Assessment of the Additional Shear Demand induced by Masonry Infills on Reinforced Concrete Elements in presence of Seismic Actions
Valentina Bogatkina
Assessment of the Additional Shear Demand induced by Masonry Infills on Reinforced Concrete Elements in presence of Seismic Actions.
Rel. Fabio Di Trapani, Guido Camata. Politecnico di Torino, Master of science program in Civil Engineering, 2022
Abstract
The influence of masonry infills in a reinforced concrete (RC) structure is often underestimated in the structural design and assessment of existing structures. Despite of a non-structural role of the infills, they can have beneficial or adverse effects on the bearing capacity of a building and thus they should be taken into account. An additional shear due to the presence of the infills can be the cause of a brittle failure of the columns. In such a framework a refined numerical micro-model was created by means of the softwares OpenSees and STKO that allowed to simulate the complicated behavior of the RC frame-infill interaction.
A strategy to simulate the infills was chosen in which both bricks and mortar joints are modeled using 2D plane-stress continuum elements with a non-linear behavior
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