CN103485548A - Vertical reinforcement connecting method for fabricated hollow concrete superimposed shear wall - Google Patents

Vertical reinforcement connecting method for fabricated hollow concrete superimposed shear wall Download PDF

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Publication number
CN103485548A
CN103485548A CN201310486007.4A CN201310486007A CN103485548A CN 103485548 A CN103485548 A CN 103485548A CN 201310486007 A CN201310486007 A CN 201310486007A CN 103485548 A CN103485548 A CN 103485548A
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shear wall
vertical
vertical reinforcement
reinforcing bar
precast shear
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CN201310486007.4A
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CN103485548B (en
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孟凡林
孟祥瑞
付萍
孟锦
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Fanlin Assembly Building Technology Co.,Ltd.
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孟凡林
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Abstract

The invention discloses a vertical reinforcement connecting method for a fabricated hollow concrete superimposed shear wall, and belongs to the field of concrete structure engineering of building construction. The method comprises the steps of: 1, upwards throwing away vertically distributed component reinforcements in shear wall components, reserving externally slung reinforcements, and forming slotted holes in the lower parts of the components to facilitate the alignment overlapping connection of the reinforcements when the upper and lower layers of components are jointed; 2, enabling the outwards thrown reinforcements at the upper parts of the components to penetrate through floor positions when the outwards thrown reinforcements are arranged; 3, enabling the upper layers of hollow concrete shear wall components to be corresponding to vertical component holes, inserting the outwards thrown reinforcements of the lower layers of shear wall components into the holes, and connecting the externally slung reinforcements with the vertical reinforcements in the components at the positions of the reserved slotted holes in an overlapping way; 4, pouring concrete at hollow parts for core filling to finish installation of the components, and enabling the components to form a whole. According to the method disclosed by the invention, the vertical reinforcements of the fabricated hollow concrete superimposed shear wall can be simply connected, the quality is easy to ensure, the productivity is improved, the building construction quality can be ensured, and the construction cost can be lowered.

