CN204983143U - End muscle precast concrete frame construction excels in - Google Patents

End muscle precast concrete frame construction excels in Download PDF

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Publication number
CN204983143U
CN204983143U CN201520724176.1U CN201520724176U CN204983143U CN 204983143 U CN204983143 U CN 204983143U CN 201520724176 U CN201520724176 U CN 201520724176U CN 204983143 U CN204983143 U CN 204983143U
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CN
China
Prior art keywords
precast concrete
steel bar
muscle
shaped keyway
reinforcing bar
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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.)
Expired - Fee Related
Application number
CN201520724176.1U
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Chinese (zh)
Inventor
郭正兴
管东芝
刘家彬
于建兵
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Southeast University
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Southeast University
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Priority to CN201520724176.1U priority Critical patent/CN204983143U/en
Application granted granted Critical
Publication of CN204983143U publication Critical patent/CN204983143U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an end muscle precast concrete frame construction excels in, including precast concrete post, precast concrete roof beam, breast portion atress reinforcing bar, U -shaped keyway, bridge bearing rod, the airtight stirrup of rectangle, bridge and the ordinary reinforcing bar of back, the beam -ends of precast concrete roof beam leaves U -shaped keyway and breast portion atress reinforcing bar adoption high tensile reinforcement, breast portion atress reinforcing bar top U -shaped keyway within range is provided with the bridge bearing rod, adds the airtight stirrup of rectangle around breast portion atress reinforcing bar through the bridge bearing rod in the U -shaped keyway, forms the bridge, breast portion atress reinforcing bar stretches out the beam -ends to upwards bent the formation crotch, precast concrete post owner muscle is avoided to the nose side bend, and the anchor is in beam -column connection node core space. The utility model discloses the prefabricated assembly frame construction anti -seismic performance of structure reinforcing improves the universality of component production and the installation of on -the -spot node to accord with the main trend of using widely the high tensile reinforcement.

