Proceedings of the Creative Construction Conference 2023最新文献

{"title":"NOVEL DEVELOPMENTS TO PRECAST BRIDGE GIRDER TECHNOLOGY BY THE BME-ZÁÉV RESEARCH COOPERATION","authors":"T. Kovács, J. Dormán, L. Dunai, P. Hartmann, P. Hegyi, A. Joó, Mansour Kachichian, József Kern, S. Nehme, Anna Szijártó","doi":"10.3311/ccc2023-017","DOIUrl":"https://doi.org/10.3311/ccc2023-017","url":null,"abstract":"The Competence Center on Safety Science and Technology joints significant research effort of the Budapest University of Technology and Economics (BME) and the potential industrial partners on several fields of industrial safety. On the building industry branch of this project novel bridge girder technologies have been developed by the cooperation of the Civil Engineering Faculty of BME and the ZÁÉV Construction Co Ltd. (ZÁÉV). These technologies aim to reduce the production time and cost, utilize the structural benefits of post-tensioning and ensure sufficient durability for products subjected to extreme chloride and freeze-thaw effects. The main outcome of the project is the full development of a brand-new, 0,9 m high bridge girder family made of self-compacting concrete. The use of self-compacting concrete is completely new in bridge girder technology in Hungary where high compressive strength both at young age and sufficient durability during 100 years of service life are the major demands to complete. For this purpose two mixes including limestone powder and CEM III type cement as additions were developed and tested in laboratory and factory conditions. The practical applicability of internal bonded and unbonded as well as external unbonded types of post-tensioning with various layouts were tested on two-span prototype systems. Following the international trends to extend service life or to further improve the durability of bridges subjected to extreme environmental conditions, possible solutions can be either to use embedded fibre reinforced polymer (FRP) bars instead of traditional steel ones as reinforcement in concrete or to structurally combine them with post-tensioning of full corrosion protection in hybrid-type bridge girders. The applicability of all these developments were demonstrated by failure load tests on full-scale prototype units of the girder family using an exclusive loading platform built on the storage area of the manufacturer. The developed bridge girder family already has CE marking.","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126998882","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":"REACHING NEW HEIGHTS IN THE USE OF CONCRETE PREFABRICATED PREFINISHED VOLUMETRIC CONSTRUCTION (PPVC) : TWO 56-STOREY RESIDENTIAL TOWERS IN SINGAPORE","authors":"Tan Teng Hooi, Wong Meng Seng, Heng Huat Kim, Geok Mui Maey Leow","doi":"10.3311/ccc2023-018","DOIUrl":"https://doi.org/10.3311/ccc2023-018","url":null,"abstract":"","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130206222","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":"EVOLUTIONARY ALGORITHMS FOR CONSTRUCTION SITE LAYOUT PLANNING","authors":"Konstantinos Kaisar, Panagiotis Farmakis, P. Tsikas, A. Chassiakos","doi":"10.3311/ccc2023-038","DOIUrl":"https://doi.org/10.3311/ccc2023-038","url":null,"abstract":"The arrangement of temporary facilities within a construction site is essential for successfully undertaking a project, as it enhances productivity and ensures both safety and environmental protection. The Construction Site Layout Planning (CSLP) problem is a challenging discrete combinatorial optimization problem involving multiple objectives and has been tackled using various methods, from linear programming to heuristic and meta-heuristic techniques. Evolutionary algorithms have patently been preferred for solving the CSLP problem due to their ability to provide efficient (near-optimal) solutions in reasonable computational time. The present work aims to comparatively evaluate the effectiveness of five well-known evolutionary algorithms in terms of these performance indicators based on a number of case studies of different structure and characteristics. The model implementation is structured in an Excel environment to facilitate the problem setting and calculations while the optimization algorithms have been implemented in the Matlab software. The examined case studies include simple, single-objective formulations (i.e., minimizing the total traveling distances among facilities) and multi-objective formulations that consider, in addition, preferences or constrains in facility setting to account for operational, safety, and environmental considerations. The evaluation results indicate that all methods perform reasonably well from a practical point of view, however, those based on harmony search, simulated annealing, and particle swarm optimization appear to be more flexible in attaining better solution quality and lower computational time. © 2023 The Authors. Published by Diamond Congress Ltd. Peer-review under responsibility of the scientific committee