CN110924426A - Bottom-expanding cup-mouth type connecting structure and method for reinforced concrete column and foundation - Google Patents
Bottom-expanding cup-mouth type connecting structure and method for reinforced concrete column and foundation Download PDFInfo
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- CN110924426A CN110924426A CN201911106382.5A CN201911106382A CN110924426A CN 110924426 A CN110924426 A CN 110924426A CN 201911106382 A CN201911106382 A CN 201911106382A CN 110924426 A CN110924426 A CN 110924426A
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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
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
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Abstract
The invention discloses a bottom-expanding cup mouth type connecting structure and a connecting method of a reinforced concrete column and a foundation, wherein the column is inserted into a bottom-expanding cup mouth of the foundation, gap filling concrete is used for filling a gap in the bottom-expanding cup mouth, and column surrounding ribs are used for reinforcement; the top surface of the foundation is downwards provided with a bottom expanding cup mouth; a group of smooth ribs are arranged in the inward concrete of each side cup wall of the bottom expanding cup mouth; a group of hooping ribs are arranged in the concrete around the bottom expanding cup mouth; a group of bottom supporting ribs are arranged in the inward concrete of each side edge of the cup bottom of the bottom expanding cup mouth, and each bottom supporting rib consists of two sections of inclined sections and one section of horizontal section. The connecting method mainly comprises the following steps: manufacturing a column and a column bottom base plate assembly; manufacturing a basic assembly; inserting the column assembly and the surrounding column ribs into the bottom expanding cup mouth and seating the column assembly and the surrounding column ribs on the bottom surface of the bottom expanding cup mouth; and pouring gap filling concrete from the gap opening at the top end of the bottom expanding cup opening inwards, and completing the maintenance, so that the connection between the column and the foundation is completed. The invention provides a connecting structure with more simplified column and foundation and excellent performance.
Description
Technical Field
The invention relates to a bottom-expanding cup-mouth type connecting structure and a bottom-expanding cup-mouth type connecting method for a reinforced concrete column and a foundation, which are assembly type structure technologies in the field of constructional engineering.
Background
In recent years, with the increasing demands of people on living conditions and living environments, the construction industry has been rapidly developing. However, the development of the construction industry causes serious resource consumption and environmental pollution, and people are forced to seek new ways of the construction industry. Currently, building industrialization, which is characterized by prefabricated buildings, is one of the key ways for realizing low-carbon and sustainable development in the field of building industry.
In prefabricated buildings, the connection of structural elements has a crucial influence on the efficiency of the prefabrication and assembly work and the mechanical properties of service. The fabricated frame structure is the most suitable structural form in the fabricated structure at present, and the connection of the frame column and the foundation is the indispensable connection part.
The existing assembled reinforced concrete frame structure is connected with a foundation, and mainly adopts a connection mode that a prefabricated column exposes anchoring reinforcing steel bars at the bottom of the column and then carries out cast-in-place on the prefabricated column and the foundation, so that a long reinforcing steel bar is exposed on a prefabricated column component, a formwork is required to be erected and the foundation is required to be poured during on-site assembly and connection, and the wet workload is large.
In addition, a dry type connecting method of the column and the foundation is characterized in that the prefabricated column is inserted into a cup opening (straight opening) of the prefabricated foundation, and then fine stone concrete is poured into a gap of the cup opening.
