60톤 크레인의 주행 진동 실험을 통한 인접 석조 문화재의 안정성 평가

이가윤,라영은,이종학,이성민,이기학 한국공간구조학회 2024 한국공간구조학회지 Vol.24 No.1

The aim of this study is to evaluate the possibility of damage to cultural assets resulting from vibrations generated by construction vehicle traffic. The cultural heritage's natural vibration frequency was determined to be 150Hz by measurement. The damping ratios were calculated as 4.7% using the logarithmic decrement approach and 4.3% using the half-power method. The vibration measurements obtained during vehicle operation indicated that, despite an increase in vehicle velocity of up to 15 km/h, the vibrations remained below the detectable level of 0.13 mm/sec. When the road is curved and the terrain is sloped, a suitable speed for vehicle operation was found to be around 17 km/h, at which point vibrations were seen. The highest recorded vibration amplitude at this velocity was 0.217 mm/sec, which remains below the stringent regulation limit of 2 mm/sec. Thus, it can be concluded that there is no actual harm caused by vibrations

아라미드계 섬유 보강을 통한 RC기둥의 연성과 강도 증 진에 대한 실험 연구

이가윤,이동영,박민수,이기학 한국지진공학회 2023 한국지진공학회논문집 Vol.27 No.4

This study proposed a seismic reinforcement of RC columns with non-seismic details, a fiber reinforcement method of aramid sheets and MLCP (high elasticity aromatic polyester fiber material) with different characteristics, and 4 full-size column specimens and conducted experiments. The results show that a non-seismic specimen (RC-Orig) rapidly lost its load-bearing capacity after reaching the maximum load, and shear failure occurred. The RC column reinforced with three types of aramid did not show an apparent increase in strength compared to the unreinforced specimen but showed a ductile behavior supporting the load while receiving a lateral displacement at least 1.57 to 1.95 times higher than the unreinforced specimen. The fracture mode of the specimen, according to the application of lateral load, also changed from shear to ductile fracture through aramid-based reinforcement. In addition, when examining the energy dissipation ability of the reinforced specimens, a ductile behavior dissipating seismic energy performed 4 times greater and more stably than the existing specimens.

유한요소해석을 통한 송산리고분군 무령왕릉의 구조안전성 평가

이가윤,조영훈,이성민,이찬희,이기학,Lee, Ga-Yoon,Jo, Young Hoon,Lee, Sung-Min,Lee, Chan Hee,Lee, Kihak 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.3

Tomb of King Muryeong, located in Sonsan-ri, was found vulnerable due to leakages during since the summer of 2016. This research aims to evaluate structural safety of the Tomb under the tumulus. Site surveys were conducted to find vulnerable inner parts. Structural safety assessment is presented based on both site survey results and analytical results obtained through FEM analysis using the ANSYS program. The underground structure was explicitly modeled to focus on two types of loadings: design loads and actual gravity loads. In general, the tomb does not show any critical deflection increase or damage through the analytical investigation. However, maintenance through continuous monitoring is necessary to prevent severe deflections and stress concentrations since the rigidity of the tomb materials are very vulnerable and likely to be reduced due to prolonged weathering and continuous rain leakage.

보수전과 후의 홍예교의 동적특성과 구조성능에 대한 해석연구

이가윤,이성민,이기학,Lee, Ga-Yoon,Lee, Sung-Min,Lee, Kihak 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.4

This study evaluates safety assessment before and after repair of Seonamsa temple seungseon bridge, which refer to the representative Hongye bridge in Korea. In this approach natural frequency of the structure were considered in the modeling procedure. Trial & error method is applied to obtain the approximate natural frequency before and after retrofit construction. Stiffness of the actual structure was examined to account for the dynamic characteristics of Hongye bridge measured in the field and adjusting parameters in computer modeling. The safety and usability of the stone structure in terms of load bearing capacity and displacement were examined.

