CN109267681A - Overlap thick cored slab assembling frame structure - Google Patents
Overlap thick cored slab assembling frame structure Download PDFInfo
- Publication number
- CN109267681A CN109267681A CN201811031450.1A CN201811031450A CN109267681A CN 109267681 A CN109267681 A CN 109267681A CN 201811031450 A CN201811031450 A CN 201811031450A CN 109267681 A CN109267681 A CN 109267681A
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- Prior art keywords
- thick
- concrete
- frame structure
- overlapping
- cored slab
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
- 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
- E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
- E04B5/046—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement with beams placed with distance from another
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of thick cored slab assembling frame structures of overlapping, it include: to overlap thick cassette ceiling, the flat Vierendeel girder of width and precast concrete column, precast concrete column is indulged muscle and is connected by sleeve grouting, wherein, it overlaps thick cassette ceiling to be made of precast concrete bottom plate, weight-reducing material, cast-in-place concrete girt strip and top plate, it is big to be applicable in span.The structure will overlap thick cored slab in the construction process and pour together with the flat Vierendeel girder of width, in conjunction with the prefabricated post using traditional sleeve grouting connection, construction efficiency is greatly improved, economic cost is reduced, the building scope of application is improved, structure is made to obtain better anti-seismic performance.
Description
Technical field
The present invention relates to building structure technology field, in particular to a kind of thick cored slab assembling frame structure of overlapping.
Background technique
With the further development of China's building industrialization, the multilayer in a large amount of multilayer public building and cities and towns, rural area
Residential housing will also use prefabricated concrete structure, and assembly concrete frame structure has broad application prospects.As
Meet the structure type of building industrialization production model, prefabricated assembled concrete structure is easy to control with product quality, applies
Work speed is fast, improves the environment of construction site, and reduce concrete early-age shrinkage and thermal cracking, and structure durability waits well crowds
More advantages are that traditional construction mode is promoted to have to what the modernization constructions modes such as intensive, saving, green, environmental protection, science and technology changed
Effect approach is the new support of green building, is worth promoting.
Numerous scholars be directed to using different Vertical bar connection technologies (including sleeve grouting connection, slurry anchor overlap joint connection, bottom
Portion reserve the area Hou Jiao connection etc.) prefabricated assembled shear wall structure and other forms shear wall structure (such as overlaid plate type is cut
Power wall construction etc.) anti-seismic performance and force-mechanism expand experimental and theoretical study, achieve research achievement more abundant.
However, the research to prefabricated assembled concrete frame construction is then less, construction efficiency is relatively low at present, cost is higher
It is a current key factor for restricting the application of China's prefabricated concrete structure.Superstructure is Horizontal load-bearing structure important in structure
Part, project amount occupy biggish specific gravity in overall structure, therefore improve the property easy for construction of superstructure to raising total
Construction efficiency it is extremely important.
At present in the prefabricated concrete structure in China, the house demolition being most widely used is concrete folding superstructure,
Wherein, Vierendeel girder, secondary beam and floor are the superposed member that pre-erection and rear pouring concrete overlapping layers collectively constitute.Due to reality
Heart laminated floor slab can not be across compared with large span, and the size of prefabricated panel is smaller, and quantity is more, lifts heavy workload, construction efficiency
It is low, also cause structural cost higher.