Therefore, there is a need for a connection technique that can provide both the easy assembly performance of dry connections and the mechanical performance of solid connections.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the expanded-bottom cup-mouth type connecting structure and the connecting method for the reinforced concrete frame column and the foundation, which can realize convenient dry connection and ensure that a connecting node can provide a consolidation connecting effect and good integrity.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:
a reinforced concrete column and the cup mouth type connection structure of the base of the enlargement, insert the column into the cup mouth of the enlargement of the base of the foundation, and then use the concrete of caulking to pack the space in the cup mouth of the enlargement of the base, use the column bar of enclosing to reinforce at the same time;
the column is a reinforced concrete prefabricated column with a conventional rectangular section as a main body, and comprises column concrete, column longitudinal ribs and column stirrups, a column bottom base plate is arranged on the end face attached to the bottom of the column, rib penetrating circular holes are formed in the column bottom base plate, the lower ends of the column longitudinal ribs extend out of the bottom of the column and penetrate through the rib penetrating circular holes, and the column longitudinal ribs are connected with nuts through thread structures at the bottom ends of the column longitudinal ribs; in the length range of the column inserted into the base expanding cup mouth, the side surface of the column is provided with a cylindrical surface dent;
the foundation is a prefabricated reinforced concrete independent foundation in a conventional form, a bottom expanding cup opening is arranged vertically downwards from the center of the top surface of the foundation, and the bottom expanding cup opening is an opening space with a small upper opening, a large lower bottom, a rectangular horizontal section and four cup walls which are in a regular trapezoid inclined plane;
a group of longitudinal and transverse orthogonal base longitudinal ribs are arranged in a horizontal plane with a distance set upwards from the bottom surface of the base;
a circle of vertical smooth ribs are arranged in the concrete with a distance inward from the cup wall on each side of the bottom expanding cup mouth, surround the bottom expanding cup mouth and are parallel to the cup wall;
a group of horizontal rectangular hoop reinforcement is arranged in the concrete around the bottom-expanding cup mouth from top to bottom, and the length and width directions of two adjacent rectangular hoop reinforcement are orthogonal;
a circle of bottom supporting ribs are arranged in the concrete around the mouth of the bottom expanding cup and around the mouth of the bottom expanding cup, each bottom supporting rib consists of an upper inclined section and a lower horizontal section, a plane formed by the inclined section and the horizontal section is a vertical plane, the horizontal section is positioned below the bottom surface of the mouth of the bottom expanding cup, and all the bottom supporting ribs surround and form a square bowl shape which supports the mouth of the bottom expanding cup and has a large upper opening and a small bottom end;
the column enclosing rib is a reinforcement cage formed by binding a circle of vertical reinforcement and a group of transverse stirrups, and the column enclosing rib is sleeved on the outer side of the column.
Preferably, the vertical depth of the bottom expanding cup mouth is equal to the length of the cross section of the column, and the included angle between each cup wall and the corresponding side face of the column is 10-20 degrees.
Preferably, the distance between the horizontal plane where the longitudinal ribs of the base are located and the bottom surface of the base is 40-70 mm.
Preferably, the distance between the edge rib and the corresponding cup wall is 10-30 mm, the distance between the top end of the edge rib and the top surface of the foundation is 10-30 mm, and the distance between the bottom end of the edge rib and the bottom surface of the foundation is 10-30 mm.
Preferably, the included angle between the inclined section of the bottom supporting rib and the corresponding side face of the column is 40-50 degrees.
Preferably, the distance between the surrounding column rib and the corresponding outer side surface of the column is 10-30 mm, and the vertical height of the surrounding column rib is equal to the vertical depth of the bottom expanding cup mouth minus 10-30 mm.
Preferably, the gap-filling concrete is micro-expansion fine stone concrete.
A connecting method of the expanded-base cup-mouth type connecting structure based on the reinforced concrete column and the foundation comprises the following steps:
(a) manufacturing a column reinforcement cage, and placing the column reinforcement cage into a template; wherein, the column bottom template is used as a column bottom base plate; the inner wall of the template at the position of the column bottom containing the column surface dent is well provided with a bulge for prefabricating the column surface dent;
(b) a nut is fixed on the section of the column longitudinal rib extending out of the column bottom backing plate;
(c) pouring column concrete and finishing maintenance;
(d) manufacturing a base longitudinal bar, a gate bar, a hoop bar and a bottom supporting bar, and binding the base longitudinal bar, the gate bar, the hoop bar and the bottom supporting bar into an integral reinforcement cage;
(e) manufacturing a basic outer contour template and a bottom-expanding cup mouth template, positioning the integral reinforcement cage in place, and pouring and maintaining basic concrete;
(f) transporting the column assembly and the base assembly to an assembly site and installing the base assembly in place;
(g) wrapping the column surrounding ribs from the column bottom to the bottom of the column body in a sleeved mode and temporarily fixing the column surrounding ribs;
(h) inserting the bottom ends of the column assembly and the surrounding column ribs downwards into the bottom-expanding cup mouth and seating on the bottom surface of the bottom-expanding cup mouth, and temporarily supporting and fixing the column after adjusting the position;
(i) and pouring gap filling concrete from the gap opening at the top end of the bottom expanding cup opening inwards, and completing the maintenance, so that the connection between the column and the foundation is completed.
