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3066 Uppsatser om Mechanics for resilient construction element - Sida 51 av 205
Passivhus, detaljutformning och dess köldbryggor
Along with rising energy prices and increasing awareness of environmental issues, the criteria for buildings energy performance have been sharpened through the years. Today, ?passive house? and ?low energy house? are commonly used phrases in the construction industry and is expected to become increasingly common in the future.For houses with well-insulated building envelope the importance of well constructed details increases when minimizing the heat losses. Examples of these details are floor-wall junction and window openings in the wall. In such connections thermal bridges occur, which means that heat more easily is transported out of the building, compared to the rest of the building envelope.This report deals with detail solutions around windows and a comparison between a traditional slab and a foundation from Koljern consisting of foam glass.
Försöksmetod för automatisering av kvalitetssäkring av SKB
Within all industries, there is a change in working time required; this also includes the construction sector. However, the way construction sectors are differentiated is by not having been given the opportunity to be practiced or tested. The aim of this thesis that we have done in collaboration with the Concrete Industry was to investigate the possibility of developing an automated method for quality assurance of SKB at the site. The idea is to make the O-funnel to be more utilized and therefore ensuring that the appropriate concrete quality is provided which eventually would lead to a better development in the production process.The project has involved theoretical work and laboratory experiments. The theoretical work gave us a good foundation at the beginning of the project. After gathering the information and material, the laboratory experiments began by SCC in their laboratory in Hammarby. The collected data from the various laboratory tests formed the foundation for trying to relate measurements for consistency of SCC with each other and therefore find out how measurements from O-funnel varies with different concrete mixtures.
Förbättring av U-värde i träkonstruktion för fönster med Aerogel
When constructing a building, a number of aspects must be harmonized in order for it to fulfill requirements ? a building must fulfill requirements such a load-bearing, conservation of energy and a good indoor environment by means of, among other things, moisture proofing .Moisture problems in buildings can affect health negatively. As we are increasingly staying in indoors, demands on a good indoor environment are higher.This work starts with examining moisture problems in slab-on-ground solutions, and then links the various scenarios to moisture problems in a concrete slab of a real building. The building with moisture problems is located in Årby by in Borlänge and moisture damage was found in the slab at an apartment adjoining wall.By reviewing literature written within the field of moisture problem, making hand calculations and modeling in the program Comsol Multiphysics, judgments are made to find explanations as to why the rise of moisture occurred in the building in Årby by.Generally, the following guidelines may be used to reduce the risk of moisture problems in slab-on-ground constructions:Drying of construction moisture before laying the floor material.Using draining layer beneath the slab, to prevent capillary suction.Using insulation under the slab, partly for comfort and to establish the temperature difference between the ground and the concrete slab.Avoid direct contact between the wood and concrete, due to degradation and fouling smells that normally occurs.If necessary, use additional vapor barrier.In addition to the above, there are various methods for moisture-proof and moisture-monitoring by design or by the method ByggaF suited for the entire construction process various events..
Relationen mellan utformningen av digitala bibliotek och användarnas behov. En intervjustudie vid Göteborgs universitets digitala bibliotek.
The aim of this thesis is to define digital library, and to investigate a relation between the construction of a digital library and user needs. The main questions to be answered are: 1 What criteria was used when constructing a digital library, particularly concerning issues like purpose, function, design, supply, services, resources and future development of the digital library? 2 How do the digital library system designers and system builders criteria correspond with those of postgraduate researchers? And what factors affect the use? A digital library is an enterprise that gives access to information stored digitally and directly available on the net. The crucial is that the enterprise has a control over collection of information and responsibility to make it available to a defined group of users. In order to investigate the relation between the construction of the digital library and user needs, I have interviewed five key people involved with the work with the digital library and twenty postgraduate researchers from the Gothenburg University.
Klistret i klustret : En undersökande studie av ansamlingen av GIS-relaterad verksamhet i Gävleregionen
Recent years there has been discussed how the critical situation in the housing market threatens the Stockholm region's growth. The thesis objective is to examine whether there is a scientific link between the lack of housing supply and growth. The thesis also intends to identify solutions for increased housing construction, for instance by examining the conditions for a greater regional perspective and influence on the region's housing supply. The thesis empirical study is based on semi-structured interviews with representatives from the Government, municipalities and the housing industry.In Sweden, research on the relationship between housing shortages and growth has not been conducted to that extent it can be said to exist scientific evidence regarding the growth threat. However, in Britain and the U.S, empirical studies show that a lack of housing supply has hindered growth through negative impact on countries' gross domestic product.
Icke-standardanalys. En introduktion och en jämförande studie med tillämpningar inom komplexanalys och finansiell matematik.
I den ha?r studien implementeras en finita elementmetod fo?r att lo?sa optimala styrpro- blem i programvaran FEniCS. Den finita elementmetod som anva?nds a?r ha?mtad fra?n Karin Krafts doktorsavhandling Adaptive Finite Element Methods for Optimal Control Problems [2].Optimala styrproblem behandlar styrning av dynamiska system. Systemen beskrivs av en tillsta?ndsekvation och ma?let a?r att styra systemet mot ett visst tillsta?nd till en sa? la?g kostnad som mo?jligt.
Virkesgripen, ett geometriskt verktyg :
The aim of this study was to investigate and describe conceptions that been used when people talks about grapples and to put together parameters that the customers sees as important when they chose a grapple from Hultdins.
