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Steenbergen, R.D.J.M. (author), Vrouwenvelder, A.C.W.M. (author)
In de recent verschenen ontwerp-NPR 1998 wordt uitgegaan van een streefwaarde van de veiligheid van bouwwerken onder aardbevingsbelasting. Daarbij vormt de in Nederland gangbare streefwaarde voor het individueel risico de belangrijkste inputparameter. Op basis van de voorgestelde betrouwbaarheidsindices worden rekenwaarden afgeleid. Die spelen...
article 2015
document
Walraven, J. (author), Vrouwenvelder, A.C.W.M. (author)
Tot voor kort leefde Nederland mee met de gevolgen van aardbevingen in de wereld, in de veronderstelling dat dit ver van ons bed was. Door de recente aardschokken in Groningen zijn in ons land andere ideeën ontstaan over de invloed van aardbevingen op de gebouwde omgeving. In dit artikel worden de herkomst en de karakteristieken van de Groninger...
article 2015
document
Geurts, C.P.W. (author), Sanchez Gomez, S. (author), van Bentum, C.A. (author), van Dijk, S.A. (author)
Een model ontwikkelen waarmee op basis van eigenschappen van de verschillende onderdelen in een gebouw de demping kan wworden voorspeld, is het doel van een recent gestart (promotie-)onderzoek aan de TU Delft. Behalve experimenteel onderzoek op laboratoriumschaal, staan metingen gepland bij Nederlandse hoogbouw. Dit artikel gaat in op de huidige...
article 2015
document
van Berlo, L.A.H.M. (author), Natrop, M. (author)
Building Information Modelling (BIM) is accepted as the new technology for design, engineering and collaboration AEC projects. BIM can be seen as a collection of objects, properties and relations. Many parties in the construction process use the data in their benefit. There is a group of people that has very specific needs on using BIM data: the...
article 2015
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Benner, J. (author), Häfele, K.H. (author), Bonsma, P. (author), Bourdeau, M. (author), Soubra, S. (author), Sleiman, H. (author), Robert, S. (author)
The EU funded collaborative research project STREAMER aims on Energy-efficient Buildings (EeB), focusing on mixed-use healthcare districts. Besides innovations in EeB technology, special emphasis is laid on improving methodologies and tools used in the design process of new or retrofitted hospital buildings. STREAMER follows a model-based,...
conference paper 2015
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Bronkhorst, A.J. (author), Geurts, C.P.W. (author), van Bentum, C.A. (author), Blocken, B. (author)
A wind tunnel study was performed to assess the influence of interference between two high-rise building models on the minimum peak pressure coefficients on facades and roof. A total of 33 configurations were investigated for 24 angles of incidence. The influence of a square and circular interfering model with a height equal to and halfthe...
conference paper 2014
document
van Hees, R.P.J. (author), Lubelli, B.A. (author), Nijland, T.G. (author)
Voor de conservering van aangetaste (natuur)steen in monumentale gebouwen, en dan vooral voor schadetypen die kunnen worden omschreven als afzanden, poederen of verkruïmelen, zijn door de industrie zogenaamde steenverstevigers ontwikkeld. Ethylsilicaten (kiezelzure esters) worden al langere tijd gebruikt. Dit type steenversteviger is...
bookPart 2014
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Steenbergen, R.D.J.M. (author)
article 2014
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Polder, R.B. (author), Peelen, W.H.A. (author)
This paper reviews 25 years of experience with cathodic protection of steel in concrete in The Netherlands. Three phases have passed from the late 1980s until present: pioneering, development and maturity. In the first period CP was mainly applied to precast elements corroding due to mixed in chlorides. The parties involved worked together to...
bookPart 2014
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Kruithof, J.J. (author)
Throughout Europe, structures such as bridges and viaducts are approaching the end of their service life. Material degradation is a direct consequence of ageing and leads to reduced resistance to environmental impacts. In the meantime, some of these environmental impacts, or loads for short, have increased. Traffic loads and extreme weather...
