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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.
231

En granskning av den svenska prefabricerade småhussektorns användande av BIM-teknik / A review of the Swedish prefabricated single-family house producers’ usage of BIM technology

Nygren, Jonas, Zimic, Emir January 2022 (has links)
Introduction (and purpose) – Since the 1970s, digital development and modeling has improved from simple digital illustrations of a building to advanced software, such as Building Information Modelling (BIM), that allows contractors to easily collaborate on a shared model. These advanced modelling systems create the opportunity to optimize planning as well as produce a higher quality product by modelling how all the various parts of a build work together and decreasing the number of potential errors that occur on-site. To better understand how BIM can improve production, this study aims to investigate the current use of BIM and potential areas of opportunity within the prefabricated housing construction sector. Method – Data was collected through semi-structured interviews with five employees of five separate companies active in the Swedish production industry of single-family houses. Additional data was collected through a survey that was shared with a total of 17 companies, three of which partook in the survey and shared it with the companies’ employees. Results – The interviews and surveys revealed limited use of BIM technology in current developmental practice, although the company representatives still expressed interest in future technological advancement. The company representatives endorsed the ability to automate work processes in both the planning phase as well as the production phase as the greatest reason for expanding future usage. The survey revealed interest in using BIM technology to provide the opportunity to reduce the number of mistakes that occur between different contractors, where collisions may occur between unique models that have not been integrated by a single system. Analysis – According to the interview respondents, the use of BIM technology could create opportunities for businesses to remain relevant by more easily integrating future technological developments. In addition, the use of BIM technology can attract new, competent personnel. The possibility of using cloud-based BIM allows a greater degree of customer involvement in projects. However, the economic value of BIM implementation is not clear as changing established work processes may require new procedures in the company. Therefore, changing to a BIM-based work system may not be economically advantageous to companies that already have a working business model. Discussion – While indicating an interest in future development using BIM, this study revealed currently limited use of BIM technology in prefabricated housing companies, where companies currently dedicate various amounts of recourses for its technological development. A larger, randomized sample would allow for a more generalizable idea of BIM use, as this study’s results could be biased by including opinions only of those who chose to respond from a limited number of companies. The volunteer method of data collection may have skewed results, as people who choose to respond often have strong opinions about the topic. However, using a mixture of interviews and surveys did allow collection of both qualitative and quantitative data and provided an initial look into current opinions about BIM as well as areas where participants believed it could help in production, even if it is not currently in use. / Introduktion (och syfte) – Sedan 1970-talet har utvecklingen av digitala verktyg gått från enkla illustrationer, till Byggnadsinformationsmodellering (BIM), en avancerad samarbetsteknologi som tillåter olika yrkesgrupper att arbeta i en gemensam modell. Tekniken möjliggör både optimeringsmöjligheter vid planering och höjd produktionskvalitet där modelleringen av en byggnad kan minska andelen kollisioner som riskerar uppstå vid montage. För att bättre förstå hur BIM kan förbättra produktion fokuserade studien på att utvärdera nuvarande och framtida potentiella användningsområden inom den prefabricerade småhussektorn. Metod – Datainsamlingen bestod av fem semistrukturerade intervjuer från fem enskilda företag inom den svenska småhusbranschen. Intervjuerna kompletterades med en enkät som delades med totalt 17 företag, varav tre företags medarbetare delade enkäten internt inom företaget. Resultat – Både intervjuerna och enkäten visade ett begränsat användande av BIMteknik i företagens arbetsmetoder, trots det uppgav företagsrepresentanterna ett intresse i framtida teknikutveckling. Företagsrepresentanterna förespråkade möjligheterna att automatisera både projektering och produktion som drivande orsaker för fortsatt teknisk utveckling. Enkätundersökningen visade ett intresse att, i deras arbete använda BIMteknik för ökad kommunikation mellan yrkesgrupper, där potentiella kollisioner mellan modeller från olika system kan hanteras på ett effektivare sätt. Analys – Användandet av BIM-teknik kunde öka företagens möjlighet att lättare implementera framtida teknisk utveckling. Samtidigt som ett högt teknikanvändande kan attrahera ny kompetent personal. Möjligheten att förlägga BIM-tekniken till webbtjänster tillåter beställare att bli mer involverade i sitt husprojekt. Trots det är det inte klart vilket ekonomiskt värde BIM-användandet ger, där implementeringen av ett nytt system kan kräva att justering av flera redan befintliga system inom företaget. Implementeringen av ett BIM-baserat arbetssystem är därför inte en självklar investering för företag som redan i dag har en fungerande verksamhet. Diskussion – Trots ett, i dagsläget, begränsat användande av BIM-teknik visade företagen i den prefabricerande småhusindustrin ett intresse i teknikens framtida utveckling, där företag dedicerar varierande mängd resurser för teknikens utveckling. Fortsatta studier föreslås genomföra med mer omfattande, och slumpmässiga datainsamlingar eftersom undersökningen, som använt ett begränsat antal företag, har krävt att respondenten har velat delta i studien och kan med det tros kunnat gett en partisk bild om ämnet. Användandet av intervjuer för kvalitativa data och enkät för kvantitativa data tillät för en bredare spektrum av åsikter att bli hörda rörande det aktuella användandet av BIM-teknik, och inom
232

