CN107476432B - Prefabricated reinforced concrete upright post connection structure - Google Patents
Prefabricated reinforced concrete upright post connection structure Download PDFInfo
- Publication number
- CN107476432B CN107476432B CN201710731060.4A CN201710731060A CN107476432B CN 107476432 B CN107476432 B CN 107476432B CN 201710731060 A CN201710731060 A CN 201710731060A CN 107476432 B CN107476432 B CN 107476432B
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- Prior art keywords
- prefabricated
- upright post
- groove
- section
- column
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 18
- 239000011440 grout Substances 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 7
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention provides a prefabricated reinforced concrete column connecting structure, on the basis of a constant-section prefabricated column, the end part of the column adopts a head expanding treatment and a groove design, and the end part of the prefabricated column extends out of embedded bars so that the embedded bars and the embedded bars of a bearing platform or a prefabricated bent cap are mutually overlapped in the groove; after the prefabricated upright post or the prefabricated capping beam is hoisted and positioned, pouring concrete in the groove to ensure that the prefabricated upright post and the bearing platform or the prefabricated capping beam are connected into an integral structure. Through the head expanding treatment and the groove design of the end parts of the prefabricated upright posts, the stability of the self components of the prefabricated upright posts or the prefabricated bent cap during installation is improved, the problem of setting up the templates of concrete casting at the joints of the prefabricated upright posts and the bearing platform or the prefabricated bent cap is avoided, the component installation and connection speed is accelerated, and the construction safety is improved.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a prefabricated reinforced concrete upright post connecting structure.
Background
The prefabricated reinforced concrete upright post in the early stage mostly adopts a constant section, and when the prefabricated upright post or the prefabricated capping beam is installed and positioned, the size of the section of the prefabricated upright post is generally not large, the self stability is weak, and in order to ensure the stability of the components during the installation of the prefabricated upright post or the prefabricated capping beam, stronger auxiliary fixing measures are needed, and the construction measure cost is higher; and because the joint of the prefabricated upright post and the bearing platform or the prefabricated bent cap has no enclosure structure, when the concrete at the joint is poured, a template for pouring the concrete and a scaffold for installing the template are required to be erected at the joint, so that temporary measures for construction are increased, and the construction speed is reduced.
Therefore, how to provide a construction process for improving the stability of the self and avoiding the addition of a concrete casting template when installing a component and ensuring the reliable connection between the prefabricated upright post and the bearing platform or the prefabricated capping beam is a technical problem which needs to be solved by the person skilled in the art.
Disclosure of Invention
Aiming at the defects that the prior precast reinforced concrete upright post mostly adopts a uniform cross section, the stability of the precast upright post or the precast capping beam is poor when the precast upright post or the precast capping beam is connected with a bearing platform or the precast capping beam, and a template is required to be erected at the joint and the construction speed is reduced, the invention provides a safe, convenient, quick and reliable precast reinforced concrete upright post connecting structure, which is used for improving the stability of the precast member during installation, avoiding the erection of a concrete casting template at the joint and accelerating the construction progress, and simultaneously ensuring the safe and reliable connection of the precast reinforced concrete upright post and the bearing platform or the precast capping beam.
The technical scheme adopted for solving the technical problems is as follows: a prefabricated reinforced concrete stand connection structure, its characterized in that
On the basis of a prefabricated upright post with a uniform cross section, adopting head expanding treatment at the end part of the prefabricated upright post to form an upright post top head expanding section and an upright post bottom head expanding section;
the end face of the bottom of the expanding head section at the bottom of the upright post is provided with a groove, embedded bars extend out of the groove to be mutually overlapped with the embedded bars of the bearing platform, and concrete in the groove is poured to enable the prefabricated upright post and the bearing platform or the prefabricated capping beam to be connected into an integral structure;
the top of the upright post expands the head section or/and the bottom of the prefabricated bent cap is provided with a groove, embedded bars extend out of the groove, so that the embedded bars are mutually overlapped with the embedded bars of the prefabricated bent cap or/and the prefabricated upright post, and concrete in the groove is poured, so that the prefabricated upright post and the prefabricated bent cap are connected into an integral structure.
