre-buried in the foundation after being fixed.
9. The prefabricated concrete column toe joint connection structure according to claim 1, wherein the fastener includes a backing plate and a double nut, the backing plate is sleeved on the toe anchor bolt and is disposed at the upper end of the column bottom end portion steel plate, and the double nut is connected to the upper end of the toe anchor bolt in a stacked manner.
10. A construction method of an assembled precast concrete column foot node connection structure comprises the following steps:
manufacturing a precast concrete column, wherein the precast concrete column comprises a column body and a column bottom end steel plate positioned at the bottom end of the column body, and anchor bolt holes are reserved in the column bottom end steel plate;
manufacturing a foundation, embedding a column foot anchor bolt in the foundation, and pouring fine stone concrete at a preset position at the upper end of the foundation, wherein the upper end of the column foot anchor bolt extends out of the foundation;
hoisting a precast concrete column, and installing a steel plate at the bottom end of the column and the column foot anchor bolts exposing the surface of the foundation in a hole-to-hole manner;
and fixing the steel plate at the bottom end of the column on the foundation by adopting a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311107148.0A CN117286991A (en) | 2023-08-30 | 2023-08-30 | Column foot joint connection structure of prefabricated concrete column and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311107148.0A CN117286991A (en) | 2023-08-30 | 2023-08-30 | Column foot joint connection structure of prefabricated concrete column and construction method |
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| CN209669911U (en) * | 2018-12-26 | 2019-11-22 | 杭州垠杉建设有限公司 | A kind of plant column foot node |
| CN211597095U (en) * | 2020-01-02 | 2020-09-29 | 郑焕峰 | Steel structure column base installation node with anti-seismic performance |
| CN211773838U (en) * | 2020-01-19 | 2020-10-27 | 山东兴华建设集团有限公司 | Detachable steel pipe concrete column base structure |
| CN216713381U (en) * | 2021-12-07 | 2022-06-10 | 浙江精工钢结构集团有限公司 | Structure node for assisting installation and adjustment of steel structure column base |
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