@incollection{LlanoTorreSernaCavalaroetal., author = {Llano-Torre, Aitor and Serna, Pedro and Cavalaro, Sergio H. P. and Buratti, Nicola and Stefan Bernard, E. and Boshoff, William P. and Zerbino, Ra{\´u}l L. and Pauwels, Hans and Kusterle, Wolfgang and Garcia-Taengua, Emilio and Vrijdaghs, Rutger and del Prete, Clementina and dos Santos, Karyne F. and Parmentier, Beno{\^i}t and Mazzotti, Claudio}, title = {Introduction and Background}, series = {Round-Robin Test on Creep Behaviour in Cracked Sections of FRC: Experimental Program, Results and Database Analysis}, booktitle = {Round-Robin Test on Creep Behaviour in Cracked Sections of FRC: Experimental Program, Results and Database Analysis}, editor = {Llano-Torre, Aitor and Serna, Pedro}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-030-72735-2}, doi = {10.1007/978-3-030-72736-9_1}, pages = {1 -- 10}, abstract = {The absence of a standardised methodology to evaluate creep in the cracked state of fibre-reinforced concrete (FRC) hindered general comparisons and conclusions that could lead to significant advances in this topic. A coordinated effort was required to improve the knowledge on long-term behaviour of cracked FRC sections and assess the different testing methodologies available. The RILEM Technical Committee 261-CCF launched in 2015 the round-robin test (RRT) on creep behaviour in cracked sections of FRC program. This chapter includes the introduction and background to understand the realisation of this RRT. The main objectives as well as the limitations of the scope of the RRT are explained. The structure of the book is presented to provide a first overview of the book content. Finally, information about institutions involved as well as geographic distribution of RRT participants and number of specimens tested in the RRT is provided.}, language = {en} } @incollection{LlanoTorreSernaCavalaroetal., author = {Llano-Torre, Aitor and Serna, Pedro and Cavalaro, Sergio H. P. and Buratti, Nicola and Bernard, E. Stefan and Boshoff, William P. and Zerbino, Ra{\´u}l L. and Pauwels, Hans and Kusterle, Wolfgang and Garcia-Taengua, Emilio and Vrijdaghs, Rutger and del Prete, Clementina and dos Santos, Karyne F. and Parmentier, Beno{\^i}t and Mazzotti, Claudio}, title = {Statements and Conclusions}, series = {Round-Robin Test on Creep Behaviour in Cracked Sections of FRC: Experimental Program, Results and Database Analysis}, booktitle = {Round-Robin Test on Creep Behaviour in Cracked Sections of FRC: Experimental Program, Results and Database Analysis}, editor = {Llano-Torre, Aitor and Serna, Pedro}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-030-72735-2}, doi = {10.1007/978-3-030-72736-9_9}, pages = {209 -- 220}, abstract = {A round-robin test (RRT) on creep behaviour in cracked section of fibre-reinforced concrete (FRC) was realised with the participation of 19 international laboratories from 22 institutions. The same concrete matrix was used to design two different FRC mixes with steel (SFRC) and macro-synthetic (SyFRC) fibres and to produce 451 FRC specimens. The use of 124 specimens for creep tests for one year following four main methodologies provided a huge database with more than 15,000 data. The main statements and conclusions derived from the RRT database analysis are summarised in this section. Note that the conclusions derived from this RRT are limited to the ranges of parameters, procedures and variables considered here and should not be extrapolated to other cases.}, language = {en} } @incollection{LlanoTorreSernaGarciaTaenguaetal., author = {Llano-Torre, Aitor and Serna, Pedro and Garcia-Taengua, Emilio and Vrijdaghs, Rutger and Pauwels, Hans and del Prete, Clementina and Buratti, Nicola and Zerbino, Ra{\´u}l L. and Kusterle, Wolfgang and Stefan Bernard, E.}, title = {Analysis of the RRT Results}, series = {Round-Robin Test on Creep Behaviour in Cracked Sections of FRC: Experimental Program, Results and Database Analysis}, volume = {34}, booktitle = {Round-Robin Test on Creep Behaviour in Cracked Sections of FRC: Experimental Program, Results and Database Analysis}, editor = {Llano-Torre, Aitor and Serna, Pedro}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-030-72735-2}, doi = {10.1007/978-3-030-72736-9_8}, pages = {147 -- 207}, abstract = {The analysis of the results of the round-robin test (RRT) comprised many steps. The variation of the main variables such as the number of samples tested, environmental conditions, pre-crack level or creep index and mechanical performance were analysed among all the RRT participants. In addition, the main methodologies were independently analysed to search significances between the participant procedures. Analysis of the described procedures, test setups and equipment provided relevant information about such existent differences between participants in terms such as load configuration, boundary conditions or frames construction. The creep coefficient and crack opening rate (COR) parameters were defined and analysed. The complementary data number of fibres in the cross section was analysed to assess the influence in the long-term residual performance. Finally, the correlation between different fibre-reinforced concrete (FRC) specimens as well as the influence of ageing of concrete matrix were analysed.