• 국제초고층학회논문집
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• 제5권3호
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• pp.221-232
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• 2016

With the booming of construction and property industries in China, the demand for high-rises and mega-scale buildings with more integrated building functions, open- and tailor-shaped outlooks, better connections to municipal infrastructures, and higher grades of building importance has been increasing in the past two decades. The seismic design and engineering of such modern mega-buildings face engineering challenges such as hazard mitigation of extreme actions and surroundings, integrated structural frameworks and building skins, complex connections, and overall construction efficiency. It is the work of a new generation of civil and structural engineers to enhance engineering efficiency and achieve overall engineering, environmental, and economical effectiveness for these high-rise projects. This paper elaborates the above topics through case studies on the design and construction of four such developments in China. Some rethinking is conducted on evolution in modern seismic engineering and design through innovation to achieve an acceptable level of overall sustainability and building effectiveness.

• 국제초고층학회논문집
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• 제8권3호
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• pp.201-209
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• 2019

This paper presents a structural design of the "(Tentative Name) Toranomon Hills Residential Tower" which is currently under construction in Tokyo. The building is a reinforced concrete high-rise residential complex building with 54 stories above ground, 4 basement levels, and a building height of about 220 m. It is a requirement to provide the highest grade of residence in Japan, and in terms of the structural design, it is required to provide wide and comfortable spaces with high seismic performance. These requirements are satisfied by providing a total of 774 vibration control walls of two types. Also, to further improve the structural performance, steel fibers at the rate of 1.0vol% are provided in the ultra-high strength concrete used in the column members.

• 한국산학기술학회논문지
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• 제20권3호
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• pp.285-290
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• 2019

본 연구는 공식적인 자료를 통해 초고층 아파트와 일반 아파트 단지의 에너지 소비 특성을 비교하고 초고층화를 지향하는 인천시 정책에 시사점을 제안하고자 한다. 분석방법은 사례 대상을 선정하여 현장조사와 도면 검토, 건축물생애이력관리시스템의 분석 등이다. 특히, 인천시 연수구라는 동일한 지역에 위치한 초고층 아파트와 일반 아파트 단지를 대상으로 에너지 소비현황을 도출하고 특성을 비교분석하였다. 첫째, 일반 아파트 단지에 비해 초고층 아파트 단지의 전력에너지 사용량이 1.63-2.5배까지 소비하고 있는 것으로 나타났다. 둘째, 가스에너지 사용량의 경우에도 초고층 아파트 단지가 많이 소비되고 있었으며, 그 폭은 1.09-1.2배였다. 셋째, 단위면적당 에너지소비 또한 1.042-1.3배 높은 것으로 분석하였다. 물론 초고층 아파트 단지의 경우, 일반 아파트 단지에 비해 단위면적당 더 많이 소비되고 있음이 거주자의 수입, 생활수준, 생활패턴 등 개인적 요소가 영향을 미치기도 하며, 이를 고려한 에너지소비 단위나 만족도 등에 대한 점은 본 연구의 한계이자 향후 후속적으로 진행할 연구 소재이다. 다만 공개적이고 실증적인 자료를 통해 아파트 단지 차원의 단위면적당 에너지소비량을 제시하고 기존의 도시정책에 문제제기를 한 점은 본 연구가 가진 의의이다.

• 국제초고층학회논문집
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• 제7권4호
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• pp.363-374
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• 2018

The façade is an important, complex, and costly part of a building, performing multiple objectives of value to the occupants, like protecting from wind, rain, sunlight, heat, cold, and sound. But the frequency of façade fires in large buildings is alarming, and has multiplied by seven times worldwide over the last three decades, to a current rate of 4.8 fires per year. High-performing polymer based materials allow for a significant improvement across several objectives of a facade (e.g., thermal insulation, weight, and construction time) thereby increasing the quality of a building. However, all polymers are flammable to some degree. If this safety problem is to be tackled effectively, then it is essential to understand how different materials, and the façade as a whole, perform in the event of a fire. This paper discusses the drivers for flammability in facades, the interaction of facade materials, and current gaps in knowledge. In doing so, it aims to provide an introduction to the field of façade fires, and to show that because of the drive for thermal efficiency and sustainability, façade systems have become more complex over time, and they have also become more flammable. We discuss the importance of quantifying the flammability of different façade systems, but highlight that it is currently impossible to do so, which hinders research progress. We finish by putting forward an integral framework of design that uses multi-objective optimization to ensure that flammability is minimized while considering other objectives, such as maximizing thermal performance or minimizing weight.

• 국제초고층학회논문집
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• 제7권2호
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• pp.145-151
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• 2018

Newly-designed high-rise buildings, both in China and abroad, have demonstrated new innovations from the creative concept to the creative method. from the creative concept to the creative method. At the same time, digital technology has enabled more design freedom in the vertical dimension. "Twisting" has gradually become the morphological choice of many city landmark buildings in recent years. The form seems more likely to be driven by the interaction of aesthetics and structural engineering. Environmental performance is often a secondary consideration; it is typically not simulated until the evaluation phase. Based on the research results of "DigitalFUTURE Shanghai 2017 Workshop - Wind Tunnel Visualization", an approach that can be employed by architects to design environmental-performance buildings during the early stages has been explored. The integration of a dynamic form-finding approach (DFFA) and programming transforms the complex relationship between architecture and environment into a dialogue of computer language and dynamic models. It allows the design to focus on the relationship between morphology and the surrounding environment, and is not limited to the envelope form itself. This new concept of DFFA in this research consists of three elements: 1) architectural form; 2) integration of wind tunnel and dynamic models; and 3) environmental response. The concept of wind tunnel testing integrated with a dynamic model fundamentally abandons the functional definition of the traditional static environment simulation analysis. Instead it is driven by integral environmental performance as the basic starting point of morphological generation.

