A study on the probabilistic safety assessment of the truss structure designed by the LRFD code

The probabilistic analyses provide a more rational approach for the safety assessment of structures since they consider uncertainties in calculations. Consequently, design specifications engineering are gradually transformed from allowable stress to reliability-based such as load and resistance factors (LRFD) or partial factor design. andresistance provided codes successfully determined frameworks. However, these classified into semi-probabilistic-based because no analysis is required practice. Thus, actual reliability index solutions maynot be close target value expected. This study employs fully an additional examine LRFD-based truss structure. A planar truss,which designed following semi-probabilistic code, thoroughly examined. Several feasible sections first using LRFD code. Then, indexes evaluated check if meet specified codes. tension compression members concerning strength limit state maximum deflection presenting service ability investigated representative performances. results indicate thatthe higher than stipulated Compared members, redundancy terms observed elements, although both at state. Moreover, obtained theserviceability strongly dependent on component (i.e., floor roof) where utilized.