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http://dx.doi.org/10.9712/KASS.2018.18.1.93

A Case Study of Retraction Controlled Wind Velocity on the Steel Retractable Roof of Large Span  

Song, Jin-Young (Dept. of Architecture, Seoul National University of Science and Technology)
Yoon, Sung-Won (School of Architecture, Seoul National University of Science and Technology)
Publication Information
Journal of Korean Association for Spatial Structures / v.18, no.1, 2018 , pp. 93-100 More about this Journal
Abstract
The retractable roof structures have actions of various types of loads and external forces depending on the retraction and operation conditions of the roof in terms of efficiency of control and maintenance as the aspect of structural plan. In particular, there is a need for studies on the establishment of retraction controlled wind velocity to maintain the stable control and usability of roof structure against strong winds or sudden gusts during the retraction of the roof. In this paper, it was intended to provide basic materials for the development of guidelines on the operation and maintenance of domestic retractable buildings with large space by analyzing the factors affecting the retraction controlled wind velocity for the overseas stadiums with the large spatial retractable roof structures where the sliding system was applied on the steel retractable systems. As a result, the controlled wind velocity tends to decrease as the retractable roof area increases. On the other hand, the controlled wind velocity tends to increase as the retraction time increases. In addition, in the space-grid roof structures, the spherical roof structures type showed the average controlled wind velocity of 10m/sec lower than that of 17.3m/sec for curved-roof structure type, and in the curved-roof structure type, the truss roof structure showed the average controlled wind velocity of 8.9m/sec which is lower than that of 17.3m/sec for the space for the space-grid roof structure.
Keywords
Steel retractable structure; Sliding system; Retraction controlled wind velocity; Wind load;
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