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스페이스 프레임 돔 구조물의 최적화를 위한 형상생성 방안
김호수(Kim Ho-Soo),박영신(Park Young-Sin),양명규(Yang Myung-Kyu),이한주(Lee Han-Joo) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.12
Space frame system is applied to various parts of large spatial dome structures. Especially, space frame dome structure is composed of traditional shape or the combinations of various shapes and new design. In this case, the big difference in the total weight and behavior of structures is shown, based on the selection of space frame dome structure and the difference of member connection, even if they have same size and height. For this reason, it is not easy to decide the optimal shape in the design of this system. Therefore, this study presents the shape generation method and then try to develop the shape generation module. To this end, the node and member generation technique is formulated to consider the characteristics of shapes through the various example selection of space frame dome structure. Also, various example models are presented for efficiency evaluation of the shape generation technique and optimization results are compared through the application of optimization algorithm.
김호수(Kim, Ho-Soo),김재윤(Kim, Jae-Yoon),박영신(Park, Young-Sin),정성진(Jung, Sung-Jin),김왕직(Kim, Wang-Jik),김덕문(Kim, Derk-Moon) 대한건축학회 2011 大韓建築學會論文集 : 構造系 Vol.27 No.10
The traditional fortress structures have the various construction types in the shapes, slopes and infilled materials. Also, we should consider the various applied load conditions as design variables, and then check the dicontinuum behavior characteristics for the reasonable structural modelling and analysis of fortress structure. Therefore, this study selects the representative fortress structure, and then performs the structural modelling considering the various construction shapes and slope variations. Especially, this study evaluates the structural behaviors according to the construction types of fortress structures by comparing the stress and displacements through the discrete element analysis.
위상 및 크기 최적화를 고려한 대공간 철골트러스 구조물의 형상결정 방안
김호수(Kim Ho-Soo),양명규(Yang Myung-Kyu),박영신(Park Young-Sin),이한주(Lee Han-Joo) 대한건축학회 2010 大韓建築學會論文集 : 構造系 Vol.26 No.2
It is very important to find out the initial shape for the efficient design of spatial steel truss structure. Also, the reasonable optimization techniques are required in order to perform the optimal design of the structure. Traditionally, the structural design process starts with an initial conceptual model which is inspired by the designer's intuition and previous experiences. So, this study is to provide the information about the optimum layout of structure through the integrated process for the initial topology and final size optimization. To this end, this study finds out the initial optimum layout of spatial steel truss structure by using the topology optimization for unit structure model, and then decides the final optimal shape by using the size optimization for the total structure combined with several unit models.
기단부 형식을 고려한 고선사지 삼층석탑의 구조모형화 및 해석기법 연구
김호수(Kim Ho-Soo),최홍락(Choi Hong-Lak),박영신(Park Young-Sin),정성진(Jung Sung-Jin),김덕문(Kim Derk-Moon),배병선(Bae Byung-Sun) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.12
Because the stone pagoda structure is considered as the discontinuum masonry system, many difficulties are given in the modelling and analysis process. Therefore, this study investigates the construction types of stylobate for the three-story stone pagoda in Goseon-sa temple site. Also, this study evaluates the vertical load transfer mechanism through the structural modelling and analysis by the discrete element analysis and finite element analysis with the consideration of the discontinuum behavior and contact surface mechanism. To this end, the internal jeoksim types of stylobate are considered in the analysis process. Also, the efficiency of load distribution method for checking the vertical load transfer of each element is analyzed through the comparison of analysis results.
저발열배합 및 분할타설을 고려한 매스콘크리트의 수화열 해석
김호수(Kim Ho-Soo),한민철(Han Min-Cheol),김지연(Kim Ji-Yeon),한승백(Han Seung-Baek) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.1
As the scale of structure becomes larger, the temperature crack of massive concrete structure is caused by the phenomenon which the mass concrete volume is restricted in the inside or outside part due to the temperature variations induced by the hydration heat of cement. So, we should prepare the method to reduce reasonably the hydration heat for the control of temperature crack. Therefore, this study presents the hydration heat analysis to verify the control effect of temperature crack when we consider the different placement layers and block placement according to the different concrete mixtures. To this end, we consider the low heat mixture concrete and block placement effect. This is, we place the low heat mixture concrete in the lower layer by using the admixture to reduce the hydration heat, and then place the general concrete or early strength type concrete in the upper layer. Also, we evaluate the control results of the temperature crack by comparing the distributions of temperature and stress in the middle and surface parts.
스페이스 프레임 구조물의 형상생성 및 최적설계를 위한 통합 모듈화 방안
김호수(Kim Ho-Soo),박영신(Park Young-Sin),이민호(Lee Min-Ho),이한주(Lee Han-Joo) 대한건축학회 2010 大韓建築學會論文集 : 構造系 Vol.26 No.12
Space frame structures need shape generation and optimum design to secure the safety and economy. Especially, the shape of structure is an important factor to determine the optimum design results. However, in spite of the importance of the shape design, the shape decision of structure relys on engineer's intuition and previous experiences. Also, in the optimum design problem, the minimum weight of the structure has been adopted as the objective function in most cases because it is focused on improving economic efficiency. However, this minimum weight optimum design method does not guarantee the maximum stiffness of the structure. Therefore, this study presents the integrated program modular system for the efficient shape generation and optimum design. This integrated modular system consists of shape generation module, structural analysis module and optimum design module. Each module can be connected with a commercial program by using pre/post process. Shape generation module creates the desirable shapes by using the parameterized design variables and the shape can change during the optimization process. Also, in optimum design module, maximum stiffness based on the minimum weight optimum design can be optimized in the step design process that the best results can be derived. For the development and improvement of integrated modular system, the application example with several design variables is considered.
변위민감도 해석을 이용한 삼차원 고층철골조 구조물의 횡변위 제어에 관한 연구
김호수(Kim Ho-Soo),이한주(Lee Han-Joo) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.9
This study presents an effective Stiffness-based optimal technique to control quantitatively lateral drift for 3-D steel frameworks subject to lateral loads To this end, the displacement sensitivity depending on behavior characteristics of 3-D steel frameworks is established Also, the approximation concept that can preserve the generality of the mathematical programing and can efficiently solve large scale problems is introduced Resizing sections in the stiffness-based optimal design are assumed to be uniformly varying in size and the technique of member grouping is considered for the improvement of construction efficiency Two types of 30-story frames are presented to Illustrate the features of the quantitative lateral drift control technique proposed in this study<br/>
하단부 손상유형에 따른 성곽구조물의 구조적 거동특성 평가
김호수(Kim, Ho-Soo),한철희(Han, Cheol-Hee) 대한건축학회 2017 大韓建築學會論文集 : 構造系 Vol.33 No.9
Domestic traditional fortress structures are located at the mountainous area and receive the various loads including the self weight and the lateral load due to the soil pressure at the same time. Especially, the lateral load due to the soil pressure increases as it goes downward, and various damage patterns occur as the influence of the lateral load increases at the lower part of the fortress structure. Damages in the lower part of the fortress structure cause various structural problems such as unequal load distribution and stress concentration of the structure, and accordingly, countermeasures against such problems are required. Therefore, this study selects the representative model reflecting the damage patterns of the lower part of the fortress structure. In addition, structural modeling and structural analysis reflecting the characteristics of discontinuities are performed to evaluate the structural behavior of fortress structure.