CN108019000A - A kind of high-strength high ductility concrete of assembled exempts from sleeve connection structure and connection method - Google Patents
A kind of high-strength high ductility concrete of assembled exempts from sleeve connection structure and connection method Download PDFInfo
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- CN108019000A CN108019000A CN201810067744.3A CN201810067744A CN108019000A CN 108019000 A CN108019000 A CN 108019000A CN 201810067744 A CN201810067744 A CN 201810067744A CN 108019000 A CN108019000 A CN 108019000A
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- 239000004567 concrete Substances 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 107
- 210000003205 muscle Anatomy 0.000 claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 17
- 239000010881 fly ash Substances 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 239000002956 ash Substances 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000004568 cement Substances 0.000 claims description 10
- 239000004576 sand Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 4
- 239000011499 joint compound Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 238000010276 construction Methods 0.000 description 8
- 230000015271 coagulation Effects 0.000 description 6
- 238000005345 coagulation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00939—Uses not provided for elsewhere in C04B2111/00 for the fabrication of moulds or cores
Abstract
The present invention provides a kind of high-strength high ductility concrete of assembled to exempt from sleeve connection structure and connection method, including precast reinforced concrete beam, precast reinforced concrete beam includes stirrup and the lap segment arranged on beam lower part indulges muscle, and stirrup top is exposed, and lap segment, which is indulged, is equipped with reserved stirrup on the outside of muscle；Muscle is indulged by lap segment and is staggeredly overlapped in precast reinforced concrete beam lower part, and lap segment indulges the muscle lap-joint that interlocks and is equipped with tie hoop, precast reinforced concrete beam top is connected by sequentially passing through reserved stirrup with the stirrup in precast reinforced concrete beam, high-strength high ductility concrete is poured after lap segment, pouring concrete behind precast reinforced concrete beam top.The lap of splice of reinforcing bar can be greatly shortened using the intensity and adhesive property of high-strength high ductility concrete superelevation, reduce the use for even removing reserved stirrup from, avoid beam steel bent anchor, solve node area reinforcing bar congested problem.Since without using sleeve, factory is easy to make, is easily installed, and is easy to control without professional's mass.
Description
Technical field
The invention belongs to prefabricated concrete structure technical field, and in particular to a kind of high-strength high ductility concrete of assembled
Exempt from sleeve connection structure and connection method.
Background technology
It can ensure the quality of prefabricated components well since prefabricated components are prefabricated in the factory, the safety of fabricated construction is main
Connection depending on these components and surrounding member.Reliable quality of connection can be realized by interior as defined in the requirement transmission of design
Power, and the problem of using with perception will not be caused.If connector quality of connection existing defects, gently cause crack, leakage
Deng using it is upper the problem of, it is heavy then influence component and component, component and supporting structure between power transmission, cause bearing capacity and safety
The problem of aspect, or even cause structure to be disintegrated, collapse across etc. serious consequence.The seimic disaster census of each secondary violent earthquake is found：Whole
In body collapsed building, precast beam, column component damage are lighter, and main collapse the reason is that in frame structure between each component
Continuous damage.
At present, the major way of China's fabricated construction member reinforcing steel bar connection is welded to connect, mechanically connects, binding and take
Connect, the form such as sleeve grouting connection, constraint paddle anchor connection.Wherein it is welded to connect and mechanically connects since site operation is extremely tired
Difficulty, can not apply in the connection of fabricated construction component substantially in practice；Binding overlap joint is since the lap of splice is long, connectivity
The reasons such as energy difference, are only applied to the connection of reinforcing bar in assembled superimposed sheet and part beam；Sleeve grouting connection and constraint paddle anchor connect
It is the available two kinds of connection modes of current prefabricated concrete structure to connect, but since prefabricated member volume is big, quality is heavy, connection
Construction is complicated, along with building trade labour's level of China is relatively low, increases the more demanding assembled of the degree of becoming more meticulous
The difficulty of construction, therefore, sleeve grouting connection with constraint paddle anchor connect there are centering difficulty, it is complicated the shortcomings of,
Reinforcing bar in construction influences the duration, causes to waste once conflicting or error is larger will be unable to be installed.
The content of the invention
The purpose of the present invention is overcome drawbacks described above existing in the prior art, there is provided a kind of easy construction, safe and reliable
The high-strength high ductility concrete of assembled exempts from sleeve connection structure and connection method.
