CN207348218U - The replaceable energy consumption connection component of beam-ends of assembly concrete frame - Google Patents
The replaceable energy consumption connection component of beam-ends of assembly concrete frame Download PDFInfo
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- CN207348218U CN207348218U CN201720845925.5U CN201720845925U CN207348218U CN 207348218 U CN207348218 U CN 207348218U CN 201720845925 U CN201720845925 U CN 201720845925U CN 207348218 U CN207348218 U CN 207348218U
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Abstract
The utility model proposes a kind of replaceable energy consumption connection component of the beam-ends of assembly concrete frame, the replaceable energy consumption connection component of beam-ends of the assembly concrete frame is arranged on the upside of the beam-ends of assembly concrete frame structure beam column connection and/or downside, the connection component includes core energy consumption rod (1), column arranged on core energy consumption rod (1) one end is to reinforcing steel bar connecting sleeve tube (2), the beam of core energy consumption rod (1) other end is arranged in Combined adjustable splice (3) and is laid on constraint system (4) of the core energy consumption rod (1) away from beam by the outside of curved neutral axis.The component can induce structural plasticity damage concentration in core consumes energy rod, and ductility of joint is good, energy dissipation capacity is strong, and possess easy the characteristics of repairing after shake;The application of the energy consumption connection component meets building industrialization demand for development, has the advantages that to can be mass, quick assembling construction.
Description
Technical field
The utility model belongs to building engineering field, is related to assembly concrete frame structure, is specially a kind of assembled
The replaceable energy consumption connection component of beam-ends of concrete frame.
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 with design based on performance theory
That studies carefully gos deep into, and people are recoverable after being shaken to structure to be required higher and higher, and the research of high ductility dissipative cell is received with applying
More and more concerns, in the U.S., New Zealand, Japan and other countries and area, add ductility dissipative cell in fabricated construction
Way reached its maturity, building trade future is had become using mounting technology and energy-dissipating and shock-absorbing technology in structural system
One of trend of development.
The anti-seismic performance of beam-to-column joint is the key factor that assembly concrete Seismic Behavior of Frame Structure plays.Frame knot
The node of structure is the position that internal force is larger under geological process, easily produces plastic hinge, while is also assembly concrete frame knot
In place of the prefabricated components of structure cross, this causes performance of connection to be particularly important in prefabricated concrete structure.Frame knot
Structure generally requires the plastic deformation dissipation seismic energy using beam-ends, therefore connects and should make beneficial to beam-ends at node repeatedly horizontal
Good Hysteresis Behavior is played with lower, so as to mitigate seismic response.
Induction surrender mechanism is to ensure the effective means of assembly concrete frame structure bean column node connection 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 and node have relevant load
Can, and since joints are complicated, to realize that the weak component of strong node need to take stringenter detailing requiments.Assembly concrete frame
In frame structure, the connection at node lags behind completing for component so that engineer have ready conditions taken in junction it is special
Construction and good energy consumption connect, so as to give full play to the anti-seismic performance of this structure.
Prevent that the flexing after the reinforcing bar compression compression surrender of plastic hinge region from being to play the premise of plasticity energy dissipation behavior.Cast in place reinforced bar
It is all when being surrendered due to longitudinal compressive reinforcement when larger plastic rotational angle occurs for plastic hinge region at node in concrete frame node
The stirrup and concrete on side can not constrain its flexing, and causing outside, concrete bursts apart, stirrup breaks and longitudinal compressive reinforcement loses
Phenomena such as steady, produces, and bearing capacity moment reduces, and plastic hinge loses turning power.This explanation, prevent energy consumption longitudinal reinforcement by
Flexing after lateral deflection clothes is to play the key of plastic hinge energy dissipation behavior.
The connection mounting process of node is the key element of assembly concrete frame structure installation.Assembly concrete frame
In frame structure, prefabricated components make in factory, can be constructed by assembly line and improve production efficiency;And the connection installation at scene is still
Manual operation is needed to complete.Whether the technique of node connection is easy to operation, if there is efficiently installation procedure, will be to industrialization
The efficiency of construction of building produces crucial effect.
The connection design of assembly concrete frame structure should be able to coordinate the error in structure manufacture and installation process.Dress
Then component with formula structure is assembled in factory's pre-production at the scene.Even if adopt various measures in the production process
Ensure the dimensional accuracy of component, the site error of each component (such as reinforcing bar) is still to keep away in the scale error and component of component
Exempt from;On the other hand, in order to ensure being smoothed out for assembling, a degree of gap must be left between component, just it is avoided that
Collision in assembling process, and these gaps also make it that there are inevitable length mistake between component and component in installation process
Difference.The connection design of assembly concrete frame structure, it has to be possible to error caused by easily coordinating above-mentioned reason, can
Ensure the reliable of power transmission, it is ensured that the convenience of construction and installation.
