Search results
1 – 10 of 12Piyoosh Rautela, Girish Chandra Joshi and Bhupendra Bhaisora
The purpose of this paper is to attempt to assess the seismic vulnerability of the built environment in the Himalayan township of Mussoorie in the state of Uttarakhand (India)…
Abstract
Purpose
The purpose of this paper is to attempt to assess the seismic vulnerability of the built environment in the Himalayan township of Mussoorie in the state of Uttarakhand (India), paying specific attention to hospitals. Also an attempt is made to assess the magnitude of minimum economic losses, so as to design and undertake measures for reducing human misery in the event of a major disaster.
Design/methodology/approach
Seismic vulnerability of the building stock is evaluated using FEMA technique rapid visual screening and the likely earthquake induced damage is depicted as a function of the damage grades of the European Macroseismic Scale (EMS‐98). In total, 3,344 buildings, including 14 hospitals, are surveyed. In the field the structures are mapped using IKONOS satellite imagery while the collected data are analysed under geographic information system environment.
Findings
It was found that 18 percent of surveyed structures fall in high probability of Grade 5 damage and very high probability of Grade 4 damage class. This is estimated to result in economic loss of US$52.47 million. Almost, 80 percent of the hospitals of Mussoorie are thus likely to be non‐functional in the post‐earthquake phase due to varying degrees of structural and non‐structural damage.
Research limitations/implications
The study does not account for the cost of demolition or ground clearance cost for reconstruction, or losses likely to be incurred by public infrastructure. Thus, it is implied that retrofitting and replacement of vulnerable healthcare infrastructure should be facilitated on a priority basis along with development of suitable plans for mitigating losses in an earthquake event.
Practical implications
The study brings forth the importance of corrective actions (retrofitting/replacement) and detailed vulnerability assessment of all lifeline structures on priority basis.
Social implications
The results are intended to reduce seismic vulnerability and human toll in the event of any earthquake in the area.
Originality/value
The work is based upon the original data generated by the authors through rigorous fieldwork in the area and the results are totally based on these.
Details
Keywords
Piyoosh Rautela, Girish Chandra Joshi and Shailesh Ghildiyal
The purpose of this study is to estimate the cost of seismic resilience of identified vulnerable lifeline public buildings in earthquake-prone Himalayan province of Uttarakhand in…
Abstract
Purpose
The purpose of this study is to estimate the cost of seismic resilience of identified vulnerable lifeline public buildings in earthquake-prone Himalayan province of Uttarakhand in India.
Design/methodology/approach
Built area of the identified vulnerable lifeline buildings together with prevalent rate of construction has been considered for assessing the cost of seismic resilience while improvised rapid visual screening (RVS) technique, better suited to the built environment in the region, has been used for assessing seismic vulnerability.
Findings
Investment of US$250.08m is assessed as being required for ensuring seismic safety of 56.3, 62.1, 52.9, 64.6, 71.9 and 61.7% surveyed buildings, respectively, of fire and emergency services, police, health, education, local administration and other departments that are to become non-functional after an earthquake and result in a major socio-political turmoil. A total amount of US$467.71m is estimated as being required for making all the buildings of these departments seismically resilient.
Research limitations/implications
Actual investment estimates and reconstruction/retrofitting plans have to be prepared after detailed investigations as RVS technique only provides a preliminary estimate and helps in prioritising buildings for detailed investigations.
Practical implications
This study is intended to provide a snapshot of the state of seismic vulnerability together with the financial resources required for corrective measures. This is to help the authorities in planning phased mobilisation of financial and technical resources for making the built environment seismically resilient.
Social implications
This study is to bring forth awareness on this important issue and consequent public opinion in favour of safety of public facilities to ensure allocation of appropriate financial resources together with changes in techno-legal regime for the cause of earthquake safety. At the same time, this study is to motivate masses to voluntarily assess safety of their neighbourhood and undertake corrective measures.
Originality/value
This study is based on primary data collected by the authors.
Details
Keywords
Customer support is an essential element in the successful marketing of many products – from domestic appliances to high‐tech computer networks. Many aspects of support are…
Abstract
Customer support is an essential element in the successful marketing of many products – from domestic appliances to high‐tech computer networks. Many aspects of support are strongly influenced by a product’s design and so customer support requirements should be evaluated during new product development. However, researchers have largely ignored the relationship between new product development and customer support. The current study addressed this gap by using case studies and a workshop, both conducted with leading companies, to identify how customer support is typically evaluated at the design stage and to determine the importance of this aspect of new product development. The results have implications for managers responsible for product innovation – they show the need to allocate adequate resources to integrating customer support requirements into new product development.
Details
Keywords
Shivani Chouhan, Aishwarya Narang and Mahua Mukherjee
In the event of a disaster, educational institutions like schools serve as lifeline buildings. Hence, it is crucial to safeguard these buildings for the communities that may…
Abstract
Purpose
In the event of a disaster, educational institutions like schools serve as lifeline buildings. Hence, it is crucial to safeguard these buildings for the communities that may depend on the school as a disaster shelter and aid center. Thus, this paper aims to conduct a multihazard risk assessment survey at 50 schools (with 246 building blocks) in Dehradun.
Design methodology approach
The past few decades have witnessed the impact of multihazard frequency in Uttarakhand, India, due to the geographical features of the Himalayas and its neo-tectonic mountain-building process. Dehradun is the capital of Uttarakhand state and comes under seismic zone IV, which is highly prone to earthquakes.
Findings
The hazard assessment is divided into two types of surveys: first, building-level surveys that include rapid visual screening, nonstructural risk assessment and fire safety audit, and second, campus-level surveys that include vulnerability analysis for earthquake, flood, industrial hazard, landslide and wind.
