CN109138249A - Circular flat large span honeycomb type concrete empty stomach sandwich plate floor and construction method - Google Patents
Circular flat large span honeycomb type concrete empty stomach sandwich plate floor and construction method Download PDFInfo
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- CN109138249A CN109138249A CN201811051865.5A CN201811051865A CN109138249A CN 109138249 A CN109138249 A CN 109138249A CN 201811051865 A CN201811051865 A CN 201811051865A CN 109138249 A CN109138249 A CN 109138249A
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- regular hexagonal
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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
- E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
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Abstract
The invention belongs to technical field of buildings, a kind of circular flat large span honeycomb type concrete empty stomach sandwich plate floor and construction method are disclosed, including the layer that winds up, lower edge layer, lower edge layer is joined by lower-cord beam into multiple regular hexagonal cells, the layer that winds up includes by the multiple regular hexagonal cells for beam handover of winding up, and further includes folding to be located on regular hexagonal cell and cast integral regular hexagon upper string board therewith；Regular hexagonal cell set-up mode are as follows: set a center regular hexagonal cell at center with beam/lower-cord beam is winded up, center regular hexagonal cell periphery is equipped with multiple regular hexagonal cells, emanant rule in emanant between superstructure circular edge are as follows: increases by six around the every circle regular hexagonal cell that increases of center regular hexagonal cell；Support is crossed to form with circular edge close to layer/lower edge layer edge regular hexagonal cell side is winded up；Wind up layer and lower edge interlayer passes through shearing key connection.This superstructure entirety reasonable stress, internal force are evenly distributed, and project cost is at low cost.
Description
Technical field
The present invention relates to technical field of buildings, and in particular, to a kind of circular flat large span honeycomb type concrete empty stomach
Sandwich plate floor and construction method.
Background technique
Occurring " honeycomb type open-spandrel sandwich board " technology, its feature in recent years is empty stomach grid by six equilateral triangles
The regular hexagon of grid composition, shape is similar to honeycomb, its side length, that is, equilateral triangle side length b, a height of equilateral triangle it is high 2
Times, i.e. 2h, as shown in Figure of description 1, which are mainly applied to the superstructure or roof system of rectangle and class square planar, periphery branch
Seat, span direction are made of b and 2b, and longitudinal direction support spacing is made of 2h.Superstructure transmits load by conventional orthogonal
Both direction power transmission is changed into 120 ° of angle of three-dimensional transmitting floow load, makes superstructure stress more evenly.
But with the development of multilayer large-span public building, the public building of multilayer large-span circular flat also occurs,
If its superstructure also uses above-mentioned traditional structure, then it will also result in project cost substantial increase while discontinuity.
Summary of the invention
Present invention solves the technical problem that be to overcome the deficiencies of existing technologies, a kind of reasonable stress, internal force distribution are provided
Uniformly, the circular flat large span honeycomb type concrete empty stomach sandwich plate floor of project cost is saved compared to traditional structure forms.
Present invention simultaneously provides a kind of constructions of circular flat large span honeycomb type concrete empty stomach sandwich plate floor
Method.
The purpose of the present invention is achieved through the following technical solutions:
A kind of circular flat large span honeycomb type concrete empty stomach sandwich plate floor, including the rounded layer that winds up in edge, lower edge
Layer, lower edge layer by lower-cord beam handover constitutes multiple regular hexagonal cells, the layer that winds up include by wind up beam handover constitute it is multiple just
Hexagonal mesh further includes folding to be located on regular hexagonal cell and cast integral regular hexagon with regular hexagonal cell to wind up
Plate.
Wind up the regular hexagonal cell set-up mode of layer and lower edge layer are as follows: using winding up beam/lower-cord beam in the layer/lower edge that winds up
A center regular hexagonal cell, center regular hexagonal cell periphery to the layer that winds up/lower edge layer circular edge is provided in layer center
Between be also disposed with multiple regular hexagonal cells, regular hexagonal cell and center regular hexagonal cell size phase in emanant rule
Together, the emanant rule are as follows: it is every to increase by a circle regular hexagonal cell in addition to the regular hexagonal cell of center, then increasing by six just
Hexagonal mesh.
