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Reliability Assessment of Alternate Path Method for Structural Steel Connections

Noe, Norman E, III
http://rave.ohiolink.edu/etdc/view?acc_num=osu1546559048564245

Abstract Details

2019, Master of Science, Ohio State University, Civil Engineering.
Progressive collapse is a failure mechanism that occurs when a primary structural member fails, resulting in a propagation of failure through the adjoining structural members. The resistance method known as Alternate Path Method (APM) outlined by the UFC 04-23 (2013) is implemented to resist the progressive collapse failure. Steel moment frames are used to redistribute the load after a column is notionally removed. This study analyzes connections known as SidePlate, Welded Unreinforced Flanges with Welded Webs (WUF-W), and Reduced Beam Section (RBS), in terms of their ability to enhance the progressive collapse performance of a steel moment frame building using reliability analysis. In this research, RAM Structural Systems (2018) is used to design the superstructure of a mock-up structure using ASCE 7-16 (2016) and AISC 15th ed. (2018) recommendations. The mock-up structure represents a building design that would be produced in the practicing structural engineering field. The structural model is transferred to SAP2000 (2018) to perform a nonlinear dynamic analysis for APM using the guidance from UFC (2013). A newly developed tool is introduced to automate the process of APM in SAP2000. The tool is capable of accurately performing a column removal scenario for practicing engineers. The automated process is transferred to Matlab (2012) to perform a simulation-based reliability analyses. The performance of the steel moment frame connections is demonstrated by producing the probability of structural failure at different column removal locations. The reliability of each steel moment frame connections is calculated using a new state-of-the-art method called ESC adaptive kriging technique. Fragility curves are developed with respect to the total floor live load to provide practicing engineers with information on the optimal steel moment frame connection to select given a specified floor live load. The overall process is clearly displayed to show proof of concept and ease of replicability for future endeavors.
Abdollah Shafieezadeh (Advisor)
Halil Sezen (Committee Member)
Jieun Hur (Committee Member)
122 p.
Civil Engineering
Alternate Path Method; Progressive Collapse; Steel Moment Frame Connections; Reliability;

Recommended Citations

Citations

  • Noe, III, N. E. (2019). Reliability Assessment of Alternate Path Method for Structural Steel Connections [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546559048564245

    APA Style (7th edition)

  • Noe, III, Norman. Reliability Assessment of Alternate Path Method for Structural Steel Connections. 2019. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1546559048564245.

    MLA Style (8th edition)

  • Noe, III, Norman. "Reliability Assessment of Alternate Path Method for Structural Steel Connections." Master's thesis, Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546559048564245

    Chicago Manual of Style (17th edition)

osu1546559048564245
655
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This open access ETD is published by The Ohio State University and OhioLINK.