As shown in Figure 1, superstructure is Horizontal load-bearing component important in structure, project amount is occupied larger in overall structure
Specific gravity, therefore improve superstructure property easy for construction to improve total construction efficiency it is extremely important.The dress in China at present
With the house demolition in formula concrete structure, being most widely used be concrete folding superstructure, but laminated floor slab due to by with
Lower condition limitation, reduces its advantage:
(1) prefabricated board for overlapping solid slab is typically no less than 60mm according to the rules, it is contemplated that preheating embedding line, top in-situ layer
80mm or bigger is often got, overall thickness is also generally all in 140mm or more；
(2) since solid laminated floor slab can not be across compared with large span, the size of prefabricated panel is smaller, and quantity is more, lifting
Heavy workload, construction efficiency are low.Construction efficiency is also to determine the principal element of prefabricated concrete structure cost；
(3) it in order to reduce the arrangement of reinforcement of floor, generally requires to splice laminated floor slab in plate side, forms two-way slab, " dress
With formula concrete structure Building technology specification " in suggest two-way slab piece construction measure it is as shown in Figure 1, it is seen then that the spelling of plate stitch
Needs are connect in board bottom supporting module, increase difficulty of construction；
(4) energy conservation standard in the whole nation 65% is just gradually tried and is promoted in drug in some provinces, to reach this standard, the biography of floor
Hot values of factor K limit value is 1.5W/ (m2K), so that floor must be provided with insulating layer and can just meet the requirements, Normal practice is at present
Floor board bottom be arranged graphite polystyrene board, but its using when be easy to fall off.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of thick cored slab assembling frame structure of overlapping, the structure pole
Construction efficiency is improved greatly, reduces economic cost, improves the building scope of application, structure is made to obtain better shock resistance
Energy.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of thick cored slab assembling frame knot of overlapping
Structure, comprising: overlap thick cassette ceiling, the flat Vierendeel girder of width and precast concrete column, the precast concrete column is indulged muscle connection and passed through
Sleeve grouting is realized, wherein the thick cassette ceiling of the overlapping is by precast concrete bottom plate, weight-reducing material, cast-in-place concrete girt strip
It is formed with top plate, and after prefabricated components on-site hoisting is in place, binds roof steel bar, then pour cast-in-place part concrete, coagulation
Native frame structure central sill uses the form of the flat Vierendeel girder of width, is made using the precast floor slab bottom plate for extending to beam center line respectively by two sides
For the bottom template of beam, and after prefabricated panel lifting in place, binding frame beam steel is simultaneously poured with floor top plate and girt strip jointly
Concrete is built, to form whole common stress with peripheral panels band.
The overlapping thickness cored slab assembling frame structure of the embodiment of the present invention, by that will overlap thick cored slab and use width flat
The prefabricated post of concrete frame structure and sleeve the grouting connection of beam form combines, to greatly improve construction efficiency, reduces
Economic cost, improves the building scope of application, structure is made to obtain better anti-seismic performance, due to hollow plate thickness often compared with
Greatly, the height of wide-flat beam is also corresponding larger, and beam column node core area depth of section is also higher, the shear-carrying capacity and anti-impact of node
Requirement for bearing capacity is cut easily to meet.
In addition, the thick cored slab assembling frame structure of overlapping according to the above embodiment of the present invention can also have it is following attached
The technical characteristic added:
Further, in one embodiment of the invention, the weight-reducing material and the precast concrete bottom plate are in work
Factory is jointly prefabricated, and the framework of steel reinforcement of the cast-in-place concrete girt strip binds in factory or now pricks.
Optionally, in one embodiment of the invention, the thick cassette ceiling of the overlapping is with a thickness of 250~450mm.
Further, in one embodiment of the invention, the cast-in-place concrete girt strip is only along unidirectional arrangement.
Further, in one embodiment of the invention, when the thick cassette ceiling of the overlapping pours, it is mixed only to pour part
Solidifying soil.
Further, in one embodiment of the invention, the flat Vierendeel girder of the width, using partial precast floor soleplate as
The bottom template of beam.
Further, in one embodiment of the invention, the weight-reducing material includes that insulation is steeped with molded polystyrene
Foam plastics and polystyrene foam.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the bidirectional laminated slab monoblock type seam construction schematic diagram according to one embodiment of the invention；
Fig. 2 is the overlapping thickness cored slab circuit theory schematic diagram according to one embodiment of the invention, wherein (a) plan view,
(b) 1-1 section, (c) 2-2 section；
Fig. 3 is the girt strip bar construction schematic diagram according to one embodiment of the invention；
Fig. 4 is the wide-flat beam reinforcing bar schematic diagram according to one embodiment of the invention.
Description of symbols:
It overlaps thick cored slab assembling frame structure -10, overlap thick cassette ceiling -100, wide flat Vierendeel girder -200, it is prefabricated
Concrete column -300, precast concrete bottom plate -400, weight-reducing material -500, concrete girt strip -600, casting top slab -700, reinforcing bar
Factory's production -800 and concrete rib beam bottom reinforcement bars are -900 in precast concrete bottom plate.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The overlapping thickness cored slab assembling frame structure proposed according to embodiments of the present invention progress is described with reference to the accompanying drawings
Description.
