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  • Ph.D. (2002)

    Civil Engineering, Structural Eng.

    Dept. of Civil Eng., University of Tokyo, Tokyo, Japan

  • M.Sc. (1998)

    Civil Engineering, Earthquake Engineering

    Dept. of Civil Eng., University of Tehran, Tehran, Iran

  • B.Sc. (1996)

    Civil Engineering

    Dept. of Civil Eng., University of Tehran, Tehran, Iran

  • Reinforced Concrete Structures (Numerical simulation, Development of computational tools, Seismic evaluation and rehabilitation)
  • Soil-Structures Interaction (Numerical simulation, soil constitutive laws, Foundation Rocking)
  • Probabilistic analysis (Stochastic and reliability analysis, Fragility curves, Probability of Seismic pounding)
  • Masonry Structures (Numerical simulation, Experimental study, Seismic evaluation and rehabilitation, Historical buildings)

    Prof. Masoud Soltani Mohammadi received his BSc and MSc from the University of Tehran and his Ph.D. in Structural Engineering from the University of Tokyo. He is currently a faculty member at the earthquake engineering department of Tarbiat Modares University.

    Contact

    Curriculum Vitae (CV)

    An Analytical Model for Shear Capacity Assessment of RC panels and Application to RC Beams

    Mohammad Mohammad Zakerinejad, Masoud Soltani Mohammadi
    Journal PaperModares Civil Engineering journal , Volume 21 , Issue 2, 2021 May 10, {Pages 0-0 }

    Abstract

    Classic one-way shear design provisions began with 45 degrees truss analogy introduced by Ritter and then rectified by addition of a concrete contribution term (V c) which was basically based upon the results of some academic tests of simply supported RC beams with concentrated loadings. There are some strong evidence and examples that this empirical approach and the difference between its experimental base and the effective mechanisms in many of existing applications can be disastrous. Shear failure of reinforced concrete falls in the category of brittle and undesirable failure modes and has caused unrectifiable incidents in structures and infrastructures throughout the world. Some of such examples are the shear failures observed in the ev

    Experimental investigation of twin confinement effects of FRP and steel rebar on cyclic compressive behavior of concrete

    R Tahaee, M Soltani, M Nikooravesh
    Journal Paper , , {Pages }

    Abstract

    Experimental and analytical investigation of seismic behavior of centercore-retrofitted masonry walls

    M Nikooravesh, M Soltani
    Journal Paper , , {Pages }

    Abstract

    Multi-Directional Fixed Crack Model Extended to Masonry Structures

    KM Y. Yamanoi, T. Miura, M. Soltani
    Journal Paper , , {Pages }

    Abstract

    Compressive behavior of RC members with rectangular continuous transverse reinforcement

    M Zakerinejad, M Soltani
    Journal Paper , , {Pages }

    Abstract

    Seismic Retrofitting of Persian Arched Walls by Centercore Method: Experimental and Numerical Investigation

    M Nikooravesh, M Soltani, E Mohammadi
    Journal Paper , , {Pages }

    Abstract

    Hysteretic behavior of link beams with different cross-sections and stiffener arrangements

    Samira Ebrahimi, Hamzeh Shakib, Masoud Soltani, Seyed Mehdi Zahrai
    Journal PaperJournal of Constructional Steel Research , Volume 170 , 2020 July 1, {Pages 106084 }

    Abstract

    In conventional engineering practice, the use of stiffeners and flanges on both faces of stiffened web panels for I-shaped link beams provides fully restrained boundary conditions. In tubular link beams, however, the stiffened web panels possess simply supported boundary conditions due to the use of single-sided stiffeners and flanges.This study investigates the boundary condition effects of stiffened web panels in tubular and I-shaped link beams on their rotation capacity assuming similar area, moment of inertia, length and stiffener spacing. Based on the numerical results, I-shaped link beams demonstrated an approximately 78% higher rotation capacity compared to tubular link beams under the same conditions which could be due to the better

    Experimental evaluation of nonlinear behavior of unreinforced masonry (URM) walls retrofitted using center-core technique

    Ali Shahri, Ali Massumi, Masoud Soltani Mohammadi, Peyman Homami
    Journal PaperJournal of Structural and Construction Engineering , 2020 May 3, {Pages }

    Abstract

    Earthquake vulnerability is the major weakness of unreinforced masonry structures. Various methods have so far been proposed to strengthen such structures against earthquakes. The recommended procedures are not especially suitable for this type of structures, that are meanwhile historically and culturally valuable. One of the adequately suitable methods of retrofitting of this particular type of structures is the center-core technique; based on which the fa?ade of buildings with no change whatsoever. Scantly little studies have so far been conducted on structural retrofitting and the essential research carried out in this area has focused on the study of masonry piers. In this study, the in-plane nonlinear behavior of two full scale unreinf