Has the advantages that: the invention provides a bottom-expanding cup-mouth type connecting structure and a connecting method suitable for a reinforced concrete frame column and a foundation, which are more simplified and superior in performance; compared with the prior art, the method has the following advantages:
1. the prefabricated column and the foundation have regular shapes, no holes and no ribs, and the characteristics bring convenience to links such as manufacturing, transportation, hoisting, installation and the like;
2. when the assembly and installation are carried out on site, the column is only required to be inserted into the base cup mouth, and then the gap filling concrete is poured into the residual gap in the cup mouth to complete the assembly, so that the assembly efficiency is high;
3. because the column longitudinal ribs are anchored at the column bottom through the column bottom base plate and the screw cap, after the column is inserted into the base bottom expanding cup mouth, the anchoring length of the column longitudinal ribs at the column root section (the base top surface) can be greatly reduced, so that the depth of the column inserted into the base bottom expanding cup mouth is not determined by the longer seismic anchoring length of the column longitudinal ribs, but only needs to be not less than the side length of the column cross section, thereby reducing the column length, increasing the cup bottom thickness and being beneficial to the resistance of the base to punching damage;
4. different from the traditional straight-mouth cup mouth form, the invention provides the cup mouth form of the bottom-expanding cup mouth, so that the cup wall is retracted from the cup bottom to the cup mouth, the bending tensile stress which is transmitted to the side surface of the column to the joint filling concrete and is parallel to the longitudinal axis direction of the column is favorably transmitted to the cup wall (the shearing force-transmitting capacity of the traditional straight-mouth cup wall and the section of the joint filling concrete is poor), and the good consolidation supporting effect of the foundation to the column can be ensured;
5. the column enclosing rib and the straight rib respectively form good anti-cracking effects on the cup walls of the near-column side and the bottom-expanded cup opening of the joint filling concrete, so that the bending tensile stress of the column side surface parallel to the column longitudinal axis direction is further ensured to be transmitted to the cup walls, and the good consolidation supporting effect of the foundation on the column is further ensured.
Drawings
FIG. 1 is an overall schematic view of a connection structure of a column and a foundation (concrete split);
FIG. 2 is a schematic view of the composition structure of the column;
FIG. 3 is a schematic view of the arrangement structure of longitudinal ribs of the base;
FIG. 4 is a schematic view of a layout structure of a gate rib;
FIG. 5 is a schematic view of the arrangement of the stirrup;
fig. 6 is a schematic view of the arrangement structure of the bottom supporting ribs.
The figure includes: 1-column; 1-1-column concrete; 1-2-cylinder indentations; 1-3-column longitudinal ribs; 1-4-column stirrup; 1-5-column bottom backing plate; 1-6-a rib-penetrating circular hole; 1-7-screw cap; 2-a base; 2-1-basic concrete; 2-2-enlarging the bottom cup mouth; 2-3-base longitudinal ribs; 2-4-smooth tendon; 2-5-stirrup; 2-6-supporting bottom ribs; 3-surrounding column ribs; 4-joint filling concrete.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-6, a bottom-expanded cup-mouth type connecting structure of a reinforced concrete column and a foundation is characterized in that a column longitudinal rib 1-3 extends out of the bottom end of a column 1 and penetrates through a column bottom base plate 1-5 to be anchored by a nut 1-7, then the column 1 is inserted into a bottom-expanded cup mouth 2-2 of a foundation 2, and then gap filling concrete 4 reinforced by a surrounding column rib 3 is used for filling a gap in the cup mouth to realize the connection of the column 1 and the foundation 2; the prefabricated column 1 and the foundation 2 have regular shapes, no holes and no ribs.