Close to winding up the Grid Edge of layer/lower edge layer edge regular hexagonal cell and circular edge is crossed to form support.
It winds up and forms honeycomb-shaped structure by shearing key connection between layer and lower edge layer.
Further, the opposite side distance of regular hexagonal cell is 2a, crosses center regular hexagonal cell center for center positive six
The opposite side distance of the regular hexagonal cell of side shape grid two sides draws a straight line, the regular hexagonal cell number that the straight line passes through
It is set as D=m × 2a+2a/3 for m, the diameter D of superstructure, m is odd number.
Further, support is uniformly arranged on circular edge, and circle welding arc control is in 3~4m between support.
Still further, the height H of superstructure is set as H=(1/28~1/25) D.
Also further, wind up plate thickness h1=(2/30~2/25) a.
Further, wind up beam and lower edge beam width it is equal, the layer that winds up is equal with the height of lower edge layer.
Further, the width of beam of winding up is greater than the height of layer of winding up.
Still further, shear connector is block-like trident shear connector.
Also further, the height h of trident shear connector0It is set as with overall width Bh 0/B≤1.5。
A kind of construction method of the circular flat large span honeycomb type concrete empty stomach sandwich plate floor, including following step
It is rapid:
S1. lower-cord beam is connected into several regular hexagonal cells, close to the Grid Edge of the regular hexagonal cell at lower edge layer edge
Support, regular hexagonal cell set-up mode are crossed to form with the circular edge of lower edge layer are as follows: using lower-cord beam at lower edge layer center
A center regular hexagonal cell is provided, is also in emanant between the circular edge on center regular hexagonal cell periphery to lower edge layer
Rule is disposed with multiple regular hexagonal cells, and regular hexagonal cell is identical as center regular hexagonal cell size, described emanant
Rule are as follows: it is every to increase by a circle regular hexagonal cell in addition to the regular hexagonal cell of center, then increase by six regular hexagonal cells；
S2., shear connector is set at the three-dimensional joint of regular hexagonal cell；
S3. it is arranged on shear connector and several formed are connected by the beam that winds up winds up the regular hexagonal cell of layer, close to the layer that winds up
The Grid Edge of the regular hexagonal cell at edge and the circular edge for the layer that winds up are crossed to form support, the regular hexagonal cell for the layer that winds up
It is identical as the regular hexagonal cell set-up mode of lower edge layer；
S4. muti-piece regular hexagon upper string board is shelved on the regular hexagonal cell for the layer that winds up, by upper string board and regular hexagonal cell
The beam that winds up cast integrally.
Compared with prior art, the invention has the following advantages:
1) it winds up layer and offline layer is all made of emanant rule and arranges multiple regular hexagonal cells, and finally formed in conjunction with shear connector
The superstructure of one honeycomb-shaped structure, it can be ensured that the overall structure stiffness and strength of superstructure；
2) in the regular hexagonal cell of emanant rule arrangement, compact-sized between each other, restriction is strong, really adapts to superstructure
Large span demand；
3) support is evenly arranged on superstructure edge, i.e., circular arc grows equal, superstructure entirety reasonable stress between support, and internal force distribution is equal
It is even, further enhance the overall structural strength of honeycomb-shaped structure superstructure
4) this superstructure porosity is big, and from heavy and light, while grid is handsome in appearance generous, compares traditional structure forms, can save work
Various building effects are played on the basis of journey cost.
