An assessment of physical aspects for seismic response capacity in Dhaka, Bangladesh

Omar, Anisuzzaman Ibne; Matsuyuki, Mihoko; Das, Sangita; Ubaura, Michio

doi:10.1016/j.pdisas.2021.100175

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…The last row of Table 4 shows that the construction quality of all high-rise buildings, including those with 6-10 stories, have high-level nonconformity. This constitutes a serious threat to the occupants, investors/developers, and the construction quality control authority as Bangladesh is an earthquake-and other natural disasters-prone country, which sharply increases vulnerability to structural collapse (Apu and Das 2020;Omar et al 2021). However, although the construction quality of private low-rise academic and high-rise commercial buildings is generally quite good (nonconformity scores below 0.30), such factors as premature concrete stressing (CQ6), consultant/designer not invited for supervision (MC3), and insufficient periodic laboratory testing of materials (MC6) have a very low score (less than 0.10), which severely reduces their average nonconformity score.…”

Section: Nonconformities With Project Variablesmentioning

confidence: 99%

Nonconformity Assessment in Building Construction Projects: A Fuzzy Group Decision-Making Approach

Islam

Shihab

et al. 2023

J. Perform. Constr. Facil.

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Construction nonconformity assessment of buildings is critical to ensure the anticipated quality and living safety for their future occupants. Previous studies have paid less attention to identifying and analyzing building construction nonconformities (BCNs) in the design and construction (D&C) phases considering expert judgments, which are critiqued for human bias, uncertainty, and imprecision. In BCN assessment, previous studies also did not consider the specific time frame to detect construction nonconformities. This study aims to prioritize nonconformities in the D&C phases, addressing the limitations of expert judgment by applying the Fuzzy Group Decision-Making Approach (FGDMA). The FGDMA computes the This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers.

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Section: Nonconformities With Project Variablesmentioning

confidence: 99%

Nonconformity Assessment in Building Construction Projects: A Fuzzy Group Decision-Making Approach

Islam

Shihab

et al. 2023

J. Perform. Constr. Facil.

View full text Add to dashboard Cite

show abstract

“…Sun et al [22] investigated a new approach that tackled seismic resilience of road networks effected by earthquake hazards, by leveraging post-shock rapid responses as the key to minimize the functionality losses of the network, especially in the immediate aftermath of earthquakes. Omar et al [23] analyzed the physical seismic emergency response capacity in Dhaka, Bangladesh by developing five indicators and one of them is rescue and evacuation accessibility where the road network within the city is studied during seismic hazard.…”

Section: Seismic Risk Assessment Frameworkmentioning

confidence: 99%

Evaluating the Interdependencies of Infrastructure Critical Systems during Earthquake Event: A Case Study for Padang City

et al. 2022

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Our modern society is becoming increasingly reliant on transportation networks, as well as the interdependent infrastructures and technologies that interact with them. The increasing complexity and interconnectedness of infrastructure networks make them susceptible to impact not only directly from external shocks but also indirectly from the failure of dependent infrastructures. This research study was conducted in Padang city, one of the most disaster-prone areas in Indonesia. Based on the literature review, it is no doubt that research study on seismic risk assessment is insufficient and outdated. In fact, a study about the interdependency between Critical Infrastructures (CIs) is yet to be done in this region. In this study, there are two approaches used for data gathering which is by surveying existing CIs using Google Earth and by an online questionnaire survey via Google Form. Based on the qualitative survey, a functionality rating method is done to obtain the level of outage/loss functionality which is an indicator for the damage occurred to the structure and infrastructure. Following that, a seismic risk analysis was conducted to assess the interdependency between investigated CIs and facilities. Respondents’ judgement from the questionnaire were used to identify the base criticality of each critical infrastructure. Based on the qualitative survey, the level of loss in functionality for the substation and the telecommunication tower is rated as “High”, but the loss in functionality for the water supply system is rated as “Moderate”. Moreover, the findings used from the respondents’ judgements were used to establish the initial level of criticality for each vital infrastructure. According to the findings, hospitals, power substations, and communication towers all have a criticality level of “5-Vital”, while police stations and fire stations both have a “3-medium” criticality rating. Eventually, the results of this assessment of interdependence are displayed in a criticality map, which shows how the interdependency relationship affects the initial criticality of a certain upstream infrastructure. Understanding the potential consequences of infrastructure failure, especially in regard to dependent infrastructures, can help emergency response teams formulate more targeted strategies for managing risks. As a consequence of this, the resilience of the wider community is improved, which contributes toward the implementation of Sustainable Development Goal (SDG) 11: Sustainable cities and communities particularly in reducing disasters and people in vulnerable situation.

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Regional Vulnerability Assessment Based on Building Damage Estimation duet to a Huge Earthquake in Yangon

Kitazawa

Murao

Ohno

2021

Toshi keikaku rombunshu

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An assessment of physical aspects for seismic response capacity in Dhaka, Bangladesh

Cited by 3 publications

References 15 publications

Nonconformity Assessment in Building Construction Projects: A Fuzzy Group Decision-Making Approach

Nonconformity Assessment in Building Construction Projects: A Fuzzy Group Decision-Making Approach

Evaluating the Interdependencies of Infrastructure Critical Systems during Earthquake Event: A Case Study for Padang City

Regional Vulnerability Assessment Based on Building Damage Estimation duet to a Huge Earthquake in Yangon

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