국제초고층학회논문집 (International Journal of High-Rise Buildings)

  • 제7권3호
  • /
  • Pages.255-264
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  • 2018
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  • 2234-7224(pISSN)
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  • 2288-9930(eISSN)
한국초고층도시건축학회 (Council on Tall Building and Urban Habitat Korea)
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Structural Design and Construction for Tall Damped Building with Irregularly-Shaped Plan and Elevation

  • Yamashita, Yasuhiko (Structural Engineering Section, Design Department, Osaka Main Office, Takenaka Corporation) ;
  • Kushima, Soichiro (Structural Engineering Section, Design Department, Osaka Main Office, Takenaka Corporation) ;
  • Okuno, Yuuichirou (Structural Engineering Section, Design Department, Osaka Main Office, Takenaka Corporation) ;
  • Morishita, Taisei (Structural Engineering Section, Design Department, Osaka Main Office, Takenaka Corporation)
  • 발행 : 2018.09.30
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초록

This paper introduces three distinctive means for the use of a 189-meter high damped structure ensuring safety against earthquake: 1. Realization of L-shaped elevational structural planning: The bottom and top of the tower have belt trusses and hat trusses respectively to restrain the bending deformation. Furthermore, large-capacity oil dampers (damping force 6,000 kN) are installed in the middle part of the tower to restrain the higher-mode deformation. 2. Realization of L-shaped planar structural planning: We devised a means of matching the centers of gravity and rigidity by adjusting planar rigidity. Moreover, viscous damping devices are located at the edges of the L-shaped plan, where torsional deformation tends to be amplified. We call this the "Damping Tail" system. 3. Composite foundation to equalize deformations under different loading conditions: We studied the vertical and horizontal deformations using sway-rocking and 3D FEM models including the ground, and applied multi-stage diameter-enlarged piles to the tower and a mat foundation to the podium to keep the foundations from torsional deformations and ensure structural safety.

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참고문헌

  1. Hirai, Y., Wakai, S. and Aoki, M. (2015): In-site pull-out tests of cast-in-place concrete piles with belled enlargements. 15ARC.
  2. Okawa, I., Saito, T., Satoh, T., Sato, Kitamura, H., Torii, S., Tsuji, Y., Kitamura, Y., Fujita, S., Sekiya, Y., Seki, M,. (2010). Study on the Safety Countermeasures for Super- High-Rise Buildings etc. against the Long-Period Earthquake Ground Motions, Building Research Data, Building Research Inst., Incorporated Administrative Agency, No. 127, pp. 521-530.
  3. Shiomi, T., Yoshizawa, M., Onimaru, S. and Tsukuni, S. (1998). Development of structural analysis system considering non-linear behaviors of soil and structure, Takenaka technical research report, No. 54, pp. 1-8. (in Japanese)
  4. Yamamoto, M., Minewaki, S., Nakahara, M., and Tsuyuki, Y. (2016). Concept and performance testing of a highcapacity oil damper comprising multiple damper units, Earthquake Engineering and Structural Dynamics, doi: 10.1002/eqe.2728.