CN114396118A - Fabricated concrete frame structure connected through prestress compression joint and construction method - Google Patents
Fabricated concrete frame structure connected through prestress compression joint and construction method Download PDFInfo
- Publication number
- CN114396118A CN114396118A CN202111570306.7A CN202111570306A CN114396118A CN 114396118 A CN114396118 A CN 114396118A CN 202111570306 A CN202111570306 A CN 202111570306A CN 114396118 A CN114396118 A CN 114396118A
- Authority
- CN
- China
- Prior art keywords
- concrete
- precast concrete
- column
- precast
- prestressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 107
- 238000010276 construction Methods 0.000 title claims abstract description 46
- 230000006835 compression Effects 0.000 title claims abstract description 28
- 238000007906 compression Methods 0.000 title claims abstract description 28
- 239000011178 precast concrete Substances 0.000 claims abstract description 207
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 239000011148 porous material Substances 0.000 claims abstract description 51
- 238000004519 manufacturing process Methods 0.000 claims abstract description 28
- 239000011513 prestressed concrete Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 12
- 238000013461 design Methods 0.000 claims description 32
- 230000002787 reinforcement Effects 0.000 claims description 27
- 239000004570 mortar (masonry) Substances 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 238000005516 engineering process Methods 0.000 claims description 12
- 238000004873 anchoring Methods 0.000 claims description 11
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 6
- 238000009417 prefabrication Methods 0.000 claims description 6
- 230000008093 supporting effect Effects 0.000 claims description 6
- 210000002435 tendon Anatomy 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 238000002788 crimping Methods 0.000 claims 2
- 230000008569 process Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- 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
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/023—Separate connecting devices for prefabricated floor-slabs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/162—Connectors or means for connecting parts for reinforcements
- E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
- E04C5/165—Coaxial connection by means of sleeves
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The invention discloses a prestress compression joint assembly type concrete frame structure and a construction method, and relates to the technical field of assembly type concrete frame structures. In order to facilitate construction, the structure comprises a precast concrete column, a precast concrete beam and a precast concrete slab, wherein the precast concrete column comprises a precast concrete column body and a column first pore canal arranged on the precast concrete column body, and the precast concrete beam is divided into a precast prestressed concrete beam and a common reinforced concrete precast beam; the method comprises the following steps: and (4) factory standardized production of the precast concrete column, the precast concrete beam body and the precast concrete plate body. Compared with the prior art, the assembled concrete frame structure connected by prestress compression joint and the construction method thereof are different in that the prestress full-length steel twisted wire is used for connecting beam-column nodes, so that wet operation at the beam-column nodes is avoided, and the construction process is simple.
Description
Technical Field
The invention relates to the technical field of construction of an assembled concrete frame structure, in particular to an assembled concrete frame structure connected through prestress compression joint and a construction method.
Background
The prefabricated concrete structure is one of important structural systems for realizing the modernization of the building industry, has the advantages of good component quality, high construction efficiency, less material waste, energy conservation, environmental protection and the like, and meets the requirements of the current-stage development of China on green energy conservation and environmental protection. Compared with the traditional cast-in-place concrete structure system, the cast-in-place concrete structure system has the advantages that the requirements for low carbon and environmental protection are met more easily.
Although the common prefabricated concrete structure is produced in a factory, the main structure is not connected in a non-wet operation mode, and the nodes are connected in a wet operation cast-in-place mode.
Meanwhile, most of the beam-column connections of the prestress assembly type frame structures only play a role in connection, common steel bars or energy-consuming steel bars are still needed at nodes to meet the requirements of bearing capacity and earthquake resistance of the nodes, and plates are generally laid after the beam-column nodes are connected, so that the beam-end negative bending moment is large, and the large-span structure is difficult to be reinforced.
Therefore, a new prestressed assembly type frame structure system with higher assembly efficiency, simpler construction and better structural performance is needed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a prestress compression joint assembly type concrete frame structure and a construction method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pre-stressed compression joint assembly type concrete frame structure comprises a precast concrete column, a precast concrete beam and a precast concrete slab, wherein the precast concrete column comprises a precast concrete column body and a column first pore canal arranged on the precast concrete column body, the precast concrete beam is divided into a precast pre-stressed concrete beam and a common reinforced concrete precast beam, the precast pre-stressed concrete beam and the common reinforced concrete precast beam respectively comprise a precast concrete beam body, a beam top reinforcing steel bar and a beam bottom reinforcing steel bar which are arranged in the precast concrete beam body, the precast concrete beam body is arranged on the outer wall of one side of the precast concrete column body, the beam top reinforcing steel bar and the beam bottom reinforcing steel bar are bent or cut at the beam end to the center, and the precast concrete column body is a through-length precast column structure or a sectional precast column structure; the precast concrete slab comprises a precast concrete slab body, the precast concrete slab body is one of a prestressed round hole plate, a prestressed double-T plate and a laminated slab, and a concrete laminated layer is poured on the precast concrete slab body.
Preferably: the prefabricated concrete column body is replaced by a segment type prefabricated column structure, the prefabricated concrete columns of the segment type prefabricated structure are vertically connected through grouting sleeves, or a column second hole is formed in the top of the prefabricated concrete column body, finish-rolled threaded steel bars penetrate through the column second hole, and the prefabricated concrete column body is connected with other prefabricated concrete columns through prestress generated by tensioning of the finish-rolled threaded steel bars.
Further: a first beam hole penetrating through the precast concrete beam body is formed in the precast concrete column body, a first column hole matched with the first beam hole is formed in the outer wall of the precast concrete column body, a prestressed steel strand is installed in the first beam hole and matched with the first column hole, and the precast concrete column body and the precast concrete beam body are pressed and connected together by applying prestress.
