CN109610877A - Improve the node and method of prefabricated assembled concrete frame construction cracking resistance - Google Patents
Improve the node and method of prefabricated assembled concrete frame construction cracking resistance Download PDFInfo
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- CN109610877A CN109610877A CN201910103981.5A CN201910103981A CN109610877A CN 109610877 A CN109610877 A CN 109610877A CN 201910103981 A CN201910103981 A CN 201910103981A CN 109610877 A CN109610877 A CN 109610877A
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- lath
- conduit
- cracking resistance
- concrete frame
- node
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- 239000004567 concrete Substances 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 238000005336 cracking Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000003733 fiber-reinforced composite Substances 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims description 22
- 230000002787 reinforcement Effects 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229920002748 Basalt fiber Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010010356 Congenital anomaly Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
-
- 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
- E04B1/19—Three-dimensional framework structures
- E04B1/1903—Connecting nodes specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses the nodes and method of a kind of raising prefabricated assembled concrete frame construction (referred to as " PC frame structure ") cracking resistance; the present invention reserves several conduits in the concrete cover by the beam sides near piece; and fiber-reinforced composite material lath is installed, to improve the cracking resistance of edge joint position.Beam sides of the present invention near piece reserves conduit and installs fiber-reinforced composite material lath, and the crack resistance and durability at piece position can be improved, and then the full life for extending frame structure is on active service the period.The node that the present invention is suitable for PC frame structure is assembled, and convenient and effect of constructing is obvious, has broad application prospects.
Description
Technical field
The invention belongs to building fields, are related to prefabricated assembled concrete frame construction (referred to as " PC frame structure "), special
It is not related to a kind of node and method for improving prefabricated assembled concrete frame construction cracking resistance.
Background technique
Reinforced concrete frame node includes the joint cores that beam intersects with column and neighbouring beam-ends, styletable, in frame
Play the role of transmission internal force in frame structure and keeps structural integrity.
PC frame structure has the advantages that high-quality, high production efficiency, labor intensity of workers are low etc., and multi-pass is crossed in node area
Domain is attached precast beam, column.Relative to cast-in-place concrete structure, the connecting portion of PC frame structure is congenital not because of cracking resistance
Foot, is durability weak part.
The type of attachment of PC frame structure can mainly be classified as wet connection according to construction method and involvement connects two kinds.Wherein,
Wet connection is main stream process mode, i.e. field operation connects, and reinforcing bar, steel plate or bolt that piece position is stretched out in advance are welded
It connects, overlap or is mechanically connected, assembly is then realized by poured in place concrete or other cementation of fissures slurries.Such method
In, precast concrete and subsequent cast-in-place concrete only bond, and can not really be integrally formed, not can avoid junction crack
Generation, easily become the channel of percolating water, cause prefabrication material to corrode, even lead to safety accident
Occur, causes a hidden trouble to resident's property and life security.Therefore, taking effective Crack Resistance to these piece positions is very
It is necessary.
Summary of the invention
The present invention provides a kind of node and method for improving prefabricated assembled concrete frame construction cracking resistance, it passes through
Several conduits are reserved in beam sides concrete cover near piece, and fiber-reinforced composite material lath, Lai Tigao are installed
The cracking resistance of edge joint position then improves the durability of structure and extends it and is on active service the period.The present invention is suitable for PC frame structure
All kinds of bean column nodes, convenient and effect of constructing is obvious, has broad application prospects.
Technical scheme is as follows:
A kind of node improving prefabricated assembled concrete frame construction cracking resistance, including the use of existing assembly method and
It is reserved in the concrete frame node that technology is completed, and beam sides concrete cover near the piece of the node
Several conduits, and the fiber-reinforced composite material lath being mounted on using structure glue in the conduit.Above structure can be reinforced spelling
The connection for stitching two sides precast construction, improves the cracking resistance of piece.
Preferably, the conduit being arranged in the side concrete cover of each beam be it is a plurality of, correspondingly, described
Lath is also more.
Preferably, the lath is single lamellar or the entirety made of more lamellars of structure glue.
Preferably, the section of the lath is rectangular section, width bfTake 12~16mm, total thickness tf6~8mm is taken, institute
The length for stating lath is respectively to extend 10~12b from the edge joint position toward two sidesfLength.The determination of above-mentioned parameter be rule of thumb and
The comprehensive determination such as single lamellar size, cracking resistance can be better met.
