Unnikrishnan, S.Narasimhan, M.C.Venkataramana, K.2026-02-052012Journal of Structural Engineering (India), 2012, 39, 3, pp. 332-3469700137https://idr.nitk.ac.in/handle/123456789/26978Box-type laterite masonry structures are widely seen in south-west coastal areas of India. Not many studies are available in the literature on the dynamic response of such structures. Free vibration analysis of box-type laterite masonry structures has been attempted in this study, as a preliminary to a detailed dynamic analysis. Finite element analysis has been conducted to And the natural frequencies and corresponding mode shapes of box-type laterite masonry buildings. Results of detailed parametric studies conducted to find the effect of various parameters like modulus of elasticity of laterite masonry, provision of a lintel band or a roof slab, openings in long walls and aspect ratio on the natural frequencies and their mode shapes of box-type laterite masonry buildings are presented and discussed in this paper.Coastal areaFree vibrationFree-vibration analysisLaterite masonryMasonry buildingMasonry structuresMode shapesParametric studyRoof slabsAspect ratioCoastal zonesDynamic responseFinite element methodMasonry constructionMasonry materialsNatural frequenciesVibration analysisSoils