Name: majid pouramininan
Department: Engineering
Faculty: Construction
Academic Rank: Assistant Professor
Email: m . p o u r a m i n i a n @ i a u r a m s a r . a c . i r
Postal Address: - Postal Code: 4691966434

Studies

Degree:
Field:
University:
Country:
Graduated Year:
PhD
Structural Engineering
Science And Research Branch, IAU
Tehran, Iran
2016
Master's degree
Structural Engineering
Azarbaijan University of Tarbiat Moallem
Tabriz, Iran
2008
Bachelor's Degree
Civil Engineering
Islamic Azad University, CHALUS BRANCH
Iran
2004

Papers

Title
Magazine Name
Publish Year
Volume
Page No
The application of the novel football game algorithm to optimize the size of the beam
Erfan Atashzamzam, Majid Pouraminian, Somayyeh Pourbakhshian
2018
1
کاربرد الگوریتم فرا ابتکاری بازی فوتبال در بهینه سازی خرپا
Majid Pouraminian, Atashzamzam Erfan, Somayyeh Pourbakhshian
2018
1

Researches

Title
Engineering Optimization
Finite Element Analysis
Machine Learning
Probabilistic Design System
Reliability Analysis

Journal Articles

Title
Authors
Publication Date
Seismic Fragility Curve Development of Frames with BRB’s Equipped with Smart Materials subjected to Mainshock-Aftershock Ground Motion
Seyede Vahide Hashemi, Majid Pouraminian, Abbasali Sadeghi
1/21/2021
Conference
Journal
Journal of Structural and Construction Engineering
Volume
Issue
Pages
Publisher
Iranian Society of Structural Engineering
Description
The frames with Buckling Restrained Braces (BRB’s) are used as a lateral system. The braces often have a limit amount of ductility and dissipated energy in cyclic loading. Therefore, the use of Shape Memory Alloys (SMA’s) in braced frames with regard to the specific properties of these can be an effective improvement in the seismic behaviour of frames. These alloys become known without the need for replacement after an earthquake and the possibility of many deformations and reversal to initial state. Seismic fragility analysis is one of the most important methods in seismic performance-based design that which lead to seismic fragility curves. Fragility curve is a powerful tool for probabilistic vulnerability assessment of structures. In this paper, seismic behavior of frames with BRB’s and the effect of utilizing SMA’s were studied. Then, three 2D-frames with 3, 6 and 9 story were utilized. The OpenSees software used …
ANALYTICAL MODELS FOR OPTIMAL DESIGN OF A TRAPEZOIDAL COMPOSITE CHANNEL CROSS-SECTION
Somayyeh Pourbakhshian, Majid Pouraminian
3/4/2021
Conference
Journal
Civil and Environmental Engineering Reports
Volume
1
Issue
31
Pages
118-138
Publisher
SCIENDO
Description
In this paper, several analytical models are presented for the optimal design of a trapezoidal composite channel cross-section. The objective function is the cost function per unit length of the channel, which includes the excavation and lining costs. To define the system, design variables including channel depth, channel width, side slopes, freeboard, and roughness coefficients were used. The constraints include Manning’s equation, flow velocity, Froude number, and water surface width. The Simultaneous Perturbation Stochastic Approximation (SPSA) algorithm was used to solve the optimization problem. The results are presented in three parts; in the first part, the optimal values of the design variables and the objective function are presented in different discharges. In the second part, the relationship between cost and design variables in different discharges is presented in the form of conceptual and analytical models and mathematical functions. Finally, in the third part, the changes in the design variables and cost function are presented as a graph based on the discharge variations. Results indicate that the cost increases with increasing water depth, left side slope, equivalent roughness coefficient, and freeboard.
THE EFFECTS OF ADDITIVES TO LIGHTWEIGHT AGGREGATE ON THE MECHANICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT AGGREGATE CONCRETE
Mehdi KHOSHVATAN, Majid Pouraminian
3/4/2021
Conference
Journal
Civil and Environmental Engineering Reports
Volume
1
Issue
31
Pages
139-160
Publisher
SCIENDO
Description
In the paper, the effects of different percentages of additives (perlite, LECA, pumice) on the mechanical properties of structural lightweight aggregate concrete were tested and evaluated. For the research, 14 mixing designs with different amounts of aggregate, water, and cement were made. Experimental results showed that the specific gravity of lightweight structural concrete made from a mixture of LECA, pumice, and perlite aggregates could be 25-30% lighter than conventional concrete. Lightweight structural concrete with a standard specific gravity can be achieved by using a combination of light LECA with perlite lightweight aggregates (LA) and pumice with perlite in concrete. The results indicated that LECA lightweight aggregates show more effective behavior in the concrete sample. Also, the amount of cement had a direct effect on increasing the strength regardless of the composition of LAs. The amount of cement causes compressive strength to increase. Furthermore, the stability of different experimental models increased from 156 to 345 3kg m while increasing the amount of cement from 300 to 400 3kg m in the mixing designs of LECA and perlite for W/C ratios of 0.3, 0.35, and 0.4. For a fixed amount of cement equal to 300 kg, the compressive strength is reduced by 4% by changing the water to cement ratio from 0.5 to 0.4. The compression ratios of strength for 7 to 28 days obtained in this study for lightweight concrete were between 0.67-0.8. Based on the...
Reliability-based Seismic Assessment of Controlled Rocking Steel Cores
Navid Rahgozar, Majid Pouraminian, Nima Rahgozar
5/4/2021
Conference
Journal
Journal of Building Engineering
Volume
44
Issue
Pages
Publisher
Elsevier
Description
