CN111075055A - Use method of prefabricated assembly type shear wall steel threaded sleeve - Google Patents

Use method of prefabricated assembly type shear wall steel threaded sleeve Download PDF

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Publication number
CN111075055A
CN111075055A CN201911297273.6A CN201911297273A CN111075055A CN 111075055 A CN111075055 A CN 111075055A CN 201911297273 A CN201911297273 A CN 201911297273A CN 111075055 A CN111075055 A CN 111075055A
Authority
CN
China
Prior art keywords
steel
shear
prefabricated
prefabricated shear
reserved
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.)
Pending
Application number
CN201911297273.6A
Other languages
Chinese (zh)
Inventor
俞天波
卢磊
徐健
马寅
顾华华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Construction Group Co Ltd
Shanghai Construction No 5 Group Co Ltd
Original Assignee
Shanghai Construction Group Co Ltd
Shanghai Construction No 5 Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Construction Group Co Ltd, Shanghai Construction No 5 Group Co Ltd filed Critical Shanghai Construction Group Co Ltd
Priority to CN201911297273.6A priority Critical patent/CN111075055A/en
Publication of CN111075055A publication Critical patent/CN111075055A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/56Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162Connectors or means for connecting parts for reinforcements

Abstract

The invention provides a using method of a prefabricated assembly type shear wall steel threaded sleeve, wherein the shear wall steel threaded sleeve is placed at a prefabricated shear wall operation hand hole, a steel gasket is installed at the lower side of the prefabricated shear wall operation hand hole, a connecting steel bar is reserved at the upper end of a lower layer of prefabricated shear wall and penetrates through the lower side steel gasket, and a connecting steel bar is reserved at the upper end of the lower layer of prefabricated shear wall and extends into one end of the shear wall steel threaded sleeve to be fixedly connected; and a steel gasket is arranged on the upper side of the prefabricated shear wall operation hand hole, connecting steel bars are reserved at the lower end of the upper prefabricated shear wall and penetrate through the upper steel gasket, and the connecting steel bars are reserved at the lower end of the upper prefabricated shear wall and extend into the other end of the shear wall steel thread sleeve and are fixedly connected. The sleeve can solve the problem of discontinuous steel bars in the bolt connection of the prefabricated shear wall, reduce the problem of unreasonable stress on the steel bars and concrete of the prefabricated shear wall caused by discontinuous steel bars to a great extent, and ensure the construction quality of the bolt connection of the prefabricated shear wall.

