Journal of Sustainable Architecture and Civil Engineering最新文献

{"title":"Critical Factors Affecting the Success of Construction Projects in Oman","authors":"R. J. Hamad, B. Tayeh, Hamdan A. Al Aisri","doi":"10.5755/j01.sace.29.2.29269","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29269","url":null,"abstract":"Construction in Oman is an important sector that contributes greatly to the country’s economic growth. Recently, the construction projects in Oman have been delayed which has led to delays in the projects’ completion and sometimes to their failure. This study aims to examine the critical factors affecting the success of construction projects in Oman. The extent to which factors related to project parties affect this success was assessed. A quantitative approach based on systematic literature review and questionnaire survey technique was used. The factors were identified and classified into six main categories, namely, time; finance; project designing, planning and scheduling; quality; project progress and development; and environment and nature. The factors are also classified as client-, consultant-, contractor- and external-related factors. This study was conducted by distributing questionnaires to people who experienced working in the public and private construction sectors in Oman. Relative importance index method was used for analysis. Results show that quality is the most important amongst the six investigated categories, followed by time; finance; project progress and development; project designing, planning and scheduling; and environment and nature. The client-related factors have the highest impact on the success of construction projects in Oman, followed by consultant-, contractor- and external environment-related factors. The selection of a low bid, rather than accurate and reliable bids, and the quality and experience of the project team and labour are the most significant factors affecting the success of construction projects in Oman. The contractors’ administrative corruption, indiscipline and dishonesty and the frequent equipment breakdowns are the two least important factors affecting the success of construction projects. The government should encourage clients to improve their procurement strategies and force the construction companies to implement innovative approaches to project delivery.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46456035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the Effects of Applying Social Sustainability Components on Residential Satisfaction","authors":"Mohammadhossein Azizibabani, M. Bemanian, M. Yeganeh","doi":"10.5755/j01.sace.29.2.29217","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29217","url":null,"abstract":"Today, decades after the emergence of the concept of sustainable development, the long-term positive effects of achieving sustainable development goals in all environmental, economic, and social dimensions on the quality of human life are undeniable. The purpose of this research is to explain the mechanism of effects of applying the social sustainability components on the level of residential satisfaction in the scale of residential complexes. The research uses a mixed (quantitative and qualitative) methodology in terms of the nature of the data and the research method is descriptive-analytical (causal and comparative). The conceptual model of the research, which includes the relationships between the variables of perceived quality of social sustainability components, residential desires associated with these components, perceived quality of housing architecture, and residential satisfaction, has been proposed based on the study of theoretical foundations through logical reasoning method. This model has been tested through obtained data from a questionnaire in a field study conducted in the Baghe Behesht residential complex in the Saadatabad neighborhood of Tehran. According to the results, the application of the components of social sustainability has a significant effect on residential satisfaction by improving the quality of housing architecture, and in conditions of qualitative deficiency in social sustainability components, residential desires associated with these components will reduce the perceived quality and the level of residential satisfaction.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43922446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Design Strategies for Healing Internal Environments and Workplaces. A Theoretical Framework","authors":"G. Younis","doi":"10.5755/j01.sace.29.2.28497","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.28497","url":null,"abstract":"The purpose of this paper is to construct a theoretical framework for designing healing environments by drawing from existing research. The approach of the paper surveys the literature on how elements of the design have been brought to bear on healing. This effort leads to a holistic approach that considers multiple dimensions of healing as both an individual and social process. The findings of the paper are harnesses that knowledge to provide a theoretical framework based on three design strategies: 1) supporting strategies that use specific elements to reinforce physical health, vital life energy, and psychological well-being; 2) balancing strategies that are oriented toward harmonizing those elements; and 3) nourishing strategies that address emotions, spiritual life, and the soul. Originality, in summary, this paper traces efforts to harmonize individual human health with the built environment across time and uses related knowledge to crystallize a new theoretical framework. It is hoped that this survey of the literature may add to holistic and systemic understandings of healing environments.