2016 Structural Survey
PurposeThe current focus on air tight construction to minimise energy use in homes in the UK requires analysis of the behaviour of the occupants. The purpose of this paper is to review current literature and explore the methods used to dry clothes, to assess current standards and recommendation for the drying of laundry in new homes and the issues arising with increased moisture within the building envelope where there may be inadequate ventilation caused by impermeable design.Design/methodology/approachLiterature is reviewed on new housing in the UK and as part of a wider study of behaviour questionnaires were delivered to occupants of a recently completed housing estate in the UK to ask the questions with regard to their laundry practice.FindingsThere are inherent problems in drying laundry in new air tight homes. This case study identifies 95 per cent of residents on a new estate own a tumble dryer and use either this high energy method for clothes drying or hang clothes internally within the property leading to higher energy use or potential mould growth.Research limitations/implicationsFurther research is required into how drying laundry impacts on internal air quality in new homes designed to be energy efficient.Practical implicationsThe design of new houses needs to be considered to provide a shift in people’s behaviour with regard to low energy clothes drying.Social implicationsPolicy and regulation need to be changed urgently to ensure new homes are fit for purpose with regards to laundry drying.Originality/valueOther research has focussed on tenants in social housing in properties of mixed ages. This is the first study which focusses specifically on new energy efficient housing for owner occupiers.
Chen, Jie; Judd, Bruce; Hawken, Scott
2016 Structural Survey
PurposeWith the dramatic transformation of China’s industrial landscape, since the late 1990s, adaptive reuse of industrial heritage for cultural purposes has become a widely occurring phenomenon in major Chinese cities. The existing literature mainly focusses on specific cases, yet sees heritage conservation similarly at both national and regional scale and rarely identifies the main factors behind the production of China’s industrial-heritage reuse. The purpose of this paper is to examine the differences in heritage reuse outcomes among three Chinese mega-cities and explore the driving factors influencing the differences.Design/methodology/approachThis paper compares selected industrial-heritage cultural precincts in Beijing, Shanghai and Chongqing, and explores the local intervening factors influencing differences in their reuse patterns, including the history of industrial development, the availability of the nineteenth and/or twentieth century industrial buildings, the existence of cultural capital and the prevalence of supportive regional government policy.FindingsThe industrial-heritage reuse in the three cities is highly regional. In Beijing, the adaptation of industrial heritage has resulted from the activities of large-scale artist communities and the local government’s promotion of the city’s cultural influence; while in Shanghai, successful and more commercially oriented “sea culture” artists, private developers in creative industries and the “creative industry cluster” policy make important contributions. Chongqing in contrast, is still at the early stage of heritage conservation, as demonstrated by its adaptive reuse outcomes. Considering its less-developed local cultural economy, Chongqing needs to adopt a broader range of development strategies.Originality/valueThe paper contributes to knowledge by revealing that the production of industrial-heritage cultural precincts in Chinese mega-cities is influenced by regional level factors, including the types of industrial heritage, the spontaneous participation of artist communities and the encouragement of cultural policy.
Puolitaival, Taija; Forsythe, Perry
2016 Structural Survey
PurposeBuilding Information Modelling (BIM) is becoming the new norm in the AEC industry and also part of many construction project management (CPM) programmes. The purpose of this paper is to address the difficulty and challenges in walking the narrow line between an industry-ready BIM and a BIM that is good for student learning and offers a realistic and practical, but simultaneously achievable, learning environment.Design/methodology/approachAn action research was conducted in an undergraduate CPM education setting.FindingsKey challenges encountered were availability of appropriate teaching and learning resources for BIM; finding the balance between theory and practice, technology and process, and traditional and emerging CPM methods; and facilitating staff’s professional development. Closer look was given to the teaching and learning resources for BIM. Theoretical resources that are available for education in the form of books, articles and websites are easy and straightforward to locate. Likewise, a good share of various tools are available for educational purposes. On the other hand, actual building models represent a challenge in terms of preparing and optimising usage of the model for high-quality educational purposes. Several different approaches for obtaining BIM resources were identified with various challenges and benefits.Originality/valueThe results and recommendations will assist educators to better understand and overcome the practical challenges related to BIM education, especially those related to teaching and learning resources.
Wang, Wei; Zhang, Shoujian; King, Andrew Philip
2016 Structural Survey
PurposeThe engineering construction standards in China play an important role in protecting the safety of the construction projects. They are the basic principles that standardize the construction activities and guarantee the quality of projects. However, there are many barriers that affect the adoption of the engineering construction standards. Therefore, the purpose of this paper is to investigate the barriers that challenge the adoption of the engineering construction standards in China.Design/methodology/approachThe research reveals the barriers that affect the implementation of the engineering construction standards in China through a literature review. Then this study uses factor analysis to analyze 12 indices which we get from a questionnaire to build explanations from the results.FindingsAccording to this paper, four main brands of uncorrelated variables are derived which are the main challenges in implementing the engineering construction standards in China: management barriers, policy barriers, knowledge barriers and market barriers. This paper gives a clear classification of the barriers that the enterprises face while adopting the engineering construction standards in China.Originality/valueThis paper makes a contribution to the understanding of the barriers that affect the adoption of the engineering construction standards in China.
