Expansion of the Nishinomiya Built Environment Database

Masayuki Kohiyama, Norihiko Yamashita, Tadanobu Sato, Lu Hengjian, Norio Maki, Satoshi Tanaka, Haruo Hayashi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The Nishinomiya Built Environment Database, which can be used to analyze the disaster process of the 1995 Hanshin-Awaji Earthquake Disaster in Nishinomiya City, has been expanded with new data entries. The database contains the following very detailed datasets: (1) the urbanization area base map, (2) casualty data, (3) three sets of building damage data surveyed by the Nishinomiya City, the Architectural Institute of Japan and the City Planning Institute of Japan, and the Kobe University, (4) building property data based on the real estate tax roll, (5) photographs of the damaged buildings with the information on the place and orientation of the picture, and (6) the estimated distribution of the seismic ground motion. The seismic ground motion was simulated for the southern part of Nishinomiya City and two verification sites in Kobe City and Amagasaki City. In the simulation, the borehole data of public facilities were used to model the surface soils as one-dimensional layers, taking into consideration the fact that the spatial distribution of the sediment/basement interface forms a slope. The model of the fault rupture process simulated the characteristics of the seismic motion at basement level, and amplification effects of the surface layers were evaluated based on multiple reflection theory. The distribution of peak ground acceleration and peak ground velocity was estimated from acceleration response spectra at each borehole point. In addition, the relationship between simulated seismic ground motion and building damage was studied based on newly proposed band-passed spectrum intensity using the expanded database. This confirmed that detailed categorization is necessary in order to evaluate the fragility functions, especially for reinforced concrete structures. The database should provide fundamental information for identifying the relationship between the ground motions and the extent and pattern of building damage, or the pattern of the occurrence of casualties.

Original languageEnglish
Pages (from-to)501-522
Number of pages22
JournalNatural Hazards
Volume29
Issue number3
DOIs
Publication statusPublished - 2003 Jul 1
Externally publishedYes

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Keywords

  • 1995 Hyogo-ken Nanbu Earthquake
  • Building damage
  • Database
  • Geographic information system
  • Nishinomiya City
  • Response spectrum
  • Seismic ground motion
  • Simulation
  • Spectrum intensity

ASJC Scopus subject areas

  • Water Science and Technology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)

Cite this

Kohiyama, M., Yamashita, N., Sato, T., Hengjian, L., Maki, N., Tanaka, S., & Hayashi, H. (2003). Expansion of the Nishinomiya Built Environment Database. Natural Hazards, 29(3), 501-522. https://doi.org/10.1023/A:1024793312735