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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

The establishment of performance criteria for the evaluation of procurement of senior staff and private housing projects in the State of Qatar

Al-Derham, Hassan Rashid January 1999 (has links)
A study by the Supreme Planning Council called the attention of problems during the procurement of Senior Staff Housing projects leading to less effective project outcomes. The SPC report put the blame on the current regulations of the scheme. This research evaluated SSH projects in comparison with Private Housing (PH) projects, which were not affected by SSH regulations. A model was developed as part of this research study. The model sets out to embrace the relationships between the variables in the building process. The model takes six main groups of independent variables, namely those that affect the client, the land acquisition, the design phase, the construction phase, disputes and SSH regulations. The effectiveness of the housing projects was measured against quantitative and qualitative performance indicators. The performance variables tested were unit cost; percentage of cost overrun; speed of construction; percentage of time overrun; client's satisfaction with cost and time; client's overall satisfaction; client's rating on quality; aesthetic quality and technical quality. As this study is the first of its kind, exploratory interviews with industry participants were conducted to gain a better understanding of construction practice in Qatar as well as to firm up the design of the client's questionnaire, aesthetic and technical quality evaluation techniques. The main field study resulted in 61 SSH projects and 34 PH projects. The research revealed that PH projects are more effective than SSH projects. It was found that SSH regulations are not the main reason for a less effective outcome. The main reasons were the unclear objectives and bad decisions made by the SSH clients. The research also revealed poor quality workmanship, old construction techniques and the use of inadequate construction materials. Also, a lack of, proper contract forms and means of dispute resolution. There are no institutions for consultants or contractors and a lack of training and development. Together, these factors contribute to the client's poor image of the industry. The research provides recommendations for reorganising the industry to improve its output. These include establishing Construction Industry Council, forming institutions for consultants and contractors, and establishing Housing Council.
2

Tecnologia construtiva de revestimento externo de argamassa com projeção contínua. / Outer rendering constructive technology with mortar and continuous projection.

Asano, Naira Ery 11 March 2016 (has links)
Os métodos construtivos de revestimento externo produzidos com argamassa vêm evoluindo ao longo do tempo, apresentando como maior mudança a substituição da aplicação manual pela projeção mecânica. Atualmente destaca-se no mercado o sistema de execução de revestimento externo com argamassa industrializada e projeção mecânica contínua com bombas helicoidais. Por se tratar de uma tecnologia ainda não muito utilizada pelas construtoras brasileiras, faltam dados confiáveis acerca de seu potencial de ganho de produtividade, redução de perdas, diminuição de contingente de mão de obra, exigências de infraestrutura para aplicação e custos envolvidos. Sem parâmetros confiáveis, adotar a tecnologia significa assumir um nível de risco elevado e isto dificulta a tomada de decisão por parte das construtoras e, por consequência, dificulta-se a evolução tecnológica. Buscando contribuir para o necessário avanço nas tecnologias de produção de revestimentos de edifícios, o objetivo desta pesquisa é estabelecer parâmetros em relação à tecnologia de produção de revestimentos de fachada que empregam argamassa com projeção contínua. Para tanto, buscou-se informações em referências como teses, dissertações, textos técnicos, normas nacionais, dentre outras, bem como, acompanhou-se e avaliou-se os resultados da implantação de um método construtivo de revestimento de argamassa com projeção mecânica contínua em uma construtora de São Paulo. Foram realizados um protótipo e um piloto que contribuíram para o desenvolvimento da tecnologia por meio de apresentação de soluções para os problemas encontrados, do levantamento de melhores práticas e de dados para o cálculo de índices de produtividade e perda. Buscou-se, portanto, a consolidação da tecnologia de projeção contínua na construtora anteriormente mencionada e no mercado em geral. / The external rendering constructive methods produced with mortar have evolved over time and the greater change in it was the replacement of manual application by mechanical projection. The currently most prominent system in the market is the outer rendering execution system with industrialized mortar and continuous mechanical projection with helical pumps. Since this technology is not widely used by Brazilian construction companies, there is a lack of reliable data regarding its productivity gain potential, loss reduction, reduction of hand quota of work, infrastructure required for application and costs involved. Without reliable parameters, the decision to implement this technology is highly risky which does not encourage constructions companies to decide to apply it and, therefore, makes its technological evolution harder to be achieved. Aiming to contribute to the necessary advancement in technology for the production of rendering, this research has the objective to establish parameters to the rendering technology that uses industrialized mortar with continuous projection. With this purpose, it was used as source and reference the specialized literature such as thesis, dissertations and scientific papers, as well as both national norms. In addition, the research included the monitoring and assessment of the results from the implementation of a rendering execution method with continuous mechanical projection in a construction company in Sao Paulo. A prototype and a pilot scale were built and they contributed to the development of this technology by presenting solutions for problems identified and through the mapping of best practices and gathering data that allowed the calculation of productivity and loss rates. The goal was, thus, to consolidate the continuous projection technology in the above-mentioned construction company as well as in the market in a broader way.
3

