Mansoureh Rezaeemanesh

Mansoureh Rezaeemanesh
University of Tehran | UT · School of Civil Engineering

Earthquake engineer

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10
Publications
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Publications

Publications (10)
Article
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The objective of the present study is to develop and evaluate machine learning-based prediction models, employing the Artificial Neural Networks (ANNs), Genetic Programming (GP), and the Combinatorial Group Method of Data Handling (GMDH-Combi), for dynamic modulus (E*) of hot mix asphalt (HMA) estimation. To develop the models, an experimental data...
Conference Paper
Full-text available
The study of earthquake ground motion is a key issue in the field of earthquake resistance. Near-fault ground motions are more severe than other ground motions recorded that occur in the Far- Fault because proximity to the seismic source does not allow considerable attenuation of ground motion. Near-fault ground motion is characterized by its long-...
Cover Page
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Article
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The main contribution of this study is to open a discussion regarding the structural optimization associated with the cost efficiency and structural reliability sufficiency consideration. To do so, several various optimization approaches are investigated to deliberate both cost and reliability concerns. Particularly, particle swarm optimization is...
Article
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According to the recent Earthquake records, the earthquake duration is longer in some areas, resulting into more structural damage. One of the important factors in reducing earthquake damages is the separation gap between two adjacent structures. This case study investigated the effect of significant duration of the earthquake on two adjacent steel...
Article
This study presents new empirical prediction equations for a number of bracketed and uniform durations using the Iranian strong ground motion database of accelerograms for the shallow crustal earthquakes until 2018. The database includes 1147 records of 213 earthquake events with the magnitudes from 5.0 to 7.8 and rupture distances from 2 to 600 km...
Article
Full-text available
In this study, the relationship between different definitions of duration with peak ground acceleration, focal depth and soil conditions of the site using accelerometer records in Iran was calculated and presented. 1054 three-component records of 197 seismic events recorded with a moment magnitude greater than or equal to 5.0 were used. All data fo...
Article
Background and objective: Experience with past earthquakes and numerical analysis confirms that the durability of strong earth motion, significantly can affect the amount of failure of civil engineering systems. However, if the durability is related to a parameter which describes the intensity of the earth's motion, such as maximum velocity or maxi...
Thesis
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Research Aim: The complete characterization of earthquake ground motion includes the length of the interval of strong shaking as well as the amplitude and frequency content of the time series. The experience of past earthquakes and numerical analysis confirms that the durability of strong ground motion can significantly affect the degree of failure...

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Projects

Projects (3)
Project
The study of earthquake ground motion is a key issue in the field of earthquake resistance. Near-fault ground motions are more severe than other ground motions recorded during the same event and under similar conditions because proximity to the seismic source does not allow considerable attenuation of ground motion.
Project
Persian translation of the book by NEHRP Consultants Joint Venture A partnership of the Applied Technology Council and the Consortium of Universities for Research in Earthquake Engineering. The response of a structure to earthquake shaking is affected by interactions between three linked systems: the structure, the foundation, and the soil underlying and surrounding the foundation (FEMA, 2009). Soil-structure interaction analysis evaluates the collective response of these systems to a specified ground motion. The terms Soil-Structure Interaction (SSI) and Soil-Foundation-Structure Interaction (SFSI) are both used to describe this effect in the literature. This project presents a synthesis of the body of knowledge contained in SSI literature, which has been distilled into a concise narrative and harmonized under a consistent set of variables and units. Specific techniques are described by which SSI phenomena can be simulated in engineering practice, and recommendations for modeling seismic soil-structure interaction effects on building structures are provided.
Project
According to the recent Earthquake records, the earthquake duration is longer in some areas, resulting into more structural damage. One of the important factors in reducing earthquake damages is the separation gap between two adjacent structures. This case study investigated the effect of significant duration of the earthquake on two adjacent steel moment-resisting structures with different heights and near to active fault. The pounding between pairs of three 3, 6 and 9-story steel moment frames was evaluated using a nonlinear time history analysis method considering the reduced stiffness and strength. The results showed that for the intended type3-soil, the risk of pounding and collapse amplification among the 3- and 6-story buildings are higher than others. This is due to the necessity of the Iranian standard 2800 to calculate the separation gap by the nonlinear methods for the buildings with height more than 8 stories. Also, the analysis of the significant duration of the applied earthquakes demonstrated that this parameter is a determining and effective factor in the pounding of structures, especially the adjacent buildings with different heights. It is noteworthy all of the analysis was done by 9 earthquake records. This study recommended using the nonlinear method to calculate separation gap while designing two adjacent steel moment-resisting structures with different heights in the near-field area and on the soft soil.