Design of tall railway bridges in North-East India
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Bibliographic Details
| Author(s): |
Sumantra Sengupta
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24-27 September 2013 | ||||
| Published in: | IABSE Symposium Kolkata 2013 | ||||
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| Page(s): | 1-9 | ||||
| Total no. of pages: | 9 | ||||
| Year: | 2013 | ||||
| DOI: | 10.2749/222137813815776160 | ||||
| Abstract: |
The paper deliberates on the design of tall bridges of pier height varying from 50m to 140m in hilly river gorges in North-East of India which falls under highest seismic zone area of India. Due to the varying height and considerably high piers in seismic prone area, multi modal analysis is performed using peak ground acceleration (PGA) and acceleration response spectrum obtained from site specific seismic vulnerability study with the available data. Due to the pier locations on the steep slope of the hill, rigorous slope stability analysis has been performed. Wind analysis has been performed followed by wind tunnel analysis. Fatigue analysis has been performed for the steel superstructure as per the latest research findings. |
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| Keywords: |
slope stability fatigue analysis Tall bridges site specific seismic study multi modal analysis wind tunnel analysis erection scheme
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