COMPARATIVE STUDY ON RESIDUAL CAPACITY OF BRIDGE PIER OF 1% SFRC PIER WITH CONVENTIONAL CONCRETE PIER UNDER IMPACT LOADING
Author(s):
Nikhil A. Gahukar, Prof. P. S. Lande
Keywords:
Peak Impact load, Residual Axial Capacity, Residual Shear Capacity, Vehicle Collision, Impact Mass, Impact Velocity, Equivalent Static Force, Nominal Shear Force.
Abstract
Vehicle strikes to bridge piers cause varied degrees of damage and a commensurate decline in structural strength. The amount of repairs needed to keep the bridge in use or whether to shut it down for pier replacement depends on the extent of the damage. In an effort to reduce the frequency of accidents, the bulk of the current studies in this field have adopted a risk management strategy. To establish if an object is suitable for further service, the majority of methods assign a damage level index. These methods, however, do not account for the pier's diminished capacity or its diminished ability to endure extra hazard loading situations like seismic. The study makes the assumption that each member will be operating at its design capacity when it encounters the hazardous loading because these sequential hazardous loading situations are not currently taken into account by the design regulations in use. In order to produce reduction factors that can be employed in the reliability analysis of a subsequent post-impact hazard analysis, this study aims to identify the loss in capacity that bridge piers experience as a function of vehicular impact. The Researchers of Wollo University used a normal conventional concrete pier with 1% extra SFRC Pier detail, which Kombolcha Institute of Technology University thoroughly explained in literature review. The damage index are evaluated using current techniques described in the literature, and the results are calculated with those of a typical concrete bridge pier. The reliability of the pier section is then assessed in relation to the mass, impact velocity, shape, and material qualities of the vehicle. The pier is also examined using numerical analysis methods to ascertain the post-impact residual axial and shear capacity. Finally, reduction factors that link to damage index that can be employed in future evaluation are found using the residual capacity.
Article Details
Unique Paper ID: 161439

Publication Volume & Issue: Volume 10, Issue 4

Page(s): 513 - 519
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