Further preferred is: and a beam second hole is formed in the precast concrete beam body of the precast prestressed concrete beam, an in-beam prestressed tendon penetrates through the beam second hole, and two ends of the in-beam prestressed tendon are anchored at two ends of the precast concrete beam body through a beam end steel strand anchorage.
As a preferable aspect of the present invention: be provided with the bright bracket on the outer wall of precast concrete cylinder, the bright bracket is the right trapezoid structure, the bottom outer wall and the outer wall adaptation in bright bracket top of precast concrete beam body one end.
Further preferred as the invention: the outer wall of each of two sides of the precast concrete column body is provided with a protrusion, a key groove is formed between the two protrusions located on the same side, one end of the precast concrete beam body is provided with a connecting key matched with the key groove, and the precast concrete beam body is installed in the key groove of the precast concrete column body through the connecting key.
As a still further scheme of the invention: be provided with the hidden bracket on the precast concrete cylinder outer wall, the both ends outer wall of the precast concrete beam body be provided with the notch of hidden bracket looks adaptation, in the notch of the precast concrete beam body of hidden bracket embedding, precast concrete beam body bottom outer wall flushes with hidden bracket bottom outer wall.
On the basis of the scheme: high-strength mortar joints are formed between the precast concrete columns and the precast concrete beam bodies during splicing, and the high-strength mortar joints between the precast concrete columns and the precast concrete beam bodies are of a continuous structure; mortar is filled in the high-strength mortar joints.
A construction method of an assembled concrete frame structure of prestress compression joint comprises the following steps:
s1: factory standardized production of the precast concrete column, the precast concrete beam body and the precast concrete plate body;
s2: transporting and hoisting the components in place;
according to the construction progress requirement, the prefabricated parts are transported to a construction site in batches, and the parts are hoisted in place according to the design requirement and the part numbers; firstly, hoisting a precast concrete cylinder; the precast concrete column body is divided into a through long precast column structure and a sectional precast column structure; when a through-length prefabricated column structure is hoisted, firstly, carrying out slurry sitting treatment on a corresponding interface of a foundation, after the column is in place, arranging a temporary support, and then grouting a sleeve according to the specification or design requirement to complete column installation;
when the grouting sleeve is adopted for connecting the sectional prefabricated column structure, the construction method is the same as the connection method of the full-length prefabricated column structure and the foundation; when the prestressed finish-rolled threaded steel bars are used for connection, the foundation is grouted and then the bottom precast concrete cylinder is hoisted, finish-rolled threaded steel bars penetrate into a second pore passage of the column and are connected with the finish-rolled threaded steel bars pre-embedded in the foundation through a connector at the bottom of the column, and then the finish-rolled threaded steel bars are tensioned and anchored at the top of the column; the connection construction of the other layers of precast concrete columns and the next layer of precast concrete column is equal to the connection of the bottom layer column and the foundation, and after all the precast concrete columns are installed, the grouting of finish-rolled twisted steel bar pore passages in the columns is completed from bottom to top;
s3: connecting beam-column contact surface through a pore, paving a plate and grouting a spliced seam;
after each layer of precast concrete column is installed, hoisting the precast concrete beam bodies according to the construction sequence, and establishing temporary supports at the end heads of the precast concrete beam bodies during the construction of the beam-column joints without corbels; during construction, the first pore channel of the beam and the first pore channel of the column are aligned and communicated; after all pore passages are connected, laying a precast concrete plate body, hoisting the precast concrete plate body according to design requirements and component numbers, constructing the connection between the precast concrete plate body and the precast concrete beam body according to the current national standard specification, temporarily supporting and bearing the load transmitted by the precast concrete plate body by a bracket or a temporary support, and after the laying of the plate is finished, performing crack pouring treatment on gaps at the contact surfaces of the precast concrete column body and the precast concrete beam body by adopting high-strength mortar;
s4: tensioning and anchoring the prestressed steel strand of the prestressed steel strand;
after the strength of the seam filling mortar at the abutted seam reaches the design requirement, penetrating prestressed steel strand prestressed steel strands into corresponding pore passages of the beam-column joint in a full-length manner, and performing tensioning, anchoring and grouting according to the design requirement to form the beam-column into a whole;
s5: pouring a concrete superposed layer of the floor slab;
and after the integral structure is finished, binding a reinforcing mesh of the concrete superposed layer of the floor slab, and then pouring concrete of the concrete superposed layer according to the design requirement to finish the construction of the main structure.
On the basis of the foregoing scheme, it is preferable that: the production method of the precast concrete column comprises the following steps: the full-length prefabrication or layer-by-layer segmental prefabrication production is adopted; aiming at the precast concrete column body connected by the grouting sleeve, firstly, installing a precast column template and a reinforcement cage, installing the grouting sleeve at the end part of the reinforcement, and then performing concrete pouring and curing to finish the production of the precast concrete column body; aiming at a precast concrete column body connected by adopting a prestressed finish-rolled threaded steel bar, firstly installing a precast column template and a steel reinforcement cage, simultaneously pre-burying a post-tensioned finish-rolled threaded steel bar pore-forming pipeline in the column according to design requirements, and then carrying out concrete pouring and maintenance to complete the production of the precast concrete column body;
for the precast concrete beam body, the traditional post-tensioning bonded prestress technology or the retarded bonded prestress technology is adopted for production; when the traditional post-tensioning bonding prestress technology is adopted for production, firstly, a template is installed, a reinforcement cage is hoisted, the reinforcement cage comprises a beam top reinforcement and a beam bottom reinforcement, a beam first pore and a beam second pore are pre-buried according to the design position, then concrete is poured, after the concrete reaches the design strength, a prestressed reinforcement in the beam is penetrated in the beam second pore, tensioning is carried out, anchoring and pore grouting are carried out, and the production of the prefabricated prestressed concrete frame beam is completed; when the retarded adhesive prestress technology is adopted, prestressed ribs in the retarded adhesive beam are installed according to the designed line shape while a reinforcement cage is installed, then concrete is poured, and after the concrete strength meets the design requirement, the prestressed ribs in the retarded adhesive beam are tensioned, anchored and sealed, so that the production of the retarded adhesive precast concrete beam body is completed; in addition, in the production stage of the precast concrete beam body, the first pore channels of the beam are reserved at the four corners of the beam section according to the design position before concrete pouring and are used for assembling the structure in the later stage.
