CN107268784A - A kind of power consumption connection component applied to assembly concrete frame joint core space - Google Patents
A kind of power consumption connection component applied to assembly concrete frame joint core space Download PDFInfo
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- CN107268784A CN107268784A CN201710561269.0A CN201710561269A CN107268784A CN 107268784 A CN107268784 A CN 107268784A CN 201710561269 A CN201710561269 A CN 201710561269A CN 107268784 A CN107268784 A CN 107268784A
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- 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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The present invention proposes a kind of power consumption connection component applied to assembly concrete frame joint core space, it is characterised in that：The power consumption connection component of described assembly concrete frame joint core space includes the Combined adjustable splice (3) of longitudinal reinforcement in anchor block (1), the power consumption rod (2) being connected with anchor block (1), connection power consumption rod (2) and beam；Described anchor block (1) and power consumption rod (2) is embedded in the joint cores of prefabricated frame trestle.The application of the power consumption connection component meets building industrialization demand for development, has the advantages that to can be mass, quick assembling construction, using the ductility of joint of the power consumption connection component is good, energy dissipation capacity is strong.
Description
Technical field
The invention belongs to building engineering field, it is related to assembly concrete frame structure, is specially that one kind is applied to assembling
The power consumption connection component of formula concrete frame node core space.
Background technology
In recent decades, the characteristics of prefabricated concrete structure is with its industrialized production and fabricated construction, increasingly
To the favor of engineer, it is widely used and has obtained swift and violent development.Ground along with design based on performance theory
That studies carefully gos deep into, the requirement more and more higher that people are controlled structural damage, and research and the application of high ductility dissipative cell are received more
Carry out more concerns, in the U.S., New Zealand, Japan and other countries and area, ductility dissipative cell is added in fabricated construction
Way has been reached its maturity, and building trade future hair is had become using mounting technology and energy-dissipating and shock-absorbing technology in structural system
One of trend of exhibition.
The anti-seismic performance of bean column node connection is the key factor that assembly concrete Seismic Behavior of Frame Structure is played.Frame
The node of frame structure is the larger position of internal force under geological process, plastic hinge is easily produced, while being also assembly concrete frame
In place of the prefabricated components of frame structure cross, this causes performance of connection to be particularly important in prefabricated concrete structure.Frame
Frame structure generally requires the plastic deformation dissipation seismic energy using beam-ends, therefore connection should be beneficial to beam-ends at node in water repeatedly
Flat effect is lower to play good Hysteresis Behavior, so as to mitigate seismic response.Mixed in addition, the connection mounting process of node is assembled
The key element that solidifying soil frame structure is installed.In assembly concrete frame structure, prefabricated components make in factory, can pass through
Streamline construction improves production efficiency；And the connection at scene is installed and still needs to artificial operation to complete.Whether the technique of node connection
It is easy to operation, if with efficiently installation procedure, crucial effect will be produced to the efficiency of construction of industrialized building.
Induction surrender mechanism is to ensure that assembly concrete frame structure bean column node connects the key element of anti-seismic performance.
The hysteretic energy of reinforced concrete member mostlys come from the surrender of longitudinal reinforcement.Under cast-in-place construction technique, node, connection and structure
Part integrated molding, the reinforcing bar and concrete of near nodal are all continuous so that component has related load to node
Can, and because joints are complicated, to realize that the weak component of strong node need to take stricter detailing requiments.Assembly concrete frame
In frame structure, the connection at node lags behind completing for component so that engineer has ready conditions takes special in junction
The power consumption of construction and high-quality is connected, so as to give full play to the anti-seismic performance of this structure, it is ensured that its shock resistance.
The ductility that Dywidag companies of the U.S. use connects (Dywidag Ductile Connector, DDC) by metal shaft
The hysteretic energy principle of heart primary structure member is applied in joint cores.The ductility connecting structure is simple, and fabrication and installation are convenient, consumption
It can work well, cost relative moderate has deployed application in developed countries and regions such as the U.S. at present, particularly in California
Using more in the large-scale prefabricated concrete structure in earthquake region.Experiment shows that the introducing of this kind of ductility connection, which is obviously improved, to finish
The anti-seismic performance of structure, with superior energy-dissipating property.DDC is transmitted in power consumption rod and beam using conversion block between longitudinal reinforcement
Axial force, conversion block position corresponding with power consumption rod is provided with through hole, and position corresponding with longitudinal reinforcement in beam is provided with band internal thread
Counter sink, the outer end of power consumption rod is with female sleeve, first by longitudinal reinforcement using screw thread and the countersunk head of conversion block
Hole is fixed, and is then screwed into using the through hole of bolt through conversion block in the internal thread of the end sleeve of power consumption rod.