Building design and environmental performance : thermal comfort through thermal mass and natural ventilation in social housing in Northeast Brazil

De Abreu Negreiros, Bianca January 2018 (has links)
Environmental consciousness leads the construction industry to greater concerns about local adaptation, less waste of resources and energy efficiency In Brazil, earth construction is a feasible approach to house building in many locations and can play a useful part in resolving the housing problems faced by that country, being already a popular approach to providing affordable housing for low income groups within the population, particularly in the Northeast Region of the country, although usually not built correctly. Although used since the colonial period, from 1500, knowledge around earth systems is not formally embedded within the Brazilian building standards and this is unhelpful in terms of promoting quality of performance of buildings thus constructed. For example, appropriate use of high thermal mass in conjunction with natural ventilation, which is frequently used in Brazil due to energy costs, can significantly influence the thermal comfort within residences, but appropriate guidance is lacking. This research considers the combined effects of earth construction and natural ventilation upon thermal comfort within social housing in Northeast Brazil. The main thesis hypothesis is that the use of thermal mass provided by earth construction combined with natural ventilation results in acceptable levels of thermal performance with respect to thermal comfort in both hot and humid and hot and dry climates. The aim is to evaluate the thermal performance of high thermal mass dwellings using adobe system combined with natural ventilation in the bioclimatic zones of Brazil's Northeast Region. The method explores thermal performance simulation using Design Builder, a graphical interface for Energy Plus program. The assessment uses parametric analysis and the adaptive thermal comfort index from de Dear and Brager (1998). The results suggest that earth construction provides a high number of comfort hours in all bioclimatic zones in Northeast Brazil and ventilation use enhances the comfort sensation.
4

Tecnologia construtiva de revestimento externo de argamassa com projeção contínua. / Outer rendering constructive technology with mortar and continuous projection.

