2017 Pohang Earthquake - Reinforced Concrete Building Damage Survey

By Chungwook Sim1, Lucas Laughery2, T. C. Chiou3, Pu-wen Weng3

1. University of Nebraska-Lincoln 2. Nagoya Institute of Technology 3. National Center for Research on Earthquake Engineering (NCREE)

Category

Databases

Published on

Abstract

This dataset was last updated on April 8, 2018.

The earthquake in Korea occurred on November 15, 2017 with a moment magnitude of 5.4.  Heunghae and Pohang were the two major cities that were damaged during the event. No person were killed during the event and 82 were injured. However, approximately thousand people lost their homes due to severe building damage and the cost of structural damage in public and private infrastructure is reported to be approximately 100 million dollars.  

       

Following the November 15, 2017 Pohang earthquake, a team of researchers supported by the American Concrete Institute traveled to the south east costal cities in Korean peninsula to document the properties of reinforced concrete buildings affected by the earthquake.  The reconnaissance group was consisted of Chungwook Sim (ACI 133 member) from University of Nebraska-Lincoln, Lucas Laughery (ACI 133 member) from Nagoya Institute of Technology, and T.C. Chiou and Pu-wen Weng from the National Center for Research in Earthquake Engineering (NCREE) in Taiwan.  

In Korea, these individuals were supported by local structural engineers, faculty, and students from Chang Minwoo Structural Consultants, Seoul National University, Ulsan National Institute of Science and Technology, Kyungpook National University, Daegu University, and Gyeongnam National University of Science and Technology. The reconnaissance group worked in 3 teams (A, B, and C) with 3 to 4 people in each team.  

 

     

 

The following people are gratefully acknowledged for their help with data collection in a severely cold winter:  A Seo Cho (graduate student of Prof. Thomas Kang at SNU), Sang Mok Lee (graduate student of Prof. Youngjoo Lee at UNIST), Junseop Lee and Gangbak Park (graduate students of Prof. Kyeongjae Shin at KNU), Hoyeol Choi and Mingyun Ha (students from Daegu University), Prof. Yungon Kim (Daegu University), Jichul Jung, Yuchan Hong, Jeongsik Jung, and Seokhyeon Jeon (graduate students of Prof. Jinhee Ahn at GNUST), and Dr. Kyeong Tae Kim (Chang Minwoo Structural Consultants).Without the invaluable support provided by everyone, the database created here would not have been possible.  

The survey was performed from December 8 through December 13, 2017 in the cities of Pohang and Heunghae, which are located in the south east region of Korean peninsula.  Approximately 75 low-rise buildings were surveyed.  Data including photographs, structural and/or architectural drawings, dimensions, and GPS coordinates were collected for the buildings that were inspected.

  

  

This database is presented as a spreadsheet with each row containing the following information for a building:

  1. Title: Title of the project, group of experiments, simulations or surveys
  2. Experiment or Case ID: ID assigned by the source to the sample, specimen, case, survey, site, experiment or simulation
  3. Keywords: Words describing the dataset
  4. Report(s): Related documentation
  5. Parameters: Variables and parameters chosen by the researcher, compiler, professional or scientific organization to describe the data
  6. Data: Data files generated through project. Tabular text format is preferred
  7. Photos, Videos, etc.: Media files including photos, videos, audio generated through project
  8. Drawings/Diagrams: Drawing and diagrams helpful to interpret the data
  9. Source: Names of the people who generated the data
  10. Experiment Start Date: Date when experiment started
  11. Experiment End Date: Date when experiment ended
  12. Latitude: Latitude of the location where data was collected, if applicable
  13. Longitude: Longitude of the location where data was collected, if applicable
  14. Compiled By: Names of the people who compiled the data
  15. Compiled On: Date when the dataset was compiled

    In addition, the following information is presented in the parameter column:
  16. Title
  17. Experiment or Case ID
  18. Latitude
  19. Longitude
  20. Priority Index (Hassan Index, %):
      PI = WI + CI (where, WI = Wall Index, CI = Column Index)
  21. No. of Floors
  22. Total Floor Area (m2)
  23. Column Area (m2)
  24. Concrete Wall Area (NS) (m2)
  25. Concrete Wall Area (EW) (m2)
  26. Masonry Wall Area (NS) (m2)
  27. Masonry Wall Area (EW) (m2)
  28. Structural Damage - Three classes of damage
    a) Light: Hairline (crack width not exceeding approximate 0.13 mm) inclined and flexural cracks were observed in structural elements.
    b) Moderate: Wider cracks or spalling of concrete was observed.
    c) Severe: At least one element had a structural failure or at least one floor slab or part of it lost its elevation.
  29. Masonry Wall Damage - Damage to infill walls classified as follows:
    a) Light: Hairline cracks occurred.
    b) Moderate: Wider cracks appeared or large pieces of plaster flaked off.
    c) Severe: The element collapsed or cracks wide enough to see through the wall appeared.
  30. Captive Columns: Are there captive columns?
  31. Column Index (%)
       CI = 0.5 Acol/Af *100%
      where,
      Acol: the sum of cross-sectional areas of all columns at ground floor.
      Af: total floor area above ground level
  32. Wall Index (NS) (%)
      WI = (Acw + 0.1Amw)/Af *100%
      where,
      Acw: the sum of cross-sectional areas of reinforced concrete walls in north-south direction at ground floor
      Amw: the sum of cross-sectional areas of infill masonry walls in north-south direction at ground floor
  33. Wall Index (EW) (%)
      WI = (Acw + 0.1Amw)/Af *100%
      where,
      Acw: the sum of cross-sectional areas of reinforced concrete walls in east-west direction at ground floor
      Amw: the sum of cross-sectional areas of infill masonry walls in east-west direction at ground floor
  34. Min WI (%)
      Minimum Wall Index
  35. Report(s)
  36. Data
  37. Photos, Videos, etc.
  38. Drawings/Diagrams

Cite this work

Researchers should cite this work as follows:

  • Chungwook Sim; Lucas Laughery; T. C. Chiou; Pu-wen Weng (2018), "2017 Pohang Earthquake - Reinforced Concrete Building Damage Survey," https://datacenterhub.org/resources/14728.

    BibTex | EndNote

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