CN106948481A - Prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part - Google Patents
Prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part Download PDFInfo
- Publication number
- CN106948481A CN106948481A CN201710301880.XA CN201710301880A CN106948481A CN 106948481 A CN106948481 A CN 106948481A CN 201710301880 A CN201710301880 A CN 201710301880A CN 106948481 A CN106948481 A CN 106948481A
- Authority
- CN
- China
- Prior art keywords
- concrete
- beams
- column
- keyway
- rod irons
- 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
Links
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
- 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
- E04B1/22—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 with parts being prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention discloses a kind of prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part, including precast concrete column (1) and precast concrete beam (2), one end of beams of concrete (2) is shelved on the concrete cover of concrete column (1) upper end, formed joint cores (3), leave U-shaped keyway (21) in beams of concrete (2) end, core beam (22) and PC rod irons (23) are provided with U-shaped keyway (21), beams of concrete (2) end is stretched out in the free end of PC rod irons (23), soap-free emulsion polymeization processing is done to PC rod irons using pvc pipe (4) in keyway；Pier nose bar dowel (5) is respectively equipped with beams of concrete (2) joint cores (3) internal upper part and bottom, elongated regular reinforcement (6) is provided with beams of concrete (2) top.The beam-column connection of the present invention, low cost, beam column composition surface shearing resistance are strong, easy construction, anti-seismic performance is good, deformability is strong, cracking resistance good.
Description
Technical field
The invention belongs to concrete frame structure technical field, particularly a kind of low cost, beam column composition surface shearing resistance be strong,
Easy construction, the good prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part of anti-seismic performance.
Background technology
To meet the anti-seismic performance requirement of assembly concrete frame structure, typically phase is passed through between prefabricated post, precast beam
Close construction measure and solve the problems, such as its connection reliability.
Currently known connecting structure includes beam-ends and sets groove, and beam bottom principal rod uses steel strand wires, and steel strand wires are not anchored into
Joint cores, groove and node district, which to set up make with crotch steel strand wires, overlaps the connection of the U-shaped reinforcing bar being connected and cast-in-place concrete
Node；Or beam-ends stays and sets keyway, while steel strand wires anchor into joint cores and goed deep into the beam keyway of opposite, while in node core
Additional bar is placed in heart district keyway, it is then whole to be poured onto together；Or beam-ends sets and shelves step-like bracket, beam bottom stretching one
The regular reinforcement with crotch of measured length stretches into beam column node area, the connecting structure of node cast-in-place concrete；Or pass through post side
And beam-ends sets the assembly node being attached between connection steel member, beam column steel member with bolt.
Above-mentioned known connecting structure, sets groove for beam-ends and steel strand wires in groove is made into crotch processing, separately set U-shaped steel
Muscle makees the construction that overlap joint is connected with steel strand wires, and the positioning of site operation U-shaped reinforcing bar is difficult, U-shaped muscle and the steel strand wires in beam end groove
Overlap joint connection transmission force property is poor, causes the ductility of node relatively small；
For the node directly anchored into the beam keyway of opposite using steel strand wires, steel strand anchoring poor-performing, for margin knot
Point steel strand anchoring length is relatively inaccessible to require；
The construction that crotch processing directly anchors into node district is done for the reinforcing bar head that certain length is stretched out in beam end bottom, its
Different directions beam bottom reinforcing bar stretches into node district and often there is Liang Yuliang or beam and the mutual collision problem of post reinforcing bar, increases prefabricated and peace
Fill difficulty；
Beam column is higher by steel member bolt connection contraposition precise requirements, and economic index is bad, and easy-to-rust etc., limit
Its popularization and application is made.
In a word, the problem of prior art is present be：Prefabrication and assembly construction concrete frame beam-column connection cost is high, beam column connects
Conjunction face shearing resistance is not strong enough, construction is inconvenient, anti-seismic performance is not good enough.
