CN108179808A - A kind of prefabricated beam column crimping joint strengthening stirrup construction and its construction method - Google Patents
A kind of prefabricated beam column crimping joint strengthening stirrup construction and its construction method Download PDFInfo
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- CN108179808A CN108179808A CN201810073798.0A CN201810073798A CN108179808A CN 108179808 A CN108179808 A CN 108179808A CN 201810073798 A CN201810073798 A CN 201810073798A CN 108179808 A CN108179808 A CN 108179808A
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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
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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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/22—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material with parts being prestressed
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/065—Light-weight girders, e.g. with precast parts
- E04C5/0653—Light-weight girders, e.g. with precast parts with precast parts
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
A kind of prefabricated beam column crimping joint strengthening stirrup construction and its construction method, including prefabricated post and composite beam, composite beam includes prefabricated lower part and cast-in-place top, prefabricated lower part is connect with prefabricated post by horizontal post-tensioned prestressed reinforcement beam pressure, cast-in-place top is embedded with bending resistance energy consumption reinforcing bar in horizontal beam, bending resistance energy consumption reinforcing bar includes leading portion, soap-free emulsion polymeization section and has adhesive section in beam, the both sides of soap-free emulsion polymeization section are additionally provided with reinforcement stirrup, strengthen stirrup and include the crotch that horizontal segment, the vertical section on top and the top 180 degree of vertical section of bottom are bent to form, soap-free emulsion polymeization section is stretched into crotch.The present invention, by adding reinforcement stirrup in soap-free emulsion polymeization section, increases the energy dissipation capacity of structure, can effectively prevent energy consumption reinforcing bar lateral deflection on the basis of existing crimping node；With good energy consumption ability and progressive collapse-resisting ability and easy for construction, while engineering cost is saved.
Description
Technical field
The invention belongs to assembling type node installing area, particularly a kind of Reinforced Hoop of precast concrete beam column crimping node
Muscle constructs and its construction method.
Background technology
Assembly concrete frame structure is the mode of construction that a kind of speed of application is fast, economic benefit and environmental benefit are good.
In terms of the stress and from the point of view of in terms of convenience for construction, the joint structure of fabricated construction is all the influence factor of key.At present, it fills
For bean column node with formula frame structure mostly using the cast-in-place way in node area, structural reinforcement is more, the reinforcing bar in node area avoid compared with
It is difficult.And the way wet construction heavy workload, construction efficiency be not high.The crimping way of another bean column node can be preferable
Disadvantage mentioned above is avoided, structurally utilizes the prestressing force steel hinge line through prefabricated post and precast beam that bean column node is crimped on one
It rises, construction efficiency is high, good in economic efficiency.But in actual mechanical process, there are still energy consumptions for here bean column node crimping way
The problem of reinforcing bar constrains deficiency in soap-free emulsion polymeization section, the too early lateral deflection of reinforcing bar of consuming energy, node ductility is bad.
Invention content
The object of the present invention is to provide a kind of prefabricated beam column crimping joint strengthening stirrup construction and its construction methods, to solve
The technical issues of bending resistance energy consumption reinforced binding is insufficient in existing beam column crimping node beam, too early lateral deflection.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of prefabricated beam column crimping joint strengthening stirrup construction, the prefabricated post of the concrete including connection and folding for armored concrete
Beam is closed, the composite beam includes prefabricated lower part and cast-in-place top, and the prefabricated lower part in advance should with prefabricated post by horizontal post-tensioning
Power tendon crimps, and the cast-in-place top is embedded with bending resistance energy consumption reinforcing bar in horizontal beam, resists in interior, the corresponding beam of the prefabricated post
The position of curved energy consumption reinforcing bar is embedded with anchor bar in horizontal column
Bending resistance energy consumption reinforcing bar includes leading portion, soap-free emulsion polymeization section and has adhesive section in the beam, and the leading portion stretches into column and passes through position
It is connect in the strong mechanical connecting joint of grade in column with anchor bar in column, the soap-free emulsion polymeization section and there is adhesive section to be respectively positioned on cast-in-place
Portion, soap-free emulsion polymeization section is opposite to have adhesive section closer to prefabricated post,
The both sides of the soap-free emulsion polymeization section are additionally provided with and constrain its lateral deformation, are embedded on cast-in-place along the length direction interval of composite beam
The reinforcement stirrup in portion, the top 180 degree bending strengthened stirrup and include the horizontal segment of bottom, the vertical section on top and vertical section
The crotch of formation, the horizontal segment are placed in the uper side surface of prefabricated lower part, and the vertical section is generally aligned in the same plane interior, institute with crotch
It states the vertical plane of soap-free emulsion polymeization section and stretches into crotch,
Width direction setting energy consumption steel bar layer of the bending resistance energy consumption reinforcing bar along composite beam, the layer include at least two intervals in the beam
Bending resistance energy consumption reinforcing bar in the beam of setting, the reinforcement stirrup identical with number of steel bars in energy consumption steel bar layer form vertical energy consumption steel bar layer
Stirrup strengthen face, the length direction that the stirrup strengthens face along composite beam is arranged at intervals with one group, on per pass stirrup reinforcement face
Reinforcement stirrup in beam bending resistance energy consumption reinforcing bar correspond.