    Implementation of smeared crack approach in rigid block and spring modeling of reinforced concrete

    Saeed Moshirabadi, Masoud Soltani
    Journal PaperEngineering Structures , Volume 201 , 2019 December 15, {Pages 109779 }

    Abstract

    The main purpose of this study is to investigate the structural behavior and cracking response of reinforced concrete (RC) members on the basis of Rigid Block and Spring Method (RBSM). The main problem of this method i.e. the independent evaluation of springs’ stiffness is discussed and modified based on the concept of smeared crack approach. The response of RC membrane element is evaluated by considering the stress transfer mechanisms involving axial behavior of the cracked/un-cracked concrete, axial behavior of the reinforcement and the stress transfer across cracks due to aggregate interlock. A non-iterative approach for estimating the reinforcing bars’ strains based on the shear strain of cracked RC domain is proposed using approxim

    Development of discrete element method for nonlinear analysis of unreinforced masonry members

    Saeed Moshirabadi, Masoud Soltani Mohammadi
    Journal PaperModares Civil Engineering journal , Volume 19 , Issue 4, 2019 November 10, {Pages 0-0 }

    Abstract

    One of the oldest and most durable building materials used for a large number of ancient structures by mankind is the masonry material. Few maintenance costs of masonry building, as well as its proper resistance to fire, have caused to be the boost building materials nowadays. Two major modeling approaches for simulating the behavior of masonry members are micro-modeling (heterogeneous model) and macro-modeling (homogeneous model). In the micro-modeling approach, the failure mechanisms and cracking pattern are precisely determined; but because of the required specifications and details, it is considered as a sophisticated modeling approach. In this study, the main purpose is to develop micro-modeling approach based on a discrete element met

    An Equivalent Fiber Frame Model for Nonlinear Analysis of Masonry Structures

    Behrooz Yousefi, Masoud Soltani
    Journal PaperInternational Journal of Architectural Heritage , 2019 July 21, {Pages 25-Jan }

    Abstract

    In this study, an equivalent fiber frame model based on an analytical method is proposed for masonry structures assessment. The equivalent frame model (EFM) is a simple applicable approach that is relatively accurate and bears a low computational cost. It holds proper convergence and adaptability compared to micro modeling methods. The progression of nonlinearity over the cross-section and along the height of masonry walls is simulated by proposed homogenized constitutive models. Moreover, a new procedure is proposed for the evaluation of unreinforced masonry walls strengthened with reinforced concrete layers. To examine the shear behavior (bed joint sliding mode of failure, and diagonal tension mode), an interface element based on a smeare

    The investigation of pushover lateral force profile characteristics considering record uncertainties

    Masoud Soltani Mohammadi, Mohammad Jafari
    Journal PaperModares Civil Engineering journal , Volume 17 , Issue 6, 2018 March 15, {Pages 93-107 }

    Abstract

    In recent years nonlinear static analysis method has been widely used in the field of performance based earthquake engineering. Whereas the capabilities of this method is well recognized, it still has inherent shortcomings. Accordingly, by considering aspects such as nonlinear properties of members, higher modes effect, and the computational cost, the accuracy of the method should be investigated. Although an enormous study have been carried out to improve the pushover analysis, the proposed methods are almost deterministic and cannot directly consider the seismic records uncertainties. Toward this challenge, the present study aims to examine the requirements of inelastic static analysis method through a comparison with incremental dynamic

    Micromechanical modeling of tension stiffening in FRP-strengthened concrete elements

    Bahman Ghiassi, Masoud Soltani, Sara Rahnamaye Sepehr
    Journal PaperJournal of Composite Materials , Volume 52 , Issue 19, 2018 August , {Pages 2577-2596 }

    Abstract

    This article presents a micromodeling computational framework for simulating the tensile response and tension-stiffening behavior of fiber reinforced polymer–strengthened reinforced concrete elements. The total response of strengthened elements is computed based on the local stress transfer mechanisms at the crack plane including concrete bridging stress, reinforcing bars stress, FRP stress, and the bond stresses at the bars-to-concrete and fiber reinforced polymer-to-concrete interfaces. The developed model provides the possibility of calculating the average response of fiber reinforced polymer, reinforcing bars, and concrete as well as the crack spacing and crack widths. The model, after validation with experimental results, is used for

