Seismic Design Characterization of RC Special Moment Resisting Frames in Pakistan-Field Survey to Laboratory Experiments

Yasir Irfan Badrashi, Qaisar Ali, Mohammad Ashraf, Muhammad Rashid


This study was undertaken to study the influence of construction deficiencies on hysteretic behavior of exterior beam-column connections. Building stock survey was conducted in five major cities of Pakistan for identification and quantification of material and detailing disparities between design specifications and construction practices. The effect of these disparities was studied using quasi-static cyclic testing on two exterior beam-column connections; EJ-1A (code-compliant) with no deficiencies and EJ-2A (non-compliant) incorporating all identified deficiencies. Damage patterns and hysteretic force-deformation behavior of these models is presented and the performance of the two specimens is compared. The study found that moderate to high deficiencies exist between design specifications and construction practices for the construction of RC buildings in Pakistan. The study also concluded that significant loss of strength and ductility is observed between code-compliant and non-code-compliant exterior beam-column connections subjected to reverse cyclic loading.

Full Text:



BCP-SP, "Building Code of Pakistan-Seismic Provisions," 2007.

A. Naeem, Q. Ali, M. Javed, Z. Hussain, A. Naseer, S. M. Ali, I. Ahmed and M. Ashraf, "First Report on the Kashmir Earthquake of October 8, 2005," Earthquake Engineering Research Institute, EERI, 2005.

A. Naseer, A. N. Khan, Z. Hussain and Q. Ali, "Observed seismic behavior of buildings in northern Pakistan during the 2005 Kashmir earthquake," Earthquake Spectra, vol. 26, no. 2, pp. 425-449, 2010.

J. K. Bothara and K. Hiçyılmaz, "General observations of building behavior during the 8th October 2005 Pakistan earthquake," Bulletin of the New Zealand society for earthquake engineering, vol. 41, no. 4, pp. 209-233, 2008.

S. Pampanin, G. M. Calvi and M. Moratti, "Seismic behavior of RC beam-column joints designed for gravity only," in 12th European Conference on Earthquake Engineering, London, 2002.

S. Pampanin, G. Magenes and A. J. Carr, "Modeling of shear hinge mechanism in poorly detailed RC beam-column joints," in Concrete Structures in Seismic Regions, 2003.

M. Gencoglu and B. Mobasher, "The Strengthening of the Deficient RC Exterior Beam-Column Joints Using CFRP for Seismic Excitation," Structural Engineering, Mechanics and Computation, 1993.






  • There are currently no refbacks.

Copyright (c) 2016 Journal of Engineering and Applied Sciences

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN: 1023-862X  & eISSN:2518-4571