CN1959023A - Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell - Google Patents
Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell Download PDFInfo
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- CN1959023A CN1959023A CN 200610200930 CN200610200930A CN1959023A CN 1959023 A CN1959023 A CN 1959023A CN 200610200930 CN200610200930 CN 200610200930 CN 200610200930 A CN200610200930 A CN 200610200930A CN 1959023 A CN1959023 A CN 1959023A
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Abstract
The present invention discloses a kind of large span square-shaped plane reinforced concrete open-web sandwich doubly-curved flat mesh-shell roof structure. It is composed of shell plate and edge member. Said shell plate is made up by using square-shaped plane reinforced concrete open-web sandwich plate through a bending process according to circular curve bidirectional equal-curvalure. As compared with existent technology the span of the reinforced concrete thin shell structure can be enlarged to 36 m-60 m and its self-weight can be reduced by 30%-50%.
Description
Technical field:
The present invention relates to a kind of flat grid shell roof structure, it is a kind of large span (hollow sandwich double arch flat web roof structure of square planar steel bar concrete orthogonal spatial iso-curvature of 36m≤L≤60m).
Background technology:
The cast-in-situ reinforced concrete thin shell structures begins to be applied to flat grid shell roof structure in 50～sixties of 20th century, but its general span is between 15m～30m, when architectural plane is of a size of square, when span increases, shell can't satisfy the intensity and the stability requirement of structure, needs to adopt quadrature steel concrete with rib double curved shell structure.This structure is made up of thin plate and rectangular solid beam, can satisfy the intensity and the stability requirement of structure, but dead load lays particular stress on, and is difficult to adapt to the requirement of the large span flat grid shell roof structure of span between 36m～60m, and the concrete of this structure and amount of reinforcement are bigger.
Summary of the invention:
The objective of the invention is to: provide that a kind of dead load is light, concrete and amount of reinforcement be few, is particularly useful for the large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structure of span between 36m～60m, to solve the problem that prior art exists.
The present invention is achieved in that it is made of coverboard (1) and edge member (2), and coverboard (1) is formed by the two-way iso-curvature bending of circular curve by the steel bar concrete open-spandrel sandwich board (3) of square-shaped planar.
Described steel bar concrete open-spandrel sandwich board (3) is made of last rib grid (4) and following rib grid (5), last rib grid (4) is spliced into latticed by at least 4 precast plates with ribbing (6) quadrature, following rib grid (5) becomes latticed by the following rib single beam (7) of in-situ casting with following rib linear beam (8) quadrature, and last rib grid (4) is connected with the shear connector (9) of following rib grid (5) by in-situ casting.
Precast plate with ribbing (6) is shelved on the cap at shear connector (9) top, and is fixed on the shear connector (9) by the steel bar concrete (10) of second pouring.
The bottom of shear connector (9) is positioned on the crosspoint of following rib single beam (7) and following rib linear beam (8).
Precast plate with ribbing (6) is square, and the size of every precast plate with ribbing (6) is consistent.
Width between the precast plate with ribbing (6) is consistent with the width of following rib grid (5).
Edge member (2) can be general reinforced concrete truss, Vierendeel truss, or lower edge prestressing force Vierendeel truss or general truss, also can be the steel bar concrete curved beam.
Compared with prior art, the present invention makes the span of steel bar concrete thin shell structures be extended to 36m～60m, and satisfies intensity and resistance to overturning requirement; The steel concrete with rib double arch flat web of its comparable prior art of conducting oneself with dignity is light by 30%～50%; And the following rib grid and the shear connector in-situ casting of steel bar concrete open-spandrel sandwich board of the present invention, last rib grid hangs bed die and wire-ties after being held on shear connector quadrangle one-tenth side form by square prefabricated band floor, and the cast-in-place formation of secondary is whole; In-situ casting and factory are prefabricated to carry out synchronously, and not only the steel concrete with rib double arch flat web of comparable prior art is saved template, reduces concrete and amount of reinforcement, and has improved construction speed; Its durability, antirust, fireproof performance also are better than the steel screen structure.
Description of drawings:
Fig. 1 is the plane structure schematic diagram of steel bar concrete open-spandrel sandwich board of the present invention;
Fig. 2 is the A-A cross-sectional view of steel bar concrete open-spandrel sandwich board of the present invention;
Fig. 3 is the perspective view of the large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof system of invention;
Fig. 4 is the sectional view of large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof system of the present invention along direction of a curve.
