• Journal of the Earthquake Engineering Society of Korea
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• v.1 no.3
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• pp.29-35
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• 1997

The megastructure combined with the modular concept is an effcient structural system adequate for ultra-tail buildings for the future. An ingeneous structural control system can be developed by separating the internal subframe in one or many modules from the external megaframe, thus taking advantage of the effect of tuned mass dampers without adding any aditional mass. This so called mega-subcontrol system is generally modeled by a 20DF system for parametric study and for finding optimal values of the parameters. In this study the equation of motion for the system is obtained frist and the preconditions for the simplified modeling are investigated. Finally the optimal value for the subsreucture strffness is fomputed with given mass and damping ratios and transfer functions for responses are abtained for white noise ground exitation to verify the effectiveness of the mega-subcontrol system.

• Korean Institute of Interior Design Journal
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• no.19
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• pp.45-52
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• 1999

This study is on Buckminster Fuller, who is generally known as a structure engineering architect, and his influences. Fuller's radical and utopian ideas and designs were regarded as 'paper architecture'. But considering today's high cost of energy and the limited natural resources, Fuller's Dymaxion theory must be re-evaluated. Fuller's influences on the contemporary architecture are summarized as follows. 1) His idea of controlling the environment through the use of technology influenced today's 'High-Tech' architects. Architecture is no-longer designed purely by its formal character, but becomes a tool of investigating environmental significance of modern technology. 2) Through systemizing mechanical equipment, Dymaxion House prototype, and aggregation of high-tech mechanical equipments, influenced Archigram & Metabolist's capsule idea. It is expressed as a plug-in module equipment of 'High-Tech' architecture which has flexible interior with mechanical exterior image. 3) Megastructure. The Manhattan dome project gave an influence to many engineer/architects who tried to achieve an ideal artificial environment. This is in connection to 1960's utopian projects. Today's megastructures show new possibilities in urbanism and architecture. Fuller's comprehensive idea of humans living in harmony in the universe shows possibilities not only in structural engineering, but in solving various problems that confront today's architecture.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.34 no.9
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• pp.97-106
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• 2018

Oswald Mathias Ungers and Colin Rowe are likely to be classified as Neo-rationalists, Typologists, and Contextualists with Aldo Rossi and Krier brothers. In urban theory, Ungers and Rowe opposed modern urbanism and also rejected the methodology of mat-building and megastructure. Teaching at Cornell, Rowe suggested Collage City purposing the concept of Bricollage while Ungers advanced City in the City and Dialectic City. Their theories look similar, however, in detail, they strongly differ in interpretation from the context, plurality, and layer as well as the view of contemporary society and urbanism. Rowe, whose nostalgic approach adhered to Nolli's Rome, had a tendency toward formalist however, Ungers was a realist who was interested in the new type of modern city. The main objective of this study is to analyze the commonalities and differences between theses two urban theories carefully, to trace the causes of the differences in perspectives, and thereby to consider their impact on the present.