Description

The method of attachment of assembling hollow concrete overlapped shear wall vertical reinforcement
Technical field
The invention belongs to building construction concrete structure engineering field, particularly relate to prefabricated concrete structure, is a kind of improvement to existing prefabricated concrete structure design and job practices.
Background technology
Housing industrialization is the development trend that Modern Residence is built.The fabricated shear wall structure is that maximum form of structure is applied in current housing construction.
At present, the method that assembled integral shear wall structure vertical reinforcement connects mainly contains: reinforced bar sleeve grouting connects, indirectly overlaps connection, mechanical connection or welding etc.Refer to the 6th phase paper " development and the application abroad of prefabricated concrete structure key technology " that " housing industry " periodical was published in 2011, the author of this article is Li Xiaoming.Sleeve connects and need to when the precast shear wall member, reinforced bar sleeve be connected with reinforcing bar, and concreting completes element precast, during installation, the reinforcing bar of lower member is inserted in sleeve, and then grouting, complete the vertical connection of member reinforcing steel bar.This kind of connected mode is more in the U.S. and day this application, the sleeve installation accuracy of prefabricated units is had relatively high expectations, and the cost that sleeve connects is higher, and application is restricted.Overlap joint is in precast unit embedded bar lower end indirectly, be reserved with the hole that inwall is the rough surfaces such as corrugated or helical form, after the precast unit installation, overlap reinforcing bar inserts in hole to setting lap length simultaneously, by grout hole and the steam vent be connected with hole, pour into grouting material in hole, can realize that after the grouting material setting and harden overlap joint of vertical reinforcement connects.Mechanical connection is identical with the conventional concrete construction method with welding, inconvenient operation.
For the many weak points that exist in the middle of prior art, this area is needed the problem of wanting a kind of new method to solve its existence badly.
Summary of the invention
Technical problem to be solved by this invention is: a kind of method that provides assembling hollow concrete overlapped shear wall vertical reinforcement to connect, improve q&r, quickening speed of application that reinforcing bar connects, and can reduce the engineering construction cost again simultaneously.
The method of attachment of assembling hollow concrete overlapped shear wall vertical reinforcement is characterized in that:
Step 1, in the end of precast shear wall member, by the member vertical reinforcement, to top, make reserved, this top reserved part is the vertical outer reinforcing bar that gets rid of of member, the vertical outer outer length of getting rid of of getting rid of reinforcing bar of member is 15d~40d, the diameter that wherein d is the member vertical reinforcement, when the precast shear wall member is the floor top layer, the vertical outer length value that gets rid of reinforcing bar of member is that the high value of floor roof top mark deducts 20mm, the spacing of getting rid of reinforcing bar outside member is vertical is identical with the spacing of member vertical reinforcement, is 100mm~300mm;
Step 2, in the bottom of precast shear wall member, be provided with the installation slotted eye;
Step 3, described member vertical reinforcement are positioned at the both sides of the vertical hollow hole of member, and the member vertical reinforcement is walked around the vertical hollow hole of member by member annular steel tie and realized drawknot;
Step 4, at first by the vertical hollow hole of the member in the precast shear wall member of upper strata, with the member in lower floor precast shear wall member, vertical outer to get rid of reinforcing bar corresponding, then the vertical outer reinforcing bar that gets rid of of member is inserted in the vertical hollow hole of member, get rid of reinforcing bar and be connected with the member vertical reinforcement overlap joint in the precast shear wall member outside the position that slotted eye is installed is vertical by member;
Step 5, by the hollow part of precast shear wall member, filling with the core concreting, complete the installation of precast shear wall member, make the precast shear wall member form an integral body.
Described precast shear wall member consists of modular level reinforcing bar, member vertical reinforcement, member annular steel tie, the vertical hollow hole of member and concrete members.
Described member vertical reinforcement adopts in the method for attachment of the vertical hollow hole of member position that colligation connects, is welded to connect, any reinforcing bar connected mode in mechanical connection.
Described installation slotted eye is arranged at the bottom of precast shear wall member, or the bottom of precast shear wall member is not provided with the installation slotted eye.
The closed steel hoop of described member annular steel tie for forming by welding.
By above-mentioned design scheme, the present invention can bring following beneficial effect: a kind of method that prefabricated assembled hollow concrete overlapped shear wall structural element vertical reinforcement overlap joint connects, make and do not need complicated working procedure and equipment, the reliable overlap joint that just can realize prefabricated hollow concrete overlapped shear wall member vertical reinforcement connects, accelerate speed of application, reduce the link cost of reinforcing bar and then reduce the engineering construction cost.
Connection between precast shear wall of the present invention is reliable, and the security performance of this fabricated shear wall structure is equal to cast-in-place shear wall structure.
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further illustrated:
Fig. 1 is precast shear wall member elevation of the present invention.
The A-A sectional drawing that Fig. 2 is the precast shear wall member.
The B-B sectional drawing that Fig. 3 is the precast shear wall member.
Fig. 4 is the vertical connected node of precast shear wall member.
1-precast shear wall member, 2-modular level reinforcing bar, 3-member vertical reinforcement, 4-member annular steel tie, the vertical hollow hole of 5-member, vertical outer reinforcing bar, 7-installation slotted eye, 8-concrete members, the 9-concrete of getting rid of of 6-member in figure.
The specific embodiment
As shown in the figure: precast shear wall member 1 of the present invention consists of modular level reinforcing bar 2, member vertical reinforcement 3, member annular steel tie 4, the vertical hollow hole 5 of member and concrete members 8.The present invention is the end at precast shear wall member 1, by the vertical outer reinforcing bar 6 that gets rid of of the upwards reserved member of member vertical reinforcement 3, getting rid of length outward is the diameter that 15d~40d(d is vertical reinforcement 3, when the precast shear wall member is the floor top layer, for the high value of floor plates top mark subtracts 20mm), spacing is identical with the vertical reinforcement spacing, is 100mm~300mm; At member, install in splicing, outside its reserved member is vertical, get rid of in the vertical hollow hole 5 of member of reinforcing bar 6 insertion last layer precast shear wall members 1, in last layer precast shear wall member 1 bottom, slotted eye 7 places are installed, realize that with last layer member vertical reinforcement 3 overlap joint is connected, the concrete 9 of then building hollow part completes the vertical splicing of member.Default member annular steel tie 4 in prefabricated units is that the assurance vertical distribution reinforcement of wall body is realized effective drawknot in the situation that hole can be walked around in the vertical hollow hole of member 5 both sides, center.
Described installation slotted eye 7 can not arrange under the condition that can guarantee reliable overlap joint connection yet.
Specific embodiment 1(typical floor position)
Step 1, in the end of precast shear wall member 1, by member vertical reinforcement 3, to top, make reserved, this top reserved part is the vertical outer reinforcing bar 6 that gets rid of of member, the vertical outer outer length range that gets rid of that gets rid of reinforcing bar 6 of member is 15d~40d, the diameter that wherein d is member vertical reinforcement 3, the spacing of getting rid of reinforcing bar 6 outside member is vertical is identical with the spacing of member vertical reinforcement 3, is 100mm~300mm;
Step 2, be provided with in the bottom of precast shear wall member 1 slotted eye 7 is installed;
Step 3, described member vertical reinforcement 3 are positioned at the both sides of the vertical hollow hole 5 of member, and member vertical reinforcement 3 is walked around the vertical hollow hole 5 of member by member annular steel tie 4 and realized drawknot;
Step 4, at first by the vertical hollow hole 5 of the member in upper strata precast shear wall member 1, with the member in lower floor precast shear wall member 1, vertical outer to get rid of reinforcing bar 6 corresponding, then the vertical outer reinforcing bar 6 that gets rid of of member is inserted in the vertical hollow hole 5 of member, get rid of reinforcing bar 6 and be connected with member vertical reinforcement 3 overlap joints in precast shear wall member 1 outside the position that slotted eye 7 is installed is vertical by member;
Step 5, by the hollow part of precast shear wall member 1, filling with core concreting 9, complete the installation of precast shear wall member 1, make precast shear wall member 1 form an integral body.
Specific embodiment 2(top layer position)
Step 1, in the end of precast shear wall member 1, by prefabricated units vertical reinforcement 3, to top, make reserved, this top reserved part is the vertical outer reinforcing bars 6 that get rid of of prefabricated units, when precast shear wall member 1 is the floor top layer, the vertical outer outer length of getting rid of of getting rid of reinforcing bar 6 of prefabricated units is that the high value of floor roof top mark deducts 20mm, the spacing of getting rid of reinforcing bar 6 outside prefabricated units are vertical is identical with the spacing of prefabricated units vertical reinforcement 3, is 100mm~300mm;
Vertical outer the getting rid of in the Cast-in-situ Beam that reinforcing bar 6 is anchored in top layer floor absolute altitude position of step 3, described prefabricated units;
Step 4, by the hollow part of precast shear wall member 1, filling with core concreting 9, complete the installation of precast shear wall member 1, make precast shear wall member 1 form an integral body.