The prefabricated lower part is embedded with the spaced one group of beam stirrup of length direction along composite beam, the beam stirrup
Strengthen the setting spacing and beam in face in the upside of cast-in-place top, banding the bending resistance energy consumption reinforcing bar in beam, the stirrup in upper portion
The setting spacing of stirrup is identical, with beam stirrup interlaced arrangement.
For the diameter for strengthening stirrup not less than 6mm, the length that the crotch is bent is straight not less than 6 times of reinforcement stirrup
Diameter, the height of the vertical section are not less than 20 times of reinforcement stirrup diameter, and the length of the horizontal segment is not less than 20 times of reinforcement
Stirrup diameter.
The reinforcement stirrup is plane inner bending, and horizontal segment, which is generally aligned in the same plane with vertical section and crotch in interior and beam, to be resisted
Curved energy consumption reinforcing bar is vertical,
The energy consumption steel bar layer is equipped with bending resistance energy consumption reinforcing bar in two beams, and the stirrup strengthens face and include twice strengthening stirrup, and two
Road is strengthened stirrup opening and is oppositely arranged inwardly, and twice strengthen the horizontal segment of stirrup against connection, and twice strengthen the vertical section of stirrup
It is located at the outside of bending resistance energy consumption reinforcing bar in two beams respectively.
To be bent outside plane, the plane of the vertical vertical section of horizontal segment and crotch consumes energy the reinforcement stirrup with bending resistance in beam
Parallel reinforced steel bar,
The energy consumption steel bar layer is equipped with bending resistance energy consumption reinforcing bar at least two beams, and all openings directions for strengthening stirrup are consistent, institute
It states stirrup and strengthens face including at least twice reinforcement stirrup, the vertical section that outermost twice strengthen stirrup is located at outermost two respectively
The outside of bending resistance energy consumption reinforcing bar in root beam.
The steel area of soap-free emulsion polymeization section constriction on the basis of former section, the decrement of necked-down section product are former sectional area
50%-90%, the end face outside of the strong mechanical connecting joint of grade and the flush of prefabricated post, the initial position of necking section is
Start the breech face until to soap-free emulsion polymeization section at the position diameter of 1-3 times of bar diameter of front end face apart from soap-free emulsion polymeization section.
The horizontal column prestressed pore passage for running through cylinder is provided in the prefabricated post, the corresponding position of the prefabricated lower part is equipped with
Run through the girder pre-stressed duct of beam body along its length, post-tensioning is integrally installed in the column prestressed pore passage and girder pre-stressed duct
Pre-stressing tendon, the outer end of the post-tensioned prestressed reinforcement beam are anchored at the back surface of prefabricated post by anchoring assembly.
It reserves and has the gap between the prefabricated post and prefabricated lower part, the width in gap is 20mm~35mm, is inoculated in gap
Grouting material.
