International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 24 | Feb 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 2113 COMPARATIVE ANALYSIS OF NBC WITH IS CODE FOR RC STRUCTURES Er. Aashish Aryal 1 , Er. Sarams Dhungana 2 1 Undergraduate Student, Department of Civil Engineering, NMIT, Karnataka, India 2 Undergraduate Student, Department of Civil Engineering, NMIT, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------- Abstract – Basic structure builds in Nepal utilize seismic codes of Nepal and India reciprocally, despite the fact that the codes yield distinctive plan esteems. There exists across the board conviction that Indian seismic codes plan for more prominent seismic powers in the RC outlines and are thusly progressively moderate. In any case, there is little proof that backs such a wide proclamation. Any statement of that sort could be made simply in the wake of investigating, in each code, all the contributing parameters that oversee the last structure seismic burdens. Since the hypothesis for calculation of seismic powers in the two codes is sensibly uniform, it takes into account a sound near the investigation. The result of the investigation gives enough proof to out-rule such a general explanation, that Indian seismic codes are more moderate than Nepali seismic codes. Results are not excessively broad; both the codes could be moderate contingent on conditions-the conditions being the area of the site, soil type and the number of stories. Key Words: NBC 105:1994, IS 1893:2016, RC frame, base shear coefficient, seismic shear coefficient, response spectrum, seismic zoning factor, response reduction, importance factor 1. INTRODUCTION Before the introduction of NBC in 1994 AD, the structural design of RC buildings in Nepal used to be done by referring to Indian Standards. Such reference was relevant as well given the fact that Nepal borders India in three directions, thus, the design response spectrum and the diversity of soil type incorporated in Indian seismic design code IS 1893: 2002 would reasonably be applicable for Nepal. After 1994, the seismic design code of Nepal NBC 105:1994 started to come into practice. Since there was no restriction in the use of Indian Standards in the government level itself, even after the introduction of Nepali Standards, the Indian code was equally popular, if not more. Even as of now, the compliance of one code would sufficiently ratify earthquake resistant design; hence depending upon the designer’s expertise, both codes are widely used and accepted. As the building code compliance got implemented more stringently especially in the Kathmandu valley in the past decade, the awareness and understanding of building codes grew among engineers. With it, emerged a new line of belief that Indian seismic code is more conservative than NBC. Although not documented anywhere, the design engineers presumably expressed such thought as a generalization of their narrow scope of design practice. Most structural engineers in Nepal design residences 2 to 5 stories, schools 1 to 4 stories, commercial complexes 4 to 8 stories and apartments 8 to 14 stories and as the geotechnical investigation of the site is often discounted except for tall buildings, the soil type II: Medium soil is commonly adopted for design purpose. It is quite reasonable to assume that based on such a narrow scope of design practice, engineers could have made a doubtful generalization. To declare that IS 1893: 2002 gives conservative results or NBC 105: 1994 yields less exaggerated results, a very broad set of parameters needs to be analyzed. 1.1 OBJECTIVE OF THIS PAPER  To comprehend the seismic investigation strategy include in NBC 105:1994 and IS 1893:2016.  RC structures laying on hardened or medium soil, the seismic interest as processed utilizing IS 1893 is constantly higher than NBC 105  To contrast, the investigation working concurring with NBC and IS code.2. STUDY OF NBC 105:1994 and IS 1893-1:2016: 2. METHODOLOGY: All construction regulations have their own standards, so it isn't shrewd to blend the necessities of one code in with another. Indian seismic code was set up based on deterministic seismic danger investigation from verifiable information of past quakes though Nepali seismic code was set up based on probabilistic seismic risk examination of all issues inside 150 km limit of Nepal. Keeping the equivalent into thought, the relative investigation has been led by treating the two codes freely all through and counting the last structure aftereffects of the two. The two codes have their own structure reaction range. The nature and substance of the range are comparable in the two codes yet they vary in the standardization of the estimations of what has been named as Spectral Acceleration Coefficient (Sa/g) in IS1893: 2002 and Basic Seismic Coefficient (C) in NBC105: 1994 as given in Fig. 1 and 2. There are three ranges for three sorts of soil; Type I: Stiff soil, Type II: Medium soil and Type III: Soft soil. The meaning of these sorts coordinates in the two codes, so a specific site that would fall under Type I