scholarly journals Assessment of Seismic Building Vulnerability Using Rapid Visual Screening Method through Web-Based Application for Malaysia

Buildings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 485
Author(s):  
Moustafa Moufid Kassem ◽  
Salmia Beddu ◽  
Jun Hao Ooi ◽  
Chee Ghuan Tan ◽  
Ahmad Mohamad El-Maissi ◽  
...  
Keyword(s):  
Seismic Vulnerability ◽  
Screening Method ◽  
Google Earth ◽  
Mitigation Strategies ◽  
Performance Score ◽  
Building Vulnerability ◽  
Damage State ◽  
Rapid Visual Screening ◽  
Visual Screening ◽  
George Town

Rapid visual screening is a quick and simple approach often used by researchers to estimate the seismic vulnerability of buildings in an area. In this study, preliminary seismic vulnerability assessment of 500 buildings situated at Northern and Eastern George Town, Malaysia, was carried out by utilizing a modified FEMA-154 (2002) method that suits Malaysian conditions. Data were collected from online sources via Google Maps and Google Earth instead of traditional surveying data collection through street screening. The seismic assessment analysis of this study was based on the RVS performance score and the damage state classification for each building typology. This approach generates, for each building, a final performance score based on governing parameters such as structural resisting system, height, structural irregularities, building age, and soil type. The findings revealed the immediate need for effective seismic mitigation strategies, as 90% of the studied buildings required a further detailed analyses to pinpoint their exact seismic vulnerability performance. Most of the surveyed buildings were predicted to experience moderate-to-substantial damage, with 220 out of 500 being classed as damage state 2 (D2) and damage state 3 (D3). A GIS map, “RVS Malaysian Form-George Town Area”, was generated via ArcGIS and shared with the public to provide vital information for further research.

scholarly journals Seismic vulnerability of traditional masonry building a case study of Byasi, Bhaktapur

2017 ◽  
Vol 4 ◽  
pp. 24-30
Author(s):  
Shyam Sundar Basukala ◽  
Prem Nath Maskey
Keyword(s):  
Seismic Vulnerability ◽  
Linear Time ◽  
Fragility Curves ◽  
Time History ◽  
Masonry Building ◽  
Masonry Buildings ◽  
Masonry Structures ◽  
Rapid Visual Screening ◽  
Visual Screening

Historic buildings of Nepal are mainly constructed from masonry structure. Since masonry structures are weak in tension which leads to the failure of structure. So, to avoid possible damage in environment lives and property it is urgent to conduct vulnerability assessments. Seismic vulnerability of historic masonry buildings constructed in Bhaktapur at Byasi area is carried out for the case study. Five load bearing masonry buildings were selected out of 147 buildings considering opening percentage, storey and type of floor for modeling in SAP 2000 V10 Various methods of rapid visual screening (FEMA 154, EMS 98) are used to determine the vulnerability of the selected building. The Selected Building response is carried out by linear time history analysis. The seismic vulnerability of masonry structures is determined in terms of fragility curves which represent the probability of failure or damage due to various levels of strong ground motions for different damage state slight, moderate, extensive and collapse. From the result of Rapid Visual Screening (RVS) and Fragility curves of the buildings it is found that whole, buildings are found vulnerable from future earthquake.

Applicability of the PTVA-4 model to evaluate the structural vulnerability of hospitals in Sri Lanka against tsunami

2020 ◽  
Vol 11 (5) ◽  
pp. 581-596 ◽  
Author(s):  
Sathiyanathan Harisuthan ◽  
Hashan Hasalanka ◽  
Devmini Kularatne ◽  
Chandana Siriwardana
Keyword(s):  
Sri Lanka ◽  
Case Studies ◽  
Screening Method ◽  
Sri Lankan ◽  
Structural Vulnerability ◽  
Content Type ◽  
Rapid Visual Screening ◽  
Coastal Belt ◽  
Visual Screening ◽  
Tsunami Vulnerability Assessment

Purpose This paper aims to identify the specific parameters in developing a framework to assess the structural vulnerability of hospital buildings in Sri Lanka against tsunami. Along with that, the adaptability and suitability of the existing global frameworks in the Sri Lankan context are to be assessed. Design/methodology/approach In this study, Papathoma tsunami vulnerability assessment (PTVA)-4 model was used as the base in developing the abovementioned framework. Its adaptability and suitability in assessing hospital buildings in the country were considered under the case studies conducted in six selected hospitals in the Southern coastal belt of Sri Lanka. Under these case studies, data collection was done using the Rapid Visual Screening method where assessments were carried out through visual observations. The collected data were analyzed according to the aforementioned model for its suitability in evaluating the structural vulnerability of hospitals in Sri Lanka, against tsunami hazard. Findings From these case studies, it was identified that the use of the PTVA-4 model alone was insufficient to assess the structural vulnerability of the hospital buildings against the tsunami. Therefore, the model must be further improved with more relevant assessing attributes related to hospitals, suitable for the Sri Lankan context. Originality/value This paper identifies the specific structural assessment parameters required in assessing hospitals in the coastal belt of Sri Lanka, considering tsunami as the main hazard condition.

