Forthcoming articles

 


International Journal of Earthquake and Impact Engineering

 

These articles have been peer-reviewed and accepted for publication in IJEIE, but are pending final changes, are not yet published and may not appear here in their final order of publication until they are assigned to issues. Therefore, the content conforms to our standards but the presentation (e.g. typesetting and proof-reading) is not necessarily up to the Inderscience standard. Additionally, titles, authors, abstracts and keywords may change before publication. Articles will not be published until the final proofs are validated by their authors.

 

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International Journal of Earthquake and Impact Engineering (2 papers in press)

 

Regular Issues

 

  • Comparative Study on Damping Models of Linear System Subjected to Arbitrary Dynamic Loading   Order a copy of this article
    by Tushar H. Bhoraniya, Sharadkumar P. Purohit 
    Abstract: Linear and non-linear damping models, correlated through equivalent damping coefficient, have been developed for discrete vibrating system employing energy equivalence principle at steady state response of the system. Application of, so developed, damping models to derive response of discrete vibrating system subjected to arbitrary dynamic loading is not obvious due to transient nature of the system. Thus, equivalent damping coefficient of damping models needs to be redefined to derive realistic transient response of the system. In the present study, First Cycle Damping Coefficient (FCDC) approach is proposed that uses the first cycle transient response of the system to derive equivalent damping coefficient for linear and non-linear damping models through Genetic Algorithm propelled energy equivalence with that of linear viscous damping model. A Single Degree of Freedom (SDOF) system with linear and non-linear damping models subjected to arbitrary dynamic loading are solved. Efficacy of proposed FCDC approach is established through experimental study on lightly damped single storey building model. Velocity squared damping model yields higher peak displacement response for the system vis-
    Keywords: SDOF System; Damping Models; Equivalent Viscous Damping Coefficient; Energy per cycle; Arbitrary Dynamic Loading.

  • Seismic design and assessment of steel frames with visco-plastic dampers   Order a copy of this article
    by Jaehoon Bae, Theodore L. Karavasilis 
    Abstract: This paper evaluates the seismic performance of steel frames with visco-plastic dampers. The visco-plastic damper is realized by the in-series combination of a viscoelastic damper and a friction device. Its main goal is the reduction of storey drifts without significantly increasing the base shear force. A prototype steel building is designed as a high ductility steel moment-resisting frame (MRF). The MRF is then equipped with viscoelastic or visco-plastic dampers to achieve high seismic performance. Parametric designs of visco-plastic dampers with different activation forces for their friction devices are carried out. Non-linear dynamic analyses for a set of 20 earthquake ground motions scaled to the design and maximum considered earthquake intensities are carried out in OpenSees. Moreover, incremental dynamic analyses up to collapse are conducted. The response results highlight the effectiveness of the visco-plastic damper to control drifts, residual drifts, and the base shear force, while also providing an adequate seismic collapse resistance.
    Keywords: Visco-plastic damper; Steel MRF; Seismic design; Resilience; Eurocode 8.