디지털 네이티브 광고의 커뮤니케이션 디자인 유형분석

이가윤,정정호 한국브랜드디자인학회 2017 브랜드디자인학연구 Vol.15 No.2

국내외 디지털 광고시장은 성장하고 있으며, 웹·모바일 등의 디지털 매체에 최적화된 광고방식으로 네이티브 광고(Native Advertising)가 대두되고 있다. 하지만, 표현방법 및 효과측정 등 시장에서의 이해가 미흡한 상태이며, 긍정적인 소비자 반응을 견인하기 위한 네이티브 광고의 효과적인 디자인 개발방법이 필요한 실정이다. 이에 본 연구는 디지털 네이티브 광고 유형별 소비자의 긍정적 반응을 고려한 커뮤니케이션 디자인 방법론을 제안하고자 한다. 이를 위해 기존 네이티브 광고방식의 유형을 정리하여, 플랫폼(피드형, 기사형), 콘텐츠 형태(스폰서십형, 디스플레이형)와 소비자 인식(리스티클형, 액션형)의 3가지 측면으로 새롭게 구조화 하였고, 2014년 이후 웹·모바일에서 집행된 디지털 네이티브 광고 사례를 분석하여 시사점을 도출하였다. 그 결과, 첫 번째, 안정적인 콘텐츠 이용을 위해 디스플레이형 방식의 광고표현은 기존 콘텐츠와 조화롭게 구성된 시각적 형태로 개선되어야 하며, 두 번째, 광고 효과의 극대화 및 소비자 몰입을 위해 체험적 요소가 적용된 스폰서십형 및 액션형의 진화가 필요하다. 마지막으로, 사용자의 참여적 행태를 고려한 인터랙티브 콘텐츠 광고(Interactive Contents Adversing)를 공동창조(Co-Creation)하는 협업방식의 리스티클형 플랫폼 형태를 제안하고자 한다.향후 본 연구를 통해 디지털 매체에 최적화 된 네이티브 광고의 커뮤니케이션 디자인 기법의 기초자료로써 제안하고자 하며, 네이티브 광고 방식의 국내 저변 확대를 기대해본다. The digital advertisement market is growing in Korea and overseas. Along with that, Native Advertising that is advertisement optimized for digital media such as the web and mobiles is coming to the fore. However, the way of expression or effect measurement is not yet fully known in the market. Therefore, it is needed to develop effective design for Native Advertising in order to draw positive responses from consumers. This study is going to suggest communication design methodology reflecting consumers’ positive responses to different types of digital Native Advertising. For that, this author has arranged the types of existing Native Advertising and then restructuralized them into three types, the platform (feed or articles), contents (sponsorship or display), and consumer recognition (listicle or action) types. This researcher has analyzed the cases of digital Native Advertising that have been presented on the web or mobiles after 2014 and drawn implications.According to the results, first, for using contents stably, it is necessary to improve display–type advertisement expressions into visual forms harmoniously organized with exiting contents. Second, to maximize the effect of advertising and enhance consumer immersion, it is needed to evolve the sponsorship and action type applying empirical elements. Lastly, considering users’ participative behavior, this author intends to suggest the listicle platform type as a way of cooperation realizing the co-creation of advertisement by interactive contents. This author expects that this study will be used as foundational material about communication design methodology for Native Advertising optimized for digital media and also the extension of area that Native Advertising occupies in Korea.

국내외 건축 문화재 지진 피해 사례 및 대응 현황

이가윤,조영훈,이찬희,이성민,이기학 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.1

브랜드의 기후환경을 위한 소셜미디어캠페인 참여 유형 연구- 스포츠·아웃도어 브랜드 사례를 중심으로 -

이가윤,김수정 사단법인 한국브랜드디자인학회 2023 브랜드디자인학연구 Vol.21 No.1

Today, as social interest and sensitivity to the climate environment are on the rise, several companies are actively conducting social media campaigns for the climate environment. As campaign participation methods and experiences diversified, it became necessary to study design differences for successful social media campaigns. This study aims to examine the participation and fun characteristics in order to find effective ways to participate in social media campaigns for the climate environment of brands. To this end, the theoretical background of participatory design and social media campaigns was examined, and the characteristics of participatory design were categorized into cognitive type, behavioral type, and co-creative type according to participants' perceptions and behavioral initiatives. Accordingly, social media campaigns of sports and outdoor brands that present products and activities closely related to the climate environment were selected and analyzed from the perspective of participation and fun. As a result first, by reinforcing the representative participation elements for each type, it can contribute to spreading information, value consumption, and sustainability of the campaign. Secondly, participation types appear complex, but individual, joint, and productive participation activities can be proposed according to the composition of participation elements for each type. Thirdly, the fun characteristic spreads the campaign through curiosity, and enables consumer immersion and continuous participation in the campaign through a sense of satisfaction and achievement. This study is significant in that it focuses on the relationship between participation and fun characteristic of social media campaigns for the climate environment. 오늘날 기후환경에 대한 사회적 관심과 민감도가 증가하면서 여러 기업들은 기후환경을 위한 소셜미디어 캠페인을 적극적으로 진행하고 있다. 캠페인의 참여방법과 경험이 다양해짐에 따라 성공적인 소셜미디어캠페인을 위한 디자인 차별점 연구가 필요하게 되었다. 본 연구는 브랜드의 기후환경을 위한 소셜미디어캠페인의 효과적인 참여 방안을 모색하기 위해 참여와 유희 특성을 살펴보는 것을 목표로 한다. 이를 위해 참여디자인과 소셜미디어캠페인의 이론적 배경을 살펴보고, 소셜미디어캠페인에 대한 참여자의 인식과 행동의 주도성에 따라 참여디자인을 인식적 참여, 행동적 참여, 공동창조적 참여로 유형화하였다. 이를 통해 기후환경과 밀접한 제품 및 활동을 제시하는 스포츠·아웃도어 브랜드의 소셜미디어캠페인을 선정하여 참여와 유희의 관점에서 분석하였다. 그 결과 첫 번째, 유형별 대표적인 참여 요소를 강화하여 캠페인의 정보 및 가치소비, 지속가능성 확산에 기여할 수 있다. 두 번째, 참여 유형은 복합적으로 나타나지만, 각 유형별 참여 요소 구성에 따라 개인적, 공동적, 생산적 참여 활동을 제안할 수 있다. 세 번째, 유희 특성은 호기심을 통해 캠페인을 확산하고, 만족감 및 성취감을 통해 캠페인에 대한 소비자 몰입과 지속적인 참여를 가능하게 한다. 본 연구는 기후환경을 위한 소셜미디어캠페인의 참여와 유희 특성 간 상관관계를 주목함에 의의가 있다.

