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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.
111

Implantação do Processo BIM no apoio à  execução dentro de uma construtora. / Implementation of the BIM process to support to execution in a construction company.

Lima, Fabiana Karenina de 26 April 2019 (has links)
A Modelagem da Informação da Construção (Building Information Modeling - BIM) veio ajudar a modernizar a indústria da construção civil. No Brasil, com a instabilidade do mercado AEC (Arquitetura, Engenharia e Construção), o BIM se torna um diferencial para as empresas que optam por este processo. São várias as opções de uso para construtoras e sua abrangência corre por todo o ciclo de vida da edificação. Através de revisão bibliográfica e estudo de caso dentro de uma construtora, o presente trabalho visa mostrar as possíveis aplicações do BIM dentro do canteiro de obras, identificando as barreiras para sua aplicação plena. A partir do material de estudo levantado e de survey aplicada a funcionários da construtora estudada, são realizadas propostas de uso da Modelagem da Informação da Construção durante a fase de execução do empreendimento, ou seja, durante a obra. Apesar de serem propostas baseadas em casos de uma empresa de porte e bem situada no mercado, procurou-se generalizar de forma a que distintas construtoras possam se identificar e tirar o máximo proveito dos estudos e conclusões aqui apresentados. / The Building Information Modeling (BIM) is helping to modernize the construction industry. In Brazil, faced with AEC (Architecture, Engineering & Construction) market instability, BIM becomes a differential for companies that opt for this process. There are several construction options for builders and their use throughout the lifecycle of the building. Through a bibliographic review and case study within a construction company, the present research aims to show the possible applications of BIM in construction site, identifying the barriers for its full implantation. From the study material collected and survey applied to employees of the construction company studied, proposals are made to use the Building Information Modeling during the execution phase of the project, that is, during the construction. In spite of being proposals based on cases of a company of size and well placed in the market, it was tried to generalize so that different constructors can identify and take full advantage of the studies and conclusions presented here.
112

Integração entre BIM e BPS: desafios na avaliação de desempenho ambiental na era do projeto e processos digitais / Integration between BIM and BPS: challenges in assessing environmental performance in the project era and digital processes

Pinha, Amanda Puchille 12 May 2017 (has links)
Simulações computacionais são um recurso de grande valia no projeto do edifício, particularmente na área de desempenho ambiental, permitindo predizer fenômenos complexos como desempenho térmico, lumínico, acústico e energético dos edifícios e de seu entorno. O surgimento do BIM (Building Information Modeling ou Modelagem da Informação da Construção), por sua vez, forneceu aos profissionais da indústria da construção novas ferramentas para auxiliar na criação e gestão da informação da construção. Ao combinar um modelo 3D com um banco de dados único do projeto, BIM acaba por reduzir a perda de informação e o retrabalho, permitindo o trabalho colaborativo e aumentando a confiabilidade e rastreabilidade das informações do projeto ao longo do ciclo de vida da construção. Muito antes do BIM, ferramentas de simulação de desempenho do edifício (Building Performance Simulation - BPS, na sigla em inglês) já empregavam modelos 3D, o que significa que especialistas de avaliação ambiental do edifício frequentemente tinham que modelar o edifício - e remodelá-lo cada vez que o projeto fosse alterado - dentro destas ferramentas de modo a executar as análises de desempenho. Neste contexto, a integração entre ferramentas BIM e BPS é fundamental para aumentar a eficiência de uma indústria da construção altamente fragmentada. Nos últimos anos, muitos pesquisadores têm se focado em alcançar tal integração. Este estudo sintetiza as pesquisas nesta questão por meio da revisão sistemática de mais de 250 pesquisas publicadas mundialmente no período de 1991 a 2015. Os resultados mostram que, apesar de um aumento significativo no número de estudos publicados nos últimos cinco anos, a plena integração entre BIM e BPS é um assunto complexo e continua sendo um desafio. Esta revisão sistemática produziu um diagnóstico abrangente e contribui com pesquisadores por revelar padrões, tendências e lacunas da área de pesquisa, orientando assim futuros esforços de pesquisa. / Computer simulations are a valuable resource in building design, notably in the environmental performance field, enabling designers and engineers to predict complex phenomena such as thermal, lighting, acoustic and energy performance. The emergence of BIM (Building Information Modeling), in turn, provided these professionals with new tools to assist in the creating and managing of building information. By combining a 3D model to a unique project database, BIM ultimately reduces the loss of information and rework, allowing collaborative work and increasing reliability and traceability of the project information throughout the construction lifecycle. Long before BIM, Building Performance Simulation (BPS) tools already employed 3D models, meaning that simulationists frequently had to model the building - and remodel it as many times as the design changed - within these tools in order to run performance analyses. In this context, the integration of BIM and BPS tools is critical to increase efficiency of a highly fragmented construction industry. In the past years, many researchers have been focusing on achieving this integration. This study summarizes research on this topic by systematically reviewing over 250 researches published worldwide from 1991 to 2015. Results show that, despite a significant increase in the number of studies published in the last five years, fully integration between BIM and BPS is a complex subject and remains a challenge. This systematic review produced a comprehensive diagnosis and contributes with researchers by revealing patterns, trends and gaps of the research area, orientating future research efforts.
113