Description

Use method of prefabricated assembly type shear wall steel threaded sleeve
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a prefabricated shear wall bolted connection.
Background
With the rapid development of economy and the rapid advance of building industrialization technology in recent years, China has made a great deal of development in the field of prefabricated building. Wherein, the bolt dry type connection of the prefabricated shear wall is widely applied to buildings. The bolt dry connection of the prefabricated shear wall usually adopts a large space (steel bar space 200mm) and a large diameter (steel bar R20 mm) to meet the operation surface in the hand hole (bolt connection) of the wall plate in the design. The vertical steel bars of the prefabricated shear wall are disconnected at the hand hole position; the prefabricated shear is connected with the prefabricated shear wall on the upper layer through a steel gasket and a bolt in a fastening mode through a reserved steel bar at the top of the prefabricated shear wall on the lower layer. The concrete at the lower side of the hand hole is subjected to the local pressure action of the steel gasket, so that cracks are easily generated; in addition, the connection is realized in a bolt fastening mode, and the torque required by the design is difficult to achieve by using a wrench in construction; the elongation and yield of the steel bar are difficult to control accurately in construction.
In conclusion, in order to solve the problems in the prior art, the invention provides the bidirectional adjustable high-strength steel threaded sleeve for the bolt connection of the prefabricated shear wall, which can solve the problem of discontinuous steel bars in the bolt connection of the prefabricated shear wall, greatly reduces the problem of unreasonable stress on the steel bars and concrete of the prefabricated shear wall caused by the discontinuous steel bars, and provides guarantee for the construction quality of the bolt connection of the prefabricated shear wall; meanwhile, conditions are created for the popularization of the bolt connection of the prefabricated shear wall to high-intensity areas.
Disclosure of Invention
In order to solve the technical problem, the invention provides a using method of a prefabricated assembly type shear wall steel thread sleeve, which comprises the following steps: placing a shear wall steel threaded sleeve at a prefabricated shear wall operation hand hole, mounting a steel gasket at the lower side of the prefabricated shear wall operation hand hole, reserving a connecting steel bar at the upper end of a lower layer of prefabricated shear wall to penetrate through the lower side steel gasket, and reserving a connecting steel bar at the upper end of the lower layer of prefabricated shear wall to extend into one end of the shear wall steel threaded sleeve to be fixedly connected; and a steel gasket is arranged on the upper side of the prefabricated shear wall operation hand hole, connecting steel bars are reserved at the lower end of the upper prefabricated shear wall and penetrate through the upper steel gasket, and the connecting steel bars are reserved at the lower end of the upper prefabricated shear wall and extend into the other end of the shear wall steel thread sleeve and are fixedly connected.
Preferably, the elongation of the steel bars of the upper reserved connecting steel bars and the lower reserved connecting steel bars is 0.3 sigmaconAnd (4) calculating.
Preferably, the screw thread of the connecting steel bar reserved at the upper end of the lower prefabricated shear wall is 5-6cm higher than the lower side of the operation hand hole of the prefabricated shear wall.
Preferably, the exposed screw threads of the connecting steel bars reserved at the lower end of the upper-layer prefabricated shear wall are 5-6cm lower than the upper side of the operation hand hole of the prefabricated shear wall.
Preferably, two ends of the shear wall steel thread sleeve can perform bidirectional length adjustment on the inserted reserved steel bars through the internal threads of the shear wall steel thread sleeve.
Compared with the prior art, the invention has the following effects:
(1) for the bolt connection of the prefabricated shear wall, the defect that vertical steel bars are discontinuous is overcome;
(2) after the bidirectional adjustable high-strength steel threaded sleeve is added in the traditional bolted connection of the prefabricated shear wall, the steel bars and the concrete are connected together, and the wall is prevented from cracking caused by local stress under the common stress;
(3) the problem of discontinuity of vertical steel bars of the prefabricated shear wall is solved, the ductility of the prefabricated shear wall is indirectly increased, the anti-seismic performance is improved, and a new thought is provided for the development of the prefabricated shear wall to a high-intensity area.
Drawings
FIG. 1 is a structure of a precast shear wall bolted joint;
FIG. 2 is a schematic illustration of a prefabricated shear wall bolted connection;
FIG. 3 is a schematic view of a prefabricated shear wall steel threaded sleeve of the present invention;
fig. 4 is a schematic diagram of a hand hole node of the present invention.
Wherein 1, wall body steel bars; 2. prefabricating a wall body on the upper layer; 3. a slurry outlet; 4. special plugging materials; 5. prefabricating a composite floor slab; 6. reserving a steel bar at the lower layer; 7. a lower layer prefabricated wall body; 8. reserving a steel bar thread, and exposing the thread for at least 5 cm; 9. operating hand holes; 10. an upper end steel backing plate; 11. a lower end steel backing plate; 12. the high-strength steel threaded sleeve is adjustable in two directions;
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As shown in fig. 2, the present invention is a method for using a prefabricated shear wall steel threaded sleeve, and the method is described with reference to the following specific embodiments:
(1) installing a lower-layer prefabricated shear wall (or embedding connecting steel bars);
(2) hoisting the upper-layer prefabricated shear wall board in place, installing an inclined strut, and leveling and verticality adjusting the prefabricated shear wall;
(3) and the screw thread of the reserved steel bar at the upper end of the lower-layer prefabricated shear wall is ensured to be 5-6cm higher than the bottom surface of the operation hand hole of the prefabricated shear wall.
(4) Connecting reinforcing steel bars are reserved at the lower end of the upper layer of shear wall, and exposed screw threads of the reinforcing steel bars are 5-6cm lower than the highest surface of the operation hand hole of the shear wall.
(5) The steel gasket at the lower side of the operation hand hole is firstly fastened with the lower end connecting steel bar by adopting the bidirectional adjustable high-strength steel thread sleeve.
(6) After the lower end connecting steel bar is fixed, the steel base plate on the upper part of the operation hand hole is fixed by the other end of the bidirectional adjustable high-strength threaded sleeve.
(7) Controlling the elongation of the steel bar according to the principle of prestress and according to 0.3 sigmaconAnd (5) controlling.
As shown in fig. 3, two ends of the shear wall steel-threaded sleeve can perform bidirectional length adjustment on the inserted reserved steel bars through the internal threads of the shear wall steel-threaded sleeve.
As shown in fig. 4, the screw thread of the reserved steel bar at the upper end of the lower layer of the prefabricated shear wall is 6cm higher than the bottom surface of the operation hand hole of the prefabricated shear wall, and the exposed screw thread of the reserved connecting steel bar at the lower end of the upper layer of the prefabricated shear wall is 6cm lower than the highest surface of the operation hand hole of the shear wall.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims (5)

