Acta Structilia最新文献

{"title":"Building performance evaluation of public housing in Harare, Zimbabwe","authors":"I. Chombo, S. Youm","doi":"10.18820/24150487/as28i2.1","DOIUrl":"https://doi.org/10.18820/24150487/as28i2.1","url":null,"abstract":"This study sought to evaluate the performance of residential building spaces in public housing in Harare, Zimbabwe. It specifically measured building performance indicators determined by the building’s characteristics and the physical, locational and service attributes of buildings. A quantitative research design was adopted, in which questionnaires and observations were used in data collection. A two-stage sampling technique was used, because the population could be subdivided into clusters. From residents in three clusters, which include Highfield-Venice Flats, Avenues Flats and Mbare Flats, 263 respondents were conveniently chosen. Results from the independent t-test that was conducted showed that, at 95% confidence level, there exist significant differences in residential satisfaction among residents of Highfield-Venice Flats and those of Avenues Flats (t = 2.159, p-value= 0.035>0.05). Overall, residents are dissatisfied with the attributes of the buildings in which they live and the general residential situation. There is a general dissatisfaction with the buildings, suggesting that the building performance is not meeting their needs and expectations. Housing attribute preferences, privacy, dwelling proximity, and neighbourhood attachment showed a significant and positive impact on general residential satisfaction. Hence, there is a need to improve housing attribute preferences such as improving the quality of air and lighting as well as noise levels, since respondents expressed dissatisfaction with these attributes. Housing ceilings can be installed to reduce noise levels. More so, the quality of air and lighting can be improved by inserting more air ventilations and wider windowpanes. Privacy should be improved by ensuring that the residential structures have boundary walls that may be needed by the residents. More so, dwelling proximity ought to be improved. The Ministry of National Housing and Social Amenities and other public housing institutions can consider developing structures such as shopping centres, public schools as well as roads and social amenities such as parks, pools and workout facilities before they build residential houses.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48074372","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":"Drivers and effects of sustainable construction in the South African construction industry","authors":"O. Dosumu, C. Aigbavboa","doi":"10.18820/24150487/as28i2.4","DOIUrl":"https://doi.org/10.18820/24150487/as28i2.4","url":null,"abstract":"Sustainable construction is hardly practised in Africa, despite the consistent campaign for its adoption. This study investigates the drivers and effects of sustainable construction in South Africa. The quantitative survey research design was adopted for the study and the respondents were the construction organisations in Johannesburg, South Africa. The study identified 17 significant drivers of sustainable construction, with construction cost as the dominant variable. The important environmental (8), economic (12), and social benefits (7) of sustainable construction were also determined. The challenges (24) of sustainable construction were also identified. The study recommended that measures for low construction cost should be put in place, and awareness campaigns should be enhanced. Economic benefits are still behind environmental benefits, and this could affect some prospective adopters. Lack of knowledge and weak economies were prevalent challenges that underscore the need for Western support for African nations to comfortably adopt sustainable construction.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45979630","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":"Trends in application of Green Star SA credits in South African green building","authors":"D. Hoffman, Ling Huang, J. V. Rensburg, Amy Yorke-Hart","doi":"10.18820/24150487/as27i2.1","DOIUrl":"https://doi.org/10.18820/24150487/as27i2.1","url":null,"abstract":"The South African green building industry is growing towards maturity. Stakeholders need to observe, document, and be informed about trends and development of the industry. This article evaluates whether application trends have emerged of often achieved and seldom achieved Green Star SA credits by all new office buildings that received a Green Star SA rating between 2009 and 2015 in South Africa. Any observed trends are further described by aspects such as the categories of the Green Star SA tool and the Green Star SA rating achieved. The article considers the data of 95 office buildings, made available by the Green Building Council of South Africa (GBCSA). A quantatitive research approach is used to investigate the use frequency of every credit in the Green Star SA tool and to identify trends in credit use. The study finds that 21 of the 67 credits are achieved on average by >80% of the certified projects. Another 14 credits have an average achievement rate of <20%. The nine categories of the Green Star SA tool also varies from average achievements of 84% for Water to only 19% for Innovation. The Green Star SA rating level is also found to be positively correlated to often used credits and negatively correlated to seldom used credits. This article observes industry-wide trends Acta Structilia 2020: 27(2) 2 with the potential to negatively affect the ability of green buildings to deliver the required sustainability outcomes expected of them. This finding and the potential outcome thereof need to be monitored and managed by stakeholders such as the GBCSA.