1PG Student, School of Mechanical and Building Science, VIT University, Chennai Campus
2PG Student, Civil Engineering Department, NIT, Warangal, Andhra Pradesh
3Professor, School of Mechanical and Building Science, VIT University, Chennai Campus
*Email id: jayashree.1610@gmail.com
Online published on 9 December, 2013.
This paper investigates the dynamic response of a space framed structure due to blast load. An explosion due to blast load can cause devastating damage on the building causing collapse of entire structure and loss of human life. Studies have been conducted on the dynamic response of structures to blast load. These studies generally help in enhancing the understanding of structural behavior to blast load. In this paper an attempt has been made to use Slurry Infiltrated Fiber Reinforced Concrete (SIFCON), a type of FRC with high fiber content as an alternative material to Reinforced Cement Concrete (RCC). SIFCON has high energy absorption capacity, higher strength and it is highly ductile. Space framed models are developed and time history analysis is carried out for blast load using the software package SAP 2000. The properties of SIFCON and RCC are derived from the experiments. The dynamic characteristics such as fundamental frequency, mode shapes are evaluated. The displacement time history response of frames with SIFCON and RCC due to blast load is compared. The results showed that the reduction in the displacement of about 25–30% is achieved using SIFCON.
Blast load, dynamic Response, RCC, SIFCON, SAP2000, Time History Analysis