Flexing when preventing plastic hinge reinforcing bar compression nearby is the premise for playing plastic hinge energy dissipation behavior.Cast in place reinforced bar coagulation
In native frame joint, when larger plastic rotational angle occurs for plastic hinge region at node, periphery when being surrendered due to longitudinal compressive reinforcement
Stirrup and concrete can not constrain its flexing, outside concrete can be caused to burst apart, stirrup breaks and longitudinal compressive reinforcement unstability etc.
Phenomenon is produced, and bearing capacity moment reduction, plastic hinge loses turning power.This explanation, prevents the longitudinal reinforcement of power consumption by lateral deflection
Flexing after clothes is the key for playing plastic hinge energy dissipation behavior.Plastic zone reinforcing bar is placed in Column border node core space by DDC, is made
The surrounding of power consumption rod is in the constraint of concrete, it is therefore prevented that the unstability of plastic zone reinforcing bar.But, DDC and longitudinal direction in beam
The connection of reinforcing bar is complex.
Meanwhile, the connection design of assembly concrete frame structure should be able to coordinate the mistake in structure manufacture and installation process
Difference.Then the component of fabricated construction is assembled at the scene in factory's pre-production.Taken in manufacturing process various
Measure ensures that the site error of each part (such as reinforcing bar) in the dimensional accuracy of component, the scale error and component of component is still not
It is evitable；On the other hand, in order to ensure being smoothed out for assembling, a certain degree of gap, ability must be left between component
The collision in assembling process is avoided, and the presence in these gaps also make it that presence can not be kept away between component and component in installation process
The error in length exempted from.The connection design of assembly concrete frame structure, it has to be possible to easily coordinate caused by above-mentioned reason
Error, can ensure the reliable of power transmission, it is ensured that the convenience of construction and installation.DDC connections are difficult to eliminate the longitudinal direction between component
Gap, is easily caused the pinch of hysteresis loop.
Jiangsu Jintong Prefabricated Construction Development Co., Ltd. proposes a kind of new adjustable steel bar branch sleeve, is used for
In fabricated construction among the interconnection construction of two sections of reinforcing bars, what it may be implemented in same axis two sections of reinforcing bars can without sliding
By connection, the bar connecting of all kinds of occasion different-diameters is applicable, is had wide range of applications；Its feature is that muff joint is short, is not influenceed
Stirrup installation；Profile is small not to influence concrete cover；Length that can be to reinforcing bar and the appropriate adjustment of eccentric progress；Component is installed just
It can be finely adjusted to adapt to prefabricated components installation accuracy by Swiveling Rebar joint during position；Quality of connection is reliable and stable；The joint
Sliding very close to each other when reinforcing bar compression and tension can be achieved in connection, and stress is reliable, disclosure satisfy that the requirement of one-level joint.
For above-mentioned background, the present invention proposes that a kind of power consumption applied to assembly concrete frame joint core space is connected
Component, connects the longitudinal reinforcement of prefabricated beam end and is anchored in post core space, for bearing and transmitting under geological process by framework
The axle power repeatedly of upside and/or lower edge caused by beam-ends moment of flexure；By bearing the power consumption rod of xial feed, in joint cores
The anchor block in portion and the Combined adjustable splice that be connected with longitudinal reinforcement in beam of rod that will consume energy are constituted, consume energy rod in compression by
To the constraint of periphery node district air-free concrete, will not also occur the flexing of amplitude when being pressurized and surrender even if power consumption rod.Small shake
When, the core power consumption rod being arranged in joint cores keeps elasticity, and bending rigidity is provided for beam-to-column joint；Middle shake or big shake
When, power consumption rod occurs surrender tension or in compression and utilizes hysteretic characteristic dissipation seismic energy, reduces the dynamic response of structure.This hair
Bright the characteristics of is the ductility energy-dissipating property that power consumption rod can play stably, and improves the shock resistance of structure.Compared with DDC, this hair
It is bright to have the advantages that connection is succinct, be easy to regulation construction error, easy construction.