1. The using method of the prefabricated shear wall steel threaded sleeve is characterized in that the shear wall steel threaded sleeve is placed at a prefabricated shear wall operation hand hole, a steel gasket is installed on the lower side of the prefabricated shear wall operation hand hole, a connecting steel bar is reserved at the upper end of a lower layer of prefabricated shear wall and penetrates through the lower steel gasket, and a connecting steel bar is reserved at the upper end of the lower layer of prefabricated shear wall and extends into one end of the shear wall steel threaded sleeve to be fixedly connected; and a steel gasket is arranged on the upper side of the prefabricated shear wall operation hand hole, connecting steel bars are reserved at the lower end of the upper prefabricated shear wall and penetrate through the upper steel gasket, and the connecting steel bars are reserved at the lower end of the upper prefabricated shear wall and extend into the other end of the shear wall steel thread sleeve and are fixedly connected.
2. The method for using a prefabricated assembly type shear wall steel thread sleeve according to claim 1, wherein the elongation of the steel bars of the upper reserved connecting steel bar and the lower reserved connecting steel bar is 0.3 sigmaconAnd (4) calculating.
3. The use method of the prefabricated shear wall steel threaded sleeve according to claim 2, wherein the screw threads of the connecting steel bars reserved at the upper end of the lower prefabricated shear wall are 5-6cm higher than the lower side of the operation hand hole of the prefabricated shear wall.
4. The use method of the prefabricated shear wall steel threaded sleeve according to claim 2, wherein the exposed screw threads of the reserved connecting steel bars at the lower end of the upper-layer prefabricated shear wall are 5-6cm lower than the upper side of the prefabricated shear wall operation hand hole.
5. The method for using the prefabricated shear wall steel thread sleeve as claimed in claim 1, wherein the two ends of the shear wall steel thread sleeve can perform bidirectional length adjustment on the inserted reserved steel bars through the internal threads of the shear wall steel thread sleeve.
CN201911297273.6A 2019-12-17 2019-12-17 Use method of prefabricated assembly type shear wall steel threaded sleeve Pending CN111075055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911297273.6A CN111075055A (en) 2019-12-17 2019-12-17 Use method of prefabricated assembly type shear wall steel threaded sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911297273.6A CN111075055A (en) 2019-12-17 2019-12-17 Use method of prefabricated assembly type shear wall steel threaded sleeve

Publications (1)

Publication Number Publication Date
CN111075055A true CN111075055A (en) 2020-04-28

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CN201911297273.6A Pending CN111075055A (en) 2019-12-17 2019-12-17 Use method of prefabricated assembly type shear wall steel threaded sleeve

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005336867A (en) * 2004-05-27 2005-12-08 Ando Corp Cast-in-place grout-filled type joint device for deformed bar
CN103132656A (en) * 2013-02-19 2013-06-05 东南大学 Connecting structure for vertical reinforcement bars of prefabricated wall parts
CN103510640A (en) * 2013-09-25 2014-01-15 上海市建工设计研究院有限公司 Fabricated shear wall and assembly method thereof
CN204850152U (en) * 2015-07-20 2015-12-09 山西大学 Vertical connection preloading device of precast concrete shear force wall
CN106760055A (en) * 2017-03-29 2017-05-31 河北建筑工程学院 A kind of vertical connecting structure of fabricated shear wall and its construction method
CN208965889U (en) * 2018-09-20 2019-06-11 广东联城住工装备信息科技有限公司 Half grout sleeve connecting node and prefabricated components
CN209179247U (en) * 2018-11-12 2019-07-30 上海中房建筑设计有限公司 A kind of novel precast reinforced concrete shearing force wall connection structure
CN209760491U (en) * 2018-12-26 2019-12-10 中铁建工集团有限公司 Prefabricated shear wall connection structure

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005336867A (en) * 2004-05-27 2005-12-08 Ando Corp Cast-in-place grout-filled type joint device for deformed bar
CN103132656A (en) * 2013-02-19 2013-06-05 东南大学 Connecting structure for vertical reinforcement bars of prefabricated wall parts
CN103510640A (en) * 2013-09-25 2014-01-15 上海市建工设计研究院有限公司 Fabricated shear wall and assembly method thereof
CN204850152U (en) * 2015-07-20 2015-12-09 山西大学 Vertical connection preloading device of precast concrete shear force wall
CN106760055A (en) * 2017-03-29 2017-05-31 河北建筑工程学院 A kind of vertical connecting structure of fabricated shear wall and its construction method
CN208965889U (en) * 2018-09-20 2019-06-11 广东联城住工装备信息科技有限公司 Half grout sleeve connecting node and prefabricated components
CN209179247U (en) * 2018-11-12 2019-07-30 上海中房建筑设计有限公司 A kind of novel precast reinforced concrete shearing force wall connection structure
CN209760491U (en) * 2018-12-26 2019-12-10 中铁建工集团有限公司 Prefabricated shear wall connection structure

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