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

Authors

DOI:

https://doi.org/10.25079/ukhjse.v6n1y2022.pp84-93

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

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Research Articles

How to Cite

Performance of Unreinforced Hollow-Block Masonry Houses During 23 August 2017 Ranya Earthquake. (2022). UKH Journal of Science and Engineering, 6(1), 84-93. https://doi.org/10.25079/ukhjse.v6n1y2022.pp84-93