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48611597","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":"The building emission reduction potential of South African residential building efficiency tools – A review","authors":"B. Boshoff, C. Mey","doi":"10.18820/24150487/as27i2.6","DOIUrl":"https://doi.org/10.18820/24150487/as27i2.6","url":null,"abstract":"The building sector’s levels of greenhouse gas emissions and energy consumption are a significant contributor to South Africa’s overall carbon emissions. This influences the country’s ability to meet its commitments to the Paris Agreement, which aims to limit the effects of global climate change. This review article focuses on the climate change mitigation strategies that are employed by the building sector, specifically the potential impact of mandatory and voluntary building energy efficiency regulations, standards, initiatives, and certifications common to South Africa’s residential market. International research on the impact of green building tools tends to focus on the commercial rather than the residential sector, due to limited energy data availability. Within this context and given the exploratory and evaluative nature of the present research endeavour, substantial reliance has had to be made on grey literature for this research. A review of the South African building efficiency tools shows that there is potential for a 16% reduction in the energy intensity of the residential sector by 2030. This will, however, be offset by the projected increased building floor area and is as Acta Structilia 2020: 27(2) 152 such insufficient to meet South Africa’s commitments to the Paris Agreement. Thus, more ambitious targets are required. Given the growth of the residential sector and the potential impact of the various tools, a focus on improved and timeous mandatory regulations for new builds is crucial, in order to meet our climate commitments.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42832127","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":"Book Review ENGLISH-AFRIKAANS BILINGUAL BUILDING DICTIONARY","authors":"","doi":"10.18820/24150487/as27i2.7","DOIUrl":"https://doi.org/10.18820/24150487/as27i2.7","url":null,"abstract":"","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45639761","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":"Identifying factors of collaboration critical for improving health and safety performance in construction projects: A systematic literature review","authors":"N. Rantsatsi, I. Musonda, J. Agumba","doi":"10.18820/24150487/as27i2.5","DOIUrl":"https://doi.org/10.18820/24150487/as27i2.5","url":null,"abstract":"Collaboration is key to the success of construction project delivery. Several researchers have realised the importance of collaboration for health and safety (HS identification test method was used to identify collaboration factors. Using Scopus and Google Scholar, a total of 758 papers were identified. 57 papers were found to be relevant for review through content analysis and were analysed in terms of source and year of publication, research method, country of origin, and research focus. The review identified 11 critical success factors of collaboration: trust, culture, commitment, communication, clear roles and responsibilities, resource/information sharing, mutual goals, conflict resolution, early involvement of key participants, competence, and continual improvement. These factors can influence H&S performance in construction projects. Focusing on these factors can facilitate  collaboration, thus improving H&S performance. The limitation of this article is that the literature review covered a period between 2010 to 2019. Searches in other search engines might have provided additional information on collaboration. The findings of this study make way for future research into the impact of collaboration on H&S performance and provide an understanding that H&S performance can be improved by adopting collaboration. The review concludes that CI should adopt collaboration to influence H&S performance. \u0000Keywords: Construction industry, factors of collaboration, health and safety performance, literature review \u0000  \u0000Samewerking is die sleutel tot suksesvolle konstruksieprojekte. Verskeie navorsers besef die belangrikheid van samewerking vir  gesondheids- en veiligheidsprestasies (GV die identifikasietoetsmetode is gebruik om samewerkingsfaktore te identifiseer. Met behulp van Scopus en Google Scholar is altesaam 758 artikels geidentifiseer. Daar is bevind dat 57 artikels relevant is vir hersiening deur middel van inhoudsanalise en is geanaliseerin terme van bron en jaar van publikasie, navorsingsmetode, land van herkoms en navorsingsfokus. Die oorsig het 11 kritieke  suksesfaktore van samewerking geidentifiseer: vertroue, kultuur, toewyding, kommunikasie, duidelike rolle en verantwoordelikhede, die deel van hulpbronne/inligting, onderlinge doelwitte, konflikoplossing, vroee betrokkenheid van sleuteldeelnemers, bekwaamheid en voortdurende verbetering. Hierdie faktore kan H&S-prestasie in bouprojekte beinvloed. Deur op hierdie faktore te konsentreer, kan dit samewerking vergemaklik en sodoende die prestasie van G&V verbeter. Die beperking van hierdie artikel is dat die literatuuroorsig ’n tydperk tussen 2010 en 2019 beslaan. Soektogte in ander soekenjins kon moontlik aanvullende inligting oor samewerking verskaf. Die bevindinge van hierdie studie maak plek vir toekomstige navorsing oor die impak van samewerking op G&V-prestasies en bied ’n begrip dat G&V-prestasies verbeter kan word deur samewerking. Die oorsig kom tot die gevolgtrekking dat die konstruk","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43256400","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 of transportation efficiency for the delivery of construction material in North-Central