CN216740015U - Assembled full precast concrete frame structure - Google Patents
Assembled full precast concrete frame structure Download PDFInfo
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- CN216740015U CN216740015U CN202220241466.0U CN202220241466U CN216740015U CN 216740015 U CN216740015 U CN 216740015U CN 202220241466 U CN202220241466 U CN 202220241466U CN 216740015 U CN216740015 U CN 216740015U
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Abstract
An assembled full-precast concrete frame structure comprises precast frame columns, precast superposed beams, structural main reinforcements, structural stirrups, frame column grouting sleeves, precast superposed slabs, precast outer wall heat-insulation integrated plates and a foundation bearing platform; the upper part of the prefabricated frame column is embedded with a superposed beam connecting assembly which is formed by fixedly connecting one to four correspondingly arranged U-shaped supporting pieces; the U-shaped supporting piece comprises a U-shaped groove, and an inner side drawknot steel plate and an outer side drawknot steel plate which are connected between the notches of the U-shaped groove; frame column stirrup preformed holes are correspondingly formed in the two sides of the U-shaped groove; frame column main ribs penetrating through the U-shaped grooves and the inner side tie steel plates are also arranged in the prefabricated frame columns; frame column stirrups penetrating through the frame column stirrup preformed holes are also arranged in the prefabricated frame columns; and end socket plug-ins of the superposed beam are embedded at the two ends of the prefabricated superposed beam and are in plug-in fit with the U-shaped supporting pieces. The utility model realizes the aims of simple and convenient installation, high efficiency, rapidness, safety, reliability and controllable cost of the prefabricated structure.
Description
Technical Field
The utility model belongs to the field of buildings, and particularly relates to an assembled full-precast concrete frame structure.
Background
In recent years, as the national administration issues a plurality of documents about the fabricated building in succession and the national definition of the development targets of carbon neutralization and carbon peak-to-peak, the fabricated green building becomes the object of the vigorous advocation and development in each region, and the national provides a hard index of the assembly rate for each provincial and urban region.
At the present stage of China, the core problem restricting the development of the assembly type building is still the economic cost problem of the construction project. Obviously, the steel structure assembly type building has high application cost and cannot be well popularized within a certain period of time. The concrete frame and the frame shear structure are still the main structural forms of industrial and civil buildings. The application of prefabricated concrete structures is also the main development direction in the present stage.
Cast-in-place concrete frame structure, core atress node are beam column handing-over core area. The assembly type frame structure adopts a construction form of field installation of factory prefabricated components, and the core technology of the assembly type frame structure still solves the connection problem of stress parts in a beam column core area. The beam column node is used as a stress weak point of the structure and is also a main reason for restricting the popularization and the application of the assembled structure.
The two installation methods that the prefabricated concrete structure mainly adopted at present stage of china, the first one adopt steel structural component as nuclear domain connecting elements, utilize the mixed frame structural style of bolted connection form and then accomplish the structural connection of beam column, for example: CN 108457422A; the second kind is that reserve beam column core region position when adopting prefabricated frame post, frame roof beam and superimposed sheet adopt full hall to support supplementary installation, and the half prefabricated frame structure form of the whole cast-in-place of back formwork that hoists to take one's place, for example: CN 207919747U.
The first method comprises the following steps: the mixed frame structure is a connection form of adopting a steel structure core component to be connected with frame column bolts from top to bottom and connected with frame beam bolts from left to right. The prefabricated installation problem of the concrete structure is solved by utilizing the steel structure construction nodes. In the stress section of the core area of the original frame column, the sectional area of the beam column core area is reduced for ensuring the installation of bolts. Meanwhile, a plurality of connecting nodes are arranged at the upper part, the lower part and the periphery of the core area of the frame column, the later-stage concrete secondary coating pouring only solves the protection effect of the steel structure core component, the frame column is connected with the frame beam by profile steel, and the sectional area of the frame beam is also reduced. The structural form is actually against the structural earthquake-resistant criterion of the strong node weak member and the strong column weak beam. The steel construction has essential difference with reinforced concrete structure, utilizes the design of steel construction node, connects reinforced concrete frame structure, in case the node junction can not reach the overall structure requirement, whole structure will be in dangerous state.
