CN110241916B - Reinforced concrete upper and lower column connecting system of prefabricated building - Google Patents
Reinforced concrete upper and lower column connecting system of prefabricated building Download PDFInfo
- Publication number
- CN110241916B CN110241916B CN201910569454.3A CN201910569454A CN110241916B CN 110241916 B CN110241916 B CN 110241916B CN 201910569454 A CN201910569454 A CN 201910569454A CN 110241916 B CN110241916 B CN 110241916B
- Authority
- CN
- China
- Prior art keywords
- column
- wedge pin
- pin hole
- connecting piece
- hopper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
Abstract
The invention discloses a reinforced concrete upper and lower column connecting system of an assembly type building, which is mainly used for the assembly type building, has high construction speed and good bending resistance and shearing resistance; the device mainly comprises an upper column, a lower connecting piece and an upper connecting piece; the construction process comprises the following steps: firstly hoisting an upper column, inserting a lower connecting bucket of the upper column into an upper connecting bucket of the lower column, then temporarily fixing a lower connecting piece 3 and an upper connecting piece 4, if a wedge pin hole A8 and a wedge pin hole B10 are dislocated in the process that a first wedge pin 9 is driven into a wedge pin hole A8 of the lower column 2 and a wedge pin hole B10 of the upper column 1, a head section 16 of the wedge pin 9 firstly passes through the wedge pin hole A8 and the wedge pin hole B10 and is penetrated into concrete of a lower connecting bucket 7 of the lower connecting piece 3, the wedge pin 9 forcibly adjusts the relative position of the lower connecting piece 3 and the upper connecting piece 4, the wedge pin hole A8 and the wedge pin hole B10 are forced to be aligned, then the wedge pins 9 are driven one by one, and the connection work of the upper column 1 and the lower column 2 is finished.
Description
Technical Field
The invention is mainly used for reinforced concrete fabricated buildings.
Background
The connection between the upper column and the lower column in the currently applied or used reinforced concrete fabricated building is not firm, the connection quality problem is easy to occur, and the bending resistance and the shearing resistance are poor.
Disclosure of Invention
The invention solves the problems, and has the advantages of high construction speed, excellent connection performance, and good bending resistance and shearing resistance.
The device consists of an upper column (1), a lower column (2), a lower connecting piece (3) and an upper connecting piece (4); the lower connecting piece (3) is embedded at the lower end of the upper column (1), the central axis of the upper column (1) is superposed with the central axis of the lower connecting piece (3), the upper connecting piece (4) is embedded at the upper end of the upper column (1), and the central axis of the upper column (1) is superposed with the central axis of the upper connecting piece (4); the lower connecting piece (3) consists of a connecting plate A (13) and a lower connecting hopper (7), a plurality of bolt holes (5) are uniformly arranged on the connecting plate A (13), the upper end of the lower connecting hopper (7) is welded with the lower end of the connecting plate A (13), the central line of the lower connecting hopper (7) is superposed with the central line of the connecting plate A (13), the lower connecting hopper (7) is in a frustum shape with a large upper part and a small lower part, the upper end of the lower connecting hopper is open, a plurality of wedge pin holes B (10) are uniformly distributed on the periphery of the lower part of the lower connecting hopper (7), and the wedge pin holes B (10) are in a frustum shape with a large outer part and a small; the upper connecting piece (4) consists of a connecting plate B (14) and an upper connecting hopper (6), a plurality of bolt holes (5) are uniformly arranged on the connecting plate B (14), the upper end of the upper connecting hopper (6) is welded with the lower end of the connecting plate B (14), the central line of the upper connecting hopper (6) is superposed with the central line of the connecting plate B (14), the upper connecting hopper (6) is in a frustum shape with a large upper part and a small lower part, the upper end of the upper connecting hopper is open, a plurality of wedge pin holes A (8) are uniformly arranged on the periphery of the lower part of the upper connecting hopper (6), the wedge pin holes A (8) are in a circular truncated cone shape with a large outer part and a small inner part, the periphery of the upper part of the