Numerical Investigation on the Progressive Collapse Resistance of an RC Building with Brick Infills under Column Loss

Interior brick-infill partitions are usually considered as non-structural components and only their weight is accounted for in practical structural design. In this study, their effect on the progressive collapse resistance of an RC building subjected to sudden column loss is investigated. Three notional column loss conditions with four different brick-infill locations are considered. Column-loss response analyses of the RC building with and without brick infills are carried out. Analysis results indicate that the collapse resistance is only slightly influenced by the brick infills due to their brittle failure characteristic. Even so, they may help to reduce the inelastic displacement response under column loss. For practical engineering, it is reasonably conservative to only consider the weight of brick-infill partitions in the structural analysis.

Authors:

• Meng-Hao Tsai
• Tsuei-Chiang Huang

Keywords:

• Progressive collapse
• column loss
• brick-infill partition
• compression strut.

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