Preferably, the conduit is arranged in parallel along the axisymmetrical of the beam, and along depth of beam direction spacing
80~100mm is taken, and the distance of the flange surfaces away from the beam not higher than 1/4 deck-molding and is not less than 40mm.Such setting can obtain
To better cracking resistance.
Preferably, the determination of the conduit size is as follows: channel lengths take stave lengths;Channel depth takes width of sheet bf
1.5 times;Channel width takes lath thickness 2tf(tf+ 6mm) the greater.Available better crack resistance is arranged such
Energy.
Preferably, when the lath is installed, width and is pacified between two parties by structure glue along the depth direction of the conduit
It is packed into the conduit.
A method of prefabricated assembled concrete frame construction cracking resistance being improved, first progress plank designs and system
Make, and in prefabricated components process, reserves several conduits in the beam sides concrete cover near piece accordingly, so
Concrete frame node is completed using existing assembly method and technology afterwards to assemble, and is finally mounted on lath using structure glue described
In conduit.
Preferably, according to the sectional dimension and arrangement of reinforcement situation of the beam of the edge joint position, fiber-reinforced composite material is determined
Quantity, length and its sectional dimension of lath.
Preferably, length and its size determination of the fiber-reinforced composite material lath are as follows:
Rectangular section, width b are preferentially selected in the section of the lathfTake 12~16mm, total thickness tfTake 6~8mm;Institute
The length for stating lath respectively extends 10~12b from the edge joint position toward two sidesfLength.
Preferably, the lath is single lamellar;Or, when single lamellar thickness is unsatisfactory for setting thickness, it can benefit
It is made of more lamellars of structure glue.
Preferably, according to the quantity and size of the lath, conduit size and arrangement are determined.
Preferably, the conduit is arranged in parallel along the axisymmetrical of the beam, and along depth of beam direction spacing
80~100mm is taken, and the distance of the flange surfaces away from the beam not higher than 1/4 deck-molding and is not less than 40mm.
Preferably, conduit size determination is as follows: the length of the conduit takes the length of the lath;The conduit
Depth take the width b of the lathf1.5 times;The width of the conduit takes the thickness 2t of the lathf(tf+ 6mm)
The greater;The conduit inwall processing is coarse hair side, so that concrete is sufficiently engaged with colloid.
Preferably, by the width of the lath along the depth direction of the conduit, and by structure glue, install between two parties into
The conduit.
Preferably, the fiber composite material is selected from carbon fiber, glass fibre, basalt fibre or aramid fiber composite wood.
The present invention also provides a kind of methods for improving prefabricated assembled concrete frame construction cracking resistance comprising following
Step:
(1) plank designs and production
According to the size of edge joint position beam section and arrangement of reinforcement situation, lath quantity, length and its sectional dimension are determined, and make
Lath;
(2) conduit is designed and is reserved
According to lath quantity and size, conduit size and arrangement, and reserved conduit are determined;
(3) lath is installed
First by conduit inner wall dabbing, lath is packed into conduit then by structure glue by impurity to the greatest extent between two parties clearly.
According to a kind of raising prefabricated assembled concrete frame construction cracking resistance described in the application preferred embodiment
Method according to the size of edge joint position beam section and arrangement of reinforcement situation, determines stave lengths and its sectional dimension in step (1):
Rectangular section, width b are preferentially selected in the lath sectionfTake 12~16mm, total thickness tf6~8mm is taken, it is single
When lamellar thickness is unsatisfactory for, the lath for meeting thickness requirement is obtained using more lamellars of structure glue;
The length of the lath respectively extends 10~12b from edge joint position toward two sidesfLength.
According to a kind of raising prefabricated assembled concrete frame construction cracking resistance described in the application preferred embodiment
Method, in step (2), the conduit size determination is as follows: channel lengths take stave lengths;Channel depth takes width of sheet
bf1.5 times;Channel width takes lath thickness 2tf(tf+ 6mm) the greater;
The conduit arrangement is as follows: be arranged in parallel along beam axisymmetrical, along deck-molding direction spacing take 80~
100mm;Not higher than 1/4 deck-molding and it is not less than 40mm away from flange of beam surface distance.
