• Title/Summary/Keyword: 변상도

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Crack Propagation Analysis Using the Concept of an Equivalent Plastic Hinged Length (등가소성힌지개념을 이용한 지하구조물 균열진전해석)

  • Park, Si-Hyun
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.13 no.1 s.53
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    • pp.115-124
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    • 2009

  • In this study, a numerical analysis technique was newly developed to evaluate the damage propagation characteristics of concrete structures. To do this, numerical techniques are incorporated for the concrete members up to the compressive damage due to the bending compressive forces after the tensile crack based on the deformation mechanism. Especially, for the compressive damage stage after the tensile crack, the crack propagation process will be analyzed numerically using the concept of an equivalent plastic hinged length. Using this concept, it can be established that section forces, such as axial forces and the moment cracks takes place, can be related to the width of the crack making it possible to analyze the crack extension.

  • https://doi.org/10.11112/jksmi.2009.13.1.115 인용 PDF KSCI

A Terrestrial LiDAR Based Method for Detecting Structural Deterioration, and Its Application to Tunnel Maintenance (터널 유지관리를 위한 지상 LiDAR 기반의 구조물 변상탐지 기법 연구)

  • Bae, Sang Woo;Kwak, Jae Hwan;Kim, Tae Ho;Park, Sung Wook;Lee, Jin Duk
    • The Journal of Engineering Geology
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    • v.25 no.2
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    • pp.227-235
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    • 2015

  • In recent years, owing to the frequent occurrence of natural disasters, the inspection and maintenance of structures have become increasingly important on a national scale. However, because most structural inspections are carried out manually, and due to the lack of objectivity in data acquisition, quantitative data are not always available. As a result, researchers are seeking ways to collect and standardize survey data using terrestrial laser scanning, thereby bypassing the limitations associated with visual investigations. However, field data acquired using a laser scanner have been required to measure changes in structure geometry resulting from passive deterioration. In this study, we demonstrate that it is possible to identify the processes of structural deterioration (e.g., efflorescence, leakage, delamination) using intensity data from terrestrial laser scanning. Additionally, we confirm the viability of automated classification of alteration type and objectification of the polygon area by establishing intensity characteristics. Finally, we show that our method is effective for structural inspection and maintenance.

  • https://doi.org/10.9720/kseg.2015.2.227 인용 PDF KSCI KPUBS HTML

The study on Byunsangwha(Buddha's preaching paint) of 4 volumes of the script of 80 Avatamska Sutra present in Japan (일본(日本)에 현존(現存)하는 4권의 주본화엄경(周本華嚴經)의 변상획(變相畵)에 관한 연구)

  • Kwon, Hi-Kyung
    • Journal of Korean Society of Archives and Records Management
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    • v.4 no.1
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    • pp.67-85
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    • 2004

  • Four volumes of the script of the Avatamska Sutra written with golden paste on dark blue papers manufactured in Koryo Dynasty which are collected or deposited in every museum of Japan show specific features on their cover paintings. In general 3 or 4 lotus flowers are wound by arabesque patterns in zigzag on the cover paintings of Koryo scripts, whereas 10 lotus flowers painted with golden paste on the 4 volumes of these scripts are same in their style. Though there is no prayer sentences in 4 volumes of the script, it is possible to know that they should belong to a set of 80 Avatamska Sutra by the results of above studies. In this study the contents of Byunsangwha of the script of 4 volumes of the Avatamska Sutra were discussed at first and their manufactured era should be postulated by the results of style analysis of cover paintings and Byunsangwha. First thing that saint hair of Buddha was painted with cobalt color is same as that of Byunsangwha of Munsuchoisangsungmusenggebueob prayed in Tejeong 3rd year, king Chungsuk 13th year(AD 1326). Second thing that the beads in topknot of saint hair and lips were painted completely with pink color, and ears, face outline as well as bosom outline disclosed through monk's cloth were also painted with pink color, furthermore the last thing is that Buddha's face was coated with golden paste. All of these things are same as shown in the characteristics of Byunsangwha of the scripts of Kanezawa Daishoji, Matsue Tenrinji and Haga Tera collection in Japan. However, since the cloud pattern style of Byunsangwha of the script is similar to that of the Byunsangwha manufactured in reinstatement era of king Chungsuk, it is possible to say that these 4 volumes of script should be manufactured in the reinstatement era of king Chungsuk.

  • https://doi.org/10.14404/JKSARM.2004.4.1.067 인용 PDF