Controlled-rocking steel cores (CRSCs) effectively prevent earthquake-induced residual damage while may suffer large lateral displacements. This paper gives a particular emphasis on examining the seismic reliability of CRSCs. Accordingly, extensive nonlinear dynamic analyses are conducted for low- and mid-rise archetypes. A set of random variables (RV), including geometry parameters, material properties, and design details of post-tensioned cables (PTs) and energy dissipations (EDs), are considered for reliability assessment. The vectors of RVs are generated by Monte Carlo simulation for 5, 10, and 15% coefficient of variations. Considering uncertainty associated with RVs, peak displacement responses for CRSCs are determined under 44 far-field ground motions. The probability failure and reliability index are quantified for three performance levels, and sensitivity analysis is performed to measure the significance of RVs. Results indicate that the design procedure is reliable and the safety of CRSCs is provided; however, the probability failure for mid-rise CRSCs is more than low-rise archetypes.
Seismic Performance of Buckling Restrained Braced Frames with Shape Memory Alloy Subjected to Mainshock-Aftershock Near-Fault Ground Motion
Seyede Vahide Hashemi, Majid Pouraminian, Abbasali Sadeghi, Somayyeh Pourbakhshian
8/21/2021
Conference
Journal
The Modares Journal of Civil Engineering
Volume
21
Issue
4
Pages
Tarbiat Modares University
Publisher
Tarbiat Modares University
Description
Buckling-restrained braced (BRB) frames are steadily replacing concentrically braced frames because they can yield without buckling when subjected to both tension and compression loads. Though BRB frames are being widely used in construction industry especially for building structures in high seismicity areas such as Iran, it is shown that at large strains, a considerable amount of permanent deformation is generated at the support connector between the brace and the frame. This drawback can be overcome by providing recentering capabilities to the braced frame system. By applying the concept of a recentering system to the design of BRB frames, we used braced frames that incorporate BRBs with superelastic shape memory alloy (SMA). Also, the use of SMA in the bracing system causes damping and reduction of residual deformation. BRBs are considered as lateral load-bearing systems due to their non …
Performance of Gaskar Historical Minaret against Natural Wind and Earthquake Hazards
Majid Pouraminain; Elahe Didevar
8/30/2021
Conference
Journal
آناليز سازه-زلزله
Volume
18
Issue
2
Pages
47-58
Publisher
دانشگاه آزاد اسلامی واحد مراغه
Description
Historical brick minarets are the main elements of Iranian architecture and exist throughout the country in diverse dimensions and heights. In this research, Gaskar brick minaret with a height of 16.12 meters has been modeled by the finite element software by APDL programming and precise discretization, in order to achieve an accurate damage pattern. Then the demand for the both wind and earthquake loads is determined according to the national building codes and applied to the minaret structure. Macro-modeling has been utilized to model the masonry materials domain. Nonlinear properties are also assigned to masonry materials. The results presented that the minaret is safe against both of the design wind load (90km/h) and the fastest recorded wind in the world (205km/h). If up to 12 times the design wind load is applied to the windshield surface of the minaret, the nonlinear behavior of the building will begin. The minaret is also vulnerable to earthquakes and minor damage has occurred at the bottom of the minaret, indicating that the minaret is at risk of collapse.
Reliability analysis of concrete arch dam under stage construction and hydrostatic pressure by MCS and RS methods
Majid Pouraminian, Hesam Ekranejad
8/30/2021
Conference
Journal
Sharif Journal of Civil Engineering
Volume
Issue
Pages
Publisher
Sharif University of Technology
Description
The aim of this paper is to reliability analysis of the Pacoima concrete arch dam considering the construction stage. According to the technical literature and codes, the construction stage should be considered in the structural analysis of the concrete arch dams. Structural analysis was done by taking into account the uncertainties in the physical and mechanical properties of the dam body materials and the reservoir water level. Three parameters of normal reservoir water level, the density of dam body materials ,and elasticity modulus of dam body material with coefficients of variation of 5, 10 and 10% with normal distribution function are considered as random variables. Linear elastic behavior assumed for the constitutive law of concrete material in the finite element model. Two load combinations are considered. STG(W) is an unusual static load combination due to dam self-weight which considers the effects of dead load stage construction. STG(W+H) load combination is due to stage construction and hydrostatic reservoir pressure at normal water level. ST(W) and ST(W+H) are the unusual static and usual static load combinations without considering the construction stage. The sensitivity analysis of random variables to the maximum tensile stress of the dam body is investigated, and random parameters with more impact are specified. The results showed that the density of concrete is the most effective parameter in response to maximum tensile stress. Reliability analysis based on the load-resistance model has been utilized. The evaluation of implicit functions of load and resistance has been performed by the finite element method. Monte Carlo method with 20,000 iterations utilized for simulation and the Latin Hypercube method was used for Sampling. The maximum tensile stress in the dam body is considered as a limit state. The values of the probability of failure and reliability index are pf