The column 1 is a reinforced concrete prefabricated column with a conventional rectangular section as a main body and comprises necessary column concrete 1-1, column longitudinal reinforcements 1-3 and column stirrups 1-4. Meanwhile, within the length range of inserting the column 1 into the bottom-expanding cup mouth 2-2, the outer surface of the column is provided with a cylindrical surface dent 1-2 so as to improve the interface shear resistance between the column and the gap filling concrete 4. The column longitudinal ribs 1-3 extend out of the bottom end face of the column 1 by a certain length which is slightly larger than the thickness of the column bottom backing plate 1-5 plus the thickness of the screw cap 1-7, and external threads are turned within the range of the thickness of the screw cap 1-7 and beyond.
The column bottom backing plate 1-5 is arranged close to the bottom surface of the column 1. The plane shape and the size of the column bottom base plate 1-5 are completely matched with the bottom end of the column 1, and the thickness of the column bottom base plate is determined according to the structure of the base plate; the column longitudinal bar 1-3 is provided with a bar-penetrating circular hole 1-6 at the position of the column bottom base plate 1-5, the column longitudinal bar 1-3 penetrates the column bottom base plate 1-5 and then is fastened by a screw cap 1-7 to be supported on the bottom surface of the column bottom base plate 1-5.
The main body of the foundation 2 is a conventional prefabricated reinforced concrete independent foundation; the bottom-expanding cup opening 2-2 is arranged vertically downwards from the center of the top surface of the foundation 2, the bottom-expanding cup opening 2-2 is an opening space with a small upper opening, a large lower bottom, a rectangular horizontal section and four cup walls in a regular trapezoid inclined plane, the depth of the bottom-expanding cup opening 2-2 is preferably equal to the dimension of the long side of the section of the column 1 (the cross section of the column 1 is square, and if the cross section of the column 1 is rectangular, the dimension of the long side of the cross section is equal to the dimension of the long side of the cross section), the upper opening side length of the bottom-expanding cup opening is preferably equal to the sum of the length of the cross section of the column 1 and 100mm (namely, the distance between the upper opening edge and the corresponding side surface of the column is 50 mm).
In the foundation 2, a group of longitudinal and transverse orthogonal foundation longitudinal ribs 2-3 are arranged in a horizontal plane with a certain distance (preferably 40-70 mm) upward from the bottom surface of the foundation 2, and the diameter and the distance of the longitudinal and transverse orthogonal foundation longitudinal ribs are determined by calculation according to a conventional foundation design method.
The foundation 2 is internally provided with a circle of vertical smooth ribs 2-4 for cracking resistance of the cup wall in concrete with a certain distance (preferably 20mm) inwards from each side of the cup wall of the expanded-base cup opening 2-2, and the concrete surrounds the expanded-base cup opening 2-2 and is parallel to the cup wall; the upper ends of the straight ribs 2-4 are 20mm away from the top surface of the foundation 2, and the lower ends of the straight ribs are 20mm away from the bottom surface of the foundation 2; the dosage of the smooth ribs 2-4 is determined according to the crack resistance calculation of the cup wall.
A group of horizontal rectangular hoop reinforcements 2-5 are arranged in the concrete around the bottom-expanded cup opening 2-2 of the foundation 2 from top to bottom and used for preventing the cup opening from being torn; the hooping reinforcement 2-5 is composed of a plurality of circles of closed hooping reinforcements, each circle of hooping reinforcement is rectangular, the distance between the long edge of each circle of hooping reinforcement and one pair of cup walls close to the expanded-base cup mouth is preferably 30mm, the distance between the short edge of each circle of hooping reinforcement and the other pair of cup walls far away from the expanded-base cup mouth 2-2 is preferably equal to the anchoring length of the reinforcing steel bars; the distance between the hooping reinforcement of the uppermost ring and the hooping reinforcement of the lowermost ring and the top surface of the foundation 2 is preferably 20mm and 200mm respectively; the dosage of the hooping reinforcement 2-5 is determined according to the tearing resistance calculation of the cup opening.
