CN201915534U - Load-bearing composite slab for steel structural residence - Google Patents

Load-bearing composite slab for steel structural residence Download PDF

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Publication number
CN201915534U
CN201915534U CN201020692201XU CN201020692201U CN201915534U CN 201915534 U CN201915534 U CN 201915534U CN 201020692201X U CN201020692201X U CN 201020692201XU CN 201020692201 U CN201020692201 U CN 201020692201U CN 201915534 U CN201915534 U CN 201915534U
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China
Prior art keywords
slab
steel
central layer
load
strength
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Expired - Lifetime
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CN201020692201XU
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Inventor
刘军
李之铎
陈敖宜
赵元祥
周德玲
崔义明
刘用广
蔡仁祉
王礼满
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BUILDING DESIGN INST TIANJIN CITY
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BUILDING DESIGN INST TIANJIN CITY
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Abstract

The utility model discloses a load-bearing composite slab for a steel structural residence, which comprises a prefabricated core slab and a post-cast reinforced concrete slab, wherein longitudinal high-strength spiral rib steel wires and transverse force bearing distribution reinforcing steel bars are arranged at the bottom of the core slab, and the longitudinal high-strength spiral rib steel wires are positioned at the bottom of the core slab and are made by a pre-tensioned method; one end of each longitudinal high-strength spiral rib steel wire is a heading, and the other end of each longitudinal high-strength spiral rib steel wire is tensioned and then is anchored by a clip anchor; the two ends of the transverse force bearing distribution reinforcing steel bars respectively extend out of the two sides of the core slab, and the extending length from the two ends is six to five times smaller than the width of the core slab; pre-embedding steel plates and anchor ribs are arranged at the four corners of the bottom of the core slab, and hanging hooks are respectively arranged on the core slab positioned at the inner sides of the pre-embedded steel plates; and the post-cast reinforced concrete slab is positioned on the core slab, and the anchor ribs and the hanging hooks are anchored into a post-cast layer. The load-bearing composite slab has the characteristics of high stiffness and strength, good ductility and integrity, no template, high construction speed, high fire resistance and the like.