Technical solution provided by the invention is as follows：
A kind of high-strength high ductility concrete of assembled exempts from sleeve connection structure, including precast reinforced concrete beam, the pre-manufactured steel
Concrete Beam Reinforced, which includes the left beam of prefabricated reinforced concrete and the right beam of prefabricated reinforced concrete, the precast reinforced concrete beam, to be included
Stirrup and lap segment arranged on beam lower part indulge muscle, and the stirrup top is exposed, and the lap segment, which is indulged, is equipped with reserved stirrup on the outside of muscle；
The left beam of the prefabricated reinforced concrete and prefabricated reinforced concrete You Liang lower parts are indulged muscle by lap segment and are staggeredly overlapped, and take
Connect section and indulge the muscle lap-joint that interlocks and be equipped with tie hoop, the left beam of the prefabricated reinforced concrete and prefabricated reinforced concrete You Liang tops
Connected by sequentially passing through reserved stirrup with the vertical muscle of stirrup in precast reinforced concrete beam, poured high-strength height after connection after lap segment
Ductility concrete, pouring concrete behind precast reinforced concrete beam top.
Prefabricated reinforced concrete upper prop and prefabricated reinforced concrete lower prop are further included, on the prefabricated reinforced concrete upper prop
Back pouring hole is reserved with, and lower face center is prefabricated with prefabricated core column, to precast reinforced coagulation when the prefabricated core column is used to assemble
The support of native upper prop, prefabricated reinforced concrete upper prop and prefabricated reinforced concrete the lower prop corner are equipped with lap segment and indulge muscle,
Each lap segment indulges muscle termination and is equipped with anchor plate, and the prefabricated reinforced concrete upper prop and prefabricated reinforced concrete lower prop are by taking
Connect section indulge muscle interlock overlap, lap segment indulges the interlock tie hoop of lap-joint, lap segment of muscle and indulges reserved stirrup and company on the outside of muscle
The high-strength high ductility concrete filled behind the place of connecing is attached.
Further include prefabricated reinforced concrete upper prop and prefabricated reinforced concrete lower prop, the prefabricated reinforced concrete upper prop and
Prefabricated reinforced concrete lower prop is respectively the scalariform and step-like of falling from power, and two steps are opposite forms lap segment at two, described pre-
Lap segment, which is preset with, at the up/down steps of armored concrete upper prop and prefabricated reinforced concrete lower prop processed indulges muscle and reserved stirrup,
Back pouring hole is reserved with the prefabricated reinforced concrete upper prop, the lap segment of the prefabricated reinforced concrete upper prop is indulged muscle termination and set
There is leveling nut, the lap segment of the prefabricated reinforced concrete lower prop indulges muscle termination and is equipped with anchor plate, the precast reinforced coagulation
Native upper prop and prefabricated reinforced concrete lower prop by lap segment at two indulge muscle interlock overlap, lap segment indulges muscle and interlocks the spiral shell of lap-joint
Rotation stirrup, lap segment are indulged the high-strength high ductility concrete filled behind reserved stirrup and junction on the outside of muscle and are attached.
The prefabricated core column is the 1/2-2/3 of column section on prefabricated reinforced concrete.
The vertical muscle diameter that the lap of splice that the lap segment indulges muscle is 5-15 times.
The anchor plate is circular or square plate, and thickness 10-20mm, diameter or the length of side are indulge muscle 2-3 times.
The a diameter of 4-8mm of tie hoop, it is 20-30mm to reserve stirrup spacing, and reinforcing bar a diameter of 2-4 times circumferential is straight
Footpath.
The component of the high-strength high ductility concrete is cement, flyash, silicon ash, sand, PE fibers, steel fibre and water, its
In, by mass percentage, cement：Flyash：Silicon ash：Sand：Water=1：0-0.3：0.1-0.4：0.76：0.22-0.32；With water
The cumulative volume of mud, flyash, silicon ash, Sha Heshui after mixing is radix, and the volume volume of PE fibers is 1%-1.5%, and steel is fine
The volume volume of dimension is 0.5%-2%.
Present invention also offers a kind of high-strength high ductility concrete of assembled to exempt from sleeve connection method, high-strength using assembled
High ductility concrete exempts from sleeve connection structure, and precast reinforced concrete beam is lifted into predetermined position, by precast reinforced coagulation
The left beam of soil and prefabricated reinforced concrete You Liang lower parts are indulged muscle by lap segment and are staggeredly overlapped, then in lap-joint's winding screw hoop
Muscle, top sequentially pass through the connection of reserved stirrup and stirrup by indulging muscle, and reserved stirrup is bound afterwards, is then poured high-strength
High ductility concrete realizes that assembled connects.
