Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'最新文献_第5页

CLIMATE CHANGE CHALLENGES FACING SRI LANKA: A LITERATURE REVIEW 斯里兰卡面临的气候变化挑战:文献综述

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.16

S. Dasandara, U. Kulatunga, Mjb Ingirige, T. Fernando

{"title":"CLIMATE CHANGE CHALLENGES FACING SRI LANKA: A LITERATURE REVIEW","authors":"S. Dasandara, U. Kulatunga, Mjb Ingirige, T. Fernando","doi":"10.31705/WCS.2021.16","DOIUrl":"https://doi.org/10.31705/WCS.2021.16","url":null,"abstract":"The earth’s climate has changed throughout history and climate change can be identified as an inevitable phenomenon which is being experienced by the whole world. When considering the Sri Lankan context, it is no different to the global context in that the country’s climate has already changed. Sri Lanka, being an island state, is vulnerable to many climate change impacts including high-temperature levels, adverse weather events, sea level rising, and changes in precipitation patterns. The many challenges that arise from these climate-related issues are projected to continue through this century and beyond. Thus, climate change mitigation and adaptation have become the most appropriate ways to restrain these climate change challenges in Sri Lanka. It is paramount to get a broad understanding of how disastrous these climate change challenges are, prior to implementing appropriate responses to overcome them. This urges the need for conducting an in-depth investigation of prevailing climate change challenges in Sri Lanka. Thus, this study presents the prevailing climate change challenges facing Sri Lanka through a conceptual framework, that has been developed based on the existing literature. The developed framework reveals how these prevailing climate changes can lead to a number of challenges. These challenges were identified under three main categories as economic, social, and environmental challenges. The knowledge generated through this literature review will be the focus of future research.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131986295","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}

引用次数: 0

PSYCHOSOCIAL HAZARDS AND RISKS IN THE CONSTRUCTION INDUSTRY IN NEW SOUTH WALES, AUSTRALIA 澳大利亚新南威尔士州建筑业的社会心理危害和风险

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.42

N. Rezaeian, L. Tang, M. Hardie

{"title":"PSYCHOSOCIAL HAZARDS AND RISKS IN THE CONSTRUCTION INDUSTRY IN NEW SOUTH WALES, AUSTRALIA","authors":"N. Rezaeian, L. Tang, M. Hardie","doi":"10.31705/WCS.2021.42","DOIUrl":"https://doi.org/10.31705/WCS.2021.42","url":null,"abstract":"The construction industry faces many challenges, one of which is the difficult to define psychosocial influences. The construction sector has highly demanding employment conditions, long working hours and sometimes unfeasible terms of project execution. Psychosocial influences represent emotional as well as physiological characteristics which impact the immediate environment. Some construction personnel face psychosocial problems that can lead to depression or suicide. The research conducted in this paper focuses on the psychosocial status of personnel working in construction companies, in New South Wales (NSW), Australia. A questionnaire survey was conducted to investigate the psychosocial hazards observed in the construction industry in NSW. Practitioners in two private construction companies and one government department having construction project management experience in NSW were involved in the survey. The data analysis indicates that most workers experienced being pressured to stay back and work long hours. This led to workers being ‘very frequently’ tired. Regarding bullying, Respondents reported that the frequency of they experienced ‘exclusion or isolation from workplace activities’ was ‘monthly’. Being ‘Subjects of gossip or false, malicious rumours’ was reported as happening ‘weekly’ and ‘Humiliation through gestures, sarcasm, criticism or insults’ was said to happen ‘almost daily’. This study's findings indicate that construction projects could have unaddressed psychosocial hazards and risks, each of which may be a potential factor for accidents and occupational and psychological injuries. The data displayed from this research could help understand psychosocial hazards. Spreading awareness on the issue can hopefully be a step towards improving the mental health of construction workers while decreasing the overall suicide rate.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133035605","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}

引用次数: 3

IDENTIFICATION OF SIGNIFICANT RISK FACTORS OF GUARANTEED MAXIMUM PRICE (GMP) CONTRACTS 确定保证最高价格(gmp)合同的重大风险因素

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.30

AD Palihakkara, B. Perera

{"title":"IDENTIFICATION OF SIGNIFICANT RISK FACTORS OF GUARANTEED MAXIMUM PRICE (GMP) CONTRACTS","authors":"AD Palihakkara, B. Perera","doi":"10.31705/WCS.2021.30","DOIUrl":"https://doi.org/10.31705/WCS.2021.30","url":null,"abstract":"The construction industry is a risk-prone industry where projects are implemented in a dynamic environment with frequent exposure to various uncertainties. A construction contract is a document that allocates the risks associated with a construction project among the project stakeholders. Guaranteed Maximum Price (GMP) contracts have become popular as a project delivery method because they provide the client with a high degree of cost certainty through a fixed price cap that the contractor cannot exceed. However, most of the GMP projects are risky. Thus, the significant risk factors of GMP projects have to be identified to ensure their successful completion. This study, therefore, aimed to identify and rank the most significant risk factors present in GMP contracts. The study adopted a quantitative approach, which included a Delphi survey conducted in two rounds and a statistical analysis of the survey data. The most significant risk factors associated with GMP contracts were ranked according to their impact on the projects and their probability of occurrence (severity). Poorly defined scope of work and design changes were found to be the most significant risk factors associated with GMP contracts. The other significant risk factors of the projects are related to the scope of work, design, documentation, unfamiliarity with the GMP concept, agreed GMP value, and financial failures of the client and contractor.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122448327","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}

