CN108867858A - Prestressing force assembled beam-column node beam-ends welds stirrup construction and installation method - Google Patents
Prestressing force assembled beam-column node beam-ends welds stirrup construction and installation method Download PDFInfo
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- CN108867858A CN108867858A CN201810586390.3A CN201810586390A CN108867858A CN 108867858 A CN108867858 A CN 108867858A CN 201810586390 A CN201810586390 A CN 201810586390A CN 108867858 A CN108867858 A CN 108867858A
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- overhanging
- overlapping back
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 11
- 238000009434 installation Methods 0.000 title claims description 8
- 239000011178 precast concrete Substances 0.000 claims abstract description 139
- 210000003205 muscle Anatomy 0.000 claims abstract description 109
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 239000002131 composite material Substances 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 239000011148 porous material Substances 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 6
- 244000046052 Phaseolus vulgaris Species 0.000 description 6
- 238000002788 crimping Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The present invention is that prestressing force assembled beam-column node beam-ends welds stirrup construction, it include that precast concrete column, precast concrete beam and overlapping back indulge muscle, overlapping back indulges muscle and passes through the steel bar connector being embedded in precast concrete column, and then connect with anchor bar in the column in precast concrete column is embedded in.Precast concrete beam includes that muscle is indulged at precast concrete beam body, common overhanging closed stirrup, the overhanging U-stirrups of beam-ends and composite beam bottom, muscle is indulged together with the vertical muscle hoop of overlapping back in composite beam bottom by common overhanging closed stirrup, two open ends of the overhanging U-stirrups of beam-ends mutually overlap, single-sided welding forms closed stirrup, and then overlapping back is indulged muscle together with the vertical muscle hoop in composite beam bottom.The connection that the construction indulges muscle and steel bar connector to overlapping back provides sufficient operation adjustment space, ensure that reinforcing bar quality of connection well.Overlapping back is effectively prevented simultaneously indulges muscle lateral deflection, the anti-seismic performance of enhancing structure.
Description
Technical field
The invention belongs to the beam column mounting technique fields of prefabricated concrete structure more particularly to prefabricated beam column to crimp node
Steel bar connecting structure.
Background technique
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.Currently, dress
The way that bean column node with formula frame structure mostly uses node area cast-in-place, the way need to handle keeping away for node area beam column reinforcing bar
Make problem, wet construction heavy workload, construction efficiency not high.
The crimping way of another bean column node can preferably avoid disadvantage mentioned above, structurally utilize through prefabricated
Bean column node is crimped together by the prestressing force steel hinge line of column and precast beam, is avoided the conflict of node area reinforcing bar, is avoided simultaneously
A large amount of concrete pouring practice, construction efficiency is high, good in economic efficiency.But this prefabricated beam column crimping node is in reality
There are still following problems in operating process：The connection of bean column node reinforcing bar uses steel bar connector, due to precast beam encrypted area range
Interior overhanging closed stirrup is closer apart from steel bar connector, often will limit the operating space of connection reinforcing bar, it cannot be guaranteed that reinforcing bar
It is screwed into the depth of adapter or even can not be screwed at all, directly influence the quality of reinforcing bar connection and the safety of frame structure.Separately
Outside, in order to solve the problems, such as beam column node area reinforcing bar evacuation it is more difficult, bean column node is crimped together using deformed bar, but
It is that there are the too early lateral deflection of deformed bar, the bad problems of ductility of joint for this crimping mode.
Summary of the invention
The purpose of the present invention is to provide prestressing force assembled beam-column node beam-ends to weld stirrup construction and installation method, with
The overhanging closed stirrup solved within the scope of precast beam encrypted area in the prior art is closer apart from steel bar connector, often the company of will limit
The operating space of reinforcing bar is connect, it cannot be guaranteed that reinforcing bar is screwed into the depth of adapter or even can not be screwed at all, influences reinforcing bar connection
The safety of quality and frame structure；Lead to the too early lateral deflection of deformed bar in such a way that steel strand wires are by bean column node crimping, saves
The bad technical problem of point ductility.