Jiangsu Jintong Prefabricated Construction Development Co., Ltd. proposes a kind of adjustable steel bar branch sleeve, for assembling
In formula structure among the interconnection construction of two sections of reinforcing bars, what it may be implemented in same cross-sectional axis two sections of reinforcing bars can without sliding
By connection, the bar connecting of all kinds of occasion different-diameters is applicable in, is had wide range of applications;Its feature is that muff joint is short, is not influenced
Stirrup installation;Shape 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 during position by Swiveling Rebar connector to adapt to prefabricated components installation accuracy;Quality of connection is reliable and stable;The connector
Connection can be achieved reinforcing bar and be pressurized and sliding very close to each other during tension, and stress is reliable, disclosure satisfy that the requirement of level-one connector.
Damaged member easily replaces the effective ways for being to ensure that structure possesses recoverability after shake.Currently, structural behaviour is easily repaiied
It is the latest requirement of engineering structure antidetonation again.During earthquake, the plasticity hysteresis dissipation seismic energy of metal material (such as reinforcing bar), and mould
Property development and accumulation can progressively aggravate component damage.Can possess that bear can in follow-up service phase in order to ensure structure after shake
The ability of earthquake can be met with, quick repair of structure progress to damage after earthquake is scheme the most economic, and controls and damage
Occur over just Local Members and the component of damage is replaced after earthquake, be to repair structure means the most thorough and perfect, because
This, damaged member easily replaces the effective ways for being to ensure that structure possesses recoverability after shake.
For above-mentioned background, the utility model proposes a kind of replaceable energy consumption connection group of beam-ends of assembly concrete frame
Part, is a kind of beam-to-column joint component installed in assembly concrete frame structure beam-ends, for bearing and transmitting geological process
Under as caused by frame beam-ends moment of flexure upside and/or lower edge axle power repeatedly;By bear xial feed core consume energy rod,
Constraint system and its connecting component at both ends composition, in form similar to small-sized buckling restrained brace (BRB), core energy consumption
Rod lateral buckling when being pressurized suffers restraints the limitation of system and adjacent concrete, and constrains system and be fixed on beam by pre-embedded bolt
Hold on concrete, the flexing of amplitude will not occur during surrender even if core energy consumption rod is pressurized.During small shake, it is arranged on beam-ends
The core of side and/or downside energy consumption rod keeps elasticity, and bending stiffness is provided for beam-to-column joint;When middle shake or big shake, core energy consumption
Rod occurs surrender tension or in compression and utilizes hysteretic characteristic dissipation seismic energy, reduces the dynamic response of structure, and damage is only concentrated
In the energy consumption section of energy consumption core rod, and the remainder of structure keeps elasticity.After the earthquake, can be consumed energy by loosening core
The connecting component of rod both sides releases the connection of core energy consumption rod and anchor bar in longitudinal reinforcement in beam and column, after taking out damage
Energy consumption core rod simultaneously reinstalls new core energy consumption rod,
It can reach the purpose for repairing structure.The easy to connect of rod and two end bars the utility model is characterized in that core consumes energy
Reliably, while the ductility energy dissipation capacity that can play stably, damage are focusing only on core energy consumption rod, and can be very square after macroseism
Just replacement is realized to the core energy consumption rod of damage, so that fast quick-recovery structure function.
The content of the invention
Technical problem:Prefabricated assembled concrete frame construction is the important feature form for being adapted to building industrialization to build.
Concrete frame joint is both the joint of component, is field erected key operation position, but be 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 area and facilitate connection construction simultaneously
It can coordinate the connection mode of installation error, how to utilize the position and guarantee for surrendering abduction mechanism control damage and energy consumption generation
There is flexing when being pressurized in the energy dissipation capacity of structure, the energy-consuming parts for how avoiding being plastically deformed, how using connecting structure
Make provide violent earthquake after structure recoverability, be ensure assembly concrete Seismic Performance of Concrete Frame and can application property,
The key technical problem of characteristic can be repaired after lift structure shake.The purpose that the utility model carries is exactly for a kind of assembly concrete
The replaceable energy consumption connection component of beam-ends of frame.
Technical solution:In order to solve the above technical problems, the utility model provides a kind of beam of assembly concrete frame
Replaceable energy consumption connection component is held,
The replaceable energy consumption connection component of beam-ends of the assembly concrete frame is arranged on assembly concrete frame
On the upside of the beam-ends of Structure Beam-column connection and/or downside, the connection component include core energy consumption rod, arranged on core energy consumption rod one end
Column to reinforcing steel bar connecting sleeve tube, be arranged in core energy consumption the rod other end beam to Combined adjustable splice and be laid on core energy consumption
Constraint system of the rod away from beam by the outside of curved neutral axis.