引用次数: 1

APPLICABILITY OF BLOCKCHAIN TECHNOLOGY TO MANAGE FINANCIAL ISSUES IN THE SRI LANKAN CONSTRUCTION INDUSTRY 区块链技术在斯里兰卡建筑业财务问题管理中的适用性

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.8

H. Kosala, M. Francis, D. Sirimewan

{"title":"APPLICABILITY OF BLOCKCHAIN TECHNOLOGY TO MANAGE FINANCIAL ISSUES IN THE SRI LANKAN CONSTRUCTION INDUSTRY","authors":"H. Kosala, M. Francis, D. Sirimewan","doi":"10.31705/WCS.2021.8","DOIUrl":"https://doi.org/10.31705/WCS.2021.8","url":null,"abstract":"The construction industry is one of the largest industries in any country, contributing significantly to economic growth. A range of researchers explained that the construction industry suffered from numerous issues where financial issues are more critical. Late payments, cash flow issues, and lack of security of the payment are some of them. Blockchain technology shows a potential use for managing financial activities. Therefore, this research tends to investigate the applicability of blockchain technology to manage financial issues in the Sri Lankan construction industry. A comprehensive literature survey was carried out to assess the concept of blockchain technology and identified financial issues in the construction industry. A qualitative expert opinion survey was conducted with eight construction experts who had knowledge of the blockchain technology, selected through purposive sampling to collect data in a Sri Lankan context. The collected data was analysed using the content analysis method. The findings of the expert interviews indicated that faster transactions would help to reduce late payments; removing third parties from the transaction will reduce the involvement of many parties in the transaction process; and trust, security, transparency will help to increase foreign investments. Further, the lack of knowledge in the area, legal and tax issues, low investment, and social issues will be the challenges in adopting blockchain technology to the construction industry. The research finally suggests the ways to overcome such challenges in terms of using pilot projects, government rules and regulation. Thus, the research proposes that use of blockchain technology could minimise a significant number of financial issues in the construction industry.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123181815","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}

引用次数: 1

ASSESSING THE CARBON EMISSION REDUCTION BY GRID-TIED PHOTOVOLTAIC (PV) TECHNOLOGY FOR BUILDINGS IN SRI LANKA 评估斯里兰卡建筑物的并网光伏(pv)技术的碳减排

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.11

LH Ganegodage, K. Waidyasekara, H. Mallawaarachchi

{"title":"ASSESSING THE CARBON EMISSION REDUCTION BY GRID-TIED PHOTOVOLTAIC (PV) TECHNOLOGY FOR BUILDINGS IN SRI LANKA","authors":"LH Ganegodage, K. Waidyasekara, H. Mallawaarachchi","doi":"10.31705/WCS.2021.11","DOIUrl":"https://doi.org/10.31705/WCS.2021.11","url":null,"abstract":"Energy related carbon emission of buildings is a major cause of global warming. In order to mitigate energy related carbon emission, buildings tend to adopt renewable energy technologies. Amongst renewable energy technologies, grid-tied PV technology has gained the interest of building energy consumers as an alternative energy source. Nevertheless, there is considerably low implementation of grid-tied PV technology in Sri Lanka, especially as a carbon reduction strategy. A key reason for lack of implementation of grid-tied PV system is that majority of buildings still depend on traditional energy sources for their total energy needs. Hence, there is a need of highlighting the importance of grid-tied PV system to penetrate the existing traditional energy market. The aim of this study is therefore to assess the possible energy related carbon reduction of grid-tied PV system for buildings in Sri Lanka. Accordingly, total of four (4) buildings were selected as case studies, including two buildings with grid-tied PV technology and two other buildings that are totally dependent on traditional energy sources. Subsequently, carbon footprint assessment was conducted to four (4) buildings specifying to energy related carbon emitting activities. And research findings revealed that selected two buildings with grid-Tied PV technology achieve an average reduction of carbon by 3379.77kg and 3013.06kg respectively per month compared to traditional-energy buildings. Consequently, this work has successfully identified that buildings with grid-tied PV technology achieve a reduction in energy related carbon emission compared to buildings with traditional energy sources.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123270304","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}

引用次数: 0

WASTE HEAT GENERATION AND POTENTIAL RECOVERY SYSTEMS USED IN SRI LANKAN HOTELS 斯里兰卡酒店使用的废热产生和潜在回收系统