Description

Steel house load-bearing superimposed sheet
Technical field
The utility model relates to a kind of steel building member, relates in particular to a kind of steel house load-bearing superimposed sheet.
Background technology
Steel house is meant with the housing construction of steel as the building bearing beam column.Steel house can satisfy the requirement of buildings and resources sustainable development, helps accelerating the housing industrialization process again, has satisfied the requirement that urbanization process advances fast, meets national industrial policies, is with a wide range of applications.System of steel residential structure is technically than conventional steel tendon concrete structure dwelling house system, more advanced, and structural cost is very nearly the same, consider from comprehensive benefit and sustainable development aspect, steel structure system is also more reasonable, and economic indicator is better than reinforced concrete structure system, system of steel residential structure, operationization in industrialization in the manufacturing, the construction, duration is short, industrialization degree is high, and is pollution-free, no building waste, meets the construction market development trend.Advocating environmental protection and energy-conservation today, steel house must lead the development of following real-estate market.For realizing the intensification and the batch production production of steel house, accelerate the steel house development, at first need solve the structural system problem that influences the steel house development, as floor system, make it reach standardization, seriation, mass production, and then promote the industrialized development of steel house.
The function of housing construction superstructure mainly is to cut apart floor, forms the space, and for resident family provides inhabitations, activity, working platform, it should have enough rigidity and prevent vibration, satisfiedly insulates against sound, the requirement of heat insulation and fire-proof function.The building cover structure system is directly born various dead loads and the live load that is applied to it, and Load Transfer is arrived vertical loadbearing member such as beam, post.Superstructure will have enough horizontal rigidities and globality in self plane, superstructure also will reliably be connected with vertical member, guarantees the stable of vertical member and transmits horizontal force.Therefore, the choose reasonable of superstructure seems most important to safety, the economy of total.
Concrete folding plate is exactly according to instructions for use with the loading characteristic when making changes prefabricated single member into and cast-in-place part is formed with cast-in-place structural, wherein prefabricated single member is made in factory, then it is transported to site assembly, water thereon again and smash cast-in-situ concrete, thereby form superimposed assembling overall structure.The major advantage of this structure is; Prestressing technique and high strength steel are lacked, can be adopted to mechanization degree height, duration, the pre-erection volume is little, in light weight, transporting and hoisting convenient.The weak point of precast concrete superimposed sheet is in the prior art: prefabricated panel was difficult for handling with being connected of girder steel, can not realize firm binding; The junction of adjacent superimposed sheet can not guarantee enough intensity, and its seam crossing is prone to the crack; Globality between prefabricated panel and the last pouring concrete is bad, and construction the time needs problems such as formwork, complex procedures.
The utility model content
At above-mentioned prior art, the utility model provides a kind of steel house load-bearing superimposed sheet, and it is big to the utlity model has rigidity, links firmly, and good integrity need not template, characteristics such as speed of application piece.
In order to solve the problems of the technologies described above, the utility model steel house with the technical scheme that the load-bearing superimposed sheet is achieved is: comprise precast plate and after water armored concrete slab; Described precast plate partly comprises central layer, the bottom from top to down of described central layer is provided with lateral stressed distribution reinforcement and vertical high-strength helix rib steel wire, described lateral stressed distribution reinforcement and vertical high-strength helix rib steel wire are embedded in the concrete cover, the thickness of described concrete cover is 20mm, one end of described vertical high-strength helix rib steel wire is a heading, carries out anchoring with the intermediate plate ground tackle after its other end stretch-draw; Stretch out from the two sides of described central layer respectively at the two ends of described lateral stressed distribution reinforcement, the length that stretch out at its two ends be described central layer width 1/6 to 1/5; Four jiaos of places are equipped with pre-embedded steel slab at described concrete cover, and described pre-embedded steel slab has dowel; Be provided with suspension hook respectively at the place, inboard that is positioned at described pre-embedded steel slab on the described concrete cover; Water after described armored concrete slab be positioned at described central layer above, the bottom of described suspension hook is basic consistent with the height of described high strength helical rib steel wire, the top of described suspension hook exceeds the 30~40mm at described central layer top.
The utility model steel house load-bearing superimposed sheet, wherein, the thickness of described central layer is 80mm, and width is 900~1200mm, and length is 3600mm~6600mm, and the length that stretch out at described lateral stressed distribution reinforcement two ends is 200mm.The length of the described pre-embedded steel slab * wide * thick 100mm * 100mm * 6mm that is not less than, the top of the dowel of pre-embedded steel slab exceed described central layer surface 150mm, and the top of described dowel bends to both sides.Water after described and be equipped with 6 reinforced mesh more than or equal to Φ in the armored concrete slab, bar space is 200mm in the reinforced mesh, and the thickness that waters armored concrete slab after described is 60mm.Strength grade of concrete in the described central layer for more than or equal to C40 and after water strength grade of concrete in the armored concrete slab more than or equal to C25.The cross-sectional geometry of described central layer is trapezoidal, and the angle between two sides and the horizontal plane is 45 ° to 65 °.There is the matsurface more than or equal to 4mm on described central layer surface, and arch camber 10~20mm, the dowel of described suspension hook and described pre-embedded steel slab all anchor into and form a whole floor in the last layer concrete slab.The girder steel welding of described pre-embedded steel slab and steel house.
