Abstract
Multi-ribbed wall structure (MRWS) is a new structural system developed in recent years, where multi-ribbed walls are primary load-resistant elements. This paper is focused on evaluation of elastic properties and lateral stiffness of multi-ribbed walls for simplified analysis and design. Based on Mori–Tanaka method, an equivalent elastic model is developed first to predict the elastic properties of multi-ribbed walls and overcomes non-physical order of operation dependencies the other two methods face. An equation to calculate the lateral stiffness of the anisotropic equivalent elastic wall is then developed that is calibrated through a parametric study. The accuracy of the developed method is verified by large-scale tests. The present simplified method provides a valuable basis for designing high-rise multi-ribbed wall structures.
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