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.49

N. Lakshan, T. Ramachandra, U. Madushika

{"title":"WASTE HEAT GENERATION AND POTENTIAL RECOVERY SYSTEMS USED IN SRI LANKAN HOTELS","authors":"N. Lakshan, T. Ramachandra, U. Madushika","doi":"10.31705/WCS.2021.49","DOIUrl":"https://doi.org/10.31705/WCS.2021.49","url":null,"abstract":"The waste heat recovery concept can be used as a solution to optimise energy consumption while reducing the waste heat in energy generation systems. However, its application in Sri Lankan hotels is still in the infancy stage even though the hotel sector accounts for high energy consumption. Therefore, this research aimed to assess the amount of waste heat generated from the different sources in hotel buildings and thereby identify the most appropriate waste heat recovery systems to the hotel buildings in Sri Lanka through a comparative case study analysis of three similar natured hotel buildings. The required data to perform waste heat calculation were extracted through document reviews and site visits. This study identified the three main waste heat generating sources in hotel buildings: HVAC condenser out, boiler exhaust, and kitchen exhaust. The analysis shows that the condenser out of the HVAC system is the highest waste heat generating source which accounts for an average of 41,823GJ per year while boiler exhaust and kitchen exhaust generate the waste heat of an average of 11,000GJ and 8GJ per year. It is further found that the quality of waste heat generated from the boiler exhaust is higher than the condenser out of the HVAC system and kitchen exhaust. Hence, this study concludes that the boiler has the highest potential of using the waste heat recovery system than the condenser out of the HVAC.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130500485","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}

引用次数: 0

ASSURING SUSTAINABLE CONSTRUCTION AT PROJECT FEASIBILITY STAGE IN SRI LANKA 确保斯里兰卡项目可行性阶段的可持续建设

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-07-09 DOI: 10.31705/WCS.2021.12

G. Senanayake, H. Chandanie

{"title":"ASSURING SUSTAINABLE CONSTRUCTION AT PROJECT FEASIBILITY STAGE IN SRI LANKA","authors":"G. Senanayake, H. Chandanie","doi":"10.31705/WCS.2021.12","DOIUrl":"https://doi.org/10.31705/WCS.2021.12","url":null,"abstract":"Construction activity is commonly considered to have adverse impacts on the environment, which is the basis of sustainable development for human being. Further, sustainability should be addressed mostly in developing countries, such as Sri Lanka, where a considerable amount of construction works is currently in progress and remain to emerge in the future. It is considered that the proper development and operation of a construction project can make significant contribution to the mission of sustainable development. However, the existing difficulty is the lack of the guidance for implementing sustainable development principles in construction industry. Therefore, this research intends to bring the necessity of mandated project feasibility studies as a guideline for sustainable development in the Sri Lankan Context. The research aim was approached through a qualitative survey strategy. To solicit the perceptions of experts on the identified sustainability performance criteria, a semi-structured interview survey was conducted. Ten experts were selected through purposive sampling strategy, who had experience in sustainable construction and project feasibility evaluation criteria. The manual content analysis method was used to analyse the collected data. Findings of the research revealed that though numerous sustainability assessment tools are being practised, there is a failure in sustainable construction in the current context. Thus, the minimum sustainability requirements were identified under the three pillars of sustainability, aiming to develop the project feasibility study as a guideline and to ensure sustainability performance from the project inception stage. These findings are helpful for industry practitioners especially the project owners to initiate a sustainable construction with concerted actions of all project stakeholders to safeguarding the future","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128761447","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}

引用次数: 0

A NEW SAFETY CLIMATE ASSESSMENT TOOL FOR GULF CONSTRUCTION 一种新的海湾建设安全气候评价工具

Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal' Pub Date : 2021-06-04 DOI: 10.31705/WCS.2021.4

T. Umar, N. Umeokafor

{"title":"A NEW SAFETY CLIMATE ASSESSMENT TOOL FOR GULF CONSTRUCTION","authors":"T. Umar, N. Umeokafor","doi":"10.31705/WCS.2021.4","DOIUrl":"https://doi.org/10.31705/WCS.2021.4","url":null,"abstract":"One of the methods which could improve the safety performance of construction organizations is the safety climate approach which is helpful to know the existing maturity level of the safety climate and to develop plans to achieve the required level of maturity. Most of the existing safety climate tools were developed considering different industries in developed countries while construction was based only on few tools. Construction projects in the Gulf Cooperation Council (GCC) member countries are at a peak. This article, therefore, attempts to develop a safety climate assessment tool for the Gulf Cooperation Council (GCC) construction industry. A mixed research method consisting of a systematic review (N = 32), structured questionnaire (N = 102) and email interview (N = 19) was adopted in this research. A new assessment tool that has seven factors including (i) Aligning and Integrating Safety As Value (ii) Training At All Level (iii) Improving Site Safety Leadership (iv) Management Commitment (v) Empowering And Involving Workers (vi) Ensuring Accountability At All Level and (vii) Improving Communication has been finally developed. Each factor is supported by a number of simple questions that the participants have to answer on a Likert scale of 1 to 5 is finally developed. Although, the newly developed tool is validated through email interviews held with the construction industry professionals, however, longitudinal studies are recommended to gauge to the effectiveness of the tool.","PeriodicalId":320967,"journal":{"name":"Proceedings of the 9th World Construction Symposium 2021 on Reshaping construction: Strategic, Structural and Cultural Transformations towards the 'Next Normal'","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117258868","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}

引用次数: 1