A numerical method to predict the riding comfort induced by foundation construction close to a high-speed-line bridge

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Yanmei Cao (Author) Other; He Xia (Author) Other; Wenliang LU (Author) Other; Kunpeng Wang (Author) Other; Rui Calçada (Author) FEUP

Journal

Title: Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

Vol. 229 No. 3

Pages: 553-564

ISSN: 0954-4097

Publisher: SAGE

Indexing

ISI Web of Knowledge - 9 Citations

ISI Web of Science

Scopus - 11 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

CORDIS: Technological sciences > Engineering > Civil engineering

Other information

Authenticus ID: P-00G-BXM

DOI: 10.1177/0954409713519087

Abstract (EN): This paper proposes a practical method to predict the impact of foundation construction for a new high-speed rail line on running safety and riding comfort of an existing high-speed line. The presented numerical model consists of a bridge girder/pier finite element model, a pier-bearing platform-pile foundation-soil numerical model and a train/bridge interaction model that takes into account the dynamic interactions in the train/bridge/pier/soil system. The proposed method is used in an engineering case study. The results show that the foundation construction has an obvious influence on a nearby existing high-speed-line bridge. The differential settlement of piers leads to an increase in the bridge deflection, and generally the higher the train speed, the larger the deflection. The lateral displacement of the pier has a greater influence on the ride comfort than the vertical differential settlement, and an allowance of 20mm is suggested for lateral displacement of the pier in a ballasted high-speed line.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12