Journal ArticleDOI
Enhanced Rayleigh Damping Model for Dynamic Analysis of Inelastic Structures
Mohammad Salehi,Petros Sideris +1 more
TLDR
In this article, an enhanced Rayleigh damping model for dynamic analysis of inelastic structures is presented, which has been extensively used to represent inherent inherent properties of the structure.Abstract:
This paper presents an Enhanced Rayleigh damping model for dynamic analysis of inelastic structures. The conventional Rayleigh damping model has been extensively used to represent inherent ...read more
Citations
More filters
Journal ArticleDOI
Assessing damage and collapse capacity of reinforced concrete structures using the gradient inelastic beam element formulation
TL;DR: Comparisons with experimental data demonstrate the capability of the GI FB element to more accurately and realistically capture the curvature distributions over the length of RC members, while comparisons of the IDA results show that models employing the GI element formulation predict lower collapse capacities by about 15% and greater damage.
Journal ArticleDOI
The Study of Tubing Vibration Mechanism in High Pressure Gas Well
TL;DR: In this paper, a dynamic finite element theory was used to model the characteristics of large-size tubing strings in deep gas wells, and a finite element mechanics model and mathematical model of the tubing string vibration of the packer of high-pressure gas wells were established.
Journal ArticleDOI
Effect of Major Design Parameters on the Seismic Performance of Bridges with Hybrid Sliding–Rocking Columns
TL;DR: In this article, the authors explored the effects of major design variables on the seismic performance of the so-called hybrid sliding-rocking (HSR) bridge columns, where the HSR bridge columns are precast concre...
Journal ArticleDOI
Dynamic response and chaotic behavior of a controllable flexible robot
TL;DR: In this article , a controllable flexible robot with a complex series-parallel mechanism was used as a research object and a combination of Lagrangian and finite element methods was used to establish its nonlinear elastic dynamics.
Journal ArticleDOI
Type 4 bell-shaped proportional damping model and energy dissipation for structures with inelastic and softening response
TL;DR: In this paper , the authors proposed a new bell-shaped proportional damping model, which allows energy dissipation to be directly related to modal damping ratio, and also addresses the concerns of using proportional dampings models with the tangent stiffness approach.
References
More filters
Journal ArticleDOI
Incremental dynamic analysis
TL;DR: Incremental dynamic analysis (IDA) is a parametric analysis method that has recently emerged in several different forms to estimate more thoroughly structural performance under seismic loads as mentioned in this paper, which involves subjecting a structural model to one or more ground motion record(s), each scaled to multiple levels of intensity, thus producing one (or more) curve(s) of response parameterized versus intensity level.
Journal ArticleDOI
Classical Normal Modes in Damped Linear Dynamic Systems
TL;DR: In this article, the necessary and sufficient conditions under which both discrete and continuous damped linear dynamic systems possess classical normal modes were determined for both continuous and discrete linear systems, respectively.
Journal ArticleDOI
Seismic Collapse Safety of Reinforced Concrete Buildings. I: Assessment of Ductile Moment Frames
TL;DR: In this paper, the authors apply nonlinear dynamic analyses to assess the risk of collapse of RC SMF buildings to quantify the seismic safety implied by modern building codes, and find that on average, these buildings have an 11% probability of collapse under ground motion intensities with a 2% probability for exceedance in 50 years.
Journal ArticleDOI
Problems encountered from the use (or misuse) of Rayleigh damping
TL;DR: In this paper, the damping forces generated by such a matrix can become unrealistically large compared to the restoring forces, resulting in an analysis being unconservative, and a remedy to these problems is proposed in which bounds are imposed on the dampings forces.
Journal ArticleDOI
Unintended Consequences of Modeling Damping in Structures
TL;DR: In this paper, the effect of Rayleigh proportional damping in the analysis of inelastic structural systems is investigated, and it is shown that when the stiffness portion of the system damping matrix is based on the original system stiffness, artificial damping is generated when the structure yields.
Related Papers (5)
Modeling viscous damping in nonlinear response history analysis of buildings for earthquake excitation
Anil K. Chopra,Frank McKenna +1 more