• 국제초고층학회논문집
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• 제9권2호
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• pp.167-173
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• 2020

W-Project is 60-story mixed-use residential building complex project in Daegu, the third biggest city in South Korea. There are lots explorable items to be solved to secure structural safety and meet the serviceability requirements. This paper describes what kind of structural system is optimized based on the architectural requirements and structural components design and the grade of concrete strength altered on floors. The defining process of lateral resisting system of outrigger compared to the core ratio of typical plan is illustrated in detail.

• 국제초고층학회논문집
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• 제6권1호
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• pp.21-31
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• 2017

Jeddah Tower will be the first man-made structure to reach a kilometer in height upon its completion in 2019. From conception, it was clear that an all-concrete superstructure would present many advantages for a building of such unprecedented height and slenderness. An all-concrete structure, however, did present many challenges that needed to be addressed in the system arrangement and through comprehensive analysis and design, among them vertical shortening effects due to the time-dependent creep and shrinkage of concrete. This paper outlines and presents the engineering solutions developed by the authors regarding this complex concrete material phenomenon, while addressing the construction and regional challenges associated with realizing a concrete tower of this unprecedented scale.

• 국제초고층학회논문집
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• 제6권2호
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• pp.149-163
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• 2017

With the intensification of urban development in Chinese cities, mixed land use in urban centers extends vertically into 3-D and expands its scale from a single building to commercial clusters. The multi-level pedestrian system in city centers also changed its role from one of traffic isolation to spatial integration, where transit nodes, street sidewalks, squares, building entrances, atriums, and corridors are interconnected, both horizontally and vertically, into a whole spatial system, within which pedestrian flows are guided and shopping facilities are arranged. This paper uses spatial configuration analysis of space syntax to examine the impacts of spatial patterns on movement distribution and the business performance of tenant mix in the multi-level commercial system of the Nanshan Commercial Cultural District in Shenzhen, China. The key objective is to better understand the interactions between the socio-economic variables and spatial design parameters of a shopping complex. The research findings point to the importance of multiplicity between syntactic variables and other spatial variables in influencing the pedestrian flows, business performance and tenant mix in highly complex commercial systems. Particularly noteworthy is the relationship between spatial accessibility measures and the location of escalators, and the ways in which individual commercial buildings are embedded into the overall spatial system. The study suggests that this may lead to the preliminary identification of the spatial qualities of effective vertical extensions of mixed land use in a high-density urban settings.

• 한국디지털건축인테리어학회논문집
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• 제12권4호
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• pp.107-116
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• 2012

Planning a major change in the domestic residential complex 'complex' in the 'city' to the influx of urban space. So, considering a set of self-environmental complex of openness and connectivity between cities inflow from residential urban housing is formed. Complex-oriented development approach and apartment high-rise and high-density regions of space and social disconnection that causes a uniform methodology that can solve the problem of housing plan, however, a recent New Urbanism New Urbanism has been introduced. And intravenous forms of communal life that occurred in the United States prior to World War II, this value is based on the main form. Design reorganizes This modern lifestyle factors (such as housing, jobs, shopping, leisure space) to go back to the traditional lifestyles while Neotradiotional Planning exercise. New Urbanism in the late 20th century, some literature refers to a postmodern approach adopted in the field of urban planning, the specific case. Actually important feature of post-modernism in the New Urbanism has been expressed. Problem is very confusing, and the principles of New Urbanism, New Urbanism, even those who claim that have different social and design views. Therefore, this study explores the postmodern tendencies of the New Urbanism, and based on this, the possibilities for the development of new towns in Korea mainly affected on the theory of New Urbanism in South Korea in Eunpyeong examine.

• 한국주거학회논문집
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• 제16권5호
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• pp.117-125
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• 2005

Since Mapo Apartment was introduced as a new urban housing type in the early sixties, apartment has been a typical urban housing in our country. In these days, according to various life-styles and new attitudes about the quality of life, apartment has been developed in various types like high rise residential complex and apartments with special themes. This study has been focused on the transition of modem urban housing in France. The origin of a word, apartment, has been defined and history of apartment in French urban life has been analyzed focusing on the common space and community facilities. Representative apartments in the 18th, 19th and 20th century were selected and comparatively analyzed. Especially in the 19th century, urban housing for working class had been a major concern among the communist and the bourgeoisie and has its own characteristics relative to each other. The characteristics shown in the apartment by the communist in France have been followed in the Korean apartments since 1960's, then the recent trends are rapidly changing in the housing market in Korea. Thus, the findings of this study can be very useful to understand the recent changes of diverse housing types in our society and also be very helpful to prospect our urban housing types in the future according to the changes of new lift styles.