And the second method comprises the following steps: half prefabricated frame construction adopts prefabricated component to reserve beam column core space position, and frame roof beam, superimposed sheet adopt full hall to support supplementary hoist and mount, later stage integral erection's mode, and braced system work load is very big, and contrast tradition cast-in-place reinforced concrete structure form cost promotes greatly, does not have obvious popularization advantage, and each direction prefabricated frame roof beam reserves main muscle and concentrates crisscross in core space to and later stage frame column stirrup ligature, and the more on-the-spot ligature degree of difficulty of whole construction increases.
Meanwhile, the construction cost of the two fabricated structure systems is greatly improved compared with that of a cast-in-place concrete frame structure, and the fabricated structure is not beneficial to development and popularization of fabricated structures.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides an assembled full precast concrete frame structure and a method.
The utility model is realized by the following technical scheme: the utility model provides a full precast concrete frame structure of assembled, includes prefabricated frame post, prefabricated superposed beam, the main reinforcement, the stirrup, frame post grout sleeve, prefabricated superimposed sheet, prefabricated external wall insulation intergral template, its technical essential is: the upper part of the prefabricated frame column is embedded with a superposed beam connecting assembly which is formed by fixedly connecting one to four correspondingly arranged U-shaped supporting pieces; the U-shaped supporting piece comprises a U-shaped groove, and an inner side drawknot steel plate and an outer side drawknot steel plate which are connected between the notches of the U-shaped groove; frame column stirrup preformed holes are correspondingly formed in the two sides of the U-shaped groove; frame column main ribs penetrating through the U-shaped grooves and the inner side tie steel plates are also arranged in the prefabricated frame columns; frame column stirrups penetrating through the frame column stirrup preformed holes are also arranged in the prefabricated frame columns; and end socket plug-ins of the superposed beam are embedded at two ends of the prefabricated superposed beam and are in plug-in fit with the U-shaped supporting pieces.
Furthermore, the U-shaped groove and the plug-in at the end of the superposed beam are respectively provided with corresponding plug-in bolt connection hole sites.
Furthermore, two sides of the prefabricated superposed beam are provided with superposed beam preformed holes.
Further, bolt operation holes are further formed in the two sides of the U-shaped groove.
Furthermore, the U-shaped supporting piece further comprises an isolation steel wire mesh arranged between the U-shaped grooves.
Furthermore, the prefabricated superposed beam is also provided with a lower superposed beam main rib fixedly connected with the lower end of the superposed beam end plug-in piece.
Furthermore, the prefabricated superposed beam is also provided with an upper superposed beam main rib corresponding to the lower superposed beam main rib.
Furthermore, the middle part of the prefabricated composite beam is also provided with a secondary beam support piece.
Furthermore, reserved bolt holes corresponding to the reserved holes of the superposed beams are formed in the prefabricated outer wall heat-insulation integrated plate and are fixedly connected with the prefabricated frame superposed beams through bolts; the joint between the prefabricated external wall heat-insulation integrated plates is arranged at the height of the interlayer external windowsill.
The utility model has the beneficial effects that:
1. the prefabricated frame column stress core area is connected in a mode that a U-shaped support piece is embedded in the prefabricated frame column, and the U-shaped support piece is used as a frame column stress extension area to form a hidden bracket form and the prefabricated frame column to be an integral structure. Realize the prefabricated frame construction of complete precast concrete structure, whole cost contrast cast in situ concrete frame system can not improve.
2. The installation of prefabricated frame post, upper and lower post adopt grout muffjoint, and the construction method is simple and easy, and the quality is easily controlled, and the frame post hoist and mount finishes can carry out the hoist and mount of coincide roof beam after carrying out interim fixed stay, and the construction progress is fast, is favorable to promoting.
