Modeling of shear yielding members for seismic energy dissipation

Date

2004-08-01

Author

Sarıtaş, Afşin

Metadata

Show full item record

Item Usage Stats

110
views

0
downloads

Structural members yielding in shear are used in earthquake resistant systems, such as eccentrically braced steel frames and systems with passive energy dissipation devices, in a conscious effort to concentrate the energy dissipation capacity of the structure in components that can be repaired or replaced after a major earthquake. The simulation of the energy dissipation capacity of these components is important in the evaluation of the seismic response of these structural systems. This paper presents a new beam element for the simulation of the hysteretic behavior of shear-yielding members. The element is based on a three-field variational formulation with independent force, displacement and deformation fields. The displacement field is based on Timoshenko's shear beam theory. The nonlinear response of the element arises from the integration of biaxial stress-strain relations over several control sections along the element length. The biaxial material model accounts for the interaction between normal and shear stress. While previous concentrated plasticity models involve parameter tuning for different loading and support conditions, the proposed model is general in its derivation of the axial force-shear-flexure interaction from the material response. The proposed model shows the characteristic advantages of force-based beam elements and is capable of simulating the inelastic response of short beams with a single element without suffering from shear locking. The effect of shear is significant in these members during the elastic and inelastic response. The ability of the model to accurately represent the hysteretic behavior of short shearyielding members is ascertained with correlation studies of analytical results with available experimental data from shear-link experiments.

URI

https://hdl.handle.net/11511/72293

Conference Name

13th World Conference on Earthquake Engineering (1 - 6 Ağustos 2004)

Collections

Department of Civil Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Development of a physical theory model for the simulation of hysteretic behavior of steel braces Çalık, Ertuğrul Emre; Dicleli, Murat; Department of Engineering Sciences (2007) Bracing members are considered to be effective earthquake-resistant elements as they improve the lateral strength and stiffness of the structural system and contribute to seismic energy dissipation by deforming inelastically during severe earthquake motions. However, the cyclic behavior of such bracing members is quite complex because it is influenced by both buckling and yielding. This thesis presents simple but an efficient analytical model that can be used to simulate the inelastic cyclic behavior of ste...
Modeling Beam-Column Joints in Fragility Assessment of Gravity Load Designed Reinforced Concrete Frames Çelik, Ozan Cem (Informa UK Limited, 2008-3-14) Reinforced concrete (RC) frame structures customarily have been designed in regions of low-to-moderate seismicity with little or no consideration of their seismic resistance. The move toward performance-based seismic engineering requires accurate reliability-based structural analysis models of gravity load designed (GLD) RC frames for predicting their behavior under seismic effects and for developing seismic fragilities that can be used as a basis for risk-informed decision-making. This analytical approach ...
DEVELOPMENT OF BORIDES/BORATES FOR ENERGY STORAGE DEVICES Bahtiyar, Doruk; Aydınol, Mehmet Kadri; Department of Metallurgical and Materials Engineering (2022-9) For many years, materials in the form of metal sulfides, oxides, phosphates, and titanates have been developed as cathode and anode active materials to be used in energy storage devices. Borides and borates, recently, attracted the attention of researchers in this field. In this study, for the development of a new class of materials for energy storage applications, synthesis and characterization of metal (Fe, Mo, Mn, and V) borides and (Mn, and Y)borates were carried out. The obtained materials were tested ...
Investigation of Au-Ag-Cu Alloy Electrodeposition to Electromechanical Systems Çağan, Berkay; Erdoğan, Metehan; Yılmaz, Cemil; Yurdakul, Burak; Karakaya, İshak (2020-07-01) Electromechanical systems, which provide electrical power and dataconnection between moving terminals require high conduction and erosionresistant surfaces. Transfers of electrical power and data are accomplishedby the contact of drum and brush wires. The simultaneous electrochemicaldeposition of desired Au-Ag-Cu alloy compositions, which can be used tocoat the brush wires, was investigated in this study. In the scope of the study,the static potential and cyclic voltammetry behaviors of gold, silver andcopp...
Susceptibility of mid-rise and high-rise steel moment resisting frame buildings to the nonlinear behavior of beam-column connections Bayraktar, Murat; Sarıtaş, Afşin; Department of Civil Engineering (2017) Moment resistinting steel frames provide significant energy dissipation capacity in the event of a major seismic excitation. In order to ensure this, one of the most critical regions to pay attention is the beam-column connections, where their behavior is greatly simplified and idealized for the purpose of design in practice. In this thesis, the variables inherent in steel connections are taken into account through a parametric study by considering both static push-over analysis and nonlinear time history a...

Citation Formats

A. Sarıtaş, “Modeling of shear yielding members for seismic energy dissipation,” presented at the 13th World Conference on Earthquake Engineering (1 - 6 Ağustos 2004), Vancouver, Canada, 2004, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/72293.