Naira Ery Asano 11 March 2016 (has links)
Os métodos construtivos de revestimento externo produzidos com argamassa vêm evoluindo ao longo do tempo, apresentando como maior mudança a substituição da aplicação manual pela projeção mecânica. Atualmente destaca-se no mercado o sistema de execução de revestimento externo com argamassa industrializada e projeção mecânica contínua com bombas helicoidais. Por se tratar de uma tecnologia ainda não muito utilizada pelas construtoras brasileiras, faltam dados confiáveis acerca de seu potencial de ganho de produtividade, redução de perdas, diminuição de contingente de mão de obra, exigências de infraestrutura para aplicação e custos envolvidos. Sem parâmetros confiáveis, adotar a tecnologia significa assumir um nível de risco elevado e isto dificulta a tomada de decisão por parte das construtoras e, por consequência, dificulta-se a evolução tecnológica. Buscando contribuir para o necessário avanço nas tecnologias de produção de revestimentos de edifícios, o objetivo desta pesquisa é estabelecer parâmetros em relação à tecnologia de produção de revestimentos de fachada que empregam argamassa com projeção contínua. Para tanto, buscou-se informações em referências como teses, dissertações, textos técnicos, normas nacionais, dentre outras, bem como, acompanhou-se e avaliou-se os resultados da implantação de um método construtivo de revestimento de argamassa com projeção mecânica contínua em uma construtora de São Paulo. Foram realizados um protótipo e um piloto que contribuíram para o desenvolvimento da tecnologia por meio de apresentação de soluções para os problemas encontrados, do levantamento de melhores práticas e de dados para o cálculo de índices de produtividade e perda. Buscou-se, portanto, a consolidação da tecnologia de projeção contínua na construtora anteriormente mencionada e no mercado em geral. / The external rendering constructive methods produced with mortar have evolved over time and the greater change in it was the replacement of manual application by mechanical projection. The currently most prominent system in the market is the outer rendering execution system with industrialized mortar and continuous mechanical projection with helical pumps. Since this technology is not widely used by Brazilian construction companies, there is a lack of reliable data regarding its productivity gain potential, loss reduction, reduction of hand quota of work, infrastructure required for application and costs involved. Without reliable parameters, the decision to implement this technology is highly risky which does not encourage constructions companies to decide to apply it and, therefore, makes its technological evolution harder to be achieved. Aiming to contribute to the necessary advancement in technology for the production of rendering, this research has the objective to establish parameters to the rendering technology that uses industrialized mortar with continuous projection. With this purpose, it was used as source and reference the specialized literature such as thesis, dissertations and scientific papers, as well as both national norms. In addition, the research included the monitoring and assessment of the results from the implementation of a rendering execution method with continuous mechanical projection in a construction company in Sao Paulo. A prototype and a pilot scale were built and they contributed to the development of this technology by presenting solutions for problems identified and through the mapping of best practices and gathering data that allowed the calculation of productivity and loss rates. The goal was, thus, to consolidate the continuous projection technology in the above-mentioned construction company as well as in the market in a broader way.
5

A NORMA DE DESEMPENHO COMO ORIENTAÇÃO PARA A ELABORAÇÃO DO CÓDIGO DE OBRAS DE SANTANA DO LIVRAMENTO RS. / THE PERFORMANCE STANDARD AS A GUIDANCE FOR THE PREPARATION FOR THE CONSTRUCTION CODE OF SANTANA DO LIVRAMENTO RS

Nicolini, Elda 14 April 2015 (has links)
The ABNT NBR 15575 - Performance - Buildings, came into force in July 2013, bringing major changes to the Construction sector, because it establishes minimum quality standards, based on the performance and durability of the systems. The focus of this Standard is on the requirements of users for the housing building and its systems, as their behavior in use and not in limitation of how systems are built. On the other hand, the Code of Constructions and Buildings in the city of Santana do Livramento (COE-SL), RS, is being reworked by the City Hall and it is necessary to include articles in this Act that address the performance requirements. The overall objective of the research was to conduct a thorough study of the Standard and verify what are the main requirements that should guide the Code of Constructions and Buildings in the city, which have been facing serious problems due to climatic factors (such as rainfall and strong winds). There was, after literature review on standardization, performance, municipal building codes, and especially on the Performance Standard, verification of each of the standard requirements and were prepared tables of systems addressed to the verification of need, or not, its inclusion in the COE-SL. Thus, in the presentation of the results, we defined how each selected item might be required and how to do this requirement. Thus, we sought to contribute to transform the Code of Constructions and Buildings in an efficient mechanism in the process of obtaining buildings with good performance. / A ABNT NBR 15575 - Desempenho Edificações, entrou em vigor em Julho de 2013, trazendo grandes mudanças para o setor da Construção Civil, pois estabelece padrões mínimos de qualidade, baseados no desempenho e na durabilidade dos sistemas. O foco desta Norma está nas exigências dos usuários para o edifício habitacional e seus sistemas, quanto ao seu comportamento em uso e não na prescrição de como os sistemas são construídos. Por outro lado, o Código de Obras e Edificações da cidade de Santana do Livramento (COE-SL), RS, está sendo reelaborado pela Prefeitura Municipal e faz-se necessária a inclusão de artigos nessa Lei que contemplem os requisitos de desempenho. O objetivo geral da pesquisa era realizar um estudo aprofundado da Norma e verificar quais os principais requisitos que deveriam orientar o Código de Obras e Edificações da cidade, que vêm enfrentando sérios problemas devidos a fatores climáticos (como chuvas e ventos fortes). Fez-se, após a revisão bibliográfica sobre normalização, desempenho, códigos de obras municipais e, especialmente, sobre a Norma de Desempenho, a verificação de cada um dos requisitos da Norma e foram elaborados quadros relativos aos sistemas abordados com a verificação da necessidade, ou não, da sua inclusão no COE-SL. Assim, na apresentação dos resultados, definiu-se a forma como cada item selecionado poderia ser exigido e de que forma se faria essa exigência. Dessa forma, buscou-se contribuir para transformar a Lei do Código de Obras e Edificações num mecanismo eficiente no processo de obtenção de edificações com bom desempenho.
6

