engleski

Structural performance levels for masonry infilled frames

Performance levels in performance-based design procedures have been described in several ways according to the operational status of the structure or the level of damage sustained up to collapse. The selection of the appropriate drift associated with different levels of damage for the design is significant in terms economy and safety. The identification of drift levels associated with different states of damage remains one of the unresolved issues in the development of performance objectives in performance-based design and assessment procedures. The objective of this study is to develop the approach to establish the drift of masonry infilled frames that is associated with different definable levels of damage to use as performance objectives in the design of new structures and the evaluation of the seismic resistance of existing structures. Analytical and experimental data were used to examine the correlation between drift and damage of masonry infilled frames. The analytical procedure included pushover analyses of various designs of reinforced concrete frames with masonry infills. Seismic response has been analysed, considering Inter-storey Drift Ratio (IDR) as main intensity measure. The experimental results were obtained from Experimental Database of Infilled Frames – EDIF and reviewed for the appropriateness and consistency of the data. As a result, a new relationship among structural performance, damage levels and Inter-storey drift ratios for masonry infilled frames was developed.

Performance level ; Infilled frame ; Experimental database ; Pushover analysis

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