The invention has the beneficial effects that:
1. compared with the prior art, the assembled concrete frame structure connected by prestress compression joint and the construction method thereof are different in that the prestress full-length steel twisted wire is used for connecting beam-column nodes, so that wet operation at the beam-column nodes is avoided, and the construction process is simple.
2. The construction of the precast beam adopts a construction process of changing simple support into continuous, and the plate can be laid before beam column member connection in the construction stage, so that the hogging moment at the beam column joint in the use stage can be greatly reduced, and the reinforcing steel bar arrangement amount of the beam end joint area is reduced. All the components are prefabricated in a factory, so that the production, transportation and installation efficiency of the components is improved, the installation process of the vertical components is simplified, the construction period is obviously shortened, the field wet operation amount is reduced, the operation environment of the construction field can be obviously improved, and the use of templates and the loss of turnover materials are reduced.
3. Meanwhile, the columns can be arranged in full length and can also be limited by transportation conditions, and are arranged in sections, so that the flexibility during assembly is greatly increased. The beam-column joint connection structure method can select the beam-column joint connection structure without corbels, bright corbels, dark corbels and key grooves according to the use requirement and the loading condition of the structure. The frame roof beam can adopt prestressed concrete roof beam, also can adopt ordinary reinforced concrete roof beam, and the connection of node does not influence the inside reinforcing bar of component and arranges, and structural design is comparatively nimble, is applicable to the frame construction building of all kinds of column net sizes.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic structural view of an assembled concrete frame structure of a prestressed compression joint according to the present invention;
FIG. 2 is a schematic structural view of a corbel-free precast column of a prestressed compression joint fabricated concrete frame structure according to the present invention;
FIG. 3 is a schematic structural view of an exposed corbel precast column of a prestressed compression joint fabricated concrete frame structure according to the present invention;
FIG. 4 is a schematic structural diagram of a prefabricated column with keyways of a prestressed compression joint assembly type concrete frame structure according to the present invention;
FIG. 5 is a schematic structural view of a prefabricated pillar of a prestressed compression-joint fabricated concrete frame structure hidden bracket according to the present invention;
fig. 6 is a schematic structural view of a cross section of a precast prestressed concrete beam of an assembled concrete frame structure of a prestressed compression joint proposed by the present invention;
FIG. 7 is a cross-sectional view of a prefabricated prestressed concrete beam I-I of a fabricated concrete frame structure for prestressed compression joint according to the present invention;
FIG. 8 is a cross-sectional view of a pre-stressed concrete beam II-II of a pre-stressed compression-joined fabricated concrete frame structure according to the present invention;
FIG. 9 is a schematic structural view of a fabricated concrete frame structure ordinary reinforced concrete precast beam of a prestressed compression joint type according to the present invention;
FIG. 10 is a cross-sectional view of a general reinforced concrete precast beam I-I of an assembled concrete frame structure according to the present invention, which is connected by prestressed compression;
FIG. 11 is a sectional view of a general reinforced concrete precast beam II-II of an assembled concrete frame structure of a prestressed press-connection proposed in the present invention;
FIG. 12 is a schematic structural view of a beam-column joint without corbel connection in an assembled concrete framework structure of a prestressed compression joint connection according to the present invention;
FIG. 13 is a schematic structural view of a beam-column joint open bracket connection in a pre-stressed compression joint fabricated concrete frame structure according to the present invention;
FIG. 14 is a schematic structural view of beam-column joint hidden corbel connection in an assembled concrete framework structure of a prestressed compression joint connection according to the present invention;
FIG. 15 is a schematic structural view of a beam-column joint keyway connection in an assembled concrete frame structure of a pre-stressed crimp connection according to the present invention;
in the figure: the prefabricated concrete column comprises a prefabricated concrete column body 1, a prefabricated concrete beam body 2, a prefabricated concrete plate body 3, a concrete laminated layer 4, a first column pore passage 5, a second column pore passage 6, a key groove 7, a hidden corbel 8, a visible corbel 9, a top reinforcing steel bar 10, a bottom reinforcing steel bar 11, a first beam pore passage 12, a second beam pore passage 13, an inner prestressed reinforcing steel bar 14, a prestressed stranded wire 15, a stranded wire anchorage at a beam end 16 and a high-strength mortar abutted seam 17.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1:
a pre-stressed press-fit connected fabricated concrete frame structure, as shown in fig. 1-15, comprising a precast concrete column, a precast concrete beam, a precast concrete slab; the precast concrete post includes precast concrete cylinder 1 and sets up the first pore 5 of post on precast concrete cylinder 1, the precast concrete roof beam divide into precast prestressed concrete roof beam and ordinary reinforced concrete precast beam, precast prestressed concrete roof beam and ordinary reinforced concrete precast beam all include precast concrete roof beam body 2 and set up roof portion reinforcing bar 10 and roof portion reinforcing bar 11 in precast concrete roof beam body 2, precast concrete roof beam body 2 installs the outer wall in one side of precast concrete cylinder 1, roof portion reinforcing bar 10 and roof portion reinforcing bar 11 are bent to the center at the beam-ends or are cut off the processing to increase the plastic zone length of tip. The precast concrete columns 1 are of full-length precast column structures or sectional precast column structures, namely 3-4 layers of full-length precast are adopted for each precast concrete column 1 or sectional precast column; the precast concrete plate comprises a precast concrete plate body 3, the precast concrete plate body 3 is one of a prestressed round hole plate, a prestressed double-T plate and a laminated slab, and a concrete laminated layer 4 is poured on the precast concrete plate body 3.
