The paper deals with the problem of lateral beam buckling of simply supported hot-rolled I-beams. Lateral stability of compression member/flange is very important factor in the design of PEB member, increasing the number of braced points thus decreasing the unbraced length of compression member/flange improves the performance of those member/flange under compression force and increases their compressive strength.when the compression flange is directly connected to roof purlins/wall grits the flange is considered braced at the points of intersection with those members, but when those members are connected with the opposite flange the flange with roof purlins/wall girts, the flange brace angle is required to connect the compression flange with roof purlins/wall girts, the flange brace system comprising flange brace angles and roof purlins/wall girts is providing lateral stability to compression flange. In Pre Engineering Building (PEB) structure to prevent lateral torsion bucking we have provided restrain, there is no Indian Standard clause available for preventing lateral torsion buckling of I Beam. According to metal building manufacturers association (MBMA), the standard distance for providing flange brace is 1.5m but in actual practice it’s variesin that particular paper we have to study 1.5m distance is sufficient for restraining I beam using Ansys software.
Volume 11 | 08-Special Issue
Pages: 3417-3422