Browse > Article
http://dx.doi.org/10.5762/KAIS.2017.18.2.737

Characteristics of Building Structural System with IsoTruss® Grid  

Kim, Tae-Heon (Department of Architectural Engineering, Pukyong National University)
Kim, Young-Chan (Department of Architectural Engineering, Pukyong National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.2, 2017 , pp. 737-742 More about this Journal
Abstract
Recently, unconventional high-rise building shapes have attracted attention as a landmark of metropolitan cities and the search for innovative building forms in architecture is ongoing. In this study, $Isotruss^{(R)}$ grid(ITG) used in smaller scale structures was applied to building structural systems and its structural performance was examined. The structural behavior of an ITG was compared with that of a diagrid structure as a reference structure. The stiffness-based design method of the diagrid system was used for the preliminary design stage of member sizing in an ITG. The structural design of 16, 32, and 48-story buildings was carried out for the two systems with the same size. The angle of the inclined columns for ITG and diagrid was $59^{\circ}$ and $68.2^{\circ}$, respectively. The lateral stiffness, steel tonnage of the exterior frame, axial strength ratio, story drift ratio, and natural frequency of the two systems were compared. Based on the analysis result of 6 buildings, the two systems had similar structural capacity; 93.3% and 88.7% of the lateral load was carried by the perimeter frame in the ITG system and diagrid system, respectively. This suggests that the ITG system is better in arranging core columns. Therefore, the proposed ITG system has not only a unique façade, but also substantial structural capacity equivalent to the existing system.
Keywords
Diagrid system; High-rise building; $Isotruss^{(R)}$; Preliminary design; Structural design;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Mir M. Ali, K. S. Moon, Structural Development in Tall Buildings: Current Trends and Future Prospects, Architectural Science Review, vol. 50.3, pp. 205-223, 2007. DOI: https://doi.org/10.3763/asre.2007.5027   DOI
2 IsoTruss$^{(R)}$homepage, http://www.isotruss.com/
3 K. S. Moon, J. J. Connor, J. E. Fernandez, Diagrid Structural Systems for Tall Buildings: Characteristics and Methodology for Preliminary Design, The Structural Design of Tall and Special Buildings, vol. 16.2, pp. 205-230, 2007. DOI: https://doi.org/10.1002/tal.311   DOI
4 T. H. Kim, H. U. Lee, H. J. Jeong, Y. C. Kim, Investigation of Optimal Angle for Diagonal Member in Building Structures with IsoTruss${(R)}$ System, Proceedings of the 2015 International Symposium on Advanced Engineering, Busan, Korea, pp. 403-404.
5 Ministry of Land, Infrastructure and Transport, Korean Building Code-Structural, pp. 41-190, 2016.
6 MIDAS, Gen2017, v855 R2.