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1 – 10 of over 19000Arturo Cruz, Vaughan Coffey, Tommy H.T. Chan and Miljenka Perovic
This paper presents a conceptual design process for developing a maintenance-focused heritage conservation model. Currently, there are several intervention approaches that can be…
Abstract
Purpose
This paper presents a conceptual design process for developing a maintenance-focused heritage conservation model. Currently, there are several intervention approaches that can be applied in conservation from reconstruction, restoration and repairs to a “do-nothing” approach. This paper examines whether a maintenance solution is more than just an option or a necessity. The aim of the paper is to study the challenges and opportunities when putting more emphasis on the maintenance approach in conservation.
Design/methodology/approach
This research was conducted in an Australian context, where many major buildings were constructed from the 19th and 20th centuries and are now categorised as “modern heritage”. three case studies were undertaken to inform this paper and others. In addition, 17 global heritage conservation experts were interviewed, and their responses were analysed. Also, comparative field observations and archival records were examined and used to develop the initial framework model. Finally, using focus group discussions amongst 7 experts, the framework was reviewed and formally validated in order to ensure the development of a useful model for use in devising an effective maintenance management plan and monitoring conditions in heritage buildings.
Findings
This paper supports others in a series that have already been accepted by this journal, focussing the research on heritage building conservation being conducted in Australia, the homeland of the Burra Charter. The other papers are entitled (1) model for the maintenance-focused heritage building conservation and (2) engineering in heritage conservation.
Originality/value
The paper examines contemporary issues in heritage building maintenance and conservation in Australia and focusses specifically on the lack of focus on maintenance as a conservation intervention for heritage buildings.
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THE policy and organization of the Avro Repair Group was based upon intelligent anticipation—anticipation of the many and varied types of damage that might be expectedl…
Abstract
THE policy and organization of the Avro Repair Group was based upon intelligent anticipation—anticipation of the many and varied types of damage that might be expectedl anticipation of quantities, and anticipation of facilities to deal with all contingencies. The central depot at Bracebridge Heath, Lincoln, developed from an ex‐1914–18 war hangar to an establishment employing nearly 3,000 men and forming the hub of an organization that embraced many stations and subcontractors' works, civilian out‐working parties, of A. V. Roe personnel, effected a high proportion of major repairs to Lancaster, York and Anson aircraft; such parties were stationed all over the British Isles and were supplemented by a fleet of some seventy mobile workshops.
RECENTLY, through the courtesy of the Royal Air Force, we were privileged to make a tour of some of the aerodromes and bases in the Middle East. It is not perhaps generally…
Abstract
RECENTLY, through the courtesy of the Royal Air Force, we were privileged to make a tour of some of the aerodromes and bases in the Middle East. It is not perhaps generally realized that the Middle East Air Force differs from Commands in the United Kingdom in that its technical organization is modelled on the lines of a self‐contained air force.
Using a case study for electrical power equipment, the purpose of this paper is to investigate the importance of dependence between series-connected system components in…
Abstract
Purpose
Using a case study for electrical power equipment, the purpose of this paper is to investigate the importance of dependence between series-connected system components in maintenance decisions.
Design/methodology/approach
A continuous-time Markov decision model is formulated to find a minimum cost maintenance policy for a circuit breaker as an independent component while considering a downstream transformer as a dependent component. Maintenance of the dependent component is included implicitly in terms of the costs associated with certain state-action pairs. For policy and cost comparisons, a separate model is also formulated that considers only the circuit breaker as the independent component. After uniformizing the continuous-time models to discrete time, standard methods are used to solve for the average-cost-optimal policies of each model.
Findings
The optimal maintenance policy and its cost differ significantly depending on whether or not the dependent component is considered.
Research limitations/implications
Data used are from manufacturer databases; additional model validation could be conducted if applied to an electric utility asset fleet within their generation, transmission, and/or distribution system. This model and methodology are already being applied in other contexts such as industrial machinery and equipment, jet engines, amusement park rides, etc.
Practical implications
The outcome of this model can be utilized by asset and operations managers to make maintenance decisions based on prediction rather than more traditional time- or condition-based maintenance methodologies. This model is being developed for use as a module in a larger maintenance information system, specifically linking condition monitor data from the field to a predictive maintenance model. Similar methods are being applied to other applications outside the electrical equipment case detailed herein.
Originality/value
This model provides a structured approach for managers to decide how to best allocate their resources across a network of inter-connected equipment. Work in this area has not fully considered the importance of dependency on systems maintenance, particularly in applications with highly variable repair and replacement costs.
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Mark E. Haskins, Kristy Lilly and Liz Smith
This case provides students the opportunity to practice variance analysis for an annual operating plan using flexible budgeting skills. First, a static budget is flexed to account…
Abstract
This case provides students the opportunity to practice variance analysis for an annual operating plan using flexible budgeting skills. First, a static budget is flexed to account for changes in product volume. Then, actual results are compared to the flexed budget and analyzed for product price, efficiency, and other variances. In addition, the case allows for discussion as to how flexible budgets can be used for management decision making, and how various compensation structures can affect financial results.
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Anand Chandrashekaran and Bhaskaran Gopalakrishnan
Insufficient investment in facilities management organizations lead to postponement of major repairs and replacements of facilities. Lack of centralized information within an…
Abstract
Purpose
Insufficient investment in facilities management organizations lead to postponement of major repairs and replacements of facilities. Lack of centralized information within an organization on the assessment of deficiencies and conditions in the facilities causes these projects to be carried out at the cost of critical replacements and repairs. This paper aims to describe a facilities condition assessment methodology and a tool.