Integração entre BIM e BPS: desafios na avaliação de desempenho ambiental na era do projeto e processos digitais / Integration between BIM and BPS: challenges in assessing environmental performance in the project era and digital processes

Amanda Puchille Pinha 12 May 2017 (has links)
Simulações computacionais são um recurso de grande valia no projeto do edifício, particularmente na área de desempenho ambiental, permitindo predizer fenômenos complexos como desempenho térmico, lumínico, acústico e energético dos edifícios e de seu entorno. O surgimento do BIM (Building Information Modeling ou Modelagem da Informação da Construção), por sua vez, forneceu aos profissionais da indústria da construção novas ferramentas para auxiliar na criação e gestão da informação da construção. Ao combinar um modelo 3D com um banco de dados único do projeto, BIM acaba por reduzir a perda de informação e o retrabalho, permitindo o trabalho colaborativo e aumentando a confiabilidade e rastreabilidade das informações do projeto ao longo do ciclo de vida da construção. Muito antes do BIM, ferramentas de simulação de desempenho do edifício (Building Performance Simulation - BPS, na sigla em inglês) já empregavam modelos 3D, o que significa que especialistas de avaliação ambiental do edifício frequentemente tinham que modelar o edifício - e remodelá-lo cada vez que o projeto fosse alterado - dentro destas ferramentas de modo a executar as análises de desempenho. Neste contexto, a integração entre ferramentas BIM e BPS é fundamental para aumentar a eficiência de uma indústria da construção altamente fragmentada. Nos últimos anos, muitos pesquisadores têm se focado em alcançar tal integração. Este estudo sintetiza as pesquisas nesta questão por meio da revisão sistemática de mais de 250 pesquisas publicadas mundialmente no período de 1991 a 2015. Os resultados mostram que, apesar de um aumento significativo no número de estudos publicados nos últimos cinco anos, a plena integração entre BIM e BPS é um assunto complexo e continua sendo um desafio. Esta revisão sistemática produziu um diagnóstico abrangente e contribui com pesquisadores por revelar padrões, tendências e lacunas da área de pesquisa, orientando assim futuros esforços de pesquisa. / Computer simulations are a valuable resource in building design, notably in the environmental performance field, enabling designers and engineers to predict complex phenomena such as thermal, lighting, acoustic and energy performance. The emergence of BIM (Building Information Modeling), in turn, provided these professionals with new tools to assist in the creating and managing of building information. By combining a 3D model to a unique project database, BIM ultimately reduces the loss of information and rework, allowing collaborative work and increasing reliability and traceability of the project information throughout the construction lifecycle. Long before BIM, Building Performance Simulation (BPS) tools already employed 3D models, meaning that simulationists frequently had to model the building - and remodel it as many times as the design changed - within these tools in order to run performance analyses. In this context, the integration of BIM and BPS tools is critical to increase efficiency of a highly fragmented construction industry. In the past years, many researchers have been focusing on achieving this integration. This study summarizes research on this topic by systematically reviewing over 250 researches published worldwide from 1991 to 2015. Results show that, despite a significant increase in the number of studies published in the last five years, fully integration between BIM and BPS is a complex subject and remains a challenge. This systematic review produced a comprehensive diagnosis and contributes with researchers by revealing patterns, trends and gaps of the research area, orientating future research efforts.
114

