THE JOINTS OF COLD-FORMED PURLINS
Abstract
Two problems of purlin design related to bending moment distribution in continuous and in simply supported purlin are considered. Bending moment redistribution in purlin may be realized using bearing spring (BS) elements. Preliminary results of numerical experiments show the substantial reduction of bending moments in purlin thus obtaining less section heights and web thicknesses. The approach to reduction of internal forces in purlins may help in resolving some problems typical for cold-formed thin-walled structures. There may be also some optimization possible relating BS-elements lengths and thicknesses and cross sections.
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