The Seismic Safety Assessment of Historical Houses of Tabriz Based on Italian DPCM Guidelines; Case Study: Ali Monsieur House

Document Type : Original Article

Authors

1 M.A. in Strengthening of Historical Constructions, Faculty of Architecture and Urban Development, Islamic Art University of Tabriz, Iran.

2 Associate Professor of Architecture, Faculty of Architecture and Urban Development, Islamic Art University of Tabriz, Iran (Corresponding Author).

10.22034/aaud.2023.344334.2676

Abstract

Each year, many historical buildings are threatened by the risk of damages due to natural disasters, including earthquakes. The key step before retrofitting and restoring historical buildings is to provide a seismic safety assessment of these structures to identify their weaknesses. Italy is one of the pioneering countries that has released a special guideline under the title of “Italian guidelines for evaluation and mitigation of seismic risk to cultural heritage(DPCM)” in order to assess historical buildings. This guideline includes three levels of assessment and is also used for three classes of various buildings. Manual computation results of this guideline at the first level can demonstrate the general status of the building in the shortest time possible for restorative activities. In Iran, no such a guideline is available for historical buildings. Therefore, this study called for developing a guideline for assessing historical buildings in Iran, while examining the safety status of the historical Ali monsieur House of Tabriz City under the Ultimate Limit State (SLU) and Damage Limit State (SLD) based on manual and numerical computations proposed by the Italian DPCM guideline. Pushover analysis (numerical modeling) was carried out based on equivalent frame model three-dimensional modeling in 3MURI.13 software. Findings of the two levels of assessment were used to compare the obtained results. In sum, data from assessing both levels of Ali monsieur House revealed that this building was not safe under the ultimate limit state, but demonstrated good safety under the damage limit state. Notably, the manual computations offered in the Italian guideline served more conservatively because they provided safety index and shear strength values of the buildings less than those obtained from numerical computations. However, it is considered a useful and applied method prior to carrying out restorative measures.

Keywords

References

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Armanshahr Architecture & Urban Development
Volume 16, Issue 44 - Serial Number 44
December 2023
Pages 211-222

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History

  • Receive Date: 28 May 2022
  • Revise Date: 10 September 2022
  • Accept Date: 12 September 2022

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