CN108867682B - Bolt reinforcing bar bolt prefabricated assembly concrete column base node - Google Patents
Bolt reinforcing bar bolt prefabricated assembly concrete column base node Download PDFInfo
- Publication number
- CN108867682B CN108867682B CN201710342481.8A CN201710342481A CN108867682B CN 108867682 B CN108867682 B CN 108867682B CN 201710342481 A CN201710342481 A CN 201710342481A CN 108867682 B CN108867682 B CN 108867682B
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- Prior art keywords
- bolt
- steel bar
- nut
- concrete column
- connecting steel
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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
- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
Abstract
The invention discloses a bolt steel bar bolt prefabricated concrete column foot node, which belongs to the field of constructional engineering and comprises the following components: the method comprises the following steps of prefabricating a concrete column, a foundation embedded part, a connecting steel bar, a nut, an end nut and a bolt plate; protruding steps are arranged on four sides of the bottom of the precast concrete column, reinforcing steel bar holes are reserved in the protruding steps, and bolt plate grooves are reserved in the rear parts of the protruding steps; the bolt plate is inserted into the bolt plate groove; the center of the foundation embedded part is provided with a threaded hole, and the foundation embedded part is embedded in the position of the column foot and is opposite to the reserved reinforcing steel bar hole; threaded sections are arranged at two ends of the connecting steel bar and inserted into the reserved holes, and bottom threads are screwed into threaded holes of the basic embedded parts; the nut is screwed on the thread section at the upper end of the connecting steel bar and is tightly attached to the protruding step; and the end nut is screwed on the upper end of the connecting steel bar and is tightly inserted on the plug pin plate. The invention adopts dry connection, only screws and installs the bolt plate during actual installation, is simple, convenient and quick, has high efficiency, can transmit the tension and compression performance of the reinforcing steel bar and has good structural performance.
Description
Technical Field
The invention relates to a bolt steel bar bolt prefabricated concrete column foot node, and belongs to the field of constructional engineering.
Background
The components of the prefabricated concrete structure are produced in a factory and then the prefabricated components are transported to construction for assembly. The construction mode can greatly improve the mechanized construction level, reduce constructors, save construction time, accelerate construction progress and reduce construction cost. The development of the precast concrete structure is an effective way for realizing building industrialization, can effectively save resources, reduce environmental pollution, is beneficial to improving the modernization development level of the national building industry, and has wide development prospect.
The column base of the precast concrete frame structure is the key influencing the structural performance, and the safety and reliability of the structure can be ensured only if the precast column base nodes are reliably connected. Meanwhile, the precast concrete column foot node is also a key factor influencing the rapid and convenient construction of the precast concrete frame structure. At present, conventional prefabricated column base nodes mainly comprise grouting sleeve connection column bases, bolt connection column bases, welding connection column bases and the like. The grouting sleeve is connected with the column base node, and usually, an extended steel bar is reserved on the prefabricated foundation, the column is prefabricated with the sleeve in advance, and then grouting connection is performed, so that the steps are multiple, and the efficiency is low; the bolt connecting column base has the condition of inconvenient operation on site, the conventional bolt can only be pulled usually, and an auxiliary steel component is required to be embedded generally, so that the connecting efficiency and performance are influenced; the welding connection column base is in a narrow and small field range, manual operation is inconvenient, welding quality is difficult to guarantee, and efficiency is low.
Disclosure of Invention
The invention aims to provide a bolt steel bar bolt prefabricated concrete column base node which is connected in a dry mode, is convenient to install quickly, and simultaneously ensures the seismic performance of the column base node by utilizing the pulling and pressing performance of steel bars.
In order to achieve the purpose, the invention adopts the following technical scheme.
Bolt reinforcing bar bolt prefabricated concrete column base node includes: precast concrete post, basic built-in fitting, connecting reinforcement, nut, end nut, bolt board.
