CN101672070B - Slowly-bonded prestressed prefabricated integral frame joint system - Google Patents

Slowly-bonded prestressed prefabricated integral frame joint system Download PDF

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Publication number
CN101672070B
CN101672070B CN2009102095999A CN200910209599A CN101672070B CN 101672070 B CN101672070 B CN 101672070B CN 2009102095999 A CN2009102095999 A CN 2009102095999A CN 200910209599 A CN200910209599 A CN 200910209599A CN 101672070 B CN101672070 B CN 101672070B
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China
Prior art keywords
precast concrete
shape
forms
retard
column
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Expired - Fee Related
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CN2009102095999A
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Chinese (zh)
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CN101672070A (en
Inventor
刘刚
范蕴蕴
何沛伦
刘亮
盛林
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Central Research Institute of Building and Construction Co Ltd MCC Group
China Jingye Engineering Corp Ltd
Original Assignee
Central Research Institute of Building and Construction Co Ltd MCC Group
China Jingye Engineering Corp Ltd
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Priority to CN2009102095999A priority Critical patent/CN101672070B/en
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Abstract

The invention discloses a retard-bonded prestressed prefabricated integral frame joint system. The system comprises a precast concrete column, a left precast concrete beam and a right precast concrete beam; wherein, a joint part of the precast concrete column merely consists of a main reinforcement, retard-bonded prestressed tendons are respectively laid in the left precast concrete beam and the right precast concrete beam, the right end of the retard-bonded prestressed tendons in the left precast concrete beam forms a connection part, and the left end thereof is connected with an anchorage at a tensioning end; the left end of the retard-bonded prestressed tendons in the right precast concrete beam forms a connection part, and the right end thereof is connected with the anchorage at the tensioning end; the connection part of the retard-bonded prestressed tendons in the left precast concrete beam is connected with the connection part of the retard-bonded prestressed tendons in the right precast concrete beam by a connector, and the precast concrete column, the left precast concrete beam and the right precast concrete beam are connected into an integral part at the joint part by cast fine aggregate concrete. The system is characterized by good seismic performance, high fabrication degree and easy construction operation.

