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STRUCTURA 2o11. Evaluation and analysis of built timber structures. Konstrukce, materiály a technologie ve stavebnictví. Prezentace výzkumné skupiny STAVEBNÍCH HMOT.
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STRUCTURA2o11 Evaluation and analysis of built timber structures Konstrukce, materiály a technologie ve stavebnictví Prezentace výzkumné skupiny STAVEBNÍCH HMOT Konference s mezinárodní účastí se koná v rámci projektu: „Tvorba a internacionalizace špičkových vědeckých týmů a zvyšování jejich excelence na Fakultě stavební VŠB-TUO“ financovaného z prostředků ERDF.
Project team: Ing. Jana Daňková Team leader Prof. Ing. L. Reinprecht. Csc. Specialistfromforeign university Ing. Pavel Mec Ing. Filip Khestl Ing. Tereza Murínová and students …
Aimsoftheproject: • Survey and diagnosis of existing timber structures
Aimsoftheproject: • Testing of timber properties • Correlation relationships between destructive and semidestruktive methods
History of Želiv monastery • Premonstratensian monastic complex with st. Mary’s birth church in Želiv is national historic landmark. • Foudation of monastic complex is dated to the early 12th century. • After fire in 1681 building of convent was restored under guidance of architect Giacoma Antonia de Maggi. • From 1710 Antoni Scotti was worked in monastery and later ingenious Jan Blazej Santini – Aichel. • At the beginning of 20th century the monastery fired. • In 1993 the religious life came back to monastery and renew is in progression.
Convent roof • Roofovertheconventisoriginalfromendofthe 17th century • Thereisqueen post roofsystemappliedattheconvent
Roof of the st. Mary’s birth church • Roofoverthechurchisoriginalinsteadofsouthbentower • ItissocalledBaroque-Gothic style • Thequeen post roofwith many support members as brickpillarsandwoodenpullswalledintothevaults
Convent truss static analysis • Dimensions are approximately 12,6m lenghtand 6,6m in height • There are many membersbutimportantistheirconectionwhichis in allcases non-rigid
Convent truss static analysis • Wecan‘t analyse thestresses and strainsin trussbecauseofunknowmaterialparameters • Obtainingof these propertiesisoneofcrucialparts in nextresearch. • Wewant to use newdevicesforobtainingwoodproperties
Obtaining of samples for microscopy • Samplesforanalysis on microstructuralscalewasalsoobtain. • Theanalysiswasdone in TU Zvolen
Photos from microscopy analysis • Weweresurprisedbecausethewoodfrommonasterytrussesisdamaged by fungisquite a lot • Wecanobserve many hyphae in samples
Conclusions • Forgooddiagnosisofstructure many propertieshave to beobtain • In historicalstructurethediagnosismustbe sensitive to protecthistoricalvalueofthebuilding • Isneccessary to develop sensitive methodsforhistoricaltimberstructureinvestigation • Due to welldonediagnosisthegoodredevelopmentofstructuremightbeproposedandexecuted