In order to solve the above technical problem, the present invention provides a kind of prestressing force assembled beam-column node beam-ends to weld stirrup structure
It makes, it is characterised in that：
It include precast concrete column and precast concrete composite beam, the precast concrete composite beam includes precast concrete beam
With beam last layer, the precast concrete beam is connected in precast concrete column by horizontally disposed post-tensioned prestressing beam, institute
It states and is embedded with the vertical muscle of overlapping back at the top of beam last layer, the vertical muscle of the overlapping back, which passes through, to be embedded in precast concrete column
Steel bar connector, and then connect with anchor bar in the column in precast concrete column is embedded in；
The precast concrete beam includes the common overhanging closing of precast concrete beam body, upper end stretching precast concrete beam body
Muscle is indulged at stirrup and the overhanging U-stirrups of beam-ends, and the composite beam bottom being embedded in precast concrete beam body, described common overhanging
Muscle is indulged together with the vertical muscle hoop of overlapping back in composite beam bottom by closed stirrup, two open ends of the overhanging U-stirrups of beam-ends
It mutually overlaps, single-sided welding formation closed stirrup, and then overlapping back is indulged into muscle together with the vertical muscle hoop in composite beam bottom.
Preferably, the overlapping back indulges muscle and composite beam bottom is indulged muscle and is correspondingly arranged, and the overhanging U-stirrups of beam-ends include will
The overlapping back of outer ring indulges beam-ends overhanging opening outer ring stirrup of the muscle together with the vertical muscle hoop in the composite beam bottom of outer ring, and will be interior
The overlapping back of circle indulges beam-ends overhanging opening inner ring stirrup of the muscle together with the vertical muscle hoop in the composite beam bottom of inner ring.
Preferably, at the mid-side node of precast concrete column and precast concrete beam, precast concrete column is side column, prefabricated mixed
Solidifying soil beam body is elongated along its length to be provided with girder pre-stressed duct, and being horizontally disposed in precast concrete column has and girder pre-stressed hole
The column prestressed pore passage of road cooperation, post-tensioned prestressing beam sequentially passes through girder pre-stressed duct and column prestressed pore passage, and then passes through
The outer anchor head of presstressed reinforcing steel is fixed.
Preferably, at the interior joint of precast concrete column and precast concrete beam, precast concrete column is center pillar, prefabricated mixed
Solidifying soil beam body is elongated along its length to be provided with girder pre-stressed duct, and being horizontally disposed in precast concrete column has and girder pre-stressed hole
The column prestressed pore passage of road cooperation, post-tensioned prestressing beam are through in girder pre-stressed duct and column prestressed pore passage.
Preferably, overlapping back indulges muscle and is additionally provided with casing close to one end of precast concrete column, and the overlapping back is vertical
Muscle sequentially passes through casing and the steel bar connector that is embedded in precast concrete column, so be embedded in precast concrete column
Anchor bar connects in column.
Preferably, it includes necking section and non-necking section that the overlapping back in described sleeve pipe, which indulges muscle, and non-necking section is close to steel
One section of muscle adapter, necking section are one section far from steel bar connector, and the length of the non-necking section is that overlapping back indulges muscle
1~3 times of diameter, the sectional area of the necking section is 50%~90% for overlapping back and indulging muscle sectional area.
Preferably, the length of described sleeve pipe is 4~23 times for overlapping the diameter that back indulges muscle.
Preferably, the seam crossing between the precast concrete beam body and precast concrete column has filled fiber injection material
Material.
Preferably, the bottom of the precast concrete beam body and the junction of precast concrete column are provided with temporary support.