Preferably, the replaceable energy consumption connection component is made of metal material, its both sides, which also has, is embedded in frame column
Anchor bar and longitudinal reinforcement in the beam in Vierendeel girder is embedded in interior column, core energy consumption rod and anchor bar in column
And composition one is reliably connected to Combined adjustable splice to reinforcing steel bar connecting sleeve tube and beam by column between longitudinal reinforcement in beam
A continuous power transmission component.
Preferably, described core energy consumption rod is in turn divided into column to linkage section, column to changeover portion, energy consumption along its length
Section, beam are to changeover portion and beam to linkage section;Sectional area in the energy consumption section is identical;The column is to linkage section and the beam to even
The sectional area for connecing section is more than the sectional area of the energy consumption section, and column is carved with external screw thread to connection section surface, and beam is carved to connection section surface
There is external screw thread;Duan Yuzhu consume energy to linkage section and beam to gentle transition between linkage section, formed respectively column to changeover portion and beam to
Changeover portion.
Preferably, the constraint system includes being provided with by curved neutral axis side away from beam on the outside of core energy consumption rod
The constraint cover board of semi-circular groove, the pre-embedded bolt for being embedded in precast concrete tongue and groove beam beam-ends and for fixed constraint cover board with it is pre-
The nut of concrete tongue-and-groove beam relative position processed;The energy consumption section of the length covering core energy consumption rod of the constraint cover board, constraint
The location and shape for the semi-circular groove opened on cover board and the outer contour of covered core energy consumption rod section match, semi-circular groove
Each position diameter slightly larger than core energy consumption rod correspondence position diameter.
Preferably, the energy consumption section surface of core energy consumption rod has non-cohesive material parcel.
Preferably, the column to reinforcing steel bar connecting sleeve tube be reinforced bar straight thread sleeve or taper thread sleeve.
Preferably, the beam includes outer sleeve, the first inner sleeve, the second inner sleeve and simultaneously to Combined adjustable splice
Cap;
Described outer sleeve one end end set for diameter be more than core consume energy rod outside linkage section nominal diameter etc.
Footpath necking, another end section inner wall are equipped with internal thread;The first inner sleeve outside diameter be more than outer sleeve isometrical reentrant diameter but
Less than outer sleeve internal diameter, first inner sleeve one end offers center counter sink, and the inwall processing of the center counter sink has interior spiral shell
Line, the first inner sleeve other end are provided with guide head, and guide head is arranged to the forms such as hemispherical or cone;Second inner sleeve
The centre bore of cylinder is through hole, and through-hole diameter is slightly larger than the maximum diameter of the first inner sleeve guide head, and the through-hole wall is equipped with interior
Screw thread, there is external screw thread on one end barrel of the second inner sleeve, and the male threaded end of the second inner sleeve is pushed against in the first inner sleeve
End;Described and hatband has central through hole, and the inner wall of the central through hole is equipped with internal thread;
The beam of the core energy consumption rod connected passes through isometrical necking to linkage section end, its external screw thread sinks with the first inner sleeve
The screw-internal thread fit of head bore is screwed on;The internal thread of outer sleeve coordinates with the external screw thread on the second inner sleeve barrel to be screwed on;Institute
Longitudinal reinforcement end segments are equipped with external screw thread, the screw-internal thread fit rotation of the external screw thread and the second inner sleeve inner wall in the beam of connection
Connect;And the external screw thread cooperation of longitudinal reinforcement end is screwed in the internal thread and beam of cap, and cap is pushed against in the second inner sleeve end.
Preferably, there is bolt hole on the constraint cover board, passed through easy to pre-embedded bolt, and tighten nut on it.
Preferably, the metal material is steel or other ductile metals.
Beneficial effect:Compared with prior art, the utility model has the following advantages:
1) structural damage is concentrated, and energy-dissipating property is good.In the utility model, by reasonably designing, core can be consumed
Surrender bearing capacity of the energy consumption section of energy rod under axle power effect is less than anchor bar in the column that it is connected, longitudinal reinforcement in beam
Surrender bearing capacity and its anchoring bearing capacity, again smaller than surrender of the beam to linkage section, column to linkage section of core energy consumption rod
Anchor bar in bearing capacity and both ends and column, the connection bearing capacity in beam between longitudinal reinforcement, so that surrender is only sent out
In the raw energy consumption section for consuming energy rod in core.Due to the energy consumption connection component for being mounted with easily to surrender in beam-ends areas of plasticity hinge, its core
Heart energy consumption rod can absorb under geological process and consume the energy of Seismic input structure, ensure main supporting member beam,
In the case that excessive deformation or damage do not occur in itself for column, reduce seismic response.
