Small and Large Displacement Dynamic Analysis of Frame Structures Based on Hysteretic Beam Elements

Triantafyllou, Savvas P.; Koumousis, V. K.

doi:10.1061/(asce)em.1943-7889.0000306

Cited by 21 publications

(12 citation statements)

References 37 publications

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“…Using the flexibility‐based method results in a differential algebraic equation (DAE) system rather than an ODE (ordinary differential equation) system; however, a DAE system is more difficult to solve by standard mathematical software program (eg, Matlab) compared to an ODE system. Thus, in this study, a stiffness‐based method (ie, displacement interpolation) is adopted for the formulation of a two‐dimensional Euler‐Bernoulli beam element in state‐space form, following the formulation of Triantafyllou and Koumousis . The only modification made in the formulation is that instead of using interpolating hysteretic parameters across the beam, they are treated as independent state variables.…”

Section: Numerical Modelmentioning

confidence: 99%

“…Thus, in this study, a stiffness-based method (ie, displacement interpolation) is adopted for the formulation of a two-dimensional Euler-Bernoulli beam element in state-space form, following the formulation of Triantafyllou and Koumousis. 32 The only modification made in the formulation is that instead of using interpolating hysteretic parameters across the beam, they are treated as independent state variables. By assigning appropriate inertia components, this formulation results in an ODE system.…”

Section: Numerical Modelmentioning

confidence: 99%

See 1 more Smart Citation

Extreme behavior in a triple friction pendulum isolated frame

Becker

Bao

Mahin

2017

Earthq Engng Struct Dyn

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Summary While isolation can provide significantly enhanced performance compared to fixed‐base counter parts in design level or even maximum considered level earthquakes, there is still uncertainty over the performance of isolation systems in extreme events. Researchers have looked at component level stability of rubber bearings and on the effect of moat impact on behavior of structures isolated on general bilinear isolators. However, testing of triple friction pendulum (TFP) sliding bearings has not been done dynamically or incorporated into a building system. Here, one‐third scale laboratory tests were conducted to on a 2‐story 2‐bay TFP‐isolated structure. Input motions were increasingly scaled until failure occurred at the isolation level. As the superstructure was designed with a yield force equivalent to the force of the bearing just at their ultimate displacement capacity, there was minimal yielding. A numerical model is presented to simulate the isolated building up to and including bearing failure. Forces transferred to the superstructure in extreme motions are examined using both experimental and numerical data. Additionally, the effect of the hardening stage of the TFP bearing is evaluated using the numerical model, finding slight benefits.

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Section: Numerical Modelmentioning

confidence: 99%

Section: Numerical Modelmentioning

confidence: 99%

Extreme behavior in a triple friction pendulum isolated frame

Becker

Bao

Mahin

2017

Earthq Engng Struct Dyn

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“…Bouc-Wen model has been used to describe hysteretic behaviour [8] in many mechanical and structural fields, including beam members [9,10], concrete walls [11], seismic isolation devices [12], wood joints [13], magneto-rheological fluid dampers [14,15], to cite some.…”

Section: Cyclic Constitutive Laws For the Flexural And Shear Hingesmentioning

confidence: 99%

A Nonlinear Macroelement Formulation for the Seismic Analysis of Masonry Buildings

Liberatore¹,

Addessi²,

Sangirardi³

2017

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

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“…Consequently, convenient algorithms were developed in this area of structural engineering [1]. For instance, we can mention contributions that range from fluid-structure interaction [2,3] to robotics [4], from cable networks [5] to buckling [6], from elasto-plasticity [7] to dynamics [8].…”

Section: Introductionmentioning

confidence: 99%