report 2014
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Lubelli, B.A. (author), van Hees, R.P.J. (author)
Zoutkristallisatie is één van de meest voorkomende oorzaken van schade aan poreuze bouwmaterialen; het komt voor in verschillende klimaten. Vooral historische gebouwen vertonen vaak ernstige aantastingsverschijnselen veroorzaakt door zouten. Zouten in poreuze materialen kunnen leiden tot schade door hun interactie met vocht. Het tegengaan van...
bookPart 2014
document
Maljaars, J. (author)
Some existing steel bridges have been constructed from steels with a toughness that does not fulfil the requirements in modern standards. In such a case, standards for bridges do not provide an alternative assessment route. Yet such bridges may still be fit for purpose. This paper presents an assessment method for structural safety and for the...
conference paper 2014
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Nieuwenhuizen, L. (author), de Boer, A. (author), Brouwer, C. (author), Huijben, R.N.J. (author), Luiten, G.T. (author), Sterk, M.M.N. (author), Drieman, R. (author)
Het beheer en onderhoud van constructies in bouw en infra kan efficiënter. RFID-chips, voorzien van sensoren en zenders, kunnen bijvoorbeeld continu gegevens over de onderhoudstoestand van betonconstructies naar de beheerder sturen. Ook kunnen de chips worden gebruikt voor het lokaliseren en identificeren van bouwdelen. Daarmee wordt de...
report 2014
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Pacheco, J. (author), Savija, B. (author), Schlangen, E. (author), Polder, R.B. (author)
The influence of concrete cracking upon reinforcement corrosion is complex. Cracks allow fast penetration of chlorides, potentially leading to a shorter initiation period of reinforcement corrosion. Structural regulations control acceptable crack width values based on the exposure class of the structure. These regulations are limited to crack...
bookPart 2014
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Yang, Z. (author), Fischer, H. (author), Polder, R.B. (author)
Owing to the unique molecular structure and high ion exchange capacity, hydrotalcites are believed to have a potential to be modified and tailor-made as an active component of concrete. In this paper, two types of modified hydrotalcites (MHT-pAB and MHT-NO2) were incorporated into cement mortars with two dosage levels (replacing 5% and 10%...
bookPart 2014
document
van Straalen, IJ.J. (author)
The demand of a risk-informed performance-based approach for fire safety in the Netherlands is growing. Various major incidents (pub fire within the city of Volendam with 14 casualties in 2001, fire in the detention centre of Schiphol-East (airport) with 11 casualties in 2005 and the fire in the mental health care institution Rivierduinen within...
conference paper 2014
document
Gijsbers, F.B.J. (author)
Het praktisch toepasbaar maken van wat in theorie wordt ontwikkeld, daar haalt Jan Gijsbers de meeste voldoening uit. Om het even of dat is voor zijn werk voor TNO of voor de verschillende normcommissies. Hij kan terugvallen op jarenlange ervaring bij zeer uiteenlopende projecten en onderzoeksprogramma’s in binnen- en buitenland.
article 2014
document
Komačka, J. (author), Remišová, E. (author), Liu, G. (author), Leegwater, G. (author), Nielsen, E. (author)
A laboratory investigation was performed to study the effect of reclaimed asphalt with polymer modified bitumen on the properties describing asphalt performance. Three types of asphalts used for wearing courses in Europe (SMA 11, AC 11 and PA 8) were investigated. Five combinations of reclaimed asphalt, virgin aggregate, paving grade and polymer...
conference paper 2014
document
Maljaars, J. (author), Vrouwenvelder, A.C.W. (author)
Many steel structures contain multiple fatigue sensitive details that have similar geometries and are subjected to similar load fluctuations. Examples are orthotropic (bridge) decks and stiffened (ship) hulls where tens to thousands of similar details are present in one structure. Generally only visual inspections on fatigue cracks are...
article 2014
document
Luiten, G.T. (author), Bohms, H.M. (author)
public lecture 2014
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