Design/methodology/approach
In this paper, the physical condition and maintenance deficiencies of heating ventilation and air conditioning (HVAC) type of equipment are assessed at its component level using failure checkpoints. The existing conditions of six cooling towers located at West Virginia University were assessed at the component level and an overall condition score was generated by the tool.
Findings
The tool helped to assess checkpoints on the components and identify the potential risk component and its impact.
Research limitations/implications
When facilities managers initiate this structured assessment methodology based on a periodic frequency, the facilities availability and life is maximized apart from reducing overall risk.
Practical implications
The contributions of this paper include the use of a common and comprehensive methodology for HVAC physical condition assessments and risk assessment of component failure impact.
Originality/value
This paper eliminates the most evident scoring limitations in the literature such as “equal numbers or ties,” “summation of lower priority scores exceeding the higher priority score,” and the need for a “cost estimator.” A unique formula was determined for the scoring technique.
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Faisal Faqih, Tarek Zayed and Ghasan Alfalah
A building deteriorates over time due to aging, wear and tear, and inadequate maintenance. Building diagnosis requires a sound knowledge of engineering, building defects, and…
Abstract
Purpose
A building deteriorates over time due to aging, wear and tear, and inadequate maintenance. Building diagnosis requires a sound knowledge of engineering, building defects, and detection tools to assess the condition of a building. The physical deterioration of a building reduces its ability to perform its intended function, while environmental deterioration influences the comfort and health of building occupants. This study presents a multi-tiered framework for the inspection of building elements and the environmental conditions of a building.
Design/methodology/approach
A three-tiered building inspection framework is proposed in this study, which consists of the following: Tier-I—a preliminary inspection, Tier-II—a detailed inspection, and Tier-III—an expert investigation. Each tier of inspection assesses the severity of building defects using different technologies for different levels of inspection.
Findings
Proposed multi-tier inspection framework is tested and implemented on a case study. Results were promising, with organized data management on a common platform for both physical and environmental condition inspection having the potential to save time.
Originality/value
The application program developed for the implementation of structured multi-tiered building inspection provides better documentation and data management for building inspection data that can save time involved in manual data operations in traditional paper-based processes.
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Outlines the extensive survey of the 42 Anglican and 19 RomanCatholic Cathedrals in England undertaken by the author in 1991.Describes the six sections of the survey reports…
Abstract
Outlines the extensive survey of the 42 Anglican and 19 Roman Catholic Cathedrals in England undertaken by the author in 1991. Describes the six sections of the survey reports: factual matters, which included names and addresses of incumbents, architects, etc. and the physical construction of the building; major repairs; repair and conservation work needed for special parts of the fabric; resources, both financial and physical/personnel; recommendations; and subjective assessment. Explains the allocation of grants and their effect on the future of the cathedrals, and explores the possibility of future studies likely to spring from this work.
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Tiina Kähkönen, Mika Vanhala and Kirsimarja Blomqvist
In this paper, the authors describe the step-by-step approach used to develop a trust-repair construct and a valid measurement scale for assessing employee perceptions of the most…
Abstract
Purpose
In this paper, the authors describe the step-by-step approach used to develop a trust-repair construct and a valid measurement scale for assessing employee perceptions of the most effective employee trust-repair practices.
Design/methodology/approach
The initial employee trust-repair scale (ETRS) was completed by 282 employees of a non-profit organization and validated by 101 employees of the administrative unit of the Finnish Army.
Findings
The 14-item seven-factor model was found to be reliable, valid and stable across the samples.
Research limitations/implications
This study contributes to the current literature on trust repair by presenting the first validated measure for employee trust repair.
Practical implications
The findings provide a valuable instrument for practitioners to assess the state of employee trust-repair practices.
Originality/value
To the best of the authors’ knowledge, this is the first study in an organizational context demonstrating an operationally valid and comprehensive measure for employee trust-repair practices.
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Mojgan Mortezaei Farizhendy, Mahmood Golabchi and Esmatullah Noorzai
The purpose of this research is to identify the effective criteria and determine the required infrastructure for the repair of drilling rigs.
Abstract
Purpose
The purpose of this research is to identify the effective criteria and determine the required infrastructure for the repair of drilling rigs.
Design/methodology/approach
The research was carried out through questionnaires and interviews with experts, including consultants, contractors and operators. A long list of the required infrastructure, dividing into three groups of vital, necessary and support, was prepared and compared with the productivity criteria.
Findings
The results show that it is better to prepare and upgrade the vital, necessary and supportive equipment in the shipyards, including refrigeration workshop, cofferdam for repairing spudcans and residential and educational places.
Practical implications
These results are helpful for the industries working on jack-ups and the countries having similar conditions to enable them to use their assets in an optimum way.
Originality/value
Oil drilling rigs' repair and maintenance (R&M) services are essential because of affecting the economy. Furthermore, about 25% of Iran’s oil drilling rigs are jack-up, needing overhauls every five years. Other research has investigated how to repair jack-ups, their incidents, their R&M industry market and, only in some cases mentioned, cost and time criteria. Therefore, it is necessary to identify the criteria and study the infrastructures in the shipyards.
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