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Seismic Analysis of Soil-Foundation Interaction under a Bridge Pier Due to Chauk Earthquake Excitation of 0.12g to 0.5g

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Seismic Analysis of Soil-Foundation Interaction under a Bridge Pier Due to Chauk Earthquake Excitation of 0.12g to 0.5g


Zin May Hnin | Nyan Myint Kyaw | Kyaw Kyaw

https://doi.org/10.31142/ijtsrd21339



Zin May Hnin | Nyan Myint Kyaw | Kyaw Kyaw "Seismic Analysis of Soil-Foundation Interaction under a Bridge Pier Due to Chauk Earthquake Excitation of 0.12g to 0.5g" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-2, February 2019, pp.385-391, URL: https://www.ijtsrd.com/papers/ijtsrd21339.pdf

In this study, seismic analysis of soil-foundation interaction under a bridge pier are studied with different earthquake excitations. In 2016, August 25, a magnitude of 6.8 happened near Bagan region. Pakokku Bridge, the longest of the bridges over the Irrawaddy, is situated on 37.8 miles from the epicentre of 2016 Chauk earthquake. That is why the safety performance of long-span Bridge (Pakokku Bridge) especially for the safety of the foundation system subjected to soil-foundation interaction is necessary to investigate for unexpected future seismic excitation. Firstly super structural loadings on the pile cap are estimated by using STAAD PRO V8i. And then, p-y curves are determined by Reese (1974) method for the static and National Cooperative Highway Research Program (NCHRP) for dynamic conditions. Based on the development of p-y curves, theoretical ultimate soil resistance pcr and pcd due to wedge and flow failure are determined to produce critical depth xcr. After that, finite element software ABAQUS is used for the analysis of soil-foundation interaction under a bridge pier in static condition. And then, the behaviour of soil foundation interaction under a bridge pier is carried out due to Chauk earthquake. In this study, the behaviour of soil-foundation interaction such as deflections and settlements are produced. According to the analysis results in static condition, it is found that the vertical and horizontal displacements at the pile tip are 2.28mm and 0.14mm respectively. In dynamic condition, the vertical and horizontal displacements at the pile tip are 3mm and 2.94mm are found at 0.12g. After that, maximum ground acceleration of 0.5g is 14.5mm and 2.94mm in horizontal and vertical displacement of pile tip. Maximum shear stress and strain are found out the base of the pile cap. Finally it is found that the soil-foundation interaction under a bridge pier during earthquake motions presented in this study is reliable and reasonable with the limitation of AASHTO Standard Specifications for Highway Bridges.

Pakokku Bridge, Soil-foundation interaction, Abaqus, p-y curves, 2016 Chauk earthquake


IJTSRD21339
Volume-3 | Issue-2, February 2019
385-391
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.

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