Seismic vulnerability evaluation of educational buildings of Mymensingh city, Bangladesh using rapid visual screening and index based approach

2020 ◽  
Vol 11 (3) ◽  
pp. 379-402
Author(s):  
Md. Shaharier Alam ◽  
Shamim Mahabubul Haque
Keyword(s):  
Seismic Vulnerability ◽  
Hazard Mitigation ◽  
Secondary Source ◽  
Equal Weight ◽  
Content Type ◽  
Rapid Visual Screening ◽  
Vulnerability Evaluation ◽  
Educational Buildings ◽  
Visual Screening ◽  
The City

Purpose Seismic vulnerability evaluation of various public structures, especially school buildings, is very crucial for designing hazard mitigation initiatives in seismic prone areas. The city of Mymensingh is at great risk of earthquake because of its geographical location, geological structure and proximity to active faults. The city is famous for its ancient and renowned educational institutes that need to be evaluated for understanding the seismic performance of the building during an earthquake. This study aims to evaluate the seismic vulnerability of educational buildings of Mymensingh city using rapid visual screening (RVS) and index based approach. Design/methodology/approach RVS procedure includes field survey and secondary source assessment for evaluating structural vulnerability attributes. Analytical hierarchy process is applied to develop an index focusing on systematic attributes of vulnerability based on expert opinions. Then, a composite vulnerability map is developed combining both structural and systematic vulnerability score providing an equal weight. Findings This study evaluates the seismic vulnerability of 458 educational buildings of Mymensingh city and the result shows that 23.14% educational building has high, 46.29% has moderate and 26.86% has moderately low and only 3.71% buildings has the low seismic vulnerability. This study expected to be helpful in resource targeting and prioritizing seismic hazard mitigation activities for education buildings of Mymensingh city. Originality/value This study endeavors to present a comprehensive vulnerability assessment method by integrating RVS and index based approach that incorporates both structural and systematic dimensions of vulnerability. The result is expected to be helpful in the formulation of disaster prevention policy for vulnerable educational buildings and development of the earthquake-resistant building codes for the new building construction in Mymensingh city.

A Proposed Rapid Visual Screening Procedure for Developing Countries

2018 ◽  
Vol 9 (2) ◽  
pp. 38-45 ◽  
Author(s):  
Ningthoujam Monika Chanu ◽  
Radhikesh Prasad Nanda
Keyword(s):  
Quality Control ◽  
Building Vulnerability ◽  
Soft Storey ◽  
Rapid Visual Screening ◽  
The Past ◽  
Score Sheet ◽  
Proper Design ◽  
Visual Screening ◽  
Vulnerability Score ◽  
Design Construction

Many earthquakes in the past had shown that major damage to structures took place in the absence of proper design, construction, and quality control. Based on the extent of damages caused by earlier earthquakes and the building vulnerability parameters that has caused the damages, a statistical analysis was carried out to develop a vulnerability score sheet. In this score sheet, a vulnerability score is computed considering building attributes such as soft storey, substantial overhang, re-entrant corners, the age of buildings, apparent material and construction quality, eccentric staircase location with respect to building plan, maintenance, soil type and a number of storeys. This score sheet will be a very helpful technique for assessing huge building stocks.

Development of an index assignment procedure compatible with the regional seismicity in the province of Quebec for the rapid visual screening of existing buildings

2008 ◽  
Vol 35 (9) ◽  
pp. 925-937 ◽  
Author(s):  
Amin Karbassi ◽  
Marie-José Nollet
Keyword(s):  
Seismic Vulnerability ◽  
Seismic Analysis ◽  
Nonlinear Static Analysis ◽  
Seismic Evaluation ◽  
Regional Seismicity ◽  
Rapid Visual Screening ◽  
Assignment Method ◽  
Nonlinear Static ◽  
Visual Screening ◽  
Index Assignment

