Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Earthquakes and Structures Volume 10, Number 4, April 2016 , pages 913-938 DOI: https://doi.org/10.12989/eas.2016.10.4.913 |
|
|
|
Seismic evaluation of RC stepped building frames using improved pushover analysis |
||
Pradip Sarkar, A. Meher Prasad and Devdas Menon
|
||
| Abstract | ||
| ´Stepped building´ frames, with vertical geometric irregularity, are now increasingly encountered in modern urban constructions. This paper proposes a new approach to determine the lateral load pattern, considering the contributions from the higher modes, suitable for pushover analysis of stepped buildings. Also, a modification to the displacement coefficient method of ASCE/SEI 41-13 is proposed, based on nonlinear time history analysis of 78 stepped frames. When the newly proposed load pattern is combined with the modified displacement coefficient method, the target displacement for the stepped building frame is found to match consistently the displacement demand given by the time history analysis. | ||
| Key Words | ||
| stepped building; pushover analysis; lateral load pattern; displacement coefficient method; target displacement | ||
| Address | ||
| Pradip Sarkar: Department of Civil Engineering, National Institute of Technology Rourkela, Odisha - 769 008, India A. Meher Prasad and Devdas Menon: Department of Civil Engineering, Indian Institute of Technology Madras, Chennai - 600 036, India | ||