In addition, the present invention also provides the installation method of above-mentioned prestressing force assembled beam-column node beam-ends welding stirrup construction,
Characterized by the following steps
Step 1：Precast concrete column, precast concrete beam body and overlapping back, which are made, in factory indulges muscle, precast concrete beam body
Girder pre-stressed duct is inside reserved, reserves column prestressed pore passage in precast concrete column, anchoring in pre- buried column in precast concrete column
Reinforcing bar and steel bar connector；
Step 2：Before the factory of precast concrete beam body, overlapping back is indulged into muscle and the overhanging U-stirrups of beam-ends pre-fix, according to steel
The end that the model of muscle adapter indulges muscle to overlapping back carries out thread processing, and overlapping back indulges the end retraction of muscle；
Step 3：Temporary support is installed in precast concrete column, adjusts the verticality of precast concrete column, by precast concrete
Beam body is lifted to temporary support, fixed precast concrete beam body；
Step 4：Post-tensioned prestressing beam is laid in girder pre-stressed duct and column prestressed pore passage, in precast concrete beam body and
Seam crossing between precast concrete column fills fiber grouting material, and tensioning post-tensioned prestressing beam is fixed；
Step 5：Loosen overlapping back indulge muscle, overlapping back indulge muscle one end protrude into steel bar connector and with anchor bar in column
Be connected and fixed, when overlap back indulge muscle and steel bar connector to it is not upper when, finely tune the overhanging U-stirrups of beam-ends, make to overlap back vertical
Muscle and steel bar connector are connected and fixed, and meet the connection depth requirements of steel bar connector；
Step 6：Two open ends of the overhanging U-stirrups of beam-ends are mutually overlapped, single-sided welding forms closed stirrup；
Step 7：Casting concrete forms beam last layer, completes construction construction.
Compared with prior art, it the features of the present invention and has the beneficial effect that：
（1）Prestressing force assembled beam-column node beam-ends welding stirrup construction of the invention is using the overhanging U-stirrups of beam-ends and commonly
Overhanging closed stirrup combines, the close overhanging U-stirrups of the pre-buried beam-ends of prefabricated styletable above precast beam, far from prefabricated styletable
Pre-buried common overhanging closed stirrup indulges the company of muscle and steel bar connector to overlapping back by adjusting the overhanging U-stirrups of beam-ends
It connects and provides sufficient operation adjustment space, ensure that reinforcing bar quality of connection well.
（2）It stretches one end that overlapping back indulges muscle in prestressing force assembled beam-column node beam-ends welding stirrup construction of the invention
Enter steel bar connector, and connect with anchor bar in column, overlapping back is indulged muscle and is cased with outside one end of steel bar connector
Casing, it includes necking section and non-necking section that the overlapping back in casing, which indulges muscle, effectively prevents overlapping back and indulges muscle lateral deflection, enhancing
The anti-seismic performance of structure.
（3）Prestressing force assembled beam-column node beam-ends welding stirrup structural texture of the invention is simple, easy to process, installation
Efficiently, there is good shock resistance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that prestressing force assembled beam-column node beam-ends welds stirrup construction.
Fig. 2 is the structural schematic diagram of precast concrete column.
Fig. 3 is the connection schematic diagram of precast concrete beam and reinforcing bar.
Fig. 4 is diagrammatic cross-section of the precast concrete beam close to precast concrete styletable.
Fig. 5 is diagrammatic cross-section of the precast concrete beam far from precast concrete styletable.
Fig. 6 is the first connection schematic diagram of precast concrete column and precast concrete composite beam at mid-side node.
Fig. 7 is the first connection schematic diagram of precast concrete column and precast concrete composite beam at interior joint.
Fig. 8 is second of connection schematic diagram of precast concrete column and precast concrete composite beam at mid-side node.
Fig. 9 is second of connection schematic diagram of precast concrete column and precast concrete composite beam at interior joint.
Figure 10 is the enlarged diagram of part A in Fig. 8 or Fig. 9.
