CN115288362B - Expansion connecting piece of assembled concrete special-shaped column - Google Patents
Expansion connecting piece of assembled concrete special-shaped column Download PDFInfo
- Publication number
- CN115288362B CN115288362B CN202210084952.0A CN202210084952A CN115288362B CN 115288362 B CN115288362 B CN 115288362B CN 202210084952 A CN202210084952 A CN 202210084952A CN 115288362 B CN115288362 B CN 115288362B
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- fins
- expansion
- sleeve
- outer sleeve
- rod piece
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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
- 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
- E04B1/58—Connections for building structures in general of bar-shaped building elements
Abstract
The invention discloses an expansion connecting piece of an assembled concrete special-shaped column, which comprises an expansion bolt and an expansion sleeve, wherein the expansion bolt comprises a rod piece, a plurality of first lugs and a plurality of fins, one end of the rod piece is an embedded end, the other end of the rod piece is an expansion end, all the first lugs are fixed on the embedded end at intervals, all the fins are rotatably arranged on the expansion end through a rotating shaft, the fins are at least arranged in a row in the length direction of the expansion end, the expansion end is provided with a first groove, the fins are rotatably arranged in the first groove, and a torsion spring for connecting the fins with the first groove is sleeved on the rotating shaft. When the invention is used, all expansion connecting pieces of the main column and the side column can be connected only by lifting the side column and then slowly putting down the side column, the construction speed is high, and the connection between the main column and the side column is reliable.
Description
Technical Field
The invention relates to an expansion connecting piece, in particular to an expansion connecting piece of an assembled concrete special-shaped column.
Background
The traditional concrete column is generally constructed on site, and the reinforcement cage is required to be bound on site, the concrete is purchased and transported for pouring, so that the construction time is long, and the concrete column cannot be reused after being dismantled, so that resource waste and environmental pollution are caused. The assembled building is widely accepted by the nation and the society, and the advantages of high construction speed, repeated use of the assembled building blocks, clean and sanitary construction process and the like are that the traditional construction process cannot be compared, but most of the assembled building blocks cannot achieve completely anhydrous operation, and the connection reliability between the assembled building blocks is always the most concerned problem. Along with the increase of social demands and construction level, the number of times that special-shaped columns in a building are adopted gradually increases, but the construction process of the special-shaped columns is more complicated, the requirements on reinforcement bar binding and template manufacturing are higher, the construction speed is influenced, and if the special-shaped columns are assembled by converting cast-in-situ construction into assembly, the problems can be effectively solved, and the requirements of the building on the special-shaped columns are met.
Disclosure of Invention
The invention aims to solve the technical problems that: an expansion joint for an assembled concrete profiled column is provided.
In order to solve the technical problems, the expansion connecting piece comprises an expansion bolt and an expansion sleeve, wherein the expansion bolt comprises a rod piece, a plurality of first lugs and a plurality of fins, one end of the rod piece is an embedded end, the other end of the rod piece is an expansion end, all the first lugs are fixed on the embedded end at intervals, all the fins are rotatably arranged on the expansion end through a rotating shaft, the fins are at least arranged in a row in the length direction of the expansion end, a first groove is arranged on the expansion end, the fins are rotatably arranged in the first groove, a torsion spring for connecting the fins with the first groove is sleeved on the rotating shaft, the expansion sleeve comprises an outer sleeve, an inner sleeve and a piston which are arranged in the outer sleeve, the embedded end of the rod piece is embedded in a side column, the outer sleeve of the expansion sleeve is embedded in a main column, the lower end of the outer sleeve is closed and the upper end of the outer sleeve is open, oil chambers filled with hydraulic oil are arranged in the side walls and the lower end wall of the outer sleeve, the inner side of the lower end wall of the outer sleeve is provided with a first oil port communicated with the oil chamber, the piston is arranged in the first oil port, the upper part of the side wall of the outer sleeve is provided with a second oil port communicated with the oil chamber, both ends of the inner sleeve are open, the inner side wall of the inner sleeve is provided with second grooves which are in one-to-one correspondence with the fins, the distance from the mouth of each second groove to the axis of the inner sleeve is a, the distance from the front end of each fin to the axis of the rod when the fin is not subjected to external force is b, the distance from the rear end of the fin to the axis of the rod when the fin is not subjected to external force is c, b < a < c, when the rear end of the fin is turned forwards to the maximum angle, the distance from the rear end of the fin to the axis of the rod is c1, c1> c, the upper end of the inner sleeve is slidably inserted in the second oil port, when the expansion end of the rod is inserted into the inner sleeve to contact with the piston and does not exert pressure on the piston, the rear end of each fin is positioned at the mouth of the corresponding second groove, when the expansion end of the rod piece pushes the piston to move to the front side wall of the overhead oil chamber in the first oil port, hydraulic oil in the oil chamber pushes the inner sleeve to move forward and downward for a certain distance, the rear end of each fin is pushed by the rear side wall of the second groove to turn over to enter the corresponding second groove, and the rear end of each fin in the main column is in a state of entering the corresponding second groove.