Compared with prior art, the beneficial effects of the utility model are:
(1) owing to adopt the high-strength bolt rib steel wire in the vertical, with concrete binding intensity height, and near the bottom, get final product arch camber after the stretch-draw, rigidity is big;
(2) Pei Zhi lateral stressed distribution reinforcement stretches out the central layer side and is connected with adjacent another piece central layer side reinforcing bar, the intensity height of its junction, and crack between plate can not take place in the good integrity between plate and the plate;
(3) needn't prop up top template after the precast plate lifting, get final product the concreting surface layer, construction period can be saved a large amount of templates and a top, and can multilayer construct simultaneously, thereby accelerates speed of application, reduction of erection time greatly;
(4) pre-embedded steel slab and the girder steel that is arranged on four jiaos of places of plate welds, and links firmly.
(5) be arranged on 4 suspension hooks in the central layer, and the dowel of 4 pre-embedded steel slabs imbeds in the last layer, make last layer concrete and bottom central layer form a firm integral body.
Description of drawings
Accompanying drawing is the utility model steel house load-bearing superimposed sheet cross-sectional structure schematic diagram.
Among the figure:
The vertical high-strength helix rib steel wire of 10---central layers 11---
12---lateral stressed distribution reinforcement 13---pre-embedded steel slab
14---suspension hook 15---dowel
20---then water armored concrete slab 30---concrete cover
The specific embodiment
Below in conjunction with the specific embodiment the utility model is done to describe in further detail.
As shown in drawings, a kind of steel house of the utility model load-bearing superimposed sheet, comprise precast plate and after water armored concrete slab 20; Described precast plate partly comprises central layer 10, strength grade of concrete in the described central layer 10 is more than or equal to C40, the thickness of described central layer 10 is 80mm, width is 900~1200mm, length is 3600mm~6600mm, in order to increase the area of seam crossing between the two adjacent superimposed sheets, is designed to the cross-sectional geometry of described central layer 10 trapezoidal, angle between two sides and the horizontal plane is 45 ° to 65 °, and accompanying drawing is depicted as 60 °; There are the matsurface more than or equal to 4mm, arch camber 10~20mm in described central layer surface.
The bottom from top to down of described central layer 10 is provided with lateral stressed distribution reinforcement 12 and vertical high-strength helix rib steel wire 11, described lateral stressed distribution reinforcement 12 and vertical high-strength helix rib steel wire 11 are embedded in the concrete cover 30, the thickness of described concrete cover 30 is 20mm, one end of described vertical high-strength helix rib steel wire 11 is a heading, carries out anchoring with the intermediate plate ground tackle after its other end stretch-draw; Stretch out from the two sides of described central layer 10 respectively at the two ends of described lateral stressed distribution reinforcement 12, the length that stretch out at its two ends be described central layer 10 width 1/6 to 1/5, advise that the length that stretch out at described lateral stressed distribution reinforcement 12 two ends is 200mm, be that lateral stressed reinforcing bar throws away side 200mm, to guarantee having enough strength and stiffness after central layer applies prestressing force.
30 4 jiaos of places are equipped with pre-embedded steel slab 13 at described concrete cover, described pre-embedded steel slab has dowel 15, the length of the described pre-embedded steel slab * wide * thick 100mm * 100mm * 6mm that is not less than, the top of the dowel 15 of pre-embedded steel slab exceeds described central layer surface 150mm, the top of described dowel 15 bends to both sides, dowel 15 is 4 Φ 10, and the girder steel with this pre-embedded steel slab and steel house after the lifting welds, with firm binding; Described concrete cover 30 is provided with suspension hook 14 respectively at the place, inboard that is positioned at described pre-embedded steel slab 13, and promptly 2 suspension hooks are respectively established at two ends, are used for lifting, and the side reinforcing bar overlaps mutually between each plate of lifting back.Needn't prop up top template after the lifting, get final product the concreting surface layer, last layer form after water armored concrete slab 20 be positioned at described central layer 10 above, water strength grade of concrete in the armored concrete slab 20 after described more than or equal to C25, the bottom of described suspension hook 5 is basic consistent with the height of described high strength helical rib steel wire 11, and the top of described suspension hook 5 exceeds the 30~40mm at described central layer top; The dowel 15 of described suspension hook and described pre-embedded steel slab all anchors in the last layer, makes last layer and bottom central layer form integral body.The side reinforcing bar mutually behind the overlap joint, repaves and is provided with 6 reinforced mesh more than or equal to Φ between each plate, and bar space is 200mm in the reinforced mesh, after to make 60mm thick, strength grade of concrete forms the whole unit superstructure more than or equal to the last layer concrete of C25.
Through in Tianjin member engineering company test, the utility model steel house reaches 1.65 with load-bearing superimposed sheet crack factor, and promptly its bearing capacity is 1.65 times of service load, is higher than 1.25 times of code requirement.Amount of deflection is 1/500 only, the crack do not occur, and ultimate bearing capacity reaches 1.5T/m 2Its rigidity, intensity and crack resistance far satisfy code requirement, can be applied to steel house.
Although in conjunction with figure the utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.