The content of the invention
Technical problem：Prefabricated assembled concrete frame construction is to be adapted to the important feature form that building industrialization is built.
Concrete frame joint is both the joint of component, is field erected key operation position, be again occur under component earthquake it is larger
The region of internal force, easily produces plastic deformation, dissipation seismic energy.Therefore, how to be used in node district and facilitate connection construction simultaneously
The connected mode of alignment error can be coordinated, how position and the guarantee for surrendering abduction mechanism control damage and power consumption generation is utilized
How the energy dissipation capacity of structure, avoid the energy-consuming parts being plastically deformed from flexing occur in compression, is to ensure that assembled is mixed
Solidifying soil Seismic Performance of Concrete Frame and can application property key technical problem.
Technical scheme：In order to solve the above technical problems, being applied to assembly concrete framework section the invention provides one kind
The power consumption connection component of point core space,
The power consumption connection component of described assembly concrete frame joint core space includes anchor block, is connected with anchor block
Power consumption rod, connection power consumption rod and beam in longitudinal reinforcement Combined adjustable splice；Described anchor block and power consumption rod is pre-buried
In the joint cores of prefabricated frame trestle.
The power consumption connection component is made using metal materials such as steel.Pass through welding between the power consumption rod and anchor block
It is firm by Combined adjustable splice between longitudinal reinforcement in the power consumption rod and beam or the mode such as threaded connection is firmly connected
Connection, constitutes a continuous power transmission component.
Described power consumption rod is in turn divided into inner side linkage section, inner transition section, power consumption section, outside transition along its length
Section and outside linkage section；The sectional area of the inner side linkage section and outside linkage section is more than the sectional area of the power consumption section；Power consumption
Gentle transition between section and inner side linkage section and outside linkage section, forms inner transition section and outside changeover portion respectively；Outside connects
The end segments for connecing section are provided with external screw thread.
It is preferred that, the power consumption section surface of described power consumption rod has non-cohesive material parcel.
Described Combined adjustable splice includes outer sleeve, the first inner sleeve inside outer sleeve and the second inner sleeve
Cylinder and the second inner sleeve offset and cap；
Described outer sleeve one end end is set to the isometrical contracting of the nominal diameter of outside linkage section of the diameter more than power consumption rod
Mouthful, another end section inwall is provided with internal thread；The first inner sleeve external diameter is more than the isometrical reentrant diameter of outer sleeve but is less than
Outer sleeve internal diameter, first inner sleeve one end offers center counter sink, and the inwall of the center counter sink is machined with internal thread, the
The one inner sleeve other end is provided with guide head, guide head or may be configured as hemispherical or conical pattern；Second inner sleeve
Centre bore be through hole, through-hole diameter is slightly larger than the maximum diameter of the first inner sleeve guide head, and the through-hole wall is provided with interior spiral shell
There is external screw thread on line, one end barrel of the second inner sleeve；Described and hatband has central through hole, and the inwall of the central through hole is set
There is internal thread；
The outside linkage section end of the power consumption rod connected passes through isometrical necking, its external screw thread and the first inner sleeve counter sink
Screw-internal thread fit spin；The internal thread of outer sleeve coordinates with the external screw thread on the second inner sleeve barrel to spin；Connected
Beam in longitudinal reinforcement end segments be provided with external screw thread, the screw-internal thread fit of the external screw thread and the second inner sleeve inwall spins；And
The external screw thread of longitudinal reinforcement end coordinates and spun in the internal thread and beam of cap, and cap is tightened in the second inner sleeve end.
The described power consumption connection component applied to assembly concrete frame joint core space, its anchor block and power consumption rod
It is embedded in after connection in Column border node core space, completing longitudinal reinforcement in the beam after being connected with beam column aligns, and the outside of power consumption rod connects
The end for connecing section does not protrude the surface of post concrete；Consume energy rod outside linkage section near post concrete leave post side breach with
Carry out also needing to reserve sufficient length near the end of longitudinal reinforcement in the connection construction between longitudinal reinforcement, beam in power consumption rod and beam
Beam-ends tongue and groove to ensure the operating space of Combined adjustable splice, institute is filled using rear pouring concrete after connection installation
State breach and tongue and groove.