Fig. 2 is the overlapping thickness cored slab assembling frame structural plan figure of one embodiment of the invention.
As shown in Fig. 2, the overlapping thickness cored slab assembling frame structure 10 includes: to overlap thick cassette ceiling 100, the flat frame of width
It sets a roof beam in place 200 and precast concrete column 300.
Wherein, the connection that the thick cassette ceiling 100 of overlapping, wide flat Vierendeel girder 200, precast concrete column 300 indulge muscle passes through set
Cylinder grouting is realized, overlaps thick cassette ceiling 100 by precast concrete bottom plate 400, weight-reducing material 500, cast-in-place concrete girt strip 600
It is formed with top plate 700, and after prefabricated components on-site hoisting is in place, binds roof steel bar, then pour cast-in-place part concrete, mixed
Solidifying soil frame structure central sill uses the form of wide flat Vierendeel girder 200, as shown in figure 3, using beam center line is extended to respectively by two sides
Bottom template of the precast floor slab bottom plate as beam, and after prefabricated panel lifting in place, binding frame beam steel and and floor
Top plate and the common casting concrete of girt strip, to form whole common stress with peripheral panels band.
The structure 10 of the embodiment of the present invention will overlap thick cored slab and in the construction process using the coagulation of wide-flat beam form
Native frame structure is combined using the prefabricated post of the traditional sleeve grouting connection of traditional sleeve, greatly improves construction efficiency, drop
Low economic cost, improves the building scope of application, structure is made to obtain better anti-seismic performance.
Optionally, in one embodiment of the invention, thick cored slab is overlapped with a thickness of 250~450mm.
Further, in one embodiment of the invention, when the thick cored slab of overlapping pours, part concrete is only poured.
Specifically, as shown in Fig. 2, the thick cored slab assembling frame structure of overlapping is flat by overlapping thick cassette ceiling 100, width
Vierendeel girder 200 and precast concrete column 300 indulge muscle using traditional sleeve grouting connection in the construction process.Wherein, as schemed
It shown in 3, overlaps thick cored slab and is applied in assembly concrete superstructure, the thick hollow plate thickness of overlapping can use 250~450mm, fold
Thick cassette ceiling 100 is closed by precast concrete bottom plate, weight-reducing material (XPS molded polystyrene foams plastics, EPS polystyrene
Foam etc.), cast-in-place concrete girt strip and top plate composition, girt strip is only along unidirectional arrangement, and weight-reducing material and concrete floor are in factory
Common prefabricated, the framework of steel reinforcement of girt strip can also be bound in factory, as shown in figure 4, tying up after prefabricated components on-site hoisting is in place
Roof steel bar is pricked, then pours cast-in-place part concrete, forms final cassette ceiling.
Compared with solid laminated floor slab, cassette ceiling is had the advantage that
(1) cored slab uses hollow section,, can be with phase since stress is more reasonable although overall thickness is bigger
The bigger span of same material bridges, therefore thick cored slab can cancel secondary beam setting；
(2) it just due to eliminating secondary beam, overlaps thick hollow board prefabrication component and divides that size is big, quantity is few, can effectively improve
Construction efficiency；
(3) since cored slab depth of section is big, by often constructional reinforcement can meet requirement for bearing capacity when curved design, therefore
Unidirectional arrangement can be used, so that girt strip steel bar arrangement is more two-way simple, reduce the plate side piece of two pieces of floors
Stress and detailing requiments greatly improve property easy for construction；
(4) loss of weight thermal insulation material can effectively improve floor heat preservation, heat-insulated and sound insulation value, and technical maturity is easy, section
The duration is saved, and loss of weight thermal insulation material is not fallen off inside floor, and durability is good.
Further, in one embodiment of the invention, weight-reducing material 500 and precast concrete bottom plate 400 are in factory
Common prefabricated, the framework of steel reinforcement of cast-in-place concrete girt strip 600 binds in factory or now pricks.
