System-based design of planar steel frames, I: Reliability framework

Abstract The design of steel frames by advanced analysis (second-order inelastic analysis with imperfections) of overall system behaviour is permitted in the American steel specification AISC360-10 and the Australian Standard AS4100. In both specifications, the strength of a structural frame can be determined by a rigorous system nonlinear analysis in lieu of checking member resistances to the specific provisions of the Specification, provided that the limit states covered by the Specification equations are detected by the inelastic analysis, and a comparable or higher level of structural reliability is achieved by the inelastic analysis than by member-based design. This system-based, design-by-advanced analysis approach is termed “Direct Design Method” (DDM). In DDM, a system resistance factor is applied to the frame strength. The system factor in AISC360-10 was adopted without considering its impact on frame reliability. This paper describes the framework for developing reliability-based system resistance factors suitable for use with DDM. A simple frame is used to demonstrate the procedures. Appropriate system resistance factors for various load cases and design recommendations are presented in a companion paper [1] based on the system reliability analyses of a series of steel frames.

[1]  Hao Zhang,et al.  System-based design of planar steel frames, II: Reliability results and design recommendations , 2016 .

[2]  Dan M. Frangopol,et al.  Balancing weight, system reliability and redundancy in a multiobjective optimization framework , 1990 .

[3]  Theodore V. Galambos,et al.  Updating Standard Shape Material Properties Database for Design and Reliability , 2003 .

[4]  Bruce R. Ellingwood,et al.  Probability Based Load Criteria: Load Factors and Load Combinations , 1982 .

[5]  C. Allin Cornell,et al.  Probability Based Load Criteria: Assessment of Current Design Practice , 1982 .

[6]  Milan Holický,et al.  Design characteristics of structural steels based on statistical analysis of metallurgical products , 2004 .

[7]  J. Strating,et al.  Computer Simulation of the E.C.C.S. Buckling Curve using a Monte-Carlo Method , 1973 .

[8]  Shabnam Shayan,et al.  System reliability-based design of 2D steel frames by advanced analysis , 2013 .

[9]  Donald W. White,et al.  Stability of steel frames: the cases for simple elastic and rigorous inelastic analysis/design procedures , 2000 .

[10]  Ahmed H. Zubydan.  Inelastic second order analysis of steel frame elements flexed about minor axis , 2011 .

[11]  Seung-Eock Kim,et al.  Direct design of three-dimensional frames using practical advanced analysis , 2001 .

[12]  Quanwang Li,et al.  Damage inspection and vulnerability analysis of existing buildings with steel moment-resisting frames , 2008 .

[13]  T. Galambos,et al.  Properties of Steel for Use in LRFD , 1978 .

[14]  Dan M. Frangopol,et al.  System reliability and redundancy in structural design and evaluation , 1994 .

[15]  Kim J.R. Rasmussen,et al.  Probabilistic modelling of residual stress in advanced analysis of steel structures , 2014 .

[16]  Cuong Ngo-Huu,et al.  Nonlinear analysis of space steel frames using fiber plastic hinge concept , 2007 .

[17]  Hoang Van Long,et al.  Local buckling check according to Eurocode-3 for plastic-hinge analysis of 3-D steel frames , 2008 .

[18]  Robert E. Melchers,et al.  Structural Reliability: Analysis and Prediction , 1987 .

[19]  Kim J.R. Rasmussen,et al.  System-based design for steel scaffold structures using advanced analysis , 2013 .

[20]  Y. Fukumoto,et al.  Evaluation of multiple column curves using the experimental data-base approach , 1983 .

[21]  William McGuire,et al.  INELASTIC LIMIT STATES DESIGN. PART I: PLANAR FRAME STUDIES , 1992 .

[22]  Kim J.R. Rasmussen,et al.  On the modelling of initial geometric imperfections of steel frames in advanced analysis , 2014 .

[23]  Nicholas S. Trahair,et al.  Advanced analysis of steel building frames , 1992 .

[24]  Bruce R. Ellingwood,et al.  Probability-based codified design: past accomplishments and future challenges , 1994 .

[25]  Nicholas S. Trahair,et al.  Out-of-plane advanced analysis of steel structures , 2003 .

[26]  Mahen Mahendran,et al.  Distributed plasticity analysis of steel frame structures comprising non-compact sections , 2000 .

[27]  Bruce R. Ellingwood,et al.  System reliabilities in steel structural frame design by inelastic analysis , 2014 .

[28]  Stephen G. Buonopane,et al.  Reliability of Steel Frames Designed with Advanced Analysis , 2006 .