A group of bottom supporting ribs 2-6 are arranged in concrete of which each side edge of the cup bottom of the bottom expanding cup opening 2-2 is inward for a certain distance (preferably 20mm) and are used for preventing the cup bottom from being damaged by punching; each bottom supporting rib 2-6 consists of an upper inclined section and a lower horizontal section, and the plane formed by the inclined section and the horizontal section is a vertical plane; the length of the horizontal section of the bottom supporting rib is preferably equal to the length of the side corresponding to the cross section of the column 1, and the distance between the vertical position and the bottom surface of the foundation 2 is preferably 40-70 mm; the included angle between the inclined section of the bottom supporting rib 2-6 and the corresponding side surface of the column 1 is preferably 45 degrees, and the distance from the top end of the bottom supporting rib to the top surface of the foundation 2 is preferably 20 mm; the usage amount of the bottom supporting ribs 2-6 is determined according to cup bottom punching calculation.
The column surrounding rib 3 is a reinforcement cage formed by binding a circle of vertical reinforcement and a group of stirrups, and the horizontal vertical distance between the inner surface of the reinforcement cage and the outer surface of the column is preferably 20 mm; the height of the vertical steel bar of the surrounding column rib 3 is equal to the depth of the bottom expanding cup mouth 2-2 minus 20 mm; the number of the vertical steel bars of the surrounding column rib 3 is determined according to the interface crack resistance calculation; the number of the stirrups of the column surrounding ribs 3 is determined according to the construction requirements.
The caulking concrete 4 is preferably micro-expansion fine stone concrete.
The vertical axes of the column 1, the foundation 2 and the expanded-bottom cup mouth 2-2 are superposed with each other.
A bottom-expanding cup mouth type connecting method of a reinforced concrete column and a foundation comprises the following steps:
(a) manufacturing a column reinforcement cage, and placing the column reinforcement cage into a template; wherein, the column bottom template is used as a column bottom base plate; the inner wall of the template at the position of the column bottom containing the column surface dent is well provided with a bulge for prefabricating the column surface dent;
(b) a nut is fixed on the section of the column longitudinal rib extending out of the column bottom backing plate;
(c) pouring column concrete and finishing maintenance;
(d) manufacturing a base longitudinal bar, a gate bar, a hoop bar and a bottom supporting bar, and binding the base longitudinal bar, the gate bar, the hoop bar and the bottom supporting bar into an integral reinforcement cage;
(e) manufacturing a basic outer contour template and a bottom-expanding cup mouth template, positioning the integral reinforcement cage in place, and pouring and maintaining basic concrete;
(f) transporting the column assembly and the base assembly to an assembly site and installing the base assembly in place;
(g) wrapping the column surrounding ribs from the column bottom to the bottom of the column body in a sleeved mode and temporarily fixing the column surrounding ribs;
(h) inserting the bottom ends of the column assembly and the surrounding column ribs downwards into the bottom-expanding cup mouth and seating on the bottom surface of the bottom-expanding cup mouth, and temporarily supporting and fixing the column after adjusting the position;
(i) and pouring gap filling concrete from the gap opening at the top end of the bottom expanding cup opening inwards, and completing the maintenance, so that the connection between the column and the foundation is completed.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (8)
1. The utility model provides a reinforced concrete column and basic cup mouth formula connection structure that expands, its characterized in that: inserting the column (1) into the bottom-expanding cup opening (2-2) of the foundation (2), filling gaps in the bottom-expanding cup opening (2-2) with joint filling concrete (4), and reinforcing with column surrounding ribs (3);