According to a kind of raising prefabricated assembled concrete frame construction cracking resistance described in the application preferred embodiment
Width of sheet is packed into conduit by structure glue along channel depth direction in step (3) by method between two parties.
Compared with prior art, beneficial effects of the present invention are as follows:
1, the node of a kind of raising prefabricated assembled concrete frame construction cracking resistance of the invention, for prefabrication and assembly construction
The poor defect of the piece position crack resistance of formula concrete frame structure, by the beam section concrete cover of edge joint position
It reserves several conduits and fiber-reinforced composite material lath is installed, strengthen the connection of piece two sides precast construction, improve piece
Cracking resistance;
2, method of the invention is used to reserve conduit on node edge joint position concrete cover and install fiber reinforcement and be answered
The mode for closing material lath, can be used for reinforcing all kinds of prefabricated construction nodes, applied widely, have convenient, safety of constructing
Property high and durability it is good the advantages that, have a extensive future.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
Fig. 1 is that 1 single fiber of the embodiment of the present invention enhances composite wood lamellar schematic diagram;
Fig. 2 is more than 1 adhesive type fiber-reinforced composite material lath schematic diagram of the embodiment of the present invention;
Fig. 3 is the rectangle batten schematic diagram that the embodiment of the present invention 1 is used for grooving;
Fig. 4 is the front elevation view before 1 Precast Concrete Frame of the embodiment of the present invention is reinforced;
Fig. 5 is the beam section schematic diagram after the embodiment of the present invention 1 is reinforced;
Fig. 6 is the overall effect schematic diagram after the embodiment of the present invention 1 is reinforced;
Figure label meaning is as follows:
The thin lamellar of 1-;2- fiber-reinforced composite material lath;3- batten;4- prefabricated post;5- precast beam;6- conduit;7- connects
Seam.
Specific embodiment
Aiming at the problem that being mentioned in background technique, inventors have found that grow up within nearly 20 years based on fiber-reinforced composite
The reinforcement means of material, by high efficiency and high strength, durability is good the advantages that, be always the hot research problem of civil engineering field, how
It is rationally applied to PC frame structure piece position, and then is effectively improved piece and carries out the problems such as excessive, improves the anti-of structure
Fragility can be the key that of the invention.
The present invention installs fiber reinforcement by reserving several conduits in the beam sides concrete cover near piece
Composite wood lath, the connection of Lai Jiaqiang piece two sides precast construction, improves the cracking resistance of edge joint position, then improves the resistance to of structure
Long property and its military service period of extension.The present invention is suitable for all kinds of bean column nodes of prefabricated assembled concrete frame construction, and construction is just
Prompt and effect is obvious, has broad application prospects, method of the invention is generally applicable to all kinds of concrete structures or component connects
Seam, it is applied widely.
The method of a kind of raising prefabricated assembled concrete frame construction cracking resistance of the invention, i.e., near piece
Conduit is reserved in beam sides concrete cover and fiber-reinforced composite material lath is installed, specifically includes the following steps:
(1) plank designs and production
According to the size of edge joint position beam section and arrangement of reinforcement situation, lath quantity, length and its sectional dimension are determined, and make
Lath;
Determine slat dimension: rectangular section, width b are preferentially selected in the lath sectionfTake 12~16mm, total thickness tf
Take 6~8mm;The length of the lath respectively extends 10~12b from edge joint position toward two sidesfLength;Above-mentioned size, which determines, to be suitable for leading to
The case where protective layer of the components such as Chang Liang, column is between 20-25mm, conduit are arranged in the protective layer;
Lath production: when single lamellar thickness is unsatisfactory for, needed for being made using more lamellars of structure glue
Lath can specifically cut the thin lamellar of corresponding length according to required slat dimension, in thin lamellar surface coated structure glue, warp
The excessive thin lamellar of root is mutually pasted, lath required for being made.Lath tensile strength used in the present invention is high, is constantly in
Elastic stage being capable of automatic retracted after external loads are laid down;
(2) conduit is designed and is reserved
According to lath quantity and size, conduit size and arrangement, and reserved conduit are determined;
Specifically,
Determine that conduit is arranged: each conduit is arranged in parallel along the axisymmetrical of beam, along deck-molding direction spacing take 80~
100mm;Not higher than 1/4 deck-molding and it is not less than 40mm away from flange of beam surface distance, to reach ideal consolidation effect;
Determine conduit size: channel lengths take stave lengths;Channel depth takes width of sheet bf1.5 times;Channel width
Take lath thickness 2tf(tf+ 6mm) the greater;
Reserved conduit: according to design size, the conduit of predetermined size is reserved in prefabricated components corresponding position.Conduit is reserved can
By placing the mold (such as flitch) of corresponding size in concreting, taken out after concrete initial set;
(3) lath is installed
First by conduit inner wall dabbing, lath is packed into conduit then by structure glue by the impurity such as clear ash floating to the greatest extent between two parties;
Specifically,
Installation prepares: by conduit inner wall dabbing, clear ash floating to the greatest extent etc., so that concrete is sufficiently engaged with colloid;
Lath is installed: 2/3 volume of structure colloid needed for first being injected in slot, then by width of sheet along channel depth side
To being inserted into conduit between two parties.Remaining structure glue is reinjected, makes it full of whole conduit, finally erases extra glue with spatula.
