TY - JOUR N2 - Deriving the formulas for strain components, we are assuming, that cross-section of a rod being rotated in space during deformation does not need to be perpendicular to deformed centroid line. This not a quite intuitive assumption allows for more compact and easier formulas for strain tensor or equilibrium equations. Derived transformations between actual and initial coordinate system, components of strain tensor and virtual works principle for investigated spatially curved beams of bisymmetric cross-section are shown in this paper. Conformity with other models from referenced literature is also shown. L1 - http://www.czasopisma.pan.pl/Content/84069/mainfile.pdf L2 - http://www.czasopisma.pan.pl/Content/84069 PY - 2016 IS - No 1 EP - 36 KW - space-curved thin-walled rods KW - bisymmetric cross-sections KW - finite deformations KW - second-order approximations of finite rotations KW - Reissner model KW - Bernoulli hypothesis A1 - Bijak, R. A1 - KoƂodziej, G. PB - WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES DA - 31.03.2016 T1 - On finite deformations of spatially curved bisymmetric thin-walled rods SP - 25 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/84069 T2 - Archives of Civil Engineering ER -