Beneficial effect：1) structural damage is concentrated, and energy-dissipating property is good.In the present invention, by reasonably designing, consumption can be made
Surrender bearing capacity of the power consumption section of energy rod under axle power effect is less than the surrender bearing capacity of longitudinal reinforcement in its tie-beam
And its anchoring bearing capacity, the surrender bearing capacity and two of inner side linkage section, outside linkage section again smaller than core power consumption rod
Connection bearing capacity in end and anchor block, beam between longitudinal reinforcement, so that surrender is occurred over just in the power consumption section of power consumption rod.
Due to the power consumption rod for being mounted with easily to surrender in joint cores so that the rod that consumed energy under geological process can absorb and to consume earthquake defeated
Enter the energy of structure, in the case where excessive deformation or damage do not occur in itself for beam, the post for ensureing main supporting member, reduce
Seismic response.
2) surrender abduction mechanism can be realized effectively.Power consumption rod is arranged on joint cores by the present invention, rationally under design,
The low bearing capacity of the more other building blocks of bearing capacity is surrendered in the tension and compression of power consumption rod, and weakening is taken by the power consumption section in power consumption rod
The mode in section, can induce surrender designated area produce, so under geological process, power consumption rod can prior to framework other
Component and part occur to surrender and enter power consumption, form a kind of surrender abduction mechanism, thereby may be ensured that under violent earthquake, surrender
It is only likely to occur in power consumption rod, and the only power consumption section of power consumption rod is there may be plastic deformation, and remainder can be protected
Card is lossless or damages insignificant state.Power consumption section has certain length, it is preferable that there is adhesive-less layer on the surface of power consumption section,
Therefore when plastic deformation is produced, have in power consumption segment limit in close plastic strain, the lower power consumption section of plastic deformation
Mean strain it is relatively low, be conducive to play metal material low-cycle fatigue ability.
3) it is possible to prevente effectively from the flexing unstability that power consumption rod may occur after axial compression surrender.Power consumption rod is embedded in section
Point area in the range of, up and down, left and right all constrained by air-free concrete around, the rod that no matter consumes energy exists potential to which direction
Flexing tendency, there are enough concrete to constrain its lateral deformation.Therefore power consumption rod will not be produced when being pressurized and significantly bent
Song deformation, so as to ensure total cross-section surrender of the occurrence and distribution in power consumption section as when power consumption rod can be with tension when being pressurized.
Because surrender is only limitted to occur in the power consumption section of power consumption rod, the longitudinal reinforcement of beam keeps elastic stage, therefore will not occur commonly
The same Bar Buckling of armored concrete plastic hinge, cover concrete collapse the damage -form, are conducive in plastic hinge corner
The bearing capacity in section is kept not reduce when larger.
4) convenience is installed and being capable of reliable delivery pulling force and pressure.Beam, post and its phase of assembly concrete frame structure
Component is closed, makes, is installed successively to building-site respectively in factory.If the size of component is more than or is exactly equal to component installation
The size in space, will cause the installation difficulty of component.Therefore, the installation of component for convenience, the size of component should be slightly less than structure
The size of part installing space, so results between installation rear part and there is gap.Screw shell connection can eliminate structure
Gap between part, but the minim gap of power consumption rod/exist between end reinforced screw thread and internal thread of sleeve may still result in
Sliding during longitudinal power transmission.Rigidity is reduced when this sliding causes connection stress, the node to bearing axial tension or pressure
The power consumption connection of core space is very unfavorable.The present invention will power consumption rod and anchor in beam using the branch sleeve of Combined adjustable splice
Gu reinforcing bar is connected as a single entity, it is easy to the gap that exists between regulation power consumption rod and reinforcing bar, and by sleeve in itself in installation process
The telescopic nature shown, organic one is linked as by beam column；Combined adjustable splice is in installation and tightens each portion
Divide after screw thread, the second inner sleeve and the abutting of the first inner sleeve guide head side end, the isometrical necking step of outer sleeve and the first inner sleeve
Cylinder counter sink side end is pushed against, and makes the thread of linkage section external screw thread and the first inner sleeve internal thread on the outside of power consumption rod in side phase
Support, the thread of outer sleeve internal thread offsets with the externally threaded thread of the second inner sleeve in opposite side；Simultaneously and in crown tight second
The end of sleeve, and the thread of longitudinal reinforcement end thread in the thread and beam of the second inner sleeve internal thread is offseted in side,
And the thread of longitudinal reinforcement end thread offsets in opposite side in the thread and beam of cap internal thread so that power consumption rod pulling force and
Pressure is transmitted by the compression face closely offseted between part, is connected in transmission pulling force and press process and is not produced sliding,
Eliminate influence of the thread pitch to power transmission, it is ensured that the validity and reliability of node force transfer system.