In the context of the seismic vulnerability evaluation of buildings, the score assignment method can be used as the first step of a multiphase procedure aimed at identifying hazardous buildings that must then be analysed in greater detail. Because the existing Canadian rapid visual screening procedure has not been updated since 1992, a new procedure is proposed based on a set of vulnerability indices for different cities in the province of Quebec. A seismicity level (low, moderate, or high) is attributed to each city using the spectral acceleration response values included in the 2005 edition of National building code of Canada (NBCC) and the criteria proposed in FEMA 310 Handbook for the seismic evaluation of buildings - a prestandard. The structural vulnerability indices (SVIs) are calculated using the recently improved nonlinear static analysis procedure in FEMA 440, Improvement of nonlinear static seismic analysis procedures for each seismicity level. The NBCC 2005 reference soil class C is considered in the calculation of the SVIs, and index modifiers for the building height, irregularities, and design and construction year. The application of these indices to the estimation of the probable damage distribution in building inventories is discussed at the end.

scholarly journals A Quantitative Approach to Assess Seismic Vulnerability of Touristic Accommodations: Case Study in Montreal, Canada

GeoHazards ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 137-152
Author(s):  
Thomas Candela ◽  
Philippe Rosset ◽  
Luc Chouinard
Keyword(s):  
Seismic Vulnerability ◽  
Significant Proportion ◽  
Vulnerability Index ◽  
Soil Conditions ◽  
Building Vulnerability ◽  
Ground Shaking ◽  
Rapid Visual Screening ◽  
Local Soil ◽  
Four Levels

In many places of the world, the interruption of touristic activities in the aftermath of a catastrophic earthquake is often neglected in the evaluation of seismic risks; however, these activities can account for a significant proportion of short-term and long-term economic impacts for these regions. In the last decade, several rapid visual screening techniques have been developed to define the typology of buildings and to estimate their seismic vulnerability and potential for damage. We adapted the existing screening procedures that have been developed for generic buildings to specific circumstances that are most common for tourist accommodations. The proposed approach considered six criteria related to structural and nonstructural elements of buildings, as well as local soil conditions. A score was assigned to each criterion as a function of the capacity of the elements to resist ground shaking. A vulnerability index in four levels of building vulnerability was developed combining the scores of the six criteria. The approach was tested in a pilot area of Montreal to a set of 70 typical buildings grouped in four categories based on their accommodation capacity. In Montreal, tourism is an important source of income for the city where 351,000 room-nights were booked with total stay expenditures of CAD 4.9 billion in 2019. The results indicated potential significant disruptions in activities related to tourism; 46% of the buildings investigated have a high to very high vulnerability index. Among them, 4/5 are located in the old city and 1/5 in the downtown area of the pilot zone.

scholarly journals Risk Assessment of Seismic Vulnerability of All Hospitals in Manila Using Rapid Visual Screening (RVS)

2020 ◽  
Vol 479 ◽  
pp. 012002
Author(s):  
S.J.C. Clemente ◽  
J.S.B. Arreza ◽  
M.A.M. Cortez ◽  
J.R.C. Imperial ◽  
M.J.F. Malabanan
Keyword(s):  
Risk Assessment ◽  
Seismic Vulnerability ◽  
Rapid Visual Screening ◽  
Visual Screening

scholarly journals Seismic Vulnerability Functional Method for Rapid Visual Screening of Existing Buildings

2012 ◽  
Vol 58 (3) ◽  
pp. 363-377 ◽  
Author(s):  
Mohammadreza Yadollahi ◽  
Azlan Adnan ◽  
Rosli Mohamad Zin
Keyword(s):  
Seismic Vulnerability ◽  
Functional Method ◽  
Management Program ◽  
Project Managers ◽  
Rapid Visual Screening ◽  
Ranking Systems ◽  
Final Score ◽  
Visual Screening ◽  
Logarithmic Relationship ◽  
Vulnerability Score

Abstract Rapid Visual Screening (RVS) method for buildings was originally developed by the Applied Technology Council (ATC) in the late 1980’s for potential seismic hazards. This is a simple and almost a quick way of assessing the building seismic vulnerability score based on visual screening. The logarithmic relationship between final score and the probability of collapse at the maximum considered earthquake (MCE) makes results somewhat difficult to interpret, especially for less technical users. This study is developed to improve the simplicity and usefulness of RVS methodology to determine the numeric scores for seismic vulnerability of buildings using vulnerability functional form. The proposed approach applies the existing method in FEMA 154 (2002) for calculating the building rank based on RVS method. In this study RVS scores are used to evaluate populations of buildings to prioritize detailed evaluations and seismic retrofits. The alternate non-logarithmic format of scoring scheme is much better meeting the needs of the project managers and decision makers, as they require results that are easier to understand. It shows the linear equivalent of RVS final scores which is consistent with the existing ranking systems used in the buildings management program such as budget allocation decision making. The results demonstrate that the weight determined for the factor of “Region Seismicity”, which is 0.4033, has the highest contribution to seismic vulnerability scores of buildings. The applicability of the proposed method is demonstrated through a hypothetical example to rank ten seismically vulnerable buildings.

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