A framework for simulation-based integrated design of multiscale products and design processes

Panchal, Jitesh H. 23 November 2005 (has links)
The complexity in multiscale systems design is significantly greater than in conventional systems because in addition to interactions between components, couplings between physical phenomena and scales are also important. This complexity amplifies two design challenges: a) complexity of coupled simulation models prohibits design space exploration, and b) unavailability of complete simulation models that capture all the interactions. Hence, the challenge in design of multiscale systems lies in managing this complexity and utilizing the available simulation models and information in an efficient manner to support effective decision-making. In order to address this challenge, our primary hypothesis is that the information and computational resources can be utilized in an efficient manner by designing design-processes (meta-design) along with the products. The primary hypothesis is embodied in this dissertation as a framework for integrated design of products and design processes. The framework consists of three components 1) a Robust Multiscale Design Exploration Method (RMS-DEM), 2) information-economics based metrics and methods for simplification of complex design processes and refinement of simulation models, and 3) an information modeling strategy for implementation of the theoretical framework into a computational environment. The framework is validated using the validation-square approach that consists of theoretical and empirical validation. Empirical validation of the framework is carried out using various examples including: pressure vessel design, datacenter cooling system design, linear cellular alloy design, and multifunctional energetic structural materials design. The contributions from this dissertation are categorized in three research domains: a) multiscale design methodology, b) materials design, and c) computer-based support for collaborative, simulation-based multiscale design. In the domain of design methodology, new methods and metrics are developed for integrating the design of products and design processes. The methods and metrics are applied in the field of materials design to develop design-processes and specifications for Multifunctional Energetic Structural Materials. In the domain of computer-based support for design, an information modeling strategy is developed to provide computational support for meta-design. Although the framework is developed in the context of multiscale systems it is equally applicable to design of any other complex system.
115

A Knowledge Framework for Integrating Multiple Perspective in Decision-Centric Design

Mocko, Gregory Michael 11 April 2006 (has links)
Problem: Engineering design decisions require the integration of information from multiple and disparate sources. However, this information is often independently created, limited to a single perspective, and not formally represented, thus making it difficult to formulate decisions. Hence, the primary challenge is the development of computational representations that facilitate the exchange of information for decision support. Approach: First, the scope of this research is limited to representing design decisions as compromise decision support problems (cDSP). To address this challenge, the primary hypothesis is that a formal language will enable the semantics of cDSP to be captured, thus providing a digital interface through which design information can be exchanged. The primary hypothesis is answered through the development of a description logic (DL) based formal language. The primary research question is addressed in four sub-questions. The first two research questions relate to the development of a vocabulary for representing the semantics of the cDSP. The first hypothesis used to answer this question is that formal information modeling techniques can be used to explicitly capture the semantics and structure of the cDSP. The second research question is focused on the realization of a computer-processible representation. The hypothesis used to answer this question is that DL can be used for developing computational-based representations. The third research question is related to the organization and retrieval of decision information. The hypothesis used to answer this question is DL reasoning algorithms can be used to support organization and retrieval. Validation: The formal language developed in this dissertation is theoretically and empirically validated using the validation square approach. Validation of the hypotheses is achieved by systematically building confidence through example problems. Examples include the cDSP construct, analysis support models, the design of a cantilever beam, and design of a structural fin array heat sink. Contributions: The primary contribution from this dissertation is a formal language for capturing the semantics of cDSPs and analysis support models comprised of: (1) a systematic methodology for decision formulation, (2) a cDSP vocabulary, (3) a graphical information model, and (4) a DL-based representation. The components, collectively, provide a means for exchanging cDSP information.
116

