Performance of Unreinforced Hollow-Block Masonry Houses During 23 August 2017 Ranya Earthquake

  • Hawkar A. Haji Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq http://orcid.org/0000-0002-2615-8020
  • Najmadeen M. Saeed Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq; Department of Civil Engineering, Tishk International University, Erbil, Kurdistan Region, Iraq http://orcid.org/0000-0001-7074-0256
  • Brwa H. Salihi Department of Civil Engineering, Faculty of Engineering, Koya University, Koya, Erbil, Kurdistan Region, Iraq http://orcid.org/0000-0002-5346-1682
  • Araz A. Hamza Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq http://orcid.org/0000-0002-3014-5951
Keywords: Unreinforced Masonry Houses, Earthquake Damages, Hollow-Concrete Block, Seismic Performance, Ranya Earthquake.

Abstract

The earthquake in Ranya City took place at local time 16:42 (GMT+3) on August 23rd 2017, with a magnitude of 5.3 Richter scale in the Kurdistan Region of Iraq. The earthquake with an approximate duration of 5 seconds occurred near Lake Dokan with a depth of 10 km below the surface of the earth. It caused a lot of damages to the structures in the region. The most vulnerable buildings were unreinforced hollow-block masonry houses which are composed of hollow-concrete blocks. This paper discusses the performance of unreinforced masonry houses of Ranya City with illustrative photos taken during on-site investigation for a number of damaged houses subjected to seismic actions. The main structural deficiencies that caused the wall cracks were highlighted, such as; very low tensile and shear resistance of the walls, large openings and their positioning, weak mortar and binding between the masonry units, existing weak joints between the crossing walls.

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Author Biographies

Hawkar A. Haji, Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq

Hawkar Haji: works at the Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq.

Najmadeen M. Saeed, Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq; Department of Civil Engineering, Tishk International University, Erbil, Kurdistan Region, Iraq

Asst. Prof. Dr. Najmadeen Mohammed Saeed

PhD Civil Engineering\ Structures School of Engineering United Kingdom 2015-04-22 Master Building Construction Engineering\ Structures College of Engineering/ Building Construction Department Kurdistan Region/ Iraq 2010-04-20 Bachelor Building Construction Engineering College of Engineering/ Building Construction Department Kurdistan Region/ Iraq 2002-07-04
Brwa H. Salihi, Department of Civil Engineering, Faculty of Engineering, Koya University, Koya, Erbil, Kurdistan Region, Iraq

Brwa Salihi: works at the Department of Civil Engineering, Faculty of Engineering, Koya University, Koya, Erbil, Kurdistan Region, Iraq.

Araz A. Hamza, Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq

Araz Hamza: works at the Department of Civil Engineering, University of Raparin, Ranya, Sulaymaniyah, Kurdistan Region, Iraq.

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Published
2022-06-30
How to Cite
Haji, H., Saeed, N., Salihi, B., & Hamza, A. (2022, June 30). Performance of Unreinforced Hollow-Block Masonry Houses During 23 August 2017 Ranya Earthquake. UKH Journal of Science and Engineering, 6(1), 84-93. https://doi.org/https://doi.org/10.25079/ukhjse.v6n1y2022.pp84-93
Section
Research Articles
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