ブックタイトル「近代の文化遺産の保存理念と修復理念」英語版

概要

「近代の文化遺産の保存理念と修復理念」英語版

27in a cistern, from where water is discharged togenerate electric power. Electricity is then sentthrough a transmission network. The powerplant is thus one component of a system ornetwork for generating electricity. Waterworks,in the same way, make up a system.　Works of industrial heritage can also in thesame way be treated as systems and networksby changing their boundaries, to include largeor small areas. Individual factories or areas canbe zoned as one system. They can be dividedinto smaller portions and for example can bestudied from the viewpoint of processing rawmaterials.　When dealing with preservation of factoriesand industrial areas, to preserve them intheir entirety would be the most ideal. Ideasfor preservation and adaptive use of theseproperties are much easier to come by at thesite itself, when the property is in view togetherwith the work that takes place there. Onecompany head mentioned as an allegory thatthe best designed and most functional miningfacility is where the lives of the related facilitiescome to an end, about one year after all reserveshave been exhausted. This means that facilitiesand structures that correspond to the size of thereserve and the number of years the mines arein operation would be the most economicallyrational. For this reason, industrial facilities arenot expected to be eternal structures, but rathertemporary structures as has been mentionedearlier. For example, at Sado Mine, there arefacilities with tin roofs. However, when suchstructures are designated as national ImportantCultural Properties, they are as a rule meant tobe preserved forever, and for this reason, thereis now a logical contradiction.　On the other hand, works of civil engineeringare built to last eternally. After the start of theMeiji era, as steel or concrete bridges began toappear to take the place of wood bridges, inthe world of civil engineering they were oftencoined “eternal bridges.” Recently in a televisionprogram focusing on bridges of the era, thishistory was being criticized. “These bridges aremistaken to last forever because they were givensuch a names as eternal bridges.” I understandthis nomenclature of the eternal bridge as notliterally describing that it would last eternally,but as a way of wishing for it to be longlasting; perhaps it was mistakenly understoodby the general public to last eternally. Similarexpressions can be found in the product namefor a reinforced concrete fence system calledMan-nen Bei, literally meaning fences to lastten-thousand [man-nen] years. Wood bridgeswould last only twenty years as opposed to steelor concrete bridges with lives of fifty to sixtyyears, so it is true that the latter does last longer.Today, major bridges of major roadways aredesigned to last for two hundred years throughregular maintenance.　As mentioned above, the differences seen inpreservation and restoration principles of thethree exemplary industrial heritage propertiescan be summarized as follows. In architecture,beauty is a significant element from the timeof completion and at the same time, consideredto be most beautiful when just erected. Thisidea probably constitutes the backbone of thepreservation principle for wood frame structures.On the other hand, with works of civilengineering, although eternal structures are theideal, they are aimed to last for a long time byplacing importance on commodity (function)and firmness (durability). Industrial structuresare temporary structures or production systemsmeant to last for only a limited period of time;the system itself may go through changes due