Browse > Article
http://dx.doi.org/10.21022/IJHRB.2019.8.2.83

The Effect of Slenderness on the Design of Diagrid Structures  

Mele, Elena (Dept. of Structures for Engineering and Architecture, University of Naples Federico II)
Imbimbo, Maura (Dept. of Civil and Mechanical Engineering, University of Cassino and Southern Lazio)
Tomei, Valentina (Engineering Area, Niccolo Cusano University)
Publication Information
International Journal of High-Rise Buildings / v.8, no.2, 2019 , pp. 83-94 More about this Journal
Abstract
Diagrid structures have emerged in recent decades as an innovative solution for tube tall buildings, capable of merging structural efficiency and aesthetic quality. This paper investigates the effect of the building slenderness (grossly quantified by means of the aspect ratio, i.e., the ratio between the height and the plan dimension) on the structural behavior and on the optimal design parameters of diagrid tall buildings. For this purpose, building models with different slenderness values are designed by adopting preliminary design criteria, based on strength or stiffness demands; in addition, a design method based on a sizing optimization process that employs genetic algorithms is also proposed, with the aim to compare and/or refine the results obtained with simplified approaches.
Keywords
Tall buildings; Diagrid; Steel structures; Slenderness; Structural optimization;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Montuori, G. M., Mele, E., Brandonisio, G., and De Luca, A. (2014a). "Geometrical patterns for diagrid buildings: Exploring alternative design strategies from the structural point of view". Engineering Structures, 71, 112-127.   DOI
2 Montuori, G. M., Mele, E., Brandonisio, G., and De Luca, A. (2014b). "Secondary bracing systems for diagrid structures in tall buildings". Engineering Structures, 75, 477-488.   DOI
3 Moon, K. S., Connor, J. J., and Fernandez, J. E. (2007). "Diagrid structural systems for tall buildings: Characteristics and methodology for design". Struct. Design Tall Spec. Build., 16, 205-230.   DOI
4 Moon, K. S. (2008). "Material-Saving Design Strategies for Tall Building Structures" CTBUH 8th World Congress.
5 Preisinger, C. (2008). KARAMBA: parametric structural modeling (Computer software), www.karamba3d.com.
6 Rutten, D. (2007). GRASSHOPPER: generative modeling for Rhino (Computer software), www.grasshopper3d.com
7 Sadek, F. H. (2005). Baseline structural performance and aircraft impact damage analysis of the World Trade Center Towers. NIST NCSTAR 1-2. Federal Building and Fire Safety Investigation of the World Trade Center Disaster. Building and Fire Research Laboratory-National Institute of Standards and Technology.
8 Tomei, V., Imbimbo, M., and Mele, E. (2018). "Optimization of structural patterns for tall buildings: The case of diagrid". Engineering Structures, 171, 280-297.   DOI
9 De Luca, A., Di Fiore, F., Mele, E., and Romano, A. (2003). The collapse of the WTC twin towers: preliminary analysis of the original design approach. In Fourth International Conference STESSA 2003. Behaviour of Steel Structures in Seismic Areas, Naples, Italy, 9-12 June 2003; 81-87.
10 EN 1991-1-1. (2002). Eurocode 1: Actions on structures.
11 EN 1993-1-1. (2005). Eurocode 3: Design of steel structures.
12 Goldberg, D. E. (1989). Genetic Algorithms in Search, Optimization, and Machine Learning. Addison-Wesley.
13 McNeel, R. (1998). RHINOCEROS: NURBS modeling for Windows (Computer software), www.rhino3d.com.
14 Montuori, G. M., Mele, E., Brandonisio, G., and De Luca, A. (2013). "Design criteria for diagrid tall buildings: stiffness versus strength". Struct Design Tall Spec Build 23(17), 1294-1314.   DOI
15 Mele, E., Toreno, M., Brandonisio, G., De Luca, A. (2014). “Diagrid structures for tall buildings: case studies and design considerations”. Struct Design Tall Spec Build, 23, 124-145.   DOI