The construction method of this prefabricated beam column crimping joint strengthening stirrup construction, construction procedure are as follows：
Step 1: making prefabricated lower part in factory, the girder pre-stressed duct in prefabricated lower part, pre-buried beam stirrup are processed；It makes pre-
Column processed processes column prestressed pore passage, in pre- buried column anchor bar and etc. strong mechanical connecting joint, and will etc. strong mechanical connecting joint
One end and column in anchor bar connect；Process the necking section of bending resistance energy consumption reinforcing bar in beam；Stirrup is strengthened in processing；
Step 2: prefabricated post and prefabricated lower part are lifted in place, installed using in the bottom of prefabricated lower part and prefabricated post connection position
The temporary support put is fixed temporarily；
Step 3: girder pre-stressed duct and column prestressed pore passage are aligned, post-tensioned prestressed reinforcement beam is then run through in duct
And tensioning；
Step 4: the top predeterminated position in prefabricated lower part is laid with bending resistance energy consumption reinforcing bar in beam, in beam before bending resistance energy consumption reinforcing bar
Section is with one end and waiting the other end of strong mechanical connecting joint to connect, then in the outside of soap-free emulsion polymeization section package plastic foil；
Step 5: strengthening face by stirrup in soap-free emulsion polymeization section is sequentially arranged reinforcement stirrup, it is first when it is plane inner bending to strengthen stirrup
Plane where will first stirrup being strengthened is parallel to bending resistance energy consumption reinforcing bar in beam and is inserted between energy consumption reinforcing bar, and crotch is sleeved on downwards to energy consumption
Then the top of reinforcing bar will strengthen stirrup and be rotated by 90 °, the crotch of reinforcement stirrup is made to catch on bending resistance energy consumption reinforcing bar in beam；Work as reinforcement
Stirrup is bends outside plane when, reinforcement stirrup is vertically fallen from the top down directly makes crotch catch on energy consumption reinforcing bar；
Step 6: pouring the concrete on cast-in-place top, construction construction is completed.
Compared with prior art the invention has the characteristics that and advantageous effect：
The present invention relates to a kind of reinforcement stirrup construction suitable for prefabricated beam column crimping node, this node precast concrete column and pre-
Pre-buried duct is equipped in beams of concrete processed, post-tensioned prestressing steel tendon makes precast concrete column and precast concrete beam pressure in duct
It is connected together.On the basis of existing crimping node, bending resistance energy consumption reinforcing bar, bending resistance consumption are set in the cast-in-place part of composite beam
Embedded bar connects in one end of energy reinforcing bar and column, and soap-free emulsion polymeization is set by way of wrapping up plastic foil in reinforcing bar is consumed energy in bending resistance
Section, while the side of soap-free emulsion polymeization section is equipped with the reinforcement stirrup for constraining its lateral deformation, increases the energy dissipation capacity of structure, can effectively prevent
Only energy consumption reinforcing bar lateral deflection；This mode is achieved ensure that the steady of energy consumption reinforcing bar soap-free emulsion polymeization section on the basis of beam stirrup is not increased
Qualitative, the anti-seismic performance of enhancing structure has good energy-dissipating property and progressive collapse-resisting ability, while cost-effective, construction
It is convenient.
Present invention is mainly used for assembly concrete frame and frame-shear walls to build, suitable for more high-rise public buildings,
Such as school, office building, apartment, hospital.
Description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the side cross-sectional view of the present invention.
Fig. 2 is dimensional structure diagram when soap-free emulsion polymeization section does not pour cast-in-place top also in embodiment one.
Fig. 3 is to strengthen stirrup and the side view arrangement schematic diagram of soap-free emulsion polymeization section in Fig. 2.
Fig. 4 is the side structure schematic view in Fig. 3.
Fig. 5 is the dimensional structure diagram of Fig. 3 or Fig. 4.
Fig. 6 is dimensional structure diagram when soap-free emulsion polymeization section does not pour cast-in-place top also in embodiment two.
Fig. 7 is to strengthen stirrup and the side view arrangement schematic diagram of soap-free emulsion polymeization section in Fig. 6.
Fig. 8 is the side structure schematic view in Fig. 7.
Fig. 9 is the dimensional structure diagram of Fig. 7 or Fig. 8.