5) possesses stronger adaptability the location tolerance component.Employ Combined adjustable splice and carry out stress steel
The connection of muscle and power consumption rod, muff joint is short not to influence stirrup installation, and profile is small not to influence concrete cover；Reinforcing bar connects simultaneously
The tunable characteristic of head can carry out appropriate regulation to the length and bias of reinforcing bar, and prefabricated post, beam can be by rotating steel when installing in place
Muscle joint is finely adjusted raising component installation accuracy, will not produce material and become and stress, it is ensured that quality of connection is reliable and stable.
6) it is practical, do not affect the appearance.This power consumption connection component is arranged in joint cores, power consumption rod and beam column
Power transmission directly, and pouring concrete is integrally formed structure behind the remainder to reservation operations space after installing, beam
Outward appearance it is consistent with cast-in-place Vierendeel girder, meet traditional aesthetic conceptions.
Brief description of the drawings
Fig. 1 is a kind of power consumption connection component overall schematic applied to assembly concrete frame joint core space；
Fig. 2 is power consumption rod signal in a kind of power consumption connection component applied to assembly concrete frame joint core space
Figure；
Fig. 3 is Combined adjustable reinforcing bar in a kind of power consumption connection component applied to assembly concrete frame joint core space
Joint schematic diagram；
Fig. 4 is Combined adjustable reinforcing bar in a kind of power consumption connection component applied to assembly concrete frame joint core space
Tap pressure transport mechanism schematic diagram；
Fig. 5 is Combined adjustable reinforcing bar in a kind of power consumption connection component applied to assembly concrete frame joint core space
Joint pulling force transport mechanism schematic diagram；
Have in figure：Anchor block 1, consume energy rod 2, inner side linkage section 21, inner transition section 22, and consume energy section 23, outside changeover portion
24, outside linkage section 25；Outside linkage section end external screw thread 251；Combined adjustable splice 3, outer sleeve 31, isometrical necking
311, outer sleeve internal thread 312, the first inner sleeve 32, the first inner sleeve internal thread 321, guide head 322, the second inner sleeve 33,
Second inner sleeve internal thread 331, the second inner sleeve external screw thread 332, and cap 34, and cap internal thread 341；Longitudinal reinforcement 4 in beam, beam
Interior longitudinal reinforcement end external screw thread 41；Non-cohesive material 5, post side breach 6, beam-ends tongue and groove 7, rear pouring concrete 8.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
A kind of power consumption connection component applied to assembly concrete frame joint core space that the present invention is provided,
The power consumption connection component of described assembly concrete frame joint core space includes anchor block 1, connected with anchor block 1
The Combined adjustable splice 3 of longitudinal reinforcement in power consumption rod 2, connection power consumption rod 2 and the beam connect；Described anchor block 1 and power consumption
Rod 2 is embedded in the joint cores of prefabricated frame trestle.
The power consumption connection component is made using metal materials such as steel.Pass through weldering between the power consumption rod 2 and anchor block 1
The mode such as connect or be threadedly coupled firmly to connect, Combined adjustable splice is passed through between longitudinal reinforcement 4 in the power consumption rod 2 and beam
3 firmly connections, constitute a continuous power transmission component.
Described power consumption rod 2 be in turn divided into along its length inner side linkage section 21, inner transition section 22, power consumption section 23,
Outside changeover portion 24 and outside linkage section 25；The sectional area of the inner side linkage section 21 and outside linkage section 25 is more than the power consumption
The sectional area of section 23；Gentle transition between the section 23 that consumes energy and inner side linkage section 21 and outside linkage section 25, forms inner side mistake respectively
Cross section 22 and outside changeover portion 24；The end segments of outside linkage section 25 are provided with external screw thread 251.