In order to promote the flexibility of construction, as shown in fig. 2, replace precast concrete cylinder 1 for festival segmentation precast column structure, the precast concrete cylinder 1 of festival segmentation precast structure passes through grout sleeve vertical connection, or has seted up post second pore 6 at precast concrete cylinder 1 top, has worn finish rolling twisted steel in the post second pore 6, and precast concrete cylinder 1 is connected with other precast concrete cylinders 1 through the prestressing force that the stretch-draw of finish rolling twisted steel produced.
In order to reliably fix the precast concrete beam body 2 to one side of the precast concrete column body 1, as shown in fig. 7-12, a beam first pore passage 12 which penetrates through the precast concrete beam body 2 is formed, a column first pore passage 5 which is matched with the beam first pore passage 12 is formed in the outer wall of the precast concrete column body 1, a prestressed steel strand 15 is installed in the beam first pore passage 12, the prestressed steel strand 15 is matched with the column first pore passage 5, and the precast concrete column body 1 and the precast concrete beam body 2 are pressed together by applying a pretension force to the prestressed steel strand 15; through setting up roof beam first pore 12 and the first pore 5 isotructures of post, can be at precast concrete cylinder 1, precast concrete beam body 2 hoists the back of taking one's place in wear prestressed steel strand wires 15, stretch-draw and make each part connect and form a whole after the anchor, the place different with prior art is that prestressed steel strand wires 15 that wear to establish between precast concrete cylinder 1 and precast concrete beam body 2 are full length prestressed steel strand wires, use full length prestressed steel strand wires one-line to pass and connect precast concrete cylinder 1 and precast concrete beam body 2, thereby can avoid using in the conventional way to plug into the phenomenon that the many places of production connect into a little with prestressed steel strand wires 15, further ensured the firmness of structure.
For more reliable load bearing; as shown in fig. 6 and 12, a second beam passage 13 is formed in the precast concrete beam body 2 of the precast prestressed concrete beam, an in-beam prestressed tendon 14 penetrates through the second beam passage 13, and two ends of the in-beam prestressed tendon 14 are anchored to two ends of the precast concrete beam body 2 through a beam-end steel strand anchor 16.
Example 2:
an assembled concrete frame structure of prestressed press-connection, as shown in fig. 3 and 13, for improving the supporting effect; the present embodiment is modified from embodiment 1 as follows: be provided with on the outer wall of precast concrete cylinder 1 bright bracket 9, bright bracket 9 is the right trapezoid structure, the bottom outer wall of precast concrete beam body 2 one end and the outer wall looks adaptation in bright bracket 9 top.
Example 3:
an assembled concrete frame structure of prestressed press-connection, as shown in fig. 4 and 15, for improving a supporting effect; the present embodiment is modified from embodiment 1 as follows: the outer wall of 1 both sides of precast concrete cylinder is provided with the arch, has formed keyway 7 between two archs that are located the homonymy, the one end of the precast concrete roof beam body 2 is provided with the connecting key with keyway 7 adaptation, and the precast concrete roof beam body 2 is installed in the keyway 7 of precast concrete cylinder 1 through the connecting key.
Example 4:
an assembled concrete frame structure of prestressed press-connection, as shown in fig. 5 and 14, for improving a supporting effect; the present embodiment is modified from embodiment 1 as follows: be provided with hidden bracket 8 on the 1 outer wall of precast concrete cylinder, the both ends outer wall of precast concrete beam body 2 is provided with the notch with 8 looks adaptations of hidden bracket, and in the notch of the precast concrete beam body 2 of 8 imbeds of hidden bracket, 2 bottom outer walls of precast concrete beam body flush with 8 bottom outer walls of hidden bracket.
Example 5:
an assembled concrete frame structure connected by prestress compression joint aims at improving structural firmness; the present embodiment is modified from embodiment 1 as follows: high-strength mortar joints 17 are formed between the precast concrete cylinder 1 and the precast concrete beam body 2 during splicing, and the high-strength mortar joints 17 between the precast concrete cylinder 1 and the precast concrete beam body 2 form a continuous structure; mortar is filled in the high-strength mortar abutted seam 17. Through the mortar piece 17 structure that excels in, can promote the compactness of being connected between precast concrete cylinder 1 and precast concrete beam body 2, concrete superimposed sheet 4 and the precast concrete plate body 3 when pouring to structural firmness has been promoted.