Traductions constructives du projet d'architecture : théoriser le détail à l'ère de la modélisation intégrative

Destombes, Louis 09 1900 (has links)
No description available.
117

Kundnyttan av Tekla Structures som verktyg i broprojektering / The Customer Value of Tekla Structures as a Tool in Bridge Planning

Nilsson, Erik, Alizadeh Goidaragh, Safiyeh January 2013 (has links)
Byggbranschen är inne i en övergångsfas mellan 2D och 3D. BIM, som arbetsmetod, och 3D-modeller blir allt vanligare. I broprojekt är dock efterfrågan på dessa modeller låg. På WSP i Stockholm används 3D-modelleringprogrammet Tekla Structures i stor utsträckning på flera avdelningar. Önskemål finns om att utöka användningen av programmet även inom broprojektering. För att det ska bli möjligt krävs en större efterfrågan hos företagets kunder. Detta examensarbete har till syfte att ur kundens synvinkel utvärdera Tekla Structures som verktyg samt vilken nytta kunden har av Tekla-modeller. För att kunna belysa ämnet ur detta perspektiv har intervjuer gjorts med olika kunder till WSP. Deras behov och syn på BIM och Tekla Structures i brosammanhang har kartlagts och analyserats. Aspekter som kunden lyft fram i intervjuerna har fungerat som plattform för analys av en 3D-modell som konstruerats med hjälp av Tekla Structures samt två redan projekterade broar, modellerade i samma program. Analysen visar att kundnyttan av att använda Tekla-modeller i broprojekt är stor men för att möjliggöra hantering av modellerna krävs stora insatser. Utvärdering av programvaran visar även dess starka respektive svaga sidor. Resultatet av arbetet redovisas i rapportens följande sidor. / The building industry is going trough a transitional stage, from 2D to 3D. BIM, as a working method, and 3D models are becoming more common. In bridge project however, the demand for 3D models is low. At WSP in Stockholm the 3D modelling program Tekla Structures is widely used in several departments. There is a desire to expand the usage of the program also when it comes to bridge planning. To make that possible a bigger request by the customers is required. The purpose of this thesis is to evaluate Tekla Structure as a tool from a customer perspective and to analyse the customer values by using Tekla models. To shed light on this issue interviews have been made with different customers of WSP. The customers’ needs and their reflections on BIM and Tekla Structures in bridge projects are mapped out and analysed. Aspects reached by the customers have served as a basis for analyse of a 3D model, built up in Tekla Structures, as well as two bridges – already modelled in the same program. The analysis shows that there is a big customer value by using Tekla models in bridge projects, but to enable management models great efforts are required. An evaluation of the software also shows both strengths and weaknesses. In the following pages the result is presented.
118

Building Information Modeling (BIM) für Bahn-Bauwerke: Von Datenakquisition bis Virtueller Realität

Färber, Markus, Preidel, Thomas, Schlauch, Markus, Saske, Bernhard, Bernhardt, Adrian, Reeßing, Michael, Cersowsky, Steffen, Krüger, Ronny 06 January 2020 (has links)
Die Digitalisierung im Bauwesen steht unter der großen Überschrift Building Information Modeling (BIM). Ziel ist es, Software-Unterstützung für den gesamten Lebenszyklus eines Bauwerks zu schaffen, beginnend bei der Planung über die Bauausführung bis hin zu Bewirtschaftung und Rückbau. Im Ergebnis sollen alle Prozesse effektiver und effizienter gestaltet werden, um die Produktivität der Bauwirtschaft signifikant zu erhöhen. Hierbei sind die verschiedenen Software-Lösungen so ausgelegt, dass ein übergreifendes virtuelles Gesamtmodell entsteht, welches die Gebäudefunktion zum Planungszeitpunkt simuliert und zu optimieren erlaubt, die interdisziplinäre Zusammenarbeit fördert und die Kommunikation zwischen allen Beteiligten erleichtert. Die vielleicht wichtigste und am deutlichsten sichtbare Rolle spielt dabei, neben der Standardisierung der Datenformate, die Umstellung von 2D- auf 3D-Geometriemodelle. In dieser Arbeit wird beschrieben, welche Herausforderungen und Chancen bezüglich BIM für die Planung von Bahn-Bauwerken bestehen. Der spezifische Fokus liegt auf der Anwendung von 3D-CAD- und 3D-Laserscan-Modellen der zu erstellenden Anlagen.
119

