Canterbury cathedral: structural analysis of the South Aisle
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2014 |
| Tipo de documento: | Dissertação |
| Idioma: | eng |
| Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
| Texto Completo: | http://hdl.handle.net/1822/35301 |
Resumo: | Dissertação de mestrado em Advanced Masters in Structural Analysis of Monuments and Historical Constructions |
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Canterbury cathedral: structural analysis of the South Aisle624.059Engenharia e Tecnologia::Engenharia CivilDissertação de mestrado em Advanced Masters in Structural Analysis of Monuments and Historical ConstructionsThe Canterbury Cathedral at Canterbury Kent, in the UK, seat of the Archbishop of Canterbury, head of the Anglican Church, stands as a monument of English Gothic architecture of immense importance, and is part of the UNESCO World Heritage site. Its central nave and lateral aisles, secluded by the twin bell towers of the west front and the west transept, with a 72 m tower at the crossing, is a fine example of the English Gothic style of the early 14th century. The inspection and damage survey, conducted in the Cathedral’s nave, revealed the generally good condition of the skeleton, with the exception of a repetitive crack pattern on the vault’s intrados, which intensified in a part of the south aisle, including some outward rotating movement and cracking in the south flying buttresses. Ambient vibration tests were carried out at the nave and south aisle roof level, in order to identify the modal response of the structure. A Graphic Statics analysis was conducted ,with the aim to compliment the results of the structural analysis, by investigating the load paths in the structural elements and how the geometrical configuration of the Cathedral’s nave section advocated its structural performance. Through the geometrical survey, a 3D CAD model of a typical transversal section of the nave was elaborated and, accordingly, a FE model was built in Midas FX+ for DIANA software, in order to investigate various hypothesis of structural damage, by reproducing the existing crack pattern and obtaining certain levels of structural safety. The results from the ambient vibrations tests were used for the calibration of the FE model. Different nonlinear static analyses under dead loading were performed, by considering model variables, such as the infill volume, the presence of lateral thrust from the nave’s roof and differential settlements. A validated FE model, having a sufficient correlation with the existing damage was used to determine to safety factor of the structure in both lateral and vertical loading.A Catedral de Canterbury localizada no condado de Canterbury, Reino Unido, sede do arcebispo de Canterbury, chefe da Igreja Anglicana, é um monumento de enorme importância para a arquitetura gótica inglesa, sendo parte do Património Mundial da UNESCO. A sua nave central e corredores laterais, abrigados pelas torres da fachada oeste e do transepto oeste, é um belo exemplo do estilo gótico Inglês do início do século 14. A inspeção e pesquisa de danos, realizadas na nave da Catedral, revelaram um bom estado geral do esqueleto, exceto um padrão de fendilhação que se repete no intradós da abóbada, intensificando-se no corredor sul, incluindo movimento de rotação no sentido exterior e fendas nos arcos dos contrafortes localizados a sul. Foram realizados ensaios de vibração ambiental na nave e no corredor sul ao nível da cobertura, a fim de identificar a resposta modal da estrutura. Uma análise gráfica estática, complementa os resultados da análise estrutural, investigando a distribuição de carga nos elementos estruturais e em que forma a configuração geométrica da seção da nave da Catedral afeta o desempenho estrutural da mesma. Através do levantamento geométrico, um modelo 3D CAD de uma seção transversal típica da nave foi elaborado um modelo de elementos finitos, construído em Midas FX + para o software DIANA, a fim de investigar várias hipóteses de danos estruturais, reproduzindo o padrão de fendilhação existente e obtendo os níveis de segurança estrutural. Os resultados dos ensaios de vibração ambiental foram utilizadas para a calibração do modelo de elementos finitos. Foram realizadas analises estáticas nãolineares com cargas permanentes, considerando-se as variáveis do modelo, tais como o volume de enchimento, a presença do impulso lateral da cobertura da nave e assentamentos diferenciais. Um modelo de elementos finitos validado, tendo uma correlação suficiente com os danos existentes, foi utilizado para determinar o fator de segurança da estrutura para carregamentos laterais e verticais.