Preferably, the fins are arranged in two rows along the length direction of the expansion end, and the two rows of fins are symmetrical relative to the axis of the rod piece.
Preferably, a plurality of second lugs are fixed on the outer wall of the outer sleeve.
The beneficial effects of the invention are as follows: according to the invention, the main column and the side columns of the fabricated concrete special-shaped column are connected through the expansion connecting pieces, so that the main column and the side columns can be prefabricated in a factory, the main column and the side columns are connected through the expansion connecting pieces which are arranged up and down, the expansion connecting pieces are obliquely arranged according to the same inclination angle, and when the fabricated concrete special-shaped column is installed, all the expansion connecting pieces of the main column and the side columns can be connected only by lifting the side columns and slowly putting down the side columns, so that the construction speed is high, and the main column and the side columns are reliably connected. Because the slope setting of expansion joint spare for side post and principal post can zonulae occludens, and the gap is less, inserts the principal post because of the expansion joint spare slant below on the side post again, if certain side post produces inhomogeneous subsidence, then other concrete columns can produce the resistance to the subsidence of this side post, if the principal post produces inhomogeneous subsidence, then other side posts can produce the resistance to the subsidence of principal post, perhaps subside together with the principal post, has strengthened the wholeness of assembled concrete dysmorphism post, avoids inhomogeneous subsidence, and reduces the construction degree of difficulty.
Drawings
FIG. 1 is a schematic top view of a shaped column of the present invention;
FIG. 2 is a schematic front view of a profiled column of the present invention;
FIG. 3 is a schematic illustration of the expansion plug of the expansion joint of the present invention prior to entry into the expansion shell;
FIG. 4 is a schematic illustration of the expansion plug of the expansion joint of the present invention as it enters the expansion shell just contacting the piston;
FIG. 5 is a schematic view of the expansion plug of the expansion joint of the present invention as it enters the expansion shell to push the piston a distance;
FIG. 6 is a schematic illustration of the expansion plug of the expansion joint of the present invention as it enters the expansion shell to push the piston to its extreme position;
FIG. 7 is a schematic enlarged view of the structure of the expansion shell of the present invention;
FIG. 8 is a schematic enlarged view of a partial structure of an expansion plug according to the present invention;
FIG. 9 is a schematic enlarged view of the partial structure A of FIG. 4;
FIG. 10 is a schematic enlarged view of the partial structure B of FIG. 5;
FIG. 11 is a schematic enlarged view of the partial structure of C of FIG. 6;
in the figure: 1. the side column, 2, L-shaped steel plates, 3, a main column, 4, an expansion connecting piece, 5, an embedded end, 6, a first lug, 7, an expansion end, 8, a fin, 9, an outer sleeve, 10, a second lug, 11, a return spring, 12, a piston, 13, an oil chamber, 14, an inner sleeve, 15, a second groove, 16, a torsion spring, 17 and a first groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The fabricated concrete special-shaped column as shown in fig. 1 and 2 comprises a main column 3 and four side columns 1 connected with the main column 3, wherein the main column 3 and the side columns 1 are connected through a plurality of expansion connecting pieces 4 which are arranged up and down, the expansion connecting pieces 4 are obliquely arranged at an inclination angle of 45 degrees, one high end of each expansion connecting piece 4 is connected in the side column 1, and one low end of each expansion connecting piece 4 is connected in the main column 3. The center-to-center spacing of adjacent expansion joints 4 on the surface of main column 3 is 0.7m. The included angle between the main column 3 and the side column 1 is connected through an L-shaped steel plate 2.