3. The prefabricated superposed beams and the prefabricated frame columns adopt a connection form of bolt-assisted installation and integral post-pouring. The main reinforcement on the prefabricated superposed beam is anchored into the frame column or penetrates through the prefabricated frame column to be mechanically connected with the main reinforcement on the superposed beam at the other end; the lower main reinforcement is anchored in the U-shaped supporting piece, so that the section size and the stress form of the reinforced concrete core area are not changed, and a large number of temporary supporting structures can be saved.
4. After the main reinforcement at the upper part of the prefabricated composite beam is hoisted, the main reinforcement is welded with the upper part of the U-shaped supporting piece of the frame column, so that the normal stress of the prefabricated composite beam in the hoisting construction process is ensured, and the prefabricated composite beam can be used as a support at the end part of the composite slab after being installed, so that the composite slab is hoisted.
5. The waist of the prefabricated composite beam is provided with a preformed hole which can be used as a mounting support of the composite slab, the preformed hole of the outer beam at the later stage can be used as a mounting hole of an outer wall panel, and the inner beam can be used as a water and electricity wiring hole for secondary decoration.
6. The prefabricated external wall insulation integrated plate is installed by adopting a staggered-layer installation process, the connecting stubbles are arranged at the height position of the interlayer external windowsill, and the prefabricated external wall insulation integrated plate simultaneously has the function of constructing an external protection facility so as to achieve the function that the prefabricated external wall insulation integrated plate can be used as the external protection facility.
7. This prefabricated assembled frame construction can improve installation work efficiency greatly, reduces engineering cost. The method meets the structural earthquake-resistant criterion of 'strong node weak members and strong column weak beams' and also meets the technical requirements of member installation of the fabricated building.
The assembly type completely prefabricated frame structure adopts modular diagram model selection. And analyzing the prefabricated frame columns, the prefabricated composite beams and the prefabricated composite slabs according to the use positions, the structure types, the span data, the load distribution and the like to determine a model selection chart of the basic structure classification module. The special part designer adds related nodes according to the basic structure. The prefabricated part is standardized, the system is classified and modularized, the design is selected and charted, the batch production of prefabrication is realized, the workload of a design link is greatly reduced, and the aims of simple and convenient installation, high efficiency, rapidness, safety, reliability and controllable cost of the prefabricated structure are really realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged schematic sectional view of part A of the present invention;
FIG. 3 is a schematic block diagram of a connection structure frame of the present invention;
fig. 4 is a schematic structural diagram of the composite beam connecting assembly of the present invention.
The sequence numbers of the main parts in the figure illustrate that: 1. prefabricating a frame column; 101. grouting a sleeve for the frame column; 102. main ribs of the frame columns; 103. a frame column stirrup; 2. prefabricating a superposed beam; 201. main ribs are arranged on the superposed beams; 202. the lower main rib of the superposed beam; 203. reserving holes in the superposed beams; 204. pouring the reserved height; 3. prefabricating a laminated slab; 4. a U-shaped support; 401. an inner drawknot steel plate; 402. drawing and tying the steel plate at the outer side; 403. the plug-in part is screwed with the hole site; 404. a frame column stirrup preformed hole; 405. isolating a steel wire mesh; 406. a bolt working hole; 407. a U-shaped groove; 5. an end plug-in of the superposed beam; 6. a secondary beam support; 7. mounting support steel bars on the laminated slab; 8. a laminated slab support; 9. prefabricating an external wall heat insulation integrated plate; 10. building a window on the outer wall; 11. an exterior wall panel support; 12. a base bearing platform.
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Detailed Description
The present invention will be described in detail below with reference to fig. 1 to 3 by way of specific examples.