23 surfaces of power consumption section of described power consumption rod 2 have non-cohesive material 5 to wrap up.
Described Combined adjustable splice 3 includes outer sleeve 31, the first inner sleeve 32 inside outer sleeve and the
Two inner sleeves 33 and the second inner sleeve 33 offset and cap 34；
One end end of outer sleeve 31 be set to diameter be more than power consumption rod 2 outside linkage section 25 nominal diameter etc.
Footpath necking 311, another end section inwall is provided with internal thread 312；The external diameter of first inner sleeve 32 is more than the isometrical of outer sleeve 31
The diameter of necking 311 but less than the internal diameter of outer sleeve 31, the one end of the first inner sleeve 32 offers center counter sink, the center counter sink
Inwall be machined with internal thread 321, the other end of the first inner sleeve 32 is provided with guide head 322, guide head 322 or may be configured as half
Spherical or conical pattern；The centre bore of second inner sleeve 33 is through hole, and through-hole diameter is slightly larger than the first inner sleeve 32
The maximum diameter of guide head 322, the through-hole wall, which is provided with internal thread 331, one end barrel of the second inner sleeve, external screw thread
332；Described and cap 34 carries central through hole, and the inwall of the central through hole is provided with internal thread 341；
The end of outside linkage section 25 of the power consumption rod 2 connected is passed through in isometrical necking 311, its external screw thread 251 and first
The internal thread 321 of the counter sink of sleeve 32, which coordinates, to spin；The internal thread 312 of outer sleeve 31 is with being located on the barrel of the second inner sleeve 33
External screw thread 332, which coordinates, to spin；The end segments of longitudinal reinforcement 4 are provided with external screw thread 41, the external screw thread 41 and second in the beam connected
The internal thread 331 of the inwall of inner sleeve 33, which coordinates, to spin；And the internal thread 341 of cap 34 and the external screw thread of the end of longitudinal reinforcement 4 in beam
41 cooperations spin, and cap 34 is tightened in the end of the second inner sleeve 33.
The described power consumption connection component applied to assembly concrete frame joint core space, its anchor block 1 and power consumption
Rod 2 is embedded in Column border node core space after connecting, and completing longitudinal reinforcement 4 in the beam after being connected with beam column aligns, outside power consumption rod 2
The end of side linkage section 25 does not protrude the surface of post concrete；Post concrete near the outside linkage section 25 of power consumption rod 2 leaves
Post side breach 6 is with the connection construction between longitudinal reinforcement 4 in consume energy rod 2 and beam, in beam near the end of longitudinal reinforcement also
The beam-ends tongue and groove 7 of sufficient length need to be reserved to ensure the operating space of Combined adjustable splice 3, used after connection installation
Pouring concrete 8 fills the breach 6 and tongue and groove 7 afterwards.
Below by taking the embodiment of the present invention as an example, illustrate the embodiment of the present invention.
A kind of power consumption connection component applied to assembly concrete frame joint core space proposed by the invention, will pacify
Correspond in assembly concrete concrete frame joint core space on the upside of beam and/or at the height of downside longitudinal reinforcement.
In this specification, the explanation exemplified by being installed on and correspond to the energy consuming components on the upside of beam at the height of reinforcing bar in joint cores.Adopt
During with this, the left side of beam is post, and the region of deck-molding scope inner pillar is Column border node region.
1) prefabricated components
In the element precast stage, by the inner side linkage section 21 of anchor block 1 and the rod 2 that consumes energy by welding or be threadedly coupled etc. just
Formula is firmly connected, 23 surfaces of the power consumption section parcel non-cohesive material 5 for the rod 2 that consumes energy, and anchor block 1 and power consumption rod 2 are embedded in into section
Completed in point core space with being connected at the position that the axis of longitudinal reinforcement 4 aligns in the back rest, the end of its outside linkage section 25 is not dashed forward
Go out post concrete surface, and reserve in the vicinity of outside linkage section 25 post side breach 6.Meanwhile, longitudinal reinforcement is high in beam-ends beam
Degree is nearby reserved the end of longitudinal reinforcement 4 in beam-ends tongue and groove 7, beam and extended in beam-ends breach 7, and to longitudinal reinforcement section of stretching out in beam
Surface structure screw thread 41.
