Bimoment

Bimoment (aka warping moment){{cite book | url=https://books.google.com/books?id=A2njOXQMxiQC&q=define%3ABimoment&pg=PA273 | title=Theory of Beam-Columns, Volume 2: Space Behavior and Design | accessdate=February 11, 2012 | page=274| isbn=9781932159776 | last1=Chen | first1=Wai-Fah | last2=Atsuta | first2=Toshio | date=15 December 2007 }} is a term used in the analysis of beams (continuum mechanics) that relates to torsion and warping. Its symbol is Mω.{{cite book | url=https://books.google.com/books?id=A2njOXQMxiQC&q=%22Bimoment%22&pg=PA273 | title=Theory of Beam-Columns, Volume 2: Space Behavior and Design | publisher=McGraw-Hill Inc. | date=2008 | accessdate=December 6, 2011 | author=Wai-Fah Chen, Toshio Atsuta| isbn=9781932159776 }}

Bimoment show the distributions at a cross-section of (longitudinal) warping stress in cases of torsional warping and distortional warping, respectively.{{cite book | url=https://books.google.com/books?id=debvAAAAMAAJ&q=define:Bimoment | title=Methods of analysis and design of concrete boxbeams with side cantilevers: Technical report | year=1974 | publisher=Cement and Concrete Association | accessdate=February 11, 2012 | page=1974| isbn=9780721009599 }} Generally, a bimoment can be represented by a pair of equal and opposite bending moments.{{cite book | url=https://books.google.com/books?id=z8mGAAAAIAAJ&q=%22Bimoment%22 | title=Proceedings - Institution of Civil Engineers: Research and theory, Volume 63 | publisher=Institution of Civil Engineers | date=1977 | accessdate=February 11, 2012 | page=848}}