Social implications
This paper will list several gaps and unrecognized practices in the region that increase the schools’ multihazard risk. The study’s outcome will help prioritize the planning of disaster awareness, retrofitting execution, future construction practices and decision-making to minimize the risk and prepare the school for the upcoming disasters.
Originality value
Physical data were collected by the author to determine the multihazard risk analysis in 50 schools in the Dehradun District of Uttarakhand, India. The building- and campus-level surveys have been used to generate a database for the retrofit and renovation process for each individual school to use their budget fruitfully and in a planned way. The survey conducted is more effort and a more detailed risk evaluation which necessitates effectively mitigating and ensuring the potential safety of the region’s schools.
Details
Keywords
Tactile array sensor systems have a number of capabilities which make them very applicable to industrial robot systems. Work on their development and the interpretation of the…
Abstract
Tactile array sensor systems have a number of capabilities which make them very applicable to industrial robot systems. Work on their development and the interpretation of the sensor data applicable to flexible assembly automation systems is now being carried out in a SERC collaborative project between Sussex University, School of Engineering and Applied Sciences, and Thorn EMI Central Research Laboratories.
Maegan Zarley Watson and Ruoh‐Nan Yan
The purpose of the study is to explore the differences between fast fashion and slow fashion consumers in regards to their consumer decision process stages (i.e…
Abstract
Purpose
The purpose of the study is to explore the differences between fast fashion and slow fashion consumers in regards to their consumer decision process stages (i.e. purchase/consumption, post‐consumption evaluation, and divestment).
Design/methodology/approach
Qualitative data were collected via focus groups and personal interviews. Participants were recruited through flyers that were posted at various locations, including a college campus, select retail stores, and www.craigslist.com The sample consisted of 38 participants, 22 fast fashion and 16 slow fashion. All participants were female, 18 years of age or older, with a mean age of 21.2 years.
Findings
Three groups of themes emerged. The purchase/consumption themes were buyers’ remorse avoidance, utilitarianism, hedonism, and style/self‐image congruence. The post‐consumption evaluation themes included instant satisfaction vs continued satisfaction and consumer expectation confirmation. Finally, the divestment themes consisted of divestment frequencies, divestment reasons, and divestment approaches.
Research limitations/implications
This study explored the purchase and post‐purchase stages of the Consumer Decision Process (CDP) model. This particular focus on the CDP model, in the context of fast (vs slow) fashion, has not been researched in the past. Additionally, this research adds to the body of knowledge by utilizing the CDP model to understand the differences between fast fashion and slow fashion consumers.
Practical implications
Fast fashion and slow fashion retailers may use this research to better understand their target markets by understanding why they choose to purchase/consume, what influences their post‐consumption evaluation, and how and why they choose to divest their clothing.
Originality/value
Past research has demonstrated the importance of understanding the supply chain and business model aspect of fast fashion. However, no empirical studies have been found that examine the decision‐making process of consumers of fast (vs slow) fashion.
Details
Keywords
Md. Shaharier Alam and Shamim Mahabubul Haque
Seismic vulnerability evaluation of various public structures, especially school buildings, is very crucial for designing hazard mitigation initiatives in seismic prone areas. The…
Abstract
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.
Details
Keywords
Nibas Apu and Ravi Sinha
Increasing awareness of the society and complying with design requirements of building codes for seismic safety of structures and inhabitants during severe earthquakes are the…
Abstract
Purpose
Increasing awareness of the society and complying with design requirements of building codes for seismic safety of structures and inhabitants during severe earthquakes are the primary purpose of seismic analysis. This study aims to present the variability in seismic fragility functions for frames of different heights for the most vulnerable condition of structure using nonlinear time history analysis.
Design/methodology/approach
A total of 4, 8 and 20 stories reinforced concrete (RC) moment-resisting two-dimensional frames are considered for this study. Ground motions (GM) are selected as per the conditional mean spectrum and these are conditioned on a target spectral acceleration at the concern time period. RC frames are designed and detailed as per Indian standards. A concentrated plasticity approach is adopted for non-linear analytical modeling of the RC frames. Deterministic capacity limit states in terms of maximum inter-story drift ratio are considered for different damage states. Fragility functions have been derived following a lognormal distribution from incremental dynamic analysis curves. Finally, the maximum likelihood estimation of the response is obtained for fitting curves with observed fragility.
Findings
The fragility functions of the three structures reflect that under critical or extreme conditions of GM the taller buildings have higher fragility than the shorter buildings for each level of limit states even though both are designed to meet their code-level design forces.
Research limitations/implications
The study is conducted on the extreme scenario of GM conditioned on the fundamental time period of each building, whereas comparison can be developed by selecting various methodologies of GM set. The probabilistic capacity model can be developed for future studies to check the fragility variation with deterministic and probabilistic capacity.
Originality/value
The investigation endeavors to present a comprehensive fragility assessment framework by analytical method. The outcome will be useful in the development of a disaster management strategy for new or old buildings and the response of seismic force with a variation of the building’s height. The findings will also be useful for updating the earthquake-resistant building codes for the new building construction in a similar context.
Details
Keywords
Roman Kaczyński and Leongard I. Pogodaev
This paper describes the elastic state of heterogenous materials within the framework of the mechanics of heterogenous continua. Failure condition of a two‐phase material is…
Abstract
This paper describes the elastic state of heterogenous materials within the framework of the mechanics of heterogenous continua. Failure condition of a two‐phase material is formulated and the dependencies of hydroabrasive and cavitational wear of steel on the spacing of the inclusions of martensite in steels with ferritic‐cementitic and austenitic structures are established. The dependence of the wear resistance criterion on the stress, distribution density and austenitic grain diameter is also presented. The results made it possible to develop an effective structure‐energy model to describe wear processes of materials and coatings.
Details