    A stochastic adaptive pushover procedure for seismic assessment of buildings

    Mohammad Jafari, Masoud Soltani
    Journal PaperEarthquakes and Structures , Volume 14 , Issue 5, 2018 January , {Pages 477-492 }

    Abstract

    Recently, the adaptive nonlinear static analysis method has been widely used in the field of performance based earthquake engineering. However, the proposed methods are almost deterministic and cannot directly consider the seismic record uncertainties. In the current study an innovative Stochastic Adaptive Pushover Analysis, called" SAPA", based on equivalent hysteresis system responses is developed to consider the earthquake record to record uncertainties. The methodology offers a direct stochastic analysis which estimates the seismic demands of the structure in a probabilistic manner. In this procedure by using a stochastic linearization technique in each step, the equivalent hysteresis system is analyzed and the probabilistic characteris

    Behavior of unreinforced masonry piers strengthened using centercore method; experimental investigation

    Morteza Nikooravesh, Masoud Soltani
    Journal PaperConstruction and Building Materials , Volume 189 , 2018 November 20, {Pages 236-244 }

    Abstract

    This research deals with the behavior of masonry piers made by fired bricks and gypsum-clay mortar, strengthened using centercore method. Compressive strength of masonry is evaluated along one year using 66 samples. Shear behavior of joints is defined using Mohr-Coulomb failure criterion; the friction angle and cohesion was measured using 54 triplet samples at 40-day age. Moreover, the cohesion is evaluated along one year using 66 triplet samples. Seven identical pier specimens were constructed and strengthened using centercore with two different retrofitting schemes (anchorage of the centercore to the base) and two different rebar sizes. All of the specimens were tested under cyclic in-plane loading. The retrofitted specimens without ancho

    Probabilistic seismic performance evaluation of vertically irregular steel building considering soil–structure interaction

    Farshad Homaei, Hamzeh Shakib, Masoud Soltani
    Journal PaperInternational Journal of Civil Engineering , Volume 15 , Issue 4, 2017 June 1, {Pages 611-625 }

    Abstract

    In this paper, the probabilistic seismic performance of vertically irregular steel buildings, considering soil–structure interaction effects, is evaluated. Various irregular distributions of structural properties, including mass, stiffness and strength along the height of three-dimensional moment resisting steel frames were intended. The finite element model of soil medium was created with solid elements below the structure. The nonlinear material behavior of soil was considered as well. Nonlinear incremental dynamic analysis was performed to evaluate the flexible-base structural performance in the framework of probabilistic performance-based earthquake engineering. According to the median curves of intensity demand of stru

    In-plane response of unreinforced masonry walls confined by reinforced concrete tie-columns and tie-beams

    Masoud Amouzadeh Tabrizi, Masoud Soltani
    Journal PaperAdvances in Structural Engineering , Volume 20 , Issue 11, 2017 November , {Pages 1632-1643 }

    Abstract

    This article focuses on the experimental and analytical investigations of masonry walls surrounded by tie-elements under in-plane loads. The experimental results of an unconfined and a confined masonry wall, tested under reversed cyclic lateral loads, are presented. For numerical study, a micro-modeling strategy, using smeared-crack-based approach, is adopted. In order to validate the numerical approach, experimental test results and data obtained from the literature are used, and through a systematic parametric study, the influence of adjoining walls and number of tie-columns on the seismic behavior of confined masonry panels is numerically assessed and a simple but rational method for predicting the nonlinear behavior of these structures

    Expected extreme value of pounding force between two adjacent buildings

    Sepideh Rahimi, Masoud Soltani
    Journal PaperSTRUCTURAL ENGINEERING AND MECHANICS , Volume 61 , Issue 2, 2017 January 25, {Pages 183-192 }

    Abstract

    Seismic pounding between adjacent buildings with inadequate separation and different dynamic characteristics can cause severe damage to the colliding buildings. Efficient estimation of the maximum pounding force is required to control the extent of damage in adjacent structures or develop an appropriate mitigation method. In this paper, an analytical approach on the basis of statistical relations is presented for approximate computation of extreme value of pounding force between two adjacent structures with equal or unequal heights subjected to stationary and non-stationary excitations. The nonlinearity of adjacent structures is considered using Bouc-Wen model of hysteresis and the pounding effect is simulated by applying the nonlinear vis

    Probabilistic seismic assessment of structures considering soil uncertainties

    Sara Hamidpour, Masoud Soltani, Mojtaba Shabdin
    Journal PaperEARTHQUAKES AND STRUCTURES , Volume 12 , Issue 2, 2017 February 1, {Pages 165-175 }

