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Numerical Analysis of the Influence of Geometry of ceramic units （Blocks） on Structural Walls

Journal of Civil Engineering and Architecture 2016年第1期10卷 44-52页

作者： Gihad Mohamad Eduardo Rizzatti Humberto Roman Gerson M. S. Alva Andre Lubeck Structural and Building Construction Department Federal University of Santa Maria Santa Maria 97105-900 Brazil Building Construction Department Federal University of Santa Catarina Santa Maria 97105-900 Brazil Civil Engineering College Federal University of Uberlandia Uberldndia 38414-172 Brazil Civil Engineering College Federal University of Pampa Alegrete 97546-550 RS Brazil

This paper presents finite element results of ceramic masonry prisms and walls under concentric compression. Four different hole geometries of ceramic units were studied （called Types A, B, C and D）. The A-type unit had two rectangular hollows, B-type and C-type units have two rounded hollows and different net areas, mad the D-type unit had two rectangular hollows and a double central web. This study analyzed units, prisms and structural walls joined by bedding mortar. The objective was to verify the stress distribution in units and mortars. The results showed that the distribution of compressive stress along the length and width of those units was uniform, but lateral tensile stress along the length was distinct for different geometries. In addition, this study observed that hollow shapes have an important influence in stress distribution. The D-type unit was the one that showed more uniform tension distribution, without peaks of stress concentration. This indicates that a D-type unit is the most efficient unit for use in masonry structures.

关键词： ceramic units structural masonry geometry.

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