Fragility Assessment of Progressive Collapse Buildings

建築物逐步倒塌之易損分析

陳冠雄(Kuan-Hsoung Chen) ； 廖克弘(Ke-Hung Liao) ； 陳裕翔(Yu-Hsiang Chen)

《中華科技大學學報》 48期 (2011/07) Pp. 67-81

https://doi.org/10.7095/JCUST.201107.0067

摘要

本研究主要探討建築物逐步倒塌之易損分析，以一棟九層樓之抗彎矩剛構架之鋼結構建築物為案例探討。由於建築物柱子逐步倒塌而導致梁產生非線性行為，亦納入考慮。以非線性推垮分析，藉以求取倒塌之能耐曲線與塑性鉸分佈圖。

關鍵字

逐步倒塌 ； 抗彎矩剛構架 ； 塑性鉸 ； 能耐曲線 ； 非線性推垮分析

並列摘要

The progressive damage of the steel moment resisting frame building is conducted in this research. The feature of this is investigated with a nine-story moment frame prototype building. The loss column scenario leads to develop the plastic hinges of beams and columns having addressed accordingly. The vulnerability of frames due to sudden column removal is performed with a nonlinear pushover analysis. The capacity curves of the nonlinear pushover analysis and the configurations of plastic hinges are constructed to identify the risk of the progressive damage.

並列關鍵字

progressive damage ； steel moment resisting frame building ； plastic hinge ； capacity curve ； nonlinear pushover analysis