Published Online:July 2024
Product Name:The IUP Journal of Structural Engineering
Product Type:Article
Product Code:IJSE020724
Author Name:Ankit Nautiyal and Sarita Singla
Availability:YES
Subject/Domain:Engineering
Download Format:PDF
Pages:22
The paper examines the seismic response of bridge piers, highlighting the essential role of soil-structure interaction (SSI) in enhancing structural resilience. Utilizing MIDAS and LPile software, the study evaluates SSI’s impact on bridge pier performance during seismic events. The study involves modeling and analysis under varying soil conditions using MIDAS software. LPile software calculates soil spring stiffness, enabling realistic SSI simulations in MIDAS models. The key objectives include comparison of bridge on deep foundation by analyzing soil properties’ effects on SSI, comparing fixed base and SSI models, and providing practical design insights. The findings show significant differences in seismic performance with SSI. The fundamental period increased by 28%, indicating a more flexible response. Maximum displacements in the bridge deck rose by 25% in both X and Y directions, compared to a fixed base model. Additionally, shear forces and bending moments decreased, underscoring SSI’s benefits in reducing seismic demands. This study offers valuable insights into bridge structures’ dynamic behavior under seismic loading, emphasizing the importance of SSI in seismic design practices. The results are crucial for developing resilient bridge designs capable of withstanding complex SSI during earthquakes.
In civil engineering and earthquake resilience, evaluation of bridge piers on deep foundations with soil-structure interaction (SSI) is crucial. Over the past four decades, advancements in understanding earthquake mechanisms and structural damage have enhanced seismic performance (Jeremic et al., 2002). However, preventing earthquake- induced damage remains challenging, requiring ongoing research (FEMA, 2019).