Reference numeral：1- prefabricated posts, 11- columns prestressed pore passage, the prefabricated lower parts of 2-, the girder pre-stressed ducts of 21-, 3-
Cast-in-place top, 4- post-tensioned prestressed reinforcements beam, bending resistance energy consumption reinforcing bar, 51- leading portions, 52- soap-free emulsion polymeizations section, 53- have in 5- beams
In adhesive section, 6- columns the strong mechanical connecting joint such as anchor bar, 7-, 8- strengthen stirrup, 81- horizontal segments, 82- vertical sections,
83- crotches, 9- beam stirrups, 10- anchoring assemblies, 12- gaps, 13- grouting materials, 14- temporary supports, 15- plastic foils.
Specific embodiment
Embodiment one is referring to shown in Fig. 1-5, and a kind of prefabricated beam column crimping joint strengthening stirrup constructs, the coagulation including connection
Soil prefabricated post 1 and armored concrete composite beam, the composite beam include prefabricated lower part 2 and cast-in-place top 3, it is described it is prefabricated under
Portion 2 is crimped with prefabricated post by horizontal post-tensioned prestressed reinforcement beam 4, and the cast-in-place top 3 is embedded with bending resistance in horizontal beam
Consume energy reinforcing bar 5, and the position of bending resistance energy consumption reinforcing bar 5 is embedded with anchor bar 6 in horizontal column in the prefabricated post, in corresponding beam.
Bending resistance energy consumption reinforcing bar 5 includes leading portion 51, soap-free emulsion polymeization section 52 and has adhesive section 53 in the beam, and the leading portion 51 stretches into
In column and the strong mechanical connecting joint 7 of the grade by being located in column is connect with anchor bar in column 6, the soap-free emulsion polymeization section 52 with have it is viscous
Knot section 53 is respectively positioned on cast-in-place top 3, and soap-free emulsion polymeization section 52 is opposite to have adhesive section 53 closer to prefabricated post.Referring to described in Fig. 1, preceding segment length
It spends for d, soap-free emulsion polymeization segment length is e, and it is f to have adhesive section.
The steel area of the soap-free emulsion polymeization section 52 constriction on the basis of former section, the decrement of necked-down section product are former section
Long-pending 50%-90%, the end face outside of the strong mechanical connecting joint 7 of grade and the flush of prefabricated post, the length of necking section are
H, initial position start the tail until to soap-free emulsion polymeization section 52 for the position of 1-3 times of bar diameter of front end face apart from soap-free emulsion polymeization section 52
End face.Shown in Figure 1, the length of 1-3 times of bar diameter is g, i.e. e=g+h.
The horizontal column prestressed pore passage 11 for running through cylinder, the corresponding position of the prefabricated lower part 2 are provided in the prefabricated post 1
It is whole in the column prestressed pore passage 11 and girder pre-stressed duct 21 equipped with the girder pre-stressed duct 21 for running through beam body along its length
Body is installed with post-tensioned prestressed reinforcement beam 4, and the outer end of the post-tensioned prestressed reinforcement beam 4 is anchored at prefabricated by anchoring assembly 10
The back surface of column 1.
It is reserved between the prefabricated post 1 and prefabricated lower part 2 and has the gap 12, the width in gap is 20mm~35mm, in gap
It is inoculated with grouting material 13.
The both sides of the soap-free emulsion polymeization section 52 are additionally provided with and constrain its lateral deformation, are embedded in along the length direction interval of composite beam
The reinforcement stirrup 8 on cast-in-place top 3 is strengthened stirrup and is integrally bent by a reinforcing bar, the water strengthened stirrup 8 and include bottom
The crotch 83 that the top 180 degree of flat section 81, the vertical section on top 82 and vertical section 82 is bent to form, the horizontal segment 81 are placed in pre-
The uper side surface of lower part 2 processed, in the vertical section 82 and crotch 83 are generally aligned in the same plane, the vertical plane of the soap-free emulsion polymeization section 52
And it stretches into crotch 53.
