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Bridge bearings perform the dual function of transferring reaction forces from the super-structure to the sub-structure and facilitating the venting of possible extra stresses that may generate due to... restrained deformations. In the present study, the seismic performance of the girder bridges has been investigated as per the provision IRC:6-2017, IS:456-2000, IS 1893 Part (III) 2016, and IRC: SP:114-2019. Two types of bearings have been considered in the study, viz. Elastomeric bearing (EB) and POT PTFE bearings. The design and efficiency of bridges are greatly influenced by the type of bearing adopted and the serviceability of bearings. In past studies, the efficacies of the bearings have not been investigated under the different seismic zone of India. The study presented here focused on parameters that may affect the selection of a particular bearing class and attempted to find the optimum range within which a particular bearing could perform better. Parametric studies have been done by varying span length and pier height under India's different seismic zone. The comparison of seismic performances of POT PTFE and Elastomeric bearings was carried out vis-à-vis the variation in span length, seismic zones and pier height. The provisions of IRC:6-2017, IS:456-2000, and IRC: SP:114-2019 were incorporated to analyze seismic variation for medium-span bridges. It was observed that, the POT PTFE bearings are found better as compared to elastomeric bearing by considering span variation, pier height and seismic zone.続きを見る
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Mendeley出力
