(1 - 14 of 14)
document
Sousa, H. (author), Slobbe, A. (author), Courage, W. (author)
Over the past century, European countries have developed mature and extensive transportation infrastructure networks, in which bridges play a vital role. Their design is increasingly influenced by life-cycle multi-objective performance criteria, which comprise economic, environmental and social factors. Hence, the emphasis has shifted from new...
conference paper 2019
document
Slobbe, A. (author), Allaix, D.L. (author), Courage, W. (author), van Vliet, A.B. (author)
The accuracy of predictions of structural behavior by finite element analysis strongly depends on the formulation of the numerical model. Depending on the problem at hand, the analyst has to make a number of choices, which influence the numerical results to a greater or lesser extent. For complex cases, e.g. existing reinforced concrete...
conference paper 2017
document
Abspoel, L.M. (author), Courage, W.M.G. (author), van den Broeck, W. (author), Kruse, H. (author)
Pipeline networks for gas and water are the lifelines of our society. Their presence and correct functioning translates in benefits and any disruption, malfunctioning or ruptures represent hazards for the community. Most pipelines are buried, which impedes direct monitoring of the structural reliability of the networks. The behavior of the soil...
conference paper 2017
document
Kosgodagan, A. (author), Morales-Napoles, O. (author), Maljaars, J. (author), Courage, W.M.G. (author)
Markov-based models for predicting deterioration for civil infrastructures are widely recognized as suitable tools addressing this mechanism. The objective of this paper is to provide insights regarding a network of orthotropic steel bridges in terms of degradation. Consequently, a model combining a dynamic Bayesian network and a Markov chain is...
conference paper 2016
document
Attema, T. (author), Courage, W.M.G. (author), Maljaars, J. (author), van Meerveld, H. (author), Paulissen, J.H. (author), Pijpers, R.J.M. (author), Slobbe, A.T. (author)
This paper presents a monitoring and modelling methodology to assess the current and future conditions of steel bridges subjected to fatigue cracking. Steel bridges are subjected to fatigue cracking as a result of fluctuating stresses caused by the crossing of heavy vehicles. Specifically for orthotropic steel bridge decks, fatigue cracking is...
conference paper 2015
document
Vervuurt, A. (author), Courage, W. (author), Steenbergen, R. (author)
For the assessment of the in situ compressive strength in structures and precast concrete components EN 13791 applies. Among others, this standard may be adopted when doubt arises about the compressive strength in the structure. However, for assessing the structural safety of existing structures of many years of age, the method given in EN 13791...
conference paper 2013
document
Esposito, G. (author), Courage, W.M.G. (author), van Foeken, R.J. (author)
The Statnamic method is an increasingly popular technique to carry out loading tests on cast in-situ piles. The method bas proved to be a cost-effective alternative to a static loading test. As-sociated to Unloading Point Method (UPM) and to automatie signal matching, the Statnamic testing technique provides an estimation of the static load...
conference paper 2000
document
Pandohi-Mishre, P.R. (author), Courage, W.M.G. (author), Gresnigt, A.M. (author)
The behaviour under earthquake loading of an LNG (liquefied natura) gas)-tank with a diameter of 75 meters and a height of 32 meters has been studied analytically and numerically. Design rules for achieving a safe design, provided by Eurocode 8 'Design of structures for earthquake resistance - Part 4 : silos, tanks and pipelines' (ENV 1998-4)...
conference paper 2000
document
van Foeken, R.J. (author), Middendorp, P. (author), Courage, W.M.G. (author), TNO Bouw (author)
The Unloading Point Method (UPM) has become the standard method of analy-sis for Statnamic testing. For long piles with wave numbers (Nw) less than 12, however, the method becomes less accurate because of stress wave phenomena (concrete piles longer than 35 m or steel piles longer than 40 m). In these cases, the signal matching stress wave...
conference paper 1998
document
Courage, W.M.G. (author), Soetens, F. (author), Noordzij, R. (author), Drabbels, J. (author), TNO Bouw (author)
This paper deals with the design and manufacturing of aluminium overhead sign structures. These gantries are built up by using two X-shaped column frames connected by a triangular space frame girder. Slenderness and a low solidity ratio were objectives in the architectonic design. Braces and main chords of the triangular space frame are made of...
conference paper 1998
document
Courage, W.M.G. (author), van Foeken, R.J. (author)
so-called direct and indirect methods. The direct methods (CASE method, TNO method) yield straight forward real time results. The more accurate indirect methods (CAPWAP, TNOWAVE) require signal matching. As a result the load displacement diagram is obtained and the bearing capacity can be predicted. The interpretation with the indirect methods...
conference paper 1996
document
Waarts, P.H. (author), Courage, W.M.G. (author), TNO Bouw (author)
conference paper 1996
document
van Staalduinen, P.C. (author), Courage, W.M.G. (author)
The paper presents a simplified analytical method for calculating the stress ranges in light weight slender structures due to wind loading. The background and assumptions of the method have been explained as well as the derivation of the relevant formula. The application of the simplified method on a traffic light supporting structure and on a...
conference paper 1996
document
Tomà, T. (author), Courage, W. (author), TNO Bouw (author)
European Recommendations exist which provide calculation rules to determine the strength and stiffness of sandwich panels composed of two metal faces with a foam in between. In case of openings in such panels (e.g. for windows) an influence will appear with regard to the stiffness and loadbearing capacity. At the institute TNO Building and...
conference paper 1996
(1 - 14 of 14)