Width direction setting energy consumption steel bar layer of the bending resistance energy consumption reinforcing bar 5 along composite beam, the layer include at least two in the beam
Bending resistance energy consumption reinforcing bar 5 in the spaced beam of root, the reinforcement stirrup 8 identical with number of steel bars in energy consumption steel bar layer form vertical consumption
The stirrup of energy steel bar layer strengthens face, and the length direction that the stirrup strengthens face along composite beam is arranged at intervals with one group, per pass stirrup
Reinforcement stirrup 8 on reinforcement face is corresponded with bending resistance energy consumption reinforcing bar 5 in beam.
The prefabricated lower part 2 is embedded with the spaced one group of beam stirrup 9 of length direction along composite beam, the beam stirrup
Strengthen the setting spacing in face in the upside of cast-in-place top 3, banding the bending resistance energy consumption reinforcing bar 5 in beam, the stirrup in 9 upper portion
And beam stirrup 9 interlaced arrangement identical with the setting spacing of beam stirrup 9.
The diameter for strengthening stirrup 8 is not less than 6 times of reinforcement stirrup not less than 6mm, the length a that the crotch 83 is bent
8 diameters, the height b of the vertical section 82 are not less than 20 times of 8 diameter of reinforcement stirrup, and the length c of the horizontal segment 81 is not less than
20 times of 8 diameter of reinforcement stirrup.
In the present embodiment, the reinforcement stirrup 8 is plane inner bending, and horizontal segment 81 is located at same with vertical section 82 and crotch 83
The reinforcing bar 5 that consumes energy in one plane, with bending resistance in beam is vertical.The energy consumption steel bar layer is equipped with bending resistance energy consumption reinforcing bar 5 in two beams, described
Stirrup strengthens face and includes twice reinforcement stirrup 8, and twice reinforcement stirrup 8 is open to be oppositely arranged inwardly.Two reinforcement pairs of cloth of stirrup
It puts, constrains bending resistance energy consumption reinforcing bar in two beams respectively.Twice strengthen the horizontal segment 81 of stirrup 8 against connection, and twice strengthen stirrup 8
Vertical section 82 be located at the outside of bending resistance energy consumption reinforcing bar 5 in two beams respectively.
The construction method of this prefabricated beam column crimping joint strengthening stirrup construction, construction procedure are as follows：
Step 1: making prefabricated lower part 2 in factory, the girder pre-stressed duct 21 in prefabricated lower part, pre-buried beam stirrup 9 are processed；System
Make prefabricated post, processing column prestressed pore passage 11, in pre- buried column anchor bar 6 and etc. strong mechanical connecting joint 7, and will etc. strong machinery
Anchor bar 6 connects in one end of jointing 7 and column；Process the necking section of bending resistance energy consumption reinforcing bar 5 in beam；Stirrup is strengthened in processing
8。
Step 2: prefabricated post 1 and prefabricated lower part 2 are lifted in place, connect using in the bottom of prefabricated lower part 2 with prefabricated post 1
The temporary support 14 for connecing position setting is fixed temporarily, perfusion grouting material 13 in gap 12.
Step 3: girder pre-stressed duct 21 and column prestressed pore passage 11 are aligned, then in advance should in duct through post-tensioning
Power tendon 4 and tensioning.
Step 4: the top predeterminated position in prefabricated lower part 2 is laid with bending resistance energy consumption reinforcing bar 5 in beam, bending resistance energy consumption steel in beam
The leading portion 51 of muscle 5 and one end simultaneously wait the other end of strong mechanical connecting joint 7 to connect, and then wrap up and moulding in the outside of soap-free emulsion polymeization section 52
Expect film 15.
Step 5: strengthening face by stirrup in soap-free emulsion polymeization section 52 is sequentially arranged reinforcement stirrup 8, it is curved in plane to strengthen stirrup
Folding, will strengthen 8 place plane of stirrup and is parallel in beam bending resistance energy consumption reinforcing bar 5 being inserted between energy consumption reinforcing bar first, by crotch 53 to
Under be sleeved on energy consumption reinforcing bar 1 top, then by strengthen stirrup 8 be rotated by 90 °, the crotch 83 of reinforcement stirrup 8 is made to catch on bending resistance in beam
Consume energy reinforcing bar 5.