As shown in fig. 3 to 11, the expansion joint 4 comprises an expansion bolt and an expansion sleeve, the expansion bolt comprises a rod piece, a plurality of first lugs 6 and a plurality of fins, one end of the rod piece is an embedded end 5, the other end is an expansion end 7, all the first lugs 6 are fixed on the embedded end 5 at intervals, all the fins 8 are rotatably arranged on the expansion end 7 through a rotating shaft, the fins 8 are at least arranged in two rows in the length direction of the expansion end 7, a first groove 17 is arranged on the expansion end 7, the fins 8 are rotatably arranged in the first groove 17, a torsion spring 16 for connecting the fins 8 with the first groove 17 is sleeved on the rotating shaft, the expansion sleeve comprises an outer sleeve 9, an inner sleeve 14 and a piston 12 which are arranged in the outer sleeve 9, a plurality of second lugs 10 are fixed on the outer wall of the outer sleeve 9, the embedded end 5 of the rod piece is embedded in the side column 1, the outer sleeve 9 of the expansion sleeve is embedded in the main column 3, the lower end of the outer sleeve 9 is closed, the upper end of the outer sleeve is opened, the side wall and the lower end wall of the outer sleeve 9 are provided with an oil chamber 13 filled with hydraulic oil, the inner side of the lower end wall of the outer sleeve 9 is provided with a first oil port communicated with the oil chamber 13, a piston 12 is arranged in the first oil port, a return spring 11 is arranged between the piston 12 and the outer sleeve 9, when the piston is not subjected to external force, a certain distance is reserved between the piston and the front side wall of the oil chamber 13, the upper part of the side wall of the outer sleeve 9 is provided with a second oil port communicated with the oil chamber 13, the two ends of the inner sleeve 14 are opened, the inner side wall of the inner sleeve 14 is provided with second grooves 15 which are in one-to-one correspondence with the fins 8, the distance from the mouth of the second grooves 15 to the axis of the inner sleeve 14 is a, the distance from the front end of the fins 8 to the axis of the rod is b when the fins 8 are not subjected to external force, the distance from the rear end of the fins 8 to the axis of the rod is c, b < a < c, when the rear end of the fins 8 are turned forwards to the maximum angle, the distance from the rear ends of the fins 8 to the rod axis is c1, c1> c, the upper ends of the inner sleeves 14 are slidably inserted into the second oil ports, when the expansion end of the rod is inserted into the inner sleeve 14 to be in contact with the piston 12 and no pressure is applied to the piston 12, the rear ends of each fin 8 are located at the mouths of the corresponding second grooves 15 (as shown in fig. 9), when the expansion end 7 of the rod pushes the piston 12 to move in the first oil port to the front side wall of the upper oil chamber 13, hydraulic oil in the oil chamber 13 pushes the inner sleeve 14 to move forward and downward for a certain distance, the rear ends of each fin 8 are turned into the corresponding second grooves 15 under the pushing of the rear side wall of the second grooves 15, and the rear ends of each fin 8 in the main column 3 are in a state of being entered into the corresponding second grooves 15 (as shown in fig. 11).
The construction method of the fabricated concrete special-shaped column in the specific embodiment comprises the following steps:
(1) Prefabricating a main column 3 and a side column 1, embedding the embedded end of an expansion bolt in the side column, and embedding an expansion sleeve in the main column;
(2) The main column 3 is firstly installed, then the side column 1 is hoisted to enable the expansion end 7 of the expansion bolt to be inserted into a corresponding expansion sleeve on the main column 3, when the expansion end 7 pushes the piston 12 to move to the front side wall of the upper oil chamber 13 in the first oil port, hydraulic oil in the oil chamber pushes the inner sleeve to move forward and downward for a certain distance, the rear end of each fin 8 is pushed by the rear side wall of the second groove 15 to be overturned into a corresponding second groove 15, and the expansion end 7 is reliably connected in the expansion sleeve.
(3) An L-shaped steel plate 2 is connected at the included angle between the main column 3 and the side column 1.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. An expansion connector of an assembled concrete special-shaped column, which is characterized in that: the expansion bolt comprises a rod piece, a plurality of first lugs and a plurality of fins, wherein one end of the rod piece is a pre-buried end, the other end of the rod piece is an expansion end, all the first lugs are fixed on the pre-buried end at intervals, all the fins are rotationally arranged on the expansion end through a rotating shaft, the fins are at least arranged in a row in the length direction of the expansion end, a first groove is formed in the expansion end, the fins are rotationally arranged in the first groove, and a torsion spring for connecting the fins with the first groove is sleeved on the rotating shaft; the expansion sleeve comprises an outer sleeve, an inner sleeve and a piston, wherein the inner sleeve and the piston are arranged in the outer sleeve, the embedded end of a rod piece is embedded in a side column, the outer sleeve of the expansion sleeve is embedded in a main column, the lower end of the outer sleeve is closed, the upper end of the outer sleeve is open, the side wall and the lower end wall of the outer sleeve are provided with oil chambers filled with hydraulic oil, the inner side of the lower end wall of the outer sleeve is provided with a first oil port communicated with the oil chambers, the upper part of the side wall of the outer sleeve is provided with a second oil port communicated with the oil chambers, the two ends of the inner sleeve are open, the inner side wall of the inner sleeve is provided with second grooves in one-to-one correspondence with fins, the distance from the opening of the second grooves to the axis of the inner sleeve is a, the distance from the front end of the fins to the axis of the rod piece is b when the fins are not subjected to external force, the distance from the rear end of the fins to the axis of the rod piece is c, b < a < c, when the rear ends of the fins are turned forward to the maximum angle, the upper ends of the fins are slidably inserted in the second oil ports, the expansion ends of the rod pieces are inserted into the second oil ports, the inner sleeve are contacted with the piston and do not press the piston, the second grooves are in the opposite to the first grooves, the rear ends of the fins are pushed by the corresponding fins to the front ends of the front side walls of the inner sleeve, and the front ends of the fins are pushed by the corresponding fins to the front side grooves are pushed by the front side grooves, and the front ends of the front side edges of the front side are pushed by the front side and the front side is pushed by the front side and push the front ends are and push the front.
