CN104499575A - Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column - Google Patents

Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column Download PDF

Info

Publication number
CN104499575A
CN104499575A CN201410682109.8A CN201410682109A CN104499575A CN 104499575 A CN104499575 A CN 104499575A CN 201410682109 A CN201410682109 A CN 201410682109A CN 104499575 A CN104499575 A CN 104499575A
Authority
CN
China
Prior art keywords
reinforced concrete
steel
steel pipe
connector
column
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.)
Granted
Application number
CN201410682109.8A
Other languages
Chinese (zh)
Other versions
CN104499575B (en
Inventor
吴顺红
黄胜
周少勋
王少重
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.)
Hubei Hongshun Steel Structure Manufacturing Co Ltd
Original Assignee
Hubei Hongshun Steel Structure Manufacturing 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 Hubei Hongshun Steel Structure Manufacturing Co Ltd filed Critical Hubei Hongshun Steel Structure Manufacturing Co Ltd
Priority to CN201410682109.8A priority Critical patent/CN104499575B/en
Publication of CN104499575A publication Critical patent/CN104499575A/en
Application granted granted Critical
Publication of CN104499575B publication Critical patent/CN104499575B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention provides a shock resistant connecting structure of a reinforced concrete composite beam and steel pipe column and belongs to the field of industrial assembly-type construction structures. A steel pipe column joint is provided with a circular positioning connector; a beam-column connecting component comprises a beam end type steel connector and a column end type steel connector, the beam end type steel connector is correspondingly connected between an upper portion longitudinal reinforcing steel bar and lower portion longitudinal reinforcing steel bar of a precast reinforced concrete lower-portion beam reinforcement cage and is connected to the lower-portion beam integrally by pouring concrete; the column end type steel connector of the integrally-connected beam-column connecting component is connected to the circular positioning connector of the steel pipe column joint, concrete is poured to the upper-portion longitudinal reinforcing steel bar of the lower portion beam and the beam-column connecting component between the steel pipe column joint and the lower portion beam, and the integral connection of the composite beam and the steel pipe column is formed. According to the shock resistant connecting structure, the connection of a reinforced concrete structure and steel structure is replaced with the mature steel structure bolting and welding connection through the beam-column connecting component; the shock resistant connecting structure is safe and reliable, and the shock resistant requirements of 'strong column and weak beam' and 'strong joint and weak component' can be met.

