Traditional stone masonry buildings were often the result of non-engineered processes, relying instead on traditional construction techniques developed by craftsmen and passed down through generations. Masonry is a composite material made of natural or manmade units and, when characterized by high quality workmanship, masonry units are arranged in staggered horizontal layers to avoid continuous vertical joints, with the mortar used to bind these units and promote a monolithic behavior. Furthermore, masonry buildings can exhibit a wide array of features in terms of bond patterns and material variety used in masonry panels assemblage. These characteristics complicate the process of systematically classifying masonry types. Indeed, stone masonry buildings can display inadequate performance in withstanding seismic load due to poor material properties (e.g. mortar quality) and construction details (e.g. round unshaped stones, absence of connection between walls leaves, presence of voids). The awareness of the scientific community towards the stereotomy applied in historical constructions has progressively grown over time. There have been studies evaluating how the presence or absence of through-stones, as well as spatial arrangement of stone-units influences overall performance of masonry walls under in-plane and out-of-plane loading. This work intends to provide an insight into the influence of masonry typology and masonry bond arrangements of stone masonry in the out-of-plane resistance, cracks and collapse mechanisms.

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Out-of-Plane Behavior of Stone Masonry Walls: Influence of Masonry Bond Irregularity

  • Graça Vasconcelos,
  • Antonio Murano,
  • Javier Ortega,
  • Hugo Rodrigues

摘要

Traditional stone masonry buildings were often the result of non-engineered processes, relying instead on traditional construction techniques developed by craftsmen and passed down through generations. Masonry is a composite material made of natural or manmade units and, when characterized by high quality workmanship, masonry units are arranged in staggered horizontal layers to avoid continuous vertical joints, with the mortar used to bind these units and promote a monolithic behavior. Furthermore, masonry buildings can exhibit a wide array of features in terms of bond patterns and material variety used in masonry panels assemblage. These characteristics complicate the process of systematically classifying masonry types. Indeed, stone masonry buildings can display inadequate performance in withstanding seismic load due to poor material properties (e.g. mortar quality) and construction details (e.g. round unshaped stones, absence of connection between walls leaves, presence of voids). The awareness of the scientific community towards the stereotomy applied in historical constructions has progressively grown over time. There have been studies evaluating how the presence or absence of through-stones, as well as spatial arrangement of stone-units influences overall performance of masonry walls under in-plane and out-of-plane loading. This work intends to provide an insight into the influence of masonry typology and masonry bond arrangements of stone masonry in the out-of-plane resistance, cracks and collapse mechanisms.