Further, grouting holes and grout outlet holes are formed in the grooves, and concrete in the grooves is guaranteed to be poured compactly.
Further, the precast cap beam is longitudinally provided with a grouting hole and a grout outlet, the lower ends of the grouting hole and the grout outlet extend to the head expanding section at the top of the upright post or the groove at the bottom of the precast cap beam, and the upper ends extend to the top surface of the precast cap beam.
Further, an inclined surface connecting section is arranged between the head expanding section at the bottom of the upright post and the upright post, a grouting hole and a slurry outlet hole are obliquely formed in the inclined surface connecting section, the lower ends of the grouting hole and the slurry outlet hole extend to the groove of the head expanding section at the bottom of the upright post, and the upper ends extend to the side surface of the inclined surface connecting section.
Further, the concrete is an ultra-high performance cement-based composite material.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the end part of the precast reinforced concrete upright post adopts the head expanding treatment, so that the section size of the upright post is increased, and when the precast upright post or the precast cap beam is installed, only simple temporary auxiliary fixing measures are needed, so that the self stability of the structure when the precast upright post is installed on a bearing platform or the precast cap beam is installed on the precast upright post is improved.
2. According to the invention, the prefabricated reinforced concrete column head expansion section adopts a groove design, embedded bars extend out of the groove, and after the prefabricated column or the prefabricated bent cap is lifted and positioned, ultra-high performance concrete in the groove is poured, so that the prefabricated column and the bearing platform or the prefabricated bent cap are connected into an integral structure, the problem of setting up a template for concrete pouring at the joint of the prefabricated column and the bearing platform or the prefabricated bent cap is avoided, and the connecting speed of the components is accelerated.
Drawings
Fig. 1 is an elevation view of a prefabricated reinforced concrete column connecting structure according to an embodiment of the present invention (first mode: a groove is provided at the bottom of the prefabricated column, a groove is not provided at the top of the prefabricated column, and a groove is provided at the bottom of the prefabricated capping beam).
Fig. 2 is an elevation view of a prefabricated reinforced concrete column connecting structure according to an embodiment of the present invention (in the second mode, grooves are formed in the bottom and the top of the prefabricated column, and no groove is formed in the bottom of the prefabricated capping beam).
In the figure: 11-prefabricating reinforced concrete columns; 11a, expanding a head section at the top of the upright post; 11 b-a head expansion section at the bottom of the upright post; 12-a groove at the bottom of the upright post; 13-grouting/grouting holes of the upright post grooves; 14-a groove at the top of the upright post; 21-a bearing platform; 31-prefabricating a bent cap; 32-a bent cap groove; 33-cover beam grouting/slurry outlet holes.
Detailed Description
The prefabricated reinforced concrete upright post connecting structure provided by the invention is further described in detail below with reference to the attached drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. The technical contents and features of the present invention will be described in detail below with reference to the attached drawings by way of the illustrated embodiments. It should be further noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention. For convenience of description, the "upper" and "lower" described below are consistent with the upper and lower directions of the drawings, but this should not be construed as a limitation of the technical scheme of the present invention.
The following describes in detail the construction of the prefabricated reinforced concrete column connection according to the present invention with reference to fig. 1 and 2.