Step 6: pouring the concrete on cast-in-place top 3, construction construction is completed.
Implement two referring to shown in Fig. 1,6-9, what is different from the first embodiment is that the reinforcement stirrup 8 is bends outside plane, water
Flat 81 vertical vertical section 82 of section and the plane of crotch 83, the reinforcing bar 5 that consumes energy with bending resistance in beam are parallel.The energy consumption steel bar layer is equipped with three
Bending resistance energy consumption reinforcing bar 5 in root beam, all openings for strengthening stirrups 8 towards unanimously, strengthen face and include three Reinforced Hoops by the stirrup
Muscle 8, outermost twice strengthen the vertical section 82 of stirrup 8 respectively positioned at the outside of bending resistance energy consumption reinforcing bar 5 in two beams of outermost.
Intermediate reinforcement stirrup 8 is arranged on the arbitrary side of bending resistance energy consumption reinforcing bar in intermediate beam.
The construction method of this prefabricated beam column crimping joint strengthening stirrup construction, construction procedure are as follows：
Step 1: making prefabricated lower part 2 in factory, the girder pre-stressed duct 21 in prefabricated lower part, pre-buried beam stirrup 9 are processed；System
Make prefabricated post, processing column prestressed pore passage 11, in pre- buried column anchor bar 6 and etc. strong mechanical connecting joint 7, and will etc. strong machinery
Anchor bar 6 connects in one end of jointing 7 and column；Process the necking section of bending resistance energy consumption reinforcing bar 5 in beam；Stirrup is strengthened in processing
8。
Step 2: prefabricated post 1 and prefabricated lower part 2 are lifted in place, connect using in the bottom of prefabricated lower part 2 with prefabricated post 1
The temporary support 14 for connecing position setting is fixed temporarily, perfusion grouting material 13 in gap 12.
Step 3: girder pre-stressed duct 21 and column prestressed pore passage 11 are aligned, then in advance should in duct through post-tensioning
Power tendon 4 and tensioning.
Step 4: the top predeterminated position in prefabricated lower part 2 is laid with bending resistance energy consumption reinforcing bar 5 in beam, bending resistance energy consumption steel in beam
The leading portion 51 of muscle 5 and one end simultaneously wait the other end of strong mechanical connecting joint 7 to connect, and then wrap up and moulding in the outside of soap-free emulsion polymeization section 52
Expect film 15.
Step 5: strengthening face by stirrup in soap-free emulsion polymeization section 52 is sequentially arranged reinforcement stirrup 8, reinforcement stirrup 8 is plane excurvation
Folding, reinforcement stirrup 8 is vertically fallen from the top down directly makes crotch 83 catch on energy consumption reinforcing bar 1.
Step 6: pouring the concrete on cast-in-place top 3, construction construction is completed.
Claims (9)
1. a kind of prefabricated beam column crimping joint strengthening stirrup construction, the prefabricated post of the concrete including connection（1）And reinforced concrete
The composite beam of soil, the composite beam include prefabricated lower part（2）With cast-in-place top（3）, the prefabricated lower part（2）Pass through with prefabricated post
Horizontal post-tensioned prestressed reinforcement beam（4）Crimping, the cast-in-place top（3）It is embedded with bending resistance energy consumption reinforcing bar in horizontal beam（5）,
In the prefabricated post, correspond to bending resistance energy consumption reinforcing bar in beam（5）Position be embedded with anchor bar in horizontal column（6）, feature
It is：
Bending resistance energy consumption reinforcing bar in the beam（5）Including leading portion（51）, soap-free emulsion polymeization section（52）And have adhesive section（53）, the leading portion
（51）It stretches into column and the strong mechanical connecting joint of grade by being located in column（7）With anchor bar in column（6）Connection, the nothing are glued
Tie section（52）And have adhesive section（53）It is respectively positioned on cast-in-place top（3）, soap-free emulsion polymeization section（52）It is opposite to have adhesive section（53）Closer to pre-
Column processed,
The soap-free emulsion polymeization section（52）Both sides be additionally provided with constrain its lateral deformation, be embedded in along the length direction interval of composite beam it is existing
Pour top（3）Reinforcement stirrup（8）, the reinforcement stirrup（8）Horizontal segment including bottom（81）, top vertical section（82）With
Vertical section（82）The crotch that is bent to form of top 180 degree（83）, the horizontal segment（81）It is placed in prefabricated lower part（2）Upside table
Face, the vertical section（82）With crotch（83）In being generally aligned in the same plane, the soap-free emulsion polymeization section（52）The vertical plane simultaneously stretches into curved
Hook（53）It is interior,
Bending resistance energy consumption reinforcing bar in the beam（5）Along the width direction setting energy consumption steel bar layer of composite beam, which includes at least two
Bending resistance energy consumption reinforcing bar in spaced beam（5）, with the identical reinforcement stirrup of number of steel bars in energy consumption steel bar layer（8）It is formed vertical
The stirrup for the steel bar layer that consumes energy strengthens face, and the length direction that the stirrup strengthens face along composite beam is arranged at intervals with one group, per pass hoop
Reinforcement stirrup on muscle reinforcement face（8）Consume energy reinforcing bar with bending resistance in beam（5）It corresponds.