Ο Καθεδρικός ναός του Canterbury, στην πόλη του Canterbury της επαρχίας Kent, της Μεγάλης Βρετανίας, αποτελεί την έδρα του Αρχιεπισκόπου του Canterbury, κεφαλή της Αγγλικανικής Εκκλησίας. Δεσπόζει ως μνημείο Αγγλικής Γοτθικής αρχιτεκτονικής εξαιρετικής σπουδαιότητας και ανήκει στον κατάλογο των Μνημείων Παγκόσμιας Κληρονομιάς της UNESCO. Το κεντρικό και τα δύο πλευρικά του κλίτη περιέχονται μεταξύ των δύο δίδυμων πύργων της δυτικής πρόσοψης και του δυτικού εγκάρσιου κλίτους, με τον κεντρικό πύργο ύψους 72 μέτρων, και αποτελούν ένα χαρακτηριστικό παράδειγμα του Αγγλικού Γοτθικού στυλ των αρχών του 14ου αιώνα. Η επί τόπου έρευνα και μελέτη της παθολογίας, που επικεντρώθηκε στο κεντρικό και πλευρικά κλίτη του ναού, αποφάνθηκε την γενικά καλή κατάσταση του στατικού συστήματος, πέραν μιας αλληλουχίας ρωγμών στο εσωράχιο των θόλων, που εντείνεται σε τμήμα του νότιου πλευρικού κλίτους, περιλαμβανομένης και μιας έξω περιστροφικής κίνησης, με συνεπάγοντες ρωγμές στις νότιες τοξωτές αντηρίδες. Η επιτόπια εκτέλεση ambient vibration tests, στο επίπεδο της στέγης του κεντρικού και του νότιου κλίτους, προσδιόρισαν την ιδιομορφική απόκριση της κατασκευής. Η γραφική στατική ανάλυση της κατασκευής πραγματοποιήθηκε ώστε να απότελέσει ένα ακόμη κριτήριο σύγκρισης με τα αποτελέσματα της στατικής ανάλυσης, μέσω της διερεύνησης των διαδρομών των φορτίων στα στατικά μέλη και του βαθμού επιρροής της γεωμετρικής διάρθρωσης του ναού στη στατική συμπεριφορά του. Μέσω της αρχιτεκτονικής αποτύπωσης, παράχθηκε μια τρισδιάστατη γεωμετρική απεικόνιση μιας τυπικής κάθετης τομής του κεντρικού και πλευρικών κλιτών και μέσω αυτής ένα αριθμητικό προσομοίωμα, μέσω του προγράμματος πεπερασμένων στοιχείων Midas FX+ for DIANA, προκειμένου να διερευνηθούν πιθανές αιτίες δομικής βλάβης. Βασικό κριτήριο αποτέλεσε η αναπαραγωγή του υπάρχοντος μοτίβου ρωγμών και ο καθορισμός επιπέδων δομικής ασφάλειας. Μη γραμμικές στατικές αναλύσεις πραγματοποιήθηκαν, υπό την επιρροή μόνιμων φορτίων και μεταβλητών συσχέτισης, όπως ο όγκος πλήρωσης των θόλων, η παρουσία πλευρικής ώσης μέσω της στέγης και η ύπαρξη διαφορικών καθιζήσεων. Το τελικό παραγόμενο αριθμητικό προσομοίωμα της τυπικής τομής του ναού, έχοντας επαρκή συσχέτιση με την υφιστάμενη βλάβη, χρησιμοποιήθηκε για να προσδιοριστεί ο συντελεστής δομικής ασφαλείας τόσο σε πλευρική και κατακόρυφη ώθηση.Lourenço, Paulo B.Corallo, ClaudioUniversidade do MinhoKaranikoloudis, Georgios20142014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisapplication/pdfhttp://hdl.handle.net/1822/35301enginfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:22:03Zoai:repositorium.sdum.uminho.pt:1822/35301Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:15:28.261635Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
| dc.title.none.fl_str_mv |
Canterbury cathedral: structural analysis of the South Aisle |
| title |
Canterbury cathedral: structural analysis of the South Aisle |
| spellingShingle |
Canterbury cathedral: structural analysis of the South Aisle Karanikoloudis, Georgios 624.059 Engenharia e Tecnologia::Engenharia Civil |
| title_short |
Canterbury cathedral: structural analysis of the South Aisle |
| title_full |
Canterbury cathedral: structural analysis of the South Aisle |
| title_fullStr |
Canterbury cathedral: structural analysis of the South Aisle |
| title_full_unstemmed |
Canterbury cathedral: structural analysis of the South Aisle |
| title_sort |
Canterbury cathedral: structural analysis of the South Aisle |
| author |
Karanikoloudis, Georgios |
| author_facet |
Karanikoloudis, Georgios |
| author_role |
author |
| dc.contributor.none.fl_str_mv |
Lourenço, Paulo B. Corallo, Claudio Universidade do Minho |
| dc.contributor.author.fl_str_mv |
Karanikoloudis, Georgios |
| dc.subject.por.fl_str_mv |
624.059 Engenharia e Tecnologia::Engenharia Civil |
| topic |
624.059 Engenharia e Tecnologia::Engenharia Civil |
| description |
Dissertação de mestrado em Advanced Masters in Structural Analysis of Monuments and Historical Constructions |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014 2014-01-01T00:00:00Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
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http://hdl.handle.net/1822/35301 |
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http://hdl.handle.net/1822/35301 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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