upper column (1) is provided with holes (15) corresponding to the wedge pin holes A (8), the holes (15) are horizontal cylindrical holes, and the inner diameter of the; the wedge pin (9) is divided into a head section (16), a section (17) which is matched with a wedge pin hole B, a section (18) which is matched with the wedge pin hole A, an inclined section (19) and a straight section (20), wherein the head section (16) is conical, the section (17) which is matched with the wedge pin hole B, the section (18) which is matched with the wedge pin hole A and the inclined section (19) are all in a circular truncated cone shape and sequentially form a continuous circular truncated cone shape, the straight section (20) is cylindrical, the external dimension of the section (17) which is matched with the wedge pin hole B is matched with the internal dimension of the wedge pin hole B (10), the external dimension of the section (18) which is matched with the wedge pin hole A is matched with the internal dimension of the wedge pin hole A (8), and the wedge pin (9) is made of high-strength steel; each part of the lower column (2) is completely consistent with the upper column (1), when the lower connecting hopper (7) of the lower connecting piece (3) of the upper column (1) is inserted into the upper connecting hopper (6) of the upper connecting piece (4) of the lower column (2), the lower connecting hopper (7) of the upper column (1) and the upper connecting hopper (6) of the lower column (2) are mutually overlapped, the connecting plate A (13) of the upper column (1) and the connecting plate B (14) of the lower column (2) are also mutually overlapped, a plurality of bolt holes (5) of the upper column (1) and a plurality of bolt holes (5) of the lower column (2) are in one-to-one correspondence, a plurality of wedge pin holes B (10) of the upper column (1) and a plurality of wedge pin holes A (8) of the lower column (2) are in one-to-one correspondence, the lower connecting hopper (7) of the lower connecting piece (3) of the upper column (1) and the lower column (2) are filled with concrete, and the upper reinforcement (11) of the upper column (1) and the upper reinforcement and the lower reinforcement (4) of the connecting piece (1) are respectively welded with the upper reinforcement (4) of the lower Two ends of a lower column main rib (12) of the lower column (2) are respectively welded with an upper connecting piece (4) and a lower connecting piece (3) of the lower column (2); the construction process of the upper and lower column connecting system is as follows: firstly hoisting and fixing a lower column (2), then coating epoxy glue mud or sulfur glue mud on the inner surface of an upper connecting hopper (6) of an upper connecting piece (4) of the lower column (2), coating epoxy glue mud or sulfur glue mud on the outer surface of a lower connecting hopper (7) of a lower connecting piece (3) of the upper column (1), then hoisting the upper column (1), inserting the lower connecting hopper (7) of the lower connecting piece (3) of the upper column (1) into the upper connecting hopper (6) of the upper connecting piece (4) of the lower column (2), then temporarily fixing the lower connecting piece (3) and the upper connecting piece (4) through bolt holes (5) by bolts and nuts, wherein a wedge pin hole A (8) of the lower column (2) is not necessarily completely coincided with a wedge pin hole B (10) of the upper column (1), and then driving a plurality of wedge pins (9) into a wedge pin hole A (8) of the lower column (2) and a wedge pin hole B (10) of the upper column (1), in the process of driving a first wedge pin (9) into a wedge pin hole A (8) of a lower column (2) and a wedge pin hole B (10) of an upper column (1), if the wedge pin hole A (8) and the wedge pin hole B (10) are staggered, a head section (16) of the wedge pin (9) firstly passes through the wedge pin hole A (8) and the wedge pin hole B (10) and penetrates into concrete of a lower connecting hopper (7) of a lower connecting piece (3), a section (17) matched with the wedge pin hole B and a section (18) matched with the wedge pin hole A of the wedge pin (9) forcibly adjust the relative position of the lower connecting piece (3) and the upper connecting piece (4) in the process of penetrating into the wedge pin hole A (8) and the wedge pin hole B (10) to force the wedge pin hole A (8) and the wedge pin hole B (10) to align, then the wedge pins (9) are driven one by one another, and finally a nut for fixing the lower connecting piece (3) of the upper column (1) and the upper connecting piece (4) of the lower column (2) is screwed down, the connection work of the upper column (1) and the lower column (2) is completed.