Description

A kind of Reinforced Concrete Composite Beams and steel pipe column antidetonation syndeton
Technical field
A kind of Reinforced Concrete Composite Beams of the present invention and steel pipe column antidetonation syndeton, belong to industrialization assembled arthitecutral structure field.
Background technology
Steel pipe column is because of its excellent performance characteristic, and be widely used in building particularly some highrise buildings, the shockproof requirements of this kind of building to building is higher, the Seismic Design Requirements of the weak component of the strong node of demand fulfillment strong column and weak beam.Reinforced Concrete Composite Beams and steel pipe column connected applications are met " industrialization of construction industry " prefabricated inherent requirement, if the anti-seismic problem that solution reinforced concrete beam is connected with steel pipe column, has meaning energetically to promotion " industrialization of construction industry ".In prior art, steel pipe column is connected with reinforced concrete beam and is mostly to intert reinforcing bar or distributing bar concrete ring beam at Nodes, this joint form construction is loaded down with trivial details, be only applicable to cast-in-situ concrete beam, therefore, need to develop that a kind of anti-seismic performance is good, the syndeton of easy construction.
Summary of the invention
The object of this invention is to provide a kind of Reinforced Concrete Composite Beams and steel pipe column antidetonation syndeton, ensure Reinforced Concrete Composite Beams and steel tubular column joints safe and reliable, simplify the on-site construction operations of beam-to-column joint, improve in-site installation efficiency of construction.
The present invention is achieved by the following technical solutions:
The antidetonation syndeton of a kind of Reinforced Concrete Composite Beams of the present invention and steel pipe column, comprise Reinforced Concrete Composite Beams, steel pipe column and beam-post switching component, described steel tubular column joints is provided with annulus and is located by connecting head, described beam-post switching component is directly connected by beam-ends shaped steel connector with styletable H profile steel connector or forms through middle connecting plate, described beam-ends shaped steel connector, correspondence is connected to the upper of prefabricated reinforced concrete lower beam reinforcing cage, between the longitudinal reinforcement of bottom, form in the below concreting of the top longitudinal reinforcement of reinforcing cage the beam-post be integrally connected with prefabricated reinforced concrete lower beam to transfer component, be located by connecting that head is corresponding to be connected respectively with steel tubular column joints annulus by with the transfer upper and lower part frange plate of styletable shaped steel connector of component and web of beam-post that this lower beam one connects, along prefabricated reinforced concrete lower beam top longitudinal reinforcement and and steel pipe column connected node between beam-post to transfer component concreting, be shaped to the superposed beam comprising concrete top beam and be connected with the one of steel column pipe.
Described Reinforced Concrete Composite Beams is made up of prefabricated reinforced concrete lower beam and cast-in-situ concrete top beam.
The reinforcing cage of described prefabricated reinforced concrete lower beam is made up of top, bottom longitudinal reinforcement and stirrup.
Beam-ends shaped steel connector between the upper and lower part longitudinal reinforcement that described correspondence is connected to reinforcing cage is for being inverted shaped steel connector, the top longitudinal reinforcement of reinforcing cage is connected with styletable H profile steel connector top frange plate, and bottom longitudinal reinforcement is corresponding with the bottom surface of being inverted T-steel connector to be connected.
Beam-ends shaped steel connector between the upper and lower part longitudinal reinforcement that described correspondence is connected to reinforcing cage is H profile steel connector, the upper and lower part longitudinal reinforcement of reinforcing cage respectively with the end face of the upper and lower frange plate of this H profile steel connector, bottom surface is corresponding connects.
Described steel tubular column joints annulus is located by connecting head, is made up of upper and lower annulus grid spacer and positioning web.
The described fillet being located by connecting the corresponding styletable H profile steel connector upper and lower part frange plate connected of head with steel tubular column joints annulus is corresponding circle arc, and its both sides are indent arc.
Reinforced Concrete Composite Beams of the present invention and steel pipe column antidetonation syndeton, by beam-post adaptor the connection of reinforced concrete structure and steel work converted to steel work maturation bolt, weld type of attachment, bolt, weldering type of attachment are safe and reliable, easy construction; Beam column adaptor place shaped steel arcs of recesses inner side intensity is greater than Reinforced Concrete Composite Beams, adaptor increases at styletable commissure width, ensure that node weld place intensity is greater than adaptor intensity, manufacture the trend successively decreased successively to the strength and stiffness that shaped steel adaptor arrives reinforced concrete beam again in styletable commissure, meet the shockproof requirements of " strong column and weak beam, the strong weak component of node "; Superposed beam reinforcing bar welds with shaped steel adaptor frange plate respectively in addition, avoids the work such as on-the-spot reinforcing bar binding, reduces field operation amount, reduction construction period.
Accompanying drawing explanation
Fig. 1 steel pipe column schematic diagram of the present invention;
