International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 07 Issue: 08 | Aug 2020 www.irjet.net p-ISSN: 2395-0072 © 2020, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 3633 Comparative Study of Structural Analysis between Reinforced Cement Concrete Structure and Steel Framed Structure Ishwor Thapa 1 , Achyut Bhandari 2* , Bikash Subedi 3 1 Lecturer, Department of Civil and Geomatics Engineering, Pashchimanchal Campus, Institute of Engineering, Tribhuvan University, Nepal (M.Sc. in Construction Management) 2 Ghar Engineering Consultancy, Pokhara, Nepal (M.Sc. in Infrastructure Engineering and Management) 3 MS Student, Structural Engineering Program, Department of Civil Engineering, School of Engineering, Pokhara University, Nepal ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The development of infrastructure sector is taking place at an unprecedented rate and it demands suitable materials to have our structure safer, sustainable and economical. Both the reinforced cement concrete structures and steel framed structures are suitable choice of building construction because of their versatility and reliable properties. Our main endeavor is to deal with the comparative study of structural analysis between steel framed structure and reinforced cement concrete structure. Mass material & storey stiffness, base shear, storey drift ratio, centre of mass, centre of rigidity and displacement is determined and compared to delve into a conceptual clarity regarding material choice. Three-dimensional model of RCC and steel structure are analyzed with the help of software ETABS 2016v16.2.1. Key Words: Comparative study, base shear, storey drift ratio, storey stiffness, Seismic coefficient, story response 1. INTRODUCTION Haphazard and non-engineered construction has raised serious concerns towards the sustainability of various structure constructed in Nepal. While world has laddered in advancement of technology Nepal seemed busy struggling to build its basic infrastructure. The diverse material choice in constructing structure forms or system is the phenomenal part of engineering. Both the reinforced cement concrete structures and steel framed structures are suitable choice for the construction of building because of their versatility and reliable properties. Traditional RCC framed structure is generally used for constructing buildings in Nepal resulting higher dead load, restriction to maximum span and hazardous formwork [1]. Although, RCC and steel structures follows a similar load transfer method, they differ with one another in several factors. RCC is the composite material having concrete with steels bar embedded in it. They ensure better compression and tension withstanding capacity and are used in large number for structural construction to satisfy the basic requirements like stability, strength and serviceability [2]. Steel structure is an assemblage of elements rolled to a basic cross-section making desired size and form in the site [3]. On the other hand, due to the large strength to weight ratio, steel structures tend to be more economical than concrete structures for tall buildings and large span buildings and bridges and an ecofriendly material, which can easily be dismantled and sold as scarp [4]. Several study regarding the comparative analysis of the material used in the structure is done through continuous research. The literature [5]-[7] reports several techniques of comparisons among these materials. 2. DESCRIPTION OF STRUCTURAL MODEL The current study has models of RCC and steel structure. Following basic parameters are used for the design and analysis of structures. Table -1: Description of Structural Model 1. Physical Properties: Total number 2 Total height 12m Floor to floor height 3m Overall length 12.195 m (40ft) Overall breadth 12.195 m (40ft) Plinth area 148.2 m 2 (1600 sq. ft) Staircase Open well staircase Earthquake zone V 2. Structural Properties: For RCC Structure Total Number of Column 16 per storey Section of Column 300 mm X 300 mm Section of Beam 230 mm X 350 mm Depth of Slab 125 mm (5 inches) For Steel Structure Total Number of Column 16 per storey Section of Column IS MC350(toe-toe) Section of Beam IS MB225 Section of Secondary Beam IS LB75 Depth of Slab 125 mm (5 inches) Values Adopted as per IS 875:1987 Part II Live Load on Staircase 3 KN/m 2 Live Load on Floor: 3 KN/m 2 Live Load on Roof 1.5 KN/m 2 Values Adopted as per IS 1893:2002