2) surrender abduction mechanism can be realized effectively.Energy consumption connection component is arranged on beam-ends plastic hinge region by the utility model
Domain, under rational design, the low bearing capacity of the tension and compression surrender more other building blocks of bearing capacity of core energy consumption rod, by core
The energy consumption section of energy consumption rod takes the mode for weakening section, and surrender can be induced to be produced in specified region, so under geological process,
Core energy consumption rod can occur to surrender and enter plasticity prior to other components of frame and component, form a kind of surrender abduction mechanism,
Thereby may be ensured that under violent earthquake, surrender be only likely to occur core energy consumption rod in, and remainder can ensure it is lossless
Or the insignificant state of damage.Energy consumption section has certain length, it is preferable that there is adhesive-less layer on the surface for the section that consumes energy, therefore works as
When producing plastic deformation, there is similar plastic strain in energy consumption segment limit, be plastically deformed being averaged in lower energy consumption section
Strain it is relatively low, be conducive to play metal material low-cycle fatigue ability.
3) the flexing unstability that rod may occur after axial compression surrender it is possible to prevente effectively from core consumes energy.Core energy consumption rod
Constraint component is equipped with energy consumption segment limit, outside (close to concrete cover side) and left and right are all subject to metal restriction component
Constraint, inner side constrained be subject to beam body inner concrete, and no matter the core rod that consumes energy be inclined to there are potential flexing in which direction, all
There are enough metal parts and measuring body concrete to constrain its lateral deformation.Therefore core energy consumption rod will not produce big when being pressurized
The bending deformation of width, so as to ensure that occurrence and distribution is complete in energy consumption section as when core energy consumption rod can be with tension when being pressurized
Surrender in section.Since surrender is only limitted to occur in the energy consumption section of core energy consumption rod, the longitudinal reinforcement of beam keeps elastic stage, therefore
The same Bar Buckling of ordinary reinforced concrete plastic hinge will not occur, the damage -form such as cover concrete collapses, be conducive to
The bearing capacity in section is kept not reduce when plastic hinge corner is larger.
4) convenience is installed and being capable of reliable delivery pulling force and pressure.Beam, column and its phase of assembly concrete frame structure
Component is closed, makes in factory, is installed successively to building-site respectively.If the size of component is more than or is exactly equal to component installation
The size in space, will cause the difficult to install of component.Therefore, structure should be slightly less than in order to facilitate the installation of component, the size of component
The size of part installation space, there are gap between the rear part that so results in that installation is complete.Screw shell connection can eliminate structure
Gap between part, but core energy consumption rod/existing minim gap still may between end reinforced screw thread and internal thread of sleeve
Cause sliding during longitudinal power transmission.Rigidity reduces when this sliding causes connection stress, to bearing axial tension or pressure
Energy consumption connection is very unfavorable.In the utility model, core energy consumption rod one end is using branch sleeve and the anchoring steel being anchored in column
Muscle is connected, and when installation screws and the end of core energy consumption rod is pushed against anchor bar in column after branch sleeve, eliminates between the two
Gap, or connected using taper thread sleeve, the eliminating deformation gap of ridge itself can also be used;The other end uses Combined adjustable
Core energy consumption rod is connected as a single entity by the branch sleeve of splice with longitudinal reinforcement in beam, easy to adjust core energy consumption rod and reinforcing bar
Between existing gap, beam column is linked as organically by and the telescopic nature shown in installation process by sleeve in itself
One;After installation is complete and tightens each several part screw thread, the second inner sleeve and the first inner sleeve are oriented to for Combined adjustable splice
Rostral end pushes against, the isometrical necking step of outer sleeve and the first inner sleeve counter sink side end push against, and makes core energy consumption rod beam
Offset to the thread of linkage section external screw thread and the first inner sleeve internal thread in side, the thread of outer sleeve internal thread and the second inner sleeve
The externally threaded thread of cylinder offsets in opposite side;The simultaneously end of tight second inner sleeve of crown, and make the second inner sleeve internal thread at the same time
Thread and beam in the thread of longitudinal reinforcement end thread offset in side and longitudinal reinforcement end in the thread and beam of cap internal thread
The thread of portion's screw thread offsets in opposite side, so that the pulling force of core energy consumption rod and pressure between component by closely offseting
Compression face transmission, is connected in transmission pulling force and press process and does not produce sliding, eliminate influence of the thread pitch to power transmission, protects
Demonstrate,prove the validity and reliability of node force transfer system.
5) possesses stronger adaptability to the location tolerance component.Employ Combined adjustable splice and carry out stress steel
The connection of muscle and core energy consumption rod, muff joint is short not to influence stirrup installation, and shape is small not to influence concrete cover;Steel at the same time
The tunable characteristic of muscle connector can pass through rotation to the length of reinforcing bar and the appropriate adjusting of eccentric progress, prefabricated post, beam installation when in place
Turn splice and be finely adjusted raising component installation accuracy, material change and stress will not be produced, ensure that quality of connection is reliable and stable.
