A Simplified Method for Preliminary Seismic Vulnerability Assessment of Existing Building in Kundasang, Sabah, Malaysia

Abstract

A simplified method for preliminary seismic vulnerability assessment of existing building in particular area of Kundasang, Sabah Malaysia region is proposed. The surveys are mainly focused on building inventory such as identifying the building occupancy, building type and the storey number of buildings for study area. Rapid Visual Screening (RVS) can be effectively used to evaluate the vulnerability of large number of buildings for study area with less computational effort. The data collection form of the Federal Emergency Management Agency (FEMA 154) for RVS was gathered for this purpose. The objective of this study is to assess the vulnerable building that tendency to be further detailed analysis by the calculation of score in RVS method. Pre-assessment towards seismic vulnerability of every individual building in particular area has been assessed and the information of buildings in study region consist residential, industrial, government, school building occupancies were recorded and spatially analyzed using Geographical Information System (GIS) framework. Buildings in Kundasang are considered as less further evaluation (34%) which need have detailed analysis by modeling the structure, while another 66% considered as safe building based on rapid visual final score.

GIS spatial modelling for seismic risk assessment based on exposure, resilience, and capacity indicators to seismic hazard: a case study of Pahang, Malaysia

“…In recent years, however, numerous studies have been performed by local authorities and researchers towards establishing decreased seismic risks. Additional emphasis can be observed on the vulnerability assessment carried out in Sabah, which is located in the eastern part of the country (Ghafar et al 2015;Tongkul 2015;Indan et al 2018;Raduan et al 2018;Roslee et al 2018), whereas Pahang-based works are primarily seismic hazard-based in nature (Shuib 2009;Nabilah and Balendra 2012;Marto et al 2013;Lam et al 2016;Weijie Loi et al 2018).…”

“…Therefore, addressing the problem of insufficient data for building vulnerability assessment has resulted in the use of Rapid Visual Screening (RVS) method to develop a building inventory. It is employed to map the physical vulnerability of the Kundasang area in Sabah (Ghafar et al 2015). Accordingly, Raduan et al (2018) have designed an earthquake threat map for the state by implementing the GIS application for the purpose of geographic location and attribute information classification and display in line with the threat level categories.…”

Development of an Exposure Vulnerability Index Map Using GIS Modeling for Preliminary Seismic Risk Assessment in Sabah, Malaysia

“…The seismic risk assessment refers to the seismic hazard, vulnerability and response capacity assessment of an area against earthquake threats depending on the location, magnitude and intensity of an earthquake when it occurs. The impediment for developing countries such as Malaysia when implementing seismic vulnerability assessments is the lack of comprehensive data [13][14][15][16]. Most of the data required in assessing population and property vulnerability during disasters is the crucial statistical information from the census.…”

“…Moreover, there would be constraining issues relating to access to the data given its proprietary nature, confidentiality, reliability, consistency and lack of data transparency [17]. However, in recent years, various research has been conducted by local authorities and researchers to decrease seismic risks focusing on vulnerability assessment in Malaysia [12,13,[18][19][20][21].…”

Suitability of Dbela Methods as Seismic Vulnerability Assessment for Buildings in Kota Kinabalu, Sabah

“…Sabah's geological data has much on younger Tertiary sedimentary rocks such as sandstone and shale dominant areas. For example, at the Trusmadi Formation, Ranau has the major cut-slopes were made into the hills with black, carbonaceous shale [1][2][3]. Other than that, it is also believed that the black shale produced very weak materials on weathering which it cannot sustain even gentle slopes [4].…”