Claims (5)

1. assembling hollow concrete overlapped shear wall vertical reinforcement method of attachment is characterized in that:
Step 1, end in precast shear wall member (1), by member vertical reinforcement (3), to top, make reserved, this top reserved part is the vertical outer reinforcing bar (6) that gets rid of of member, the vertical outer outer length of getting rid of of getting rid of reinforcing bar (6) of member is 15d~40d, the diameter that wherein d is member vertical reinforcement (3), when precast shear wall member (1) is the floor top layer, the vertical outer length value that gets rid of reinforcing bar (6) of member is that the high value of floor roof top mark deducts 20mm, the spacing of getting rid of reinforcing bar (6) outside member is vertical is identical with the spacing of member vertical reinforcement (3), for 100mm~300mm,
Step 2, be provided with in the bottom of precast shear wall member (1) slotted eye (7) is installed;
Step 3, described member vertical reinforcement (3) are positioned at the both sides of the vertical hollow hole of member (5), and member vertical reinforcement (3) is walked around the vertical hollow hole of member (5) by member annular steel tie (4) and realized drawknot;
Step 4, at first by the vertical hollow hole of the member in upper strata precast shear wall member (1) (5), with member in lower floor's precast shear wall member (1), vertical outer to get rid of reinforcing bar (6) corresponding, then the vertical outer reinforcing bar (6) that gets rid of of member is inserted in the vertical hollow hole of member (5), get rid of reinforcing bar (6) and be connected with member vertical reinforcement (3) overlap joint in precast shear wall member (1) outside the position that slotted eye (7) is installed is vertical by member;
Step 5, by the hollow part of precast shear wall member (1), filling with core concreting (9), complete the installation of precast shear wall member (1), make precast shear wall member (1) form an integral body.
2. assembling hollow concrete overlapped shear wall vertical reinforcement according to claim 1 method of attachment is characterized in that: described precast shear wall member (1) consists of modular level reinforcing bar (2), member vertical reinforcement (3), member annular steel tie (4), the vertical hollow hole of member (5) and concrete members (8).
3. assembling hollow concrete overlapped shear wall vertical reinforcement according to claim 1 method of attachment is characterized in that: described member vertical reinforcement (3) adopts in the method for attachment of the vertical hollow hole of member (5) position that colligation connects, is welded to connect, any reinforcing bar connected mode in mechanical connection.
4. assembling hollow concrete overlapped shear wall vertical reinforcement according to claim 1 method of attachment, it is characterized in that: described installation slotted eye (7) is arranged at the bottom of precast shear wall member (1), or the bottom of precast shear wall member (1) is not provided with installation slotted eye (7).
5. assembling hollow concrete overlapped shear wall vertical reinforcement according to claim 1 method of attachment is characterized in that: the closed steel hoop of described member annular steel tie (4) for forming by welding.
CN201310486007.4A 2013-10-17 2013-10-17 Assembling hollow concrete overlapped shear wall Vertical bar connection method Active CN103485548B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047381A (en) * 2014-07-04 2014-09-17 孟凡林 Assembly integrated type lightly reinforced concrete shear wall structure
CN104878855A (en) * 2015-05-05 2015-09-02 合肥工业大学 Wallboard interlayer connection for use at bottom enhanced part of laminated shear wall structure
CN106193623A (en) * 2016-07-29 2016-12-07 刘祥锦 A kind of prefabricated concrete structure construction method
CN107254933A (en) * 2017-07-17 2017-10-17 广东省建科建筑设计院有限公司 The high-rise single through hole precast shear wall of assembled and its assembling structure and construction method
CN107762072A (en) * 2017-11-06 2018-03-06 河南远大天成住宅工业股份有限公司 A kind of wall vertical reinforcement constrains construction method
CN108412131A (en) * 2018-05-15 2018-08-17 孟凡林 The connecting node of the vertical distribution bar of assembled circular hole slab shear wall and connection method
CN108729591A (en) * 2018-05-22 2018-11-02 吉林建筑大学 Circular hole slab shear wall is vertically distributed the positioning device and localization method of connection reinforcing bar
CN111749395A (en) * 2020-06-22 2020-10-09 吉林建筑大学 Hollow partition plate and vertical connection method thereof
CN114892840A (en) * 2022-04-08 2022-08-12 吉林建筑大学 Prefabricated assembly type concrete prefabricated shear wall with mould net and construction method