6) simplicity is repaired after structure shake, structural behaviour can be ensured after reparation.The construction of the utility model will be strong
The core energy consumption rod easily damaged under earthquake is arranged in beyond Column border node area, close to the position on the upper and lower surface of beam-ends, is possessed open
Working face, and anchor bar in column, being reliably connected between longitudinal reinforcement and core energy consumption rod in beam pass through setting for performance-based
Meter, in seismic process by protection within the elastic range, therefore when needing replacing core energy consumption rod, above-mentioned connection can be with
Very easily release, and do not influence in column normal use of the longitudinal reinforcement within phase projected life in anchor bar and beam.Together
Sample is by the design of performance-based, and during core energy consumption rod surrender section is pressurized or tension is surrendered, beam column component does not damage
Wound or damage very little, do not influence the reuse of beam column component.So as to be consumed energy after the earthquake by removing the core of damage
Rod, and new core energy consumption rod is reinstalled, achieve the purpose that quickly to repair structure and recover its function.
7) it is highly practical, do not affect the appearance.This energy consumption connection component is arranged in beam-ends, the power transmission of core energy consumption rod and beam column
Directly, and pouring concrete is integrally formed structure behind the remainder to reservation operations space after installing, beam is outer
Sight is consistent with cast-in-place Vierendeel girder, meets traditional aesthetic conceptions.
Brief description of the drawings
Fig. 1 is the replaceable energy consumption connection component overall schematic of the beam-ends of assembly concrete frame.
Fig. 2 is core energy consumption rod schematic diagram in the replaceable energy consumption connection component of the beam-ends of assembly concrete frame.
Fig. 3 is the replaceable energy consumption connection component column of the beam-ends of assembly concrete frame to reinforcing steel bar connecting sleeve tube schematic diagram.
Fig. 4 is that the replaceable energy consumption connection component central sill of the beam-ends of assembly concrete frame shows to adjustable steel bar built-up joint
It is intended to.
Fig. 5 is to constrain cover plate schematic diagram in the replaceable energy consumption connection component of the beam-ends of assembly concrete frame.
Fig. 6 is that Combined adjustable splice pressure passes in the replaceable energy consumption connection component of the beam-ends of assembly concrete frame
Pass mechanism schematic diagram.
Fig. 7 is that Combined adjustable splice pulling force passes in the replaceable energy consumption connection component of the beam-ends of assembly concrete frame
Pass mechanism schematic diagram.
Have in figure:Core energy consumption rod 1, column is to linkage section 11, and linkage section external screw thread 111, column is to changeover portion 12, and consume energy section
13, beam is to changeover portion 14, and beam is to linkage section 15, linkage section external screw thread 151;Column is to reinforcing steel bar connecting sleeve tube 2;Beam is to Combined adjustable steel
Muscle connector 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, the second inner sleeve internal thread 331, the second inner sleeve external screw thread 332, and cap 34, and
Cap internal thread 341;Constraint system 4, constrains cover board 41, semi-circular groove 411, bolt hole 412, pre-embedded bolt 42, nut 43;In column
Anchor and indulge muscle 5, anchor bar end thread 51 in column;Longitudinal reinforcement 6 in beam, longitudinal reinforcement end thread 61 in beam;Soap-free emulsion polymeization
Material 7, rear pouring concrete 8;Precast concrete tongue and groove beam 9.
Embodiment
Below by taking an embodiment of the utility model as an example, illustrate specific embodiment of the present utility model.
The replaceable energy consumption connection component of beam-ends for the assembly concrete frame that the utility model is proposed, will be installed on beam
Left end and/or right end, positioned at the upside of beam-ends and/or downside.In the present specification, said exemplified by being installed on the upside of beam left end
It is bright.During using this, the left side of beam is column, and the region of deck-molding scope inner pillar is Column border node region.
Referring to Fig. 1-7, a kind of replaceable energy consumption connection group of the beam-ends of assembly concrete frame provided by the utility model
Part, the replaceable energy consumption connection component of beam-ends of the assembly concrete frame are arranged on assembly concrete frame structural beam
On the upside of the beam-ends of column connection and/or downside, the connection component include core energy consumption rod 1, arranged on core energy consumption rod 1 one end column to
Reinforcing steel bar connecting sleeve tube 2, be arranged in the beam of core energy consumption 1 other end of rod to Combined adjustable splice 3 and be laid on core energy consumption
Constraint system 4 of the rod 1 away from beam by the outside of curved neutral axis.
The replaceable energy consumption connection component is made of metal material, its both sides, which also has, to be embedded in the column in frame column
Anchor bar 5 and longitudinal reinforcement 6 in the beam in Vierendeel girder is embedded in, core energy consumption rod 1 and anchor bar 5 and beam in column
Composition one is reliably connected to Combined adjustable splice 3 to reinforcing steel bar connecting sleeve tube 2 and beam by column between interior longitudinal reinforcement 6
Continuous power transmission component.
