Performance of geocell retaining walls under seismic shaking conditions is studied in this paper. Shaking table tests on geocell retaining walls subjected to ground shaking conditions of different accelerations and frequencies are discussed. Retaining wall models of 600 mm height were constructed using a sand backfill with layers of geocells stacked one above the other to form the facing. Geocells in these tests were constructed using planar geonets by stitching them into a honeycomb network. Material used for making geocells, number of geocells in each layer, slope of the facing and infill material of geocells were varied in different tests. These geocell retaining walls were subjected to 100 cycles of sinusoidal base shaking at accelerations ranging between 0.2 and 0.3 g and frequency range of 1-7 Hz. Response of retaining walls was monitored in terms of acceleration amplifications and wall deformations at different elevations. It was observed that all geocell retaining walls were extremely strong to seismic shaking. Acceleration amplifications and displacements increased with increase in base acceleration or shaking frequency. It was observed that the detrimental effect of increasing ground motion parameters on the wall response was more significant than the beneficial effect of improvement in geocell parameters.

While during building construction, the frame structures are constructing first due to ease of construction and later the frames are infilled by masonry brick infill or concrete blocks or finished stones or concrete hallow blocks. The infill walls are giving protection from outside environment like external walls and also divide the inside structure like as partition walls. Predicting the behaviour of infill while during seismic action is difficult because it is brittle and ductility in nature. The IS code provisions do not provide any guidelines for the analysis and design of RC frames with infill wall, so during the analysis infilled frame is considered as bare frame and neglecting effect of infill on frame. In this study, we carried a effect of infills on bare frame, masonry infill and soft storey models. The vertical discontinuity of stiffness in the structure called as soft storey. The soft storey are considering in different floors for different models like at ground floor, first floor, second floor, third floor and last floor. All the models are analysed by response spectrum analysis and infills are modelled by equivalent diagonal strut. Following parameters are determining like time period, displacement, storey shear, column forces and axial forces in columns.

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