Leverans av digitala tvillingar : En fallstudie av utmaningar och dess orsaker / Delivery of Digital Twins : A Case Study of Challenges and Their Causes

Lindström, Niklas, Sundman, Hanna, Nilsson, Olivia January 2024 (has links)
The concept of a digital twin was originated by Nasa who used advanced simulation techniques during their first moon landing but has since evolved and the areas of application have broadened considerably. In recent years, the phenomenon has received a lot of attention in relation to the real estate industry in particular, which have been followed by plenty of research into digital twins within the informatics field. However, there is still a great lack of studies that focus on the supplier’s perspective of the implementation. Therefore, the aim of this study is to identify the root causes of perceived challenges with digital twins from a supplier perspective by identifying what gives rise to problems and difficulties with the implementation of digital twins. This research contributes empirically by delving into the supplier's viewpoint, enhancing theoretical understanding through the identification of underlying causes, and practically by proposing ways to manage these foundational challenges effectively. The findings underscore the importance of addressing the knowledge gap between suppliers and clients early in the implementation process, recommending organizational and technical strategies to optimize digital twin utilization and management.
233

Анализ развития жилищного строительства в Екатеринбурге с оценкой уровня применения ТИМ в 2018-2022 годах : магистерская диссертация / Analysis of the development of housing construction in Yekaterinburg with an assessment of the level of application of TIM in 2018-2022

Болотов, Д. С., Bolotov, D. S. January 2024 (has links)
В работе рассматривается динамика развития жилищного строительства города Екатеринбурга. Рассмотрено как количество ввода жилья, его стоимость за квадратный метр и иные показатели отражают удовлетворенность социальными условиями граждан. Проведен анализ динамики численности, рождаемости, миграции населения и анализ рынка недвижимости в сегменте жилищного строительства. Проведена оценка уровня внедрения ТИМ. / The paper examines the dynamics of the development of housing construction in the city of Yekaterinburg. Considered as the quantity of housing commissioned, its cost per square meter and other indicators reflect satisfaction with the social conditions of citizens. An analysis of population dynamics, birth rates, population migration and an analysis of the real estate market in the housing construction segment were carried out. The level of BIM implementation was assessed.
234

Разработка методических рекомендаций по подготовке цифровой информационной модели к проверке в ГАУ СО «Управление государственной экспертизы» : магистерская диссертация / Development of methodological recommendations for the preparation of a digital information model for verification in the State Autonomous Institution of the Sverdlovsk Region «Office of State Expertise»

Вавилов, И. Е., Vavilov, I. E. January 2024 (has links)
Автором диссертации был проведен анализ требований ГАУ СО «Управление государственной экспертизы» к трехмерным моделям архитектурных и объемно-планировочных, конструктивных решений необходимых для прохождения экспертизы при использовании технологий информационного моделирования. Создана модель жилого здания раздела архитектурных и объемно-планировочных решений, конструктивных решений, описана технология информационного наполнения модели. Разработаны методические рекомендаций по подготовке цифровой информационной модели к проверке в ГАУ СО «Управление государственной экспертизы». / The author of the dissertation analyzed the requirements of the State Autonomous Institution of the Sverdlovsk Region «Office of State Expertise» for three-dimensional models of architectural and spatial planning, constructive solutions necessary for passing an examination using information modeling technologies. A model of a residential building has been created for the section of architectural and spatial planning solutions, constructive solutions, and the technology of information filling of the model is described. Methodological recommendations have been developed for the preparation of a digital information model for verification in the State Autonomous Institution of the Sverdlovsk Region «Office of State Expertise».
235

