EFFECTS OF MASONRY INFILL WALL MODELS ON VIBRATION PERIOD AND SEISMIC RESPONSE OF A BUILDING
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Abstract
This research investigates the effects of infill wall models in building structures, modeled using equivalent struts, on the vibration period and seismic response through nonlinear response history analysis (NLRHA). Two types of building models are considered: one where the equivalent strut uses the modulus of elasticity based on recommended guidelines for nonlinear models, and another where the equivalent strut uses an adjusted modulus of elasticity to match the natural frequency measured from the actual building. Each type comprises both 2D and 3D models, and all four building models employ fiber sections to model nonlinear behavior. These models are analyzed with ground motions adjusted to match the target response spectrum. The results are discussed regarding shear forces, deformation, and changes in the vibration period. The study reveals that the building models using the modified modulus of elasticity for the equivalent struts exhibit higher seismic responses and an increase in the vibration period compared to models without the modified modulus of elasticity.
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The published articles are copyright of the Engineering Journal of Research and Development, The Engineering Institute of Thailand Under H.M. The King's Patronage (EIT).
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