Detailed description of the invention
Fig. 1 is the multilayer large-span rectangle plane concrete comb shape hollow sandwich panel ceiling for storied building of the prior art；
Fig. 2 is that the honeycombed empty stomach grid of the circular flat large span honeycomb type concrete empty stomach sandwich plate floor of embodiment 1 is flat
Face layout drawing；
Fig. 3 is partial enlarged view of the honeycombed empty stomach grid at six bisectors shown in Fig. 2；
Fig. 4 is the geometric dimension relationship schematic diagram of single regular hexagonal cell in embodiment 1；
Fig. 5 is the part section structural map of the circular flat large span honeycomb type concrete empty stomach sandwich plate floor of embodiment 1；
Fig. 6 is the shear connector of embodiment 1 and the attachment structure schematic diagram of lower edge layer.
Specific embodiment
The present invention is further illustrated With reference to embodiment, wherein attached drawing only for illustration,
What is indicated is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
There is provided a kind of circular flat large span honeycomb type concrete empty stomach sandwich plate floor comprising the rounded layer that winds up in edge
With lower edge layer, lower edge layer constitutes multiple regular hexagonal cells by the handover of lower-cord beam 11, and the layer that winds up includes joining structure by the beam 21 that winds up
At multiple regular hexagonal cells, further include it is folded be located on regular hexagonal cell and with regular hexagonal cell cast it is integral just
Hexagon upper string board 22.
Wherein wind up beam 21 and lower-cord beam 11 be laced beam, each lower-cord beam junction be equipped with trident shear connector connect with
Enhance the structural strength of superstructure.
Specifically, wind up the regular hexagonal cell set-up mode of layer and lower edge layer are as follows: using winding up, beam/lower-cord beam is winding up
A center regular hexagonal cell, center regular hexagonal cell periphery to the layer that winds up/lower edge layer circle is provided in layer/lower edge layer center
Multiple regular hexagonal cells are disposed in emanant rule between shape edge, regular hexagonal cell and center regular hexagonal cell are big
It is small identical, the emanant rule are as follows: it is every to increase by a circle regular hexagonal cell in addition to the regular hexagonal cell of center, then increase by six
Regular hexagonal cell, the layer that the winds up/lower edge layer honeycombed empty stomach grid plan layout drawing formed by the emanant rule arrangement
As shown in Fig. 2, wherein close to winding up the Grid Edge of layer/lower edge layer edge regular hexagonal cell and circular edge is crossed to form branch
Seat 3 winds up and forms honeycomb-shaped structure by the connection of shear connector 4 between layer and lower edge layer.
Now the emanant rule is made further to explain: in addition to the regular hexagonal cell of one, center, around positive six side in the center
Shape grid is every to increase by a circle regular hexagonal cell, is increased by 6 regular hexagonal cells, i.e. the of center regular hexagonal cell periphery
One circle is 6 regular hexagonal cells, and the second circle is 12 regular hexagonal cells, and third circle is 18 regular hexagons, and so on.
To make the space of superstructure be fully used, while need to ensure again good between honeycombed empty stomach grid and superstructure edge
Agree with well, the present embodiment has made a balanced design between the size of regular hexagonal cell and the diameter of superstructure, specifically
Ground, as shown in Figure 2, Figure 3 and Figure 4, the opposite side distance of regular hexagonal cell is 2a, crosses center regular hexagonal cell center for center
The opposite side distance of the regular hexagonal cell of regular hexagonal cell two sides draws a straight line, the regular hexagon net which is passed through
Lattice number is m, then the diameter D of superstructure is set as D=m × 2a+2a/3, and m is odd number, such as 7,9,11,13.
For the overall structural strength for further enhancing honeycomb-shaped structure superstructure, support 3 is uniformly arranged on circular edge, branch
The homogenization setting of seat can make superstructure entirety reasonable stress, and internal force is evenly distributed.
With specific reference to Fig. 2 it is found that the Grid Edge of all regular hexagonal cells at the layer/lower edge layer circular edge that wind up
It is directly connected at support 3, this is connected honeycombed empty stomach grid well with superstructure edge, at this time the honeycombed
Empty stomach grid can just be had shown that in Fig. 2 by six equal parts, six bisectors.