Appended drawing reference：1- precast concrete column, 11- steel bar connector, anchor bar, 21- precast concrete in 12- column
Beam, 212- commonly overhanging closed stirrup, the overhanging U-stirrups of 213- beam-ends, the overhanging opening outer ring stirrup of 2131- beam-ends, 2132-
The overhanging opening inner ring stirrup of beam-ends, 22- beam last layer, 23- overlapping back indulge muscle, 25- casing, 261- necking section, the non-neck of 262-
Contracting section, 3- temporary support, 4- post-tensioned prestressing beam, 41- column prestressed pore passage, the girder pre-stressed duct 42-, outside 43- presstressed reinforcing steel
Muscle is indulged at anchor head, 5- fiber grouting material, 6- composite beam bottom.
Specific embodiment
For realize the present invention technological means, character of innovation, reach purpose and effect is easy to understand, below to
Invention further illustrates.
The embodiment recorded herein is specific specific embodiment of the invention, for illustrating design of the invention,
Be it is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also based on the claim of this application book and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include using any obvious to making for the embodiment recorded herein
The technical solution of substitutions and modifications.
As shown in Fig. 1~5, it includes precast concrete column that prestressing force assembled beam-column node beam-ends, which welds stirrup construction,
（1）With precast concrete composite beam, precast concrete composite beam includes precast concrete beam（21）With beam last layer（22）, prefabricated
Beams of concrete（21）Pass through horizontally disposed post-tensioned prestressing beam（4）It is connected to precast concrete column（1）On, beam last layer（22）
Top be embedded with overlapping back indulge muscle（23）, the vertical muscle of overlapping back（23）Across being embedded in precast concrete column（1）Interior steel
Muscle adapter（11）, and then be embedded in precast concrete column（1）Anchor bar in interior column（12）Connection.Precast concrete beam
The bottom of body and precast concrete column（1）Junction be provided with temporary support（3）.
Precast concrete beam（21）Include precast concrete beam body, upper end stretch out precast concrete beam body it is common overhanging
Closed stirrup（212）With the overhanging U-stirrups of beam-ends（213）, and the vertical muscle in composite beam bottom being embedded in precast concrete beam body
（6）, common overhanging closed stirrup（212）Muscle is indulged at composite beam bottom（6）Muscle is indulged with overlapping back（23）Together, beam-ends is overhanging for hoop
U-stirrups（213）Two open ends mutually overlap, single-sided welding formed closed stirrup, and then will overlapping back indulge muscle
（23）Muscle is indulged with composite beam bottom（6）Hoop is together.Open end mutually staggers overlap joint in same absolute altitude, and the lap of splice is not less than
It overlaps back and indulges muscle（23）10 times of diameter.The overhanging U-stirrups of beam-ends（213）Setting is leaned on apart from precast concrete beam body
Nearly precast concrete column（1）In the range of the 300~500mm of one end, remaining position is using common overhanging closed stirrup（212）.
It overlaps back and indulges muscle（23）Muscle is indulged with composite beam bottom（6）It is correspondingly arranged, the overhanging U-stirrups of beam-ends（213）Including inciting somebody to action
The overlapping back of outer ring indulges muscle（23）Muscle is indulged with the composite beam bottom of outer ring（6）The overhanging opening outer ring stirrup of beam-ends of hoop together
（2131）, and by the overlapping back of inner ring indulge muscle（23）Muscle is indulged with the composite beam bottom of inner ring（6）The beam-ends of hoop together is overhanging
Be open inner ring stirrup（2132）.Every group of common overhanging closed stirrup（212）Including the overlapping back of outer ring is indulged muscle（23）With it is outer
Indulge muscle in the composite beam bottom of circle（6）The common overhanging closing outer ring stirrup of hoop together, and the overlapping back of inner ring is indulged into muscle
（23）Muscle is indulged with the composite beam bottom of inner ring（6）The common overhanging closing inner ring stirrup of hoop together.
