Ali Reza

@iust.ac.ir

Railway tracks and Structures/School of Railway Engineering
Iran University of Science and Technology/Assistant Professor

Ali Reza


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https://researchid.co/ar_tkian

EDUCATION

PhD in Railway Engineering

RESEARCH INTERESTS

Railway Tracks, Ballast Mechanical Properties, Sleeper Behavior, Modal Analysis, Train-induced Vibration, Steel Structures, Moment Connections
14

Scopus Publications

396

Scholar Citations

10

Scholar h-index

10

Scholar i10-index

Scopus Publications

  • Effectiveness of Dynamic Vibration Absorber on Ground-Borne Vibration Induced by Metro
    Javad Sadeghi, Alireza Toloukian, Sogand Mehravar
    Vibration, 2025
    The application of dynamic vibration absorbers (DVAs) is a countermeasure to suppress vibrations induced by railway traffic. A key advantage of the DVA application is that it does not require any changes to the path of vibration propagation or the receiver of vibration. A review of the literature reveals the necessity of deriving the optimum properties of DVA to mitigate railway vibrations. To this end, the optimum DVA properties were investigated through the development of a two-dimensional finite element model of the track-tunnel-soil system. The model was validated using the results of a field test. A parametric study was made to obtain the optimum properties of DVA for different soils surrounding the tunnel. The results of the model analysis indicate that the DVA has better vibration reduction for metro tunnels built in soft soils as compared to those surrounded by medium and stiff soils. Also, the results disclose that the DVA reduces vibration radiated on the ground surface when the DVA natural frequency is tuned to a low frequency. Using the results of the parametric study, graphs are suggested to select the optimum properties of the DVA as a function of the soil around the tunnel.
  • Improvement of ballast behavior by inclusion of tire-derived aggregates with optimum size
    Javad Sadeghi, Alireza Toloukian, Mohammad Amin Zarei, Nabi Khani
    Construction and Building Materials, 2025
  • Metro-induced vibration attenuation using rubberized concrete slab track
    Javad Sadeghi, Alireza Toloukian, Yazdan Shafieyoon
    Construction and Building Materials, 2024
  • Behavior of sand-contaminated ballast reinforced with geogrid under cyclic loading
    Javad Sadeghi, Ali Reza Tolou Kian, Ali Khanmoradi, Mohammad Chopani
    Construction and Building Materials, 2023
  • Effects of particle gradations on cyclic behavior of ballast contaminated with sand
    Javad Sadeghi, Ali Reza Tolou Kian, Mohammad Chopani, Ali Khanmoradi
    Construction and Building Materials, 2022
  • Experimental Investigation of Mechanical Properties of Ballast Contaminated with Wet Sand Materials
    Javad Sadeghi, Ali Reza Tolou Kian, Mosarreza Fallah
    International Journal of Geomechanics, 2021
    Considerable parts of worldwide railway networks cross deserts where there are frequent sandstorms, which cause contamination of ballast. One of the most important challenges for railway i...
  • Effectiveness of geogrid reinforcement in improvement of mechanical behavior of sand-contaminated ballast
    Javad Sadeghi, Ali Reza Tolou Kian, Hossein Ghiasinejad, Mosarreza Fallah Moqaddam, Sepehr Motevalli
    Geotextiles and Geomembranes, 2020
  • Influences of railway ballast sand contamination on loading pattern of pre-stressed concrete sleeper
    Ali Reza Tolou Kian, Javad Sadeghi, Jabbar-Ali Zakeri
    Construction and Building Materials, 2020
  • Rib-reinforced moment connection of steel beam to box column
    Ali Reza Tolou Kian, Ardeshir Deylami
    Proceedings of the Institution of Civil Engineers Structures and Buildings, 2019
    Due to their excellent biaxial bending strength, box columns are widely employed in countries with high seismic risk such as Iran and Japan. Although extensive research into the moment connections between I-beams and wide-flange columns has been conducted, a review of the literature indicated that studies on I-beam to box column moment connections are insufficient. To fill this gap, the cyclic behaviour of a two-sided moment connection of an I-beam to built-up box column was studied in this work. Non-linear finite-element models of the connection were developed and validated using test results available in the literature. In the studied connection, the beam flanges are joined to the column flange through flange plates. To reinforce the connection, vertical top and bottom rib plates were welded to the column flange and the flange plates. A parametric study was carried out to investigate the influences of the geometry of the rib plates on the behaviour of the connection. The results indicated that rib plates decrease the stress on the groove weld between the flange plates and the column flange and have insignificant influences on the global responses of the connection.
  • Effect of unsupported sleepers on rail track dynamic behaviour
    Javad Sadeghi, Jabbar-Ali Zakeri, Ali Reza Tolou Kian
    Proceedings of the Institution of Civil Engineers Transport, 2018
    Railway track behaviour with unsupported prestressed sleepers has been investigated in the literature. However, some of the important factors – such as prestressing forces, variations of the sleeper cross-section along its length, losing or recovering contact between the sleeper and the ballast layer – have been omitted. These limitations have been addressed in this research. The effects of unsupported sleepers on the dynamic behaviour of railway track have been investigated, using an improved three-dimensional numerical model of track developed here. The validity of the model is evaluated by comparing the results obtained from the model with experimental results (obtained in this research and available in the literature). The influences of the size of the gap between the sleeper and the underlying ballast, the vehicle speed and the number of unsupported sleepers on the track dynamic behaviour were investigated. The effects of the various unsupported conditions of sleepers on the rail seat load, sleeper bending moment and sleeper–ballast contact force at various train speeds were illustrated. It was shown that consideration of sleeper prestress forces, detailed geometry of the sleepers and a more realistic assumption for the sleeper–ballast contact has considerably improved the accuracy of the results obtained from theoretical models.
  • Large-scale direct shear tests on sand-contaminated ballast
    Ali Reza TolouKian, Javad Sadeghi, Jabbar-Ali Zakeri
    Proceedings of the Institution of Civil Engineers Geotechnical Engineering, 2018
  • Experimental investigation of effects of sand contamination on strain modulus of railway ballast
    A. Kian, J. Zakeri, J. Sadeghi
    Geomechanics and Engineering, 2018
  • Improvement of mechanical properties of railway track concrete sleepers using steel fibers
    Javad Sadeghi, Ali Reza Tolou Kian, Amin Shater Khabbazi
    Journal of Materials in Civil Engineering, 2016
  • Effect of geometry of vertical rib plate on cyclic behavior of steel beam to built-up box column moment connection
    A. Deylami, A.R. Toloukian
    Procedia Engineering, 2011