2. prefabricated beam column crimping joint strengthening stirrup construction according to claim 1, it is characterised in that：The prefabricated lower part
（2）It is embedded with the spaced one group of beam stirrup of length direction along composite beam（9）, the beam stirrup（9）Upper portion in
Cast-in-place top（3）, banding in beam bending resistance consume energy reinforcing bar（5）Upside, the stirrup strengthens the setting spacing and beam stirrup in face
（9）Setting spacing is identical and beam stirrup（9）Interlaced arrangement.
3. prefabricated beam column crimping joint strengthening stirrup construction according to claim 1 or 2, it is characterised in that：The reinforcement
Stirrup（8）Diameter not less than 6mm, the crotch（83）The length of bending is not less than 6 times of reinforcement stirrup（8）Diameter, it is described
Vertical section（82）Height be not less than 20 times of reinforcement stirrup（8）Diameter, the horizontal segment（81）Length not less than 20 times
Strengthen stirrup（8）Diameter.
4. prefabricated beam column crimping joint strengthening stirrup construction according to claim 3, it is characterised in that：The reinforcement stirrup
（8）For plane inner bending, horizontal segment（81）With vertical section（82）And crotch（83）It consumes energy in being generally aligned in the same plane, with bending resistance in beam
Reinforcing bar（5）Vertically,
The energy consumption steel bar layer is equipped with bending resistance energy consumption reinforcing bar in two beams（5）, the stirrup reinforcement face includes twice and strengthens stirrup
（8）, twice reinforcement stirrup（8）Opening is oppositely arranged inwardly, and twice strengthen stirrup（8）Horizontal segment（81）Against connection, twice
Strengthen stirrup（8）Vertical section（82）It is located at bending resistance energy consumption reinforcing bar in two beams respectively（5）Outside.
5. prefabricated beam column crimping joint strengthening stirrup construction according to claim 3, it is characterised in that：The reinforcement stirrup
（8）To be bent outside plane, horizontal segment（81）Perpendicular to vertical section（82）And crotch（83）Plane, with beam in bending resistance energy consumption reinforcing bar
（5）It is parallel,
The energy consumption steel bar layer is equipped with bending resistance energy consumption reinforcing bar at least two beams（5）, all reinforcement stirrups（8）Opening towards one
It causes, the stirrup strengthens face and includes at least twice reinforcement stirrup（8）, outermost twice reinforcement stirrup（8）Vertical section（82）
It is located at bending resistance energy consumption reinforcing bar in two beams of outermost respectively（5）Outside.
6. prefabricated beam column crimping joint strengthening stirrup construction according to claim 4 or 5, it is characterised in that：The nothing is glued
Tie section（52）Steel area on the basis of former section constriction, 50%-90% of the necked-down section product decrement for former sectional area, institute
The strong mechanical connecting joint such as state（7）End face outside and prefabricated post flush, the initial position of necking section is distance without viscous
Tie section（52）1-3 times of bar diameter of front end face position at start until to soap-free emulsion polymeization section（52）Breech face.
