ブックタイトル「煉瓦造建造物の保存と修復」英語版

概要

「煉瓦造建造物の保存と修復」英語版

property, care must be taken”(Takiyama et al. 2007, p205).Also, in considering reversibility, it has been indicated that itis impossible to remove these pins in the future (Hasegawa2012, p70)Regarding Important Cultural Properties, thoughrestoration was undertaken prior to national culturalproperty designation, Former Kanazawa Armory Warehouses(photos 7, 8) and Maizuru Naval Station Warehouse Facilities /Bullets Warehouse and Deposit Weapons Warehouse andanother example that was restored after designation wasMaizuru Naval Station Warehouse Facilities / MiscellaneousArticles and Deposit Weapons Warehouse.３.４. Exterior Buttress ReinforcementThis is a method of applying buttresses for preventing outof-planefailure of the walls. On the outside of the brick wall,anchor bolts are attached, a steel frame buttress is bolted on,and then the space between the wall and steel frame flangeis filled with shrinkage-compensating mortar.Advantages of this method are that interior finishes canbe preserved, the weight of reinforcing steel frame is nottoo heavy, and these buttresses can later be removed.In consideration of authenticity of the restored buildingas a cultural property, this easily reversible technique ofreinforcing with buttresses should be highly evaluated.Although when the Former Yamagata Prefecture AssemblyHall, an Important Cultural Property (photos 9, 10), wasreinforced with exterior buttresses, it was at times madefun of with the supports being called merely a“prop”(Round-table talk 1989, p34), the process leading up tothe application of this technique should be noted. At first,the interior finishes were believed to be almost completelylost, but a series of straightforward surveys to solve a hugepuzzle revealing the original specifications resulted in a clearprioritization in restoration, to preserve the interior finishes.This led to the idea of selecting the method of attachingreinforcing buttresses on the exterior for protecting theinterior.Regarding the buttress reinforcement of the FormerYamagata Prefecture Assembly Hall, it has been pointed outthat“to completely restore the interiors, there was a changein the way of thinking that exposed reinforcement on theoutside is inevitable but acceptable”(Nakamura 1998, p22).It can be understood that this project caused a sensation inpreservation principles regarding brick masonry culturalproperty structures.Another example of buttress reinforcement can be seen atphoto 5 Former Temiya Railway Facilities Shed No. 3, steel framereinforcementphoto 7 Former Kanazawa Armory Warehouses（currently IshikawaPrefectural Museum of History）photo 6 Former Temiya Railway Facilities Shed No. 3, steel framereinforcementphoto 8 Former Kanazawa Armory Warehouses（currently IshikawaPrefectural Museum of History）25