Создание регламента разработки раздела «Архитектурные интерьеры. Места общего пользования (МОП). Отделочные чертежи» для компании Страна Девелопмент : магистерская диссертация / Creation of regulations for the development of the section «Architectural Interiors. Common areas. Finishing drawings» for the company Strana Development

Колосова, К. А., Kolosova, K. A. January 2024 (has links)
Целью работы является моделирование процесса создания и поддержания в актуальном состоянии регламента создания раздела проектной строительной документации с использованием технологий информационного моделирования. Обсуждение ведется на примере процесса создания регламента для проектирования раздела «Архитектурные интерьеры», который был реализован в ГК «Страна Девелопмент». Использование регламента позволяет значительно сократить время, затрачиваемое на создание разделов рабочей строительной документации и уменьшить количество ошибок, возникающих за счет использование нестандартных решений. В ходе создания регламента были сформулированы общие правила для этого процесса, следуя которым, можно получать не формальные, а применяемые в практической деятельности документы. На основе созданного регламенты был разработан шаблон в ПО «Revit» и эталонный комплект по объекту ПЛХ ГП-15 секция 1. / The purpose of the work is to model the process of creating and maintaining up to date regulations for creating a section of design construction documentation using information modeling technologies. The discussion is based on the example of the process of creating regulations for the design of the “Architectural Interiors” section, which was implemented in the Strana Development Group of Companies. The use of regulations can significantly reduce the time spent on creating sections of working construction documentation and reduce the number of errors that arise through the use of non-standard solutions. During the creation of the regulations, general rules for this process were formulated, following which you can obtain not formal, but documents used in practical activities. Based on the created regulations, a template was developed in Revit software and a reference set for the PLH GP-15 section 1 object.
236

Автоматизация расчета себестоимости строительства объекта «Комплекс жилых зданий со встроенно-пристроенными помещениями общественного назначения и подземными автостоянками квартала 4 в районе «Академический» города Екатеринбурга. Блок 4.5 : магистерская диссертация / Automation of the calculation of the cost of construction of the facility " is a complex of residential buildings with built-in attached public premises and underground parking lots of block 4 in the Akademicheskiy district of the city of Yekaterinburg. Block 4.5"

Старцева, М. Г., Startseva, M. G. January 2024 (has links)
Диссертация посвящена использованию данных цифровых информационных моделей в ГК «Кортрос» для оценки себестоимости строительства на этапах проектирования и подготовки к контрактации строительно-монтажных работ. В рамках исследования рассмотрен инструмент бизнес-аналитики — BI-платформа как метод определения стоимости строительства. А также написан скрипт для автоматизации получения себестоимости строительства с использованием классификационных таблиц. В результате исследования авторами сделаны выводы об использовании аналитики данных информационных моделей на ранних стадиях работы над инвестиционно-строительным проектом для прогнозирования стоимости строительства, а также о BI-платформах как инструментах ее определения. / The dissertation is devoted to the use of these digital information models in the Kortros Group of Companies to estimate the cost of construction at the design stages and preparation for the contracting of construction and installation works. As part of the study , a business intelligence tool, the BI platform, is considered as a method for determining the cost of construction. A script has also been written to automate the production of construction costs using classification tables. As a result of the study, the authors made conclusions about the use of data analytics of information models at the early stages of work on an investment and construction project to predict the cost of construction, as well as about BI-platforms as tools for determining it.
237

具整合性與互通性會計與決策管理系統之資訊模式建立--以某全球化營運之高科技公司個案研究 / An Integral and Interoperable Information Model Design of Accounting and Decision Management System--A Global High-Tech Corp Case Study

石太基, Shih, Tai-chi Unknown Date (has links)
傳統會計與決策管理系統受限於現行財務會計報導的架構,並未儲存與財務無關,或不能以金額衡量的資訊,無法對非財務性決策提供有效的幫助。而資訊語意的差異更使得傳統會計與決策管理系統不易與企業內其他資訊系統互通,造成系統整合上的困擾,歷來不斷有學者探討會計與決策管理系統資訊模式建立之方法,以增進會計與決策管理系統資訊模式的有用性。 本研究提出會計與決策管理系統資訊模式建立之框架與方法,強調會計與決策管理系統之建構,應與企業策略發展整體考量,同時導入REA model整合企業整體資訊模式與財會專業資訊模式,並採用UML作為系統發展流程之塑模工具,編製系統發展有關文件,以利後續選擇解決方案的映對程序,確認解決方案符合使用者需求,及增進會計與決策管理系統在企業內的整合性與互通性。 / Traditional accounting and decision management information system cannot support non-financial decision making, because there is only stored financial information without non-financial information due to the current financial accounting reporting structure. The information semantic differences block interoperability between accounting and decision management information system within the organization. And it also has caused the challenge of enterprise information integration. Researchers strive to find viable information modeling process or method to help accounting and decision management information system to be constructed. This thesis presents accounting and decision management information system information modeling framework and process. The framework stresses the construction of accounting and decision management information system must connect with enterprise vision and strategy. It also adopts and expands REA model to integrate accounting information model and enterprise information model at information modeling process. UML is a high-level modeling tool to develop system processes. The goal is to provide a standard method to develop system blueprints beyond tool-specific system solutions and to apply UML modeling documents to map different system solutions and make sure the solution fit with user requirements, and improve the integration and interoperability for accounting and decision management information system design and development.
238

