Sharif Digital Repository

Evaluating the damage in steel MRF under near field earthquakes from a performance based design viewpoint

Author

Rofooei, F. R.

Pub. Year

2011

Subjects

Damage assessment. / Performance levels. / Damage assessments. / Damage index. / Global damage index. / Ground motions. / Interstory drifts. / Maximum values. / Near-field. / Near-field earthquakes. / Nonlinear dynamic time-history analysis. / Performance assessment. / Performance based design. / Performance level. / Quantitative measurement. / Steel moment resisting frame. / Steel MRF. / Strong ground motion. / Structural models. / Earthquake effects. / Model structures. / Nonlinear analysis. / Rating. / Structural design. / Structural frames. / Three dimensional. / Damage detection.

A new study in designing MTMDs in SDOF and MDOF systems based on the spectral analysis method

Author

Baigoly, M.

Publisher

Techno-Press,

Pub. Year

2020

Subjects

Harmony Search (HS) algorithm. / Multi-Degree-Of-Freedom (MDOF) structure. / Multiple Tuned Mass Dampers (MTMDs) / Random vibration. / Spectral analysis. / Forecasting. / Hydraulic structures. / Spectrum analysis. / Engineering structures. / Frequency ratios. / Innovative techniques. / Maximum displacement. / Random vibration theory. / SDOF and MDOF systems. / Spectral analysis method. / Time history analysis. / Structural design.

A structural model updating method using incomplete power spectral density function and modal data

Author

Esfandiari, A.

Publisher

Techno Press,

Pub. Year

2018

Subjects

Frequency response function. / Modal data. / Sensitivity-based model updating. / Frequency estimation. / Frequency response. / Modal analysis. / Spectral density. / Frequency domain model. / Frequency response functions. / Least square approach. / Model updating. / Power spectral densities (PSD) / Sensitivity equations. / Structural model updating. / Power spectral density.

Dynamic behavior and modal control of beams under moving mass

Author

Nikkhoo, A.

Publisher

Academic Press,

Pub. Year

2007

Subjects

Approximation theory. / Feedback control. / Linear control systems. / Modal analysis. / Problem solving. / Approximate formulation. / Dynamic behavior. / Euler-Bernoulli beams. / Beams and girders.

Evaluation of a robust dynamic vibration absorber based on negative stiffness and internal resonance against seismic excitation

Author

Harouni, P.

Publisher

Elsevier Ltd,

Pub. Year

2022

Subjects

Earthquake record. / Nonlinear absorber. / Damage detection. / Differential equations. / Resonance. / Stiffness. / Active control. / Condition. / Damage index. / Dynamic vibration absorber. / Earthquake damages. / Earthquake records. / Internal resonance. / Negative stiffness. / Nonlinear absorbers. / Seismic excitations. / Earthquakes.

Controlling the seismic response of structures under near-field earthquakes with fluid/structure interaction of cylindrical liquid tanks

Author

Waezi, Z.

Publisher

Taylor and Francis Ltd,

Pub. Year

2022

Subjects

Cylindrical liquid tank. / Near-field earthquake. / Nonlinear interaction. / Degrees of freedom (mechanics) / Dynamic response. / Energy transfer. / Liquid sloshing. / Seismic response. / Steel beams and girders. / Tanks (containers) / Ultrasonic devices. / Cylindrical liquid tanks. / Fluid oscillations. / Multi degree of freedom systems. / Near-field earthquakes. / Non-linear fluids. / Nonlinear interactions. / Response reductions. / Structural systems. / Earthquakes.

Investigating the behavior of cracks in welded zones of supporting structure of spherical pressure vessel under seismic loading

Author

Tafazoli, S.

Publisher

Elsevier Ltd,

Pub. Year

2022

Subjects

Seismic loading. / Sloshing. / Stress intensity factor. / Aspect ratio. / Cracks. / Earthquakes. / Fluid structure interaction. / Spheres. / Stress analysis. / Stress intensity factors. / Welding. / Catastrophic failures. / Crack behavior. / Heat-affected zones. / Liquid level. / Mixed-mode stress intensity factors. / Seismic loadings. / Semi-elliptical crack. / Spherical pressure vessel. / Stress-intensity factors. / Supporting structure. / Pressure vessels.

The sloshing effects on the crack instability of the spherical tank under the simultaneous effect of internal pressure and earthquake

Author

Tafazoli, S.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Connection zone. / Crack. / Earthquake. / Sloshing motion. / Spherical tank.

Modal spectra combination method for pushover analysis of special steel moment resisting frames

Author

Rofooei, F. R.

Pub. Year

2012

Subjects

Lateral load pattern. / Nonlinear dynamic analysis. / Nonlinear static analysis. / Pushover analysis.

The seismic performance of K-braced cold-formed steel shear panels with improved connections

Author

Pourabdollah, O.

Publisher

Elsevier Ltd,

Pub. Year

2017

Subjects

Cold formed steel frame. / Ductility factor. / K-braced. / Secant stiffness. / Shear panel. / Buckling. / Ductility. / Energy absorption. / Energy dissipation. / Shear strength. / Stiffness. / Studs (fasteners) / Studs (structural members) / Cold-formed steel frames. / Ductility capacity. / Lateral stiffness. / Secant stiffness. / Seismic Performance. / Shear panels. / Shear resistances. / Shear flow.

On the performance of passivr TMDs in reducing the damage in 2-D concrete structural models

Author

Rofooei, F. R.