The beneficial effects of the invention are as follows：
（1）The lap of splice of reinforcing bar can be greatly shortened using the intensity and adhesive property of high-strength high ductility concrete superelevation, newly
Old concrete connection is reliable.
（2）High-strength high ductility concrete has the characteristics that higher tensile strength and elongation strain hardening, therefore, can subtract
Few use for even removing reserved stirrup from, avoids beam steel bent anchor, solves the problems, such as that node area reinforcing bar is crowded.
（3）High-strength high ductility concrete has the characteristics that superhigh intensity, high ductility, and component anti-seismic performance improves, Ke Yi
Highly seismic region uses.
（4）Since this kind of connection mode is without using sleeve, factory is easy to make, is easily installed, and reduces process, without
Professional's mass is easy to control, and meets China's present situation.
It is described in further details below in conjunction with attached drawing.
Brief description of the drawings
Fig. 1 is the structure diagram of assembled beam overlap joint connection of the present invention；
Fig. 2 is the structure diagram of the overlap joint connection of assembled column 100%；
Fig. 3 is the structure diagram of the overlap joint connection of assembled column 50%；
Fig. 4 is the damage -form with reserved stirrup normal concrete joint cores；
Fig. 5 is the hysteresis loop with reserved stirrup normal concrete joint cores；
Fig. 6 is not with the high ductility concrete of reserved stirrup（HDC）The damage -form of joint cores；
Fig. 7 is not with the high ductility concrete of reserved stirrup（HDC）The hysteresis loop of joint cores.
In figure：1st, the right beam of prefabricated reinforced concrete；2nd, the left beam of prefabricated reinforced concrete；3rd, muscle is indulged；4th, stirrup is reserved；5th, anchor
Solid plate；6th, tie hoop；7th, prefabricated core column；8th, back pouring hole；9th, leveling nut；10th, prefabricated reinforced concrete upper prop；11st, it is prefabricated
Armored concrete lower prop.
Embodiment
Embodiment 1：
Present embodiments provide a kind of high-strength high ductility concrete of assembled as shown in Figure 1 and exempt from sleeve connection structure, including it is pre-
Reinforced beam processed, the precast reinforced concrete beam includes the left beam 2 of prefabricated reinforced concrete and prefabricated reinforced concrete is right
Beam 1, the precast reinforced concrete beam includes stirrup and the lap segment arranged on beam lower part indulges muscle, and the stirrup top is exposed, institute
Lap segment is stated to indulge on the outside of muscle equipped with reserved stirrup 4；
The left beam 2 of the prefabricated reinforced concrete and right 1 lower part of beam of prefabricated reinforced concrete are indulged muscle by lap segment and are staggeredly overlapped, and
Lap segment indulges the muscle lap-joint that interlocks and is equipped with tie hoop 6, the left beam 2 of the prefabricated reinforced concrete and the right beam of prefabricated reinforced concrete
1 top is connected by the vertical muscle 3 for sequentially passing through stirrup in reserved stirrup 4 and precast reinforced concrete beam, is poured after connection after lap segment
There is a high-strength high ductility concrete, pouring concrete behind precast reinforced concrete beam top.
Embodiment 2：
On the basis of embodiment 1, present embodiments provide a kind of high-strength high ductility concrete of assembled as shown in Figure 2 and exempt to cover
Cylinder connection structure, further includes prefabricated reinforced concrete upper prop 10 and prefabricated reinforced concrete lower prop 11, the precast reinforced coagulation
Back pouring hole 8 is reserved with native upper prop 10, and lower face center is prefabricated with prefabricated core column 7, the prefabricated core column 7 is for when assembling pairs
The support of prefabricated reinforced concrete upper prop 10,11 4 jiaos of the prefabricated reinforced concrete upper prop 10 and prefabricated reinforced concrete lower prop
It is equipped with lap segment and indulges muscle, each lap segment indulges muscle termination and is equipped with anchor plate 5, the prefabricated reinforced concrete upper prop 10 and prefabricated
Armored concrete lower prop 11 by lap segment indulge muscle interlock overlap, lap segment indulges muscle and interlocks the tie hoop 6 of lap-joint, lap segment
The high-strength high ductility concrete filled after reserved stirrup 4 and junction on the outside of vertical muscle is attached.
