Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/70601
Registo completo
Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Jędrzejewska, Agnieszka | por |
dc.contributor.author | Kanavaris, Fragkoulis | por |
dc.contributor.author | Zych, Mariusz | por |
dc.contributor.author | Schlicke, Dirk | por |
dc.contributor.author | Azenha, Miguel | por |
dc.date.accessioned | 2021-03-09T11:30:58Z | - |
dc.date.issued | 2020 | - |
dc.identifier.issn | 2352-0124 | por |
dc.identifier.uri | https://hdl.handle.net/1822/70601 | - |
dc.description.abstract | This paper is an effect of coordinated efforts of Working Group 7 of RILEM TC 254-CMS: Thermal cracking in massive concrete structures. The paper deals with a negative effect of restrained hardening-induced strains in reinforced concrete wall-on-slab structures which is cracks formed at the stage of construction of the walls. The aim of the paper was to collect real-life examples of wall-on-slab structures in which hardening-induced cracking was reported, and make a comparative study of these cases to observe patterns and trends on the cracking behaviour of such elements. The study covered a set of almost 20 cases with detailed material and technological data as well as observed cracking patterns. Characteristics of these structures which determine the capacity of crack development were indicated. In addition, for chosen cases the expected crack width was calculated and compared with the measured value. The calculations were performed with the use of current standardised guidance (EN 1992-3 and CIRIA C766) using an approach available at the design stage. This investigation showed that the method of CIRIA C766, being less conservative, consistently predicts smaller crack widths for a fixed set of assumptions compared to EN 1992-3, and both methods showed important discrepancies between the predicted and measured values of crack widths. Changes in calculation methods were proposed to improve the predictability of crack width calculations in wall-on-slab structures under restrained hardening-induced strains. | por |
dc.description.sponsorship | This study is an output of the Working Group 7 of the RILEM TC 254-CMS: Thermal cracking in massive concrete structures. The authors would like to acknowledge members of TC 254-CMS who provided examples and data used in this paper, as well as remarks and insightful comments to this work: Anders Hosthagen (LTU, Sewden), Farid Benboudjema (ENS-Cachan/Paris-Saclay, France), Matthieu Briffaut (3SR Lab, France), Laurent Charpin and Benoit Masson (EFD R&D, France), Vit Smilauer (CTU Prague, Czech Republic), Yunus Ballim (University of the Witwatersrand, South Africa) and Rui Faria (University of Porto, Portugal). The authors would like to acknowledge networking support by the COST Action TU1404 (www.tu1404.eu).Funding provided by the Portuguese Foundation for Science and Technology (FCT) to the Research Project IntegraCrete (PTDC/ECMEST/1056/2014-POCI-01-0145-FEDER-016841) is gratefully acknowledged. This work was partially supported by UID/ECI/04029/2019 -ISISE funded by national funds through the FCT/MCTES (PIDDAC). In particular case of the leading author, funding of the research by the Polish Ministry of Science and Higher Education within the grant BK-298/RB6/2020 is acknowledged. The contents of this paper reflect the views of the authors, who are responsible for the validity and accuracy of presented data, and do not necessarily reflect the views of their affiliated organisations. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | restrictedAccess | por |
dc.subject | Restrained imposed deformations | por |
dc.subject | Wall-on-slab structures | por |
dc.subject | Early age cracking | por |
dc.subject | Crack width control | por |
dc.title | Experiences on early age cracking of wall-on-slab concrete structures | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S2352012420302885 | por |
oaire.citationStartPage | 2520 | por |
oaire.citationEndPage | 2549 | por |
oaire.citationVolume | 27 | por |
dc.identifier.doi | 10.1016/j.istruc.2020.06.013 | por |
dc.date.embargo | 10000-01-01 | - |
dc.subject.wos | Science & Technology | por |
sdum.journal | Structures | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
[80].pdf Acesso restrito! | 2,65 MB | Adobe PDF | Ver/Abrir |