The beam-ends shaped steel connector A of Fig. 2 beam of the present invention-post switching component is for being inverted T-steel connector schematic diagram;
The beam-ends shaped steel connector A of Fig. 3 beam of the present invention-post switching component is H profile steel connector schematic diagram;
Fig. 4 prefabricated reinforced concrete lower beam of the present invention and beam-post component of transferring is integrally connected schematic diagram;
The prefabricated reinforced concrete lower beam that Fig. 5 the present invention is connected with beam-post switching component one and erection of steel pipe column schematic diagram;
Fig. 6 the present invention includes the superposed beam beam-ends of concrete top beam and the one-body molded connection diagram of steel column pipe node.
The beam-ends shaped steel connector A of Fig. 7 beam of the present invention-post switching component is for inversion T-steel connector and with middle stiffener schematic diagram;
The beam-ends shaped steel connector A of Fig. 8 beam of the present invention-post switching component is H profile steel connector and with middle stiffener schematic diagram.
Detailed description of the invention
Now by reference to the accompanying drawings with typical steel pipe concrete column embodiment, further illustrate the present invention and how to implement.
The antidetonation syndeton of a kind of Reinforced Concrete Composite Beams of the present invention and steel pipe column, comprise Reinforced Concrete Composite Beams, steel pipe column and beam-post switching component, described steel tubular column joints place is provided with annulus and is located by connecting 5 (as Fig. 1), described beam-post switching component is directly connected by beam-ends shaped steel connector A with styletable H profile steel connector B or connects to form (see Fig. 2 through middle connecting plate C, 3, 7, 8), described beam-ends shaped steel connector A, correspondence is welded on the upper of prefabricated reinforced concrete lower beam 2 reinforcing cage 4, bottom longitudinal reinforcement 4-1, between 4-2, form in the below concreting of the top longitudinal reinforcement 4-1 of reinforcing cage 4 beam-the post be integrally connected with prefabricated reinforced concrete lower beam 2 to transfer component (as Fig. 4), at the scene, beam-post with prefabricated reinforced concrete lower beam 2 one to be transferred styletable H profile steel connector B upper of component, lower wings listrium B-1, B-2 and steel tubular column joints annulus be located by connecting 5 upper, lower annulus grid spacer 5-1, the welding of 5-2 correspondence, its web B-3 bolt (as Fig. 5) corresponding to positioning web 5-3, along prefabricated reinforced concrete lower beam 2 top longitudinal reinforcement 4-1 and and steel pipe column connected node between beam-post to transfer component concreting, be shaped to the superposed beam beam-ends comprising concrete top beam 3 to be connected (as Fig. 6) with the one of steel column pipe 5 node.
Described Reinforced Concrete Composite Beams 1 is made up of prefabricated reinforced concrete lower beam 2 and cast-in-situ concrete top beam 3.
The reinforcing cage 4 of described prefabricated reinforced concrete lower beam 2 is made up of top, bottom longitudinal reinforcement 4-1,4-2 and stirrup 4-3.
Described correspondence is welded on the beam-ends shaped steel connector A between upper and lower part longitudinal reinforcement 4-1,4-2 of reinforcing cage 4 for being inverted T-steel connector (as Fig. 2), the top longitudinal reinforcement 4-1 of reinforcing cage 4 welds with styletable H profile steel connector B top frange plate B-1, and bottom longitudinal reinforcement 4-2 is corresponding with the bottom surface A-2 being inverted T-steel connector to be welded.
The beam-ends shaped steel connector A between upper and lower part longitudinal reinforcement 4-1,4-2 that described correspondence is welded on reinforcing cage 4 is H profile steel connector (as Fig. 3), upper and lower part longitudinal reinforcement 4-1,4-2 of reinforcing cage 4 respectively with the end face of the upper and lower frange plate of this H profile steel connector, bottom surface A-1, A-2 are corresponding welds.
Described steel pipe column 6 node annulus is located by connecting 5, is made up of upper and lower annulus grid spacer 5-1,5-2 and positioning web 5-3.
The described fillet being located by connecting head corresponding styletable H profile steel connector B upper and lower part frange plate B-1, B-2 of connecting with steel tubular column joints annulus is corresponding circle arc, and its both sides are indent arc (as Fig. 2,3).
Embodiment 1
By above-mentioned embodiment, the beam-ends shaped steel connector A that described correspondence is welded on beam between upper and lower part longitudinal reinforcement 4-1,4-2-post switching component of prefabricated reinforced concrete lower beam 2 reinforcing cage 4 is inverted T-steel connector, the top longitudinal reinforcement 4-1 of the reinforcing cage 4 of this prefabricated reinforced concrete lower beam 2 welds with styletable H profile steel connector B top frange plate B-1, bottom longitudinal reinforcement 4-2 is corresponding with the bottom surface A-2 being inverted T-steel connector to be welded, and all the other are as described in detailed description of the invention.
Embodiment 2
By above-mentioned embodiment, the beam-ends shaped steel connector A that described correspondence is welded on beam between upper and lower part longitudinal reinforcement 4-1,4-2-post switching component of prefabricated reinforced concrete lower beam 2 reinforcing cage 4 is H profile steel connector, upper and lower part longitudinal reinforcement 4-1,4-2 of the reinforcing cage 4 of this prefabricated reinforced concrete lower beam 2 respectively with the end face of the upper and lower frange plate of this H profile steel connector, bottom surface A-1, A-2 are corresponding welds, all the other are as described in detailed description of the invention.

