HIGH PERFORMANCE CEMENT CONCRETE SQUAT SHEAR WALLS UNDER REVERSE CYCLIC LOADING
N. Ganesan Professor of Civil Engineering, NIT Calicut, India ganesan@nitc.ac.in
P.V. Indira Professor of Civil Engineering, NIT Calicut, India indira@nitc.ac.in
P. Seena Ph D Scholar,Civil Engineering, NIT Calicut, India seenajiju17@gmail.com
Dr. N.Ganesan is a Professor of Civil Engineering at the National Institute of Technology, Calicut, India. He received his M.E and Ph.D degree from I.I.Sc, Bangalore. He is a fellow of The Institution of Engineers, India and IFIC consultant. He was a visiting professor at the Asian Institute of Technology, Bangkok and King Khalid University, Kingdom of Saudi Arabia.
Dr. P.V Indira is a Professor of Civil Engineering at the National Institute of Technology, Calicut. She received her M.Tech from IIT Madras and Ph.D degree from University of Calicut. She is a member of The Institution of Engineers, India.
P. Seena received her B.E (Civil Engineering) from Mangalore University Karnataka and M.Tech (Structural Engineering) from NIT Calicut. At present she is a Ph D scholar (QIP) in NIT Calicut, Kerala state.
Abstract: Behaviour of reinforced conventional concrete (CC) and reinforced high performance cement concrete (HPC) squat shear walls with aspect ratio one were investigated. The specimens were subjected to quasi static lateral reversed cyclic loading till failure. The high performance concrete (HPC) used was obtained based on the guidelines given in ACI 211.1 which was further modified by Aitcin. The longitudinal and transverse reinforcement ratios used in this study was 0.505%. The performance based parameters such as strength, stiffness degradation and energy dissipation capacity were obtained and the results are presented. Keywords: High performance concrete, Reverse cyclic load, Stiffness degradation, Squat shear wall, Ultimate load, Web reinforcement ratio.
1. Introduction The use of HPC in the construction of earthquakeresistant structures, long-span bridges, off-shore 100  Volume 44
Number 1
March 2014
structures, nuclear power plants, and other mega-structures generally result in the reduction in size and hence leads to lighter cost-effective structures. This brand of concrete has enhanced compressive strength, stiffness and durability. Other characteristics include almost no pasteaggregate transition zone, higher modulus of elasticity, very low permeability, exceptional abrasion resistance, outstanding resistance to freeze-thaw cycles, very low creep and high flexural strength [1]. Shear walls are commonly used to resist the actions imposed on buildings due to earthquake ground motions. Shear walls are efficient, in minimizing earthquake damage in structural and non structural elements in a building. Shear walls can also be an effective solution to rehabilitate moderately damaged existing structures. Most commonly used shear walls are symmetrical sections like rectangular and barbell shaped. Flanged shear walls are asymmetrical wall sections which are also often used. One of the The Bridge and Structural Engineer