Design criteria for diagrid tall buildings: Stiffness versus strength

Montuori, Giovanni Maria; Mele, Elena; Brandonisio, Giuseppe; Luca, A. De

doi:10.1002/tal.1144

Cited by 53 publications

(46 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The word diagrid, a combination of diagonal and grid, was used by researchers as early as 1970 when they studied elastic and plastic behavior of simple rectangular uniform diagonal grids and tried to find formulas for their collapse loads . Recently, however, the design and linear and nonlinear behavior of tall diagrid structures have attracted several researchers …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Diagrid: An innovative, sustainable, and efficient structural system

Asadi

Adeli

2017

Struct Design Tall Spec Build

View full text Add to dashboard Cite

Summary In recent years, diagrid structures have received increasing attention among both designers and researchers of tall buildings for creating one‐of‐a‐kind signature structures. This paper presents a state‐of‐the‐art review of diagrid structures. First, various diagrid configurations, main factors affecting their behaviors, and related design parameters and approaches are discussed. Then, diagrid applications for free‐form steel and concrete structures are introduced showing the diagrid applicability for complex structures followed by recent advances in structural design of diagrid connections, diagrid nonlinear behavior, and structural control of diagrids. Recent studies about a new variation of tubular and diagrid systems, hexagrids, are discussed briefly. Finally, the diagrid potential in design of sustainable buildings is delineated.

show abstract

Section: Introductionmentioning

confidence: 99%

“…[7,8] Recently, however, the design and linear and nonlinear behavior of tall diagrid structures have attracted several researchers. [6,[9][10][11] This paper presents a state-of-the-art review of diagrid structures.…”

Section: Introductionmentioning

confidence: 99%

Diagrid: An innovative, sustainable, and efficient structural system

Asadi

Adeli

2017

Struct Design Tall Spec Build

View full text Add to dashboard Cite

show abstract

“…The problem of polygonal-section diagrid systems was investigated by Liu and Ma (2017). In the research done by Montuori et al (2014), strength criteria, in addition to stiffness requirements, is examined in preliminary design of diagrid systems.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of high-rise buildings with respect to fundamental eigenfrequency

Alavi

Rahgozar

Torkzadeh

et al. 2017

Int J Adv Struct Eng

View full text Add to dashboard Cite

In modern tall and slender structures, dynamic responses are usually the dominant design requirements, instead of strength criteria. Resonance is often a threatening phenomenon for such structures. To avoid this problem, the fundamental eigenfrequency, an eigenfrequency of higher order, should be maximized. An optimization problem with this objective is constructed in this paper and is applied to a high-rise building. Using variational method, the objective function is maximized, contributing to a particular profile for the first mode shape. Based on this preselected profile, a parametric formulation for flexural stiffness is calculated. Due to some near-zero values for stiffness, the obtained formulation will be modified by adding a lower bound constraint. To handle this constraint some new parameters are introduced; thereby allowing for construction of a model relating the unknown parameters. Based on this mathematical model, a design algorithmic procedure is presented. For the sake of convenience, a single-input design graph is presented as well. The main merit of the proposed method, compared to previous researches, is its hand calculation aspect, suitable for parametric studies and sensitivity analysis. As the presented formulations are dimensionless, they are applicable in any dimensional system. Accuracy and practicality of the proposed method is illustrated at the end by applying it to a real-life structure.

show abstract

“…Moreover, the increasing demand for business and residential space have denoted the scarcity of land, constraining the wide use of high-rise structures in modern cities and facing relatively new criticalities, such as inappropriate ground typologies and areas of severe seismicity. Due to their intrinsic complex features and large dimensions [4,5], several peculiar characteristics shall be considered during the design phase, ensuring the achievement of certain performance levels (i.e. collapse prevention, moderate damage, serviceability) and the evaluation of the characterizing mechanical aspects such as higher mode and longer periods in earthquake assessment [1,6].…”

Section: Introductionmentioning

confidence: 99%

Dissipating Effect of Glazed Curtain Wall Stick System Installed on High-Rise Mega-Braced Frame-Core Buildings Under Nonlinear Seismic Excitation

Casagrande¹,

Bonati²,

Auricchio³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

Abstract. The results derived from the investigation on the dynamic behavior of glazed curtain wall non-structural stick systems installed in modern high-rise mega-frame prototypes is herein summarized. The supporting steel structures, designed in accordance with European rules, consisted of planar frames extracted from reference three-dimensional steel Moment Resisting Frame (MRF), respectively having thirty-and sixty-storey height. To limit interstorey drift and second order effects, outriggers trusses were placed every fifteen stories, whilst a CBF system was chosen as internal core. The characterization of non-structural façade elements was performed through experimental full-scale crescendo-tests on aluminium/glass curtain wall units. Deriving experimental force-displacement curves, it was possible to calibrate threedimensional inelastic FE models, capable to simulate the interaction between glass panels and aluminium frame. Subsequently, equivalent nonlinear links were calibrated to reproduce the dynamic behaviour of tested glazed unit, and implemented in the thirty-and sixty-storey structural planar frames FE models. Nonlinear time history analyses (NLTHAs) were performed to quantify local and global performance, investigating the enhanced combination of stiffness and strength generated through the implementation of glazed curtain wall on the numerical FE models. Results will be shown in terms of inter-storey drift profiles and displacement peaks, axial force curves and percentage peak variation, showing the sensitivity to the structure height. Trends were discussed to show that, if accurately designed, omitting non-structural elements from the seismic assessment of high-rise prototypes conduct to a sensible underestimation of dynamic dissipation capacity of the building.

show abstract

Design criteria for diagrid tall buildings: Stiffness versus strength

Cited by 53 publications

References 8 publications

Diagrid: An innovative, sustainable, and efficient structural system

Diagrid: An innovative, sustainable, and efficient structural system

Optimal design of high-rise buildings with respect to fundamental eigenfrequency

Dissipating Effect of Glazed Curtain Wall Stick System Installed on High-Rise Mega-Braced Frame-Core Buildings Under Nonlinear Seismic Excitation

Contact Info

Product

Resources

About