Kashif Salman
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Kashif Salman has a total of 6 co-authors. Here are the top co-authors by number of shared publications:
- Dookie Kim
Department of Civil and Environmental Engineering, Kongju National University, Cheonan, Republic of Korea
3 shared publications - Thanh-Tuan Tran
Kunsan National University
3 shared publications Abdul Latif
Civil and Environmental Engineering Department, Kunsan National University, Gunsan, Korea
1 shared publicationAtaullah Maher
Civil Engineering Department, Sir Syed University, Karachi, Pakistan
1 shared publicationDookie Kim
1 shared publicationSeung-Ryong Han
Research Institute, Korea Electric Power Corporation Engineering and Construction, 269 Hyeoksin-ro, Gimcheon-si 39660, Republic of Korea
1 shared publication
Latest Publications
- 1 September 2020
- Published by American Society of Civil Engineers (ASCE) in ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
- Vol. 6 (3) , 04020030
Probabilistic Models for Uncertainty Quantification of Soil Properties on Site Response Analysis
The geotechnical properties of soil deposit and the variability associated with their probable distributions have a profound impact on the seismic response of a site. In the present work, the influences of soil profile characterizations corresponding to the shear wave velocity ( ), density, and material degradation using various probabilistic distributions are investigated. A stochastic process is introduced for solving the spatial variability in soil deposit via Monte Carlo simulations. The results are validated with those obtained from the reference solution using the Strata program version 0.5.5. Additionally, sensitivity analysis is conducted to investigate the effect of the random input variables in the soil profile. The analysis concludes that the consideration of probabilistic distributions of the geotechnical parameters plays a significant role in evaluating the reliability of a site. The variability in material degradation has a greater impact than the unit weight on site response. Furthermore, comparatively the variability in for both the Toro model and log-normal distribution is identical for periods greater than 1.0 s, while in the range of lower periods, the former is lower than the latter with maximum reductions of 11.14% and 20.86% in surface response spectra and amplification factor, respectively.- 1 September 2020
- Published by American Society of Civil Engineers (ASCE) in ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
- Vol. 6 (3) , 04020030
Probabilistic Models for Uncertainty Quantification of Soil Properties on Site Response Analysis
The geotechnical properties of soil deposit and the variability associated with their probable distributions have a profound impact on the seismic response of a site. In the present work, the influences of soil profile characterizations corresponding to the shear wave velocity ( ), density, and material degradation using various probabilistic distributions are investigated. A stochastic process is introduced for solving the spatial variability in soil deposit via Monte Carlo simulations. The results are validated with those obtained from the reference solution using the Strata program version 0.5.5. Additionally, sensitivity analysis is conducted to investigate the effect of the random input variables in the soil profile. The analysis concludes that the consideration of probabilistic distributions of the geotechnical parameters plays a significant role in evaluating the reliability of a site. The variability in material degradation has a greater impact than the unit weight on site response. Furthermore, comparatively the variability in for both the Toro model and log-normal distribution is identical for periods greater than 1.0 s, while in the range of lower periods, the former is lower than the latter with maximum reductions of 11.14% and 20.86% in surface response spectra and amplification factor, respectively.- Open Access
- 1 June 2020
- Published by Elsevier in Nuclear Engineering and Technology
- Vol. 52 (6) , 1318-1326
Grouping effect on the seismic response of cabinet facility considering primary-secondary structure interaction
- 1 June 2020
- Published by Elsevier in Nuclear Engineering and Technology
- Vol. 52 (6) , 1318-1326
Open AccessGrouping effect on the seismic response of cabinet facility considering primary-secondary structure interaction
- 7 February 2020
- Published by Taylor & Francis in Journal of Nuclear Science and Technology
- Vol. 57 (7) , 800-812
Seismic capacity evaluation of NPP electrical cabinet facility considering grouping effects
This study investigates the fragility assessment of the electrical cabinet facility, a steel structural form that exhibits behavior and response patterns distinct from the normal structure. To evaluate this cause, a set of 40 ground motions was spectrally matched to the design response spectra (RG 1.60) and incremental dynamic analysis was considered. The two design guidelines including earthquake loss estimation methodology (HAZUS) and Nuclear Regulatory Commission (NUREG) were followed. Using the response statistics with the consideration of different damage states, the corresponding fragility curves were developed. For validation, the developed fragility functions were found to be consistent with the fragilities available in the HAZUS and NUREG. Subsequently, the seismic capacity for the group of cabinets was evaluated, which manifests a great influence on the probabilistic seismic risk assessment of the facility. The main thrust of this study was the significant alteration in the seismic capacity due to the grouping effects that account for 28% and 50% reduction in the probability of failure for two and three cabinets together. This effect can be considered as one of the important aspects that can induce a considerable impact on the seismic capacity evaluation and performance of the NPP electrical components.