Claims (7)

1. the antidetonation syndeton of a Reinforced Concrete Composite Beams and steel pipe column, comprise Reinforced Concrete Composite Beams, steel pipe column and beam-post switching component, it is characterized in that, described steel tubular column joints is provided with annulus and is located by connecting head, described beam-post switching component is directly connected by beam-ends shaped steel connector with styletable H profile steel connector or forms through middle connecting plate, described beam-ends shaped steel connector, correspondence is connected to the upper of prefabricated reinforced concrete lower beam reinforcing cage, between the longitudinal reinforcement of bottom, form in the below concreting of the top longitudinal reinforcement of reinforcing cage the beam-post be integrally connected with prefabricated reinforced concrete lower beam to transfer component, be located by connecting that head is corresponding to be connected respectively with steel tubular column joints annulus by with the transfer upper and lower part frange plate of styletable shaped steel connector of component and web of beam-post that this lower beam one connects, along prefabricated reinforced concrete lower beam top longitudinal reinforcement and and steel pipe column connected node between beam-post to transfer component concreting, be shaped to the superposed beam comprising concrete top beam and be connected with the one of steel column pipe.
2. the antidetonation syndeton of a kind of Reinforced Concrete Composite Beams according to claim 1 and steel pipe column, is characterized in that, Reinforced Concrete Composite Beams is made up of prefabricated reinforced concrete lower beam and cast-in-situ concrete top beam.
3. the antidetonation syndeton of a kind of Reinforced Concrete Composite Beams according to claim 1 and steel pipe column, is characterized in that, the reinforcing cage of prefabricated reinforced concrete lower beam is made up of top, bottom longitudinal reinforcement and stirrup.
4. the antidetonation syndeton of a kind of Reinforced Concrete Composite Beams according to claim 1 and steel pipe column, it is characterized in that, beam-ends shaped steel connector between the upper and lower part longitudinal reinforcement that correspondence is connected to reinforcing cage is for being inverted shaped steel connector, the top longitudinal reinforcement of reinforcing cage is connected with styletable H profile steel connector top frange plate, and bottom longitudinal reinforcement is corresponding with the bottom surface of being inverted T-steel connector to be connected.
5. the antidetonation syndeton of a kind of Reinforced Concrete Composite Beams according to claim 1 and steel pipe column, it is characterized in that, beam-ends shaped steel connector between the upper and lower part longitudinal reinforcement that correspondence is connected to reinforcing cage is H profile steel connector, the upper and lower part longitudinal reinforcement of reinforcing cage respectively with the end face of the upper and lower frange plate of this H profile steel connector, bottom surface is corresponding connects.
6. the antidetonation syndeton of a kind of Reinforced Concrete Composite Beams according to claim 1 and steel pipe column, is characterized in that, steel tubular column joints annulus is located by connecting head, is made up of upper and lower annulus grid spacer and positioning web.
7. the antidetonation syndeton of a kind of Reinforced Concrete Composite Beams according to claim 1 and steel pipe column, it is characterized in that, be corresponding circle arc with the be located by connecting fillet of the corresponding styletable H profile steel connector upper and lower part frange plate connected of head of steel tubular column joints annulus, its both sides are indent arc.
CN201410682109.8A 2014-11-24 2014-11-24 Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column Expired - Fee Related CN104499575B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410682109.8A CN104499575B (en) 2014-11-24 2014-11-24 Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410682109.8A CN104499575B (en) 2014-11-24 2014-11-24 Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column

Publications (2)

Publication Number Publication Date
CN104499575A true CN104499575A (en) 2015-04-08
CN104499575B CN104499575B (en) 2017-01-11

Family

ID=52941016

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410682109.8A Expired - Fee Related CN104499575B (en) 2014-11-24 2014-11-24 Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column