Strategisk linjering av prestationsmått : En fallstudie om utformning och implementering av produktionsmål inom anläggning

Anglöv, Alexander January 2021 (has links)
Bygg- och anläggningsindustrin brottas med frågor kring produktivitetsutveckling, då inte önskad produktivitet alltid uppnås. För att kunna öka och utveckla produktiviteten bör anläggningsföretag kunna mäta och följa upp sina prestationer. Genom att kunna mäta prestationer skapas en förståelse över hur verksamheten går och i vilken riktning den är på väg. Det finns svårigheter med att ta fram ett tydligt arbetssätt kopplat till målarbete inom anläggning då alla projekt har unika förutsättningar att utgå ifrån. Fel inom anläggningsprojekt kan leda till stora ekonomiska konsekvenser för företaget, och utan en tydlig målbild med relevanta prestationsmått är det svårt att veta om arbetet som utförs ligger i linje med de satta målen eller ej. För att kunna bemöta problemen har forskning inom problemområdet föreslagit att det är viktigt att det finns ett linjerat arbetssätt genom hela organisationen, så kallad strategisk linjering. Då företag inom bygg- och anläggningsbranschen länge blivit kritiserade för sin långsamma utveckling är strategisk linjering av prestationsmått ett intressant område att studera. Det är även ett relativt outforskat område när det kommer till andra studier och speciellt fallstudier inom bygg- och anläggningssektorn. Syftet med examensarbetet är att bidra till en ökad kunskap om strategisk linjering av produktionsmål och prestationsmått och dess specifika implementering inom anläggning. Examensarbetet studerar ett konkret implementeringsarbete avseende strategisk linjering av produktionsmål och prestationsmått inom ett anläggningsföretag. Målet med studien är att, med utgångspunkt i litteratur inom ämnesområdet adressera följande två huvudfrågeställningar: 1.     Hur kan ett anläggningsföretag implementera strategisk linjering mellan produktionsmål och prestationsmått? 2.     Vad kan utgöra hinder respektive möjliggörare vid implementering av strategisk linjering av prestationsmått inom anläggning?   Datainsamlingen har bestått av intervjuer, dokumentinsamling och observationer. Innan datainsamlingen påbörjades utfördes en litteraturstudie inom forskningsområdet strategisk linjering av prestationsmått som ligger till grund för den teoretiska referensramen och den framtagna analysmodellen.   För att möjliggöra implementering av strategisk linjering mellan produktionsmål och prestationsmått krävs en sammanhängande målnedbrytning från ett anläggningsföretags övergripande mål ned till specifika produktionsmål som sedan kan följas upp genom tydliga mätbara prestationsmått. Prestationsmåtten ska vara lätta att förstå och utföra, och vara linjerade med de specifika produktionsmålen som i sin tur är linjerade med anläggningsföretagets övergripande mål. Analysen av litteraturen sammanvägt med fallföretagets förutsättningar visar att det är av värde att ha prestationsmått som både indikerar på vad som sker just nu, och vad som har skett under en viss period för att både kunna vara proaktiva och reaktiva i sitt agerande kopplat mot målarbetet. De prestationsmått som återkommande nämns i litteratur kring strategisk linjering av prestationsmått och som är analyserade i studien för att uppfylla detta är key performance indicators (KPI), performance indicators (PI), result indicators (RI) och key result indicators (KRI). Då projekt inom anläggningsbranschen består av väldigt varierande förutsättningar finns det möjliggörare för att lyckas implementera strategisk linjering av prestationsmått, men det finns även en del hinder.   Det största hindret med strategisk linjering av prestationsmått som upptäcktes i studien är att lyckas få prestationsmåtten tydligt mätbara då olika aktiviteter i ett anläggningsprojekt mäts i olika enheter. Det har visat sig att vara viktigt att alla som ska använda prestationsmåtten har en förståelse varför de ska användas, och hur de ska användas för att få öka möjligheterna för ett gemensamt arbetssätt inom företaget. Ytterligare ett hinder är om prestationsmåtten tas fram utan anknytning till produktionsmål, kritiska framgångsfaktorer, strategi, övergripande mål och vision, vilket skulle bidra till en avsaknad av enhetlighet inom ett anläggningsföretags målarbete. Det sista hindret som studien visar är om prestationsmåtten används på fel sätt och enbart visar resultat på past performance. Möjliggörarna till strategisk linjering av prestationsmått har visat sig vara att tydligt utformade prestationsmätningar bidrar till ett gemensamt arbetssätt, och det blir enklare att kontinuerligt följa upp resultat över tid. Med tydligt utformade prestationsmått ökar sannolikheten att tidigt upptäcka avvikelser som i sin tur kan korrigeras i rätt tid innan problemet hinner växa sig större. Rekommendationerna till fallstudieföretaget och andra anläggningsföretag blir att tydliggöra hur prestationsmåtten ska mätas, och hur de ska följas under projekten. Nästa steg blir att tydligt sprida prestationsmåtten ut i verksamheten för att säkerställa att alla förstår hur de ska användas vilket kan leda till större möjlighet att styra processen i rätt riktning.
7