Now the distance support is calculated on the basis of honeycombed empty stomach grid is by six equal parts, according to above
Superstructure diameter D=m × 2a+2a/3, then the circular perimeter S of superstructure=πD, a length of S/6 of superstructure circular arc of six equal parts=πD/6, any two
Support number between six bisector of root is n (n and m have certain rule relationships), then a length of S/6n of the circular arc between support=π
D/6n, certainly, the spacing between support should not be too big, need to be according to superstructure diameter suitable control, it is preferable that circular arc is long between support
Control is in 3~4m.
As shown in figure 5, being with smaller shear-deformable " battenboard ", the height of the superstructure of the present embodiment to meet superstructure
H is set as H=(1/28~1/25) D, and wind up plate thickness h1=(2/30~2/25) a, the beam 21 that winds up is equal with 11 width of lower-cord beam, on
String layer is equal with the height of lower edge layer (see the h in Fig. 52), the width for the beam that winds up is greater than the height for the layer that winds up, and sets in these ratios
It sets lower superstructure overall structure harmony preferably and overall structural strength can also be guaranteed.
As shown in fig. 6, the shear connector 4 connected between layer and lower edge layer that winds up is block-like trident shear connector, superstructure winds up
Pressure (N1、N2、N3) horizontal shear that generates with the pulling force of lower edge undertakes by shear connector section.
To ensure that superstructure has biggish shear stiffness, the height h of trident shear connector0It is set as with overall width Bh 0/B≤
1.5, wherein B=b+2b1(b is the width of beam of winding up, and sees the b in b and Fig. 5 in Fig. 41), the height h of trident shear connector0As
The empty stomach height of this circular flat large span honeycomb type concrete empty stomach sandwich plate floor.
Embodiment 2
A kind of construction method of circular flat large span honeycomb type concrete empty stomach sandwich plate floor, including following step are provided
It is rapid:
S1. lower-cord beam 11 is connected into several regular hexagonal cells, close to the grid of the regular hexagonal cell at lower edge layer edge
The circular edge of side and lower edge layer is crossed to form support 3, regular hexagonal cell set-up mode are as follows: using lower-cord beam in lower edge layer
A center regular hexagonal cell is provided in the heart, is also in radiation between the circular edge on center regular hexagonal cell periphery to lower edge layer
Formula rule is disposed with multiple regular hexagonal cells, and regular hexagonal cell is identical as center regular hexagonal cell size, the radiation
Formula rule are as follows: it is every to increase by a circle regular hexagonal cell in addition to the regular hexagonal cell of center, then increase by six regular hexagonal cells；
S2., shear connector 4 is set at the three-dimensional joint of regular hexagonal cell；
S3., the regular hexagonal cell that several layers that wind up formed are connected by the beam 21 that winds up is set on shear connector 4, it is close to wind up
The circular edge of the Grid Edge and the layer that winds up of the regular hexagonal cell at layer edge is crossed to form support, the regular hexagon net for the layer that winds up
Lattice are identical as the regular hexagonal cell set-up mode of lower edge layer；
S4. muti-piece regular hexagon upper string board 22 is shelved on the regular hexagonal cell for the layer that winds up, by upper string board and regular hexagon net
The beam 21 that winds up of lattice is cast integrally.
Obviously, above-described embodiment is only intended to clearly illustrate technical solution of the present invention example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in right of the present invention and want
Within the protection scope asked.
Claims (10)
1. a kind of circular flat large span honeycomb type concrete empty stomach sandwich plate floor, which is characterized in that rounded including edge
The layer that winds up, lower edge layer, lower edge layer by lower-cord beam handover constitutes multiple regular hexagonal cells,
The layer that winds up includes joining the multiple regular hexagonal cells constituted by the beam that winds up, and further includes folded be located on regular hexagonal cell simultaneously
Integral regular hexagon upper string board is cast with regular hexagonal cell；
Wind up the regular hexagonal cell set-up mode of layer and lower edge layer are as follows: using winding up beam/lower-cord beam in the layer that winds up/lower edge layer
A center regular hexagonal cell is provided in the heart, and center regular hexagonal cell periphery is between the layer that winds up/lower edge layer circular edge
Multiple regular hexagonal cells also are disposed in emanant rule, regular hexagonal cell is identical as center regular hexagonal cell size,
The emanant rule are as follows: it is every to increase by a circle regular hexagonal cell in addition to the regular hexagonal cell of center, then increase by six positive six sides
Shape grid；
Close to winding up the Grid Edge of layer/lower edge layer edge regular hexagonal cell and circular edge is crossed to form support；
It winds up and forms honeycomb-shaped structure by shearing key connection between layer and lower edge layer.
