Progressive collapse design of seismic steel frames using structural optimization
Current time: 06-18-2018, 12:07 PM
Users browsing this thread: 1 Guest(s)
Author: arshiakh
Last Post: arshiakh
Replies 0
Views 1196

Progressive collapse design of seismic steel frames using structural optimization
#1
Progressive collapse design of seismic steel frames using structural optimization

Author: Min Liu | Size: 1.2 MB | Format: PDF | Quality: Unspecified | Publisher: Elsevier | Year: 2011 | pages: 10 | ISBN: --


[Image: info.png]

This paper uses structural optimization techniques to cost-effectively design seismic steel moment frames with enhanced resistance to progressive collapse, which is triggered by the sudden removal of critical columns. The potential for progressive collapse is assessed using the alternate path method with each of the three analysis procedures (i.e., linear static, nonlinear static, and nonlinear dynamic), as provided in the United States Department of Defense United Facilities Criteria (UFC) Design of Buildings to Resist Progressive Collapse. As a numerical example, member sizes of a two-dimensional, nine-story, threebay regular steel immediate moment frame are optimally determined such that the total steel weight is minimized while the design satisfies both AISC seismic provisions and UFC progressive collapse requirements. Optimization results for the example frame reveal that the traditional minimum weight seismic design, which does not explicitly consider progressive collapse, fails to meet the UFC alternate path criteria associated with any analysis procedure. Progressive collapse design optimization using the linear static procedure produces the most conservative and consequently heaviest design against progressive collapse. In contrast, the more accurate nonlinear static and dynamic procedures lead to more economical designs with UFC-acceptable resistance to progressive collapse, at the expenses of considerable modeling and computing efforts.

[Image: download.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************



[Image: password.png]
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************




[-] The following 5 users say Thank You to arshiakh for this post:
  • Dell_Brett, malc, kowheng, devilmaycry, slowet
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
Progressive collapse analysis of an RC building with exterior partially infilled wall asim99 1 1,493 03-01-2017, 05:02 PM
Last Post: pezhmankhan
Structural and Multidisciplinary Optimization bridgeengineer 2 1,229 04-20-2016, 05:58 PM
Last Post: bridgeengineer
Progressive Collapse of Multi-Storey Buildings due to Sudden Column Loss –Part II: Ap TAFATNEB 0 1,013 05-09-2014, 03:00 PM
Last Post: TAFATNEB
Retrofit Methods to Mitigate Progressive Collapse TAFATNEB 0 1,373 05-09-2014, 12:44 PM
Last Post: TAFATNEB
Progressive Collapse of Bridges—As pects of Analysis and Design TAFATNEB 0 923 05-02-2014, 10:02 AM
Last Post: TAFATNEB



Users browsing this thread: 1 Guest(s)