A study on performance of 3D RC frames with masonry in-fill under dynamic loading conditions

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• 作者：R. Srinivasan ; S. Suresh Babu ; Sidramappa V. Itti
• 关键词：3 ; D reinforced conrete frames ; masonry infill ; dynamic loads
• 刊名：KSCE Journal of Civil Engineering
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：21
• 期：1
• 页码：322-328
• 全文大小：
• 刊物类别：Engineering
• 刊物主题：Civil Engineering; Industrial Pollution Prevention; Geotechnical Engineering & Applied Earth Sciences;
• 出版者：Korean Society of Civil Engineers
• ISSN：1976-3808
• 卷排序：21

文摘

This paper enlightens the response or behavior of 3D RC frames with various configurations & amount of masonry in-fill, under dynamic loading conditions. A 1:3 scale, two bay three storey models of a typical office building were constructed with various locations and percentage of masonry in-fill. Components of structure ie, structural sub-assemblages of columns, beams and slabs were casted from the same materials. A series of various ground motion tests were performed on the building model using servo controlled hydraulic actuator. The dynamic characteristics, such as frequency, acceleration and amplitude were identified at each frequency level. The effect of de-bonding of masonry in-fill with RC frames with increase in base acceleration was also observed in this study. Analytical models were developed to predict the natural characteristics and dynamic properties of structure. In modal analysis, masonry in-fill was modeled as equivalent diagonal strut and thickness of strut was taken as equal to in-fill thickness. Material properties and boundary conditions were assigned suitably for in-fill.