}, language = {en} } @incollection{Schermer, author = {Schermer, Detleff}, title = {Bemessung von Mauerwerk}, series = {Handbuch f{\"u}r Bauingenieure}, volume = {6}, booktitle = {Handbuch f{\"u}r Bauingenieure}, editor = {Zilch, Konrad and Diederichs, Claus J{\"u}rgen and Beckmann, Klaus J. and Gertz, Carsten and Malkwitz, Alexander and Moormann, Christian and Urban, Wilhelm and Valentin, Franz}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-21749-5}, doi = {10.1007/978-3-658-21749-5_66-1}, pages = {1 -- 31}, abstract = {Die Bemessung von Mauerwerk deckt neben der Tragf{\"a}higkeit auch den Nachweis der Gebrauchstauglichkeit ab. Im Beitrag werden die Grundanforderungen und Hintergr{\"u}nde der Bemessung von Mauerwerk dargelegt und die L{\"o}sungen nach den aktuellen Vorschriften von Eurocode 6 und dem Nationalen Anhang erl{\"a}utert.}, language = {de} } @article{SykoraDiamantidisHolickyetal., author = {S{\´y}kora, Miroslav and Diamantidis, Dimitris and Holick{\´y}, Milan and Markov{\´a}, Jana and R{\´o}zs{\´a}s, {\´A}rp{\´a}d}, title = {Assessment of compressive strength of historic masonry using non-destructive and destructive techniques}, series = {Construction and Building Materials}, volume = {193}, journal = {Construction and Building Materials}, number = {December}, publisher = {Elsevier}, doi = {10.1016/j.conbuildmat.2018.10.180}, pages = {196 -- 210}, abstract = {Masonry structures were built by various techniques using different materials, the properties of which exhibit a considerable scatter dependent on periods of construction and region-specific conditions. For historic structures with a heritage value, various non- or minor-destructive tests (NDTs) are commonly applied, while the application of destructive tests (DTs) is minimized. The contribution is based on investigations of 15 historic stone and clay brick masonry structures, for which NDT strengths of masonry units are verified by DTs. The proposed operational approach makes it possible to account for statistical uncertainty due to a limited number of DTs used to calibrate NDTs.}, language = {en} } @inproceedings{DiamantidisSykora, author = {Diamantidis, Dimitris and S{\´y}kora, Miroslav}, title = {Implementing Snow Load Monitoring to control Reliability of a Stadium Roof}, series = {Transactions of VSB}, volume = {19}, booktitle = {Transactions of VSB}, number = {1}, publisher = {TECHNICAL UNIVERSITY OF OSTRAVA}, doi = {10.35181/tces-2019-0006}, pages = {35 -- 40}, abstract = {This contribution shows how monitoring can be used to control reliability of a structure not complying with the requirements of Eurocodes. A general methodology to obtain cost-optimal decisions using limit state design, probabilistic reliability analysis and cost estimates is utilised in a full-scale case study dealing with the roof of a stadium located in Northern Italy. The results demonstrate the potential of monitoring systems and probabilistic reliability analysis to support decisions regarding safety measures such as snow removal, or temporary closure of the stadium.}, language = {en} } @article{BenekosDiamantidis, author = {Benekos, Ioannis and Diamantidis, Dimitris}, title = {On risk assessment and risk acceptance of dangerous goods transportation through road tunnels in Greece}, series = {Safety Science}, volume = {91}, journal = {Safety Science}, number = {91}, publisher = {Elsevier}, doi = {10.1016/j.ssci.2016.07.013}, pages = {1 -- 10}, abstract = {Prescriptive and risk-based methods including qualitative, semi-quantitative and quantitative approaches exist for the risk assessment of road tunnels. This paper provides an overview and a brief discussion of these methods and uses representative traffic and accident data in Greece in a typical tunnel conforming with the minimum infrastructure requirements of the European Directive 2004/54/EC to compare and discuss the resulting risk for each of these methods. Conclusions regarding the implementation of risk analysis methods and the use of the associated existing national guideline are drawn and recommendations for further developments in standards are provided. An integrated framework for the optimal selection of safety measures based on risk reduction and socio-economic considerations is proposed and its applicability in risk analysis of road tunnels is discussed. (C) 2016 Elsevier Ltd. All rights reserved.