2. The expansion joint of fabricated concrete profiled pole according to claim 1, characterized in that: the fins are arranged in two rows in the length direction of the expansion end, and the two rows of fins are symmetrical relative to the axis of the rod piece.
3. The expansion joint of fabricated concrete profiled pole according to claim 1, characterized in that: a plurality of second lugs are fixed on the outer wall of the outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084952.0A CN115288362B (en) | 2020-12-04 | 2020-12-04 | Expansion connecting piece of assembled concrete special-shaped column |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011398447.0A CN112482663B (en) | 2020-12-04 | 2020-12-04 | Assembled concrete special-shaped column and construction method |
| CN202210084952.0A CN115288362B (en) | 2020-12-04 | 2020-12-04 | Expansion connecting piece of assembled concrete special-shaped column |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011398447.0A Division CN112482663B (en) | 2020-12-04 | 2020-12-04 | Assembled concrete special-shaped column and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115288362A CN115288362A (en) | 2022-11-04 |
| CN115288362B true CN115288362B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011398447.0A Active CN112482663B (en) | 2020-12-04 | 2020-12-04 | Assembled concrete special-shaped column and construction method |
| CN202210084952.0A Active CN115288362B (en) | 2020-12-04 | 2020-12-04 | Expansion connecting piece of assembled concrete special-shaped column |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011398447.0A Active CN112482663B (en) | 2020-12-04 | 2020-12-04 | Assembled concrete special-shaped column and construction method |
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| CN (2) | CN112482663B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993145Y (en) * | 2006-12-15 | 2007-12-19 | 陈姚建平 | Fast expansion screw |
| CN104727439A (en) * | 2015-03-09 | 2015-06-24 | 沈阳建筑大学 | Assembly concrete new type pillar and beam structure and assembly connecting method |
| CN204755518U (en) * | 2015-06-19 | 2015-11-11 | 刘冉冉 | Inflation theftproof bolt assembly |
| JP2017502225A (en) * | 2013-12-19 | 2017-01-19 | ヒルティ アクチエンゲゼルシャフト | Extended anchor with anti-rotation |
| CN107842347A (en) * | 2017-12-05 | 2018-03-27 | 中国石油天然气股份有限公司 | For testing the automatic setting mechanism of envelope measurement and adjustment instrument with one heart and testing envelope measurement and adjustment instrument with one heart |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE696108C (en) * | 1937-08-18 | 1940-09-11 | Paul Kanschat | Detachable connection between two components |
| US6345946B1 (en) * | 2000-08-03 | 2002-02-12 | Radio Systems Corporation | Fastener |
| WO2005108801A1 (en) * | 2004-05-06 | 2005-11-17 | Sang-Hun Yu | Binding tool |
| CN201011049Y (en) * | 2006-12-07 | 2008-01-23 | 沈阳建筑大学 | Special shaped steel pipe concrete core pole |
| CN101565968A (en) * | 2009-05-27 | 2009-10-28 | 天津大学 | Direct assembly concrete-filled steel tube combined special-shaped column and production method thereof |
-
2020
- 2020-12-04 CN CN202011398447.0A patent/CN112482663B/en active Active
- 2020-12-04 CN CN202210084952.0A patent/CN115288362B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200993145Y (en) * | 2006-12-15 | 2007-12-19 | 陈姚建平 | Fast expansion screw |
| JP2017502225A (en) * | 2013-12-19 | 2017-01-19 | ヒルティ アクチエンゲゼルシャフト | Extended anchor with anti-rotation |
| CN104727439A (en) * | 2015-03-09 | 2015-06-24 | 沈阳建筑大学 | Assembly concrete new type pillar and beam structure and assembly connecting method |
| CN204755518U (en) * | 2015-06-19 | 2015-11-11 | 刘冉冉 | Inflation theftproof bolt assembly |
| CN107842347A (en) * | 2017-12-05 | 2018-03-27 | 中国石油天然气股份有限公司 | For testing the automatic setting mechanism of envelope measurement and adjustment instrument with one heart and testing envelope measurement and adjustment instrument with one heart |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112482663A (en) | 2021-03-12 |
| CN115288362A (en) | 2022-11-04 |
| CN112482663B (en) | 2022-03-15 |
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