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Paper Title
Comparative Linear Time History Analysis of Reinforced Concrete Buildings With Changing Frequency Content Using Staad Pro
  Saket Sharma,  Dr. Rajeev Chandak

Proper selection of seismic design forces for engineering structures requires specification of the expected intensity of ground shaking that the structure will experience during their lifetime. In order to take precaution for the loss of lives and damage of structures subjected to ground motion, it’s important to understand the characteristics of ground motion. The most important dynamic characteristics of ground motion are peak ground acceleration (PGA), frequency content and duration. The more common practice adopted by many seismic codes is to use peak acceleration as a single measure of ground motion intensity. However, as more earthquake records were obtained, it became apparent that the use of a single design spectral shape scaled by peak site acceleration is inadequate to cover over all sites. Many recorded earthquake ground motions have response spectra dramatically different from the standard design spectrum. Ground motions have varying frequency contents as l0w, intermediate and high. Present work studies the effect of varying frequency content of ground motion on reinforced concrete buildings. Linear time history analysis is performed in STAAD Pro software on regular 3D two, six and twenty storey R.C. buildings with six ground motions of low, intermediate and high frequency contents having same duration and peak ground acceleration. The response of buildings due to the ground motions in terms of story displacement, story velocity, story acceleration and base shear are found. The results show that l0w-frequency content and intermediate-frequency content ground motions have significant effect on regular R.C. buildings. However, high-frequency content ground motions have very less effect on responses of the regular R.C. buildings.

Keywords- Ground Motion, Peak Ground Acceleration, Frequency Content, Linear Time History Analysis, Base shear, Storey displacement
Publication Details
Unique Identification Number - IJEDR1802081
Page Number(s) - 468-476
Pubished in - Volume 6 | Issue 2 | April 2018
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
  Saket Sharma,  Dr. Rajeev Chandak,   "Comparative Linear Time History Analysis of Reinforced Concrete Buildings With Changing Frequency Content Using Staad Pro", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 2, pp.468-476, April 2018, Available at :http://www.ijedr.org/papers/IJEDR1802081.pdf
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