- 7 February 2020
- Published by Taylor & Francis in Journal of Nuclear Science and Technology
- Vol. 57 (7) , 800-812
Seismic capacity evaluation of NPP electrical cabinet facility considering grouping effects
This study investigates the fragility assessment of the electrical cabinet facility, a steel structural form that exhibits behavior and response patterns distinct from the normal structure. To evaluate this cause, a set of 40 ground motions was spectrally matched to the design response spectra (RG 1.60) and incremental dynamic analysis was considered. The two design guidelines including earthquake loss estimation methodology (HAZUS) and Nuclear Regulatory Commission (NUREG) were followed. Using the response statistics with the consideration of different damage states, the corresponding fragility curves were developed. For validation, the developed fragility functions were found to be consistent with the fragilities available in the HAZUS and NUREG. Subsequently, the seismic capacity for the group of cabinets was evaluated, which manifests a great influence on the probabilistic seismic risk assessment of the facility. The main thrust of this study was the significant alteration in the seismic capacity due to the grouping effects that account for 28% and 50% reduction in the probability of failure for two and three cabinets together. This effect can be considered as one of the important aspects that can induce a considerable impact on the seismic capacity evaluation and performance of the NPP electrical components.
- 2 January 2020
- Published by Taylor & Francis in Journal of Structural Integrity and Maintenance
- Vol. 5 (1) , 40-50
Optimal control on structural response using outrigger braced frame system under lateral loads
This paper considers the static and dynamic analysis of a high-rise structure under the lateral loads. Firstly, the static analysis was carried out for four different structural systems (i.e. moment-resisting frame, building frame, and outrigger braced frame (OBF) system). Under the same static loading, it was found that the outrigger braced system provides an optimal control to high-rise structure. To earn these results, an analytical procedure was carried out that manifests the efficiency induced by the bracing system. Secondly, dynamic analysis was considered to evaluate the vibration response of a tall building. To this end, the outrigger system was compared with the Pendulum tuned mass dampers (PTMD). The parametric analysis investigates that the outrigger system provides an optimal reduction of 33% for one and 60% for two outriggers in the top displacement and drift response of the structure. This alteration in the response was verified using an analytical solution for the top and middle of the structure. The acceleration reduction capacity of outriggers was found to be 40% and PTMD with 35% respectively. Based on the comparative static and dynamic analysis OBF was found to be an effective addition to the sway frame.
- 2 January 2020
- Published by Taylor & Francis in Journal of Structural Integrity and Maintenance
- Vol. 5 (1) , 40-50
Optimal control on structural response using outrigger braced frame system under lateral loads
This paper considers the static and dynamic analysis of a high-rise structure under the lateral loads. Firstly, the static analysis was carried out for four different structural systems (i.e. moment-resisting frame, building frame, and outrigger braced frame (OBF) system). Under the same static loading, it was found that the outrigger braced system provides an optimal control to high-rise structure. To earn these results, an analytical procedure was carried out that manifests the efficiency induced by the bracing system. Secondly, dynamic analysis was considered to evaluate the vibration response of a tall building. To this end, the outrigger system was compared with the Pendulum tuned mass dampers (PTMD). The parametric analysis investigates that the outrigger system provides an optimal reduction of 33% for one and 60% for two outriggers in the top displacement and drift response of the structure. This alteration in the response was verified using an analytical solution for the top and middle of the structure. The acceleration reduction capacity of outriggers was found to be 40% and PTMD with 35% respectively. Based on the comparative static and dynamic analysis OBF was found to be an effective addition to the sway frame.