Nigeria","authors":"P. Alumbugu, W. Shakantu, A. Tsado","doi":"10.18820/24150487/as27i2.2","DOIUrl":"https://doi.org/10.18820/24150487/as27i2.2","url":null,"abstract":"In Nigeria, knowledge on the management of construction material logistics system, especially in transportation, is inadequate. This article assesses construction material manufacturers’ transportation efficiency for the delivery of construction material, in order to improve manufacturers’ transport operation in North-Central Nigeria. A total of 32 construction material manufacturers delivered their material to 42 distribution centres/warehouses and retailer stores, and 30 construction sites were purposely selected. The selected construction materials manufacturers produce six types of materials, namely cement, reinforcement bars (steel), ceramic tiles, crushed stones, masonry hollow sandcrete blocks, and sand (fine and coarse). A case study research design method was used, in which quantitative data were collected and analysed. An observation (quantitative) guide was used as the research instrument. The quantitative data collected were analysed, using descriptive statistical tools such as frequencies and percentiles. The results revealed that transportation efficiency levels are low in their vehicles’ dwell time, loading and off-loading vehicles at the warehouses, retailer stores, and construction Alumbugu, Shakantu & Tsado • Assessment of transportation efficiency 31 sites. It was also revealed that no technology was used in the transport system to integrate the manufacturers’ warehouses with the other logistics partners in the supply chain. The article concludes that manufacturers should address transportation operations along the delivery nodes to help ensure that the construction material arrives at its final destination at optimal quality, time and cost.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41354097","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":"Housing poverty in developing countries: Challenges and implications for decent accommodation in Swedru, Ghana","authors":"Peres Ofori","doi":"10.18820/24150487/as27i2.3","DOIUrl":"https://doi.org/10.18820/24150487/as27i2.3","url":null,"abstract":"Adequate supply of housing remains a challenge in developing countries. This article assesses the extent of housing poverty in developing countries and its implication for decent accommodation 1 in Swedru, Ghana. Using a cross-sectional survey design coupled with stratified and systematic sampling techniques, 1,161 household participants were selected. Questionnaires and interviews were used to collect raw data from 496 houses in 16 neighbourhoods in the Swedru Township, Ghana. Findings showed that the vast majority of houses in the Swedru Township share common housing facilities such as bathroom and lavatory. This has compelled some households to resort to bathing in open spaces, while practising free range especially in the morning where households have to queue about extent house adequate space, for bathing and using the toilet facility. A room occupancy rate of 5.51 indicates that households are congested and a population of 4,603 accommodated in 496 housing units is evident. It was revealed that the high level of non-decent accommodation in the municipality is attributable to ill-enforcement of building laws that has allowed houseowners to supply housing without lavatories with impunity. Hence, effective implementation of the L.I.1630 was recommended.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48399311","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":"Architectures of informality","authors":"S. Ahmed","doi":"10.18820/24150487/as27i1.7","DOIUrl":"https://doi.org/10.18820/24150487/as27i1.7","url":null,"abstract":"","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46559508","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":"Utilisation of forecasting technology for improving construction logistics in Nigeria","authors":"I. Yahaya, W. Shakantu, S. Ibrahim","doi":"10.18820/24150487/as27i1.1","DOIUrl":"https://doi.org/10.18820/24150487/as27i1.1","url":null,"abstract":"The need to investigate new technology for forecasting purposes in construction logistics is due to the fact that the forecasting ability (modern technology utilisation) of the Nigerian construction sector, in data was analysed, using the thematic method. The results revealed that all the observed manufacturing industries (100%) adopted the Enterprise Resource Planning (ERP) technology for forecasting purposes in the following areas: material, demand, product, and production forecast. Of the observed companies in the manufacturing and retailing industries, 80% and 40%, respectively, adopted the Material Requirement Planning (MRP) technology for forecasting purposes. Only 20% (one project) of the observed construction projects adopted the MRP technology for forecasting in the following: 5% for demand forecast (demand control); 6.7% for material forecast (stock control), and 20% for product forecast (product output). It was also revealed that utilisation of the forecasting technology in construction could have the following benefits: proper resource planning; improved production scheduling; reduction in inventory; effective treatment of scheduling problems, and efficiency of the supply-chain system. Results showed that effective utilisation of forecasting technology in the logistics system of the construction industry could lead to full efficiency gains in forecasting logistics of the construction industry. It is recommended that the Nigerian construction industry should leverage on this, in order to create the best ways of handling the forecasting technology to improve the forecasting logistics systems of the construction process.","PeriodicalId":42571,"journal":{"name":"Acta Structilia","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41398136","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}