Claims (8)

1. steel house load-bearing superimposed sheet, comprise precast plate and after water armored concrete slab; It is characterized in that: described precast plate partly comprises central layer (10), the bottom from top to down of described central layer (10) is provided with lateral stressed distribution reinforcement (12) and vertical high-strength helix rib steel wire (11), described lateral stressed distribution reinforcement (12) and vertical high-strength helix rib steel wire (11) are embedded in the concrete cover (30), the thickness of described concrete cover (30) is 20mm, one end of described vertical high-strength helix rib steel wire (11) is a heading, carries out anchoring with the intermediate plate ground tackle after its other end stretch-draw; Stretch out from the two sides of described central layer (10) respectively at the two ends of described lateral stressed distribution reinforcement (12), the length that stretch out at its two ends be described central layer (10) width 1/6 to 1/5; Si Jiaochu is equipped with pre-embedded steel slab (13) at described concrete cover (30), and described pre-embedded steel slab has dowel (15); Described concrete cover (30) is gone up at the place, inboard that is positioned at described pre-embedded steel slab (13) and is provided with suspension hook (14) respectively; Water after described armored concrete slab (20) be positioned at described central layer (10) above, the bottom of described suspension hook (5) is basic consistent with the height of described high strength helical rib steel wire (11), the top of described suspension hook (5) exceeds the 30~40mm at described central layer top.
2. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that the thickness of described central layer (10) is 80mm, width is 900~1200mm, length is 3600mm~6600mm, and the length that stretch out at described lateral stressed distribution reinforcement (12) two ends is 200mm.
3. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that, the length of described pre-embedded steel slab (13) * wide * thick 100mm * 100mm * 6mm that is not less than, the top of the dowel (15) of pre-embedded steel slab (13) exceeds described central layer surface 150mm, and the top of described dowel (15) bends to both sides.
4. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that, water after described and be equipped with more than or equal to Φ 6 reinforced mesh in the armored concrete slab (20), bar space is 200mm in the reinforced mesh, and the thickness that waters armored concrete slab (20) after described is 60mm.
5. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that, the strength grade of concrete in the described central layer (10) for more than or equal to C40 and after water strength grade of concrete in the armored concrete slab (20) more than or equal to C25.
6. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that the cross-sectional geometry of described central layer (10) is trapezoidal, the angle between two sides and the horizontal plane is 45 ° to 65 °.
7. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that, there is the matsurface more than or equal to 4mm on described central layer surface, and arch camber 10~20mm, the dowel of described suspension hook and described pre-embedded steel slab (15) all anchor into and form a whole floor in the last layer concrete slab.
8. according to the described steel house of claim 1 load-bearing superimposed sheet, it is characterized in that described pre-embedded steel slab (13) welds with the girder steel of steel house.
CN201020692201XU 2010-12-30 2010-12-30 Load-bearing composite slab for steel structural residence Expired - Lifetime CN201915534U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926517A (en) * 2012-03-19 2013-02-13 南京旭建新型建材股份有限公司 Composite decorative plate with built-in buried piece
CN103216036A (en) * 2013-04-03 2013-07-24 哈尔滨工程大学 Bent-loading light-weight reinforced concrete beam structure
CN104631675A (en) * 2015-02-16 2015-05-20 济南轨道交通集团有限公司 Double-face prefabricated superimposed plate
CN105155689A (en) * 2015-09-17 2015-12-16 中民筑友有限公司 Connection node of precast slabs and construction method for laminated precast slabs
CN105275096A (en) * 2015-09-17 2016-01-27 中民筑友有限公司 Prefabricated pieced two-way slab construction method
CN105525714A (en) * 2016-02-02 2016-04-27 济南汇富住宅工业有限公司 Prefabricated reinforced concrete laminated slab
CN106149977A (en) * 2016-07-12 2016-11-23 东南大学 A kind of high ductility prefabricated assembled overlapping coupling beam

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102926517A (en) * 2012-03-19 2013-02-13 南京旭建新型建材股份有限公司 Composite decorative plate with built-in buried piece
CN103216036A (en) * 2013-04-03 2013-07-24 哈尔滨工程大学 Bent-loading light-weight reinforced concrete beam structure
CN103216036B (en) * 2013-04-03 2015-05-20 哈尔滨工程大学 Bent-loading light-weight reinforced concrete beam structure
CN104631675A (en) * 2015-02-16 2015-05-20 济南轨道交通集团有限公司 Double-face prefabricated superimposed plate
CN104631675B (en) * 2015-02-16 2017-08-25 济南轨道交通集团有限公司 A kind of two-sided prefabricated superimposed sheet
CN105155689A (en) * 2015-09-17 2015-12-16 中民筑友有限公司 Connection node of precast slabs and construction method for laminated precast slabs
CN105275096A (en) * 2015-09-17 2016-01-27 中民筑友有限公司 Prefabricated pieced two-way slab construction method
CN105525714A (en) * 2016-02-02 2016-04-27 济南汇富住宅工业有限公司 Prefabricated reinforced concrete laminated slab
CN106149977A (en) * 2016-07-12 2016-11-23 东南大学 A kind of high ductility prefabricated assembled overlapping coupling beam

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