Fouille de graphes et classification de graphes : application à l’analyse de plans cadastraux / Graph Mining and Graph Classification : application to cadastral map analysis

Raveaux, Romain 25 November 2010 (has links)
Les travaux présentés dans ce mémoire de thèse abordent sous différents angles très intéressants, un sujet vaste et ambitieux : l’interprétation de plans cadastraux couleurs.Dans ce contexte, notre approche se trouve à la confluence de différentes thématiques de recherche telles que le traitement du signal et des images, la reconnaissance de formes, l’intelligence artificielle et l’ingénierie des connaissances. En effet, si ces domaines scientifiques diffèrent dans leurs fondements, ils sont complémentaires et leurs apports respectifs sont indispensables pour la conception d’un système d’interprétation. Le centre du travail est le traitement automatique de documents cadastraux du 19e siècle. La problématique est traitée dans le cadre d'un projet réunissant des historiens, des géomaticiens et des informaticiens. D'une part nous avons considéré le problème sous un angle systémique, s'intéressant à toutes les étapes de la chaîne de traitements mais aussi avec un souci évident de développer des méthodologies applicables dans d'autres contextes. Les documents cadastraux ont été l'objet de nombreuses études mais nous avons su faire preuve d'une originalité certaine, mettant l'accent sur l'interprétation des documents et basant notre étude sur des modèles à base de graphes. Des propositions de traitements appropriés et de méthodologies ont été formulées. Le souci de comblé le gap sémantique entre l’image et l’interprétation a reçu dans le cas des plans cadastraux étudiés une réponse. / This thesis tackles the problem of technical document interpretationapplied to ancient and colored cadastral maps. This subject is on the crossroadof different fields like signal or image processing, pattern recognition, artificial intelligence,man-machine interaction and knowledge engineering. Indeed, each of thesedifferent fields can contribute to build a reliable and efficient document interpretationdevice. This thesis points out the necessities and importance of dedicatedservices oriented to historical documents and a related project named ALPAGE.Subsequently, the main focus of this work: Content-Based Map Retrieval within anancient collection of color cadastral maps is introduced.
239

Análise de confiabilidade estrutural utilizando o método FORM com múltiplos modos de falha para edifício alto submetido à ação do vento / Structural reliability analysis using the FORM method with multiple failure modes to a tall building subjected to wind load