7. prefabricated beam column crimping joint strengthening stirrup construction according to claim 6, it is characterised in that：The prefabricated post
（1）On be provided with the horizontal column prestressed pore passage for running through cylinder（11）, the prefabricated lower part（2）Corresponding position be equipped with along length side
To through the girder pre-stressed duct of beam body（21）, the column prestressed pore passage（11）With girder pre-stressed duct（21）Interior entirety is installed with
Post-tensioned prestressed reinforcement beam（4）, the post-tensioned prestressed reinforcement beam（4）Outer end pass through anchoring assembly（10）It is anchored at prefabricated
Column（1）Back surface.
8. prefabricated beam column crimping joint strengthening stirrup construction according to claim 7, it is characterised in that：The prefabricated post
（1）With prefabricated lower part（2）Between reserve have the gap（12）, the width in gap is 20mm~35mm, and grouting material is inoculated in gap
（13）.
9. a kind of construction method of prefabricated beam column crimping joint strengthening stirrup construction according to claim 8, feature exist
In construction procedure is as follows：
Step 1: make prefabricated lower part in factory（2）, process the girder pre-stressed duct in prefabricated lower part（21）, pre-buried beam stirrup
（9）；Prefabricated post is made, processes column prestressed pore passage（11）, anchor bar in pre- buried column（6）With etc. strong mechanical connecting joint（7）,
And the strong mechanical connecting joint such as general（7）One end and column in anchor bar（6）Connection；Process bending resistance energy consumption reinforcing bar in beam（5）'s
Necking section；Stirrup is strengthened in processing（8）；
Step 2: by prefabricated post（1）With prefabricated lower part（2）Lifting is in place, using in prefabricated lower part（2）Bottom and prefabricated post
（1）The temporary support of link position setting（14）It is fixed temporarily, gap（12）Interior perfusion grouting material（13）；
Step 3: by girder pre-stressed duct（21）With column prestressed pore passage（11）Then alignment in advance should in duct through post-tensioning
Power tendon（4）And tensioning；
Step 4: in prefabricated lower part（2）Top predeterminated position be laid with bending resistance energy consumption reinforcing bar in beam（5）, bending resistance energy consumption steel in beam
Muscle（5）Leading portion（51）With one end and waiting strong mechanical connecting joint（7）The other end connection, then in soap-free emulsion polymeization section（52）It is outer
Wrap up plastic foil in side（15）；
Step 5: in soap-free emulsion polymeization section（52）Strengthen face by stirrup and be sequentially arranged reinforcement stirrup（8）, it is curved in plane when strengthening stirrup
During folding, stirrup will be strengthened first（8）Place plane is parallel to bending resistance energy consumption reinforcing bar in beam（5）It is inserted between energy consumption reinforcing bar, it will be curved
Hook（53）It is sleeved on energy consumption reinforcing bar downwards（1）Top, then will strengthen stirrup（8）It is rotated by 90 °, makes reinforcement stirrup（8）Crotch
（83）Catch on bending resistance energy consumption reinforcing bar in beam（5）；When reinforcement stirrup（8）During to be bent outside plane, stirrup will be strengthened（8）From the top down
Vertical fall directly makes crotch（83）Catch on energy consumption reinforcing bar（1）；
Step 6: pour cast-in-place top（3）Concrete, complete construction construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810073798.0A CN108179808A (en) | 2018-01-25 | 2018-01-25 | A kind of prefabricated beam column crimping joint strengthening stirrup construction and its construction method |
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|---|---|---|---|
| CN201810073798.0A CN108179808A (en) | 2018-01-25 | 2018-01-25 | A kind of prefabricated beam column crimping joint strengthening stirrup construction and its construction method |
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| CN108179808A true CN108179808A (en) | 2018-06-19 |
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| CN110258793A (en) * | 2019-06-03 | 2019-09-20 | 中国建筑股份有限公司 | A kind of prefabricated beam column seam construction and its construction method being socketed bellows |
| CN110453778A (en) * | 2019-07-24 | 2019-11-15 | 中国建筑股份有限公司 | A kind of precast prestressed bean column node anti-torsional structure and installation method |
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