Date of Publication

2009

Document Type

Master's Thesis

Degree Name

Master of Science in Civil Engineering

Subject Categories

Civil Engineering | Structural Engineering

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Thesis Adviser

Andres Winston C. Oreta

Defense Panel Chair

Jonathan R. Dungca

Defense Panel Member

Bernardo A. Lejano
Renan Ma. T. Tanhueco

Abstract/Summary

Disasters are serious disruption of the normal functioning of a community. Disaster risk refers to the likelihood of this loss or harm; it is not only dictated by the strength of a hazard like earthquake, but also on how vulnerable the community is. More so, the density of the exposed population, their age structure, prevalent socio-economic conditions and disaster awareness also influence the assessment of disaster risk. Integrating this complex interplay is the underlying principle used in this study. The study developed a tool for quantifying the Seismic Risk Index (SRi) of a community at micro-scale. The SRi is taken as a function of various parameters including the severity of earthquake occurrence in the area, the population density, and several other factors including the structural vulnerability of the infrastructures, the effects of sloping grounds and proximity to bodies of water, as well as factors due to vulnerable population, poverty and disaster awareness programs. An actual application of the tool has been made to the case of Barangay Carmen, Cagayan de Oro City. The basic unit is at the level of the barangays political zone since this is the most fundamental unit in government where policy change may be enacted. To aid in the data presentation, especially to the local government unit (LGU) and other stakeholders, series of maps have been generated. With respect to the level of disaster risk against earthquakes, three zones namely Zones 2, 5 and 9 are considered to be at High Risk. These same zones are also the top three densely populated areas within the barangay. In addition, Zones 2 and 5 are swarmed with structures literally adjacent to the Cagayan de Oro River, while Zone 9s slopes are mushroomed with structures. Furthermore, the Structural Seismic Vulnerability Score (SSVs) of Zones 2 and 5 are beyond the cut-off score of 0.714, which suggests that many of the structures in these zones are potentially seismically hazardous. The SSVs of these zones are also significantly affected by the presence of many non-engineered structures built in these areas. To reduce the communities vulnerability, it is highly recommended that a committed and conscientious effort in implementing strict code compliance be done. In addition, the population development, especially at the poor communities in the area must be given careful attention and decisive action. To empower these economically marginalized members of society will give them a chance to build structurally sound infrastructures, and having the option to avoid slopes and flood-prone areas. In turn, the majority of the community will have a better share of the promise of truly beneficial sustainable development.

Abstract Format

html

Language

English

Format

Electronic

Accession Number

CDTG004505

Shelf Location

Archives, The Learning Commons, 12F Henry Sy Sr. Hall

Physical Description

127 leaves ; 28 cm.

Keywords

Seismic risk assessment; Earthquake hazard analysis--Cagayan De Oro City; Earthquake hazard analysis; Earthquake hazard assessment

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