The content of the invention
Section is connected it is an object of the invention to provide a kind of prefabrication and assembly construction concrete frame beam column based on the high strengthening tendons in part
Point, low cost, beam column composition surface shearing resistance are strong, easy construction, anti-seismic performance are good.
The technical solution for realizing the object of the invention is：
A kind of prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part, including precast concrete column and
Precast concrete beam, one end of the beams of concrete is shelved on the concrete cover of concrete column upper end, forms node core
U-shaped keyway is left in heart district, the beams of concrete end, and core beam and PC rod irons are provided with the U-shaped keyway, the PC rod irons
Beams of concrete end is stretched out in free end；Soap-free emulsion polymeization processing is done to PC rod irons using pvc pipe in keyway；In concrete girder connection core
Heart district internal upper part and bottom are respectively equipped with pier nose bar dowel；Elongated regular reinforcement is provided with beams of concrete internal upper part.
Compared with prior art, its remarkable advantage is the present invention：
1st, low cost：The present invention is using the Prefabricated pre-tensioned method prestressed concrete beam for configuring PC rod irons, it is possible to decrease Liang Yonggang
Amount reduces beam section, reaches and saves material, reduces the purpose of cost；
2nd, shearing resistance is strong：Prefabricated beam-ends, which is set, sets a core beam in certain length U-shaped keyway, groove, while being set in keyway
Shear connector is put, the shearing resistance on beam column composition surface is improved；Core beam action is primarily to the intensity of enhancing keyway bottom, is prevented
Splined portion concrete is refuted too early, and concrete can be bonded by adding a core beam；
3rd, easy construction：The setting of keyway, it is possible to increase the free bend segment length of PC rod irons, can more easily utilize PC steel
The pliability of rod carries out spatial intersecting bending, and different directions beam bottom reinforcing bar is easily collided with post muscle when thoroughly solution precast beam is in place
Construction difficult problem；
4th, anti-seismic performance is good：PC rod irons are stretched into node district to be bent up fully anchoring, the continuous of back reinforcing bar, node and mixes upwards
The one-piece casting of soil is coagulated, strong ties node is realized, the shock resistance of beam, post can be given full play to, improves integrally-built antidetonation energy
Power.
5th, cracking resistance is good：Prestressing force is applied to the PC rod irons that precast beam is configured, configuration high tensile reinforcement is can effectively solve the problem that
The problem of distress in concrete carries out wide.
6th, deformability is strong：Two pier nose reinforcing bars are placed by the position up and down combined in beam column respectively, while in keyway
It is interior that one section of soap-free emulsion polymeization processing is done to PC rod irons, so as to realize enhancing beam column binding site, realize beam-ends plastic hinge, increase section
Point deformation ability.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of the prefabrication and assembly construction concrete frame beam-column connection of the invention based on the high strengthening tendons in part
Figure.
Fig. 2 is the internal structure detail drawing of pre-tension prestressed concrete beam in Fig. 1.
Fig. 3 is the detail of construction of pier nose bar dowel in Fig. 1.
In figure, precast concrete column 1, precast concrete beam 2, joint cores 3, U-shaped keyway 21, core beam 22, PC rod irons
23, pvc pipe 4, pier nose bar dowel 5, regular reinforcement 6.
Embodiment
As shown in figure 1, the prefabrication and assembly construction concrete frame beam-column connection of the invention based on the high strengthening tendons in part, including it is pre-
Concrete column 1 and precast concrete beam 2 processed, one end of the beams of concrete 2 are shelved on the concrete protective of the upper end of concrete column 1
On layer, joint cores 3 are formed, U-shaped keyway 21 is left in the end of beams of concrete 2, core beam is provided with the U-shaped keyway 21
The end of beams of concrete 2 is stretched out in 22 and PC rod irons 23, the free end of the PC rod irons 23；Using pvc pipe 4 to PC rod irons in keyway
Do soap-free emulsion polymeization processing；Pier nose bar dowel 5 is respectively equipped with the internal upper part of 2 joint cores of beams of concrete 3 and bottom；In beams of concrete
2 internal upper parts are provided with elongated regular reinforcement 6.