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate this hair
It is bright, rather than limit the scope of protection of the present invention.What those skilled in the art made according to the present invention in practical applications changes
Into and adjustment, still fall within protection scope of the present invention.The available prior art of each component part being not known in the present embodiment adds
To realize.
Embodiment 1
For the present embodiment by taking certain frame interior joint as an example, 4 sectional dimension of prefabricated post is 600 × 600mm, and precast beam 5 is cut
Face is spliced having a size of 250 × 400mm (the high 380mm of web), prefabricated post 4 and precast beam 5 in 7 position of seam, and edge joint position is deposited
In the problem of potential cracking resistance deficiency.
As shown in Fig. 1~2, according to reinforcing joint situation, 3 thin lamellar 1 (wide 16mm, thick 2mm) is pasted onto one
Obtained fiber-reinforced composite material lath 2 is played, the wide 16mm in 2 section of lath, thick 6mm, (setting position is from edge joint position two to long 320mm
Side respectively extends 160mm).Lath 2 amounts to the six roots of sensation, the every side of beam section web three, and intermediate lath is arranged along 5 axis of beam, two end plates
Item is arranged along the direction parallel with 5 axis of beam;Both ends slat center is away from flange of beam surface 100mm, each slat center spacing
100mm, slat center are overlapped with 7 center of seam.
As shown in figs. 34, conduit 6 is reserved, under the premise of lath installation site determines, first makes batten 3, length
320mm, wide 12mm, deep 24mm.Batten 3 is taken out when concrete initial set, obtains the conduit of required size.
As shown in Fig. 5~6, when in-site installation, dabbing processing first is carried out with inner wall of the chisel to conduit 6, it is most clearly with air pump
The floating ash of disintegrating slag in slot;Then the structure glue of 2/3 volume is injected in conduit 6, then by the width of lath 2 along 6 depth side of conduit
To insertion conduit 6 placed in the middle;Structure glue is refilled, makes it full of conduit 6, sufficiently package lath, finally erases beam surface with spatula
Surplus glue.
Fig. 6 is the overall effect schematic diagram after 1 frame interior joint of the present embodiment is reinforced.
The present invention and above-described embodiment in the beam section concrete cover of edge joint position by reserving several conduits and pacifying
Fiber-reinforced composite material lath is filled, the connection of piece two sides precast construction is strengthened, improves piece cracking resistance.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (11)
1. a kind of node for improving prefabricated assembled concrete frame construction cracking resistance, which is characterized in that including the use of existing
The concrete frame node that assembly method and technology are completed, and the beam sides concrete protective near the piece of the node
Several conduits reserved in layer, and the fiber-reinforced composite material lath being mounted on using structure glue in the conduit.
2. improving the node of prefabricated assembled concrete frame construction cracking resistance as described in claim 1, which is characterized in that
The conduit being arranged in the side concrete cover of each beam be it is a plurality of, correspondingly, the lath is also more.
3. improving the node of prefabricated assembled concrete frame construction cracking resistance as described in claim 1, which is characterized in that
The lath is single lamellar or the entirety made of more lamellars of structure glue.
4. improving the node of prefabricated assembled concrete frame construction cracking resistance as described in claim 1, which is characterized in that
The section of the lath is rectangular section, width bfTake 12~16mm, total thickness tf6~8mm is taken, the length of the lath is
Respectively extend 10~12b from the edge joint position toward two sidesfLength.
