Browsing NTNU Open by Author "Kohler, Jochen"
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3D Scanning of Corroded Mooring Chain
Hoel, Alexander (Master thesis, 2016)This thesis is concerned with mooring line failure and 3D representations of corroded chain surfaces. Equipment for making such representations have been evaluated through a feasibility study carried out at NTNU. An ATOS ... -
A framework for estimating the implicit safety level of existing design codes
Baravalle, Michele; Kohler, Jochen (Chapter, 2017)Target safety levels ( t ) are key elements for reliability-based design and calibration of design codes. They are derived by monetary optimization or from existing codes. The current article discusses these two approaches ... -
A probabilistic-based approach for predicting mould growth in timber building envelopes: Comparison of three mould models
Gradeci, Klodian; Labonnote, Nathalie; Time, Berit; Kohler, Jochen (Journal article; Peer reviewed, 2017)This paper applies a probabilistic-based approach as a methodology to analyze and compare the mould growth computations’ results from three different mould models. This approach, instead of the conventional deterministic ... -
A probabilistic-based methodology for predicting mould growth in façade constructions
Gradeci, Klodian; Labonnote, Nathalie; Time, Berit; Kohler, Jochen (Journal article; Peer reviewed, 2017)Predicting mould growth on façade constructions during design is important for preventing financial loss, and ensuring a healthy and comfortable indoor environment. Uncertainties in predicting mould growth are related to ... -
A quantification of the modelling uncertainty of non-linear finite element analyses of large concrete structures
Engen, Morten; Hendriks, Max; Kohler, Jochen; Øverli, Jan Arve; Åldstedt, Erik (Journal article; Peer reviewed, 2017)In order to make non-linear finite element analyses applicable during assessment of the global resistance of large concrete structures, there is need for a solution strategy with a low modelling uncertainty. A solution ... -
Analysis of fatigue test data of retrieved mooring chain links subject to pitting corrosion
Mendoza Espinosa, Jorge; Haagensen, Per Jahn; Kohler, Jochen (Peer reviewed; Journal article, 2021)Fatigue is one of the main failure mechanisms of catenary type mooring lines. Fatigue resistance is affected by a large number of factors. In this paper, the effect of pitting corrosion on the fatigue resistance of mooring ... -
Application of European design principles to cross laminated timber
Fink, Gerhard; Kohler, Jochen; Brandner, Reinhard (Journal article; Peer reviewed, 2018)The design of cross laminated timber (CLT) structures is not included in the current version of European structural timber design standards of EN 1995 (Eurocode 5, EC 5). Due to the increasing importance of CLT, in different ... -
Assessment of a semi-probabilistic safety concept for reinforced concrete columns using non-linear finite element analyses
Lynnebakken, Morten; Normann, Håkon Hammer (Master thesis, 2018)This thesis assesses the reliability of methods for slender concrete column design, including Non-Linear Finite Element Analysis (NLFEA). The applicability of the Eurocode in slender column design is investigated, and the ... -
Assessment of the failure behaviour and reliability of timber connections with multiple dowel-type fasteners
Jockwer, Robert; Fink, Gerhard; Kohler, Jochen (Journal article; Peer reviewed, 2018)Connections with metal dowel-type fasteners are important details in timber construction, connecting single members and elements to larger structures. The load-carrying capacity can be described by different failure modes ... -
Calibration of simplified safety formats for structural timber design
Baravalle, Michele; Mikoschek, Michael; Colling, François; Kohler, Jochen (Journal article; Peer reviewed, 2017)A framework for calibrating the reliability elements in simplified semi-probabilistic design safety formats is presented. The objective of calibration is to minimize the increase of construction costs, compared to the ... -
Cost-Optimization of the Safety Factor for Design of Mooring Lines with Bayesian Networks
Rindal, Eivind (Master thesis, 2018)The structural integrity of mooring lines is critical for the safety of offshore facilities. In recent years, concerns have been raised in the offshore industry about the high failure rates compared to the design expectations, ... -
Embodied greenhouse gas emissions in structural materials for the German residential building stock - Quantification and mitigation scenarios
Hingorani, Ramon; Dittrich, Nils Maximilian; Kohler, Jochen; Mueller, Daniel Beat (Peer reviewed; Journal article, 2023)Embodied emissions in construction materials make a relevant contribution to carbon emissions worldwide. While this has been broadly recognised, only little attention has been paid to the role of load-bearing structures ... -
Evaluating highly insulated walls to withstand biodeterioration: A probabilistic-based methodology
Gradeci, Klodian; Berardi, Umberto; Time, Berit; Kohler, Jochen (Journal article; Peer reviewed, 2018)The performance to withstand biodeterioration of highly insulated walls is evaluated by applying a probabilistic-based methodology that accounts for the involved uncertainties and investigates their significance. Three ... -
Generic Framework for Stochastic Modeling of Reinforced Concrete Deterioration Caused by Corrosion
Hackl, Jürgen (Master thesis, 2013)Reinforced concrete structures constitute an important fraction of the building infrastructure. This infrastructure is aging and a large number of structures will exceed the prescribed service period in the next decades. ... -
Mould Models Applicable to Wood-Based Materials – A Generic Framework
Gradeci, Klodian; Labonnote, Nathalie; Kohler, Jochen; Time, Berit (Journal article; Peer reviewed, 2017)This paper systematically reviews mould models that are applicable to wood-based materials. Both similarities and differences are observed with respect to governing factors and their interrelations, methodology, experimental ... -
On the probabilistic representation of the wind climate for calibration of structural design standards
Baravalle, Michele; Kohler, Jochen (Journal article; Peer reviewed, 2018)The article presents a contribution to the current debate on the probabilistic representation of the wind speed extremes for calibration of the partial safety factor covering wind action. The requirements for the probabilistic ... -
Predictive strength of ready-mixed concrete: Exemplified using data from the Norwegian market
Engen, Morten; Hendriks, Max; Kohler, Jochen; Øverli, Jan Arve; Åldstedt, Erik; Mørtsell, Ernst; Sæter, Øystein; Vigre, R (Journal article; Peer reviewed, 2018)A hierarchical model for the variability of material properties in ready‐mixed concrete is formulated. The model distinguishes between variation on the batch, recipe, plant, producer, durability class, strength class, and ... -
Probabilistic Methods in Management and Inspection of Buried Steel Pipe Bridges
Solheim, Henrik (Master thesis, 2018)Management and inspection of existing bridges involve decision making. Loading, resistance and deterioration of bridges are uncertain. Inspection reduces uncertainty, but the uncertainty is usually not considered on a ... -
Reassessment of the integrity of a partially failed glulam structure
Volnes, Christoffer (Master thesis, 2014)Background: This study will seek to determine if the partial failure ofa glulam roof in 2011 was only due to a measured accidental overload of1,6kN/m^2 more than planned for in the design, and also whether the sur-viving ... -
Risk-based Design of an Offshore Wind Turbine using VoI Analysis
Mendoza Espinosa, Jorge; Kohler, Jochen (Chapter, 2019)Monopiles are the most common solution for supporting wind turbines in offshore conditions. At the design phase of a monopile, a frequency check is to be performed to avoid the resonance hazard with the 1P and 3P excitation, ...