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Seismic vulnerability of the masonry historical structures

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Seismic vulnerability of the masonry historical structures

  1. 1. Seismic vulnerability of the masonry historical structures Ivo Caliò & Giuseppe Occhipinti
  2. 2. A WORLD HERITAGE BUILDING THAT HAS TO BE PRESERVED CONSIDERATION ON THE SEISMIC VULNERABILITY OF THE SAINT GEORGE CATHEDRAL’S MAIN DOME IN RAGUSA IBLA
  3. 3. Rosario Gagliardi (Siracusa, 1698 – Noto, 1762) San Giuseppe - Ibla San Giorgio - Ibla San Giorgio - Modica
  4. 4. Courtesy of the Saint George’s Museum – Ragusa Ibla Original Gagliardi’s drawing of the Saint George Cathedral’s plan 1744– Ragusa Ibla
  5. 5. Courtesy of the Saint George’s Museum – Ragusa Ibla Original Gagliardi’s drawing of the Saint George Cathedral 1744– Ragusa Ibla 53 years after the great earthquake
  6. 6. Courtesy of the Saint George’s Museum – Ragusa Ibla Original Gagliardi’s drawing of the Saint George Cathedral 1744– Ragusa Ibla
  7. 7. Courtesy of the Saint George’s Museum – Ragusa Ibla Original Gagliardi’s drawing of the Saint George Cathedral’s structures 1744– Ragusa Ibla
  8. 8. 1775 82 years after the great earthquake
  9. 9. 1775 0 1820 Arch. Rosario Gagliardi 1693 +82 years Arch. Sebastiano Ittar (Catania, 1768 – Catania, 1847) +127 years Maestro (master builder) Carmelo Cutraro
  10. 10. Maestro Cutraro took his inspiration from the Pantheon‘s geometry
  11. 11. Saint George in Modica
  12. 12. Courtesy of the Saint George’s Museum – Ragusa Ibla
  13. 13. Courtesy of the Saint George’s Museum – Ragusa Ibla Original Gagliardi’s drawing of the Saint George Cathedral’s plan 1744– Ragusa Ibla
  14. 14. Under stati loads Carmelo Arezzo di Trifiletti found out the sz around of 1,4 Mpa = 14 kg/cm2 at the lower side of the columns

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