Title: Performance of precast concrete moment frames subjected to column removal: Part 2, computational analysis
Date Published: September-October 2017 
Volume: 62
Issue: 5 
Page Numbers: 53-74 
Authors: Yihai Bao, Joseph A. Main, H. S. Lew, and Fahim Sadek
https://doi.org/10.15554/pcij62.5-01

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Abstract

This paper presents a computational study of two precast concrete moment-frame assemblies, each comprising three columns and two beams, subjected to displacement-controlled vertical loading of the unsupported center column to simulate a column removal scenario. One assembly was part of an ordinary moment frame, and the other was part of a special moment frame. Finite element models of each assembly were developed to capture the experimentally observed behaviors and failure modes; provide additional insights into behaviors and failure modes that could not be directly observed from the experimental data, including the sensitivity of the responses to variations in key factors; and evaluate the structural robustness of the two assemblies by comparing their ultimate capacities with the applicable gravity loading, including the dynamic effects associated with sudden column loss.

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