Comparative Study of Seismic Analysis and Design of Different Types of Bridge Abutments

EasyChair Preprint 8758

Abstract

Identifying the appropriate type of abutment considering the site conditions for a bridge is an important aspect of the economics of the entire bridge project. This study includes the seismic analysis and design of different types of non-submersible types of bridge abutments viz. box type, counter fort type abutment, C- attached, C-type detached, and gravity type abutments. The abutments considered are related to the live project of the major high-level bridge on Vennariver (between Sawali to Mhate) at Jawali, Satara, India. The comparative study of different types of bridge abutments under the dynamic earth pressure and superstructure loading and the live load surcharge is carried out using IRC specifications. The dimensions of the deck slab, girders, and abutments are provided as per PWD standard manual for two-lane traffic. The selected bridge abutments are modeled in STAAD PRO software to check the structural behavior for a total of eight HFL and OFL load combinations. Cost analysis is done based on the design of abutments. The box type abutment has come out with relatively good structural behavior along with economical cost benefits. Comparison of all abutments based on the bending moment, shear force, and deflection, the box type abutment has performed well than other type abutments. The gravity type abutment attracted less bending moment than box type abutment but it failed in the stability check for the seismic condition.

Keyphrases: Abutment modeling, Seismic performance, box type abutment

@booklet{EasyChair:8758,
  author    = {Santosh Kumbar and Jyoti Bhusari and Anil Panjwani and Manjunath Bhogone},
  title     = {Comparative Study of Seismic Analysis and Design of Different Types of Bridge Abutments},
  howpublished = {EasyChair Preprint 8758},
  year      = {EasyChair, 2022}}