Sakamoto, Beatriz Sayuri 15 December 2016 (has links)
O presente trabalho tem por objetivo aplicar a análise de confiabilidade estrutural a um edifício alto submetido à ação do vento considerando o conforto humano na avaliação dos modos de falha. Para isso, foram consideradas como variáveis aleatórias: a velocidade máxima do vento no topo do edifício cuja distribuição de probabilidade é a distribuição de Gumbel para máximos e o módulo de elasticidade do concreto com modelo de probabilidade normal. Realizou-se a análise para dois modos de falha: o deslocamento excessivo no topo do edifício, com base na NBR 15575-2/2013, e a aceleração máxima para verificação do conforto humano de acordo com a NBR 6123/2013. Posteriormente, foi realizada uma análise conjunta dos modos de falha aplicados em série. O método utilizado foi o FORM – First Order Reliability Method com algoritmo HLRF, implementado em ambiente Matlab, para o edifício teórico CAARC. Verificou-se grandes discrepâncias entre a probabilidade de falha para os dois modos considerados. Para a aceleração máxima, encontrou-se valores práticos de ponto de projeto e probabilidade de falha. No entanto, o deslocamento horizontal de 3 centímetros resultou em uma probabilidade de falha extremamente alta para valores de velocidade de vento baixos, concluindo-se que, para o edifício alto do problema, o limite normativo tende a ser facilmente extrapolado. À vista disso, o parâmetro de deslocamento horizontal baseado na altura total do edifício também foi estudado. Tal análise resultou em uma probabilidade de falha maior que a da aceleração, no entanto, apresentando valores de ponto de projeto consistentes. / The present work aims to apply structural reliability analysis to a tall building subjected to wind load considering human comfort in the evaluation of failure modes. For this purpose, the following random variables were considered: the maximum wind speed at the top of the building whose probability distribution is the Gumbel distribution for maximum and the modulus of elasticity of concrete with normal distribution. The analysis was conducted for two failure modes: excessive displacement on the top of the building, which is based on NBR 15575/2013, and the maximum acceleration for verification of the human comfort according to NBR 6123/2013. A joint analysis of failure modes applied in series was performed. The method used was the FORM - First Order Reliability Method with HLRF algorithm, implemented in Matlab environment, for the theoretical building CAARC. Large discrepancies between the failure probabilities of the two modes considered were found. For maximum acceleration, the design point value and the failure probability found were practical results. However, the horizontal displacement of 3 centimeters resulted in an extremely high probability of failure for low wind speed values, concluding that, for the tall building of the problem, the code limit tends to be easily extrapolated. Hence, the horizontal displacement parameter based on the total height of the building was also studied. Such analysis resulted in a failure probability greater than the acceleration one, however, presenting consistent design point values.
240

Análise de confiabilidade estrutural utilizando o método FORM com múltiplos modos de falha para edifício alto submetido à ação do vento / Structural reliability analysis using the FORM method with multiple failure modes to a tall building subjected to wind load

Sakamoto, Beatriz Sayuri 15 December 2016 (has links)
O presente trabalho tem por objetivo aplicar a análise de confiabilidade estrutural a um edifício alto submetido à ação do vento considerando o conforto humano na avaliação dos modos de falha. Para isso, foram consideradas como variáveis aleatórias: a velocidade máxima do vento no topo do edifício cuja distribuição de probabilidade é a distribuição de Gumbel para máximos e o módulo de elasticidade do concreto com modelo de probabilidade normal. Realizou-se a análise para dois modos de falha: o deslocamento excessivo no topo do edifício, com base na NBR 15575-2/2013, e a aceleração máxima para verificação do conforto humano de acordo com a NBR 6123/2013. Posteriormente, foi realizada uma análise conjunta dos modos de falha aplicados em série. O método utilizado foi o FORM – First Order Reliability Method com algoritmo HLRF, implementado em ambiente Matlab, para o edifício teórico CAARC. Verificou-se grandes discrepâncias entre a probabilidade de falha para os dois modos considerados. Para a aceleração máxima, encontrou-se valores práticos de ponto de projeto e probabilidade de falha. No entanto, o deslocamento horizontal de 3 centímetros resultou em uma probabilidade de falha extremamente alta para valores de velocidade de vento baixos, concluindo-se que, para o edifício alto do problema, o limite normativo tende a ser facilmente extrapolado. À vista disso, o parâmetro de deslocamento horizontal baseado na altura total do edifício também foi estudado. Tal análise resultou em uma probabilidade de falha maior que a da aceleração, no entanto, apresentando valores de ponto de projeto consistentes. / The present work aims to apply structural reliability analysis to a tall building subjected to wind load considering human comfort in the evaluation of failure modes. For this purpose, the following random variables were considered: the maximum wind speed at the top of the building whose probability distribution is the Gumbel distribution for maximum and the modulus of elasticity of concrete with normal distribution. The analysis was conducted for two failure modes: excessive displacement on the top of the building, which is based on NBR 15575/2013, and the maximum acceleration for verification of the human comfort according to NBR 6123/2013. A joint analysis of failure modes applied in series was performed. The method used was the FORM - First Order Reliability Method with HLRF algorithm, implemented in Matlab environment, for the theoretical building CAARC. Large discrepancies between the failure probabilities of the two modes considered were found. For maximum acceleration, the design point value and the failure probability found were practical results. However, the horizontal displacement of 3 centimeters resulted in an extremely high probability of failure for low wind speed values, concluding that, for the tall building of the problem, the code limit tends to be easily extrapolated. Hence, the horizontal displacement parameter based on the total height of the building was also studied. Such analysis resulted in a failure probability greater than the acceleration one, however, presenting consistent design point values.

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