Work progress：Step 1：Binding in precast plant into cross girders, column framework of steel reinforcement, by framework of steel reinforcement after the completion of binding
It is put into pre-fabricated template, first carries out pouring and conserving for normal concrete, forms precast beam（Including precast reinforced coagulation
The right beam 1 of soil and the left beam 2 of prefabricated reinforced concrete）, prefabricated post（Including prefabricated reinforced concrete upper prop 10 and prefabricated reinforced concrete
Lower prop 11.
Step 2：Prefabricated post is carried out at the scene to be lifted into predetermined position, in lap segment Zong Jin lap-joints winding screw
Stirrup 6, and the reserved stirrup 4 being placed in advance in is bound, high-strength high ductility concrete is then poured, by prefabricated reinforced concrete upper prop
10 and prefabricated reinforced concrete lower prop 11 be attached, as shown in Fig. 2, complete column connection.
As shown in Fig. 2, the connection of the column in the present embodiment connects for 100% overlap joint, prefabricated core column 7 act as filling in component
Support and positioning are played the role of in timing.Wherein, 3 diameter of vertical muscle that the lap of splice that the lap segment indulges muscle is 5-15 times.Institute
Anchor plate 5 is stated as circular or square plate, thickness 10-20mm, diameter or the length of side are indulge muscle 3 2-3 times.The tie hoop
6 a diameter of 4-8mm, it is 20-30mm to reserve 4 spacing of stirrup, bar diameter a diameter of 2-4 times circumferential.
The component of the high-strength high ductility concrete is cement, flyash, silicon ash, sand, PE fibers, steel fibre and water, its
In, by mass percentage, cement：Flyash：Silicon ash：Sand：Water=1：0-0.3：0.1-0.4：0.76：0.22-0.32；With water
The cumulative volume of mud, flyash, silicon ash, Sha Heshui after mixing is radix, and the volume volume of PVA fibers is 1%-1.5%, and steel is fine
The volume volume of dimension is 0.5%-2%.
The characteristics of carrying out due to high-strength high ductility Analysis of Concrete Tensile strain hardening and multiple cracking, join domain reserves stirrup 4
Dosage can be reduced suitably, and the amplitude of reduction can be taken as minimum stirrup ratio, i.e. the effect of fiber shearing resistance can be equivalent to minimum with hoop
The shearing resistance effect of rate, as shown in Figure 4, Figure 5, the normal concrete joint cores with reserved stirrup are destroyed seriously, and hysteresis
Curve substantially is pinched, and the high ductility concrete joint core space not with reserved stirrup shown in Fig. 6, Fig. 7 is presented multiple cracking and opens
The characteristics of exhibition, hysteresis loop are full.The high-strength high ductility concrete of the present embodiment belongs to high ductility concrete.
Embodiment 3：
On the basis of embodiment 1, present embodiments provide a kind of high-strength high ductility concrete of assembled as shown in Figure 3 and exempt to cover
Cylinder connection structure, further includes prefabricated reinforced concrete upper prop 10 and prefabricated reinforced concrete lower prop 11, the precast reinforced coagulation
Native upper prop 10 and prefabricated reinforced concrete lower prop 11 are respectively the scalariform and step-like of falling from power, and opposite formed at two of two steps is taken
Section is connect, lap segment is preset with the up/down steps of the prefabricated reinforced concrete upper prop 10 and prefabricated reinforced concrete lower prop 11
Vertical muscle and reserved stirrup 4, are reserved with back pouring hole 8 on the prefabricated reinforced concrete upper prop 10, on the prefabricated reinforced concrete
The lap segment of column 10 indulges muscle termination and is equipped with leveling nut 9, and the lap segment of the prefabricated reinforced concrete lower prop 11 is indulged muscle termination and set
There is an anchor plate 5, the prefabricated reinforced concrete upper prop 10 and prefabricated reinforced concrete lower prop 11 are indulged muscle by lap segment at two and handed over
Mistake overlap joint, lap segment indulge muscle and interlock after the tie hoop 6 of lap-joint, lap segment indulge reserved stirrup 4 and junction on the outside of muscle and fill out
The high-strength high ductility concrete filled is attached.
Assembling construction：Prefabricated post is carried out at the scene to be lifted into predetermined position, passes through leveling nut 9 or other leveling branch
Support carries out leveling to column, in lap segment Zong Jin lap-joints winding screw stirrup, and binds the reserved stirrup 4 being placed in advance in, so
After pour high-strength high ductility concrete, column is attached, as shown in figure 3, complete column（Beam）Connection.