Further, in one embodiment of the invention, cast-in-place concrete girt strip is only along unidirectional arrangement.
It is understood that cast-in-place concrete girt strip is made of column net, plate, secondary beam and girder.
Further, in one embodiment of the invention, wide flat Vierendeel girder should be using partial precast floor soleplate as beam
Bottom template.
It should be noted that wide flat Vierendeel girder is exactly that the depth-width ratio h/b that cuts section bar of ordinary rectangular generally takes 2.0~3.5；When
When deck-siding is greater than deck-molding, beam is known as wide-flat beam.
As shown in figure 4, saving construction site template, the present invention is in assembled coagulation further to reduce difficulty of construction
Native frame structure central sill uses the form of the flat Vierendeel girder of width.Wide-flat beam extends to the precast floor slab bottom of beam center line using two sides respectively
The bottom template that plate is used as after prefabricated panel lifting is in place, binds wide-flat beam reinforcing bar, concrete and overlap thick cored slab top plate and
The cast-in-place part of girt strip pours jointly, to form whole common stress with peripheral panels band.
Further, in one embodiment of the invention, weight-reducing material may include that insulation is steeped with molded polystyrene
Foam plastics and polystyrene foam.
In conclusion the overlapping thickness cored slab assembling frame structure energy beneficial effect achieved of the embodiment, specifically
It is as follows:
1) as previously mentioned, only needing a small amount of template in this structure construction procedure, easy for construction, prefabricated sample dimensions are big,
Quantity is few, and lifting is high-efficient, effectively improves speed of application, reduces infrastructure cost.Compared to two, common assembling frame structure
Often there is collision phenomenon in bottom reinforcement bars and waist muscle when direction girder and girder and secondary beam are constructed, and seriously affect construction efficiency, wide
Flat beam further simplifies construction, reduces cost.
2) compared with frame-generic structure, sandwich hollow slab span is big, can effectively lift structure head room, and board bottom
It is smooth, it is suitable for the building for having strict demand to layer height, clear height, beauty etc. and needs flexibly to change the building of space layout.This
Outside, cassette ceiling sound insulation value is excellent, further improves the service performance of structure, is also applied for having higher want to sound insulation value
The building asked.
The overlapping thickness cored slab assembling frame structure proposed according to embodiments of the present invention, by using overlapping thickness it is hollow
Floor, bending stiffness is inherently small compared with same thickness solid slab, and has orthotropic one-way sealing rib cassette ceiling
It is the bending stiffness in that is, vertical rib of slab direction lesser one in both direction rigidity on supporting its wide-flat beam influential,
Therefore smaller to the raising effect of the rigidity of wide-flat beam and bearing capacity, make this structure although similar plate-column structure in form, by
Force mode is in fact closer to wide-flat beam frame structure, and " strong column and weak beam " mechanism is easy to accomplish, therefore good seismic performance.Meanwhile
Since hollow plate thickness is often larger, the height of wide-flat beam is also corresponding larger, and beam column node core area depth of section is also higher, section
The shear-carrying capacity and cutting-bearing capacity of point require easily to meet.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (7)
1. a kind of thick cored slab assembling frame structure of overlapping characterized by comprising overlap thick cassette ceiling, the flat frame of width
Beam and precast concrete column, the precast concrete column are indulged muscle connection and are realized by sleeve grouting, wherein the overlapping is thick hollow
Floor is made of precast concrete bottom plate, weight-reducing material, cast-in-place concrete girt strip and top plate, and prefabricated components on-site hoisting just
Behind position, roof steel bar is bound, then pour cast-in-place part concrete, concrete frame structure central sill uses the shape of the flat Vierendeel girder of width
Formula is lifted using bottom template of the precast floor slab bottom plate as beam for extending to beam center line respectively by two sides, and in prefabricated panel
After in place, bind frame beam steel and with floor top plate and the common casting concrete of girt strip, with peripheral panels band formed it is whole altogether
Same stress.
2. the thick cored slab assembling frame structure of overlapping according to claim 1, which is characterized in that the weight-reducing material and
The precast concrete bottom plate is jointly prefabricated in factory, and the framework of steel reinforcement of the cast-in-place concrete girt strip is in factory's binding or now
It pricks.
