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Magistritöö eesmärgiks oli kaardistada 15 Eesti kiriku tornikiivrite ankurdus, anda ülevaade tornikiivrite ehitustehnilisest seisukorrast, teostada tornikiivritele stabiilsuskontrollid ja kontrollida olemasoleva ankurduse kandevõimet. Uuritavatele kirikutele tehti teostusmõõdistus ja koostati arvutusskeemid stabiilsuskontrollideks kiivri ümberlükkele ja liugehõõrdele, kasutades selleks arvutiprogramme Autodesk Robot Structural Analysis Professional 2013 ja AutoCAD 2012. Kiivrite ehitusdetailide seisukorda hinnati visuaalselt. Töö tulemusena selgitati välja kolm kirikut, mille tornikiivrid on ankurdamata - Äksi Andrease kirik Tartu maakonnas, Kursi Maarja kirik Jõgeva maakonnas ja Rõngu Mihkli kirik Tartu maakonnas. Ankurduse kontrollarvutustel leiti, et Tartu Katoliku kiriku tornikiivri ankurdus on sõlmedes ebakorrektne. Uuritud tornikiivrite ehituslik seisukord oli üldiselt hea. Uurimistulemustest lähtuvalt on magistritöös esitatud järgmised soovitused: 1) töö tulemusena leitud ohtlike konstruktsioonidega kirikud tuleb võtta detailsema uurimise alla; 2) kontrollida tuleb töös leitud niiskuskahjustustega kandekonstruktsioone; 3) lisaks tuleks kaardistada ja kontrollida ankurdust kirikutel, mille kiivri kõrguse ja selle kandekonstruktsiooni toepunktide vahekauguse suhe on suurem kui 3,5. The aim of the Master’s thesis was to map anchoring of the spires of 15 Estonian churches, to provide an overview of the technical condition of the spires, to perform stability controls calculations for the spires and to verify the carrying capacity of existing anchorage. For the churches under examination an as-built survey was carried out. By using Autodesk Robot Structural Analysis Professional 2013 and AutoCAD 2012, the computational schemes for stability control calculations of the spire’s falling over and sliding fricture were plotter. The condition of the construction elements was visually assessed. As a result of the thesis, three churches with unanchored spires were identified – these were St. Andreas’s Church in Äksi, Tartu County; Sts. Mary and Elisabeth Church in Kursi, Jõgeva County and St. Michael’s Church in Rõngu, Tartu County. The control calculations of anchoring showed that the anchoring of the spire of Roman Catholic Church in Tartu was incorrect in nodes. The overall technical condition of the investigated was generally rated to be good. In the thesis the following recommendations are given: 1) the churches found to be dangerous in constructions should be undertaken for detailed investigation; 2) the carrying constructions with moisture damage must be verified; 3) in addition it would be necessary to map and control the anchoring of the spire in those churches in which the ratio of the height of the spire and distance between supports of the carrying constructions is greater than 3,5. |
