Print Email Facebook Twitter Validation of efficient numerical model for out-of-plane bending of unreinforced masonry walls Title Validation of efficient numerical model for out-of-plane bending of unreinforced masonry walls Author Van Dam, J. Contributor Rots, J.G. (mentor) Hendriks, M.A.N. (mentor) Mariani, V. (mentor) Terwel, K.C. (mentor) Houben, L.J.M. (mentor) Faculty Civil Engineering and Geosciences Department Structural Engineering Programme Structural Mechanics Date 2015-06-05 Abstract This study investigates four numerical models to approximate the static and dynamic resistance of an unreinforced masonry wall loaded in one-way out-of-plane bending. From validation with experimental data it was found that for the combination of shell and interface elements with discrete cracking the static and dynamic behaviour of unreinforced masonry walls for out-of-plane bending is dependent on the interface stiffness. Due to Euler-Bernouilli's hypothesis, on which these elements are based, the deformation over the thickness remains straight, while in reality the wall deforms non-linearly over the thickness. A reduction of the interface stiffness is proposed to mimic crack opening with a linear deformation and obtain realistic results. The validated model is used for comparison with the analytical calculation of NPR 9998. This shows that the boundary condition assumptions can be made differently to increase the resistance of out-of-plane walls. Subject out-of-plane bendingunreinforced masonrynumerical validationshell elementsearthquake loadingone-way bendingmicro-modellinginterface stiffness To reference this document use: http://resolver.tudelft.nl/uuid:25be8f0b-dcde-4ce3-a7f2-43d3215c70d2 Part of collection Student theses Document type master thesis Rights (c) 2015 Van Dam, J. Files PDF Thesis_J_van_Dam.pdf 9.98 MB Close viewer /islandora/object/uuid:25be8f0b-dcde-4ce3-a7f2-43d3215c70d2/datastream/OBJ/view