Country Status (1)

Country Link
CN (1) CN104499575B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863271A (en) * 2015-05-29 2015-08-26 重庆大学 Concrete-filled steel tube column-reinforced concrete beam joint connection method
CN105672491A (en) * 2016-01-20 2016-06-15 重庆大学 Circular steel tube constraining reinforced concrete-steel beam framework node for nodal-region composite steel tube
CN105756349A (en) * 2016-03-23 2016-07-13 中冶建工集团有限公司 Bracket pouring construction method for core cylinder beam column
CN105804255A (en) * 2016-05-17 2016-07-27 福建工程学院 Assembling structure for prefabricated concrete beam and composite steel pipe concrete column, and construction method for assembling structure
CN105863058A (en) * 2016-06-02 2016-08-17 河南大学 Assembling type column-beam structure of antique building and preparation and splicing method of assembling type column-beam structure
CN106013495A (en) * 2016-07-13 2016-10-12 大连理工大学 Arc damper for node energy consumption and shock absorption of prefabricated structure
CN107268783A (en) * 2017-06-30 2017-10-20 广东省建筑科学研究院集团股份有限公司 A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure
CN107476433A (en) * 2017-08-17 2017-12-15 上海振华重工(集团)股份有限公司 For cylinder and the mellow and full type joint of box beam
CN112227538A (en) * 2020-09-27 2021-01-15 重庆三峡学院 Assembled concrete composite beam and steel pipe column anti-seismic connecting device
CN115030307A (en) * 2022-07-18 2022-09-09 东南大学 Local steel-concrete combined assembled beam column node

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2385006Y (en) * 1999-07-29 2000-06-28 王志林 Half-ring steel frame construction for building angular column of external wall of steel structure building
CN2399464Y (en) * 1999-07-14 2000-10-04 王志林 Steel structure building slab
JP2008038367A (en) * 2006-08-02 2008-02-21 Kajima Corp Disassemblable column/beam joint
CN102535648A (en) * 2012-03-07 2012-07-04 中国建筑第八工程局有限公司 Steel pipe column ring beam column node structure and construction method thereof
CN204326256U (en) * 2014-11-24 2015-05-13 湖北弘顺钢结构制造有限公司 A kind of Reinforced Concrete Composite Beams and steel pipe column antidetonation syndeton

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2399464Y (en) * 1999-07-14 2000-10-04 王志林 Steel structure building slab
CN2385006Y (en) * 1999-07-29 2000-06-28 王志林 Half-ring steel frame construction for building angular column of external wall of steel structure building
JP2008038367A (en) * 2006-08-02 2008-02-21 Kajima Corp Disassemblable column/beam joint
CN102535648A (en) * 2012-03-07 2012-07-04 中国建筑第八工程局有限公司 Steel pipe column ring beam column node structure and construction method thereof
CN204326256U (en) * 2014-11-24 2015-05-13 湖北弘顺钢结构制造有限公司 A kind of Reinforced Concrete Composite Beams and steel pipe column antidetonation syndeton

