Seismic analysis of a three- span deck girder bridge
Current time: 04-15-2021, 12:29 PM
Users browsing this thread: 1 Guest(s)
Replies 0
Views 1490

Seismic analysis of a three- span deck girder bridge
Seismic analysis of a three- span deck girder bridge

Author: Zasiah Tafheem & Nazmus Sakib | Size: 625 KB | Format: PDF | Quality: Unspecified | Publisher: IABSE-JSCE Joint Conference on Advances in Bridge Engineering-II, August 8-10, 2010, Dhaka, Bangladesh. Amin, Okui, Bhuiyan (eds.) | Year: 2010 | pages: 08

[Image: 69412064012668751683.jpg]

[Image: info.png]

This paper presents seismic analysis of a three-span deck girder bridge. A finite element model to analyze the deck girder bridge has been developed by using finite element software called ANSYS. The entire work has been carried out in two steps. In the first step, a three dimensional model of the bridge has been subjected to equivalent static earthquake loading by following AASHTO guideline. In the second step, Response
Spectrum analysis has been performed. Then the design forces and moments at the column bases of the bridge are obtained by using the above two methods. Finally a comparative study of the design values has been performed between those two methods mentioned above. From the entire study it has been found that the magnitude of the axial forces are almost same in those two methods but the design moments and shear forces
vary significantly. In case of design moment, the result found from response spectrum method (RSM) is about
1.74 times of the design value obtained by equivalent static force method (ESFM). Therefore it can be said that there is a possibility of achieving under design of the bridge if follows the ESFM. Based on overall findings, it can be suggested that the response spectrum method should be performed for seismic load analysis of the bridge to achieve a safer design.

[Image: download.png]
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

[-] The following 10 users say Thank You to TAFATNEB for this post:
  • PinkPant, vardan, malc, blaze, rezart, zrilek, bridgeengineer, ashcivilea, subin91, slowet

Possibly Related Threads…
Thread Author Replies Views Last Post
Seismic behavior of box girder cable-stayed bridges considering large deformations arshiakh 1 2,052 03-01-2015, 09:09 PM
Last Post: bridgeengineer
[ASCE] Buckling Analysis of a Long‐Span Roof Structure Collapsed during Construction mybest 1 2,785 04-08-2014, 12:35 PM
Last Post: Mohammad6299
Pushover Analysis of Long Span Bridge Bents TAFATNEB 0 1,620 12-12-2013, 09:35 PM
Pushover analysis for the seismic response prediction of cable-stayed bridge TAFATNEB 0 1,653 11-20-2013, 11:33 PM
Fatigue life estimation of steel girder of Yangpu cable-stayed Bridge due to buffetin asim99 0 1,674 03-31-2013, 05:33 PM
Last Post: asim99

Users browsing this thread: 1 Guest(s)