2. circular flat large span honeycomb type concrete empty stomach sandwich plate floor according to claim 1, which is characterized in that
The opposite side distance of regular hexagonal cell is 2a, crosses center regular hexagonal cell center for positive the six of center regular hexagonal cell two sides
The opposite side distance of side shape grid draws a straight line, and the regular hexagonal cell number that the straight line passes through is m, and the diameter D of superstructure is set
It is set to D=m × 2a+2a/3, m is odd number.
3. circular flat large span honeycomb type concrete empty stomach sandwich plate floor according to claim 2, which is characterized in that
Support is uniformly arranged on circular edge, and circle welding arc control is in 3~4m between support.
4. circular flat large span honeycomb type concrete empty stomach sandwich plate floor according to claim 2 or 3, feature exist
In the height H of superstructure is set as H=(1/28~1/25) D.
5. circular flat large span honeycomb type concrete empty stomach sandwich plate floor according to claim 4, which is characterized in that
Wind up plate thickness h1=(2/30~2/25) a.
6. circular flat large span honeycomb type concrete empty stomach sandwich plate floor, feature exist according to claim 1 or 5
In, wind up beam and lower edge beam width it is equal, the layer that winds up is equal with the height of lower edge layer.
7. circular flat large span honeycomb type concrete empty stomach sandwich plate floor according to claim 6, which is characterized in that
The width of beam of winding up is greater than the height of layer of winding up.
8. circular flat large span honeycomb type concrete empty stomach sandwich plate floor described according to claim 1 or 5 or 7, special
Sign is that shear connector is block-like trident shear connector.
9. circular flat large span honeycomb type concrete empty stomach sandwich plate floor according to claim 8, which is characterized in that
The height h of trident shear connector0It is set as with overall width Bh 0/B≤1.5。
10. one kind circular flat large span honeycomb type concrete empty stomach sandwich plate floor as described in claim 1~9 any one
Construction method, which comprises the following steps:
S1. lower-cord beam is connected into several regular hexagonal cells, close to the Grid Edge of the regular hexagonal cell at lower edge layer edge
Support, regular hexagonal cell set-up mode are crossed to form with the circular edge of lower edge layer are as follows: using lower-cord beam at lower edge layer center
A center regular hexagonal cell is provided, is also in emanant between the circular edge on center regular hexagonal cell periphery to lower edge layer
Rule is disposed with multiple regular hexagonal cells, and regular hexagonal cell is identical as center regular hexagonal cell size, described emanant
Rule are as follows: it is every to increase by a circle regular hexagonal cell in addition to the regular hexagonal cell of center, then increase by six regular hexagonal cells；
S2., shear connector is set at the three-dimensional joint of regular hexagonal cell；
S3. it is arranged on shear connector and several formed are connected by the beam that winds up winds up the regular hexagonal cell of layer, close to the layer that winds up
The Grid Edge of the regular hexagonal cell at edge and the circular edge for the layer that winds up are crossed to form support, the regular hexagonal cell for the layer that winds up
It is identical as the regular hexagonal cell set-up mode of lower edge layer；
S4. muti-piece regular hexagon upper string board is shelved on the regular hexagonal cell for the layer that winds up, by upper string board and regular hexagonal cell
The beam that winds up cast integrally.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111636556A (en) * | 2020-05-21 | 2020-09-08 | 湖南工业大学 | Narrow and long plane concrete honeycomb type space grid box type structure and manufacturing method |
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