Comparative Study of First Order Reliability Method Based on Steepest Descent Search Directions for Reliability Analysis of Steel Structures

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Makhdoumi H.; KESHTEGAR B.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Advanced Defense Science and Technology Year:2018 | Volume:9 | Issue:3 Page(s): 313-323

Download Full-Text

Persian Verion

View:

786

Download:

Cites:

Information Journal Paper

Title

Comparative Study of First Order Reliability Method Based on Steepest Descent Search Directions for Reliability Analysis of Steel Structures

Author(s)

Makhdoumi H. | KESHTEGAR B. | Issue Writer Certificate

Keywords

HL-RF MethodQ1

Reliability AnalysisQ1

Modified HL-RFQ1

Steel StructuresQ1

Limit State FunctionQ1

Abstract

The reliability assessment of structures under uncertainties in external loads including blast, gravity and lateral loads and also material properties change, is important to determine the reliable levels of structures. Therefore, the Reliability Analysis can be provided a suitable management from the reliable levels subjected to the increasing the loads and decreasing the resistance of structures. In this paper, three algorithms of first order reliability method (FORM) using steepest descent search direction are applied to evaluate the failure probabilities 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 dynamically adjusted based on the merit functions between 0 and 1. 5 named as modified Hasofer-Lind and Rackwitz-Fiessler (MHL-RF) method. The convergence performances for both robustness and efficiency of the gradient method, HL-RF and proposed MHL-RF were compared through four steel examples including a bar structure under tensile capacity, a multi-span beam under bending capacity, a connection under tension load and a column under axial force. The results illustrated that the all structural reliability methods-based steepest descent search direction are robustly converged, but the MHL-RF Method is more efficient than the HL-RF and gradient method. The designed steel components by the Iranian National Building code where shown a good confidence levels with the reliability index in the range from 2. 5 to 3. 0.

Cites

No record.

References

No record.

Cite

APA: Copy

Makhdoumi, H., & KESHTEGAR, B.. (2018). Comparative Study of First Order Reliability Method Based on Steepest Descent Search Directions for Reliability Analysis of Steel Structures. (JOURNAL OF ADVANCED DEFENCE SCIENCE AND TECHNOLOGY) JOURNAL OF PASSIVE DEFENCE SCIENCE AND TECHNOLOGY, 9(3 ), 313-323. SID. https://sid.ir/paper/167423/en

Vancouver: Copy

Makhdoumi H., KESHTEGAR B.. Comparative Study of First Order Reliability Method Based on Steepest Descent Search Directions for Reliability Analysis of Steel Structures. (JOURNAL OF ADVANCED DEFENCE SCIENCE AND TECHNOLOGY) JOURNAL OF PASSIVE DEFENCE SCIENCE AND TECHNOLOGY[Internet]. 2018;9(3 ):313-323. Available from: https://sid.ir/paper/167423/en

IEEE: Copy

H. Makhdoumi, and B. KESHTEGAR, “Comparative Study of First Order Reliability Method Based on Steepest Descent Search Directions for Reliability Analysis of Steel Structures,” (JOURNAL OF ADVANCED DEFENCE SCIENCE AND TECHNOLOGY) JOURNAL OF PASSIVE DEFENCE SCIENCE AND TECHNOLOGY, vol. 9, no. 3 , pp. 313–323, 2018, [Online]. Available: https://sid.ir/paper/167423/en

Related Journal Papers