Chew, Michael Y.L.; Conejos, Sheila
2016 Structural Survey
PurposeThe use of green wall technology in green buildings is a growing trend; however, more research is required about their maintainability, taking into account that maintainability at the design stage is a valuable strategy in achieving building efficiency and sustainability. Thus, the purpose of this paper is to determine the issues in operating and maintaining green walls, particularly in tropical areas like Singapore, leading to the development of a green maintainability framework.Design/methodology/approachThis research uses a qualitative method that combines a thorough and systematic literature review, multiple case studies, field observation surveys and selected instrumental case studies with building plan appraisal and interviews to investigate the potential issues associated with the maintainability of green walls in tropical areas like Singapore.FindingsThe findings show that technical and environmental issues/defects are prevalent in the operation and maintainability of green wall technologies applied in green buildings located in tropical regions. Proper considerations of these findings will encourage green building designers and facilities managers to collaborate in the effective implementation of operations and maintenance of green building technologies.Originality/valueThis research gives new and significant information while identifying a clear knowledge gap. The paper recommends the formulation of a green maintainability framework with a set of design criteria that will serve as a benchmark in the future design of green walls. The green maintainability framework would be a valuable addition to green facilities management in ensuring the long-term maintainability and sustainability of existing and new green walls in tropical areas specifically in Singapore.
Tumbare, Michael J.; Makwarimba, Peter
2016 Structural Survey
PurposeThe purpose of this paper is to communicate and share experiences with other dam designers, operators and maintenance officers arising from the rehabilitation of the Osborne Dam outlets, pursuant to informing future dam outlet designs and rehabilitation of similar dam outlets.Design/methodology/approachThis paper documents and utilizes actual events that occurred before and during the rehabilitation of the outlets. Some solutions applied were unique, with resultant innovative engineering designs being decided on site. Realizing that a descriptive research format would best serve the sharing of experiences of the outlets’ rehabilitation, the case study approach was selected. Before commencement of the rehabilitation works, the different operational problems that had been identified, photographed and documented by the dam’s operating staff were verified by the dam owner’s engineers, technicians and consultants. Visual and photographic verification was done using divers for areas under water. Literature review was conducted so as to learn from solutions employed elsewhere. A physical model of the solution considered the best way to keep the intake tower dry was made and tested.FindingsThe outlets’ rehabilitation works, taking 12 months to complete at a total cost of US$5 million, involved installation of new service gates, replacement of the sleeve valves, refurbishment of the butterfly valves and provision of dewatering pumps.Originality/valueThis paper offers unique experiences and lessons for dam designers and other dam operation and maintenance officers while contributing to the body of knowledge of outlet works rehabilitation.
Hamzah, Baharuddin; Ishak, Muhammad Taufik; Beddu, Syarif; Osman, Mohammad Yoenus
2016 Structural Survey
PurposeThe purpose of this paper is to analyse thermal comfort and the thermal environment in naturally ventilated classrooms. Specifically, the aims of the study were to identify the thermal environment and thermal comfort of respondents in naturally ventilated university classrooms and compare them with the ASHRAE and Indonesian National Standard (SNI); to check on whether the predicted mean vote (PMV) model is applicable or not for predicting the thermal comfort of occupants in naturally ventilated university classrooms; and to analyse the neutral temperature of occupants in the naturally ventilated university classrooms.Design/methodology/approachThe study was carried out at the new campus of Faculty of Engineering, Hasanuddin University, Gowa campus. A number of field surveys, which measured thermal environments, namely, air temperature, mean radiant temperature (MRT), relative humidity, and air velocity, were carried out. The personal activity and clothing properties were also recorded. At the same time, respondents were asked to fill a questionnaire to obtain their thermal sensation votes (TSV) and thermal comfort votes (TCV), thermal preference, and thermal acceptance. A total of 118 respondents participated in the study. Before the survey was conducted, a brief explanation was provided to the participants to ensure that they understood the study objectives and also how to fill in the questionnaires.FindingsThe results indicated that the surveyed classrooms had higher thermal environments than those specified in the well-known ASHRAE standard and Indonesian National Standard (SNI). However, this condition did not make respondents feel uncomfortable because a large proportion of respondents voted within the comfort zone (+1, 0, and −1). The predictive mean vote using the PMV model was higher than the respondents’ votes either by TSV or by TCV. There was a huge difference between neutral temperature using operative temperature (To) and air temperature (Ta). This difference may have been because of the small value of MRT recorded in the measured classrooms.Originality/valueThe research shows that the use of the PMV model in predicting thermal comfort in the tropic region might be misleading. This is because PMV mostly overestimates the TSV and TCV of the respondents. People in the tropic region are more tolerant to a higher temperature. On the basis of this finding, there is a need to develop a new thermal comfort model for university classrooms that is particularly optimal for this tropical area.
Durdyev, Serdar; Ismail, Syuhaida
2016 Structural Survey
PurposeThe purpose of this paper is to examine the factors constraining the on-site construction productivity and measures for its improvement in Malaysian construction industry.Design/methodology/approachQuestionnaire survey is administered to 171 respondents, comprising government authorities and construction players. A total of 39 constraints are found to be significant factors in various risk levels.FindingsConsequently, improvement measures are recommended addressing those constraints to on-site construction productivity. It is believed that the findings of this study will assist in achieving high level of on-site construction productivity by focusing and acting upon the most risky constraints, where construction players in Malaysia could be guided well in their efforts in a time-, cost- and quality-effective manner.Originality/valueIt is believed that the findings of this study will assist in achieving high level of on-site construction productivity by focusing and acting upon the most risky constraints, where construction players in Malaysia could be guided well in their efforts in a time-, cost- and quality-effective manner.
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