As shown in fig. 6, precast concrete column（1）And precast concrete beam（21）Mid-side node at, precast concrete column（1）
For side column, precast concrete beam body is elongated along its length to be provided with girder pre-stressed duct（42）, precast concrete column（1）Interior water
It is flat to be provided with and girder pre-stressed duct（42）The column prestressed pore passage of cooperation（41）, the column prestress hole that is not arranged on the same straight line
Road（41）It is staggered in column short transverse, post-tensioned prestressing beam（4）Sequentially pass through girder pre-stressed duct（42）It is answered in advance with column
Power duct（41）, and then pass through the outer anchor head of presstressed reinforcing steel（43）It is fixed.Precast concrete column（1）Between precast concrete beam body
There are the seam of 10~30mm, seam crossing has filled fiber grouting material（5）.
As shown in fig. 7, precast concrete column（1）And precast concrete beam（21）Interior joint at, precast concrete column（1）
For center pillar, precast concrete beam body is elongated along its length to be provided with girder pre-stressed duct（42）, precast concrete column（1）Interior water
It is flat to be provided with and girder pre-stressed duct（42）The column prestressed pore passage of cooperation（41）, the column prestress hole that is not arranged on the same straight line
Road（41）It is staggered in column short transverse, post-tensioned prestressing beam（4）It is through girder pre-stressed duct（42）With column prestress hole
Road（41）In.Precast concrete column（1）There are the seam of 10~30mm between precast concrete beam body, seam crossing has filled fibre
Tie up grouting material（5）.
As shown in FIG. 8 and 9, it is further preferred that overlapping back indulges muscle（23）Close to precast concrete column（1）One end also set
It is equipped with casing（25）, the vertical muscle of overlapping back（23）Sequentially pass through casing（25）Be embedded in precast concrete column（1）Interior reinforcing bar
Adapter（11）, and then be embedded in precast concrete column（1）Anchor bar in interior column（12）Connection.Casing（25）Length
Muscle is indulged for overlapping back（23）4~23 times of diameter.The overhanging U-stirrups of beam-ends（213）Hoop is in casing（25）Outside, to guarantee
The section overlaps back and indulges muscle（23）Stability, the anti-seismic performance of enhancing structure.
As shown in Figure 10, casing（25）Interior overlapping back indulges muscle（23）Including necking section（261）With non-necking section
（262）, non-necking section（262）For close to steel bar connector（11）One section, necking section（261）For far from steel bar connector（11）
One section, obtained by section weakening process.Non- necking section（262）Length be overlapping back indulge muscle（23）Diameter 1~3
Times, necking section（261）Sectional area be overlapping back indulge muscle（23）The 50%~90% of sectional area.
Above-mentioned prestressing force assembled beam-column node beam-ends welds the installation method that stirrup constructs：
Step 1：Precast concrete column is made in factory（1）, precast concrete beam body and overlapping back indulge muscle（23）, prefabricated mixed
Girder pre-stressed duct is reserved in solidifying soil beam body（42）, in precast concrete column（1）Reserved column prestressed pore passage（41）, concrete
Earth pillar（1）Anchor bar in interior pre- buried column（12）And steel bar connector（11）.
Step 2：Before the factory of precast concrete beam body, overlapping back is indulged into muscle（23）With the overhanging U-stirrups of beam-ends（213）
It pre-fixes, according to steel bar connector（11）Model to overlapping back indulge muscle（23）End carry out thread processing, overlap back
Vertical muscle（23）End retraction.
Step 3：In precast concrete column（1）Upper installation temporary support（3）, by adjusting precast concrete column（1）It is oblique
Support adjusts precast concrete column（1）Verticality, precast concrete beam body is lifted to temporary support（3）On, it is fixed prefabricated mixed
Solidifying soil beam body.
Step 4：In girder pre-stressed duct（42）With column prestressed pore passage（41）Interior laying post-tensioned prestressing beam（4）, pre-
Concrete beam body processed and precast concrete column（1）Between seam crossing fill fiber grouting material（5）, tensioning post-tensioned prestressing beam
（4）It is fixed.
