H. Naderpour

H. Naderpour
Semnan University · Faculty of Civil Engineering

Professor (Full)
Resilience; Artificial Intelligence

About

272
Publications
164,979
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
2,587
Citations
Introduction
Hosein Naderpour received his Ph.D. degree with high honors in Structural Engineering. He then joined Semnan University where he is presently Professor of Structural Engineering. Since joining the faculty of Civil Engineering at Semnan University, Dr. Naderpour has taught a variety of undergraduate and graduate courses in the areas of structural engineering, numerical methods, mechanics of materials, structural stability, concrete structures, structural reliability, and soft computing.
Additional affiliations
July 2018 - February 2019
The University of Tokyo
Position
  • Professor
December 2015 - present
Semnan University
Position
  • Professor (Associate)
January 2014 - April 2016
Semnan University
Position
  • Associate Professor, Vice President for Academic and Graduate Affairs

Publications

Publications (272)
Article
Full-text available
Due to high strength and ductility, concrete filled steel tube columns have been highly regarded in recent decades and many experimental studies have been carried out in predicting the strength of these columns. Increase in compressive strength of concrete core by the lateral confinement provided by steel tube and delay of the steel local buckling...
Article
Full-text available
In this study, a new mathematical model is developed composed of two parts, including harmonic and polynomial expressions for simulating the dominant velocity pulse of near fault ground motions. Based on a proposed velocity function, the corresponding expressions for the ground acceleration and displacement time histories are also derived. The prop...
Article
Full-text available
Seismic response of structures in the vicinity of causative earthquake faults can be significantly different than those observed further away from the seismic source. In the near fault zone, ground motions are significantly influenced by the rupture mechanism and slip direction relative to the site and by the permanent ground displacement at the si...
Article
Full-text available
Composite Reinforced Concrete (RC) wall system refers to a cantilever composite wall, where steel or Fiber Reinforced Polymer (FRP) components are embedded in or attached to an RC wall. The results of an analytical and parametric study on the effectiveness of using externally bonded steel plates and FRP sheets on RC shear walls as a retrofit techni...
Article
Strengthening and retrofitting of concrete columns by wrapping and bonding FRP sheets has become an efficient technique in recent years. Considerable investigations have been carried out in the field of FRP-confined concrete and there are many proposed models that predict the compressive strength which are developed empirically by either doing regr...
Article
Due to the adverse effects of local corrosion of bars on the behavior of reinforced concrete structures, this problem has been investigated by many experimental studies. Reducing the cross-sectional area of steel bars due to corrosion diminishes the bearing capacity. On the other hand, weakening the interaction characteristics between bar and concr...
Presentation
Full-text available
Do you know Transit? Watch this video.
Preprint
Seismic resilience is the residual capacity of a damaged system for recovering and sustaining an acceptable level of performance as a consequence of a seismic event. Firstly, this paper summarizes the current calculation framework of seismic resilience using fragility analyses. After that, a new metric based on vulnerability analyses is developed t...
Article
Full-text available
This paper addresses geometrically nonlinear topology optimization using IsoGeometric Analysis (IGA) and Level Set Method (LSM) under plane stress assumptions. The IGA is employed to solve governing equations and accurately describe geometric modeling. The pointwise gradient-based sensitivity analysis is applied to derive the normal velocity of the...
Article
Full-text available
Since post-mainshock events following a major earthquake are likely to occur, it is imperative to have an understanding of the functionality status of mainshock-damaged bridges to make more informed decisions. This paper examines the post-earthquake operability of a typical highway bridge class in reference to the time-varying nature of aftershock...
Article
Full-text available
The methods for preventing earthquake-induced structural pounding between two adjacent buildings include ensuring a sufficient separation distance between them or decreasing their relative displacement during seismic excitation. Some equations or even specific values of such gap sizes between two buildings have been introduced so as to avoid collis...
Article
Full-text available
This article presents a neuro-fuzzy model to predict the resilience index of reinforced concrete moment frames of school buildings. For this purpose, several parameters, including the total height to total width ratio, period, spectral acceleration, peak ground velocity, the effective duration of the earthquake, and distance from the fault, have be...
Article
Nonlinear dynamic analysis (NDA) needs a large computation time and volume. In this study, an innovative method is proposed based on utilizing discrete wavelet transform to reduce the computational volume and time of NDA. For this purpose, several far- and near-field ground motion records are selected and decomposed into three levels using Wavelet...
Code
MATLAB Codes for Constrained and Unconstrained Problems based on a novel astrophysics-inspired meta-heuristic optimization algorithm, namely Transit Search (TS)
Article
Full-text available