Drawings
1-upper column, 2-lower column, 3-lower connecting piece, 4-upper connecting piece, 5-bolt hole, 6-upper connecting bucket, 7-lower connecting bucket, 8-wedge pin hole A, 9-wedge pin, 10-wedge pin hole B, 11-upper column main rib, 12-lower column main rib, 13-connecting plate A, 14-connecting plate B, 15-hole, 16-head section, 17-section inosculated with wedge pin hole B, 18-section inosculated with wedge pin hole A, 19-inclined section, 20-straight section.
FIG. 1 is an exploded view of the connection of an upper column 1 and a lower column 2.
Fig. 2 is a schematic view of the upper column 1 and the lower column 2 after they are connected.
Fig. 3 is a schematic elevation view of the upper column main rib 11 of the upper column 1 welded to the lower connecting member 3 and the upper connecting member 4, and the lower column main rib 12 of the lower column 2 welded to the lower connecting member 3 and the upper connecting member 4.
Fig. 4 is a bottom view of the lower link 3.
Fig. 5 is a plan view of the upper link 4.
Figure 6 is a schematic view of a double layer wedge pin 9 connecting the upper column 1 and the lower column 2.
Fig. 7 is a longitudinal sectional view of the wedge pin 9.
Fig. 8 is a view showing a key pin hole A8 and a hole 15.
Fig. 9 is an elevation view of the lower link 3.
Detailed Description
Referring to fig. 1 to 9, a lower column 2 is hoisted and fixed, epoxy mastic or sulfur mastic is applied to the inner surface of an upper connecting bucket 6 of an upper connecting member 4 of the lower column 2, epoxy mastic or sulfur mastic is applied to the outer surface of a lower connecting bucket 7 of a lower connecting member 3 of the upper column 1, the upper column 1 is hoisted, the lower connecting bucket 7 of the lower connecting member 3 of the upper column 1 is inserted into the upper connecting bucket 6 of the upper connecting member 4 of the lower column 2, the lower connecting member 3 and the upper connecting member 4 are temporarily fixed through a bolt hole 5 by a bolt and a nut, at this time, a wedge pin hole a8 of the lower column 2 and a wedge pin hole B10 of the upper column 1 are not necessarily completely overlapped, then a plurality of wedge pins 9 are driven into a wedge pin hole a8 of the lower column 2 and a wedge pin hole B10 of the upper column 1, and in the process that a first wedge pin 9 is driven into a wedge pin hole a8 of the lower column 2 and a wedge pin hole B10 of the upper column 1, if the wedge pin hole a wedge, the head section 16 of the wedge pin 9 firstly passes through the wedge pin hole A8 and the wedge pin hole B10 and penetrates into the concrete of the lower connecting bucket 7 of the lower connecting piece 3, the matching section 17 of the wedge pin 9 and the wedge pin hole B and the matching section 18 of the wedge pin hole A forcibly adjust the relative position of the lower connecting piece 3 and the upper connecting piece 4 in the process of penetrating into the wedge pin hole A8 and the wedge pin hole B10, the wedge pin hole A8 and the wedge pin hole B10 are forced to be aligned, then the wedge pin 9 is driven one by one, finally, the fixing nut of the lower connecting piece 3 of the upper column 1 and the fixing nut of the upper connecting piece 4 of the lower column 2 are screwed, and the connecting work of the upper column 1 and the lower column 2 is completed. Need to explain: the hole 15 is a straight hole, when the wedge pin 9 is driven into the wedge pin hole A8 and the wedge pin hole B10, the rod body of the wedge pin 9 does not touch the inner wall of the hole 15 all the time, if the rod body of the wedge pin 9 touches the inner wall of the hole 15, the rod body will cause extrusion damage to the hole 15, the rod body will spread the concrete around the hole 15, and the concrete at the upper part of the hole 15 will be pulled apart; the lower connecting bucket 7 of the lower connecting piece 3 and the upper connecting bucket 6 of the upper connecting piece 4 are both designed to be frustum pyramid-shaped, and in the process that the lower connecting bucket 7 of the lower connecting piece 3 of the upper column 1 is inserted into the upper connecting bucket 6 of the upper connecting piece 4 of the lower column 2, each hole of the lower connecting piece 3 is more easily aligned with each hole of the upper connecting piece 4.