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45973707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing Architects’ Perceptions of the Usefulness of Digital Design Environments with their Aspirations for Sustainable Design in Australia","authors":"R. Yu, Michael J. Ostwald","doi":"10.5755/j01.sace.29.2.28355","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.28355","url":null,"abstract":"This paper uses a combined method – survey and semi-structured interviews – to evaluate the perceived effectiveness of digital design environments for supporting architects’ sustainable design practices. In most contemporary firms, architects’ sustainable design aspirations are reliant on the use digital design tools and associated computational platforms. Past research, however, suggests that a level of uncertainty exists about whether these tools and platforms are sufficient for this purpose. To investigate this issue in an Australian context, architects were invited to take part in an online survey to identify general trends and perceptions, leading to a series of semi-structured interviews, to analyse the issues in detail. The survey results (n = 70) suggest that despite considering sustainable design an important objective in their design practice, participants believe that digital design tools require further development and improvement. Detailed interviews (n = 15) then identified specific factors affecting the usefulness of digital design tools. These results enhance our understanding of Australian architects’ experiences using digital design tools. It also contributes to improving the tools that support sustainable design practices throughout the architectural, engineering and construction industry.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46194645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards Passive Design Strategies for Improving Thermal Comfort Performance in a Naturally Ventilated Residence","authors":"K. Rana","doi":"10.5755/j01.sace.29.2.29256","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29256","url":null,"abstract":"Passive design integrates a wide range of climate-based strategies to increase occupant thermal comfort and minimise the need for mechanical systems for heating and cooling. The aim of this study was to improve the thermal comfort performance in a naturally ventilated residence through the identification and evaluation of the best set of passive design strategies. A two-storey residence located in Washington, United States with a temperate climate was selected as the case study residence. A reference simulation model was developed by replicating only the orientation and massing of the case study residence, while certain assumptions were made for other building characteristics. Thermal comfort performance analysis was conducted in the DesignBuilder software. A set of design strategies were introduced as interventions followed by simulation runs to efficiently track progress. From the reference simulation model to the final intervention model, a 50% reduction in the annual discomfort hours was anticipated in the five selected zones of the residence. Following the integration of four major interventions, the target discomfort hours were met in three zones—library, bedroom 1 and bedroom 2, with 53.03%, 60.42% and 58.94% reduction in discomfort hours, respectively. The two remaining zones—living and lounge also had a notable improvement with a reduction of 43.93% and 45.99%, respectively. The successful design strategies included—incorporation of triple glazed, low-emissivity and argon filled openings with wooden frames; integration of overhangs in south-facing windows, minor reduction of openings in the east and west façade, and addition of blinds for window shading; and use of an energy code standard construction for the building components and further addition of insulation in the building envelope. The most effective intervention was the customisation of the window operation schedule based on seasonal air temperature differences to optimise natural ventilation. This study demonstrated that occupant thermal comfort can be significantly improved throughout the year with the appropriate use of passive heating and cooling strategies, thereby reducing energy consumption and the environmental impact of buildings.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71229968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy and Aesthetic Upgrading Interventions: Assessing Urban Block Renovation Scenarios","authors":"D. Tsirigoti, D. Zenginis, D. Bikas","doi":"10.5755/j01.sace.29.2.29176","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29176","url":null,"abstract":"The target towards carbon neutral cities emerges as a new way to mitigate the environmental pollution and the indisputable climate change, but it can also be the chance for the overall improvement of the quality of life by promoting the upgrading of the often low aesthetic quality of the urban environments.\u0000The objective of the research is to investigate renovation strategies at the city scale that will not only reduce the energy demand, but they will also promote the improvement of the city’s aesthetics. Two different typologies of urban block forms of the Greek city are examined, and four scenarios of renovation interventions are analysed according to energy and aesthetic criteria.\u0000The heating and cooling load demand is calculated through simulations for the four renovation scenarios which include:\u0000\u0000The improvement of the thermal insulation of the building’s shells.\u0000The use of phase change materials.\u0000The construction of green roofs.\u0000The integration of passive solar and shading systems.\u0000\u0000The findings of the research prove that the energy interventions at the urban block scale can define the degree of efficiency in the energy performance level without compromising aesthetics, as the added value resulting from higher aesthetics is a basic criterion for the overall improvement of the quality of life.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42601635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment Features of Noise Pollution in the Residential Area of the Subjects of the Russian Federation","authors":"S. Gagarin, O. Gagarina, A. Semakina, G. Platunova, I.Yu. Rubtsova","doi":"10.5755/j01.sace.29.2.29012","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29012","url":null,"abstract":"The distinctive features of the noise protection legislation at the level of 85 subjects of the Russian Federation are considered. The comparative characteristics of the time parameters “day”, “night” for working days and holidays are given. It is compared with similar indicators of other countries. 