Torsion studies on steel fibre reinforced concrete

Abstract

Design engineers generally ignored torsion assuming that its effects newlinecan be taken care by using large safety factor in flexural design Torsion design newlinearoused a serious interest since late 1950s because of reinforced concrete newlinestructures such as space frames beams that support cantilever slabs balconies newlinespiral staircases horizontally curved beams spandrel beams beams next to newlinefloor openings wall foundation beams skew staircases skew bridges and newlinecircular beams are subjected to large torsion moments newlineIn bridges torsion constitutes a significant design action because of newlineeccentric forces An investigation of concrete beams subjected to pure torsion is newlineof prime interest Skew structures and irregular shape of structures are subjected newlineto torsional impact loading caused by situations such as moving vehicles newlinehitting the components of multistorey structures objects falling from cranes newlineand impact arising from aircraft crash etc newline newline