Forthcoming and Online First Articles

International Journal of Structural Engineering

International Journal of Structural Engineering (IJStructE)

Forthcoming articles have been peer-reviewed and accepted for publication 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 Articles will not be published until the final proofs are validated by their authors.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 Structural Engineering (3 papers in press)

Regular Issues

  • Exploring the dynamics of vibration and impact loads: a comprehensive review   Order a copy of this article
    by Shrikant M. Harle 
    Abstract: This paper presents a comprehensive review of the dynamics of vibration and impact loads, including their definitions, causes, effects, and analytical and experimental methods for their study. The paper highlights the importance of studying these dynamics, as they can lead to catastrophic failure of structures and machines. The various types of vibrations, such as free and forced vibrations, and their causes, such as unbalance and misalignment, are discussed in detail. The effects of vibration and impact loads, such as fatigue failure and structural damage, are also reviewed. The paper provides a detailed analysis of the analytical and experimental methods used to study these dynamics, including finite element analysis, modal analysis, experimental modal analysis, response spectrum analysis, and design of experiments analysis. Case studies and applications of vibration and impact load analysis in various fields, such as automotive and aerospace engineering, are also presented. The paper concludes with a summary of the main findings and a discussion of future research directions in this field.
    Keywords: vibration; impact loads; dynamics; analytical methods and experimental methods.
    DOI: 10.1504/IJSTRUCTE.2023.10059478
     
  • A multilevel iterative algorithm for robust nonlinear dynamic analysis of force-based beam structure   Order a copy of this article
    by Ausama Mohamed Ali, Jame Alexander, Tathagata Ray 
    Abstract: Modelling material nonlinearity is imperative in structural analysis, especially for earthquake, blast, impact, and environment-driven chemical deteriorations. Stiffness-based beams are primarily used in commercial software for simulating such nonlinearity. This paper presents several improvements of the flexibility-based method to make it better than the stiffness-based method. The specific developments proposed here are: 1) the iterative convergence for updating the state of the element sections, and solution of the multi-axial smooth hysteretic equation; 2) the derivation of consistent tangent stiffness of the smooth hysteretic model; 3) the semi-implicit iteration for determining the incremental corotational stress resultants. The proposed solution is verified satisfactorily with existing stiffness-based solutions for global and local nonlinear dynamic responses. The proposed solution performs better than the existing stiffness-based solutions regarding coarser element discretisation and larger time-step. The chief reasons for this superior performance are: 1) the multilevel iterative algorithm; 2) the consistent tangent operator.
    Keywords: nonlinear dynamic analysis; flexibility-based beam; stiffness-based beam; implicit solution algorithm.
    DOI: 10.1504/IJSTRUCTE.2023.10060186
     
  • Seismic assessment of base-isolated reinforced concrete moment-resisting frames   Order a copy of this article
    by Said Hicham Boukhalkhal, Mohamed Badaoui, Abdallah Yacine Rahmani 
    Abstract: Until now, the Algerian seismic code has provided no guidance on how to design base-isolated structures. This work was done in order to propose including this technology in future versions of the seismic code. The present paper assesses the seismic performance of two types of buildings, conventional (fixed-base) and base-isolated, designed according to the Algerian seismic code RPA99/2003 using the capacity spectrum method (CSM). Herein, the influence of seismic isolators on the seismic behaviour of buildings is estimated. The nonlinear constitutive laws of the structural components and seismic isolators were derived and incorporated into the analysis. The comparative study carried out on the structure with and without the base-isolation, system highlighted the effect of seismic isolators on the reduction of seismic demands such as the base shear forces and the story drifts. The results also show that the use of seismic isolators is disadvantageous for tall buildings.
    Keywords: pushover analysis; lead rubber bearings; LRB; seismic base isolation; capacity spectrum method; seismic performance.
    DOI: 10.1504/IJSTRUCTE.2023.10060659
     

 

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