Scholarlink

<p>Contemporary pavement analysis research seeks to enhance previous methodologies by applying an intricate 3D Finite Element Method (FEM) model within a multi-physics framework. The primary aim is to more precisely depict soil behaviour utilizing Pasternak foundations, which enhance the basic Winkler models. This methodology facilitates an exhaustive examination of the dynamic variables influencing jointed reinforced concrete pavement (JRCP) at airports subjected to multidirectional seismic stresses. The reliability of these FEM JRCP models is confirmed by comparison with previous research and a mesh convergence analysis. Upon Validation, the model evaluates the influence of the sub-base modulus, subgrade modulus, and concrete grade of the pavement slab on its dynamic performance. This analysis utilizes seismic data from the Uttarkashi earthquake (magnitude M 6.6) as the input for ground motion modelling. A statistical sensitivity analysis was used to establish generic design principles for airport JRCP pavements. The research indicated that increased concrete stiffness results in enhanced transverse displacement of the pavement during seismic stress. Moreover, superior-grade concrete can withstand elevated Von Mises stresses before fracturing. A more substantial sub-base was determined to reduce transverse displacement, thereby enhancing lateral support during seismic events. Ultimately, augmenting the subgrade stiffness was demonstrated to reduce deflections and to improve load distribution, hence diminishing the Von Mises stress in the concrete slab.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Seismic response of a JRCP aircraft pavement by the finite element method

  • 期刊论文

  • 发表日期：

    2025年9月29日

查看全文
  • Avishek Singh Parihar,
  • K. Nallasivam

摘要

Contemporary pavement analysis research seeks to enhance previous methodologies by applying an intricate 3D Finite Element Method (FEM) model within a multi-physics framework. The primary aim is to more precisely depict soil behaviour utilizing Pasternak foundations, which enhance the basic Winkler models. This methodology facilitates an exhaustive examination of the dynamic variables influencing jointed reinforced concrete pavement (JRCP) at airports subjected to multidirectional seismic stresses. The reliability of these FEM JRCP models is confirmed by comparison with previous research and a mesh convergence analysis. Upon Validation, the model evaluates the influence of the sub-base modulus, subgrade modulus, and concrete grade of the pavement slab on its dynamic performance. This analysis utilizes seismic data from the Uttarkashi earthquake (magnitude M 6.6) as the input for ground motion modelling. A statistical sensitivity analysis was used to establish generic design principles for airport JRCP pavements. The research indicated that increased concrete stiffness results in enhanced transverse displacement of the pavement during seismic stress. Moreover, superior-grade concrete can withstand elevated Von Mises stresses before fracturing. A more substantial sub-base was determined to reduce transverse displacement, thereby enhancing lateral support during seismic events. Ultimately, augmenting the subgrade stiffness was demonstrated to reduce deflections and to improve load distribution, hence diminishing the Von Mises stress in the concrete slab.