Described core energy consumption rod 1 is in turn divided into column to linkage section 11, column to changeover portion 12, energy consumption section along its length
13rd, beam is to changeover portion 14 and beam to linkage section 15;Sectional area in the energy consumption section 13 is identical;The column is to linkage section 11 and institute
The sectional area that beam is more than the energy consumption section 13 to the sectional area of linkage section 15 is stated, column is carved with external screw thread 111 to 11 surface of linkage section,
Beam is carved with external screw thread 151 to 15 surface of linkage section;Section 13 and column consume energy to linkage section 11 and beam to gentle mistake between linkage section 15
Cross, form column respectively to changeover portion 12 and beam to changeover portion 14.
The constraint system 4 includes being provided with semicircle by curved neutral axis side away from beam positioned at 1 outside of core energy consumption rod
The constraint cover board 41 of shape groove 411, be embedded in the pre-embedded bolt 42 of 9 beam-ends of precast concrete tongue and groove beam and for fixed constraint cover board
41 with the nut 43 of 9 relative position of precast concrete tongue and groove beam;The length covering core energy consumption rod 1 of the constraint cover board 41
Energy consumption section 13, constrain the location and shape of semi-circular groove 411 opened on cover board and cover core consume energy 1 section of rod outside
Profile matches, and the diameter of each position of semi-circular groove 411 is slightly larger than the diameter of core energy consumption 1 correspondence position of rod.
13 surface of energy consumption section of the core energy consumption rod 1 has non-cohesive material 7 to wrap up.
The column to reinforcing steel bar connecting sleeve tube 2 be reinforced bar straight thread sleeve or taper thread sleeve.
The beam includes outer sleeve 31, the first inner sleeve 32,33 and of the second inner sleeve to Combined adjustable splice 3
And cap 34;
31 one end end set of outer sleeve is more than the nominal diameter of the outside linkage section 15 of core energy consumption rod 1 for diameter
Isometrical necking 311, another end section inner wall is equipped with internal thread 312;First inner sleeve, 32 outside diameter is more than outer sleeve 31
Isometrical 311 diameter of necking but it is less than 31 internal diameter of outer sleeve, 32 one end of the first inner sleeve offers center counter sink, and the center sinks
The inwall processing of head bore has internal thread 321, and 32 other end of the first inner sleeve is provided with guide head 322, and guide head 322 is arranged to half
The form such as spherical or conical;The centre bore of second inner sleeve 33 is through hole, and through-hole diameter is slightly larger than the first inner sleeve
The maximum diameter of 32 guide heads 322, the through-hole wall are equipped with internal thread 331, have external screw thread on one end barrel of the second inner sleeve
332, the male threaded end of the second inner sleeve is pushed against in the end of the first inner sleeve;Described and cap 34 carries central through hole, institute
The inner wall for stating central through hole is equipped with internal thread 341;
The beam of the core energy consumption rod 1 connected passes through isometrical necking 311 to 15 end of linkage section, its external screw thread 151 and the
The internal thread 321 of one inner sleeve, 32 counter sink, which coordinates, to be screwed on;The internal thread 312 of outer sleeve 31 is with being arranged on 33 barrel of the second inner sleeve
On external screw thread 332 coordinate be screwed on;6 end segments of longitudinal reinforcement are equipped with external screw thread 61 in the beam connected, the external screw thread 61 with
The internal thread 331 of second inner sleeve, 33 inner wall, which coordinates, to be screwed on;And in the internal thread 341 of cap 34 and beam 6 end of longitudinal reinforcement it is outer
Screw thread 61, which coordinates, to be screwed on, and cap 34 is pushed against in 33 end of the second inner sleeve.
There is bolt hole 412 on the constraint cover board 41, passed through easy to pre-embedded bolt 42, and tighten nut 43 on it.
The metal material is steel or other ductile metals.
1) prefabricated components
In the element precast stage, anchor bar 5 in the pre- buried column in relevant position that is connected in Column border node region, its outer end is not
Prominent column concrete surface, its outer end section carry end thread section 51, and the cross-section centroid of anchor bar 5 will be with that will be connected in column
Beam in the cross-section centroid of longitudinal reinforcement be located at same axis;The near outer ends of anchor bar 5 reserve sleeve connection institute in column
The headspace needed;Meanwhile beam tongue and groove is stretched out in the longitudinal reinforcement 6 in the pre-buried beam of beam-ends of precast concrete tongue and groove beam 9, its end
End face certain length, its section of stretching out end carry connection screw thread section 61;Installation core energy consumption is reserved on the left of beam-ends using cave mould
Rod 1 and its tongue and groove space for constraining system 4, it is ensured that beam column installs in rear pillar in place longitudinal reinforcement 6 in 5 end of anchor bar and beam
Clear distance between end is slightly larger than the length of core energy consumption rod 1, and has the space needed for installation Combined adjustable splice 3.