Improving design management techniques in construction

Bibby, Lee January 2003 (has links)
Recent years has seen a significant drive away from traditional procurement routes with contractors finding themselves with an increasing responsibility for control of design - a process they have had little experience in managing. They now have to adapt accordingly. The learning curve is steep, not least because many projects must now be delivered fast track while co-ordinating increasingly complex fabric and content of buildings without a platform of accepted good practice to manage the design process. This is a major factor preventing the UK construction industry from delivering projects on time, to budget and to the specified quality. There is a need to educate an increasing number of people in design management techniques to equip them to manage today's fast moving and demanding projects. However, many current design management tools are insufficiently developed for industry application. Therefore, to improve design management in the industry, current techniques must be modified to align them with the needs of the modern design manager. This research has developed and tested a training initiative aimed at improving design management practice within a major UK Design and Construct Contractor. It comprises a Design Management Handbook, Design Management Training, Team Support and Project Monitoring. The Design Management Handbook is the core of the training initiative. It addresses critical aspects of design management practice and provides design management tools. Training provides guidance to project teams on the tools and practices. In Team Support project teams are supported in the implementation of the new practices and tools to help embed new ways of working in company practice. Project Monitoring establishes the impact of the new practices on project performance to demonstrate that they are working and thus reinforce change. To establish the training initiative's effectiveness and key findings, the impact of the initiative on design management performance has been explored. The research has established which practices and tools were used, which were not, as well as an understanding the applicability and performance of each Handbook practice and tool. From this, barriers to implementing new design management tools in industry were identified and strategies developed in order to overcome such barriers.
8