RECENT SCHOLAR PUBLICATIONS

  • Effectiveness of Dynamic Vibration Absorber on Ground-Borne Vibration Induced by Metro
    J Sadeghi, A Toloukian, S Mehravar
    Vibration 8 (4), 62 , 2025
    2025
    Citations: 1
  • Methods for Determining Vibration Transfer Functions from Metro Systems to Adjacent Structures
    H Rabiee, A Toloukian, J Sadeghi
    The 9th International Conference on Recent Advances in Railway Engineering … , 2025
    2025
  • Examining Vibration Damping Methods through Trench Construction and the Use of Damping Materials
    A TolouKian, S Javad, S Mehravar
    The 9th International Conference on Recent Advances in Railway Engineering … , 2025
    2025
  • Improvement of ballast behavior by inclusion of tire-derived aggregates with optimum size
    J Sadeghi, A Toloukian, MA Zarei, N Khani
    Construction and Building Materials 458, 139530 , 2025
    2025
    Citations: 8
  • Metro-induced vibration attenuation using rubberized concrete slab track
    J Sadeghi, A Toloukian, Y Shafieyoon
    Construction and Building Materials 435, 136754 , 2024
    2024
    Citations: 7
  • Behavior of sand-contaminated ballast reinforced with geogrid under cyclic loading
    J Sadeghi, AR Tolou Kian, A Khanmoradi, M Chopani
    Construction and Building Materials 362, 129654 , 2023
    2023
    Citations: 24
  • Effects of particle gradations on cyclic behavior of ballast contaminated with sand
    J Sadeghi, AR Tolou Kian, M Chopan, A Khanmoradi
    Construction and Building Materials 342 (Part B), 127943 , 2022
    2022
    Citations: 18
  • Experimental investigation of mechanical properties of ballast contaminated with wet sand materials
    J Sadeghi, AR Tolou Kian, M Fallah
    International Journal of Geomechanics 21 (1), 04020241 , 2021
    2021
    Citations: 23
  • Effectiveness of geogrid reinforcement in improvement of mechanical behavior of sand-contaminated ballast
    J Sadeghi, ART Kian, H Ghiasinejad, MF Moqaddam, S Motevalli
    Geotextiles and Geomembranes 48 (6), 768-779 , 2020
    2020
    Citations: 70
  • Influences of railway ballast sand contamination on loading pattern of pre-stressed concrete sleeper
    AR Tolou Kian, J Sadeghi, JA Zakeri
    Construction and Building Materials 233 , 2020
    2020
    Citations: 42
  • Rib-reinforced moment connection of steel beam to box column
    AR Tolou Kian, A Deylami
    Proceedings of the Institution of Civil Engineers-Structures and Buildings … , 2019
    2019
    Citations: 3
  • Large-Scale Direct Shear Tests on Sand-contaminated Ballast
    AR Tolou Kian, J Sadeghi, JA Zakeri
    Geotechnical Engineering 171 (5), 451–461 , 2018
    2018
    Citations: 63
  • Experimental investigation of effects of sand contamination on strain modulus of railway ballast
    AR Tolou Kian, JA Zakeri, J Sadeghi
    Journal of Geomechanics & Engineering 14 (6), 563-570 , 2018
    2018
    Citations: 29
  • Effect of unsupported sleepers on rail track dynamic behaviour
    J Sadeghi, JA Zakeri, AR Tolou Kian
    Proceedings of the Institution of Civil Engineers-Transport 171 (5), 286-298 , 2018
    2018
    Citations: 36
  • Improvement of mechanical properties of railway track concrete sleepers using steel fibers
    J Sadeghi, AR Tolou Kian, A Shater Khabbazi
    Journal of Materials in Civil Engineering 28 (11), 04016131 , 2016
    2016
    Citations: 48
  • Study of cyclic behavior of moment connection of beam to built-up box column with welded flange plates and vertical rib plates
    A Deylami, A Tolou Kian
    Amirkabir Journal of Civil Engineering 46 (1), 39-48 , 2014
    2014
    Citations: 1
  • Effect of geometry of vertical rib plate on cyclic behavior of steel beam to built-up box column moment connection
    A Deylami, AR Toloukian
    Procedia Engineering 14, 3010-3018 , 2011
    2011
    Citations: 23