the column (1) is a reinforced concrete prefabricated column with a rectangular cross section as a main body and comprises column concrete (1-1), column longitudinal ribs (1-3) and column stirrups (1-4), a column bottom base plate (1-5) is arranged on the bottom end face of the column (1), rib penetrating circular holes (1-6) are formed in the column bottom base plate (1-5), the lower ends of the column longitudinal ribs (1-3) extend out of the bottom end of the column (1) and penetrate through the rib penetrating circular holes (1-6), and the column longitudinal ribs (1-3) are connected with nuts (1-7) through thread structures at the bottom ends of the column longitudinal ribs (1-3); in the length range of the column (1) inserted into the bottom-expanding cup mouth (2-2) of the foundation (2), the side surface of the column (1) is provided with a cylindrical surface dent (1-2);
the base (2) is a prefabricated reinforced concrete independent base, a bottom expanding cup opening (2-2) is arranged vertically downwards from the center of the top surface of the base (2), the bottom expanding cup opening (2-2) is an opening space with a small upper opening, a large lower bottom, a rectangular horizontal section and four cup walls which are in a regular trapezoid inclined plane;
a group of longitudinal and transverse orthogonal base ribs (2-3) are arranged in a horizontal plane with a distance set upwards from the bottom surface of the foundation (2);
a circle of vertical smooth ribs (2-4) are arranged in the concrete with a distance inwards from the cup wall on each side of the bottom expanding cup opening (2-2), and the concrete surrounds the bottom expanding cup opening (2-2) and is parallel to the cup wall;
a group of horizontal rectangular hoop reinforcement (2-5) is arranged in the concrete around the bottom-expanding cup opening (2-2) from top to bottom, and the length and width directions of two rectangular hoop reinforcement (2-5) adjacent to each other are orthogonal;
a circle of bottom supporting ribs (2-6) are arranged in concrete around the bottom expanding cup mouth (2-2), each bottom supporting rib (2-6) consists of an upper inclined section and a lower horizontal section, the plane formed by the inclined section and the horizontal section is a vertical plane, the horizontal section is positioned below the bottom surface of the bottom expanding cup mouth (2-2), and all the bottom supporting ribs (2-6) are enclosed into a square bowl shape which supports the bottom expanding cup mouth (2-2) and has a large upper opening and a small bottom end;
enclose post muscle (3) and be the steel reinforcement cage that the ligature of a round of vertical reinforcing bar and a set of horizontal stirrup formed, enclose the outside at post (1) in post muscle (3) cover.
2. The reinforced concrete column and foundation bellout cup-mouth type connection structure as claimed in claim 1, wherein: the vertical depth of the bottom expanding cup mouth (2-2) is equal to the length of the cross section of the column (1), and the included angle between each cup wall and the corresponding side face of the column (1) is 10-20 degrees.
3. The reinforced concrete column and foundation bellout cup-mouth type connection structure as claimed in claim 1, wherein: the distance between the horizontal plane where the longitudinal ribs (2-3) of the base are located and the bottom surface of the foundation (2) is 40-70 mm.
4. The reinforced concrete column and foundation bellout cup-mouth type connection structure as claimed in claim 1, wherein: the distance between the smooth rib (2-4) and the corresponding cup wall is 10-30 mm, the distance between the top end of the smooth rib (2-4) and the top surface of the foundation (2) is 10-30 mm, and the distance between the bottom end of the smooth rib (2-4) and the bottom surface of the foundation (2) is 10-30 mm.
5. The reinforced concrete column and foundation bellout cup-mouth type connection structure as claimed in claim 1, wherein: the included angle between the inclined section of the bottom supporting rib (2-6) and the corresponding side surface of the column (1) is 40-50 degrees.
6. The reinforced concrete column and foundation bellout cup-mouth type connection structure as claimed in claim 1, wherein: the distance between the surrounding column rib (3) and the corresponding outer side surface of the column (1) is 10-30 mm, and the vertical height of the surrounding column rib (3) is equal to the vertical depth of the bottom expanding cup opening (2-2) minus 10-30 mm.
7. The reinforced concrete column and foundation bellout cup-mouth type connection structure as claimed in claim 1, wherein: the joint filling concrete (4) is micro-expansion fine aggregate concrete.