Pub. Year

2011

Subjects

Palm oil fuel ash. / Pozzolan. / Temperature. / Concrete mix. / Fuel ash. / Heat of hydration. / Mass concrete. / Naturally occurring. / OPC concretes. / Palm kernel shells. / Palm oil. / Partial replacement. / Peak temperatures. / Pozzolanic materials. / Structural models. / Temperature rise. / Test results. / Thermal cracking. / Concrete construction. / Cracking (chemical) / Fuels. / Hydration. / Model structures. / Models. / Portland cement. / Structural design. / Thermochemistry. / Vegetable oils.

Investigation on the seismic behavior of steel MRF with shape memory alloy equipped connections

Author

Rofooei, F. R.

Pub. Year

2011

Subjects

Shape memory alloy (SMA) / Austenite phase. / Base shear. / Beam-to-column connections. / Bi-directional. / Connection model. / Earthquake records. / Energy dissipation capability. / Moment-rotation. / Non-linear dynamic analysis. / Passive control devices. / Passive control system. / Residual strains. / Seismic behavior. / Shape memory alloy. / Similar analysis. / Steel moment resisting frame. / Steel MRF. / Structural models. / Superelastic effects. / Superelasticity. / Alloys. / Cerium alloys. / Computer simulation. / Dynamic response. / Earthquakes. / Energy dissipation. / Martensitic transformations. / Model structures. / Numerical analysis. / Seismic response. / Shape memory effect. / Spot welding. / Structural design. / Structural frames. / Unloading. / Mathematical models.

Quantification of the seismic performance factors for steel diagrid structures

Author

Sadeghi, S.

Publisher

Elsevier Ltd,

Pub. Year

2018

Subjects

Diagrid steel structures. / Nonlinear static analysis. / Seismic performance factors. / Dynamic analysis. / Seismic waves. / Seismology. / Static analysis. / Tall buildings. / Collapse capacities. / Displacement amplification. / FEMA P695. / Incremental dynamic analysis. / Modification coefficient. / Non-linear static analysis. / Seismic behavior. / Seismic performance. / Factor analysis.

Evaluation of the seismic performance factors for steel diagrid structural systems using FEMA P-695 and ATC-19 procedures

Author

Rofooei, F. R.

Publisher

Springer,

Pub. Year

2020

Subjects

Collapse capacity. / Diagrid structures. / Nonlinear dynamic analysis. / Nonlinear static analysis. / Seismic performance factors. / Steel structures. / Building codes. / Seismic waves. / Seismology. / Uncertainty analysis. / Coefficient methods. / Collapse capacities. / Geometric configurations. / Postbuckling behavior. / Response modification factors. / Seismic Performance. / Structural capabilities. / Structural systems. / Seismic design. / Architectural design. / Buckling. / Building code. / Compressive strength. / Ductility. / Geogrid. / Performance assessment. / Seismic hazard. / Seismic property. / Seismic response. / Standard (regulation) / Steel.

Addressing the epistemic uncertainty in seismic hazard analysis as a basis for seismic design by emphasizing the knowledge aspects and utilizing imprecise probabilities

Author

Ghods, B.

Publisher

Springer Science and Business Media B.V,

Pub. Year

2021

Subjects

Computer circuits. / Hazards. / Seismic response. / Trees (mathematics) / Uncertainty analysis. / California. / Epistemic uncertainties. / Hazard curves. / Imprecise probabilities. / Knowledge. / Logic tree. / Seismic hazard analysis. / Seismic hazards. / Strength of knowledge. / Tree structures. / Seismic design.

Application of mean-covariance regression methods for estimation of edp|im distributions for small record sets

Author

Ghods, B.

Publisher

Taylor and Francis Ltd,

Pub. Year

2021

Subjects

Efficiency. / Maximum principle. / Regression analysis. / Engineering demand parameters. / Expectation-maximization method. / Floor accelerations. / Intensity measure. / Inter-story drift ratios. / Ordinary least squares. / Penalized weighted least squares. / Performance assessment. / Least squares approximations.

Evaluation of the vertical distribution of base shear force in base-isolated structures

Author

Rofooei, F. R.

Publisher

Sharif University of Technology,

Pub. Year

2007

Subjects

Buildings. / Dynamic analysis. / Mathematical models. / Structural design. / Base-isolated structures. / Damping ratios. / Nonlinear dynamic analyses. / Shear force. / Uniform building code (UBC) / Building codes. / Seismic response. / Building. / Damping. / Induced seismicity. / Seismic design. / Seismic isolation. / Structural response. / Vertical distribution.

Comparison of static pushover analysis and IDA-based probabilistic methods for assessing the seismic performance factors of diagrid structures

Author

Seyedkazemi, A.

Publisher

Sharif University of Technology,

Pub. Year

2021

Subjects

Seismic waves. / Collapse capacities. / Incremental dynamic analysis. / Probabilistic methods. / Push-over analysis. / Response parameters. / Seismic Performance. / Static pushover analysis. / Structural systems. / Seismology. / Building. / Comparative study. / Displacement. / Performance assessment. / Probability. / Seismic response. / Structural response.

Seismic hazard assessment studies based on developed deterministic and probabilistic approaches for the central-east of Iran region

Author

Foyouzati, A.

Publisher

Emerald Publishing,

Pub. Year

2023

Subjects

Attenuation relationship. / Deterministic seismic hazard analysis. / Probabilistic seismic hazard analysis. / Seismic hazard. / Site-specific spectrum.

Assessment of the seismic behavior of self-centering eccentrically braced frames with vertical link-beam

Author

Rofooei, F. R.

Publisher

Elsevier Ltd,

Pub. Year

2023

Subjects

Nonlinear analysis. / Post-tensioned cables. / Residual deformation. / Self-centering systems. / Vertical link-beam.