Every year Hultdins manufacturer and sells about 3500 grapples around the world. With so many users its difficult to oblige everyone. To get an apprehension of what kind of grapple the operators wanted a formula with 18 questions was made. For the interviews 20 forestmachineoperators were choicest who had experience from Hultdins grapples, a lot of them also had experience from other grappleproducers and constructions.
The study showed that it is the durability the users give priority to.
Dynamiska egenskaper hos håldäcksbjälklag belastade med gångtrafik
Concrete floors have traditionally had no problems with annoying vibrations. However with the demand for larger spans the floors need to be made more slender with a higher degree of utilization and lower mass. Therefore new floors may have problems with vibration serviceability. This thesis studies the vibration characteristics of hollow core slabs. The analysis was made in the finite element program Ansys. The hollow core slab was subjected to a varying force simulating one person walking across the slab.
Relationen mellan användare och användargränssnitt till mobiltelefon
Problem: Hur kan mobiltelefoners användargränssnitt användas för att kommunicera emotionella eller psykologiska signaler till användaren? Syfte: Syftet med uppsatsen är att skapa förståelse för vilka faktorer i användargränssnittet till en mobiltelefon som generar en emotionell eller psykologisk reaktion hos användaren. Metod: Vi har samlat relevant teori från främst informatik och psykologi. Datainsamlingen skedde genom tio personliga intervjuer med mobiltelefonanvändare. Analysen av empirin, i relation till teorin, gjordes med så kallad kodning.
Opera i Stockholm, Galärvarvet
Quality is the key to a well executed product or service. The construction industry hasn?t highlighted the quality in recent times which have contributed to the construction industry receiving much criticism in the field. The public sees it as an offhanded industry where errors and delays are common.The reason for this is considered to be primarily the lack of time, constant pressure to reduce costs and skills and the ability to communicate between the parties about what the correct quality really means. The industry has begun to realize that it must start setting clearer standards and that there are great opportunities for improvement.This report will give Peab an opportunity to develop their quality work.
Cirkushallen i Alby : Cirkushall
Projektet är en ombyggnation. En förvaringslada från 70-talet konverterad till ett kreativitetshus, nu vidare omarbetat till en lokal för endast Cirkus Cirkör, deras huvudkontor.Följande byggkomponenter återanvänds:Bärande stomme: betong.Tak: betong.Stabiliserande element: lättbetong.Insidan blåses ut och förnyas till ett stort rum, uppdelat efter behov och funktion.Rörliga väggar: glas.Rörliga väggar: tygFasta ickebärande innerväggar: trä.Bjälklag: trä..
Att verka inom ramarna : riskhanteringsramverk samt Enterprise Risk Management
Den omgivning organisationer idag ställs inför blir alltmer krävande. En allt hårdare reglering, hot från nya teknologier, samt de företagsskandaler som härjat i media, har lett till att dagens organisationer ser på risk på ett nytt sätt. En utveckling som nyligen skett inom riskhantering är Enterprise Risk Management (ERM). Denna uppsats undersöker den roll ERM, och i synnerhet ett nyutvecklat ramverk som används för att implementera ERM, har i en organisations riskarbete. Ramverket, COSO:s ERM, består av åtta kontrollpunkter som enligt ramverket bör finnas i en organisation som utför sitt ERM-arbete på ett korrekt sätt.Studiens syfte är att undersöka likheter och olikheter mellan en organisations riskarbete och COSO:s riskhanteringsramverk samt den teoribildning som skapats kring Enterprise Risk Management.
Tales from under the Candy Cane Tree: Diktbok genom storytelling
Jag bestämde mig för att skapa en diktsamling för mina dikter som jag skrivit under en längre tid. Det jag vill undersöka är hur man kan använda sig av Storytelling för att skapa en helhet för en diktbok. Jag ville införa detta element i både innehållet i dikterna, vilken plats de skulle få i boken samt få in det i formgivningen. Jag tog och använde mig av litteratur för vägledning inom hur jag skulle få fram den historia som jag hade att berätta. Resultatet blev en komplett diktbok som med formgivning och placering av dikterna blev en bok som berättade en historia för sig själv i sin helhet..
Discourse analysis of the swedish integration politics
This essay is a discourse analysis of the integration politics of the different parties
in the Swedish parliament and the non-parliamentary party ?the Swedish
Democrats?, as it is presented on their respective web pages. The overall purpose
is to problematize and shed a light on how the current discourse(s) about
integration are constituted. Also of interest is how these construct our knowledge
and experience of the phenomena. We furthermore want to illustrate the social
consequences of such discourses on the construction and organization of identities
and groups, and, as a result, the courses of action that becomes available.
Spelutveckling för Facebook ? från koncept till produkt
Abstrakt Under vårt kandidatarbete arbetade vi under 20 veckor med att utveckla ett webbaserat spel riktat mot Facebook. Vi använde Agile/Scrum som projektmetod för vårt arbete och förändrade metoden och utvecklade verkyg för att effektivisera den för vårt syfte. Vi kom fram till att det är svårt att göra ett socialt spel och att det viktigaste i produktionen är att se till att det finns en tydlig koppling mellan spelarnas interaktion med varandra och den grundläggande spelmekaniken. Vi tappade fokus under utvecklingen och lärde oss den hårda vägen vikten av att planera realistiskt och börja ifrån grunden när man utvecklar ett spel. Spelet vi skapade använder sig av slumpässigt genererad terräng, är skrivet i JavaScript och utspelar sig i en viktoriansk miljö.