3. the thick cored slab assembling frame structure of overlapping according to claim 1, which is characterized in that the overlapping is thick hollow
Slab thickness is 250~450mm.
4. the thick cored slab assembling frame structure of overlapping according to claim 1, which is characterized in that the cast-in-place concrete
Girt strip is only along unidirectional arrangement.
5. the thick cored slab assembling frame structure of overlapping according to claim 1, which is characterized in that the overlapping is thick hollow
When concrete floor slab placement, part concrete is only poured.
6. the thick cored slab assembling frame structure of overlapping according to claim 1-5, which is characterized in that the width
Flat Vierendeel girder, using partial precast floor soleplate as the bottom template of beam.
7. the thick cored slab assembling frame structure of overlapping according to claim 1, which is characterized in that the weight-reducing material packet
Include insulation molded polystyrene foams plastics and polystyrene foam.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031450.1A CN109267681A (en) | 2018-09-05 | 2018-09-05 | Overlap thick cored slab assembling frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811031450.1A CN109267681A (en) | 2018-09-05 | 2018-09-05 | Overlap thick cored slab assembling frame structure |
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| Publication Number | Publication Date |
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| CN109267681A true CN109267681A (en) | 2019-01-25 |
Family
ID=65187863
Family Applications (1)
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| CN201811031450.1A Pending CN109267681A (en) | 2018-09-05 | 2018-09-05 | Overlap thick cored slab assembling frame structure |
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| CN101089313A (en) * | 2007-07-02 | 2007-12-19 | 徐焱 | Hollow floor with permanent assemblied mould arranged along beam and its construction method |
| US20080060293A1 (en) * | 2006-09-11 | 2008-03-13 | Hanlon John W | Building system using modular precast concrete components |
| CN103883051A (en) * | 2014-03-13 | 2014-06-25 | 中国十七冶集团有限公司 | Assembling type plate-beam connecting joint and construction method thereof |
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| CN107327065A (en) * | 2017-07-06 | 2017-11-07 | 中国十七冶集团有限公司 | The hollow groined slab floor frame structure seat of large span assembled integral and preparation method |
| CN107700731A (en) * | 2017-09-28 | 2018-02-16 | 贵州皆盈科技开发有限公司 | A kind of precast assemble floor and construction method |
| CN207032605U (en) * | 2017-08-04 | 2018-02-23 | 徐焱 | A kind of wide cut hollow superimposed sheet |
| CN207392557U (en) * | 2017-07-06 | 2018-05-22 | 中国十七冶集团有限公司 | A kind of hollow laminated floor slab of rectangle steel bar girder |
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2018
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB541452A (en) * | 1940-07-19 | 1941-11-27 | Frazzi Ltd | Improvements in and relating to pre-cast hollow units for use in the construction offloors and roofs |
| GB1012278A (en) * | 1963-02-21 | 1965-12-08 | Leslie Herbert Rothwell | Improvements in or relating to building structures |
| US20080060293A1 (en) * | 2006-09-11 | 2008-03-13 | Hanlon John W | Building system using modular precast concrete components |
| CN101089313A (en) * | 2007-07-02 | 2007-12-19 | 徐焱 | Hollow floor with permanent assemblied mould arranged along beam and its construction method |
| CN103883051A (en) * | 2014-03-13 | 2014-06-25 | 中国十七冶集团有限公司 | Assembling type plate-beam connecting joint and construction method thereof |
| CN106088434A (en) * | 2016-08-25 | 2016-11-09 | 中冶建筑研究总院有限公司 | A kind of assembling type steel structure overlapped hollow floor system and construction method thereof |
| CN107327065A (en) * | 2017-07-06 | 2017-11-07 | 中国十七冶集团有限公司 | The hollow groined slab floor frame structure seat of large span assembled integral and preparation method |
| CN207392557U (en) * | 2017-07-06 | 2018-05-22 | 中国十七冶集团有限公司 | A kind of hollow laminated floor slab of rectangle steel bar girder |
| CN207032605U (en) * | 2017-08-04 | 2018-02-23 | 徐焱 | A kind of wide cut hollow superimposed sheet |
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