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104863271A (en) * 2015-05-29 2015-08-26 重庆大学 Concrete-filled steel tube column-reinforced concrete beam joint connection method
CN104863271B (en) * 2015-05-29 2018-02-02 重庆大学 A kind of steel core concrete column reinforced beam joint connecting method
CN105672491A (en) * 2016-01-20 2016-06-15 重庆大学 Circular steel tube constraining reinforced concrete-steel beam framework node for nodal-region composite steel tube
CN105672491B (en) * 2016-01-20 2018-01-30 重庆大学 The construction method of the round steel pipe constraint armored concrete steel girder frame node of the compound steel pipe in node area
CN105756349B (en) * 2016-03-23 2018-01-09 中冶建工集团有限公司 A kind of Core Walls Structure beam column bracket pouring construction method
CN105756349A (en) * 2016-03-23 2016-07-13 中冶建工集团有限公司 Bracket pouring construction method for core cylinder beam column
CN105804255A (en) * 2016-05-17 2016-07-27 福建工程学院 Assembling structure for prefabricated concrete beam and composite steel pipe concrete column, and construction method for assembling structure
CN105804255B (en) * 2016-05-17 2018-02-23 福建工程学院 Precast concrete beam and composite steel tube concrete column assembling structure and its construction method
CN105863058A (en) * 2016-06-02 2016-08-17 河南大学 Assembling type column-beam structure of antique building and preparation and splicing method of assembling type column-beam structure
CN106013495A (en) * 2016-07-13 2016-10-12 大连理工大学 Arc damper for node energy consumption and shock absorption of prefabricated structure
CN107268783A (en) * 2017-06-30 2017-10-20 广东省建筑科学研究院集团股份有限公司 A kind of existing reinforced concrete post and newly-increased reinforced beam node connecting structure
CN107476433A (en) * 2017-08-17 2017-12-15 上海振华重工(集团)股份有限公司 For cylinder and the mellow and full type joint of box beam
CN112227538A (en) * 2020-09-27 2021-01-15 重庆三峡学院 Assembled concrete composite beam and steel pipe column anti-seismic connecting device
CN112227538B (en) * 2020-09-27 2021-09-07 重庆三峡学院 Assembled concrete composite beam and steel pipe column anti-seismic connecting device
CN115030307A (en) * 2022-07-18 2022-09-09 东南大学 Local steel-concrete combined assembled beam column node
CN115030307B (en) * 2022-07-18 2024-03-12 东南大学 Local steel-concrete combined assembled beam column node

Also Published As

Publication number Publication date
CN104499575B (en) 2017-01-11

Similar Documents

Publication Publication Date Title
CN104499575A (en) Shock resistant connecting structure of reinforced concrete composite beam and steel pipe column
CN108049633B (en) Precast concrete frame beam column joint construction method
CN108118783B (en) Connecting node of steel pipe concrete column and steel beam
CN204326255U (en) A kind of Reinforced Concrete Composite Beams and steel pipe column connected node
CN204326335U (en) A kind of prefabricated reinforced concrete floor and superposed beam one assembly connection structure
KR101178381B1 (en) Steel-concrete hybrid column using square shaped steel pipe and manufacturing method thereof
CN202925717U (en) Connecting node of prefabricated concrete framework and embedded band vertical crack prefabricated concrete shear walls
CN102031846B (en) End-opened inclined rib rectangular steel tube confined concrete column
CN104251038A (en) Encased steel plate-concrete composite coupling beam and construction method thereof
CN103924680A (en) Precast concrete beam and square-rectangular concrete-filled steel tube column combining joint employing unbonded prestressed and ordinary reinforcement for connection
CN204326256U (en) A kind of Reinforced Concrete Composite Beams and steel pipe column antidetonation syndeton
CN105064512A (en) Connecting structure of circular steel tube concrete column and steel beam
CN103938730A (en) Combination node for connecting concrete beam with round steel tube concrete column through unbonded prestressed ribs and ordinary steel bars
CN107237453B (en) Steel pipe concrete composite column
CN104818726A (en) Connecting structure of steel pipe pile and reinforced concrete bearing platform
CN103924679A (en) Prestressed concrete beam and circular steel pipe concrete column combined joint connected with regular rebars
CN104153463A (en) Assembled integrated frame system and construction method thereof
CN203795608U (en) Prefabricated reinforced concrete beam and steel pipe column connecting joint
CN111021553A (en) Precast concrete post and girder steel connected node of baffle in area
CN103938732A (en) Combination joint of prefabricated concrete beam and rectangular concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars
CN103924682A (en) Circular concrete-filled steel tubular column node of unbonded pre-stressing connecting concrete beam
CN103938731B (en) Combination joint of prefabricated concrete beam and round concrete filled steel tubular column connected through pre-stressed steel bars and common steel bars
CN103924678A (en) Precast concrete beam and round concrete-filled steel tube column combining joint employing unbonded prestressed and ordinary reinforcement for connection
CN203334525U (en) SP prestressed hollow slab with single-body bolting embedded parts
CN104294917A (en) Safe and convenient connection structure for precast reinforced concrete beam and steel pipe column

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170111

Termination date: 20171124

CF01 Termination of patent right due to non-payment of annual fee