Stay-in-place formwork with anti-deformation panels
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04B-002/00
E04B-002/86
E04G-011/06
E04G-017/06
출원번호
US-0360571
(2012-11-23)
등록번호
US-9441365
(2016-09-13)
국제출원번호
PCT/CA2012/050849
(2012-11-23)
국제공개번호
WO2013/075250
(2013-05-30)
발명자
/ 주소
Richardson, George David
Krivulin, Semion
Fang, Zi Li
출원인 / 주소
CFS Concrete Forming Systems Inc.
대리인 / 주소
Rattray, Todd A.
인용정보
피인용 횟수 :
1인용 특허 :
105
초록▼
A formwork apparatus for forming a concrete structure comprises a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship. Each one of the elongated panels comprises an outer surface that extends between its
A formwork apparatus for forming a concrete structure comprises a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship. Each one of the elongated panels comprises an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface. The inner surface comprises one or more inwardly projecting convexities that extend between the transverse edges. The inwardly projecting convexities may comprise arcuate-shaped surfaces. The inwardly projecting convexities may comprise a plurality of transversely adjacent convexities. There may be brace elements that extend part way between or all the way between the outer and inner surfaces.
대표청구항▼
1. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that e
1. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising one or more arcuate and inwardly projecting convexities that extend between the transverse edges and the arcuate and inwardly projecting convexities integrally coupled to the outer surface at each of the transverse edges;each one of the elongated panels comprising one or more brace elements that extend between the inner surface and the outer surface at angles that are non-orthogonal to the outer surface; wherein: each panel comprises a plurality of brace elements and wherein the brace elements are non-parallel with one another; andthe brace elements are arranged in pairs that are symmetric about a transverse mid-plane of the panel. 2. A formwork apparatus according to claim 1 wherein a first pair of the brace elements nearest to the transverse mid-plane of each panel extends from the inner surface in directions away from the transverse mid-plane. 3. A formwork apparatus according to claim 2 wherein each of the brace elements of the first pair of the brace elements nearest to the transverse mid-plane extends from a location where the transverse mid-plane intersects the inner surface. 4. A formwork according to claim 1 wherein the formwork comprises one or more support members, each support member comprising a pair of connector components at one of its ends shaped to be complementary with, and for connecting to, the connector components at one transverse edge of each of a pair of edge-adjacent panels, such that the support member helps to provide the connection between the pair of edge-adjacent panels. 5. A formwork according to claim 1 wherein the connector components at the respective transverse edges of the panels are shaped to be complementary to one another such that pairs of edge-adjacent panels are connected directly to one another by forming a connection between their complementary connector components. 6. A formwork according to claim 5 wherein each of the transverse connector components at the respective transverse edges of the panels comprise an engagement portion shaped for engaging a complementary engagement portion of an edge-adjacent panel when a connection is made to the edge-adjacent panel and an abutment portion shaped for abutting against a complementary abutting portion of the edge-adjacent panel when the connection is made to the edge-adjacent panel. 7. A formwork according to claim 5 wherein each pair of complementary connector components which form a connection between a pair of edge-adjacent panels comprises: a female connector component comprising a female engagement portion and an abutment portion; and a male connector component comprising a male engagement portion and an abutment portion; and wherein the female connector component is shaped to receive the male engagement portion when the connection is formed and the respective abutment portions are shaped to abut against one another when the connection is formed. 8. A formwork according to claim 5 wherein each of the complementary connector components comprises a substantially planar abutment surface which is bevelled with respect to the outer surface of the panel and wherein the abutment surfaces of complementary connector components abut against one another when the connection is formed therebetween. 9. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising one or more arcuate and inwardly projecting convexities that extend between the transverse edges and the arcuate and inwardly projecting convexities integrally coupled to the outer surface at each of the transverse edges;each one of the elongated panels comprising one or more brace elements that extend between the inner surface and the outer surface at angles that are non-orthogonal to the outer surface; andwherein the inner surface of each panel comprises a plurality of arcuate, transversely adjacent and inwardly projecting convexities between the transverse edges. 10. A formwork according to claim 9 comprising a support member connected to, and extending inwardly from, each panel and wherein each panel comprises a connector component located between a pair of the arcuate convexities, the connector component connected to a complementary connector component at an edge of the support member for connecting the panel to the support member. 11. A formwork according to claim 9 wherein, for each of the plurality of arcuate, transversely adjacent and inwardly projecting convexities, each panel comprises one or more brace elements that extend between the outer surface and the convexity. 12. A formwork according to claim 11 wherein, for each of the plurality of arcuate, transversely adjacent and inwardly projecting convexities, each panel comprises a plurality of brace elements and wherein the brace elements are oriented at non-orthogonal angles to the outer surface. 13. A formwork according to claim 12 wherein, for each of the plurality of arcuate, transversely adjacent and inwardly projecting convexities, the brace elements are non-parallel with one another. 14. A formwork according to claim 13 wherein, for each of the plurality of arcuate, transversely adjacent and inwardly projecting convexities, the brace elements are arranged in pairs that are symmetric about a transverse mid-plane of the convexity. 15. A formwork according to claim 14 wherein a first pair of the brace elements nearest to the transverse mid-plane of each panel extends from the inner surface in directions away from the transverse mid-plane. 16. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising one or more arcuate and inwardly projecting convexities that extend between the transverse edges and the arcuate and inwardly projecting convexities integrally coupled to the outer surface at each of the transverse edges;each one of the elongated panels comprising one or more brace elements that extend between the inner surface and the outer surface at angles that are non-orthogonal to the outer surface; wherein: each of the complementary connector components comprises a substantially planar abutment surface which is bevelled with respect to the outer surface of the panel and wherein the abutment surfaces of complementary connector components abut against one another when the connection is formed therebetween;the connector components at the respective transverse edges of the panels are shaped to be complementary to one another such that pairs of edge-adjacent panels are connected directly to one another by forming a connection between their complementary connector components; anda first one of the abutment surfaces is bevelled at a first bevel angle with respect to the outer surface of the panel and a second one of the abutment surfaces is bevelled at a second bevel angle with respect to the outer surface of the panel and wherein a sum of the first bevel angle and the second bevel angle is about 180°prior to adding concrete to the formwork. 17. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising one or more arcuate and inwardly projecting convexities that extend between the transverse edges and the arcuate and inwardly projecting convexities integrally coupled to the outer surface at each of the transverse edges;each one of the elongated panels comprising one or more brace elements that extend between the inner surface and the outer surface at angles that are non-orthogonal to the outer surface; wherein: each of the complementary connector components comprises a substantially planar abutment surface which is bevelled with respect to the outer surface of the panel and wherein the abutment surfaces of complementary connector components abut against one another when the connection is formed therebetween;the connector components at the respective transverse edges of the panels are shaped to be complementary to one another such that pairs of edge-adjacent panels are connected directly to one another by forming a connection between their complementary connector components; anda first one of the abutment surfaces is bevelled at a first bevel angle with respect to the outer surface of the panel and a second one of the abutment surfaces is bevelled at a second bevel angle with respect to the outer surface of the panel and wherein a sum of the first bevel angle and the second bevel angle is less than about 180° prior to adding concrete to the formwork. 18. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising one or more arcuate and inwardly projecting convexities that extend between the transverse edges and the arcuate and inwardly projecting convexities integrally coupled to the outer surface at each of the transverse edges;each one of the elongated panels comprising one or more brace elements that extend between the inner surface and the outer surface at angles that are non-orthogonal to the outer surface; andwherein each panel comprises one or more brace elements that extend from the outer surface toward, but not into contact with, the inner surface. 19. A formwork according to claim 18 wherein each panel comprises one or more primary brace elements that extend from the outer surface toward, and into contact with, the inner surface. 20. A formwork according to claim 19 wherein the one or more primary brace elements of each panel comprises a plurality of primary brace elements and wherein the primary brace elements are oriented at non-orthogonal angles to the outer surface. 21. A formwork according to claim 20 wherein the primary brace elements are non-parallel with one another. 22. A formwork for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising an outer surface that extends between its transverse edges and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising one or more arcuate and inwardly projecting convexities that extend between the transverse edges and the arcuate and inwardly projecting convexities integrally coupled to the outer surface at each of the transverse edges;each one of the elongated panels comprising one or more brace elements that extend between the inner surface and the outer surface at angles that are non-orthogonal to the outer surface; andwherein each one of the panels comprises one or more anchor components that extend inwardly from the inner surface. 23. A formwork according to claim 22 wherein the one or more anchor components are positioned at one or more corresponding locations transversely spaced apart from the apexes of the one or more inwardly projecting convexities. 24. A formwork according to claim 22 wherein the one or more anchor components also extend transversely and longitudinally. 25. A formwork according to claim 22 wherein an innermost extent of each anchor component is co-planar with the apexes of the one or more inwardly projecting convexities on a notional plane that is parallel with the outer surface. 26. A formwork according to claim 22 wherein the one or more anchor components comprise a plurality of anchor components and wherein each of the plurality of anchor components extends inwardly beyond the apexes of the one or more inwardly projecting convexities. 27. A formwork apparatus for forming a concrete structure, the formwork apparatus comprising: a plurality of elongated panels comprising connector components at their transverse edges for connecting to one another in edge-adjacent relationship;each one of the elongated panels comprising: an outer surface that extends between its transverse edges; an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising an arcuate and inwardly projecting convexity that extends between the transverse edges, the arcuate and inwardly projecting convexity integrally coupled to the outer surface at each of the transverse edges; and one or more anchor components that extend inwardly from the inner surface;wherein an innermost extent of each anchor component is co-planar with an apex of the inwardly projecting convexity on a notional plane that is parallel with the outer surface. 28. A method of arranging panels of a stay-in place formwork for transport or storage, the method comprising: providing a plurality of panels, each panel comprising: connector components at its transverse edges for connecting to one another in edge-adjacent relationship; an outer surface that extends between its transverse edges; and an inner surface that extends between its transverse edges at a location inwardly spaced apart from the outer surface, the inner surface comprising an arcuate and inwardly projecting convexity that extends between the transverse edges;for each of the plurality of panels, providing the panel with one or more anchor components that extend inwardly from the inner surface wherein an innermost extent of each anchor component is co-planar with an apex of the inwardly projecting convexity on a notional plane that is parallel with the outer surface; andstacking the plurality of panels such that for each pair of adjacent panels, the apex of the inwardly projecting convexity of the inner surface and the innermost extents of the one or more anchor components of a first adjacent panel contact the outer surface of a second adjacent panel.
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