Search results for "Building technology"
showing 10 items of 10 documents
Sammenhengen mellomstatisk og dynamisk utmatting i ensrettede fiberkompositter Tester og analyse av endring for dynamisk regresjonskurve av ensretted…
2015
Masteroppgave bygg- Universitetet i Agder, 2015 I Det Norske Veritas (DNV) sin standard DNV-OS-C501 foreligger det retninglinjer for design, dimensjonering og verifisering av komposittstrukturer rettet spesielt mot offshore. Standarden gir internasjonalt aksepterte retningslinjer for sikker design ved å definere minstekrav for design, materialer, fabrikkering og installasjon av lastbærende fiberkompositter. I temaene statisk og dynamisk utmatting i standarden sies det at statisk styrke er uforandret under dynamisk utmatting for de fleste ensrettede glass- og karbonfibre. Problemområdet oppgaven tar for seg er sammenhengen mellom statisk utmatting og stigningstallet til regresjonskurven til …
Discrete-time multioverlapping controller design for structural vibration control of tall buildings under seismic excitation
2012
Published version of an article from the journal: Mathematical Problems in Engineering. Also available from the publisher:http://dx.doi.org/10.1155/2012/636878 In this paper, a computationally effective strategy to obtain multioverlapping controllers via the Inclusion Principle is applied to design discrete-time state-feedback multioverlapping LQR con- trollers for seismic protection of tall buildings. To compute the corresponding control actions, the proposed semidecentralized controllers only require state information from neighboring stories. This particular configuration of information exchange allows introducing a dramatic reduction in the transmission range required for a wireless imp…
Seismiske analysemetoder - fra tverrkraft til modal analyse En sammenligning av fundamentkrefter
2015
Masteroppgave bygg- Universitetet i Agder, 2015 This is a master's thesis written in the topic of civil engineering science at the University of Agder in the Institute of Engineering science located in Grimstad. The thesis is a study of results from three different seismic analysis of a thirteen story building, a six story building and of a constellation of these two buildings on a combined basement. The collected results is gathered from analysis according to the requirements given in the Eurocode 8. The purpose of this thesis is to determine the differences in baseshear forces from the lateral force method, an equivalent model and from a detailed modal analysis of the buildings. The main …
Parametric study and optimization of turret and mooring line connections Detailed analyses of the connecting link including advanced numerical modeli…
2015
Masteroppgave bygg- Universitetet i Agder, 2015 (Konfidensiell til/confidential until 01.07.2020)
Normal pressures and frictional tractions on shallow conical hopper walls after concentric filling: Predictions and experiments
2013
Author's version of an article in the journal: Chemical Engineering Science. Also available from the publisher at: http://dx.doi.org/10.1016/j.ces.2012.11.028 A silo with a shallow hopper is designed to achieve the required silo capacity when the headroom available is limited, provided that the issue of segregation of stored particulate solids is not a problem. Several analytical models have been proposed to try to predict the design loads for such shallow silo hoppers to guarantee their structural integrity. In this study, a novel finite element analysis has been conducted to explore the development of pressures and tractions on the wall of a full scale shallow hopper when it is filled wit…
En risikovurdering ved bruk av svalgang som rømningsvei : bruk av FDS til å undersøke brannsikkerheten ved fravikelser fra preaksepterte ytelser
2016
Masteroppgave bygg - Universitetet i Agder 2016 The purpose of this master thesis is to investigate the tenability limits on the egress path on an access balcony when not following all the given pre accepted solutions. The analysis construction deviates from some of the pre accepted solutions given for TEK10 to investigate if the fire safety level is satisfying. According to the standard NS 3901 Requirements for risk assessment of fire in construction works, a comparative qualitative analysis has been done by using FDS. The conditions that are analyzed is the time for critical temperature and heat radiation to occur where fire simulations in FDS has given the available safe egress time for …
ARCHITECTURE AND PHOTOVOLTAICS. Strategies, technologies and novel components for the building envelope
Il principale obiettivo della tesi ha riguardato lo studio di strategie e tecnologie per l’integrazione del fotovoltaico negli edifici, con particolare attenzione verso le tecnologie solari di terza generazione, e la successiva definizione di un componente multifunzionale innovativo per l’involucro edilizio integrato con Dye-sensitized Solar Cells (DSC). Nella prima parte del lavoro, la ricerca si è concentrata sull’analisi del mercato del Building Integrated Photovoltaics (BIPV), sottolineando differenze, limiti e potenzialità di ciascuna tecnologia fotovoltaica. Particolare attenzione, inoltre, è stata rivolta a un numero consistente di casi studio, ossia edifici di nuova costruzione o in…
Livsløpsvurdering og dimensjonering av stålog limtrebue i en nettverksbuebru
2016
Masteroppgave bygg - Universitetet i Agder 2016 This master thesis focuses on the design and life cycle assessment (LCA) of a network arch bridge. The arch is designed and compared by using two different materials, steel and gluelam. This study is carried out on the behalf of Statens vegvesen, Region øst, and serves as the graduate thesis for master degree in Civil Engineering at the University of Agder. The network arch bridge is part of E16 and is located at Oppstadåa. The bridge carries four lanes, which results in a 21 meters wide deck. The span of the bridge is 120 meters. Three different network arch bridges alternatives have been designed in this thesis. The original network arch bri…
Structural Vibration Control for a Class of Connected Multistructure Mechanical Systems
2012
Published version of an article from the journal: Mathematical Problems in Engineering. Also available from the publisher:http://dx.doi.org/10.1155/2012/942910 A mathematical model to compute the overall vibrational response of connected multistructure mechanical systems is presented. Using the proposed model, structural vibration control strategies for seismic protection of multibuilding systems can be efficiently designed. Particular attention is paid to the design of control configurations that combine passive interbuilding dampers with local feedback control systems implemented in the buildings. These hybrid active-passive control strategies possess the good properties of passive contro…
Utvikling av verdikjeden oppstrøms for Trebyggeriet AS
2003
Hovedoppgave i Industriell økonomi og informasjonsledelse, Høgskolen i Agder, Grimstad Vi har i denne oppgaven sett på muligheten til å utvikle verdikjeden oppstrøms for en produsent av trekonstruksjoner. Trebyggeriet AS er en nyetablert bedrift lokalisert på Kjetså i Evje og Hornnes kommune. I produksjonen benyttes en datastyrt pre-cut maskin til å forme trelasten. Dette er en teknologi som ikke har vært benyttet før i Norge, men som har utviklet seg over en 10 – 15 års periode i Mellom-Europa. For å oppnå en effektiv vareflyt og minimale mengder avkapp av materialene kreves det andre egenskaper ved leveransene enn det som er vanlig i Norge i dag. I Tyskland, hvor denne teknologien har vær…