Experimental Evaluation of Compression Properties of Reclaimed Rubber Base Isolator

Reshma S; Sajeeb R.; Ancy Mathew

Experimental Evaluation of Compression Properties of Reclaimed Rubber Base Isolator

Authors

Reshma S

Dept. of Civil Engineering, TKM College of Engineering, Kollam, Kerala

Sajeeb R.

Department of Civil Engineering, TKM College of Engineering, Kollam, APJ Abdul Kalam Technological University, Kerala, India

Ancy Mathew

Department of Civil Engineering, TKM College of Engineering, APJ Abdul Kalam Technological University, India

DOI: https://doi.org/10.21467/proceedings.156.27

Synopsis

Traditional rubber seismic isolators are rarely employed for residential buildings as they are big in size, heavy and expensive. Fiber reinforced elastomeric isolators (FREIs) have been identified to provide cost effective base isolation. In this paper, base isolators are developed using reclaimed rubber reinforced with carbon fiber reinforcement polymer (CFRP). Vertical stiffness of the isolator is determined experimentally. Isolators with 4, 6, 8, 10 11 and 12 layers of reclaimed rubber pads with and without CFRP reinforcement are considered in the study. Effect of aspect ratio on vertical stiffness is also investigated.