A Comparative Study of First-Order Reliability Method-Based Steepest Descent Search Directions for Reliability Analysis of Steel Structures
Joint Authors
Makhduomi, Hamed
Keshtegar, Behrooz
Shahraki, Mehdi
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-07
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Three algorithms of first-order reliability method (FORM) using steepest descent search direction are compared to evaluate the reliability index of structural steel problems which are designed by the Iranian National Building code.
The FORM formula is modified based on a dynamic step size which is computed based on the merit functions named modified Hasofer-Lind and Rackwitz-Fiessler (MHL-RF) method.
The efficiency of the gradient, HL-RF, and MHL-RF method was compared for a bar structure under tensile capacity, a multispan beam under bending capacity, a connection under tension load, and a column under axial force.
The results illustrated that the MHL-RF method is more efficient than the HL-RF and gradient method.
The designed steel components by the Iranian National Building code showed good confidence levels with the reliability index in the range from 2.5 to 3.0.
American Psychological Association (APA)
Makhduomi, Hamed& Keshtegar, Behrooz& Shahraki, Mehdi. 2017. A Comparative Study of First-Order Reliability Method-Based Steepest Descent Search Directions for Reliability Analysis of Steel Structures. Advances in Civil Engineering،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1121373
Modern Language Association (MLA)
Makhduomi, Hamed…[et al.]. A Comparative Study of First-Order Reliability Method-Based Steepest Descent Search Directions for Reliability Analysis of Steel Structures. Advances in Civil Engineering No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1121373
American Medical Association (AMA)
Makhduomi, Hamed& Keshtegar, Behrooz& Shahraki, Mehdi. A Comparative Study of First-Order Reliability Method-Based Steepest Descent Search Directions for Reliability Analysis of Steel Structures. Advances in Civil Engineering. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1121373
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121373