Complete it is above-mentioned it is pre-buried after, respectively casting beams, post concrete, make prefabricated components.Outer sleeve 31 is inserted in power consumption rod 2
Outside linkage section 25, by and the inner sleeve 33 of cap 34 and second screws in the end thread 41 of longitudinal reinforcement 4 in beam successively.
2) beam column is installed
During in-site installation, first prefabricated beam column is lifted in place, adjustment depth of beam and horizontal level make power consumption rod 2 and beam
The cross-section centroid of interior longitudinal reinforcement 4 is mutually aligned.Meanwhile, it is screwed into the first inner sleeve 32 on the outside linkage section 25 of power consumption rod 2
And tighten.
3) power consumption rod and beam in longitudinal reinforcement connection
The outside linkage section 25 for the rod that consumes energy is connected with longitudinal reinforcement thread segment 41 in beam by Combined adjustable splice 3
And be tightened by the screw thread of its assembly surface, detailed process includes：Second inner sleeve 33 is threaded towards the first inner sleeve 32 simultaneously
Hold out against, when the axis of consume energy rod 2 and longitudinal reinforcement 4 in beam has slight error, due to the inner sleeve 33 of guide head 322 and second
Between guide effect, longitudinal reinforcement adapts to error by small bending is produced in beam；Outer sleeve 31 is pulled out, its outer sleeve
Internal thread 312 is screwed into the external screw thread 332 of the second inner sleeve, it is ensured that the isometrical necking step of outer sleeve 31 blocks the first inner sleeve 32
End and tighten；To simultaneously the second inner sleeve of rotation direction 33 of cap 34 and tighten.Above-mentioned connection can ensure longitudinal reinforcement 4 and consumption in beam
Connection gapless between energy rod 2.
4) space is poured after filling
The remaining space of beam-ends tongue and groove 7 and post side breach 6 is tamped with rear pouring concrete 8.
Under geological process, power consumption rod 2 occurs to surrender and utilize hysteretic characteristic dissipation seismic energy prior to other components and part
Amount.The power consumption connection component is used as the connection of the prefabricated beam column of assembly concrete frame structure, can induce structure and is shaken and big middle
The lower Plastic Damage of shake is concentrated in power consumption rod, and beam column component is avoided while improving structure ductility, improving structural seismic performance
Damage；Power consumption rod is embedded in the concrete of joint cores, the generation of amplitude flexing when can be prevented effectively from compression.Adjustable groups
Close splice connection reliable, the equal gapless slippage in tension and compression, it is ensured that the performance of power consumption rod Hysteresis Behavior, and apply
Work is convenient, can adapt to construction error.The application of the power consumption connection component meets building industrialization demand for development, with can batch
Production, the advantage of quick assembling construction.
Above example be referring to the drawings, to a preferred embodiment of the present invention will be described in detail, those skilled in the art
Member by above-described embodiment carry out various forms on modification or change, but without departing substantially from invention essence in the case of, all fall
In protection scope of the present invention.
Claims (6)
1. a kind of power consumption connection component applied to assembly concrete frame joint core space, it is characterised in that：
The power consumption connection component of described assembly concrete frame joint core space includes anchor block (1), connected with anchor block (1)
The Combined adjustable splice (3) of longitudinal reinforcement in power consumption rod (2), connection power consumption rod (2) and the beam connect；Described anchor block
(1) it is embedded in power consumption rod (2) in the joint cores of prefabricated frame trestle.
2. the power consumption connection component according to claim 1 applied to assembly concrete frame joint core space, it is special
Levy and be：The power consumption connection component is made using metal materials such as steel, is led between the power consumption rod (2) and anchor block (1)
Cross the mode such as welding or threaded connection firmly to connect, Combined adjustable is passed through between longitudinal reinforcement (4) in the power consumption rod (2) and beam
Splice (3) is firmly connected, and constitutes a continuous power transmission component.
3. the power consumption connection component according to claim 2 applied to assembly concrete frame joint core space, it is special
Levy and be：Described power consumption rod (2) is in turn divided into inner side linkage section (21), inner transition section (22), power consumption along its length
Section (23), outside changeover portion (24) and outside linkage section (25)；Sectional area in the power consumption section (23) is identical；The inner side connects
Connect sectional area of the sectional area more than the power consumption section (23) of section (21) and outside linkage section (25)；Power consumption section (23) connects with inner side
Gentle transition between section (21) and outside linkage section (25) is connect, inner transition section (22) and outside changeover portion (24) is formed respectively；
The end segments of outside linkage section (25) are provided with external screw thread (251).