Protruding steps are arranged on four sides of the bottom of the precast concrete column, and reinforcing steel bar holes are reserved in the protruding steps and used for penetrating through the connecting reinforcing steel bars.
The center of the foundation embedded part is provided with a threaded hole, and the foundation embedded part is embedded in the position of the column foot, is opposite to the reserved steel bar hole and is used for connecting the connecting steel bar.
And thread sections are arranged at two ends of the connecting steel bar and inserted into the reserved holes, and bottom threads are screwed into the thread holes of the basic embedded parts.
And the nut is screwed on the thread section at the upper end of the connecting steel bar, and the nut is tightly attached to the protruding step after the connecting steel bar is screwed into the foundation embedded part.
And a bolt plate groove is reserved at the rear part of the protruding step, after the connecting steel bar penetrates through the reserved hole, the part of the bolt plate inserted into the bolt plate groove is coated with epoxy glue, and then the bolt plate is inserted into the reserved bolt plate to support the end nut.
The protruding steps and the bolt plate grooves on the adjacent sides of the precast concrete columns have certain height difference, so that the phenomenon that the transmitted internal force is too concentrated and suddenly changed too much at the same section is avoided.
The length of the end nut is three times of that of a common nut with the same specification, an end plate slightly larger than the nut is arranged at one end of the end nut, the end nut is tightly screwed on a thread section at the upper end of the connecting steel bar before the bolt plate is inserted into the bolt groove, and after the bolt plate is inserted into the bolt groove, the end nut is unscrewed towards the direction of the bolt plate and is tightly attached to the bolt plate so as to transmit the pressure of the connecting steel bar.
Advantageous effects
Compared with the prior art, the invention has the following advantages.
(1) The invention adopts 'dry' connection to form the prefabricated concrete column foot joint, and has no wet operation on site, high installation efficiency and high construction speed.
(2) When the prefabricated column is not installed, the connecting steel bars are not installed, and after the prefabricated column is installed in place, the connecting steel bars penetrate through the preformed holes, only the bolts are screwed and the bolt plates are installed, so that the operation is simple, convenient and fast, and the efficiency is high.
(3) The connecting reinforcing steel bar can effectively transmit tension and pressure to form rigid connection, so that the stress performance of the column base connecting node is ensured, meanwhile, the connecting reinforcing steel bar is not bonded in a pore channel, has good deformability and higher anti-seismic energy consumption capacity, and can effectively ensure the structural performance of the column base node under the action of seismic load.
Drawings
FIG. 1 is a schematic diagram of the present invention with the components separated.
Fig. 2 is a schematic assembled column shoe node of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2: the four sides of the bottom of the precast concrete column 1 are provided with protruding steps 2.
The protruding step 2 is reserved with a reinforcing steel bar hole 3, and the rear part of the protruding step 2 is reserved with a bolt plate groove 4.
The protruding steps 2 and the bolt plate grooves 4 on the adjacent sides of the precast concrete column 1 have certain height difference.
The center of the foundation embedded part 5 is provided with a threaded hole which is embedded in the foundation at the position of the column foot and is opposite to the reserved reinforcing steel bar hole 3.
And thread sections are arranged at two ends of the connecting steel bar 6, and the nut 7 and the end nut 8 are screwed at the upper end of the connecting steel bar 6.
After the precast concrete column 1 is hoisted to a preset position, the connecting steel bars 6 are inserted into the reserved steel bar holes 3, and bottom threads are screwed into threaded holes of the foundation embedded parts 5.
After the connecting steel bars 6 penetrate through the preformed holes 3, the part of the bolt plate 9 inserted into the bolt plate groove 4 is coated with epoxy glue and then inserted into the bolt plate 9.
The nut 7 is screwed tightly and clings to the protruding step 2.