Description

Retard-bonded prestressed prefabricated integral frame joint system
Technical field
The present invention relates to a kind of loading in mixture and join integral concrete frame joint system, refer to a kind of retard-bonded prestressed prefabricated integral frame joint system especially.
Background technology
The present precast concrete beam that adopts, the precast prestressed concrete multistory frame system that precast concrete column is assembled, generally in factory, make precast concrete beam and precast concrete column, and precast concrete beam carried out single tension, reserve the presstressed reinforcing steel duct of two times tensioning simultaneously.After precast concrete beam and precast concrete column are in place the post-tensioned prestressing muscle is passed the reserving hole channel of precast concrete beam and precast concrete column, node is implemented secondary prestress stretch-draw precompressed, wherein the post-tensioned prestressing muscle is a unbonded prestressing tendon.The post-tensioned prestressing muscle not only can be used as the assembly unit means of construction stage but also can bear the beam-ends moment of flexure in operational phase, form whole stressed node and continuous stress frame, overcome the relatively poor defective of general assembling type node stress performance, solved the problem that the precast concrete framework is difficult to assemble.But because the employing of this kind prestressed frame form is unbonded prestressing tendon, the poor seismic behavior of structure, can not reach the requirement of " Code for design of concrete structures " GB 50010-2002 11.8.2 bar, and the process that wears the post-tensioned prestressing muscle in construction in the reserving hole channel of precast concrete beam and precast concrete column is cumbersome, is not easy to construction.
Summary of the invention
The purpose of this invention is to provide that a kind of anti-seismic performance is good, the assemblingization degree is higher, and constructing operation is easy to retard-bonded prestressed prefabricated integral frame joint system.
For achieving the above object, the present invention takes following design scheme:
A kind of retard-bonded prestressed prefabricated integral frame joint system, it comprises: precast concrete column, left precast concrete beam and right precast concrete beam; It is characterized in that, be preset with main muscle in the described precast concrete column, described precast concrete column only is made up of main muscle at position of joints, be laid with delayed bonding prestressed tendon respectively in described left precast concrete beam and the right precast concrete beam, delayed bonding prestressed tendon in the described left precast concrete beam, the right-hand member that its right-hand member extends described left precast concrete beam forms connecting portion, and its left end is connected with stretch-draw end ground tackle in being preset in described left precast concrete beam; The left end that delayed bonding prestressed tendon in the described right precast concrete beam, its left end extend described right precast concrete beam forms connecting portion, and its right-hand member is connected with stretch-draw end ground tackle in being preset in described right precast concrete beam; The connecting portion of the delayed bonding prestressed tendon in the connecting portion of the delayed bonding prestressed tendon in the described left precast concrete beam and the described right precast concrete beam is connected in the node place and by connector, and described precast concrete column, left precast concrete beam and right precast concrete beam link into an integrated entity at the pea gravel concreten of position of joints by cast.
Be laid with top reinforcement and lower floor's reinforcing bar in the described left precast concrete beam, the right-hand member that described top reinforcement extends described left precast concrete beam forms The right-hand member that shape connecting portion, described lower floor reinforcing bar extend described left precast concrete beam forms The shape connecting portion; Be laid with top reinforcement and lower floor's reinforcing bar in the described right precast concrete beam, the left end that described top reinforcement extends described right precast concrete beam forms The left end that shape connecting portion, described lower floor reinforcing bar extend described right precast concrete beam forms The shape connecting portion, described The shape connecting portion, The shape connecting portion, The shape connecting portion and The shape connecting portion is in position of joints.
Advantage of the present invention is:
1, retard-bonded prestressed prefabricated integral frame joint system of the present invention, it comprises: precast concrete column, left precast concrete beam and right precast concrete beam; Wherein, be preset with main muscle in the precast concrete column, precast concrete column only is made up of main muscle at position of joints, be laid with delayed bonding prestressed tendon respectively in left side precast concrete beam and the right precast concrete beam, delayed bonding prestressed tendon in the precast concrete beam of a left side, the right-hand member that its right-hand member extends described left precast concrete beam forms connecting portion, and its left end is connected with stretch-draw end ground tackle in being preset in left precast concrete beam; The left end that delayed bonding prestressed tendon in the right precast concrete beam, its left end extend right precast concrete beam forms connecting portion, and its right-hand member is connected with stretch-draw end ground tackle in being preset in right precast concrete beam; The connecting portion of the delayed bonding prestressed tendon in the connecting portion of the delayed bonding prestressed tendon of a left side in the precast concrete beam and the right precast concrete beam is connected in the node place and by connector, and precast concrete column, left precast concrete beam and right precast concrete beam are linked into an integrated entity by the pea gravel concreten of pouring into a mould at position of joints.During site operation, make precast concrete column in place earlier, and at the left and right sides of precast concrete column installation falsework, then left precast concrete beam and the lifting of right precast concrete column are placed on the falsework, again with the left side of connector with position of joints, delayed bonding prestressed tendon in the right precast concrete beam is connected, next position of joints is built with pea gravel concreten, with precast concrete column, left side precast concrete beam and right precast concrete beam link into an integrated entity, after treating that pea gravel concreten reaches prescribed strength, to a left side, delayed bonding prestressed tendon in the right precast concrete beam carries out stretch-draw makes delayed bonding prestressed tendon bear certain prestressing force.This shows, the present invention's assembling degree is higher, and preset delayed bonding prestressed tendon at left and right precast concrete beam, that has avoided complexity of the prior art wears the muscle operation, make constructing operation of the present invention easy, and because delayed bonding prestressed tendon has the mechanical property of bonded prestressed tendon, compare, improved the anti-seismic performance of joint system with prior art.
2, retard-bonded prestressed prefabricated integral frame joint system of the present invention wherein, is laid with top reinforcement and lower floor's reinforcing bar in the left precast concrete beam, the right-hand member that top reinforcement extends left precast concrete beam forms The right-hand member that shape connecting portion, lower floor's reinforcing bar extend left precast concrete beam forms The shape connecting portion; Be laid with top reinforcement and lower floor's reinforcing bar in the right precast concrete beam, the left end that top reinforcement extends right precast concrete beam forms The left end that shape connecting portion, lower floor's reinforcing bar extend right precast concrete beam forms The shape connecting portion, The shape connecting portion, The shape connecting portion, The shape connecting portion and Therefore the shape connecting portion can be connected with the pea gravel concreten of cast securely in position of joints.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the precast concrete column structural representation among the present invention
Fig. 3 is the left precast concrete beam structural representation among the present invention
Fig. 4 is the right precast concrete beam structural representation among the present invention
The specific embodiment
For ease of the further purpose means of understanding the present invention, attached now with preferred embodiment figure detailed description as back:
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, retard-bonded prestressed prefabricated integral frame joint system of the present invention, it comprises: precast concrete column 1, left precast concrete beam 2 and right precast concrete beam 3; Wherein, be preset with main muscle 4 in the precast concrete column 1, precast concrete column 1 only is made up of main muscle 4 at position of joints, be laid with delayed bonding prestressed tendon respectively in left side precast concrete beam 2 and the right precast concrete beam 3, delayed bonding prestressed tendon in the precast concrete beam 2 of a left side, the right-hand member that its right-hand member extends left precast concrete beam forms connecting portion 5, and its left end is connected with stretch-draw end ground tackle (not shown) in being preset in left precast concrete beam; The left end that delayed bonding prestressed tendon in the right precast concrete beam 3, its left end extend right precast concrete beam forms connecting portion 6, and its right-hand member is connected with stretch-draw end ground tackle (not shown) in being preset in right precast concrete beam; The connecting portion 6 of the delayed bonding prestressed tendon in the connecting portion 5 of the delayed bonding prestressed tendon of a left side in the precast concrete beam and the right precast concrete beam is positioned at the node place and is connected by connector 7, and precast concrete column 1, left precast concrete beam 2 and right precast concrete beam 3 are linked into an integrated entity by the pea gravel concreten of pouring into a mould 8 at position of joints.
Be laid with top reinforcement 9 and lower floor's reinforcing bar 10 in the precast concrete beam 2 of a left side, the right-hand member that top reinforcement 9 extends left precast concrete beam forms The right-hand member that shape connecting portion 11, lower floor's reinforcing bar extend left precast concrete beam forms Shape connecting portion 12; Be laid with top reinforcement 13 and lower floor's reinforcing bar 14 in the right precast concrete beam 3, the left end that top reinforcement 13 extends right precast concrete beam forms The left end that shape connecting portion 15, lower floor's reinforcing bar 14 extend right precast concrete beam forms Shape connecting portion 16, Shape connecting portion 11, Shape connecting portion 12, Shape connecting portion 15 Hes Shape connecting portion 16 is positioned at position of joints.