Example 1
The assembly type fully-precast concrete frame structure comprises precast frame columns, precast superposed beams, structural main reinforcements, structural stirrups, frame column grouting sleeves, precast superposed slabs and a precast outer wall heat-insulation integrated plate, wherein a superposed beam connecting assembly is pre-embedded in the upper parts of the precast frame columns 1 and consists of one to four U-shaped supporting pieces 4 which are correspondingly arranged in a fixed connection mode, the number of the U-shaped supporting pieces is determined according to the number of the precast superposed beams 2 connected to the precast frame columns, the superposed beam connecting assembly comprises a straight L-shaped U-shaped supporting piece combination for connecting two precast superposed beams, a T-shaped U-shaped supporting piece combination for connecting three precast superposed beams, a cross U-shaped supporting piece combination for connecting four precast superposed beams and the like; the U-shaped supporting piece comprises a U-shaped groove 407, and an inner side tie steel plate 401 and an outer side tie steel plate 402 which are connected between notches of the U-shaped groove; frame column stirrup preformed holes 404 are correspondingly formed in the two sides of the U-shaped groove; a frame column main rib 102 penetrating through the U-shaped groove and the inner side drawknot steel plate is also arranged in the prefabricated frame column; frame column stirrups 103 which penetrate through the frame column stirrup preformed holes are also arranged in the prefabricated frame columns; and the two ends of the prefabricated superposed beam are embedded with superposed beam end plug-in units 5, and the superposed beam end plug-in units are in plug-in fit with the U-shaped support units.
Corresponding plug-in bolt connection hole sites 403 are respectively arranged on the U-shaped groove and the plug-in at the end of the superposed beam, and the plug-in at the end of the superposed beam and the U-shaped support which are mutually plugged are fixed through bolts of the plug-in bolt connection hole sites.
The two sides of the prefabricated superposed beam are provided with superposed beam preformed holes 203 which are used for inserting the superposed slab mounting support steel bars 7 and are used for being mounted and matched with the prefabricated superposed slab 3; in the later process, the preformed hole of the peripheral superposed beam can be used as an external wall panel for installation and use, and the preformed hole of the internal superposed beam can be used as a water and electricity wiring hole for secondary decoration.
Bolt work holes 406 are also provided on both sides of the U-shaped groove, which facilitate handling during construction.
The U-shaped supporting piece further comprises an isolating steel wire mesh 405 arranged between the U-shaped grooves, and the isolating steel wire mesh is used for intercepting concrete when the prefabricated frame column is poured, so that a construction joint is formed, and combination of secondary pouring is facilitated.
And a superposed beam lower main rib 202 fixedly connected with the lower end of the superposed beam end plug-in is also arranged on the prefabricated superposed beam, and the superposed beam lower main rib is anchored into the U-shaped supporting piece and fixedly connected through secondary pouring.
The upper end of the prefabricated superposed beam is also provided with an upper superposed beam main rib 201 corresponding to the lower superposed beam main rib, and the upper superposed beam main rib is anchored into the upper end of the prefabricated frame column or penetrates through the upper end of the prefabricated frame column to be mechanically connected with the upper superposed beam rib at the other end.
And a secondary beam supporting piece 6 is also arranged in the middle of the prefabricated superposed beam, has the same structure as the U-shaped supporting piece and is used for mounting a node for the secondary beam.
The frame post owner muscle of prefabricated frame post passes the one end of prefabricated frame post, is provided with the frame post grout sleeve 101 that corresponds the grafting with frame post owner muscle in the inside of prefabricated frame post other end.
The prefabricated external wall heat insulation integrated plate 9 is provided with reserved bolt holes corresponding to the reserved holes of the superposed beams and is fixedly connected with the prefabricated frame superposed beams through bolts; the prefabricated external wall heat-insulation integrated plate adopts a staggered-layer installation construction process, and connecting stubbles are arranged at the height of an interlayer external windowsill.