As shown in fig. 1, the prefabricated reinforced concrete upright 11 is subjected to head expansion treatment at the end, and an upright top head expansion section 11a and an upright bottom head expansion section 11b are respectively arranged. The head expansion section 11a at the top of the upright post is used as a connecting section of the precast reinforced concrete upright post 11 and the precast bent cap 31, a groove is not arranged at the head expansion section 11a at the top of the upright post, a bent cap groove 32 is arranged at the bottom of the precast bent cap 31, a bent cap grouting/slurry outlet 33 for pouring concrete is arranged at the same time, the head expansion section 11a at the top of the upright post and the bent cap groove 32 extend out of embedded bars and are in lap joint with each other, ultra-high performance concrete is poured into the bent cap groove 32 through the bent cap grouting/slurry outlet 33, and the precast upright post 11 and the precast bent cap 31 are connected into a whole; the column bottom head expansion section 11b is used as a connecting section of the precast reinforced concrete column 11 and the bearing platform 21, grooves are formed in the column bottom head expansion section 11b, column groove grouting/grout outlet holes 13 for pouring concrete are formed in the column bottom head expansion section 11b, the column bottom grooves 12 and the bearing platform 21 extend out of embedded bars and are connected in a lap joint mode, ultra-high-energy concrete is poured into the column bottom grooves 12 through the column groove grouting/grout outlet holes 13, and the precast column 11 and the bearing platform are connected into a whole.
As shown in fig. 2, the prefabricated reinforced concrete upright 11 is subjected to head expansion treatment at the end, and an upright top head expansion section 11a and an upright bottom head expansion section 11b are respectively arranged. The column top head expansion section 11a is used as a connecting section of a precast reinforced concrete column 11 and a precast cap beam 31, a column top groove 14 is formed in the column top head expansion section 11a, a cap beam grouting/grout outlet 33 for pouring concrete is formed in the precast cap beam 31, the column top head expansion section 11a and the cap beam groove 32 extend out of embedded bars and are in lap joint with each other, ultra-high performance concrete is poured into the column top groove 14 through the cap beam groove grouting/grout outlet 33, and the precast column 11 and the precast cap beam 31 are connected into a whole; the column bottom head expansion section 11b is used as a connecting section of the precast reinforced concrete column 11 and the bearing platform 21, grooves are formed in the column bottom head expansion section 11b, column groove grouting/grout outlet holes 13 for pouring concrete are formed in the column bottom head expansion section 11b, the column grooves 12 and the bearing platform 21 extend out of embedded bars and are connected in a lap joint mode, ultra-high-energy concrete is poured into the column bottom grooves 12 through the column groove grouting/grout outlet holes 13, and the precast column 11 and the bearing platform 21 are connected into a whole.
The connecting structure is simple in structure and convenient to construct, can ensure the connecting quality of the prefabricated parts, and has good popularization value. In addition, in the invention, when the prefabricated upright post and the bearing platform or the prefabricated capping beam are connected into an integral structure by adopting the ultra-high performance cement-based composite material (APCC), the joint of the reinforcing steel bars is mutually overlapped, and the required strength can be achieved without welding, so that the operation difficulty is reduced.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (3)
1. A prefabricated reinforced concrete upright post connecting structure is characterized in that on the basis of a prefabricated upright post with a uniform cross section, head expanding treatment is adopted at the end part of the prefabricated upright post to form an upright post top head expanding section and an upright post bottom head expanding section;
The end face of the bottom of the head expanding section at the bottom of the upright post is provided with a groove, embedded bars extend out of the groove to be mutually overlapped with the embedded bars of the bearing platform, ultra-high performance concrete is poured into the groove, and the prefabricated upright post and the bearing platform or the prefabricated capping beam are connected into an integral structure;
The top end expansion section of the upright post or/and the bottom of the prefabricated capping beam are provided with grooves, embedded bars extend out of the grooves to be mutually overlapped with the embedded bars of the prefabricated capping beam or/and the prefabricated upright post, and ultra-high performance concrete is poured into the grooves to enable the prefabricated upright post and the prefabricated capping beam to be connected into an integral structure;
An inclined surface connecting section is arranged between the head expanding section at the bottom of the upright post and the upright post, a grouting hole and a slurry outlet hole are obliquely formed in the inclined surface connecting section, the lower ends of the grouting hole and the slurry outlet hole extend to the groove of the head expanding section at the bottom of the upright post, and the upper ends extend to the side surface of the inclined surface connecting section.
2. The prefabricated reinforced concrete column connecting structure according to claim 1, wherein grouting holes and grout outlet holes are formed in the grooves, and concrete in the grooves is guaranteed to be poured tightly.