Strategies for Improving Labor Productivity in Construction Companies

Buli, Lakew G. 01 January 2017 (has links)
Even with advanced technology and new project management methodologies, construction company leaders continue to face challenges to improve labor productivity. This multiple case study was an exploration of the strategies that construction company leaders use to improve labor productivity in Doha, Qatar. The case population consisted of 6 construction company leaders operating in Doha, Qatar, who successfully identified and implemented strategies to improve labor productivity. The conceptual framework for this study was the expectancy theory. The data collection process included semistructured interviews and company documentation. Data were compiled and organized, disassembled into fragments, reassembled into a sequence of groups, and interpreted for meaning. Methodological triangulation and member checking bolstered the trustworthiness of those interpretations. Five themes emerged from these 6 construction company leaders: exploring, identifying, and evaluating issues affecting labor productivity; applying an appropriate leadership style; motivating the workforce; providing training and development; and implementing effective project management processes. By improving labor productivity, similar construction companies can complete construction projects faster and with lower construction costs. The implications for positive social change include the potential to lower construction costs and enable individuals with lower incomes in Doha, Qatar, to afford houses that they could not previously afford.
9

Sommerlicher Wärmeschutz im Zeichen des Klimawandels – Anpassungsplanung für Bürogebäude

Fahrion, Marc-Steffen 08 December 2015 (has links)
Seit Beginn der Industrialisierung ist ein starker Anstieg der anthropogenen Treibhausgaskonzentrationen in der Atmosphäre zu verzeichnen, der zu einer Veränderung des Klimas auf der Erde führt. Schon heute sind die Auswirkungen auf die Umwelt und zahlreiche Bereiche des täglichen Lebens zu beobachten. Diese werden sich mit fortschreitendem Klimawandel noch verstärken. Auch das Bauwesen muss sich auf die sich verändernden klimatischen Einwirkungen wie beispielsweise Sommerhitze, Überflutung, Starkregen, Hagel und Wind einstellen. Für keine der genannten klimatischen Einwirkungen ist das Änderungssignal in den Klimaprojektionen so eindeutig wie für die Sommerhitze. Aus diesem Grund wird der Handlungsbedarf beim sommerlichen Wärmeschutz als besonders hoch eingeschätzt. In den westlichen Industriestaaten halten sich Erwachsene während des Sommers circa 80 % der Zeit in Innenräumen auf. Deshalb ist das Innenraumklima von entscheidender Bedeutung für die Behaglichkeit, die geistige Leistungsfähigkeit und die Gesundheit des Menschen. Wie sich der Klimawandel auf die gebaute Umwelt in Deutschland auswirkt, ist weitestgehend unerforscht. Es ist zu klären, ob nur einzelne baukonstruktive Details, die heutigen Bemessungsregeln oder sogar grundsätzliche Entwurfsprinzipien für Gebäude überdacht werden müssen. Das Ziel der Arbeit ist, eine Untersuchungsmethodik zu entwickeln, mit der die Auswirkungen des bereits beobachteten und des zu erwartenden Klimawandels auf den sommerlichen Wärmeschutz bestehender Bürogebäude beurteilt werden können. Erst dadurch lässt sich ein etwaiger Handlungsbedarf objektiv feststellen und begründen. Ein weiteres wesentliches Ziel besteht darin, beispielhafte Anpassungsmaßnahmen in Abhängigkeit der jeweiligen Baukonstruktion zu entwickeln, mit denen auch in Zukunft die sommerliche Behaglichkeit in bestehenden Bürogebäuden sichergestellt werden kann. Von besonderem Interesse ist dabei die Frage, ob baukonstruktive Maßnahmen allein in Zukunft ausreichen können oder ob zusätzlich anlagentechnische Lösungen zur technischen Kühlung unumgänglich werden. Die entwickelten Anpassungsmaßnahmen sollen die Grundlage für Gebäudekonzepte und Fassadenkonstruktionen sein, welche auch bei fortschreitendem Klimawandel die Anforderungen an die Behaglichkeit und den sommerlichen Wärmeschutz erfüllen. Des Weiteren soll eine Methode zur Bewertung der Wirtschaftlichkeit von Klimaanpassungsmaßnahmen aufgezeigt werden. Um untersuchen zu können, inwieweit die Verletzbarkeit infolge zunehmender Sommerhitze und der entsprechende Anpassungsbedarf von der Baukonstruktion abhängen, wurden drei Bürogebäude unterschiedlicher Baualtersstufen