8. A method for connecting a reinforced concrete column with a pedestal cup-mouth type connecting structure based on any one of claims 1 to 7 is characterized in that: the method comprises the following steps:
(a) manufacturing a column reinforcement cage, and placing the column reinforcement cage into a template; wherein, the column bottom template is used as a column bottom base plate; the inner wall of the template at the position of the column bottom containing the column surface dent is well provided with a bulge for prefabricating the column surface dent;
(b) a nut is fixed on the section of the column longitudinal rib extending out of the column bottom backing plate;
(c) pouring column concrete and finishing maintenance;
(d) manufacturing a base longitudinal bar, a gate bar, a hoop bar and a bottom supporting bar, and binding the base longitudinal bar, the gate bar, the hoop bar and the bottom supporting bar into an integral reinforcement cage;
(e) manufacturing a basic outer contour template and a bottom-expanding cup mouth template, positioning the integral reinforcement cage in place, and pouring and maintaining basic concrete;
(f) transporting the column assembly and the base assembly to an assembly site and installing the base assembly in place;
(g) wrapping the column surrounding ribs from the column bottom to the bottom of the column body in a sleeved mode and temporarily fixing the column surrounding ribs;
(h) inserting the bottom ends of the column assembly and the surrounding column ribs downwards into the bottom-expanding cup mouth and seating on the bottom surface of the bottom-expanding cup mouth, and temporarily supporting and fixing the column after adjusting the position;
(i) and pouring gap filling concrete from the gap opening at the top end of the bottom expanding cup opening inwards, and completing the maintenance, so that the connection between the column and the foundation is completed.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695794A (en) * | 2021-01-07 | 2021-04-23 | 中铁建设集团有限公司 | Precast concrete L shape post rim of a cup basis |
| CN113585871A (en) * | 2021-08-12 | 2021-11-02 | 国网吉林省电力有限公司延边供电公司 | Construction and installation method of enclosing wall |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU903497A1 (en) * | 1980-05-21 | 1982-02-07 | Проектный Институт N1 Госстроя Ссср | Method of constructing a pivotal joint of ferroconcrete structures |
| SU949081A1 (en) * | 1981-01-12 | 1982-08-07 | Опытное Проектно-Конструкторское Бюро С Экспериментальным Производством Всесоюзной Ордена Ленина Академии Сельскохозяйственных Наук Им.В.И.Ленина (Васхнил) | Pillar foundation |
| JP2001226980A (en) * | 2000-02-18 | 2001-08-24 | Nkk Corp | Embedded fixed column base structure |
| CN203947571U (en) * | 2014-07-03 | 2014-11-19 | 河北工程大学 | Controllable rotary Self-resetting elastic hinge structure |
| CN105256821A (en) * | 2015-11-24 | 2016-01-20 | 盐城工学院 | Prefabricated foundation device of T-shaped single-upright advertising board steel pipe column base |
| CN105350562A (en) * | 2015-11-18 | 2016-02-24 | 中国航空规划设计研究总院有限公司 | Inserting type column leg with accurate leveling device and construction method of inserting type column leg |
-
2019
- 2019-11-13 CN CN201911106382.5A patent/CN110924426A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU903497A1 (en) * | 1980-05-21 | 1982-02-07 | Проектный Институт N1 Госстроя Ссср | Method of constructing a pivotal joint of ferroconcrete structures |
| SU949081A1 (en) * | 1981-01-12 | 1982-08-07 | Опытное Проектно-Конструкторское Бюро С Экспериментальным Производством Всесоюзной Ордена Ленина Академии Сельскохозяйственных Наук Им.В.И.Ленина (Васхнил) | Pillar foundation |
| JP2001226980A (en) * | 2000-02-18 | 2001-08-24 | Nkk Corp | Embedded fixed column base structure |
| CN203947571U (en) * | 2014-07-03 | 2014-11-19 | 河北工程大学 | Controllable rotary Self-resetting elastic hinge structure |
| CN105350562A (en) * | 2015-11-18 | 2016-02-24 | 中国航空规划设计研究总院有限公司 | Inserting type column leg with accurate leveling device and construction method of inserting type column leg |
| CN105256821A (en) * | 2015-11-24 | 2016-01-20 | 盐城工学院 | Prefabricated foundation device of T-shaped single-upright advertising board steel pipe column base |
Non-Patent Citations (1)
| Title |
|---|
| 中华人民共和国住房和城乡建设部: "《建筑地基基础设计规范（GB 50007-2011）》", 26 July 2011 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695794A (en) * | 2021-01-07 | 2021-04-23 | 中铁建设集团有限公司 | Precast concrete L shape post rim of a cup basis |
| CN113585871A (en) * | 2021-08-12 | 2021-11-02 | 国网吉林省电力有限公司延边供电公司 | Construction and installation method of enclosing wall |
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