The construction method comprises the following steps:
reserving frame column main ribs corresponding to a frame column grouting sleeve at the lower end of a prefabricated frame column at the upper end of a cast-in-situ foundation bearing platform 12;
secondly, paying off and positioning, correcting main ribs of the frame columns on the foundation bearing platform, and cleaning and removing concrete surface layer residues;
hoisting the prefabricated frame column, inserting and fixing the prefabricated frame column with the main rib of the frame column through a frame column grouting sleeve at the lower end of the prefabricated frame column, and temporarily supporting and correcting;
hoisting the prefabricated superposed beam according to the planned construction section, inserting and matching the superposed beam end socket inserts pre-embedded at two ends of the prefabricated superposed beam with the U-shaped support pieces on the prefabricated frame column, anchoring the lower main ribs of the superposed beam into the U-shaped support pieces, and fixing the superposed beam by screwing hole sites through the inserts after correction; then, anchoring the main reinforcement on the superposed beam into the top end of the frame column or mechanically connecting the main reinforcement on the superposed beam at the other end;
after the prefabricated frame superposed beam of the first construction section is installed, continuing to perform two-section hoisting, and simultaneously performing grouting work on the connecting part of the prefabricated frame column and the foundation pile cap through a frame column grouting sleeve in the first construction section, and performing continuous line production construction;
arranging superposed beam preformed holes 203 at two sides of the prefabricated superposed beams, inserting laminated slab mounting support steel bars 7 with the diameter of 20mm as temporary fulcrums of a plurality of prefabricated laminated slabs, and mounting transverse battens or metal square pipes on the fulcrums along the beam direction to form a laminated slab support 8; overlapping the prefabricated composite slab into the upper end of the prefabricated composite beam for 15mm, and anchoring the whisker rib reserved in the prefabricated composite slab into the middle line of the prefabricated composite beam;
hoisting the prefabricated laminated slab to the laminated slab support, and installing the reserved gap templates between the laminated slabs;
installing a matched prefabricated external wall insulation integrated plate, wherein the prefabricated external wall plate is provided with reserved bolt holes corresponding to the reserved holes of the superposed beams and is fixedly connected with the prefabricated frame superposed beams through bolts; an outer wall building window is arranged on an outer wall structure consisting of the prefabricated outer wall panels; an external wall panel support 11 is arranged on the outer side of the prefabricated superposed beam on the periphery of the frame structure of one layer and used for fixing the prefabricated external wall panel of one layer; the prefabricated external wall heat-insulation integrated plate is installed by adopting a staggered-layer installation process, and connecting stubbles are arranged at the height of an interlayer external windowsill, so that the external wall plate can serve as a protective facility outside the construction;
ninthly, pre-burying the water and electricity pipeline at the upper end of the prefabricated laminated slab after installation, and performing secondary reinforcement on the prefabricated laminated slab on site;
performing secondary concrete pouring on the same frame column mark on the inside of the U-shaped supporting piece and the main rib mounting node under the laminated beam at the position of the main rib on the laminated beam at the upper end of the prefabricated frame column and the whole prefabricated laminated slab according to the pouring reserved height 204 at the position of the main rib at the upper end of the prefabricated frame column and the whole prefabricated laminated slab at the position of the reserved height 204 at the position of the main rib at the lower end of the U-shaped supporting piece;
⑪ after the cast-in-place concrete board reaches the strength required by the specification, positioning the floor and setting out the line;
⑫ the upper and lower adjacent prefabricated frame columns are connected by the corresponding main ribs of the frame columns and the grouting sleeves. Repeating the construction process of the second step- ⑪, and carrying out hoisting construction layer by layer;
⑬ the construction of filling wall masonry and plastering in the frame structure is followed at the later stage.
The utility model adopts modular diagram model selection. And analyzing the prefabricated composite slab of the prefabricated composite beam of the prefabricated frame column according to the use position, the structure type, the span data, the load distribution and the like to determine a model selection chart of the basic structure classification module. The special part designer adds related nodes according to the basic structure. The prefabricated part is standardized, the system is classified and modularized, the design is selected and charted, the batch production of prefabrication is realized, the workload of a design link is greatly reduced, and the aims of simple and convenient installation, high efficiency, rapidness, safety, reliability and controllable cost of the prefabricated structure are really realized.