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CN101967851A (en) * 2009-07-28 2011-02-09 董杨 Board-mixing structure assembly type house and building method thereof
CN102409796A (en) * 2011-08-24 2012-04-11 中国建筑设计研究院 Fabricated blocks, fabricated-block building system and construction method thereof
CN102808465A (en) * 2012-08-08 2012-12-05 沈阳建筑大学 Assembly connecting structure and assembly connecting method of assembled concrete frame and shear wall combination

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GB1035631A (en) * 1964-01-16 1966-07-13 Nuclear Power Plant Co Ltd Core access assembly for nuclear reactors
CN2327740Y (en) * 1997-06-12 1999-07-07 易静 Lightweight porous wall panel
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104047381A (en) * 2014-07-04 2014-09-17 孟凡林 Assembly integrated type lightly reinforced concrete shear wall structure
CN104878855A (en) * 2015-05-05 2015-09-02 合肥工业大学 Wallboard interlayer connection for use at bottom enhanced part of laminated shear wall structure
CN106193623A (en) * 2016-07-29 2016-12-07 刘祥锦 A kind of prefabricated concrete structure construction method
CN107254933A (en) * 2017-07-17 2017-10-17 广东省建科建筑设计院有限公司 The high-rise single through hole precast shear wall of assembled and its assembling structure and construction method
CN107762072B (en) * 2017-11-06 2020-03-17 河南远大天成住宅工业股份有限公司 Wall vertical steel bar constraint construction method
CN107762072A (en) * 2017-11-06 2018-03-06 河南远大天成住宅工业股份有限公司 A kind of wall vertical reinforcement constrains construction method
CN108412131B (en) * 2018-05-15 2020-05-01 孟凡林 Connecting node and connecting method for vertically distributed reinforcing steel bars of assembled circular hole plate shear wall
CN108412131A (en) * 2018-05-15 2018-08-17 孟凡林 The connecting node of the vertical distribution bar of assembled circular hole slab shear wall and connection method
CN108729591A (en) * 2018-05-22 2018-11-02 吉林建筑大学 Circular hole slab shear wall is vertically distributed the positioning device and localization method of connection reinforcing bar
CN108729591B (en) * 2018-05-22 2020-05-01 吉林建筑大学 Positioning device and positioning method for vertically distributed connecting steel bars of round hole plate shear wall
CN111749395A (en) * 2020-06-22 2020-10-09 吉林建筑大学 Hollow partition plate and vertical connection method thereof
CN114892840A (en) * 2022-04-08 2022-08-12 吉林建筑大学 Prefabricated assembly type concrete prefabricated shear wall with mould net and construction method
CN114892840B (en) * 2022-04-08 2023-11-24 吉林建筑大学 Prefabricated concrete shear wall with mould net and construction method

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Denomination of invention: Vertical reinforcement connecting method for fabricated hollow concrete superimposed shear wall

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