The setting of U-shaped keyway 21, can take into full account that pre- PC rod irons anchor requirement, the force request that beam is shelved temporarily, beam column
The many factors such as composition surface shearing resistance requirement and the bending of PC rod irons facility are comprehensively determined.
Pier nose bar dowel is placed respectively on the top and bottom of prefabricated joint cores, strengthens beam column binding site
Intensity, so as to realize that beam plastic hinge is outwards shifted, strengthens column joints deformation ability, improves Seismic Behavior.
One small core beam is provided with beam end U-lag length range, thereby may be ensured that keyway lower concrete exists
It is unlikely to bulk peeling under seismic loading.
Prefabricated beam-ends, which is set, sets a core beam in certain length U-shaped keyway, groove, while setting shear connector in keyway, carry
The high shearing resistance on beam column composition surface.In addition, the setting of keyway, it is possible to increase the free bend segment length of PC rod irons, it can be more convenient
Ground carries out spatial intersecting bending using the pliability of PC rod irons, different directions beam bottom reinforcing bar and post when thoroughly solution precast beam is in place
The construction difficult problem that muscle is easily collided.
As shown in Fig. 2 the PC rod irons 23 for stretching out the end of beams of concrete 2 are folded upward at.
PC rod irons stretch into upward fully anchoring, continuous, node concrete the entirety of back reinforcing bar of bending up in node district and poured
Build, realize strong ties node, the shock resistance of beam, post can be given full play to, improve integrally-built shock resistance
PC rod irons end decides whether to bend up upwards as needed, and beam-ends PC rod irons can be using its flexibility from U-lag
Initial point starts to make flexibly bending, can smoothly avoid post muscle in node installation process and opposite beam muscle is anchored into node district, facilitate
The prefabricated and field node of beam is installed.
Prefabricated pre-tensioned method prestressed concrete beam 1 is in hoisting process, by beam bottom PC rod irons 23 in keyway inner bending,
Avoid colliding with prefabricated post vertical reinforcement, facilitate lifting operation.One section use pvc pipe of the PC rod irons in keyway is done at soap-free emulsion polymeization
Reason, so can artificially be such that plastic hinge occurs in this place.It is prefabricated it is beam prefabricated in, a prior pre-buried shorter bearing rod,
Facilitate the colligation of keyway inner core beam steel.
The length of core beam 22 is slightly less than the length of U-shaped keyway 21.
As shown in figure 3, pier nose bar dowel 4 is placed at position above and below node both sides U-shaped groove 21 and joint cores, help
In the intensity for further strengthening the prefabricated beam column faying face of node district, beam-ends plastic hinge can be made to appear in predetermined position.
The beams of concrete 2 is prefabricated using pre-tensioning system.
Using the Prefabricated pre-tensioned method prestressed concrete beam of configuration PC rod irons, it is possible to decrease beam steel using amount reduces beam section,
Reach and save material, reduce the purpose of cost；Details are as follows for node concrete construction method：Concrete column is layered prefabricated, pre-tensioning system
Prestressed concrete beam is prefabricated by span segmentation, and precast beam is shelved on prefabricated post concrete cover during installation, and beam is inner
The PC rod irons that portion is stretched out stretch into anchoring in post, rear to place node district bottom and top pier nose reinforcing bar, insert back regular reinforcement, section
Point cast-in-place concrete.Form fabricated assembly overall connecting node.
The present invention makes full use of the flexibility of prestressing force PC rod irons and the setting of beam-ends certain length keyway, is hung in precast beam
During dress, it can all avoid post muscle according to live different directions beam bottom PC rod irons positions, free folding and anchor into node district,
Thoroughly overcome the construction difficult problem that the stress cage bar of beam bottom stretching is easily collided with post muscle.