5. improving the node of prefabricated assembled concrete frame construction cracking resistance as described in claim 1, which is characterized in that
The conduit is arranged in parallel along the axisymmetrical of the beam, and takes 80~100mm along depth of beam direction spacing, and away from
The flange surfaces distance of the beam not higher than 1/4 deck-molding and is not less than 40mm.
6. improving the node of prefabricated assembled concrete frame construction cracking resistance as claimed in claim 4, which is characterized in that
The determination of the conduit size is as follows: channel lengths take stave lengths;Channel depth takes width of sheet bf1.5 times;Conduit is wide
Degree takes lath thickness 2tf(tf+ 6mm) the greater.
7. a kind of method for improving prefabricated assembled concrete frame construction cracking resistance, which is characterized in that progress lath first
It designs and makes, and in prefabricated components process, if being reserved in the beam sides concrete cover accordingly near piece
Then dry conduit is completed concrete frame node using existing assembly method and technology and is assembled, finally utilizes structure glue by lath
It is mounted in the conduit.
8. the method according to claim 7 for improving prefabricated assembled concrete frame construction cracking resistance, feature exist
In the design of the lath are as follows: according to the sectional dimension and arrangement of reinforcement situation of the beam of the edge joint position, determine the number of lath
Amount, length and its sectional dimension.
9. the method according to claim 7 or 8 for improving prefabricated assembled concrete frame construction cracking resistance, feature
It is, according to the quantity and size of the lath, determines conduit size and arrangement.
10. the method according to claim 7 for improving prefabricated assembled concrete frame construction cracking resistance, feature exist
In the width of the lath being arranged along the depth direction of the conduit, and by structure glue, lath is installed between two parties into institute
State conduit.
11. a kind of method for improving prefabricated assembled concrete frame construction cracking resistance, which is characterized in that including following step
It is rapid:
(1) plank designs and production
According to the size of edge joint position beam section and arrangement of reinforcement situation, lath quantity, length and its sectional dimension are determined, and make plate
Item;
(2) conduit is designed and is reserved
According to lath quantity and size, conduit size and arrangement, and reserved conduit are determined;
(3) lath is installed
First by conduit inner wall dabbing, lath is packed into conduit then by structure glue by impurity to the greatest extent between two parties clearly.
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CN201910103981.5A CN109610877B (en) | 2019-02-01 | 2019-02-01 | Node and method for improving crack resistance of prefabricated concrete frame structure |
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CN201910103981.5A CN109610877B (en) | 2019-02-01 | 2019-02-01 | Node and method for improving crack resistance of prefabricated concrete frame structure |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111101628A (en) * | 2020-01-02 | 2020-05-05 | 中国矿业大学 | FRP sheet material connecting structure and method for precast concrete beam plate system |
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CN103195170A (en) * | 2013-04-03 | 2013-07-10 | 中铁建设集团有限公司 | Prefabricated reinforced concrete frame structure system |
CN104499568A (en) * | 2014-12-19 | 2015-04-08 | 东南大学 | Square steel pipe fabricated column-prefabricated superposed beam integrally-fabricated frame and construction method |
CN105649202A (en) * | 2016-01-11 | 2016-06-08 | 安徽理工大学 | Prestress fabricated frame joint structure and construction method thereof |
CN209780313U (en) * | 2019-02-01 | 2019-12-13 | 上海应用技术大学 | Node for improving crack resistance of prefabricated concrete frame structure |
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2019
- 2019-02-01 CN CN201910103981.5A patent/CN109610877B/en active Active
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KR20060112874A (en) * | 2005-04-28 | 2006-11-02 | 주식회사 인터컨스텍 | Methods for connection of spliced prestressed concrete girder segments |
CN101240662A (en) * | 2008-03-13 | 2008-08-13 | 山东省建筑科学研究院 | Inner binding outer cramping method architecture structural crack comprehensive processing method |
CN103195170A (en) * | 2013-04-03 | 2013-07-10 | 中铁建设集团有限公司 | Prefabricated reinforced concrete frame structure system |
CN104499568A (en) * | 2014-12-19 | 2015-04-08 | 东南大学 | Square steel pipe fabricated column-prefabricated superposed beam integrally-fabricated frame and construction method |
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