Example 6:
a construction method of an assembled concrete frame structure of prestress compression joint comprises the following steps:
s1: the prefabricated concrete column body 1, the prefabricated concrete beam body 2 and the prefabricated concrete plate body 3 are produced in a factory standardized mode;
s2: transporting and hoisting the components in place;
according to the construction progress requirement, the prefabricated parts are transported to a construction site in batches, and the parts are hoisted in place according to the design requirement and the part numbers; firstly, hoisting a precast concrete cylinder 1; the precast concrete column body 1 is divided into a through-length precast column structure and a sectional precast column structure; when a through-length prefabricated column structure is hoisted, firstly, carrying out slurry sitting treatment on a corresponding interface of a foundation, after the column is in place, arranging a temporary support, and then grouting a sleeve according to the specification or design requirement to complete column installation;
when the grouting sleeve is adopted for connecting the sectional prefabricated column structure, the construction method is the same as the connection method of the full-length prefabricated column structure and the foundation; when the prestressed finish-rolled threaded steel bars are used for connection, the foundation is grouted and then the bottom precast concrete column body 1 is hoisted, finish-rolled threaded steel bars penetrate into the second pore passage 6 of the column and are connected with the finish-rolled threaded steel bars pre-embedded in the foundation through a connector at the bottom of the column, and then tensioning and anchoring of the finish-rolled threaded steel bars are carried out at the top of the column; the connection construction of the other layers of the precast concrete columns 1 and the next layer of the precast concrete columns 1 is equal to the connection of the bottom layer column and the foundation, and after all the precast concrete columns 1 are installed, the grouting of finish-rolled twisted steel bar channels in the columns is completed from bottom to top;
s3: connecting beam-column contact surface through a pore, paving a plate and grouting a spliced seam;
after each layer of the precast concrete cylinder 1 is installed, hoisting the precast concrete beam body 2 according to the construction sequence, and when a corbel-free beam column node is constructed, establishing a temporary support at the end of the precast concrete beam body 2; during construction, the beam first pore passage 12 and the column first pore passage 5 are ensured to be aligned and communicated; after all the pore passages are connected, laying a precast concrete plate body 3, hoisting the precast concrete plate body 3 according to design requirements and component numbers, constructing the connection between the precast concrete plate body 3 and the precast concrete beam body 2 according to the current national standard, temporarily supporting and bearing the load transmitted by the precast concrete plate body 3 by brackets or temporary supports, and after the laying of the plate is finished, performing crack pouring treatment on gaps at the contact surfaces of the precast concrete column body 1 and the precast concrete beam body 2 by adopting high-strength mortar; the laying of the plates can also be finished after the beam-column connection is finished, namely after S4;
s4: tensioning and anchoring the prestressed steel strand 15;
after the strength of the seam filling mortar at the abutted seam reaches the design requirement, penetrating a prestressed steel strand 15 into a corresponding pore passage of a beam-column joint in a full-length manner, and performing tensioning, anchoring and grouting according to the design requirement to form the beam-column into a whole;
s5: pouring a concrete superposed layer 4 of the floor slab;
and after the integral structure is finished, binding the reinforcing mesh of the concrete superposed layer 4 of the floor slab, and then pouring the concrete of the concrete superposed layer 4 according to the design requirement to finish the construction of the main structure.
Wherein, the production mode of precast concrete cylinder 1 does: the full-length prefabrication or layer-by-layer segmental prefabrication production is adopted; the full-length prefabricated concrete column body 1 is suitable for buildings with no more than 3-4 floors as a whole, and the vertical connection between an upper column and a lower column does not need to be considered in the connection mode; aiming at the precast concrete column body 1 connected by the grouting sleeve, firstly, a precast column template and a reinforcement cage are installed, the grouting sleeve is installed at the end part of a reinforcement, and then concrete pouring and curing are carried out to complete the production of the precast concrete column body 1; aiming at the precast concrete column body 1 connected by adopting the prestressed finish rolling threaded steel bars, a precast column template and a steel reinforcement cage are firstly installed, meanwhile, post-tensioning finish rolling threaded steel bar pore-forming pipelines are pre-buried in the column according to design requirements, then concrete pouring and maintenance are carried out, and the production of the precast concrete column body 1 is completed.
The precast concrete beam body 2 is produced by adopting the traditional post-tensioning bonded prestress technology or the retarded bonded prestress technology; when the traditional post-tensioning bonding prestress technology is adopted for production, firstly, a template is installed, a reinforcement cage is hoisted, the reinforcement cage comprises a beam top reinforcement 10 and a beam bottom reinforcement 11, a beam first pore passage 12 and a beam second pore passage 13 are pre-embedded according to the designed positions, then concrete is poured, after the concrete reaches the designed strength, a beam inner prestressed reinforcement 14 penetrates into the beam second pore passage 13, tensioning is carried out, anchoring and pore passage grouting are carried out, and the production of the prefabricated prestressed concrete frame beam is completed; when the retarded adhesive prestress technology is adopted, prestressed ribs 14 in the retarded adhesive beam are installed according to the designed line shape while a reinforcement cage is installed, then concrete is poured, and after the concrete strength meets the design requirement, the prestressed ribs 14 in the retarded adhesive beam are tensioned, anchored and sealed, so that the production of the retarded adhesive precast concrete beam body 2 is completed; in addition, in the production stage of the precast concrete beam body 2, beam first pore channels 12 are reserved at four corners of the beam section according to the designed position before concrete pouring and are used for assembling the later-stage structure.
For the precast concrete slab body 3, the precast concrete slab body 3 can be a prestressed round hole slab, a prestressed double-T slab or a reinforced concrete composite slab according to structural span, load or design requirements.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The prefabricated concrete column comprises a prefabricated concrete column body (1) and a column first pore channel (5) formed in the prefabricated concrete column body (1), the prefabricated concrete beam is divided into a prefabricated prestressed concrete beam and a common reinforced concrete prefabricated beam, the prefabricated prestressed concrete beam and the common reinforced concrete prefabricated beam respectively comprise a prefabricated concrete beam body (2), and beam top reinforcing steel bars (10) and beam bottom reinforcing steel bars (11) arranged in the prefabricated concrete beam body (2), and the prefabricated concrete beam body (2) is arranged on the outer wall of one side of the prefabricated concrete column body (1); the beam top steel bars (10) and the beam bottom steel bars (11) are bent or cut off from the beam ends to the center, and the precast concrete column body (1) is of a full-length precast column structure or a sectional precast column structure; the precast concrete slab comprises a precast concrete slab body (3), wherein the precast concrete slab body (3) is one of a prestressed round hole plate, a prestressed double-T plate and a laminated slab, and a concrete laminated layer (4) is poured on the precast concrete slab body (3).