Claims (4)
1. a kind of prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part, including precast concrete column (1)
With precast concrete beam (2), one end of the beams of concrete (2) is shelved on the concrete cover of concrete column (1) upper end,
Formed joint cores (3), it is characterised in that：
U-shaped keyway (21) is left in beams of concrete (2) end, and core beam (22) and PC steel are provided with the U-shaped keyway (21)
Beams of concrete (2) end is stretched out in rod (23), the free end of the PC rod irons (23), using pvc pipe (4) to PC rod irons in keyway
Do soap-free emulsion polymeization processing；
Pier nose bar dowel (5) is respectively equipped with beams of concrete (2) joint cores (3) internal upper part and bottom；
Elongated regular reinforcement (6) is provided with beams of concrete (2) internal upper part.
2. beam-column connection according to claim 1, it is characterised in that：
The PC rod irons (23) for stretching out beams of concrete (2) end are folded upward at.
3. beam-column connection according to claim 1, it is characterised in that：
Core beam (22) length is slightly less than U-shaped keyway (21) length.
4. beam-column connection according to claim 1, it is characterised in that：
The beams of concrete (2) is prefabricated using pre-tensioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301880.XA CN106948481B (en) | 2017-05-02 | 2017-05-02 | Prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301880.XA CN106948481B (en) | 2017-05-02 | 2017-05-02 | Prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106948481A true CN106948481A (en) | 2017-07-14 |
| CN106948481B CN106948481B (en) | 2019-05-07 |
Family
ID=59478010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710301880.XA Active CN106948481B (en) | 2017-05-02 | 2017-05-02 | Prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106948481B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905402A (en) * | 2017-11-30 | 2018-04-13 | 扬州大学 | A kind of assembled RPC/ Combined concretes frame energy-dissipating and shock-absorbing node |
| CN108316122A (en) * | 2018-03-28 | 2018-07-24 | 北京市市政工程设计研究总院有限公司 | A kind of the bridge floor continuous structure and construction method of freely-supported I-shaped concrete combination beam |
| CN109930690A (en) * | 2019-04-15 | 2019-06-25 | 华东建筑设计研究院有限公司 | A kind of reinforced concrete structure, beam, column and building |
| CN111648468A (en) * | 2020-06-04 | 2020-09-11 | 广州瀚阳工程咨询有限公司 | Ultrahigh space utilization rate fabricated building system and efficient construction method thereof |
| CN112081242A (en) * | 2020-09-30 | 2020-12-15 | 东南大学 | Assembled integral beam-column joint provided with shape memory alloy reinforcement and construction method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012207414A (en) * | 2011-03-29 | 2012-10-25 | Takenaka Komuten Co Ltd | Joint structure for reinforced concrete beam |
| CN103924731A (en) * | 2014-04-11 | 2014-07-16 | 北京工业大学 | Reinforced concrete beam with non-adhesive ends and preparation method thereof |
| CN105256891A (en) * | 2015-09-17 | 2016-01-20 | 东南大学 | Prefabricated concrete frame structure with high-strength bottom bars |
| CN105735469A (en) * | 2016-02-23 | 2016-07-06 | 同济大学 | Partially-bonded precast prestressed concrete frame structure |
-
2017
- 2017-05-02 CN CN201710301880.XA patent/CN106948481B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012207414A (en) * | 2011-03-29 | 2012-10-25 | Takenaka Komuten Co Ltd | Joint structure for reinforced concrete beam |
| CN103924731A (en) * | 2014-04-11 | 2014-07-16 | 北京工业大学 | Reinforced concrete beam with non-adhesive ends and preparation method thereof |
| CN105256891A (en) * | 2015-09-17 | 2016-01-20 | 东南大学 | Prefabricated concrete frame structure with high-strength bottom bars |
| CN105735469A (en) * | 2016-02-23 | 2016-07-06 | 同济大学 | Partially-bonded precast prestressed concrete frame structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905402A (en) * | 2017-11-30 | 2018-04-13 | 扬州大学 | A kind of assembled RPC/ Combined concretes frame energy-dissipating and shock-absorbing node |