The length of the end nut 8 is three times of that of a common nut with the same specification, an end plate slightly larger than the nut 7 is arranged at one end of the end nut, the end nut 8 is tightly screwed on a thread section at the upper end of the connecting steel bar 6 before the bolt plate 9 is inserted into the bolt groove 4, and after the bolt plate 9 is inserted into the bolt groove 4, the end nut 8 is unscrewed towards the bolt plate 9 and is tightly attached to the bolt plate 9.
The embodiments of the present invention are described in detail above with reference to the drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the spirit and scope of the invention.
Claims (4)
1. Bolt reinforcing bar bolt prefabricated concrete column base node includes: the method comprises the following steps of prefabricating a concrete column, a foundation embedded part, a connecting steel bar, a nut, an end nut and a bolt plate;
protruding steps are arranged on four sides of the bottom of the precast concrete column, reinforcing steel bar holes are reserved in the protruding steps, and bolt plate grooves are reserved in the rear parts of the protruding steps;
the bolt plate is inserted into the bolt plate groove;
the center of the foundation embedded part is provided with a threaded hole, and the foundation embedded part is embedded in the position of the column foot and is opposite to the reinforcing steel bar hole;
threaded sections are arranged at two ends of the connecting steel bar and inserted into the steel bar holes, and bottom threads are screwed into threaded holes of the foundation embedded parts;
the nut is screwed on the thread section at the upper end of the connecting steel bar and is tightly attached to the protruding step;
the end nut is screwed on the upper end of the connecting steel bar and clings to the bolt plate;
before the precast concrete column is hoisted, the connecting steel bars and the bolt plates are not installed;
after the precast concrete column is hoisted to a preset position, the connecting steel bars and the plug pin plate are installed, and the end nuts are unscrewed towards the direction of the plug pin plate and are tightly attached to the bottom end of the plug pin plate.
2. The bolted steel reinforced bolt prefabricated concrete column foot node of claim 1, which is characterized in that: the protruding steps and the bolt plate grooves on the adjacent sides of the precast concrete columns have certain height difference.
3. The bolted steel reinforced bolt prefabricated concrete column foot node of claim 1, which is characterized in that: and epoxy glue is coated on the part of the plug pin plate inserted into the plug pin plate groove.
4. The bolted steel reinforced bolt prefabricated concrete column foot node of claim 1, which is characterized in that: the length of the end nut is three times of that of a common nut with the same specification, and an end plate slightly larger than the nut is arranged at one end of the end nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342481.8A CN108867682B (en) | 2017-05-16 | 2017-05-16 | Bolt reinforcing bar bolt prefabricated assembly concrete column base node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710342481.8A CN108867682B (en) | 2017-05-16 | 2017-05-16 | Bolt reinforcing bar bolt prefabricated assembly concrete column base node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108867682A CN108867682A (en) | 2018-11-23 |
| CN108867682B true CN108867682B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710342481.8A Active CN108867682B (en) | 2017-05-16 | 2017-05-16 | Bolt reinforcing bar bolt prefabricated assembly concrete column base node |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925713A (en) * | 2008-01-24 | 2010-12-22 | 新日本制铁株式会社 | Connection metal fitting and building with the same |
| KR101155229B1 (en) * | 2011-11-01 | 2012-06-13 | 류동수 | Concrete Foundation Block Assembly |
| CN206090867U (en) * | 2016-09-19 | 2017-04-12 | 广州容柏生建筑结构设计事务所 | Steel construction wall column base quick connect structure |
-
2017
- 2017-05-16 CN CN201710342481.8A patent/CN108867682B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101925713A (en) * | 2008-01-24 | 2010-12-22 | 新日本制铁株式会社 | Connection metal fitting and building with the same |
| KR101155229B1 (en) * | 2011-11-01 | 2012-06-13 | 류동수 | Concrete Foundation Block Assembly |
| CN206090867U (en) * | 2016-09-19 | 2017-04-12 | 广州容柏生建筑结构设计事务所 | Steel construction wall column base quick connect structure |
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| Publication number | Publication date |
|---|---|
| CN108867682A (en) | 2018-11-23 |
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