Description

Muscle Precast Concrete Frame of the high-strength end
Technical field
The utility model relates to muscle Precast Concrete Frame of a kind of high-strength end, belongs to construction work concrete frame structure technical field.
Background technology
Precast concrete can significantly improve construction ability and construction speed, save a large amount of labour, ensure build guality, and be conducive to the requirement reaching " four joint one environmental protection ", go into overdrive to carry out " industrialization of construction industry, housing industrialization " in country, under promoting the background of green building and green construction, there is good development prospect.The prefabrication and assembly construction frame structure system ubiquity that can be put at present apply the problems such as precision processing request is high, applicability is not enough, construction is inconvenient, and this makes prefabrication and assembly construction frame construction application advantage and not obvious.
Utility model content
The purpose of this utility model is the bottleneck overcoming existing Precast Concrete Frame scale application; muscle Precast Concrete Frame of a kind of high-strength end is provided; this structure can reduce required precision prefabricated units being manufactured to steel bar stress layout in central sill; improve the universality of the production of prefabrication and assembly construction frame structure component and on-the-spot node installation, effectively solve the problem.
The technical solution adopted in the utility model is: muscle Precast Concrete Frame of a kind of high-strength end, comprises steel bar stress bottom precast concrete column, precast concrete beam, beam, U-shaped keyway, core roof beam structure stud, rectangular tight stirrup, core beam and back plain bars;
Described precast concrete column is configured with vertical reinforcement, and described precast concrete beam is shelved on the concrete cover of precast concrete column, forms beam-column connection;
The beam-ends of described precast concrete beam leaves U-shaped keyway and bottom beam, steel bar stress adopts high tensile reinforcement, core roof beam structure stud is provided with within the scope of U-shaped keyway above steel bar stress bottom described beam-ends, in U-shaped keyway, set up the rectangular tight stirrup around steel bar stress bottom beam by core roof beam structure stud, form core beam;
Bottom described beam, steel bar stress stretches out beam-ends, and upwards bends up formation crotch, and extension lateral bending avoids the main muscle of precast concrete column, is anchored in beam-column connection core space;
Described precast concrete beam installs back plain bars, and together with whole beam-column connection region cast-in-situ concrete, forms assembled integral connected node.
As preferably, bottom described beam, steel bar stress adopts 600MPa level high tensile reinforcement, diameter takes 12mm to 16mm, high tensile reinforcement stretches out beam-ends certain length above trough floor, end upwards bends up formation crotch, it is bending flexibly that beam-ends high tensile reinforcement can utilize its flexibility to do from U-lag starting point, can avoid post muscle smoothly and anchor in node area, facilitate the prefabricated and on-the-spot node installation of beam in node installation process.
As preferably, arrange the steel bar welding net with diaphragms effect in the concrete cover bottom described beam between steel bar stress to component epidermis, improve span centre crack developing situation.
As preferably, the reasonable altitudes of described beam-column connection both sides U-shaped keyway and joint cores places additional straight reinforcing bar, strengthen the bending resistance of beam column piece face place beam-ends, make its plastic hinge under earthquake cyclic reverse loading realize outer moving.
Beneficial effect: (1) the utility model adopts high tensile reinforcement as the precast concrete beam of bottom steel bar stress, can reduce beam steel using amount or reduce beam section, reaching the object of saving material; (2) prefabricated beam-ends arranges certain length U-shaped groove, and groove inner concrete and node concrete monobloc cast, improve the shearing resistance on beam column mating face.In addition, the setting of groove, can increase the free bend segment length of high-strength muscle, utilizes the flexibility of small-sized high tensile reinforcement to carry out spatial intersecting bending easily, the construction difficult problem that when thoroughly solution precast beam is in place, at the bottom of different directions beam, reinforcing bar and post muscle easily collide; (3) continuous, the monobloc cast of node concrete of back reinforcing bar, the reinforcement of beam keyway inner core beam part, realize strong ties node, can give full play to and improve the shock resistance of frame construction.
Accompanying drawing explanation
Fig. 1 is precast concrete beam schematic diagram of the present utility model;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is connected node schematic diagram of the present utility model;
Fig. 4 is the sectional view of Fig. 3.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As illustrated in fig. 1 and 2: muscle Precast Concrete Frame precast beam of the high-strength end; two ends arrange U-shaped keyway 1; bottom beam, steel bar stress 2 adopts 12mm, 14mm, 16mm small-sized 600MPa level heat treatment high tensile reinforcement with ribbing with certain flexibility; stretch out at beam link; upwards bend up formation crotch; on high-strength muscle top, core roof beam structure stud 3 is set; for the formation of core beam; by arranging the steel bar welding net 4 with diaphragms effect in the concrete cover of advocating between muscle to component epidermis at the bottom of beam, improve cracking situation in position in girder span.
As shown in Figures 3 and 4: muscle Precast Concrete Frame connected node of the high-strength end, after being configured with precast concrete column 5 installation in position of vertical reinforcement, precast concrete beam 6 is lifted and is shelved on precast concrete column 5 concrete cover temporarily, bottom beam-ends, steel bar stress 2 is according to the physical location of on-the-spot post vertical reinforcement, manually be bent to form interlaced arrangement, stretch into node area and carry out anchoring, the small rectangular closed stirrup 7 around high-strength muscle is set up in beam paragraph key groove, form core beam 8, in node both sides U-lag and joint cores, certain altitude puts additional straight reinforcing bar 9 again, back plain bars 10 is inserted in beam stirrup, and colligation is fixed, last cast in situs node area concrete 11, form fabricated assembly overall beam-column connection.
Below by reference to the accompanying drawings embodiment of the present utility model is described in detail, but the utility model is not limited to described embodiment.For those of ordinary skill in the art, in the scope of principle of the present utility model and technological thought, embodiment is carried out to these embodiments and carries out multiple change, amendment, replacement and distortion and still fall in protection domain of the present utility model.