Claims (1)
1. The utility model provides a reinforced concrete upper and lower post connection system of prefabricated building which characterized by: the device consists of an upper column (1), a lower column (2), a lower connecting piece (3) and an upper connecting piece (4); the lower connecting piece (3) is embedded at the lower end of the upper column (1), the central axis of the upper column (1) is superposed with the central axis of the lower connecting piece (3), the upper connecting piece (4) is embedded at the upper end of the upper column (1), and the central axis of the upper column (1) is superposed with the central axis of the upper connecting piece (4); the lower connecting piece (3) consists of a connecting plate A (13) and a lower connecting hopper (7), a plurality of bolt holes (5) are uniformly arranged on the connecting plate A (13), the upper end of the lower connecting hopper (7) is welded with the lower end of the connecting plate A (13), the central line of the lower connecting hopper (7) is superposed with the central line of the connecting plate A (13), the lower connecting hopper (7) is in a frustum shape with a large upper part and a small lower part, the upper end of the lower connecting hopper is open, a plurality of wedge pin holes B (10) are uniformly distributed on the periphery of the lower part of the lower connecting hopper (7), and the wedge pin holes B (10) are in a frustum shape with a large outer part and a small; the upper connecting piece (4) consists of a connecting plate B (14) and an upper connecting hopper (6), a plurality of bolt holes (5) are uniformly arranged on the connecting plate B (14), the upper end of the upper connecting hopper (6) is welded with the lower end of the connecting plate B (14), the central line of the upper connecting hopper (6) is superposed with the central line of the connecting plate B (14), the upper connecting hopper (6) is in a frustum shape with a large upper part and a small lower part, the upper end of the upper connecting hopper is open, a plurality of wedge pin holes A (8) are uniformly arranged on the periphery of the lower part of the upper connecting hopper (6), the wedge pin holes A (8) are in a circular truncated cone shape with a large outer part and a small inner part, the periphery of the upper part of the upper column (1) is provided with holes (15) corresponding to the wedge pin holes A (8), the holes (15) are horizontal cylindrical holes, and the inner diameter of the; the wedge pin (9) is divided into a head section (16), a section (17) which is matched with a wedge pin hole B, a section (18) which is matched with the wedge pin hole A, an inclined section (19) and a straight section (20), wherein the head section (16) is conical, the section (17) which is matched with the wedge pin hole B, the section (18) which is matched with the wedge pin hole A and the inclined section (19) are all in a circular truncated cone shape and sequentially form a continuous circular truncated cone shape, the straight section (20) is cylindrical, the external dimension of the section (17) which is matched with the wedge pin hole B is matched with the internal dimension of the wedge pin hole B (10), the external dimension of the section (18) which is matched with the wedge pin hole A is matched with the internal dimension of the wedge pin hole A (8), and the wedge pin (9) is made of high-strength steel; each part of the lower column (2) is completely consistent with the upper column (1), when the lower connecting hopper (7) of the lower connecting piece (3) of the upper column (1) is inserted into the upper connecting hopper (6) of the upper connecting piece (4) of the lower column (2), the lower connecting hopper (7) of the upper column (1) and the upper connecting hopper (6) of the lower column (2) are mutually overlapped, the connecting plate A (13) of the upper column (1) and the connecting plate B (14) of the lower column (2) are also mutually overlapped, a plurality of bolt holes (5) of the upper column (1) and a plurality of bolt holes (5) of the lower column (2) are in one-to-one correspondence, a plurality of wedge pin holes B (10) of the upper column (1) and a plurality of wedge pin holes A (8) of the lower column (2) are in one-to-one correspondence, the lower connecting hopper (7) of the lower connecting piece (3) of the upper column (1) and the lower column (2) are filled with concrete, and the upper reinforcement (11) of the upper column (1) and the upper reinforcement and the lower reinforcement (4) of the connecting piece (1) are respectively welded with the upper reinforcement (4) of the lower Two ends of a lower column main rib (12) of the lower column (2) are respectively welded with an upper connecting piece (4) and a lower connecting piece (3) of the lower column (2); the construction process of the upper and lower column connecting system is as follows: firstly hoisting and fixing a lower column (2), then coating epoxy glue mud or sulfur glue mud on the inner surface of an upper connecting hopper (6) of an upper connecting piece (4) of the lower column (2), coating epoxy glue mud or sulfur glue mud on the outer surface of a lower connecting hopper (7) of a lower connecting piece (3) of the upper column (1), then hoisting the upper column (1), inserting the lower connecting hopper (7) of the lower connecting piece (3) of the upper column (1) into the upper connecting hopper (6) of the upper connecting piece (4) of the lower column (2), then temporarily fixing the lower connecting piece (3) and the upper connecting piece (4) through bolt holes (5) by bolts and nuts, wherein a wedge pin hole A (8) of the lower column (2) is not necessarily completely coincided with a wedge pin hole B (10) of the upper column (1), and then driving a plurality of wedge pins (9) into a wedge pin hole A (8) of the lower column (2) and a wedge pin hole B (10) of the upper column (1), in the process of driving a first wedge pin (9) into a wedge pin hole A (8) of a lower column (2) and a wedge pin hole B (10) of an upper column (1), if the wedge pin hole A (8) and the wedge pin hole B (10) are staggered, a head section (16) of the wedge pin (9) firstly passes through the wedge pin hole A (8) and the wedge pin hole B (10) and penetrates into concrete of a lower connecting hopper (7) of a lower connecting piece (3), a section (17) matched with the wedge pin hole B and a section (18) matched with the wedge pin hole A of the wedge pin (9) forcibly adjust the relative position of the lower connecting piece (3) and the upper connecting piece (4) in the process of penetrating into the wedge pin hole A (8) and the wedge pin hole B (10) to force the wedge pin hole A (8) and the wedge pin hole B (10) to align, then the wedge pins (9) are driven one by one another, and finally a nut for fixing the lower connecting piece (3) of the upper column (1) and the upper connecting piece (4) of the lower column (2) is screwed down, the connection work of the upper column (1) and the lower column (2) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569454.3A CN110241916B (en) | 2019-06-27 | 2019-06-27 | Reinforced concrete upper and lower column connecting system of prefabricated building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910569454.3A CN110241916B (en) | 2019-06-27 | 2019-06-27 | Reinforced concrete upper and lower column connecting system of prefabricated building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110241916A CN110241916A (en) | 2019-09-17 |
| CN110241916B true CN110241916B (en) | 2020-11-17 |
Family
ID=67889944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910569454.3A Active CN110241916B (en) | 2019-06-27 | 2019-06-27 | Reinforced concrete upper and lower column connecting system of prefabricated building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110241916B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287329A (en) * | 2020-02-11 | 2020-06-16 | 青岛理工大学 | PPVC modular building structure system and assembly method thereof |
| CN111305456A (en) * | 2020-03-30 | 2020-06-19 | 四川华远建设工程有限公司 | Assembled wall and construction process thereof |
| CN111576623B (en) * | 2020-06-22 | 2024-04-05 | 湖南科技大学 | Connecting node structure of assembled frame concrete building |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD139877A1 (en) * | 1978-11-03 | 1980-01-23 | Walter Mielsch | SHOCK TRAINING FOR MOST IMPORTANT WORKERS REQUESTED BY PRINTED FORCES |
| CA2683633A1 (en) * | 2007-04-13 | 2008-10-23 | Smrf, Llc | Joint for reinforced concrete pile sections |
| CN103104040A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting vertical connection and construction method thereof |