According to Performance Design, ensure that anchor bar 5 is held in column concrete with anchoring of the longitudinal reinforcement 6 in concrete in beam in column
Loading capability is more than the surrender tension or in compression of energy consumption section 13 of core energy consumption rod 1 and the maximum carrying after tension and compression cyclic hardening repeatedly
Power.
The pre-embedded bolt 42 of pre-buried constraint system 4 and ensure its anchoring strength in beam-ends relevant position.
Complete it is above-mentioned it is pre-buried after, respectively casting beams, column concrete, make prefabricated components.
2 beam columns are installed
During in-site installation, first prefabricated beam column is lifted in place, adjusting depth of beam and horizontal level makes anchoring steel in column
Muscle 5 and the cross-section centroid of longitudinal reinforcement in beam 6 are mutually aligned.
3 cores energy consumption rod and constraint system installation
The energy consumption section 13 of core energy consumption rod 1 is wrapped up with non-cohesive material.
By beam to the outer sleeve 31 of Combined adjustable splice 4 be inserted in core energy consumption rod 1 beam to linkage section 15, by first
Inner sleeve 32 is screwed into the beam of core energy consumption rod 1 to linkage section external screw thread 151 and pushes against.
By beam to Combined adjustable splice 3 and 34 and second inner sleeve 33 of cap be sequentially screwed into the end of longitudinal reinforcement in beam
Portion's screw thread 61.
By the column of core energy consumption rod 1 to anchor bar thread segment 51 in linkage section 11 and column by column to reinforcing steel bar connecting sleeve tube
2 connect and are tightened by the screw thread of its assembly surface, and ensure that the column of core energy consumption rod 1 is pushed against in column to linkage section end
The end of 5 thread segment of anchor bar.By the beam of core energy consumption rod 1, into linkage section 15 and beam, longitudinal reinforcement thread segment 61 passes through beam
Connect to Combined adjustable splice 3 and be tightened by the screw thread of its assembly surface, detailed process includes:By the second inner sleeve
Cylinder 33 is threaded towards the first inner sleeve 32 and holds out against, when the axis of core energy consumption rod 1 and longitudinal reinforcement 6 in beam is there are during slight error,
Due to the guiding role between 322 and second inner sleeve 33 of guide head, longitudinal reinforcement or core energy consumption rod will produce small in beam
Bending adapt to error;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, really
The isometrical necking step for protecting outer sleeve 31 blocks the end of the first inner sleeve 32 and tightens;By simultaneously 34 the second inner sleeve of rotation direction 33 of cap
And tighten.Above-mentioned connection can ensure the connection gapless between longitudinal reinforcement 4 and core energy consumption rod iron 1 in beam.
After the core energy consumption installation of rod 1 is fixed, the bolt hole 412 for constraining cover board 41 is passed through into pre-embedded bolt 42, and
Ensure that its semi-circular groove clasps energy consumption core rod, nut 43 is screwed into above pre embedded bolt 42 and tightens fixation;Complete above-mentioned work
After work, beam tongue and groove is tamped and conserved by rear pouring concrete 8 with headspace in column, treats that concrete reaches intensity deutomerite
Point possesses normal running conditions.
The replacement of core energy consumption rod is damaged after 4 shakes
After violent earthquake, core energy consumption rod can be damaged because of plastic deformation repeatedly, it is necessary to be replaced to repair knot
Structure.During replacement, beam tongue and groove and the rear pouring concrete 8 in headspace in column are cut, first according to the flow opposite with installation process
Constraint system 4 is removed, loosens beam to Combined adjustable splice 3 and column to branch sleeve 2, removes the core energy consumption rod 1 of damage,
Then reinstall new core energy consumption rod according to step 3 core energy consumption rod and constraint system installation method and obligatory point is installed
System, finally again tamps the rear pouring concrete 8 of headspace, the anti-seismic performance of structure is restored.
Above example is that referring to the drawings, the preferred embodiment of the utility model is described in detail, the skill of this area
Art personnel are by carrying out above-described embodiment modification or change on various forms, but without departing substantially from the substantive feelings of the utility model
Under condition, all fall in the scope of protection of the utility model.
Claims (9)
- A kind of 1. replaceable energy consumption connection component of the beam-ends of assembly concrete frame, it is characterised in that:The replaceable energy consumption connection component of beam-ends of the assembly concrete frame is arranged on assembly concrete frame structure On the upside of the beam-ends of beam-to-column joint and/or downside, which includes core energy consumption rod (1), rod (1) one end of consuming energy arranged on core Column to reinforcing steel bar connecting sleeve tube (2), be arranged in core energy consumption rod (1) other end beam to Combined adjustable splice (3) and paving It is located at constraint system (4) of the core energy consumption rod (1) away from beam by the outside of curved neutral axis.