Step 5：Loosen overlapping back and indulges muscle（23）, the vertical muscle of overlapping back（23）One end protrude into steel bar connector（11）
And with anchor bar in column（12）It is connected and fixed, when overlapping back indulges muscle（23）With steel bar connector（11）When to not going up, fine tuning
The overhanging U-stirrups of beam-ends（213）, make to overlap the vertical muscle of back（23）And steel bar connector（11）It is connected and fixed, meets steel bar joining
Device（11）Connection depth requirements.
Step 6：By the overhanging U-stirrups of beam-ends（213）Two open ends mutually overlap, single-sided welding formed closing ring
Muscle, open end mutually staggers overlap joint in same absolute altitude, and the lap of splice indulges muscle not less than overlapping back（23）Diameter 10
Times.
Step 7：Casting concrete forms beam last layer（22）, complete construction construction.
The above various embodiments is only used for that the present invention is explained, and is not construed as limiting the scope of the claims restriction,
Those skilled in the art's other alternative means that description is contemplated that according to the present invention, should all be in the claims in the present invention
Protection scope within.
Claims (10)
1. prestressing force assembled beam-column node beam-ends welds stirrup construction, it is characterised in that：It include precast concrete column and pre-
Concrete composite beam processed, the precast concrete composite beam include precast concrete beam and beam last layer, the precast concrete
Beam is connected in precast concrete column by horizontally disposed post-tensioned prestressing beam, is embedded with overlapping at the top of the beam last layer
Back indulges muscle, and the overlapping back indulges muscle and passes through the steel bar connector being embedded in precast concrete column, and then pre- with being embedded in
Anchor bar connects in column in concrete column processed；
The precast concrete beam includes the common overhanging closing of precast concrete beam body, upper end stretching precast concrete beam body
Muscle is indulged at stirrup and the overhanging U-stirrups of beam-ends, and the composite beam bottom being embedded in precast concrete beam body, described common overhanging
Muscle is indulged together with the vertical muscle hoop of overlapping back in composite beam bottom by closed stirrup, two open ends of the overhanging U-stirrups of beam-ends
It mutually overlaps, single-sided welding formation closed stirrup, and then overlapping back is indulged into muscle together with the vertical muscle hoop in composite beam bottom.
2. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 1, it is characterised in that：It is described
Overlapping back, which indulges muscle and composite beam bottom and indulges muscle, to be correspondingly arranged, the overhanging U-stirrups of beam-ends include the overlapping back of outer ring is indulged muscle and
The overhanging opening outer ring stirrup of the beam-ends of muscle hoop together is indulged at the composite beam bottom of outer ring, and by the vertical muscle of the overlapping back of inner ring and interior
Indulge the overhanging opening inner ring stirrup of the beam-ends of muscle hoop together in the composite beam bottom of circle.
3. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 2, it is characterised in that：It is prefabricated
At the mid-side node of concrete column and precast concrete beam, precast concrete column is side column, and precast concrete beam body is along its length
It is elongated to be provided with girder pre-stressed duct, the column prestress hole having with the cooperation of girder pre-stressed duct is horizontally disposed in precast concrete column
Road, post-tensioned prestressing beam sequentially passes through girder pre-stressed duct and column prestressed pore passage, and then is fixed by the outer anchor head of presstressed reinforcing steel.
4. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 2, it is characterised in that：It is prefabricated
At the interior joint of concrete column and precast concrete beam, precast concrete column is center pillar, and precast concrete beam body is along its length
It is elongated to be provided with girder pre-stressed duct, the column prestress hole having with the cooperation of girder pre-stressed duct is horizontally disposed in precast concrete column
Road, post-tensioned prestressing beam are through in girder pre-stressed duct and column prestressed pore passage.
5. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 3 or 4, it is characterised in that：
Overlapping back indulges muscle and is additionally provided with casing close to one end of precast concrete column, the overlapping back indulge muscle sequentially pass through casing with
The steel bar connector being embedded in precast concrete column, and then connect with anchor bar in the column in precast concrete column is embedded in
It connects.
6. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 5, it is characterised in that：It is described
It includes necking section and non-necking section that overlapping back in casing, which indulges muscle, and non-necking section is one section of close steel bar connector, constriction
Section is one section far from steel bar connector, and the length of the non-necking section is 1~3 times for overlapping the diameter that back indulges muscle, described
The sectional area of necking section is 50%~90% for overlapping back and indulging muscle sectional area.
7. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 6, it is characterised in that：It is described
The length of casing is 4~23 times for overlapping the diameter that back indulges muscle.
8. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 7, it is characterised in that：It is described
Seam crossing between precast concrete beam body and precast concrete column has filled fiber grouting material.
9. prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 8, it is characterised in that：It is described
The bottom of precast concrete beam body and the junction of precast concrete column are provided with temporary support.
10. a kind of installation method of prestressing force assembled beam-column node beam-ends welding stirrup construction according to claim 9,
Characterized by the following steps
Step 1：Precast concrete column, precast concrete beam body and overlapping back, which are made, in factory indulges muscle, precast concrete beam body
Girder pre-stressed duct is inside reserved, reserves column prestressed pore passage in precast concrete column, anchoring in pre- buried column in precast concrete column
Reinforcing bar and steel bar connector；
Step 2：Before the factory of precast concrete beam body, overlapping back is indulged into muscle and the overhanging U-stirrups of beam-ends pre-fix, according to steel
The end that the model of muscle adapter indulges muscle to overlapping back carries out thread processing, and overlapping back indulges the end retraction of muscle；
Step 3：Temporary support is installed in precast concrete column, adjusts the verticality of precast concrete column, by precast concrete
Beam body is lifted to temporary support, fixed precast concrete beam body；
Step 4：Post-tensioned prestressing beam is laid in girder pre-stressed duct and column prestressed pore passage, in precast concrete beam body and
Seam crossing between precast concrete column fills fiber grouting material, and tensioning post-tensioned prestressing beam is fixed；
Step 5：Loosen overlapping back indulge muscle, overlapping back indulge muscle one end protrude into steel bar connector and with anchor bar in column
Be connected and fixed, when overlap back indulge muscle and steel bar connector to it is not upper when, finely tune the overhanging U-stirrups of beam-ends, make to overlap back vertical
Muscle and steel bar connector are connected and fixed, and meet the connection depth requirements of steel bar connector；
Step 6：Two open ends of the overhanging U-stirrups of beam-ends are mutually overlapped, single-sided welding forms closed stirrup；
Step 7：Casting concrete forms beam last layer, completes construction construction.
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| CN110512727A (en) * | 2019-07-23 | 2019-11-29 | 江苏晟功建设集团有限公司 | A kind of pre-buried insulation board post stretching anchorage node construction of assembled architecture lotus rhizome beam and its construction method |
| CN111877546A (en) * | 2020-07-15 | 2020-11-03 | 太原理工大学 | Fabricated frame beam-column wet joint with buckling restrained brace and construction method |
| CN111980150A (en) * | 2020-09-01 | 2020-11-24 | 湖南大学 | Assembled prestressing force anti frame construction that collapses in succession |
| CN112095445A (en) * | 2020-09-16 | 2020-12-18 | 贵州路桥集团有限公司 | Connection structure of steel-concrete composite beam |
| CN112359966A (en) * | 2020-10-27 | 2021-02-12 | 广州地铁设计研究院股份有限公司 | Connecting joint of superposed beam and concrete column and construction method thereof |
| CN115126087A (en) * | 2022-08-03 | 2022-09-30 | 中国十七冶集团有限公司 | Integrated post-tensioned prestressed concrete beam column for building and construction method |
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Application publication date: 20181123 |