Claims (9)
1. The utility model provides a full precast concrete frame structure of assembled, includes prefabricated frame post, prefabricated superposed beam, the main muscle of structure, the structure stirrup, frame post grout sleeve, prefabricated superimposed sheet, prefabricated external wall insulation intergral template, basic cushion cap, its characterized in that: the upper part of the prefabricated frame column is embedded with a superposed beam connecting assembly which is formed by fixedly connecting one to four correspondingly arranged U-shaped supporting pieces; the U-shaped supporting piece comprises a U-shaped groove, and an inner side drawknot steel plate and an outer side drawknot steel plate which are connected between the notches of the U-shaped groove; frame column stirrup preformed holes are correspondingly formed in the two sides of the U-shaped groove; frame column main ribs penetrating through the U-shaped grooves and the inner side tie steel plates are also arranged in the prefabricated frame columns; frame column stirrups penetrating through the frame column stirrup preformed holes are also arranged in the prefabricated frame columns; and end socket plug-ins of the superposed beam are embedded at two ends of the prefabricated superposed beam and are in plug-in fit with the U-shaped supporting pieces.
2. The fabricated fully precast concrete frame structure of claim 1, wherein: and the U-shaped groove and the plug-in at the end of the superposed beam are respectively provided with corresponding plug-in bolt connection hole sites.
3. The fabricated fully precast concrete frame structure of claim 1, wherein: bolt operation holes are further formed in the two sides of the U-shaped groove.
4. The fabricated fully precast concrete frame structure of claim 1, wherein: the U-shaped supporting piece further comprises an isolation steel wire mesh arranged between the U-shaped grooves.
5. The fabricated fully precast concrete frame structure of claim 1, wherein: and the two sides of the prefabricated superposed beam are provided with superposed beam preformed holes.
6. The fabricated fully precast concrete frame structure of claim 1, wherein: and the prefabricated superposed beam is also provided with a superposed beam lower main rib fixedly connected with the lower end of the superposed beam end plug-in.
7. The fabricated fully precast concrete frame structure of claim 1, wherein: and the prefabricated superposed beam is also provided with an upper superposed beam main rib corresponding to the lower superposed beam main rib.
8. The fabricated fully precast concrete frame structure of claim 1, wherein: and the middle part of the prefabricated superposed beam is also provided with a secondary beam support piece.
9. The fabricated fully precast concrete frame structure of claim 1, wherein: the prefabricated external wall heat-insulation integrated plate is provided with reserved bolt holes corresponding to the reserved holes of the superposed beams and is fixedly connected with the prefabricated frame superposed beams through bolts; the joint between the prefabricated external wall heat-insulation integrated plates is arranged at the height of the interlayer external windowsill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220241466.0U CN216740015U (en) | 2022-01-29 | 2022-01-29 | Assembled full precast concrete frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220241466.0U CN216740015U (en) | 2022-01-29 | 2022-01-29 | Assembled full precast concrete frame structure |
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| CN216740015U true CN216740015U (en) | 2022-06-14 |
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| CN202220241466.0U Active CN216740015U (en) | 2022-01-29 | 2022-01-29 | Assembled full precast concrete frame structure |
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- 2022-01-29 CN CN202220241466.0U patent/CN216740015U/en active Active
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Address after: No. 31012a, floor 1, Hongxing Building Materials City, No. 2 Taishan Road, Xinglongtai District, Panjin City, Liaoning Province, 124007 Patentee after: Liaoning Zhongye Technology Co.,Ltd. Address before: 124007 business network 31012a, 1st floor, Hongxing Building Materials City, No. 2 Taishan Road, Xinglongtai District, Jinzhou City, Liaoning Province Patentee before: Liaoning Zhongye Technology Co.,Ltd. |