of the Creative Construction Conference 2023.","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125408676","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":"BIM-BASED SEISMIC RISK ASSESSMENT FRAMEWORK FOR INFRASTRUCTURE SYSTEMS","authors":"Alon Urlainis, A. Mitelman, S. Isaac","doi":"10.3311/ccc2023-074","DOIUrl":"https://doi.org/10.3311/ccc2023-074","url":null,"abstract":"Building information modeling (BIM) methodology has been widely adopted for engineering projects, such as buildings, bridges, pipelines, and roads. However, BIM has yet to be fully utilized for risk assessment of critical facilities with multiple infrastructure systems. In this study, a BIM-based seismic risk assessment framework is proposed. The digital BIM model contains component-level information on the building's structural and non-structural elements, and this digital data allows the execution of component-based analysis of seismic risk. The seismic vulnerability of the components can be evaluated according to fragility curves, where each model element is attributed its corresponding fragility parameters. Each model element is assigned the median and standard deviation capacity for each damage state. Subsequently, various seismic scenarios can be simulated. The results of the simulations allow quick assessment of the seismic performance of the infrastructure and identifying the most vulnerable components. The proposed framework provides a valuable tool for engineers and decision-makers in assessing the seismic risk of infrastructures and implementing necessary measures to increase their resilience. Our preliminary work shows that BIM can provide valuable information and visualization tools for seismic risk assessment and can help improve the efficiency of the assessment process.","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123085366","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":"DISEASES IN CONSTRUCTION WORKERS: A CRITICAL REVIEW AND RESEARCH OPPORTUNITIES","authors":"X. Ferrada, C. Valderrama-Ulloa, F. Herrera","doi":"10.3311/ccc2023-065","DOIUrl":"https://doi.org/10.3311/ccc2023-065","url":null,"abstract":"There is a need for change in the construction industry to respond to increasing competitive pressure for more productive systems. Thus, given the concern for improving productivity levels in the industry, it is necessary to face the problem from all perspectives. One of these perspectives of analysis is the worker, who plays a key role in the productivity and final results of a project. This is especially relevant in those parts of the world where construction work remains labour-intensive, so occupational and chronic diseases become of interest. Healthier workers are physically and mentally more energetic, robust, productive, and less likely to be absent from work due to illness. Although many employers are now concerned about the health of their workers, their efforts have focused more on medical costs (insurance) than on interventions to understand the impact of health on workforce productivity. Through a systematic literature review, this article describes the status of some occupational and chronic non-communicable diseases in developing countries and how they affect productivity in the construction industry. This will make it possible to have clarity on the diseases that affect construction workers and that have been most studied, such as cardiovascular diseases, chronic respiratory diseases or diabetes, and also to identify diseases whose impact has been little studied and that require further analysis in order to propose concrete actions to deal with them. Thus, cardiovascular diseases, chronic respiratory diseases and diabetes are the most analyzed diseases in the construction sector. However, mental health, musculoskeletal disorders and audiological diseases are also becoming relevant.","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132632949","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":"EXPLORING THE IMPACT OF TECHNOLOGY ON HVAC COMMISSIONING PRACTICES","authors":"Joyce Herschberger, A. Sattineni","doi":"10.3311/ccc2023-041","DOIUrl":"https://doi.org/10.3311/ccc2023-041","url":null,"abstract":"The primary method to ensure that systems are operating as designed is heating, venting and air conditioning (HVAC) commissioning, painstakingly stepping through a sophisticated process of running, testing, and verifying that the various components move, react, and respond in a way that fully utilizes the equipment and meets the environmental needs of the building occupants. The significant positive impact of technology on HVAC Commissioning is undisputed. Little research exists, however, on the field challenges and resource implications of rapid changes to HVAC components and control software for owners and contractors. This research explores solutions to the challenges that arise when advanced HVAC controls technology becomes burdensome and disadvantageous. The role of HVAC Commissioning within the very