Blar i Institutt for konstruksjonsteknikk på tittel
Viser treff 2314-2333 av 2470
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Thickness Mediated Morphology Evolution in Sub-10-nm Metal Film Deposition: Implications for Non-destructive Testing
(Peer reviewed; Journal article, 2023)Thickness in sub-10-nm metal film deposition is a seldomly explored parameter that can influence not only the film mechanical properties but also the surface functional characteristics. In this study, we designed bilayer ... -
Thin steel plates exposed to combined ballistic impact and partially confined airblast loading
(Peer reviewed; Journal article, 2023)Pre-formed defects created by high-velocity impact have the potential to reduce the structural integrity of lightweight, flexible structures. This study evaluates the effect of complex, partially confined detonations on ... -
Three dimensional shape analysis of concrete aggregate fines produced by VSI crushing
(Journal article; Peer reviewed, 2016)We studied the 3-D shape of concrete aggregate fines with particle sizes between 3 µm and 250 µm produced by high-speed vertical shaft impact (VSI) crushing of rock types from 10 different quarries representing a wide range ... -
Through Process Modelling of Welded Aluminium Structures
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:325, Doctoral thesis, 2013)This thesis aims to evaluate the accuracy, efficiency and robustness of a ‘Through Process Modelling’ concept tailored for analysis of the structural behaviour of welded aluminium structures. In short, the modelling concept ... -
Tidsavhengig momentomlagring i kontinuerlige betongelementbruer
(Master thesis, 2020)Våren 2019 gav Statens vegvesen ut ny håndbok for standardisering av betongelementbruer med ett spenn på opptil 40 meters lengde. Håndboken gir ingen standardisering av flerfeltsbruer utover muligheten for å utvide den ... -
Tidsavhengig momentomlagring i kontinuerlige betongelementbruer
(Master thesis, 2020)Våren 2019 gav Statens vegvesen ut ny håndbok for standardisering av betongelementbruer med ett spenn på opptil 40 meters lengde. Håndboken gir ingen standardisering av flerfeltsbruer utover muligheten for å utvide den ... -
Tidsavhengig respons av plastmaterialer
(Master thesis, 2011)Et stort antall laboratorieforsøk er gjennomført med materialene HDPE og PVC for å studere den tidsavhengige responsen. Forsøkene inkluderer monotont strekk og trykk, relaksasjon og kryp, strekk med avlastninger og syklisk ... -
Tillatt dordiameter ved bøying av armering
(Master thesis, 2010)I forbindelse med utviklingen av Eurokode 2 har det oppstått en diskusjon rundt kravene til dordiameter. En ny formulering i Eurokoden fører til at det ikke er nødvendig å kontrollere betongspenningene som oppstår innenfor ... -
Tilstandsvurdering av bruer i det norske jernbanenettet: Litteraturstudie, lastmodeller, konstruksjonsmodellering og analyse
(Master thesis, 2014)Denne masteroppgaven tar sikte på å presentere status i det norske jernbanenettet gjennom å undersøke tilstanden til eksisterende jernbanebruer/infrastruktur.Første del av rapporten gir en introduksjon til den generelle ... -
Tilstandsvurdering og beregning av skadd betongbru: Nerlandsøybrua
(Master thesis, 2015)Denne oppgaven vurderer tilstanden og beregner kapasiteten til Nerlandsøybrua. Brua er beregnet for både prosjektert tilstand og skadd tilstand, hvor skadeomfanget som fremkom av feltundersøkelser er blitt tatt i ... -
Time and frequency domain calculations of the wind induced dynamic response of the Hålogaland Bridge
(Master thesis, 2023)I bruteknikk er det viktig å forstå hvordan vind påvirker bruer for å kunne lage trygge bruer. Det er spesielt viktig for lange bruer ettersom de er mer utsatt for vindindusert dynamisk respons. I denne oppgaven har ... -
Time Domain Modelling of Frequency Dependent Wind and Wave Forces on a Three-Span Suspension Bridge With Two Floating Pylons Using State Space Models
(Chapter, 2017)Floating suspension bridges, one of several new designs to make it possible to cross deep and wide fjords, consist of three spans and supported by two tension leg platforms and two fixed traditional concrete pylons. Geometric ... -
Time domain simulations of wind- and wave-induced load effects on a three-span suspension bridge with two floating pylons
(Journal article, 2018)The construction of a three-span suspension bridge with two floating pylons is currently being considered for crossing the 5-km-wide and 550-m-deep Bjørnafjorden in Norway. The bridge design represents a novel concept that ... -
Time-frequency analysis of suspension bridge response for identification of vortex induced vibrations
(Chapter, 2018)It is increasingly more frequent to install continuous monitoring systems on large bridges around the world. These systems are then used to monitor the loading and structural behavior, which generally translates into ... -
Time-variant reliability of dynamic systems by importance sampling and probabilistic analysis of ice loads
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:139, Doctoral thesis, 2006)The main objective of this thesis is to develop an efficient simulation technique to estimate the failure probability of time-dependent systems, whose state is expressed as a solution of Itô stochastic differential ... -
Topography studies of concrete abraded with ice
(Journal article; Peer reviewed, 2019)Topography studies of concrete-ice abrasion were made to proceed in our understanding of the mechanisms of concrete wear by ice on Arctic offshore structures. The effects on various initial surfaces of a B75 normal-weight ... -
Topology and polarity of dislocation cores dictate the strength of monolayer MoS2
(Journal article; Peer reviewed, 2019)In contrast to homoelemental graphene showing common dislocation dipole with pentagon-heptagon (5|7) core, heteroelemental MoS2 is observed to contain diverse dislocation cores that tune the chemical and physical properties. ... -
Toward identifying the ASR-induced stresses from displacement measurements and crack observations—Demonstration on a beam bridge in Norway
(Peer reviewed; Journal article, 2022)Alkali–silica reaction (ASR) in concrete causes expansion and degradation of the material, which might give adverse structural consequences. From the structural engineer point view, the greatest concern is if ASR leads to ... -
Towards a better understanding of the ultimate behaviour of lightweight aggregate concrete in compression and bending
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:123, Doctoral thesis, 2012)Ordinary normalweight concrete has a low strength-to-weight ratio compared to steel. This may prevent the use of concrete for the construction of tall buildings, floating structures, longspan bridges, etc. One way of ... -
Towards a better understanding of the ultimate behaviour of LWAC in compression and bending
(Journal article; Peer reviewed, 2017)There is a general scepticism regarding the use of lightweight aggregate concrete (LWAC) for structural applications. This concern is attached to the more brittle post-peak material behaviour and smoother crack surfaces ...