In the present embodiment, the connection of column connects for 50% overlap joint.The sectional dimension of prefabricated reinforced concrete upper prop 10 is
500mm ' 500mm, the sectional dimension of prefabricated reinforced concrete lower prop 11 is 300mm ' 600mm；6 a diameter of 5mm of tie hoop, in advance
It is 25mm to stay 4 spacing of stirrup, bar diameter a diameter of 3 times circumferential；Anchor plate 5 is circular, thickness 15mm, a diameter of vertical muscle
3 times of 3.
Wherein, the component of high-strength high ductility concrete is cement, flyash, silicon ash, sand, PE fibers, steel fibre in this example
Peacekeeping water, wherein, by mass percentage, cement：Flyash：Silicon ash：Sand：Water=1：0.9：0.1：0.76：0.28；With cement,
The cumulative volume of flyash, silicon ash, Sha Heshui after mixing is that the volume volume of radix PE fibers is 1.5%, the volume of steel fibre
Volume is 0.5% ~ 1%.
Wherein：The maximum particle diameter of sand is 1.26mm；PE fibers are fine for the PA600 types of Shanghai Luo Yang Science and Technology Ltd.s production
Dimension, length 8mm, a diameter of 26 μm, tensile strength 1200MPa, elasticity modulus 30GPa；Steel fibre is public using Shanghai
Take charge of the buckle copper facing steel fibre of production, diameter 0.22 mm, length 13mm, tensile strength 2800MPa；Cement is P.O. 52.5R
Portland cement；Flyash is I grade of flyash；The loss on ignition of silicon ash used is 5%, dioxide-containing silica 88%, specific surface area
For 18000 m2/kg。
Embodiment 4：
Present embodiments provide a kind of high-strength high ductility concrete of assembled and exempt from sleeve connection method, use the high-strength Gao Yan of assembled
Property concrete exempt from sleeve connection structure, precast reinforced concrete beam is lifted into predetermined position, prefabricated reinforced concrete is left
Beam 2 and right 1 lower part of beam of prefabricated reinforced concrete are indulged muscle by lap segment and are staggeredly overlapped, then in lap-joint's winding screw stirrup 6,
Top sequentially passes through 3 connections of reserved stirrup 4 and stirrup by indulging muscle, and reserved stirrup is bound afterwards, is then poured high-strength
High ductility concrete realizes that assembled connects.
The present embodiment belongs to the common knowledge and known technology of the art without the part specifically described, herein not
Another one describes in detail.
The foregoing examples are only illustrative of the present invention, does not form the limitation to protection scope of the present invention, all
It is to be belonged to the same or similar design of the present invention within protection scope of the present invention.
Claims (9)
1. a kind of high-strength high ductility concrete of assembled exempts from sleeve connection structure, it is characterised in that：Including prefabricated reinforced concrete
Beam, the precast reinforced concrete beam include the left beam of prefabricated reinforced concrete（2）With the right beam of prefabricated reinforced concrete（1）, it is described
Precast reinforced concrete beam includes stirrup and the lap segment arranged on beam lower part indulges muscle, and the stirrup top is exposed, the lap segment
Reserved stirrup is equipped with the outside of vertical muscle（4）；
The left beam of prefabricated reinforced concrete（2）With the right beam of prefabricated reinforced concrete（1）Muscle is indulged by lap segment and is staggeredly taken in lower part
Connect, and lap segment indulges the muscle lap-joint that interlocks and is equipped with tie hoop（6）, the left beam of prefabricated reinforced concrete（2）With it is precast reinforced
The right beam of concrete（1）Top is by sequentially passing through reserved stirrup（4）With the vertical muscle of stirrup in precast reinforced concrete beam（3）Connection,
High-strength high ductility concrete is poured after connection after lap segment, pouring concrete behind precast reinforced concrete beam top.
2. the high-strength high ductility concrete of a kind of assembled according to claim 1 exempts from sleeve connection structure, it is characterised in that：
Further include prefabricated reinforced concrete upper prop（10）With prefabricated reinforced concrete lower prop（11）, the prefabricated reinforced concrete upper prop
（10）On be reserved with back pouring hole（8）, and lower face center is prefabricated with prefabricated core column（7）, the prefabricated core column（7）During for assembling
To prefabricated reinforced concrete upper prop（10）Support, the prefabricated reinforced concrete upper prop（10）With prefabricated reinforced concrete lower prop
（11）Corner is equipped with lap segment and indulges muscle, and each lap segment indulges muscle termination and is equipped with anchor plate（5）, on the prefabricated reinforced concrete
Column（10）With prefabricated reinforced concrete lower prop（11）By lap segment indulge muscle interlock overlap, lap segment indulges muscle and interlocks the spiral shell of lap-joint
Revolve stirrup（6）, lap segment indulge reserved stirrup on the outside of muscle（4）Connected with the high-strength high ductility concrete filled behind junction
Connect.