3. The prefabricated reinforced concrete column connection structure according to claim 1, wherein the prefabricated capping beam is provided with a grouting hole and a grout outlet along the longitudinal direction, the lower ends of the grouting hole and the grout outlet extend to the column top head-expanding section or the groove at the bottom of the prefabricated capping beam, and the upper ends extend to the top surface of the prefabricated capping beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731060.4A CN107476432B (en) | 2017-08-23 | 2017-08-23 | Prefabricated reinforced concrete upright post connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731060.4A CN107476432B (en) | 2017-08-23 | 2017-08-23 | Prefabricated reinforced concrete upright post connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107476432A CN107476432A (en) | 2017-12-15 |
| CN107476432B true CN107476432B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710731060.4A Active CN107476432B (en) | 2017-08-23 | 2017-08-23 | Prefabricated reinforced concrete upright post connection structure |
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| CN (1) | CN107476432B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873128B (en) * | 2020-08-06 | 2021-10-29 | 河北首科铁路器材有限公司 | Combined enhanced concrete corbel column and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08209689A (en) * | 1993-02-26 | 1996-08-13 | Nippon Concrete Ind Co Ltd | Construction work method for pile |
| CN201074328Y (en) * | 2007-07-12 | 2008-06-18 | 王国奋 | Pedestal pile for building foundation construction |
| CN102493439A (en) * | 2011-11-25 | 2012-06-13 | 唐瑞文 | Building fundamental pile constructional element |
| CN104018422A (en) * | 2014-06-18 | 2014-09-03 | 上海市城市建设设计研究总院 | Wet joint structure for prefabrication and splicing of joint part between bridge pier column and cover beam |
| CN104120647A (en) * | 2014-07-04 | 2014-10-29 | 上海应用技术学院 | Segmental assembling concrete frame bridge pier system suitable for rapid construction and construction method |
| CN104612037A (en) * | 2015-01-22 | 2015-05-13 | 宁波大学 | Flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional energy-consuming steel bars |
| CN205223840U (en) * | 2015-12-21 | 2016-05-11 | 上海市城市建设设计研究总院 | Bridge prefabrication pier stand and cushion cap socket joint formula connection structure |
| CN207228324U (en) * | 2017-08-23 | 2018-04-13 | 上海市政工程设计研究总院（集团）有限公司 | A kind of prefabricated reinforced concrete column connecting structure |
-
2017
- 2017-08-23 CN CN201710731060.4A patent/CN107476432B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08209689A (en) * | 1993-02-26 | 1996-08-13 | Nippon Concrete Ind Co Ltd | Construction work method for pile |
| CN201074328Y (en) * | 2007-07-12 | 2008-06-18 | 王国奋 | Pedestal pile for building foundation construction |
| CN102493439A (en) * | 2011-11-25 | 2012-06-13 | 唐瑞文 | Building fundamental pile constructional element |
| CN104018422A (en) * | 2014-06-18 | 2014-09-03 | 上海市城市建设设计研究总院 | Wet joint structure for prefabrication and splicing of joint part between bridge pier column and cover beam |
| CN104120647A (en) * | 2014-07-04 | 2014-10-29 | 上海应用技术学院 | Segmental assembling concrete frame bridge pier system suitable for rapid construction and construction method |
| CN104612037A (en) * | 2015-01-22 | 2015-05-13 | 宁波大学 | Flange-connecting concrete-filled double-wall steel pipe prefabricated assembly piers with additional energy-consuming steel bars |
| CN205223840U (en) * | 2015-12-21 | 2016-05-11 | 上海市城市建设设计研究总院 | Bridge prefabrication pier stand and cushion cap socket joint formula connection structure |
| CN207228324U (en) * | 2017-08-23 | 2018-04-13 | 上海市政工程设计研究总院（集团）有限公司 | A kind of prefabricated reinforced concrete column connecting structure |
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| CN107476432A (en) | 2017-12-15 |
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