The specific embodiment:
Embodiments of the invention: as shown in Figure 3, Figure 4, it is made of coverboard 1 and edge member 2, edge member 2 is the practice routinely, can adopt general reinforced concrete truss, Vierendeel truss, lower edge prestressing force Vierendeel truss or general truss, can form the four-point supporting form, also can all edge columns, the edge is the steel bar concrete curved beam, forms the periphery supporting form.Coverboard 1 is formed by the circular curve compound bending by the steel bar concrete open-spandrel sandwich board 3 of square-shaped planar, and its surrounding form is arc.The plane structure of steel bar concrete open-spandrel sandwich board 3 as shown in Figure 1, its cross-section structure as shown in Figure 2, it is made of last rib grid 4 and following rib grid 5, rib grid 4 is spliced into latticed for 6 liang by 4 precast plates with ribbing on each to quadrature, make and construction for convenient, precast plate 6 with ribbing is square, and the size of every precast plate 6 with ribbing is consistent; The size of precast plate 6 with ribbing and number needs back are as calculated determined, when calculating, can wait the chord length behind the component curve to divide some grids by curved surface is two-way whole roof system, the grid sum that obtains be exactly the quantity of required precast plate with ribbing 6, and the size of grid is exactly the size of precast plate 6 with ribbing; Following rib grid 5 can make circular curve, also can make the chord length (broken line formation curve of approximation) of sectional curve, its following rib single beam 7 by in-situ casting becomes latticed with following rib linear beam 8 quadratures, four angles in crosspoint are 90 degree, and following rib grid 5 also is 90 degree with the crossing angle of edge member 2, i.e. " orthogonal spatial ".Last rib grid 4 is connected with the shear connector 9 of following rib grid 5 by in-situ casting, and cap is arranged at the top of shear connector 9, in order to laying precast plate 6 usefulness with ribbing; The bottom of shear connector 9 is positioned on the crosspoint of following rib single beam 7 and following rib linear beam 8; Precast plate 6 with ribbing is shelved on the cap at shear connector 9 tops, and the width of reserving between the precast plate 6 with ribbing is consistent with the width of following rib grid 5, and height is the rib height of precast plate 6 with ribbing, and forms top orthogonal spatial abortive haul lattice.The rib of precast plate 6 with ribbing promptly is a side template of going up rib grid 4, at shear connector 9 tops four jiaos shelve square precast plate with ribbing 6 after, form latticed dead slot, after hanging bed die and wire-tiing, and note reserved steel bar in the shear connector 9 is bent in the dead slot, by the steel bar concrete 10 of second pouring, precast plate 6 with ribbing can be fixed on the shear connector 9.
Claims (7)
1. large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structure, it is made of coverboard (1) and edge member (2), and it is characterized in that: coverboard (1) is formed by the two-way iso-curvature bending of circular curve by the steel bar concrete open-spandrel sandwich board (3) of square-shaped planar.
2. large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell building cover structure according to claim 1, it is characterized in that: steel bar concrete open-spandrel sandwich board (3) is made of last rib grid (4) and following rib grid (5), last rib grid (4) is spliced into latticed by at least 4 precast plates with ribbing (6) quadrature, following rib grid (5) becomes latticed by the following rib single beam (7) of in-situ casting with following rib linear beam (8) quadrature, and last rib grid (4) is connected with the shear connector (9) of following rib grid (5) by in-situ casting.
3. large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structure according to claim 2, it is characterized in that: precast plate with ribbing (6) is shelved on the cap at shear connector (9) top, and is fixed on the shear connector (9) by the steel bar concrete (10) of second pouring.
4. large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structure according to claim 2 is characterized in that: the bottom of shear connector (9) is positioned on the crosspoint of following rib single beam (7) and following rib linear beam (8).
5. large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structure according to claim 2 is characterized in that: precast plate with ribbing (6) is for square, and the size of every precast plate with ribbing (6) is consistent.
6. according to claim 2 or 5 described large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structures, it is characterized in that: the width between the precast plate with ribbing (6) is consistent with the width of following rib grid (5).
7. large span, quadrate prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell roof structure according to claim 1 is characterized in that: edge member (2) is general reinforced concrete truss, Vierendeel truss, lower edge prestressing force Vierendeel truss, general truss or steel bar concrete curved beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610200930 CN1959023A (en) | 2006-09-28 | 2006-09-28 | Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610200930 CN1959023A (en) | 2006-09-28 | 2006-09-28 | Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell |
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| Publication Number | Publication Date |
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| CN1959023A true CN1959023A (en) | 2007-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610200930 Pending CN1959023A (en) | 2006-09-28 | 2006-09-28 | Large span, quadrate structure of house cover prepared from plane reinforcing steel bar concrete in open web interlayer and double arch flat web shell |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182270A (en) * | 2011-04-01 | 2011-09-14 | 江苏沪宁钢机股份有限公司 | Square connection gridding single-layer arch-shaped net shell roof structure and manufacturing method thereof |
| CN102888935A (en) * | 2011-07-18 | 2013-01-23 | 湖南邱则有专利战略策划有限公司 | Shearing force prefabricated component for assembled-type hollow grid plate floor system structure |
| CN102888936A (en) * | 2011-07-18 | 2013-01-23 | 湖南邱则有专利战略策划有限公司 | Shearing force prefabricated component for assembled-type hollow grid plate floor system structure |
| CN107916739A (en) * | 2017-12-22 | 2018-04-17 | 贵州大学 | Large-span concrete bucket shape grid shell roof structure and preparation method thereof |
| CN108018978A (en) * | 2017-12-22 | 2018-05-11 | 贵州大学 | Intend flat grid shell roof structure and preparation method thereof in four slope of large-span concrete |
-
2006
- 2006-09-28 CN CN 200610200930 patent/CN1959023A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182270A (en) * | 2011-04-01 | 2011-09-14 | 江苏沪宁钢机股份有限公司 | Square connection gridding single-layer arch-shaped net shell roof structure and manufacturing method thereof |
| CN102182270B (en) * | 2011-04-01 | 2012-10-10 | 江苏沪宁钢机股份有限公司 | Square connection gridding single-layer arch-shaped net shell roof structure and manufacturing method thereof |
| CN102888935A (en) * | 2011-07-18 | 2013-01-23 | 湖南邱则有专利战略策划有限公司 | Shearing force prefabricated component for assembled-type hollow grid plate floor system structure |
| CN102888936A (en) * | 2011-07-18 | 2013-01-23 | 湖南邱则有专利战略策划有限公司 | Shearing force prefabricated component for assembled-type hollow grid plate floor system structure |
| CN107916739A (en) * | 2017-12-22 | 2018-04-17 | 贵州大学 | Large-span concrete bucket shape grid shell roof structure and preparation method thereof |
| CN108018978A (en) * | 2017-12-22 | 2018-05-11 | 贵州大学 | Intend flat grid shell roof structure and preparation method thereof in four slope of large-span concrete |
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