신륵사 다층전탑의 구조해석에 대한 연구

이가윤,이성민,이기학 한국공간구조학회 2022 한국공간구조학회지 Vol.22 No.3

Recently, cultural heritages in South Korea gain many interests of restoration and preservation from the government since many of that have been severely damaged during earthquakes. Many previous studies in both terms of experimental and analytical approaches have been done to examine structural behavior and decide appropriate methods of preservation. Being motivated by such researches, this research aims to investigate a religious stone pagoda dated back to the Goryeo Dynasty in Korea. The structure consists of a granite stone foundation and baked bricks, which resembles the shape of traditional pagodas. In order to examine the structural behavior of the pagoda, an analytical model is implemented using ANSYS, a comprehensive engineering simulation platform. For the time history analysis of the pagoda, several earthquake excitations are chosen and input to simulation modeling. Seismic response of the tower such as time domain, natural frequency, modal shapes and peak acceleration measured at each layer are presented and discussed. In addition, the amplification ratio of the tower is calculated from the accelerations of each layer to determine tower stability in accordance with Korean seismic design guide. The determination and evaluation of status and response of the brick tower by simulation analysis play an important role in the preservation of history as well as valuable architectural heritages in South Korea.

날씨 앱(App)에 나타난 인간중심적 브랜드 특성 연구 - 정보 인지 유형을 중심으로 -

이가윤,김수정 한국브랜드디자인학회 2020 브랜드디자인학연구 Vol.18 No.3

오늘날 날씨는 문화, 산업, 경제 등 다양한 분야에 직접적 인 영향을 주고 있다. 날씨 앱 시장은 국내외적으로 성장하고 있으며, 정보의 표현과 사용자 요구가 다양해짐에 따라 날씨 앱의 차별화가 시도되고 있다. 본 연구는 날씨 앱의 정보 제 공 방식에서 사용자 중심의 브랜드 가치 확립을 목적으로 한 다. 이를 위해 정보디자인의 유형을 정리하여, 날씨 앱의 정 보 표현에 따라 나타나는 공통적인 사용자 정보 인지 유형을 정보형, 설득형, 반응형으로 나누고 날씨 앱 사례를 유형별로 분류하였다. 이를 인간중심적 브랜드의 물리성(Physical Prop erties), 감성(Sensibility), 사회성(Social Nature) 3가지 특성 으로 분석하여 시사점을 도출하였다. 그 결과, 첫 번째, 인간 중심적 브랜드의 물리성은 날씨정보를 상징이미지와 여백 표 현을 통해 안정된 정보의 이미지를 형성할 수 있다. 두 번째, 감성은 흥미유발과 모션그래픽 요소를 통해 날씨 앱에 대한 브랜드 애착을 형성할 수 있다. 세 번째, 사회성은 참여디자인과 쌍방향 커뮤니케이션 요소를 통해 날씨 앱의 참여적 브 랜드를 형성할 수 있다. 본 연구는 날씨 앱 연구를 중심으로 인간중심적 브랜드 관점의 디자인 방법론을 제시함에 의의가 있으며, 향후 날씨 앱의 브랜드 가치 및 사용성 향상을 위한 기초자료로 활용될 수 있다. Today, weather is having direct influence on a variety of sectors including culture, industry, and economy. The weather application market is making constant growth do mestic and overseas, and differentiation of weather apps is being conducted thanks to diversification of informatio n expression and user needs. The purpose of this study is establishing user-centered brand value from the metho d of weather app providing information. For this aim, firs tly, after the types of information design were organized, common user information recognition types (information type, persuasion type, and response type) which appear a ccording to weather app information expression have bee n structuralized and secondly, weather app cases have be en classified based on type. The types have been analyze d into three features–physical properties, sensibility, and social nature–and implications have been derived. As a result, firstly, physical property of the human-centered br and can form an image of stable information through sy mbolic images and space expressions of weather informa tion. Secondly, sensibility can form a brand attachment to weather apps through the factor of curiosity arousal and motion graphics. Thirdly, social nature can form a partici patory brand of weather apps through participatory desig n and interactive communication factors. This study is m eaningful in the sense that it proposed human-centered d esign methodology from brand perspective focusing on w eather app studies and can be used as the basic data for improving weather app brand value and usability in the future.

경천사지 십층석탑(敬天寺址 十層石塔)의 조성 배경과 건축 양식 재검토

이가윤 불교미술사학회 2021 불교미술사학 Vol.32 No.-