| CN108316122A (en) * | 2018-03-28 | 2018-07-24 | 北京市市政工程设计研究总院有限公司 | A kind of the bridge floor continuous structure and construction method of freely-supported I-shaped concrete combination beam |
| CN108316122B (en) * | 2018-03-28 | 2024-04-12 | 北京市市政工程设计研究总院有限公司 | Bridge deck continuous structure of simply-supported I-shaped concrete composite beam and construction method |
| CN109930690A (en) * | 2019-04-15 | 2019-06-25 | 华东建筑设计研究院有限公司 | A kind of reinforced concrete structure, beam, column and building |
| CN111648468A (en) * | 2020-06-04 | 2020-09-11 | 广州瀚阳工程咨询有限公司 | Ultrahigh space utilization rate fabricated building system and efficient construction method thereof |
| CN111648468B (en) * | 2020-06-04 | 2022-01-28 | 瀚阳国际工程咨询有限公司 | Ultrahigh space utilization rate fabricated building system and efficient construction method thereof |
| CN112081242A (en) * | 2020-09-30 | 2020-12-15 | 东南大学 | Assembled integral beam-column joint provided with shape memory alloy reinforcement and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106948481B (en) | 2019-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106948481B (en) | Prefabrication and assembly construction concrete frame beam-column connection based on the high strengthening tendons in part | |
| CN104153287B (en) | There is the section assembling concrete frame bridge pier system and method for self-resetting capability | |
| CN104328847B (en) | A kind of construction method of interior bearing diagonal assembly concrete shear wall prefabricated components | |
| CN108487461A (en) | Precast prestressed concrete frame bean column node with additional bar and sleeve | |
| CN107246085A (en) | Built-in soap-free emulsion polymeization steel plate concealed bracings prestressing force automatic reset concrete shear wall | |
| CN208668683U (en) | The built-in built-in steel plate combined shear wall of presstressed reinforcing steel steel pipe concrete frame | |
| CN108678225A (en) | The built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame and the practice | |
| CN103195172A (en) | Beam-column joint structure of prefabricated concrete frame | |
| CN107245953B (en) | A kind of crossed construction method of multilayer bridge structure | |
| CN107130715A (en) | Teeth groove is poured after a kind of to be linked and packed the construction method of formula building roof system | |
| CN107338864A (en) | Prefabricated reinforced concrete frame structure node | |
| CN106958319A (en) | Precast concrete post component and connected node | |
| CN109853362A (en) | A kind of interim prestress anchoraging prefabricated bent cap of segmentation and interim method for applying prestressing force | |
| CN109322388A (en) | A kind of assembled beam-column node structure positioned at plastic zone energy dissipation | |
| CN108678226A (en) | Prestressed steel pipe concrete frame profiled sheet shear wall and the practice built in one kind | |
| CN208668684U (en) | Prestressed steel pipe concrete frame double steel plate shear wall built in one kind | |
| CN106930436A (en) | A kind of reinforced concrete shear wall of built-in prestress steel diagonal brace | |
| CN203200925U (en) | Prefabricated concrete framework beam column connected node structure | |
| CN207582460U (en) | A kind of super-large diameter splices hollow pile | |
| CN102852279B (en) | A kind of prestressed reinforced concrete composite beam of convex-concave superposed surfaces | |
| CN108678223A (en) | A kind of recoverable steel pipe concrete frame compound shear wall and the practice | |
| JP6205473B1 (en) | Column-to-beam joint and its design method | |
| CN103541438B (en) | A kind of Reinforced Concrete Circular Cylinder node area gauze wire cloth parcel and additional thin-wall circular steel pipe reinforcement structure and preparation method | |
| CN103061452B (en) | Anti-seismic prestressed precast beam | |
| CN209179178U (en) | A kind of assembled beam-column node structure positioned at plastic zone energy dissipation |
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 |