real constraints of federal mandates for energy use and the trend to convert from fossil fuels to “clean” fuels cannot be overlooked. The “trade-offs” encountered are substantial when highly sophisticated control sequences are utilized with HVAC equipment in the private sector and government facilities. The consequence of the lack of skilled technicians clearly has the opposite effect on utility savings. This research validates the effect of the practices of skilled professionals that make up the commissioning team to ensure that building HVAC systems perform as intended by the designer and building owner. Data was collected from commission professionals in construction, research and design fields. Qualitative data analysis yielded six primary themes that represent sub-themes that were repeatedly described as challenges, positive benefits or obstacles to progress. Thematic analysis of the primary themes peeked beneath the surface of the interview narratives to ask what is the structure that supports the major themes. Looking for broader implications and consequences, interpretation led to three proposed action topics. Recommendations are offered to improve commissioning practices by solving the implications of technology on human resources and developing partnerships with the industry that promote HVAC systems’ efficiency. Finally, a compilation of industry experts’ perspectives is laid out for re-aligning HVAC equipment, software, and controls technology to fully utilize the vast opportunities for utility savings, equipment longevity, and occupant comfort.","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134417014","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":"THEORY OF INFORMATION IN CONSTRUCTION – IMPLEMENTATION IN CRITICAL INFRASTRUCTURES EXPOSED TO EXTREME EVENTS","authors":"Avigail Eliasian, I. Shohet","doi":"10.3311/ccc2023-050","DOIUrl":"https://doi.org/10.3311/ccc2023-050","url":null,"abstract":"The Theory of Information in Construction based on the hypothesis that failures in critical infrastructures (C.I.) are the result of loss of control in the information system of the CI as a result of information overflow of the system. The theory is established on four phases: (I) Statistical analyses: Probability Density Function of incoming events (PDF), Cumulative Distribution Function (CDF), Power function expressing the magnitude of events, and Scatter analysis; (II) Information Constraint (IC) expressing the capacity if the system, (III) Control circuits (feed-back loops), and (IV) Artificial Intelligence, Machine learning, Artificial Neural Network. The hypothesis of the theory is that failures, deficiencies, accidents and cascading failures are the result of an overflow of information in the system beyond the system's Information Constraint (IC). A similar hypothesis also refers to the performance of critical infrastructures, exposed to extreme abnormal events, caused by extreme events such as climate change, terrorism and seismic events. The events put the critical infrastructures in an extreme situation causing high risk to the continuity of performance of the CI, affecting vital services to civil society. This paper proposes a novel method for multi-hazard risk assessment of overhead transmission lines (OTL) grid. The main objective is to estimate the annual risk using failure rates estimated from historical failure data and modify them by reanalysis data and a dynamic Bayesian scheme. For this purpose, a comprehensive database of power grid supply failures is gathered. ANN is implemented to predict the incoming events, assess the risk and propose preventive activities.","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126059586","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":"GREEN BUILDING: AN ANTIDOTE TO SICK BUILDING SYNDROME MENACE IN AFRICA","authors":"M. Liphadzi, Osunsanmi Temidayo, C. Aigbavboa, W. Thwala, Phuti T, John Aliu","doi":"10.3311/ccc2023-082","DOIUrl":"https://doi.org/10.3311/ccc2023-082","url":null,"abstract":"","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130249505","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":"STUDY ON THE RELATIONSHIP BETWEEN SUSTAINABLE CITIES AND URBAN ENGINEERING MANAGEMENT IN UNDEVELOPED COUNTRIES - A CASE STUDY OF TIMOR-LESTE","authors":"Chen Yih Tzoo, Annette Yee Yen Yeh Yang","doi":"10.3311/ccc2023-076","DOIUrl":"https://doi.org/10.3311/ccc2023-076","url":null,"abstract":"","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129419510","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":"A MACHINE LEARNING FRAMEWORK FOR CONSTRUCTION PLANNING AND SCHEDULING","authors":"K. Wu, Eyob Mengiste, Borja García de Soto","doi":"10.3311/ccc2023-052","DOIUrl":"https://doi.org/10.3311/ccc2023-052","url":null,"abstract":"","PeriodicalId":177185,"journal":{"name":"Proceedings of the Creative Construction Conference 2023","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128837994","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}