2. The fabricated concrete frame structure connected by prestress compression according to claim 1, wherein the precast concrete cylinders (1) are replaced by segment-type precast cylinder structures, the precast concrete cylinders (1) of the segment-type precast structures are vertically connected through grouting sleeves, or a second column channel (6) is formed in the top of each precast concrete cylinder (1), finish-rolled threaded steel bars penetrate through the second column channel (6), and the precast concrete cylinders (1) are connected with other precast concrete cylinders (1) through prestress generated by tensioning of the finish-rolled threaded steel bars.
3. The fabricated concrete frame structure connected by prestressed crimping according to claim 2, wherein a first beam hole (12) is formed in the precast concrete beam body (2) in a penetrating manner, a first column hole (5) matched with the first beam hole (12) is formed in the outer wall of the precast concrete column body (1), a prestressed steel strand (15) is installed in the first beam hole (12), the prestressed steel strand (15) is matched with the first column hole (5), and the precast concrete column body (1) and the precast concrete beam body (2) are crimped together by applying a pretensioning force to the prestressed steel strand (15).
4. The fabricated concrete frame structure of the prestressed compression joint connection as claimed in claim 3, wherein a second beam passage (13) is formed in the precast concrete beam body (2) of the precast prestressed concrete beam, the second beam passage (13) is of an arc structure, an in-beam prestressed tendon (14) is penetrated in the second beam passage (13), and both ends of the in-beam prestressed tendon (14) are anchored at both ends of the precast concrete beam body (2) through a beam-end stranded wire anchorage (16).
5. The fabricated concrete frame structure of prestressed compression joint as claimed in claim 3, wherein an exposed bracket (9) is arranged on the outer wall of the precast concrete column (1), the exposed bracket (9) is of a right-angled trapezoid structure, and the outer wall of the bottom of one end of the precast concrete beam body (2) is matched with the outer wall of the top of the exposed bracket (9).
6. The fabricated concrete frame structure of a prestressed compression joint as claimed in claim 3, wherein the two outer side walls of the precast concrete column (1) are provided with protrusions, a key groove (7) is formed between the two protrusions positioned at the same side, one end of the precast concrete beam body (2) is provided with a connecting key matched with the key groove (7), and the precast concrete beam body (2) is installed in the key groove (7) of the precast concrete column (1) through the connecting key.
7. The fabricated concrete frame structure of prestressed crimping connection of claim 3, characterized in that, be provided with dark bracket (8) on the precast concrete cylinder (1) outer wall, the both ends outer wall of precast concrete beam body (2) is provided with the notch with dark bracket (8) looks adaptation, and in dark bracket (8) embedding precast concrete beam body (2)'s the notch, precast concrete beam body (2) bottom outer wall flushed with dark bracket (8) bottom outer wall.
8. The fabricated concrete frame structure connected by prestressed compression according to any one of claims 1-7, characterized in that a high-strength mortar joint (17) is formed between the precast concrete cylinder (1) and the precast concrete beam body (2) during splicing, the high-strength mortar joint (17) between the precast concrete cylinder (1) and the precast concrete beam body (2) is a continuous structure, and mortar is filled in the high-strength mortar joint (17).
9. A construction method of an assembled concrete frame structure of prestress compression joint is characterized by comprising the following steps:
s1: the prefabricated concrete column (1), the prefabricated concrete beam body (2) and the prefabricated concrete plate body (3) are produced in a factory standardized mode;
s2: transporting and hoisting the components in place;
according to the construction progress requirement, the prefabricated parts are transported to a construction site in batches, and the parts are hoisted in place according to the design requirement and the part numbers; firstly, hoisting a precast concrete cylinder (1); the precast concrete column body (1) is divided into a through long precast column structure and a sectional precast column structure; when a through-length prefabricated column structure is hoisted, firstly, carrying out slurry sitting treatment on a corresponding interface of a foundation, after the column is in place, arranging a temporary support, and then grouting a sleeve according to the specification or design requirement to complete column installation;
when the grouting sleeve is adopted for connecting the sectional prefabricated column structure, the construction method is the same as the connection method of the full-length prefabricated column structure and the foundation; when prestress finish rolling threaded steel bars are adopted for connection, the foundation is grouted and then the bottom precast concrete column body (1) is hoisted, finish rolling threaded steel bars penetrate into a second pore passage (6) of the column and are connected with the finish rolling threaded steel bars pre-embedded in the foundation through a connector at the bottom of the column, and then tensioning and anchoring of the finish rolling threaded steel bars are carried out at the top of the column; the connection construction of the other layers of precast concrete columns (1) and the next layer of precast concrete column (1) is equal to the connection of the bottom layer column and the foundation, and after all the precast concrete columns (1) are installed, the grouting of finish-rolled threaded steel bar channels in the columns is completed from bottom to top;
s3: connecting beam-column contact surface through a pore, paving a plate and grouting a spliced seam;
after each layer of precast concrete column body (1) is installed, hoisting the precast concrete beam body (2) according to the construction sequence, and when a corbel-free beam column joint is constructed, establishing a temporary support at the end of the precast concrete beam body (2); during construction, the first pore canal (12) of the beam and the first pore canal (5) of the column are aligned and communicated; after all pore passages are connected, laying a precast concrete plate body (3), hoisting the precast concrete plate body (3) according to design requirements and component numbers, constructing the connection between the precast concrete plate body (3) and the precast concrete beam body (2) according to the current national standard, temporarily supporting the load transmitted by the precast concrete plate body (3) by brackets or temporary supports, and after the laying of the plate is finished, performing high-strength mortar crack pouring treatment on gaps at the contact surfaces of the precast concrete cylinder (1) and the precast concrete beam body (2);
s4: tensioning and anchoring the prestressed steel strand (15);
after the strength of the seam filling mortar at the abutted seam reaches the design requirement, a prestressed steel strand (15) is penetrated into a corresponding pore passage of the beam-column joint in a full-length manner, and tensioning, anchoring and grouting are carried out according to the design requirement, so that the beam-column forms a whole;
s5: pouring the concrete laminated layer (4) of the floor slab;
and (3) after the integral structure is finished, binding the reinforcing mesh of the concrete superposed layer (4) of the floor slab, and then pouring the concrete of the concrete superposed layer (4) according to the design requirement to finish the construction of the main structure.