3. the high-strength high ductility concrete of a kind of assembled according to claim 1 exempts from sleeve connection structure, it is characterised in that：
Further include prefabricated reinforced concrete upper prop（10）With prefabricated reinforced concrete lower prop（11）, the prefabricated reinforced concrete upper prop
（10）With prefabricated reinforced concrete lower prop（11）Respectively fall from power scalariform and step-like, and opposite formed at two of two steps overlaps
Section, the prefabricated reinforced concrete upper prop（10）With prefabricated reinforced concrete lower prop（11）Up/down steps at be preset with overlap joint
The vertical muscle of section and reserved stirrup（4）, the prefabricated reinforced concrete upper prop（10）On be reserved with back pouring hole（8）, it is described precast reinforced
Concrete upper prop（10）Lap segment indulge muscle termination and be equipped with leveling nut（9）, the prefabricated reinforced concrete lower prop（11）Take
Connect section and indulge muscle termination and be equipped with anchor plate（5）, the prefabricated reinforced concrete upper prop（10）With prefabricated reinforced concrete lower prop（11）
By lap segment at two indulge muscle interlock overlap, lap segment indulges muscle and interlocks the tie hoop of lap-joint（6）, lap segment indulged on the outside of muscle
Reserved stirrup（4）It is attached with the high-strength high ductility concrete filled behind junction.
4. the high-strength high ductility concrete of a kind of assembled according to claim 2 exempts from sleeve connection structure, it is characterised in that：
The prefabricated core column（7）For prefabricated reinforced concrete upper prop（10）The 1/2-2/3 in section.
5. sleeve connection structure is exempted from according to a kind of high-strength high ductility concrete of assembled of claim 1-4 any one of them, its
It is characterized in that：The lap segment that the lap of splice that the lap segment indulges muscle is 5-15 times indulges muscle diameter.
6. sleeve connection structure is exempted from according to a kind of high-strength high ductility concrete of assembled of claim 1-4 any one of them, its
It is characterized in that：The anchor plate（5）For circular or square plate, thickness 10-20mm, diameter or the length of side are vertical muscle（3）2-3
Times.
7. sleeve connection structure is exempted from according to a kind of high-strength high ductility concrete of assembled of claim 1-4 any one of them, its
It is characterized in that：The tie hoop（6）A diameter of 4-8mm, reserves stirrup（4）Spacing is 20-30mm, circumferential a diameter of 2-4 times
Bar diameter.
8. sleeve connection structure is exempted from according to a kind of high-strength high ductility concrete of assembled of claim 1-4 any one of them, its
It is characterized in that：The component of the high-strength high ductility concrete is cement, flyash, silicon ash, sand, PE fibers, steel fibre and water, its
In, by mass percentage, cement：Flyash：Silicon ash：Sand：Water=1：0-0.3：0.1-0.4：0.76：0.22-0.32；With water
The cumulative volume of mud, flyash, silicon ash, Sha Heshui after mixing is radix, and the volume volume of PE fibers is 1%-1.5%, and steel is fine
The volume volume of dimension is 0.5%-2%.
9. a kind of high-strength high ductility concrete of assembled exempts from sleeve connection method, high using assembled as claimed in claim 1
Strong high ductility concrete exempts from sleeve connection structure, it is characterised in that：Precast reinforced concrete beam is lifted into predetermined position, will
The left beam of prefabricated reinforced concrete（2）With the right beam of prefabricated reinforced concrete（1）Lower part is indulged muscle by lap segment and is staggeredly overlapped, Ran Hou
Lap-joint's winding screw stirrup（6）, top sequentially passes through reserved stirrup by vertical muscle（4）With stirrup（3）Connection, afterwards to pre-
Stay stirrup to be bound, then pour high-strength high ductility concrete and realize that assembled connects.
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| CN201810067744.3A CN108019000A (en) | 2018-01-24 | 2018-01-24 | A kind of high-strength high ductility concrete of assembled exempts from sleeve connection structure and connection method |
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| CN108019000A true CN108019000A (en) | 2018-05-11 |
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Cited By (1)
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