Robustness assessment for progressive collapse of framed structures using pushdown analysis methods
by Da-Gang Lu; Shuang-Shuang Cui; Peng-Yan Song; Zhi-Heng Chen
International Journal of Reliability and Safety (IJRS), Vol. 6, No. 1/2/3, 2012

Abstract: The issue of robustness assessment for progressive collapse of structures has been paid much attention to in the community of civil engineering since the 9/11 event. In this paper, both deterministic indices and reliability-based indices are introduced to quantify the robustness of a structure. The conventional deterministic pushdown analysis is improved to take into account the loading scheme for simulating column loss. To consider stochastic system properties, a random pushdown analysis is proposed by an improved point estimation method based on Nataf transformation. By using the developed pushdown methods, the reserve load carrying capacity of the damaged structure is evaluated, the robustness for resisting progressive collapse of the damaged structure is quantitatively assessed and the key element to be removed which is critical to structural global performance is identified. A code-conforming reinforced concrete frame structure is taken as a case study to demonstrate the applicability of the newly developed methods.

Online publication date: Sat, 27-Dec-2014

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Reliability and Safety (IJRS):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com