MOST CITED SCHOLAR PUBLICATIONS

  • Effectiveness of geogrid reinforcement in improvement of mechanical behavior of sand-contaminated ballast
    J Sadeghi, ART Kian, H Ghiasinejad, MF Moqaddam, S Motevalli
    Geotextiles and Geomembranes 48 (6), 768-779 , 2020
    2020
    Citations: 70
  • Large-Scale Direct Shear Tests on Sand-contaminated Ballast
    AR Tolou Kian, J Sadeghi, JA Zakeri
    Geotechnical Engineering 171 (5), 451–461 , 2018
    2018
    Citations: 63
  • Improvement of mechanical properties of railway track concrete sleepers using steel fibers
    J Sadeghi, AR Tolou Kian, A Shater Khabbazi
    Journal of Materials in Civil Engineering 28 (11), 04016131 , 2016
    2016
    Citations: 48
  • Influences of railway ballast sand contamination on loading pattern of pre-stressed concrete sleeper
    AR Tolou Kian, J Sadeghi, JA Zakeri
    Construction and Building Materials 233 , 2020
    2020
    Citations: 42
  • Effect of unsupported sleepers on rail track dynamic behaviour
    J Sadeghi, JA Zakeri, AR Tolou Kian
    Proceedings of the Institution of Civil Engineers-Transport 171 (5), 286-298 , 2018
    2018
    Citations: 36
  • Experimental investigation of effects of sand contamination on strain modulus of railway ballast
    AR Tolou Kian, JA Zakeri, J Sadeghi
    Journal of Geomechanics & Engineering 14 (6), 563-570 , 2018
    2018
    Citations: 29
  • Behavior of sand-contaminated ballast reinforced with geogrid under cyclic loading
    J Sadeghi, AR Tolou Kian, A Khanmoradi, M Chopani
    Construction and Building Materials 362, 129654 , 2023
    2023
    Citations: 24
  • Experimental investigation of mechanical properties of ballast contaminated with wet sand materials
    J Sadeghi, AR Tolou Kian, M Fallah
    International Journal of Geomechanics 21 (1), 04020241 , 2021
    2021
    Citations: 23
  • Effect of geometry of vertical rib plate on cyclic behavior of steel beam to built-up box column moment connection
    A Deylami, AR Toloukian
    Procedia Engineering 14, 3010-3018 , 2011
    2011
    Citations: 23
  • Effects of particle gradations on cyclic behavior of ballast contaminated with sand
    J Sadeghi, AR Tolou Kian, M Chopan, A Khanmoradi
    Construction and Building Materials 342 (Part B), 127943 , 2022
    2022
    Citations: 18
  • Improvement of ballast behavior by inclusion of tire-derived aggregates with optimum size
    J Sadeghi, A Toloukian, MA Zarei, N Khani
    Construction and Building Materials 458, 139530 , 2025
    2025
    Citations: 8
  • Metro-induced vibration attenuation using rubberized concrete slab track
    J Sadeghi, A Toloukian, Y Shafieyoon
    Construction and Building Materials 435, 136754 , 2024
    2024
    Citations: 7
  • Rib-reinforced moment connection of steel beam to box column
    AR Tolou Kian, A Deylami
    Proceedings of the Institution of Civil Engineers-Structures and Buildings … , 2019
    2019
    Citations: 3
  • Effectiveness of Dynamic Vibration Absorber on Ground-Borne Vibration Induced by Metro
    J Sadeghi, A Toloukian, S Mehravar
    Vibration 8 (4), 62 , 2025
    2025
    Citations: 1
  • Study of cyclic behavior of moment connection of beam to built-up box column with welded flange plates and vertical rib plates
    A Deylami, A Tolou Kian
    Amirkabir Journal of Civil Engineering 46 (1), 39-48 , 2014
    2014
    Citations: 1
  • Methods for Determining Vibration Transfer Functions from Metro Systems to Adjacent Structures
    H Rabiee, A Toloukian, J Sadeghi
    The 9th International Conference on Recent Advances in Railway Engineering … , 2025
    2025
  • Examining Vibration Damping Methods through Trench Construction and the Use of Damping Materials
    A TolouKian, S Javad, S Mehravar
    The 9th International Conference on Recent Advances in Railway Engineering … , 2025
    2025