Abstract
Many industrial sites around the world present out of service masonry chimneys frequently in a poor state of conservation. In most cases the industrial sites they belonged to have been surrounded by or transformed in new industrial, commercial or even residential buildings thus increasing their seismic risk. Several studies have dealt with the seismic assessment of masonry chimneys since the early 1990s analyzing the response of these structures subjected to horizontal ground motion with different constitutive laws for the masonry in tension and in compression. In this paper the attention is focused on the role that the vertical component of the ground motion plays on the overall stability of the masonry chimneys. Since the vertical self weight of the masonry provides a major stabilizing effect, its reduction due to downward seismic acceleration that acts almost simultaneously to the horizontal component should not be neglected in the seismic assessment. Analytical investigations on a simplified model and numerical analysis on a FE model of a real masonry chimney allowed to evaluate the importance of the vertical component of the ground motion.
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Acknowledgments
The Authors are grateful to Dr. Luca Leonardi and Dr. Federico Angelini Paroli of the consulting firm Agathos Engineering (Perugia, Italy) for their valuable support in organizing the experimental campaign.
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Breccolotti, M., Materazzi, A.L. The role of the vertical acceleration component in the seismic response of masonry chimneys. Mater Struct 49, 29–44 (2016). https://doi.org/10.1617/s11527-014-0472-7
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DOI: https://doi.org/10.1617/s11527-014-0472-7