10. The construction method of a fabricated concrete frame structure of prestressed press-fit connection according to claim 9, wherein the precast concrete cylinder (1) is produced in a manner of: the full-length prefabrication or layer-by-layer segmental prefabrication production is adopted; aiming at the precast concrete column body (1) connected by adopting the grouting sleeve, firstly, installing a precast column template and a reinforcement cage, installing the grouting sleeve at the end part of the reinforcement, and then, carrying out concrete pouring and curing to finish the production of the precast concrete column body (1); aiming at a precast concrete column body (1) connected by adopting a prestressed finish-rolled twisted steel, firstly, a precast column template and a reinforcement cage are installed, meanwhile, a post-tensioned finish-rolled twisted steel pore-forming pipeline is pre-buried in the column according to the design requirement, then concrete pouring and maintenance are carried out, and the production of the precast concrete column body (1) is completed;
the precast concrete beam body (2) is produced by adopting the traditional post-tensioning bonded prestress technology or the retarded bonded prestress technology; when the traditional post-tensioning bonding prestress technology is adopted for production, firstly, a template is installed, a reinforcement cage is hoisted, the reinforcement cage comprises a beam top reinforcement (10) and a beam bottom reinforcement (11), a beam first pore passage (12) and a beam second pore passage (13) are pre-buried according to the design position, then concrete is poured, after the concrete reaches the design strength, a beam inner prestress reinforcement (14) penetrates into the beam second pore passage (13), tensioning is carried out, anchoring and pore passage grouting are carried out, and the production of the prefabricated prestressed concrete frame beam is completed; when the retarded adhesive prestress technology is adopted, prestressed ribs (14) in a retarded adhesive beam are installed according to the designed line shape while a reinforcement cage is installed, then concrete is poured, and after the concrete strength meets the design requirement, the prestressed ribs (14) in the retarded adhesive beam are tensioned, anchored and sealed, so that the production of the retarded adhesive precast concrete beam body (2) is completed; in addition, in the production stage of the precast concrete beam body (2), beam first pore channels (12) are reserved at four corners of the beam section according to the design position before concrete pouring and are used for assembling the structure in the later stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570306.7A CN114396118A (en) | 2021-12-21 | 2021-12-21 | Fabricated concrete frame structure connected through prestress compression joint and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111570306.7A CN114396118A (en) | 2021-12-21 | 2021-12-21 | Fabricated concrete frame structure connected through prestress compression joint and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114396118A true CN114396118A (en) | 2022-04-26 |
Family
ID=81227709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111570306.7A Pending CN114396118A (en) | 2021-12-21 | 2021-12-21 | Fabricated concrete frame structure connected through prestress compression joint and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114396118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991301A (en) * | 2022-05-17 | 2022-09-02 | 中建科技集团有限公司 | Assembly type reinforced concrete structural system free of mold and support and assembly method thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735469A (en) * | 2016-02-23 | 2016-07-06 | 同济大学 | Partially-bonded precast prestressed concrete frame structure |
| CN105839775A (en) * | 2016-05-24 | 2016-08-10 | 东南大学 | Beam end crossed arc-shaped post-tensioned pre-stressed reinforcing steel dry-type assembling beam-column node |
| CN106193287A (en) * | 2016-07-13 | 2016-12-07 | 武汉理工大学 | Prestressing force assembly concrete node curved surface attachment structure |
| CN106677339A (en) * | 2017-03-10 | 2017-05-17 | 东南大学 | Assembly integral type concrete frame structure of dry-wet mixed connection of nodes and construction method |
| CN107165272A (en) * | 2017-06-22 | 2017-09-15 | 中国建筑股份有限公司 | Prestressing force assembly concrete frame joint attachment structure and its construction method |
| CN107503553A (en) * | 2017-09-21 | 2017-12-22 | 中国建筑股份有限公司 | Full prefabricated PC concrete frame energy dissipation component system and construction method |
| CN107587605A (en) * | 2016-07-07 | 2018-01-16 | 中恒建设集团有限公司 | A kind of complete precast prestressed fabricated construction and its construction method |
| CN207244839U (en) * | 2017-03-07 | 2018-04-17 | 河北工程大学 | A kind of Self-resetting precast concrete concrete frame joint |
| CN109469202A (en) * | 2018-12-12 | 2019-03-15 | 中国建筑技术集团有限公司 | Prestressed assembly integral concrete frame structure system and construction method thereof |
| CN211007040U (en) * | 2019-09-30 | 2020-07-14 | 申都设计集团有限公司 | Beam column node in assembled concrete frame structure |
| CN113107088A (en) * | 2021-04-09 | 2021-07-13 | 江苏科技大学 | Prestressed full-dry type connection assembly type concrete frame beam column joint |
| CN213741571U (en) * | 2020-07-29 | 2021-07-20 | 广东省建科建筑设计院有限公司 | Prefabricated column and beam column node for prefabricated concrete building structure reserved steel bar perforation |
| CN113417364A (en) * | 2021-04-30 | 2021-09-21 | 中国建筑第五工程局有限公司 | Precast concrete beam column connection structure and construction method thereof |