}, language = {en} } @article{SykoraDiamantidisHolickyetal., author = {S{\´y}kora, Miroslav and Diamantidis, Dimitris and Holicky, Milan and Jung, Karel}, title = {Target reliability for existing structures considering economic and societal aspects}, series = {Structure and infrastructure engineering}, volume = {13}, journal = {Structure and infrastructure engineering}, number = {1}, publisher = {Taylor\&Francis}, doi = {10.1080/15732479.2016.1198394}, pages = {181 -- 194}, abstract = {Specification of target reliability levels is one of the key issues of the assessment of existing structures. ISO 13822:2010 and ISO 2394:2015 indicate procedures for specification of target reliability levels by optimisation of the total cost related to an assumed remaining working life of a structure. These approaches are critically compared with human safety criteria, with target levels based on a marginal life-saving costs principle, and with recommendations of present standards. Optimal target reliability levels are then derived in the representative case study for an existing structural member. It appears that the requirement to reach the same target reliability levels for existing and new structures is uneconomical. Decisions made in the assessment can result in the acceptance of the actual state or in the upgrade of an existing structure. Two reliability levels are thus needed - the minimum level below which the structure is unreliable and should be upgraded, and the target level indicating an optimum upgrade strategy. It is recommended that these levels be established using economic optimisation and the marginal life-saving costs principle, as both the approaches take into account the costs of safety measures and the failure consequences.}, language = {en} } @article{Schermer, author = {Schermer, Detleff}, title = {The simplified calculation method of DIN EN 1996-3 in practice}, series = {Mauerwerk}, volume = {19}, journal = {Mauerwerk}, number = {6}, publisher = {Wiley}, doi = {10.1002/dama.201500682}, pages = {471 -- 478}, abstract = {The design and detailing of masonry buildings was usually undertaken in the past using the simplified procedure in Section 6 of DIN 1053-1 (1996-11). With the changeover to the new European code, a new procedure has been made available with the simplified calculation method of DIN EN 1996-3, which promises similarly simple and safe handling for the user. The practical implementation of this new code has been underway for some time. The article investigates the standard design cases and explains the innovations and alterations compared to DIN 1053-1.}, language = {en} } @incollection{ObergriesserKraus, author = {Obergrießer, Mathias and Kraus, Michael A.}, title = {Digitale Transformation im Bauwesen - Von der Theorie zur Anwendung}, series = {Mauerwerk-Kalender 2022: Fassadengestaltung, Bauphysik, Innovationen}, volume = {47}, booktitle = {Mauerwerk-Kalender 2022: Fassadengestaltung, Bauphysik, Innovationen}, editor = {Schermer, Detleff and Brehm, Eric}, publisher = {Ernst \& Sohn}, address = {Berlin}, isbn = {978-3-433-03356-2}, doi = {10.1002/9783433611029.ch16}, pages = {499 -- 519}, abstract = {Dieser Beitrag f{\"u}hrt zun{\"a}chst in die digitale Transformation (DT) des Bauwesens und deren wesentliche Methoden wie BIM, digitaler Zwilling etc. ein. Zur Erzielung eines begriff‌lichen und semantischen Verst{\"a}ndnisses werden die Definitionen zudem an Anwendungsbeispielen veranschaulicht. Neben den Gr{\"u}nden f{\"u}r die DT werden der Status quo sowie der Weg vom analogen Planen und Bauen zur Vision „Planen und Bauen~4.0" dargestellt. Kernelemente sind verschiedene Ansatzpunkte, Entscheidungshilfen und Schl{\"u}sse zur Begegnung der technischen und adaptiven Herausforderungen der DT auf Unternehmer‑, aber auch Hochschulniveau. Insbesondere der Faktor Mensch und dessen humane wie technische Kollaborations- und Vernetzungsf{\"a}higkeit wird in diesem Beitrag Rechnung getragen. Abschließend wird neben einer Zusammenfassung der dargestellten Inhalte zudem ein Ausblick f{\"u}r die DT im Bauwesen bis hin zum Einsatz von Robotik und KI f{\"u}r den im n{\"a}chsten Jahr erscheinenden zweiten Teil dieses Beitrags gegeben.}, language = {de} }