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홍석일(Hong, Souk-Il),신효범(Shin, Hyo-Bum),김덕문(Kim, Derk-Moon),김호수(Kim, Ho-Soo) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.10
Generally, stone pagoda structures have been constructed by stacking the masonry stone members. The problem about the safety and stability of masonry stone structure is due to the structural behavior of discontinuum surface between the contact stones rather than the failure by the lack of material strength. The masonry stone structure has the big difference with the analysis method of continuum structure as discontinuum structure. Therefore, the masonry stone should be treated as discontinuum structure that can express mechanical behavior of discontinuum surface between the contact stones. The friction between contact stones of discontinuum structure is a very important factor that affects the behavior of discontinuum surface. Especially, the roughness of discontinuum surface affects the friction. Therefore, we carry out the direct shear test of discontinuum surface for the evaluation of structural behavior according to roughness of the discontinuum surface of stone pagoda and study the characteristics of discontinuum surface according to various roughness. Also, we apply the characteristics of discontinuum surface to stone pagoda model. Finally, we estimate the structural behavior of stone pagoda according to the friction of discontinuum surface.
홍석일,신효범,김덕문,김호수,Hong, Souk-Il,Shin, Hyo-Bum,Kim, Derk-Moon,Kim, Ho-Soo 대한건축학회 2011 대한건축학회논문집 Vol.27 No.10
Generally, stone pagoda structures have been constructed by stacking the masonry stone members. The problem about the safety and stability of masonry stone structure is due to the structural behavior of discontinuum surface between the contact stones rather than the failure by the lack of material strength. The masonry stone structure has the big difference with the analysis method of continuum structure as discontinuum structure. Therefore, the masonry stone should be treated as discontinuum structure that can express mechanical behavior of discontinuum surface between the contact stones. The friction between contact stones of discontinuum structure is a very important factor that affects the behavior of discontinuum surface. Especially, the roughness of discontinuum surface affects the friction. Therefore, we carry out the direct shear test of discontinuum surface for the evaluation of structural behavior according to roughness of the discontinuum surface of stone pagoda and study the characteristics of discontinuum surface according to various roughness. Also, we apply the characteristics of discontinuum surface to stone pagoda model. Finally, we estimate the structural behavior of stone pagoda according to the friction of discontinuum surface.
석탑문화재 손상 유형 및 영향 요인에 따른 손상도 평가
김호수,홍석일,전건우,김덕문,박찬민,Kim, Ho-Soo,Hong, Souk-il,Jeon, Gun-Woo,Kim, Derk-Moon,Park, Chan-Min 한국공간구조학회 2018 한국공간구조학회지 Vol.18 No.2
Stone pagoda structures have continued to be aged due to the combination of various damage factors. However, some studies on nonstructural damage have been carried out, but assessment studies on structural damage have not been done in various ways. Therefore, in this study, structural and nonstructural influencing factors according to the damage types are classified and the damage assessment according to the structural influencing factors affecting the behavior of the stone pagoda structure is performed. In addition, the damage rating classification criteria for each type of structural damages or damage locations are presented, and the damage index is calculated by providing the criteria for the classification of damage according to the degree of damage to which the damage is caused. Therefore, this study can evaluate quantitatively the damage status of stone pagoda structures.
김호수(Kim, Ho-Soo),홍석일(Hong, Souk-Il),유준(Yoo, Jun),정희범(Joung, Hee-Bum) 대한건축학회 2016 大韓建築學會論文集 : 構造系 Vol.32 No.9
In Korea, the occurrence frequency of earthquakes has recently increased, compared with the past. So, the various damages for cultural properties due to earthquake can be expected, and especially the masonry stone pagoda structure is vulnerable to earthquake. Therefore, the resonable seismic performance evaluation is required to secure the safety for the stone pagoda structure with the various configuration types. To this end, this study classifies the stone pagoda structures according to the construction and configuration types, aspect ratios, and then applies the discrete element method to model and analyze the masonry structures. Finally, the seismic performance is evaluated through the allowable story drifts due to the analysis results considering the various design variables.
김호수(Kim Ho-Soo),홍석일(Hong Souk-Il),신효범(Shin Hyo-Bum) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.4
Stone pagoda structure is largely classified into three parts such as top, body and stylobate. Specifically, the reduction of stylobate's bearing capacity has great influence on the structural safety of stone pagoda structure because the stylobate is performing the role of foundation. Therefore, this study evaluates the structural safety of stone pagoda according to the layout types of stylobate's jeoksim. These layout types are classified into stacking form, column form+stacking form and rod-like rock column form based on the construction types of stylobate. Also, the soil loss phenomenon of stylobate is applied for the safety analysis of the structure. For the structural modeling and analysis of stylobate part, discontinuum models and discrete element analysis method are considered.
김덕문(Kim Derk-moon),홍석일(Hong Souk-Il),신효범(Shin Hyo-Bum) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
Masonry stone pagoda has been constructed by stacking the masonry stone members. It has the big difference with the structural behavior of continuum structure as discontinuum structure. The problem about the safety of masonry stone pagoda is decided by structural behavior of discontinuum surface between contact stones rather than the failure by the lack of material strength. Therefore, we estimate structural behavior of masonry stone pagoda under the lateral load according to the internal Jeoksim types.
기단부 및 옥개석 보강형식에 따른 석탑구조물의 구조적 특성평가
김호수(Kim Ho-Soo),홍석일(Hong Souk-Il),신효범(Shin Hyo-Bum) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.3
We have many difficulties in evaluating efficiently the structural behavior of stone pagoda because of the particular mechanical characteristics of the discontinuum structures such as masonry stone pagodas. To this end, the discontinuum modelling and discrete element analysis technique are needed for the structural safety evaluation of these structures in preserving and restoring the historical stone pagodas. Therefore, to evaluate the structural characteristics and safety of stone pagoda considering the reinforcement types of stylobate and roof stone, we select the stone pagoda in Gameunsa temple site as the typical model, and analyzes this structural model through the discontinuum modelling and analytical method under several design variables.
김호수(Kim Ho-Soo),홍석일(Hong Souk-Il),신효범(Shin Hyo-Bum) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.8
The deformation and crack of stone pagoda are caused by the specific changes of ground characteristics such as the slope and depth difference of ground subsidence in weak zone. This phenomenon influences the safety and long-term conservation of stone pagoda structure. Therefore, we evaluate the structural influence of stone pagoda structure by carrying out the structural modeling and analysis according to the various ground characteristics models using the discontinuum analytical method.