- 2. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 1, it is characterised in that: The replaceable energy consumption connection component is made of metal material, its both sides, which also has, is embedded in anchor bar in the column in frame column (5) and it is embedded in longitudinal reinforcement in the beam in Vierendeel girder (6), core energy consumption rod (1) and anchor bar (5) and beam in column Structure is reliably connected to Combined adjustable splice (3) to reinforcing steel bar connecting sleeve tube (2) and beam by column between interior longitudinal reinforcement (6) Into a continuous power transmission component.
- 3. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 1, it is characterised in that: Described core energy consumption rod (1) is in turn divided into column to linkage section (11), column to changeover portion (12), energy consumption section along its length (13), beam is to changeover portion (14) and beam to linkage section (15);Sectional area in the energy consumption section (13) is identical;The column is to connection Section (11) and the beam are more than the sectional area of the section (13) that consumes energy to the sectional area of linkage section (15), and column is to linkage section (11) table External screw thread (111) is carved with face, and beam is carved with external screw thread (151) to linkage section (15) surface;The section that consumes energy (13) is with column to linkage section (11) and beam is to gentle transition between linkage section (15), forms column respectively to changeover portion (12) and beam to changeover portion (14).
- 4. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 3, it is characterised in that: The constraint system (4) includes being provided with semi-circular groove by curved neutral axis side away from beam on the outside of core energy consumption rod (1) (411) constraint cover board (41), be embedded in the pre-embedded bolt (42) of precast concrete tongue and groove beam (9) beam-ends and for fixed constraint Cover board (41) and the nut (43) of precast concrete tongue and groove beam (9) relative position;The length covering of the constraint cover board (41) The energy consumption section (13) of core energy consumption rod (1), constrains the location and shape for the semi-circular groove (411) opened on cover board and covers core The outer contour of heart energy consumption rod (1) section matches, and the diameter of each position of semi-circular groove (411) is slightly larger than core energy consumption rod (1) The diameter of correspondence position.
- 5. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 4, it is characterised in that: There is non-cohesive material (7) parcel on energy consumption section (13) surface of the core energy consumption rod (1).
- 6. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 4 or 5, its feature exist In:The column to reinforcing steel bar connecting sleeve tube (2) be reinforced bar straight thread sleeve or taper thread sleeve.
- 7. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 4, it is characterised in that: The beam includes outer sleeve (31), the first inner sleeve (32), the second inner sleeve (33) and simultaneously to Combined adjustable splice (3) Cap (34);Described outer sleeve (31) one end end set is more than the outer beams of core energy consumption rod (1) to the public affairs of linkage section (15) for diameter Claim the isometrical necking (311) of diameter, another end section inner wall is equipped with internal thread (312);First inner sleeve (32) outside diameter is big In outer sleeve (31) isometrical necking (311) diameter but be less than outer sleeve (31) internal diameter, the first inner sleeve (32) one end offers Center counter sink, the inwall processing of the center counter sink have internal thread (321), and the first inner sleeve (32) other end, which is provided with, leads To head (322), guide head (322) is arranged to hemispherical or conical pattern;The centre bore of second inner sleeve (33) is logical Hole, through-hole diameter are slightly larger than the maximum diameter of the first inner sleeve (32) guide head (322), and the through-hole wall is equipped with internal thread (331), there is external screw thread (332) on one end barrel of the second inner sleeve, the male threaded end of the second inner sleeve is pushed against in first The end of sleeve;Described and cap (34) carries central through hole, and the inner wall of the central through hole is equipped with internal thread (341);The beam of the core energy consumption rod (1) connected passes through isometrical necking (311), its external screw thread (151) to linkage section (15) end Coordinate with the internal thread (321) of the first inner sleeve (32) counter sink and be screwed on;The internal thread (312) of outer sleeve (31) is with being arranged on second External screw thread (332) on inner sleeve (33) barrel, which coordinates, to be screwed on;Longitudinal reinforcement (6) end segments are equipped with external screw thread in the beam connected (61), the internal thread (331) of the external screw thread (61) and the second inner sleeve (33) inner wall, which coordinates, is screwed on;And the internal thread of cap (34) (341) coordinate with the external screw thread (61) of longitudinal reinforcement in beam (6) end and be screwed on, and cap (34) is pushed against in the second inner sleeve (33) end End.
- 8. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 7, it is characterised in that: There is bolt hole (412) on the constraint cover board (41), passed through easy to pre-embedded bolt (42), and tighten nut (43) on it.
- 9. the replaceable energy consumption connection component of the beam-ends of assembly concrete frame according to claim 2, it is characterised in that: The metal material is steel.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107447857A (en) * | 2017-07-12 | 2017-12-08 | 东南大学 | The replaceable power consumption connection component of beam-ends of assembly concrete framework |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107447857A (en) * | 2017-07-12 | 2017-12-08 | 东南大学 | The replaceable power consumption connection component of beam-ends of assembly concrete framework |
CN107447857B (en) * | 2017-07-12 | 2022-11-15 | 东南大学 | Beam end replaceable energy consumption connecting assembly of assembled concrete frame |
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