| CN113529940A (en) * | 2021-06-25 | 2021-10-22 | 吉林建筑大学 | Prestress assembly type manual hinge, self-adaptive damping structure system and construction method thereof |
-
2021
- 2021-12-21 CN CN202111570306.7A patent/CN114396118A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735469A (en) * | 2016-02-23 | 2016-07-06 | 同济大学 | Partially-bonded precast prestressed concrete frame structure |
| CN105839775A (en) * | 2016-05-24 | 2016-08-10 | 东南大学 | Beam end crossed arc-shaped post-tensioned pre-stressed reinforcing steel dry-type assembling beam-column node |
| CN107587605A (en) * | 2016-07-07 | 2018-01-16 | 中恒建设集团有限公司 | A kind of complete precast prestressed fabricated construction and its construction method |
| CN106193287A (en) * | 2016-07-13 | 2016-12-07 | 武汉理工大学 | Prestressing force assembly concrete node curved surface attachment structure |
| CN207244839U (en) * | 2017-03-07 | 2018-04-17 | 河北工程大学 | A kind of Self-resetting precast concrete concrete frame joint |
| CN106677339A (en) * | 2017-03-10 | 2017-05-17 | 东南大学 | Assembly integral type concrete frame structure of dry-wet mixed connection of nodes and construction method |
| US20200141110A1 (en) * | 2017-06-22 | 2020-05-07 | China State Construction Engineering Cororation Limited | Prestressed assembled concrete frame-joint connecting structure and constructing method thereof |
| CN107165272A (en) * | 2017-06-22 | 2017-09-15 | 中国建筑股份有限公司 | Prestressing force assembly concrete frame joint attachment structure and its construction method |
| CN107503553A (en) * | 2017-09-21 | 2017-12-22 | 中国建筑股份有限公司 | Full prefabricated PC concrete frame energy dissipation component system and construction method |
| WO2019056716A1 (en) * | 2017-09-21 | 2019-03-28 | 中国建筑股份有限公司 | Fully-assembled prestress concrete frame anti-seismic energy dissipation member system and construction method |
| CN109469202A (en) * | 2018-12-12 | 2019-03-15 | 中国建筑技术集团有限公司 | Prestressed assembly integral concrete frame structure system and construction method thereof |
| CN211007040U (en) * | 2019-09-30 | 2020-07-14 | 申都设计集团有限公司 | Beam column node in assembled concrete frame structure |
| CN213741571U (en) * | 2020-07-29 | 2021-07-20 | 广东省建科建筑设计院有限公司 | Prefabricated column and beam column node for prefabricated concrete building structure reserved steel bar perforation |
| CN113107088A (en) * | 2021-04-09 | 2021-07-13 | 江苏科技大学 | Prestressed full-dry type connection assembly type concrete frame beam column joint |
| CN113417364A (en) * | 2021-04-30 | 2021-09-21 | 中国建筑第五工程局有限公司 | Precast concrete beam column connection structure and construction method thereof |
| CN113529940A (en) * | 2021-06-25 | 2021-10-22 | 吉林建筑大学 | Prestress assembly type manual hinge, self-adaptive damping structure system and construction method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991301A (en) * | 2022-05-17 | 2022-09-02 | 中建科技集团有限公司 | Assembly type reinforced concrete structural system free of mold and support and assembly method thereof |
| CN114991301B (en) * | 2022-05-17 | 2023-11-28 | 中建科技集团有限公司 | Mould-free and support-free assembled reinforced concrete structure system and assembling method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109469202B (en) | Prestressed assembly integral concrete frame structure system and construction method thereof | |
| US10865557B2 (en) | Prestressed assembled concrete frame-joint connecting structure and constructing method thereof | |
| EP3263795B1 (en) | Composite structural wall and method of construction thereof | |
| CN106836479B (en) | Assembled prestressed concrete frame structure | |
| CN106677339A (en) | Assembly integral type concrete frame structure of dry-wet mixed connection of nodes and construction method | |
| CN108049498A (en) | The prefabricated post and Prefabricated beam connection structure and method of assembled architecture frame structure | |
| CN109914216B (en) | Assembled large-span ultra-high-performance concrete box girder combined node and connecting method thereof | |
| CN215054263U (en) | L-shaped connecting joint of prefabricated wall panel | |
| CN114396118A (en) | Fabricated concrete frame structure connected through prestress compression joint and construction method | |
| CN108468379A (en) | A kind of novel precast prestressed continuous beam connecting node of assembly concrete | |
| CN113374171B (en) | Recycled block concrete prefabricated assembled ring beam structure and construction method thereof | |
| CN215802289U (en) | Module connecting system for lightweight concrete modular integrated structure | |
| CN212772979U (en) | Prestress assembly type shear wall system | |
| CN210887572U (en) | Mixed reinforcement embedded low-prestress dry beam-column joint | |
| CN210529929U (en) | Beam column connecting node with replaceable energy-consuming steel bars | |
| CN212453065U (en) | Assembled building frame structure member | |
| CN113136996A (en) | Prestressed assembly type hollow sandwich plate structure system | |
| CN208363343U (en) | The fabricated shear wall of curved scissors stress separation | |
| CN216276371U (en) | Double-sleeve grouting connection full-assembly type reinforced concrete floor | |
| CN215670402U (en) | Prestressed assembly type hollow sandwich plate structure system | |
| CN220100204U (en) | Prefabricated parapet and coincide floor connection structure | |
| CN217711096U (en) | Post-tensioned prestressing beam column connecting structure | |
| CN212506887U (en) | L-shaped precast concrete wall connecting structure | |
| CN215406582U (en) | Local cast-in-place type connected node of modular precast concrete wall body | |
| CN211646902U (en) | Prestressed prefabricated floor slab and bidirectional prestressed prefabricated floor slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |