@inproceedings{adc60b594e5440e9aeaedc40c6b216b1,
title = "A novel method for assessing the critical excitation direction of curved bridges",
abstract = "This study proposes a resultant force-based (RFB) method to directly assess the critical excitation direction of curved bridges. A numerical model for a typical curved bridge is built and multiple factors associated with structural and ground motion characteristics, including horizontal girder curvature, column height and frequency characteristics of ground motions are evaluated to identify the sensitivity of the critical excitation direction to these factors. Results indicate that the RFB method can capture the critical excitation direction of curved bridges with sufficient precision (no more than 2.5% for this study) and minor computational efforts (only requiring 0° and 90° as the incidence angles) compared with the response history analyses at multiple ground motion orientations, which can be easily applied in computing software to guide the seismic design of bridges. Among the factors studied, horizontal girder curvature tends to be the most influential factor affecting the critical excitation direction of curved bridges.",
keywords = "Assessment method, Critical directions, Horizontally curved bridges, Influential factors, Response spectrum method, Resultant responses",
author = "Ruiwei Feng and Tianpeng Lao and Wancheng Yuan and Tongfa Deng",
note = "Publisher Copyright: {\textcopyright} 2018 International Conference on Wireless Communications, Signal Processing and Networking, WiSPNET. All rights reserved.; 40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures ; Conference date: 19-09-2018 Through 21-09-2018",
year = "2018",
language = "English",
series = "IABSE Symposium, Nantes 2018: Tomorrow's Megastructures",
publisher = "International Association for Bridge and Structural Engineering (IABSE)",
pages = "S5--173--S5--182",
booktitle = "IABSE Symposium, Nantes 2018",
}