Effect of simultaneous spatial near-source ground excitation and soil on the pounding response of bridge girders

Nawawi Chouw, Hong Hao

    Research output: Contribution to journalArticle

    Abstract

    The study addresses the influence of the characteristic of the near-source Kobe earthquake, the spatially varying ground motions, and the soil-structure interaction on the pounding response of two adjacent bridge frames. For the simulation of the non-uniform ground excitation of the bridge piers the Japanese design spectrum for soft soil is used. The numerical result of the investigation of the simplified model reveals that -depending on the ratio of the natural frequencies of the two adjacent structures- soft soil can cause a strong amplification of the pounding forces on structures. When their natural frequencies are close to each other non-uniform ground motions may significantly increase the relative structural responses. The result of the finite-element and boundary-element model confirms the significant effect of the spatial ground excitation and the soil-structure interactio
    Original languageEnglish
    Pages (from-to)779-788
    JournalJournal of Applied Mechanics
    Volume6
    Publication statusPublished - 2003

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