| CN103993669A (en) * | 2014-04-27 | 2014-08-20 | 绍兴精工绿筑集成建筑系统工业有限公司 | Fixed connection node of rectangular component and assembling method of fixed connection node |
| CN204983171U (en) * | 2015-09-01 | 2016-01-20 | 中国十七冶集团有限公司 | Prefabricated post connecting device |
| CN205775870U (en) * | 2016-05-27 | 2016-12-07 | 中国水利水电第五工程局有限公司 | Attachment structure for pier shaft set shaped steel formwork |
| CN207436373U (en) * | 2017-09-12 | 2018-06-01 | 中国石油大学(华东) | A kind of assembled is bolted steel core concrete column entirely |
| CN207905125U (en) * | 2018-01-10 | 2018-09-25 | 南通市建筑设计研究院有限公司 | A kind of bean column node connector of assembled architecture |
-
2019
- 2019-06-27 CN CN201910569454.3A patent/CN110241916B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD139877A1 (en) * | 1978-11-03 | 1980-01-23 | Walter Mielsch | SHOCK TRAINING FOR MOST IMPORTANT WORKERS REQUESTED BY PRINTED FORCES |
| CA2683633A1 (en) * | 2007-04-13 | 2008-10-23 | Smrf, Llc | Joint for reinforced concrete pile sections |
| CN103104040A (en) * | 2013-03-08 | 2013-05-15 | 郑州大学 | Assembled framework beam-column joint adopting vertical connection and construction method thereof |
| CN103993669A (en) * | 2014-04-27 | 2014-08-20 | 绍兴精工绿筑集成建筑系统工业有限公司 | Fixed connection node of rectangular component and assembling method of fixed connection node |
| CN204983171U (en) * | 2015-09-01 | 2016-01-20 | 中国十七冶集团有限公司 | Prefabricated post connecting device |
| CN205775870U (en) * | 2016-05-27 | 2016-12-07 | 中国水利水电第五工程局有限公司 | Attachment structure for pier shaft set shaped steel formwork |
| CN207436373U (en) * | 2017-09-12 | 2018-06-01 | 中国石油大学(华东) | A kind of assembled is bolted steel core concrete column entirely |
| CN207905125U (en) * | 2018-01-10 | 2018-09-25 | 南通市建筑设计研究院有限公司 | A kind of bean column node connector of assembled architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110241916A (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110241916B (en) | Reinforced concrete upper and lower column connecting system of prefabricated building | |
| CN201125491Y (en) | Prestress rib fixed end anchorage | |
| CN109235781B (en) | Self-centering structure and method for connecting prefabricated part steel bars through grouting sleeve | |
| CN101413397A (en) | Self drilling rock bolt | |
| CN115341540B (en) | Anchoring device for supporting sand pulp side slope and construction method thereof | |
| CN105178515A (en) | Built-in anchorage type prestress FRP rib tensioning and anchoring device | |
| CN112431626A (en) | Prestressed grouting anchor rod with hydraulic telescopic sleeve, grouting system and method | |
| CN202000344U (en) | Foundation prestressed concrete hollow square pile | |
| CN214061962U (en) | Building assembly structure connecting rod and special tool thereof | |
| CN103938620B (en) | The quick pile extension method of prestress concrete preformed pile and lock type joint stake | |
| CN212534066U (en) | Square pile mechanical connection structure | |
| CN106801428B (en) | Reinforced tensile-shear PHC pipe pile foundation structure and construction method thereof | |
| CN214884400U (en) | Connecting device for stiff concrete section steel column and reinforced concrete beam steel bars | |
| CN216475895U (en) | Shear key device for steel pipe concrete column base | |
| CN212978692U (en) | Special-shaped pile mould | |
| CN204827500U (en) | Pinniform wedge body stock | |
| CN210216405U (en) | Spiral stiffening rib steel pipe concrete pile | |
| CN215948175U (en) | PHC tubular pile connecting device | |
| CN211143505U (en) | Steel bar sleeve | |
| CN209923917U (en) | Spiral foundation pile | |
| CN108915158B (en) | Separated combined grouting sleeve and connecting method | |
| CN102587364A (en) | Connecting method between piles and simple mechanical connection structure between piles | |
| CN203821384U (en) | H-shaped pile with steel strands | |
| CN113062307A (en) | Device for improving bearing capacity of single open prestressed high-strength concrete pipe pile | |
| CN202023192U (en) | Square prestressed pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211217 Address after: 215000, 10F, Zhongheng design building, 111 Bada street, Suzhou Industrial Park, Suzhou, Jiangsu Patentee after: SUZHOU JCON BUILDING TECHNOLOGY Co.,Ltd. Address before: 448000 69 Jingmen Road, Dugao District, Jingmen high tech Zone, Jingmen, Hubei Patentee before: HUBEI SIZE NEW ENERGY TECHNOLOGY Co.,Ltd. |