4. the power consumption connection component according to claim 3 applied to assembly concrete frame joint core space, it is special
Levy and be：There is non-cohesive material (5) parcel on power consumption section (23) surface of described power consumption rod (2).
5. the power consumption connection component applied to assembly concrete frame joint core space according to claim 3,4, its
It is characterised by：Described Combined adjustable splice (3) includes outer sleeve (31), the first inner sleeve inside outer sleeve
(32) and the second inner sleeve (33), with the second inner sleeve (33) offset and cap (34)；
Outer sleeve (31) one end end is set to the nominal diameter of outside linkage section (25) of the diameter more than power consumption rod (2)
Isometrical necking (311), another end section inwall is provided with internal thread (312)；First inner sleeve (32) external diameter is more than outer sleeve
(31) isometrical necking (311) diameter but less than outer sleeve (31) internal diameter, the first inner sleeve (32) one end offers center countersunk head
Hole, the inwall of the center counter sink is machined with internal thread (321), and the first inner sleeve (32) other end is provided with guide head
(322), guide head (322) or hemispherical or conical pattern be may be configured as；The centre bore of second inner sleeve (33) is logical
Hole, through-hole diameter is slightly larger than the maximum diameter of the first inner sleeve (32) guide head (322), and the through-hole wall is provided with internal thread
(331), there is external screw thread (332) on one end barrel of the second inner sleeve；Described and cap (34) carries central through hole, the center
The inwall of through hole is provided with internal thread (341)；
Outside linkage section (25) end of the power consumption rod (2) connected passes through isometrical necking (311), its external screw thread (251) and the
The internal thread (321) of one inner sleeve (32) counter sink, which coordinates, to spin；The internal thread (312) of outer sleeve (31) is with being located at the second inner sleeve
External screw thread (332) on cylinder (33) barrel, which coordinates, to spin；Longitudinal reinforcement (4) end segments are provided with external screw thread in the beam connected
(41), the internal thread (331) of the external screw thread (41) and the second inner sleeve (33) inwall, which coordinates, spins；And the internal thread of cap (34)
(341) coordinate with the external screw thread (41) of longitudinal reinforcement in beam (4) end and spin, and cap (34) is tightened in the second inner sleeve (33) end
End.
6. the power consumption connection component according to claim 5 applied to assembly concrete frame joint core space, it is special
Levy and be：The described power consumption connection component applied to assembly concrete frame joint core space, its anchor block (1) and power consumption
It is embedded in after rod (2) connection in Column border node core space, completing longitudinal reinforcement (4) in the beam after being connected with beam column aligns, and consume energy steel
The end of the outside linkage section (25) of rod (2) does not protrude the surface of post concrete；Near the outside linkage section (25) of power consumption rod (2)
Post concrete post side breach (6) is left to carry out in the connection construction in power consumption rod (2) and beam between longitudinal reinforcement (4), beam
Also need to reserve the beam-ends tongue and groove (7) of sufficient length near the end of longitudinal reinforcement to ensure the behaviour of Combined adjustable splice (3)
Make space, the breach (6) and tongue and groove (7) to be filled using rear pouring concrete (8) after connection installation.
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| CN201710561269.0A CN107268784B (en) | 2017-07-11 | 2017-07-11 | Energy-consumption connecting assembly applied to core area of node of assembled concrete frame |
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| CN107268784B CN107268784B (en) | 2023-01-06 |
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| CN110230369A (en) * | 2019-07-03 | 2019-09-13 | 厦门源昌城建集团有限公司 | A kind of assembles post and its joggle construction method |
| CN110468987A (en) * | 2019-08-08 | 2019-11-19 | 重庆大学 | A kind of novel anti-buckling replaceable connecting node of support-RC frame |
| CN111175111A (en) * | 2020-03-02 | 2020-05-19 | 湘潭大学 | Asphalt concrete contact test piece, manufacturing method thereof and clamp for shear test of asphalt concrete contact test piece |
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| CN107268784B (en) | 2023-01-06 |
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