Entwicklung einer Schnittstelle zur Visualisierung von Brandsimulationen im virtuellen Raum

Nabrotzky, Toni 22 December 2023 (has links)
Die Digitalisierung im Bauwesen schreitet immer weiter voran und während in diesem Zusammenhang oftmals das Stichwort Building Information Modeling (BIM) fällt, entwickeln sich Disziplinen wie das Brandschutzingenieurwesen (BSI) unabhängig weiter. Das Brandschutzbüro Brandschutz Consult Ingenieurgesellschaft mbH Leipzig (BCL) verwendet das BSI, um ingenieurtechnische Verfahren heranzuziehen. BCL verfolgt als Unternehmensphilosophie das Ziel, mit neuen Methoden und Erkenntnissen ständig die eigenen Prozesse zu optimieren und zu erweitern. Unter diesem Gesichtspunkt soll in dieser Arbeit in Kooperation mit BCL untersucht werden, inwieweit sich die Ergebnisse aus einer Brandsimulation, darunter besonders der Rauch, in einer virtuellen Realität (engl. Virtual Reality (VR)) darstellen und in bestehende oder potenzielle Anwendungsfälle integrieren lassen. Dazu soll zunächst mit einer Betrachtung der brandschutztechnischen Grundlagen inklusive des BSIs und einer Analyse zum Stand des Brandschutzes in BIM begonnen werden. Im nächsten Schritt sind für die Brandsimulation bestimmte Fragen zu klären, wie z.B. eine entsprechende Berechnung technisch abläuft und welche Ausgabedaten und -formate eine solche Simulation bereitstellt. Zur Darstellung der Simulationsergebnisse in virtuellen Realitäten werden Grafik.Engines benötigt, die VR-Anwendungen ermöglichen. Wichtige Untersuchungsgegenstände sind z.B. die anwendbaren Programmier- und Skriptsprachen, mit deren Einsatz die Daten eingelesen und visualisiert werden können. Für die gefundenen Grafik-Engines wird dann recherchiert, ob es bereits bestehende Anwendungen oder Prozesse zur Darstellung von Brandsimulationen gibt. Ist dies der Fall, sollen deren Workflows untersucht werden, um anschließend ihre grundsätzliche Einsatzfähigkeit zu bewerten und Verbesserungsvorschläge zu äußern...:1. Prozesse im Brandschutz 1.1. Brandschutztechnische Grundlagen 1.2. Angewandte Ingenieurmethoden 1.3. Brandschutz mit Building Information Modeling 2. Ablauf einer Brandsimulation 2.1. Verfügbare Software 2.2. Aufbau einer FDS-Eingabedatei 2.3. Generieren von Simulationsdaten in FDS 2.4. Ausgabedaten und -formate 3. Software zur Darstellung in VR 3.1. Blender 3.2. Unity Engine 3.3. Unreal Engine 3.4. Vergleich der Engines 4. Visualisierung der Brandsimulation 4.1. Konzept der Datenübertragung 4.2. Bestehende Workflows für VR-Programme 4.3. Versuchsdurchführung 4.4. Auswertung der Versuche 5. Anwendungsfälle und Optimierungspotenzial 5.1. Potenzielle Einsatzmöglichkeiten 5.2. Optimierungspotenzial 6. Fazit A. Beispielmodell Blender B. Beispielmodell VRSmokeVis C. Prüfmodell Abkürzungsverzeichnis Abbildungsverzeichnis Tabellenverzeichnis Literaturverzeichnis / Digitization in the construction industry is progressing and while the keyword Building Information Modeling (BIM) is frequently mentioned, disciplines like the fire safety engineering are also evolving independently. The fire protection office Brandschutz Consult Ingenieurgesellschaft mbH Leipzig (BCL)) uses fire safety engineering for including engineering procedures. As a corporate philosophy BCL pursues the goal of constantly optimizing and expanding its own processes with new methods and scientific findings. From this point of view, in cooperation with BCL, this master thesis will examine to which extent it is possible to visualize the results of a fire simulation, in