46% of subjects considered 7 am as the beginning of the “day” period; 61% considered 22 pm as the beginning of the \"night\" period. For the first time Russia developed the following time periods separately: “day rest”, “evening”, “weekends and holidays”. The penalty system for violation of the noise legislation is analysed. Irkutsk region has the “smallest” fines in Russia and Novosibirsk and Belgorod regions have the “biggest” fines.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41857399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Layout in Improving Building Thermal Performance in Bangkok","authors":"Thanun Srithongchai","doi":"10.5755/j01.sace.29.2.29410","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29410","url":null,"abstract":"Selecting a building layout is a fundamental task in the early stage of the architectural design process. High thermal mass buildings with well-insulated envelopes are a common solution for colder climates; however, thinner wall construction and lower mass in most tropical architecture means that a well-designed building layout with good consideration of contextual factors is essential to enhance passive cooling and to decrease heat gain by solar radiation. Building layout factors of perimeter and wall surface area are pivotal in long-term energy utilization. This simulation-based research employs Sketchup, Openstudio, and SPSS to investigate the effect of surface solar radiation on indoor air temperature and sensible cooling energy of 17 geometries with and without a self-shading feature under the identical space volume, floor area, and climatic conditions of Bangkok. The simulation conducted in two phases (with and without an active cooling system) revealed that the lower the F/W ratio is, the lower the DBTindoor-annual and operational cost of the A/C system. The circular plan with the highest F/W ratio (0.47) has the lowest annual wall solar heat gain and DBTindoor-annual (29.43°C), and saves approximately 10% of air cooling energy demand compared to the square design (F/W=0.42). The layouts with S/W ratio less than 2.4 are less effective in lowering the DBTindoor-annual and active cooling energy demand than those with S/W greater than 2.4. It is concluded that the self-shading designs (S/W<2.4) may face challenges due to greater wall surface area and receiving more diffuse solar radiation.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44711314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Past and Future Trends on the Effects of Occupant Behaviour on Building Energy Consumption","authors":"Mahsa Torabi, M. Mahdavinejad","doi":"10.5755/j01.sace.29.2.28576","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.28576","url":null,"abstract":"In recent decades, the need for an accurate evaluation of energy use in buildings has become increasingly growing due to the rise in environmental awareness and political pressure around the world. The estimation of energy consumption is, therefore, a crucial criterion during building early-stage design. This paper investigates the recent trends and achievements in modelling occupant behaviour in energy simulation studies and aims to highlight achievements and research gaps in the domain. This study presents a state-of-the-art theoretical review of the research background through published papers in leading journals within this research domain. The main goals of this study lay in the two layers of determining recent research trends and crucial findings in the subject of occupants' behaviour and energy consumption, and more importantly, to identify research gaps for future studies. This research review highlights several areas for future research including studying behaviour in different countries considering various climate, cultures and comfort preferences affecting energy-driven behaviour and conducting similar studies in different building typologies and occupancies. Moreover, based on the reviewed article, it is clear that evaluating occupant behaviour as an independent variable on a larger scale energy analysis in urban studies needs to be addressed in future studies. The authors found a lack of comprehensive approaches to comfort and considering all forms of comfort while studying behaviour and consumption in recent studies. It is recommended that further investigation of behaviour and total energy consumption regarding occupant real comfort conditions be conducted.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44993507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Different Waste Materials on Resistance of Cement Mortars against Carbonation and Chloride Ingress","authors":"N. Chousidis, G. Batis","doi":"10.5755/j01.sace.29.2.29208","DOIUrl":"https://doi.org/10.5755/j01.sace.29.2.29208","url":null,"abstract":"This work is an extensive experimental study on the corrosion behavior of reinforced cementitious mortars containing industrial byproducts and waste materials. In particular, calcareous (C-class) fly ashes, iron mill scale and Electrolytic Manganese Dioxide (E.M.D.) waste were used as additives in mortars production. The abovementioned materials were used without any prior treatment or management and replaced the cement in concrete mixing by 10% wt. of cement weight. For the experimental set-up, reinforced mortars were prepared and exposed to coastal area for 12 months, while some of them were remained in a salt spray cabin for 60 days. The corrosion monitoring was performed by electrochemical and mass loss measurements, while chloride content, porosity, carbonation and mineralogy of mortars were also estimated. The results indicate, that there is a development in durability and chloride penetration resistance of composites comparing with the conventional mortars at late ages. At the same time, it was also observed that their chemical composition and fineness, control the diffusion of CO2 into the pore system and lead to increased carbonation of composite mortars. The challenge of this work is the production of eco-friendly composites with high chloride and carbon dioxide penetration resistance.","PeriodicalId":36795,"journal":{"name":"Journal of Sustainable Architecture and Civil Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43914969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}