PSI - Issue 70

Anchal kaw et al. / Procedia Structural Integrity 70 (2025) 161–168

168

hospital and commercial building and emphasize the need for updated provisions in Indian standard as the Indian seismic codes underestimate the values of lateral forces. Due to such underestimation of lateral forces acting on NSEs, they often fail during earthquakes as they have not been designed properly for seismic loads. This results in damage to utility systems, falling components such as collapse of false ceilings, damage to infill partition walls and disruption of the building functionality. Table 4. Various parameters of Eurocode 8 and IS 16700 IS 16700 EUROCODE 8 Type of soil Type 1 rock or hard soil Type A (Rock) Seismic zone Zone V (Z = 0.36) PGA = 0.4 g Importance factor Ip = 2 Ƴa = 1 Behavior or Response modification Rp = 2.5 factor qa = 2 Amplification factor ap = 1 Aa = 3 Soil factor - S = 1 5. Conclusions and Future scope Thus, Eurocode 8 adopts a more conservative approach resulting in better seismic safety of NSEs.This comparison basically indicates that IS 16700 doesn’t provide conservative estimates for calculation of lateral forces on NSEs especially for critical and lifeline structures. This suggests that there is need to revise the Indian standard codes to incorporate more detailed NSEs design consideration to improve their seismic safety. As per the current Indian standard the seismic force or the floor acceleration acting on NSEs is a linear function of ratio of height of utility system and overall height of the building. However, they do not take into consideration the effect of natural frequency of building and the frequency of NSEs which will have a significant impact for different height and lateral dimensions of building. Future work includes experimental validation through shake table testing and real time monitoring to support the theoretical findings and this can contribute to the improvements in current seismic design codes. References Berto, L., Bovo, M., Rocca, I., Saetta, A., Savoia, M., 2020. Seismic safety of valuable non-structural elements in RC buildings: Floor Response Spectrum approaches. Eng Struct 205. Braga, F., Manfredi, V., Masi, A., Salvatori, A., Vona, M., 2011. Performance of non- structural elements in RC buildings during the L’Aquila, 2009 earthquake. Bulletin of Earthquake Engineering 9, 307–324. Carofilis Gallo, W., Chalarca Echeverri, B., 2021. comparative study of the seismic demand estimation on acceleration-sensitive nonstructural elements. Faculty of Civil Engineering, University of Zagreb, pp. 1313–1322. Challagulla, S.P., Parimi, C., Mohan, S.C., Noroozinejad Farsangi, E., 2020. Seismic response of building structures with sliding non-structural elements. International Journal of Engineering, Transactions B: Applications 33, 205–212. Devin, A., Fanning, P.J., 2019. Non-structural elements and the dynamic response of buildings: A review. Eng Struct 187, 242–250. Dhakal, R.P., Pourali, A., Tasligedik, A.S., Yeow, T., Baird, A., MacRae, G., Pampanin, S., Palermo, A., 2016. Seismic performance of non-structural components and contents in buildings: an overview of NZ research. Earthquake Engineering and Engineering Vibration 15, 1–17. EN 1998-1: Eurocode 8: Design of structures for earthquake resistance – Part 1: General rules, seismic actions and rules for buildings, 2004. Eurocode 2-Design of concrete structures-Part 4: Design of fastenings for use in concrete, 2018. Index Previous Next, 2016. National disaster management guidelines. Mondal, G., Jain, S.K., 2005. Design of non-structural elements for buildings: A review of codal provisions. O’reilly, G.J., Calvi, G.M., 2020. seismic risk classification of non-structural elements. Pesaralanka, V., Challagulla, S.P., Vicencio, F., Chandra Babu, P.S., Hossain, I., Jameel, M., Ramakrishna, U., 2023. Influence of a Soft Story on the Seismic Response of Non-Structural Components. Sustainability (Switzerland) 15. Pinkawa, M., Hoffmeister, B., Feldmann, M., 2014. A critical review of current approaches on the determination of seismic force demands on nonstructural components. Reducing the Risks of Nonstructural Earthquake Damage-A Practical Guide FEMA E-74, 2012. Rota, M., Zito, M., Dubini, P., Nascimbene, R., 2023. On the Use of Accelerometric Data to Monitor the Seismic Performance of Non-Structural Elements in Existing Buildings: A Case Study. Buildings 13. Lam, N., Gad, E., An innovative approach to the seismic assessment of non-structural components in buildings. Bianchi, S., Ciurlanti, J., Perrone, D., Pampanin, S., Filiatrault, A. Seismic demand and performance evaluation of non-structural elements in a low damage building system. Standard, IS 1893., 2016. Criteria for Earthquake Resistant Design of Structures Part 1 General Provisions and Buildings (Sixth Revision)