ELONGATED CONSTRUCTIONAL MEMBER MADE OF COMPOSITE MATERIAL (VARIANTS) Russian patent published in 2006 - IPC E04C3/29 E04C2/10 B29D31/00 B29C47/00 B29C70/06 B29C70/24 

FIELD: construction, particularly structural elongated elements designed for load-supporting and built-up from parts of different materials.

SUBSTANCE: constructional member comprises reinforcing frame 1 defined by profile walls 5, 6. Profile walls 5, 6 are connected with each other by bridges 7, 8 so that at least one longitudinal cavity 9 and four interconnecting elements are created. The interconnecting elements are adapted for profile walls assemblage in different planes. The first interconnecting elements have female contact surfaces 12, 13, the second ones have male contact surfaces 16, 17. The male contact surface dimensions are equal to that of the contact surfaces 12, 13. The contact surfaces are provided with longitudinally directed fixing parts 19, 20 and 21, 22 having profiles formed so that profile outlines mate each other in pairs. Fixing parts 19, 20 and 21, 22 are integrally made with corresponding male 16, 17 and female 12, 13 contact surfaces of material having structure equivalent to that of profile wall 5, 6 material. Female contact surfaces 12, 13 including fixing parts 19, 20 are spaced apart equal distances α=0.1-3 mm from male contact surfaces 16, 17 having fixing parts 21, 22. In accordance with one embodiment one profile wall has through longitudinal slot. In another embodiment reinforcing longitudinal bridge is formed inside longitudinal cavity. The bridge has arbitrary profile and is supported by bridges or by one bridge and one profile wall or by one profile wall made of reinforcing material with volume content equal to reinforcing material of profile wall.

EFFECT: provision of stable physical and mechanical properties of constructional panels composed of above constructional members and improved construction panel assemblage and fastening.

68 cl, 44 dwg