Comparison of High Grade Concrete in Earthquake Prone Areas

ABSTRACT On the edge of 21st century 75% of world populations are still living in structures, which are not earthquake resistant. There by causing the most losses of life, property and wastage of money as they are not using proper mix design and proper grade of concrete for construction. The main aim of the paper is not merely the analysis and design of structure but to understand the meaning of mix design and promoting the high grade concrete to reduce the cost of construction and to get the better strength, life and it may also reduce the losses of lives, property and money. In this paper seismic analysis of multistoried building (G+3) is done for Zone-III. As mention in I.S. Code 1893-2002 (Part I) that structure will normally experience more ground motion, which is given in the code for design purpose. However, in view of the energy absorbing capacity available in inelastic range, ductile structure will be able to resist such shocks without much damage. Generally for two–three storied building analysis is not done. Axial load is calculated and it is increased by some percentage for considering the effect of moment. It is not wrong for short structures, for long span structures effect of moment is very large. Therefore this assumption gives in accurate results. So analysis is done for getting results. The paper comprises comparative study for cost reduction and saving in cement by using some mineral admixtures in M20 and M35 grade concrete. Keywords: Earthquake, High Grade Concrete, Mix Design, Analysis and Design