Claims (2)

1. retard-bonded prestressed prefabricated integral frame joint system, it comprises: precast concrete column, left precast concrete beam and right precast concrete beam; It is characterized in that, be preset with main muscle in the described precast concrete column, described precast concrete column only is made up of main muscle at position of joints, be laid with delayed bonding prestressed tendon respectively in described left precast concrete beam and the right precast concrete beam, delayed bonding prestressed tendon in the described left precast concrete beam, the right-hand member that its right-hand member extends described left precast concrete beam forms connecting portion, and its left end is connected with stretch-draw end ground tackle in being preset in described left precast concrete beam; The left end that delayed bonding prestressed tendon in the described right precast concrete beam, its left end extend described right precast concrete beam forms connecting portion, and its right-hand member is connected with stretch-draw end ground tackle in being preset in described right precast concrete beam; The connecting portion of the delayed bonding prestressed tendon in the connecting portion of the delayed bonding prestressed tendon in the described left precast concrete beam and the described right precast concrete beam is connected in the node place and by connector, and described precast concrete column, left precast concrete beam and right precast concrete beam link into an integrated entity at the pea gravel concreten of position of joints by cast.
2. retard-bonded prestressed prefabricated integral frame joint system according to claim 1 is characterized in that, is laid with top reinforcement and lower floor's reinforcing bar in the described left precast concrete beam, and the right-hand member that described top reinforcement extends described left precast concrete beam forms The right-hand member that shape connecting portion, described lower floor reinforcing bar extend described left precast concrete beam forms The shape connecting portion; Be laid with top reinforcement and lower floor's reinforcing bar in the described right precast concrete beam, the left end that described top reinforcement extends described right precast concrete beam forms The left end that shape connecting portion, described lower floor reinforcing bar extend described right precast concrete beam forms The shape connecting portion, described The shape connecting portion, The shape connecting portion, The shape connecting portion and The shape connecting portion is in position of joints.
CN2009102095999A 2009-10-30 2009-10-30 Slowly-bonded prestressed prefabricated integral frame joint system Expired - Fee Related CN101672070B (en)

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CN101672070B true CN101672070B (en) 2011-05-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677784B (en) * 2012-05-21 2014-02-12 天津大学 Prefabricated concrete pipe column and reinforced concrete beam node structure and construction method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104131616B (en) * 2014-07-16 2016-05-04 长沙理工大学 Self-resetting precast and assembled reinforced concrete framework
CN104532953B (en) * 2014-12-23 2017-01-11 中国建筑第八工程局有限公司 3D printing based assembly type special-shaped column framework structure and construction method thereof
CN105625572B (en) * 2016-02-29 2018-05-15 东南大学 Distinctiveness uses the precast prestressed concrete frame bean column node of high performance material
CN105649203B (en) * 2016-02-29 2018-07-17 东南大学 Precast prestressed concrete frame bean column node with U-shaped muscle and sleeve
CN105735470B (en) * 2016-02-29 2018-08-21 东南大学 The differential precast concrete frame system using high performance material
CN105625573B (en) * 2016-02-29 2018-08-21 东南大学 The bean column node of intensity presstressed reinforcing steel and regular reinforcement sleeve connection in beam bottom
CN106499053B (en) * 2016-11-30 2019-07-16 东北林业大学 A kind of assembled integral pre-stressed concrete frame structure connecting component

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CN2189625Y (en) * 1993-12-15 1995-02-15 曹凤兰 Preformed frame component of hollow ferro-concrete
CN2685429Y (en) * 2003-12-15 2005-03-16 昆明理工大学 Precasted deformed column for integral prestress assembling plate-column structure
CN2784490Y (en) * 2005-04-22 2006-05-31 北京工业大学 Prestress connection node for beam column of assembled concrete frame structure

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
CN2189625Y (en) * 1993-12-15 1995-02-15 曹凤兰 Preformed frame component of hollow ferro-concrete
CN2685429Y (en) * 2003-12-15 2005-03-16 昆明理工大学 Precasted deformed column for integral prestress assembling plate-column structure
CN2784490Y (en) * 2005-04-22 2006-05-31 北京工业大学 Prestress connection node for beam column of assembled concrete frame structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677784B (en) * 2012-05-21 2014-02-12 天津大学 Prefabricated concrete pipe column and reinforced concrete beam node structure and construction method thereof

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