Seismic Behavior of Masonry Cloister Vaults

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Publicado: dic 18, 2018
DOI: https://doi.org/10.22201/fa.2007252Xp.2018.18.67942

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Satwant Rihal
John Edmisten
Sinhui Chang

Resumen

This paper presents the results of an investigation into earthquake resistance and the behavior of historical masonry cloister vaults. In a previous paper,1 the authors presented a simpli ed structural analysis approach, called the “strip method of analysis,” to assess the lateral load behavior of a relatively shallow cloister vault. In this paper, two cloister vaults with the same span but with different crown heights are stud- ied. The vault material is assumed to be elastic and a linear thin shell F.E.A. is used for analysis under gravity loads and seismic loads. Nodal reaction components and diaphragm shears are compared for the two cloister vaults, along with those obtained using the strip method of anal- ysis. A compression surface is determined for a selected nite element strip based on in-plane compression forces and out-of-plane bending moments. This is to indicate where tensile stresses will develop due to bending and hence where the vault will develop cracking and go into a limit state. The results include contour plots of membrane stresses, shear stresses, bending stresses and deformations in the masonry cloister vaults under gravity and lateral loads, as well as a representa- tion of the lateral load resistance mechanism of masonry cloister vaults when subjected to earthquakes.

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Rihal, S., Edmisten, J., & Chang, S. (2018). Seismic Behavior of Masonry Cloister Vaults. Academia XXII, 9(18), 42–56. https://doi.org/10.22201/fa.2007252Xp.2018.18.67942
Biografía del autor/a

Satwant Rihal

Professor Emeritus in architectural engineering at Cal Poly State Univer- sity in San Luis Obispo, California. He holds a B.C.E from University of Delhi, India; a M.S.C.E. in structural engineering from University of Min- nesota, Minneapolis; and a Ph.D. in Civil (Structural) Engineering from the University of New Mexico, Albuquerque, New Mexico. He is a retired registered professional civil engineer in state of California. He possess- es teaching, professional and research experience in earthquake haz- ards mitigation, earthquake resistant structural systems for buildings, seismic analysis, behavior and design of buildings and related elds. He is especially interested in global issues of earthquake safety of histor- ic and heritage buildings; international collaboration in documentation, assessment, restoration and preservation of cultural heritage struc- tures around the globe; and earthquake safety and hazard mitigation issues facing developing countries. He served as a Visiting Professor in civil engineering at Indian Institute of Technology, Gandhinagar, India during spring semester 2013-2014; a visiting scientist at the Structural Engineering Research Center, Madras, India during 1976-1977. Dr. Rihal serves as an expert member of ISCARSAH and CIPA, international sci- enti c committees of ICOMOS.

John Edmisten

Professor Emeritus in architectural Engineering at Cal Poly State Uni- versity in San Luis Obispo, California. He holds a B.S. in architectural engineering from Cal Poly State University, San Luis Obispo, California; a M.S. in structural engineering from University of California, Berkeley, Cal- ifornia; Further graduate study towards a Ph.D. in structural engineering from University of California, Berkeley, California. He is a retired regis- tered architect and a professional civil engineer in state of California. He possesses teaching, professional and research experience in design of earthquake resistant building structural systems. He is especially inter- ested in the structural analysis of historic structures located in seismic zones.

Sinhui Chang

Senior Engineer at Nabih Youssef & Associates with 4 years of experi- ence in the structural engineering profession. She has been serving in the Education Committee of the Structural Engineering Association of Southern California (seaosc) for past few years. She holds a B.S. and M.S. degrees in Architectural Engineering from Cal Poly State University, San Luis Obispo, California.