    Abstract

    This paper studies soil properties uncertainty and its implementation in the seismic response evaluation of structures. For this, response sensitivity of two 4- and 12-story RC shear walls to the soil properties uncertainty by considering soil structure interaction (SSI) effects is investigated. Beam on Nonlinear Winkler Foundation (BNWF) model is used for shallow foundation modeling and the uncertainty of soil properties is expanded to the foundation stiffness and strength parameters variability. Monte Carlo (MC) simulation technique is employed for probabilistic evaluations. By investigating the probabilistic evaluation results it's observed that as the soil and foundation become stiffer, the soil uncertainty is found to be less importan

    On Estimation of Seismic Residual Displacements in Reinforced Concrete Single-Column Bridges Through Force–Displacement Method

    Mokhtar Ansari, Farhad Daneshjoo, Masoud Soltani Mohammadi
    Journal PaperInternational Journal of Civil Engineering , Volume 15 , Issue 4, 2017 June 1, {Pages 473-486 }

    Abstract

    Bridges normally undergo nonlinear deformations during a near-field strong ground motion resulting in a critical deviation of their columns from the plumb state due to considerable residual deformations. The conventional hysteresis models formulated for typical concrete columns are normally used for this purpose which most of times fail to correctly predict the residual deformations occurred as a result of a one-sided or directivity pulse excitation. The present research aims at development of a peak-oriented hysteresis model being able to regenerate residual deformations more reasonable compared with the conventional hysteresis models. This multi-linear peak-oriented model considers strength deterioration in each half cycle

    Current Teaching

    • MS.c.

      Advanced Reinforced Concrete Structures

    Teaching History

    • Ph.D.

      Random Vibrations

    • MS.c.

      Seismic Retrofitting of Existing Structures

    • 2020
      Alimohammadi, Nikoo
      Simulation of the behavior of reinforced concrete members under fatigue load by smeared crack approach
    • 2021
      Hosseini, Maryam sadat
    • 2021
      Taherpour, Babak
    • 2021
      Farhadi Gholyanlou, Mostafa
    • 2020
      Mirzamohammadi, Sajjad
      Development of a sprayable fiber-reinforced cementitious composite for the rehabilitation of structural components
      Data not found
    • Member of the Technical Committee for the Renovation and Rehabilitation of Schools. Organization for Development, Renovation and Equipping Schools of Iran, 2010-2014
    • Collaboration with JAMM Design and Development Eng. Co., for Development of a technical provision for seismic design, evaluation and rehabilitation of hospitals and medical centers in the Tehran region, 2011-2012
    • Collaboration with JAMM Design and Development Eng. Co., (Project Manager Co. for Tehran Schools Rehabilitation), -2012
    • Member of Structural Committee of Iranian Resources and Engineering Management Company, IREMCO, Project Manager co. for Iran s Residential Building and Lifelines
    • Technical Project Manager for Seismic Evaluation of Fars, Neyshabour and Loshan Power Plants in 2003.
    • Cooperation with the Institute of Geophysics of the University of Tehran (Member of the research team for two research projects) in 1998
    • Cooperating with the Department of Earthquake Engineering, Power Research Center (MATN), 1996-1998.
    • Iranian Concrete Design Code, member of technical committee, 2014 till now
    • “Regulations for Seismic Evaluation and Rehabilitation of Masonry Walls Retrofitted by Shotcrete, Project Manager, State Organization of Schools Renovation, development and mobilization. 2013 till now
    • Seismic assessment of historic masonry schools, Project Manager, State Organization of Schools Renovation, development and mobilization, 2012-1015
    • “Revision of Instruction for Seismic Rehabilitation of Existing Buildings, Chapter 4, A member of developing team, 2010
    • Determination of a Site Dependent Design Response Spectrum for Sahand Heat Power Plant. A member of research team, Geophysics Organization of the University of Tehran, Iran.1999
    • Seismic analysis and design of tall elevators of Shazand refinery of Arak. Tehran, 1998, A member of research team
    • Seismic response of tall chimneys and cooling towers, MATN (Power Research Center of Iran), Tehran, 1997
    • “Design Loads for Design of Secondary Systems and Equipment’s Supports In: Draft of Earthquake Code for Power Plants, MATN (Power Research Center of Iran), Tehran, 1997
    • Floor Response Spectra and Seismic Loads Determination for Design of Non-structural Systems, MATN (Power Research Center of Iran), Tehran, 1997
    • Head of Technical and Construction Management office, TMU, 2008-2009
    • Dean of Faculty of Civil and Environmental Engineering, 2020 till now

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