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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Integration of Digital Twin and Deep Learning for facilitating Smart Planning and Construction: An Exploratory Analysis

Kor, Mergen January 2021 (has links)
The Architecture, Engineering, and Construction (AEC) industry is known to be overwhelmed with resource planning, risk management, and logistic challenges, resulting in design defects, project delivery delays, cost overruns, and contractual disputes. These challenges have instigated research in the application of advanced machine learning algorithms such as Deep learning (DL) to help with diagnostic and prescriptive analysis of causes and preventive measures. Construction 4.0 develops through continuous innovations towards digitalization and intelligence, in order to realize a considerable boost in automation, productivity, and reliability. The Digital Twins, as the next level of planning and process control and automation towards Construction 4.0, will incorporate cognitive features that enable sensing complex and unpredicted behavior and reason about dynamic strategies for process optimization to support decision-making. However, there is still a lack of awareness regarding the real impact of DT integration, DL, and IoT, all connected to self-learning hybrid models with proactive cognitive capabilities for smart planning and construction. This study investigates the potential integration of DT and DL to facilitate smart planning and construction through an explorative analysis to identify and close this gap. Data were collected from global industry experts in a mixed approach with interviews, focus groups, and a survey focusing on the applicability and interoperability of DL integrated DT with decision-support capabilities for process optimization. Based on the results of quantitative and qualitative analyses, a conceptual model of the framework has been developed. The evaluations support that the DL integrated DT model will incorporate cognitive abilities to detect complex and unpredictable actions and reasoning about dynamic process optimization strategies to support decision-making in smart planning and construction. / Pre-study for SPARK-SBE potential project
2

Investigating Construction 4.0 Integration in the Greek AEC Industry : Perceptions and Societal Analysis of the AEC Industry / Undersöker integration av Construction 4.0 i den Grekiska AEC industrin : Uppfattningar och samhällsanalys av AEC industrin

Lokovitis, Ilias January 2021 (has links)
The Architecture, Engineering & Construction industry (AEC) is considered one of the largest sectors worldwide and complexed due to the complexity and uniqueness of construction projects. In contradiction to other industries, AEC illustrates high fragmentation, resistance to change, and significantly lower adoption rate of new technology solutions than other industries. The highly disruptive nature of the upcoming technological revolution of the Fourth Industrial Revolution (4IR) in the AEC sector and the need for effective implementation of technological innovations is reified in the concept of Construction 4.0. The technological wave that is expected to arise with the 4IR may subsequently entail both opportunities and threats in technological, organizational, individual, societal and sustainability perspectives. This thesis focuses on two major steps. The first step is the assessment of the AEC industry towards the successful implementation of 4IR in the industry. The second step is dedicated to a horizontal and vertical integration of Construction 4.0 contemplating the social perspective of technology. Qualitative research methods such as literature review and interviews using the PESTELE framework have been applied to gather data that will be analyzed with TOE and Social Construction of Technology Theory (SCOT). This study has realized the necessity to develop a comprehensive approach of the AEC industry based on the societal structure and identified the need for horizontal and vertical assessment of the involved social and professional groups. / Arkitektur, teknik, och byggindustrin (AEC) anses vara en av de största sektorerna världen över och komplexa på grund av byggprojektens komplexitet och unikhet. I motsats till andra industrier illustrerar AEC hög fragmentering, motståndskraft mot förändringar och betydligt lägre antagande av nya teknologilösningar än andra industrier. Den mycket störande karaktären hos den kommande tekniska revolutionen i den fjärde industriella revolutionen (4IR) i AEC sektorn och behovet av ett effektivt genomförande av tekniska innovationer förnyas i begreppet Construction 4.0. Den tekniska vågen som förväntas uppstå med 4IR kan därefter innebära både möjligheter och hot i tekniska, organisatoriska, individuella, samhälleliga och hållbarhetsperspektiv. Denna avhandling fokuserar på två huvudsteg. Det första steget är bedömningen av AEC-industrin mot ett framgångsrikt genomförande av 4IR i branschen. Det andra steget är tillägnad en horisontell och vertikal integration av Construction 4.0 som överväger teknikens sociala perspektiv. Kvalitativa forskningsmetoder som litteraturgranskning och intervjuer med PESTELE ramverket har tillämpats för att samla in data som kommer att analyseras med TOE och Social Construction of Technology Theory (SCOT). Denna studie har insett behovet av att utveckla ett omfattande tillvägagångssätt för AEC-industrin baserat på samhällsstrukturen och identifierat behovet av horisontell och vertikal bedömning av de involverade sociala och yrkesgrupperna.
3

Možnosti propojení cenových soustav a software pro technické kreslení / Analysis of the possibilities of linking building and economic software and software for technical drawing

Domanský, Vojtěch January 2020 (has links)
The main topic of the thesis is the analysis of the possibilities of linking building and economic software and software for technical drawing, in which BIM models are created, in order to achieve automatization of BIM model budgeting. The introductory, theoretical part defines the area of solved problematics in a broader background and the context of the problem. The overarching theme is BIM. Therefore, the basics and principles of this method, its fundamental aspects and current implementation within the Czech Republic are solved. The following chapters deal with standard budgeting procedures in the Czech construction market. The specifics of classical methods and their shortcomings in the context of contemporary construction are described. In the following part of the thesis the BIM budgeting concept, its vision and related aspects are discussed in more detail. The actual draft of the solution of interconnection of price systems and software, in which the BIM model is created, with orientation on valuation automation, is presented in the final, practical part of this thesis. Requirements for solution are defined and the procedure of its creation is described. Finally, the solution is tested and evaluated.
4

Moderní přístupy k projektování elektrických zařízení se zaměřením na železniční stavby / Modern approaches to designing electrical equipment with a focus on railway construction

Forejtník, Jan January 2020 (has links)
The topic Modern Approaches to Designing Electrical Equipment with a Focus on Railway Construction responds to the decision of the Government of the Czech Republic to introduce the BIM method for government over-the-counter contracts from 1 January 2022. The government evaluated the BIM method as an effective tool for digitizing the construction industry. The diploma thesis deals with the method of designing high-current equipment, technologies and distribution on railways according to this new method. The work summarizes information about the present method of design, used high-current electrical equipment on the railway, the near and distant future of railway operation, the organization of administration and maintenance of equipment. It discusses the principle of the BIM method and basic software solutions supporting design activities according to this new method. The Promis.e software published by Bentley is also described in detail, which supports the design of electrical equipment for linear structures according to this method. The BIM method is a means of fulfilling the essence of Construction 4.0. It uses uniform data formats, a common data environment, working with non-graphic information. In the second part of the diploma thesis, the drawing documentation for the sample project of high-current distribution of the railway station was prepared. It was first created using AutoCAD software. After that, the sample project demonstrates the basic principles of the BIM method using Promis.e software. Furthermore, this project is evaluated, both methods of design are compared. The procedure of introducing the BIM method for the design of electrical equipment in a specific design company is proposed and other possible steps in working with the Promis.e software are discussed. The way of creating a and adding element libraries is described. At the end of the diploma thesis it is stated that to successfully master the design work according to the BIM method, it is necessary to have experience with design work in the field, know the principles of the BIM method, choose a suitable software solution, continuously and thoroughly manage these tools and train staff. Under these conditions, it will be possible to make full use of the potential of the BIM method.

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