ausgewählt und mittels dynamisch-thermischer Gebäudesimulation analysiert. Die dynamisch-thermische Gebäudesimulation ist aktuell die detaillierteste Methode zur Beurteilung des sommerlichen Wärmeschutzes. Nur mit ihr können komplexe Gebäudekonzepte oder automatisierte Systeme ausreichend genau nachgebildet werden. Zur Abbildung des bereits stattgefundenen und des projizierten Klimawandels wurden fünf Klimadatensätze verwendet, mit denen der Klimawandel von der Mitte des 20. Jahrhunderts bis zum Ende des 21. Jahrhunderts dargestellt werden kann. Die Schwachpunkte der drei untersuchten Gebäude wurden analysiert und darauf aufbauend detaillierte Anpassungsvorschläge ausgearbeitet und wiederum über Simulationen bewertet. Umfangreiche Detailzeichnungen zu den angepassten Gebäudekonzepten und Fassadenkonstruktionen sollen eine Umsetzung der Ergebnisse in die Praxis erleichtern. Es werden Möglichkeiten aufgezeigt, den durch diese Maßnahmen erzielten Nutzen in Geldeinheiten zu bewerten. Dadurch können Klimaanpassungsmaßnahmen einer Wirtschaftlichkeitsbetrachtung über Investitionsrechenverfahren zugeführt werden. / Since the beginning of industrialization, a large increase of anthropogenic greenhouse gas concentrations in the atmosphere has been detected. This increase is the main cause for the observed climate change. The impacts of climate change on the environment and numerous aspects of human lives have been visible and will become more and more threatening with ongoing climate change. Civil engineering has to deal with changing climate-related hazards such as summer heat, flooding, torrential rain, hail and storm. For none of the mentioned climatic impacts on buildings, the climate change signal is as unambiguous and robust as for summer heat. Thus, actions to protect from summer overheating are highly required. During summer, adults in the Western industrialized states spend about 80 % of their time indoors. Therefore, indoor climate is of essential importance for comfort, mental performance and human health. The impacts of climate change on the built environment in Germany are rarely investigated. It has to be determined whether the building construction details, current design regulations or the design principles have to be revised. This thesis aims to develop a research methodology, which evaluates the impacts of the observed and expected climate change on the protection against summer overheating of existing office buildings. Only thus a possible need for action can be objectively determined and justified. Another major objective is the development of exemplary adaptation measures for various building construction types to ensure the comfort in existing office buildings during summer. Of particular interest is the question if it will be sufficient in the future to use only passive measures or if it will be unavoidable to install technical cooling capacities. The developed adaptation measures should be the basis for building concepts and façade constructions that are able to guarantee high comfort and an improved protection against summer overheating. Furthermore, a method to evaluate the economic efficiency of adaptation measures is demonstrated. To investigate the relationship between building construction and vulnerability, three buildings of different construction year categories have been analyzed using dynamic thermal building simulations. At present, the dynamic thermal building simulation is the most detailed method for evaluating the protection against summer overheating. This is the only method which is able to reproduce complex building concepts and automated systems in sufficient detail. In order to demonstrate the impacts of the observed and projected climate change on buildings between the middle of the 20th century and the end of the 21st century, five climate datasets have been applied. The weak points of the three investigated buildings have been analyzed. Based on this, detailed adaptation measures have been developed and evaluated by thermal building simulations. Comprehensive drawings, which show the adapted building concepts and façade details, will facilitate the application in practice. Different possibilities are demonstrated to express the achieved benefit from the adaptation measures in monetary units. Therefore, adaptation measures can be assessed by investment calculations.

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