Wind-induced response of a large cantilevered roof

Kawai, Hiroyuki; Yoshie, Ryuichiro; Wei, Ruihua; Shimura, Masayuki

doi:10.1016/s0167-6105(99)00077-x

Cited by 31 publications

(12 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These types of records occur at Points 3, 7 and 8, excited by wind with speeds of 9 m/s and 12 m/s. This phenomenon may be attributed to the negative aerodynamic damping, indicating that the dynamic interaction may induce unstable fl utter-like vibration as observed by Kawai et al (1999).…”

Section: Aerodynamic Dampingmentioning

confidence: 91%

“…Il'chenko and Temnenko (1993) studied the free oscillations of a piece of membrane that is orthogonal to an infl owing stream, where a numerical hydrodynamic scheme was applied to analyze the structural response and the infl uence of aerodynamic damping. Kawai et al (1999) discussed the fl utter-like vibrations of a cantilevered roof based on an aero-elastic wind tunnel test. It was shown that the vibrations occurred from a particular wind velocity due to the lowered natural frequency, which was induced by the positive aerodynamic stiffness and the vortex-excited negative damping.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Experimental study on interaction between membrane structures and wind environment

Yang

Wei

2010

Earthq. Eng. Eng. Vib.

View full text Add to dashboard Cite

The interaction between membrane structures and their environment can be either static or dynamic. Static interaction refers to interaction with static air, while dynamic interaction refers to wind and its effects. They can be evaluated by two parameters, added mass and radiation /aerodynamic damping, which are experimentally investigated in this study. The study includes the effects of both the static and dynamic interaction on structural dynamic characteristics, and the relationship between the interaction parameters and the covered area of a membrane structure for the static interaction and the relationship between the interaction parameters and wind direction and speed for the dynamic interaction. Experimental data show that the dynamic interaction is strongly correlated with the structural modes, i.e., the interaction of the symmetric modes is much larger than the anti-symmetric modes; and the infl uence of the dynamic interaction is signifi cant in wind-induced response analysis and cannot be ignored. In addition, it is concluded that the structural natural frequency is remarkably decreased by this interaction, and the frequency band is signifi cantly broadened.

show abstract

Section: Aerodynamic Dampingmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Experimental study on interaction between membrane structures and wind environment

Yang

Wei

2010

Earthq. Eng. Eng. Vib.

View full text Add to dashboard Cite

show abstract

“…Generally, the scientific literature proposes simplifications of experimental tests as for example simplified maps of pressure coefficients [22,23] or parametrical studies of the structural dynamics [19]. However, the most of literature examples are focused on specific cases of study [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] that sometimes are not generalizable.…”

Section: Introductionmentioning

confidence: 99%

Geometrically Nonlinear Analyses of Tensile Structural Systems: Wind-Structure Interaction

Giovanni¹,

Taddeo²

2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

View full text Add to dashboard Cite

Tensile structural systems as for example cables nets, suspended bridges or membranes usually have nonneglecting p-delta effects under wind action. Consequently, great displacements give a geometrically nonlinear structural behavior. In addition, the wind action is nonlinear spatially and time depending. This closely affect the dynamic interaction between loads and structure. For this reason, the calculation process needs to take into account the timedepending nonlinear response of the structure. Finally, the wind action can be critical for structural and it can induce global or local instability. Analyses has to be able to capture and to describe the instability response in term of displacements, in the case of cables net, or rotations, in the case of suspended bridges. The paper is focused on the wind-structure interaction analyses carried out by wind tunnel experiments. The wind action is generally given by wind tunnel experiments, and it is time depending. For roofs, it generally is given as pressure time histories measured by some pressure taps on the roof. The process from experiments to structural response is described using a case of study of cables net. The dynamic geometrically nonlinear analyses were performed using the TENSO non-commercial program, which can execute dynamic step-by-step integration of the nonlinear three-dimensional structure with geometric nonlinearities by the Newmark-Beta method with Rayleigh damping.

show abstract

“…The literature discusses a great number of examples of wind tunnel test campaigns [11,[15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]. However, all references regard particular cases that are not generalizable for different geometries.…”

Section: Introductionmentioning

confidence: 99%

Mode Pressure Coefficient Maps as an Alternative to Mean Pressure Coefficient Maps for Non-Gaussian Processes: Hyperbolic Paraboloid Roofs as Cases of Study

Viskovic

2018

Computation

View full text Add to dashboard Cite

Wind tunnel experiments are necessary for geometries that are not investigated by codes or that are not generally and parametrically investigated by literature. One example is the hyperbolic parabolic shape mostly used for cable net roofs, for which codes do not provide pressure coefficients and literature only gives mean, maxima, and minima pressure coefficient maps. However, most of pressure series acquired in wind tunnels on the roof are not Gaussian processes and, for this reason, the mean values are not precisely representative of the process. The paper investigates the ratio between mean and mode of pressure coefficient series acquired in wind tunnels on buildings covered with hyperbolic paraboloid roofs with square plans. Mode pressure coefficient maps are given as an addition to traditional pressure coefficient maps.

show abstract

Wind-induced response of a large cantilevered roof

Cited by 31 publications

References 2 publications

Experimental study on interaction between membrane structures and wind environment

Experimental study on interaction between membrane structures and wind environment

Geometrically Nonlinear Analyses of Tensile Structural Systems: Wind-Structure Interaction

Mode Pressure Coefficient Maps as an Alternative to Mean Pressure Coefficient Maps for Non-Gaussian Processes: Hyperbolic Paraboloid Roofs as Cases of Study

Contact Info

Product

Resources

About