Claims (4)

1. the muscle Precast Concrete Frame of the high-strength end, is characterized in that: comprise steel bar stress bottom precast concrete column, precast concrete beam, beam, U-shaped keyway, core roof beam structure stud, rectangular tight stirrup, core beam and back plain bars;
Described precast concrete column is configured with vertical reinforcement, and described precast concrete beam is shelved on the concrete cover of precast concrete column, forms beam-column connection;
The beam-ends of described precast concrete beam leaves U-shaped keyway and bottom beam, steel bar stress adopts high tensile reinforcement, core roof beam structure stud is provided with within the scope of U-shaped keyway above steel bar stress bottom described beam, in U-shaped keyway, set up the rectangular tight stirrup around steel bar stress bottom beam by core roof beam structure stud, form core beam;
Bottom described beam, steel bar stress stretches out beam-ends, and upwards bends up formation crotch, and extension lateral bending avoids the main muscle of precast concrete column, is anchored in beam-column connection core space;
Described precast concrete beam installs back plain bars, and together with whole beam-column connection region cast-in-situ concrete, forms assembled integral connected node.
2. muscle Precast Concrete Frame of the high-strength end according to claim 1, is characterized in that: bottom described beam, steel bar stress adopts 600MPa level high tensile reinforcement, and high tensile reinforcement diameter adopts 12mm to 16mm.
3. muscle Precast Concrete Frame of the high-strength end according to claim 1, is characterized in that: arrange the steel bar welding net with diaphragms effect in the concrete cover bottom described beam between steel bar stress to component epidermis.
4. muscle Precast Concrete Frame of the high-strength end according to claim 1, is characterized in that: additional straight reinforcing bar is placed in the top of described beam-column connection both sides U-shaped keyway and joint cores.
CN201520724176.1U 2015-09-17 2015-09-17 End muscle precast concrete frame construction excels in Expired - Fee Related CN204983143U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520724176.1U CN204983143U (en) 2015-09-17 2015-09-17 End muscle precast concrete frame construction excels in

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520724176.1U CN204983143U (en) 2015-09-17 2015-09-17 End muscle precast concrete frame construction excels in

Publications (1)

Publication Number Publication Date
CN204983143U true CN204983143U (en) 2016-01-20

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105256891A (en) * 2015-09-17 2016-01-20 东南大学 Prefabricated concrete frame structure with high-strength bottom bars
CN106049675A (en) * 2016-07-26 2016-10-26 沈阳建筑大学建筑设计研究院 Docking connection construction of prefabricated assembly concrete superposed beams
CN106812244A (en) * 2017-02-14 2017-06-09 杨志业 The preparation method of the continuous superposed floor of precast beam, prefabricated PC and superstructure
CN108060781A (en) * 2017-11-24 2018-05-22 永州远大建筑工业有限公司 More beam connection structures and its construction method for hanging
CN108999282A (en) * 2018-09-06 2018-12-14 苏州古镇联盟建筑设计有限公司 One kind turning over Cantilever Beams bean column node construction and its construction method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105256891A (en) * 2015-09-17 2016-01-20 东南大学 Prefabricated concrete frame structure with high-strength bottom bars
CN105256891B (en) * 2015-09-17 2018-02-06 东南大学 High-strength bottom muscle Precast Concrete Frame
CN106049675A (en) * 2016-07-26 2016-10-26 沈阳建筑大学建筑设计研究院 Docking connection construction of prefabricated assembly concrete superposed beams
CN106812244A (en) * 2017-02-14 2017-06-09 杨志业 The preparation method of the continuous superposed floor of precast beam, prefabricated PC and superstructure
CN108060781A (en) * 2017-11-24 2018-05-22 永州远大建筑工业有限公司 More beam connection structures and its construction method for hanging
CN108060781B (en) * 2017-11-24 2020-02-04 永州远大建筑工业有限公司 Multi-beam connecting structure and hoisting construction method thereof
CN108999282A (en) * 2018-09-06 2018-12-14 苏州古镇联盟建筑设计有限公司 One kind turning over Cantilever Beams bean column node construction and its construction method
CN108999282B (en) * 2018-09-06 2020-12-15 苏州古镇联盟建筑设计有限公司 Upturning cantilever beam-column joint structure and construction method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20200917