彰化員林興賢書院木材利用及劣化調查

The Utilization and Degradation of Wood Estimated from Academy of Hsing-Hsien of Yuan-Lin in Changhua

根據調查發現興賢書院正殿的四點金柱為台灣櫸，附壁柱使用樟木、福州杉及台灣紅檜木材，建築物之楹材皆使用福州杉木材。枋及門楣主要使用樟木，束仔類構件大量使用樟木和楠木。台灣櫸柱材雖有較佳之抗腐性及抗蟲性，然反覆潮氣的作用，產生不規則開裂，而福州杉明顯受到白蟻及腐朽之危害。赤皮雖未受白蟻與腐朽危害，然木材的縱向不規則開裂成為典型高比重木材之劣化特徵。 The object of this investigation was to estimate the kinds of wood using and wood degradation, and to find the cause of damaged due to degrade. We found that the materials of wood column used with Taiwan zelkova wood, and another materials of wood column adopted with Camphor tree, China fir and Taiwan red cypress in the mail hall. All purlin main used China fir, the jib and door header employed with Camphor tree, SHU-TZU units were build with Camphor tree and Incense nanmu wood. The decay resistant and insect resistant of wood column of Taiwan zelkova were higher than another woods, however irregular crack check was caused by damp on the ground, and insect pest and decay were observed when wood used with China fir. No apparently degraded by termite and decay fungi of red bark oak, however the abnormal longitudinal cracking of wood surface can be found.

The object of this investigation was to estimate the kinds of wood using and wood degradation, and to find the cause of damaged due to degrade. We found that the materials of wood column used with Taiwan zelkova wood, and another materials of wood column adopted with Camphor tree, China fir and Taiwan red cypress in the mail hall. All purlin main used China fir, the jib and door header employed with Camphor tree, SHU-TZU units were build with Camphor tree and Incense nanmu wood. The decay resistant and insect resistant of wood column of Taiwan zelkova were higher than another woods, however irregular crack check was caused by damp on the ground, and insect pest and decay were observed when wood used with China fir. No apparently degraded by termite and decay fungi of red bark oak, however the abnormal longitudinal cracking of wood surface can be found.