particular including the smoke, in Virtual Reality (VR) and to integrate them into existing or evolving applications. For this purpose, a consideration of the fire protection basics including fire protection engineering and an analysis of the status of fire protection in BIM has been started. In the next step the fire simulation must be investigated, i.e. how the corresponding calculation technically works and which output data and formats such a simulation provides. Graphic engines that enable VR applications are required to display the simulation results in VR. Important objects of investigation are e.g. the applicable programming and scripting languages. Those scripting languages are used to import and visualize the data. For the graphic engines found, research is initiated to determine whether there are already existing applications or processes for displaying fire simulations. If this is the case these workflows should be examined in order to subsequently evaluate their fundamental usability and to express suggestions for improvement. If possible, some of the optimizations should be carried out. Based on the existing processes in fire protection helpful application options are derived, for which the use must be proven in future projects.:1. Prozesse im Brandschutz 1.1. Brandschutztechnische Grundlagen 1.2. Angewandte Ingenieurmethoden 1.3. Brandschutz mit Building Information Modeling 2. Ablauf einer Brandsimulation 2.1. Verfügbare Software 2.2. Aufbau einer FDS-Eingabedatei 2.3. Generieren von Simulationsdaten in FDS 2.4. Ausgabedaten und -formate 3. Software zur Darstellung in VR 3.1. Blender 3.2. Unity Engine 3.3. Unreal Engine 3.4. Vergleich der Engines 4. Visualisierung der Brandsimulation 4.1. Konzept der Datenübertragung 4.2. Bestehende Workflows für VR-Programme 4.3. Versuchsdurchführung 4.4. Auswertung der Versuche 5. Anwendungsfälle und Optimierungspotenzial 5.1. Potenzielle Einsatzmöglichkeiten 5.2. Optimierungspotenzial 6. Fazit A. Beispielmodell Blender B. Beispielmodell VRSmokeVis C. Prüfmodell Abkürzungsverzeichnis Abbildungsverzeichnis Tabellenverzeichnis Literaturverzeichnis
120

Разработка методики моделирования и оптимизации проектирования модульных Навесных Фасадных систем (НФС) в среде Autodesk Revit : магистерская диссертация / Development of a methodology for modeling and optimizing the design of modular Hinged facade systems (HFS) in the Autodesk Revit environment

Краснопеев, А. В., Krasnopeev, A. V. January 2024 (has links)
В данной работе рассматриваются проблемы, связанные с моделированием навесных вентилируемых фасадов и оптимизацией работы с ними в среде Autodesk Revit. Данная работа проведена с целью предложения решения по сокращению трудовых и временных затрат проектирования модульных навесных фасадных систем. Результатом работы является написание инструкции по моделированию НФС по модульной схеме и оценка эффективности проектирования с учетом оптимизации процессов проектирования модульных НФС. / This paper discusses the problems associated with modeling hinged ventilated facades and optimizing work with them in the Autodesk Revit environment. This work was carried out in order to propose a solution to reduce the labor and time costs of designing modular hinged facade systems. The result of the work is the writing of instructions for modeling HFS according to a modular scheme and evaluating the effectiveness of design, taking into account the optimization of the design processes of modular HFS.

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