In this article, a novel astrophysics-inspired meta-heuristic optimization algorithm, namely Transit Search (TS) is proposed based on a famous exoplanet exploration method. More than 3800 planets have been detected using transit technique by the database of the space telescopes. Transit is a method that has shown more potential than the second well...
Article
This research investigated how cement content, the water to cement (W/C) ratio, and the sand to aggregate (S/A) ratio may affect Roller-Compacted Concrete (RCC) mechanical properties. Results were obtained through experimental tests and response surface methodology (RSM) analysis. Two cement content, three W/C ratios, and three S/A ratios were impl...
Cover Page
Full-text available
https://www.mdpi.com/journal/sustainability/special_issues/building_materials_construction
Article
This article aims to present the results of an investigation on detection and quantification of damage location and severity for steel structures using wavelet packet transform for denoising the initial signals, in combination with a peak picking technique, to capture the modal parameters of the structures. In the peak picking technique, as an exte...
Article
Full-text available
To provide lateral resistance in structures as well as buildings, there are some types of structural systems such as shear walls. The utilization of lateral loads occurs on a plate on the wall's vertical dimension. Conventionally, these sorts of loads are transferred to the wall collectors. There is a significant resistance between concrete shear w...
Preprint
Full-text available
A major cause of local to total damages is related to structural pounding in a large number of past earthquakes. In general, these collisions take place as a result of differences in the dynamic characteristics of the colliding structures. To acquire a better perception of the behavior of structures, in this paper, three structures featuring differ...
Article
Full-text available
In this paper, three different damage indexes were used to detect nonlinear damages in two adjacent Reinforced Concrete (RC) structures considering pounding effects. 2-, 4- and 8-story benchmark RC Moment Resisting Frames (MRFs) were selected for this purpose with 60%, 75%, and 100% of minimum separation distance and also without any in-between sep...
Article
This paper addresses geometrically nonlinear topology optimization using IsoGeometric Analysis (IGA) and Level Set Method (LSM) under plane stress assumptions. The IGA is employed to solve governing equations and accurately describe geometric modeling. The pointwise gradient-based sensitivity analysis is applied to derive the normal velocity of the...
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-...
Article
Full-text available
This article aims to utilize IsoGeometric Analysis (IGA) and Level Set Method (LSM) for topology optimization of elastoplastic plane stress problems. The IGA is employed to model geometries and calculate unknown displacements by satisfying equilibrium for materially-nonlinear problems. The von Mises elastoplastic material behavior model with and wi...
Article
In this article, new efficient methods are presented to classify failure modes in reinforced concrete columns. For this purpose, machine learning techniques were utilized with consideration of laboratory datasets collected from the literature. Two different approaches, including decision tree and artificial neural network, have been studied to dete...
Article
The aim of the present paper is to verify the effectiveness of the artificial neural network (ANN) in predicting the peak lateral displacement of multi-story building during earthquakes, based on the peak ground acceleration (PGA) and building parameters. For the purpose of the study, the lumped-mass multi-degree-of-freedom structural model and dif...
Article
One of the most important parameters used in the frame design process is the fundamental period. Numerous relationships are provided in the regulations and articles to determine the above parameter. However, due to the lack of optimal accuracy of existing equations, researchers are trying to improve them and increase the computational accuracy of t...
Article
Full-text available
The shape memory alloys (SMAs) are special materials able to withstand large non-elastic deformations regaining their original form by removing stress. High fatigue strength and proper resistance to corrosive agents are the specific characteristics of these alloys. This article explores the SMA and carbon fiber reinforced polymer (CFRP) at designat...
Article
Even small torsional moments can produce significant stress in beams and alter the behavior of the entire structure. Although many studies on the torsional behavior of reinforced concrete (RC) beams strengthened with fiber-reinforced polymer (FRP) sheets, there are still some uncertainties regarding the behavior of these beams under combined torsio...
Article
Full-text available
Human factors are one of the main reasons for structural damage as they decrease the bearing capacity and also lead to an inaccurate estimation of the structure. Previous studies show that the use of CFRP in the damaged structures can significantly increase their bending and shear capacity. This study examines the capacity and cracks distribution i...
Article
Uncertainties in seismic demand and structural capacity create conservatism in the acceptance criteria of structural performance levels. This conservatism can be reduced and designs optimised by considering and reducing uncertainties. In seismic rehabilitation, a secondary system added to an existing structure has probabilistic parameters that can...
Article
Full-text available
In recent years, the use of composite rebars in reinforced concrete structures has received much attention due to its high corrosion resistance, significant tensile strength, and appropriate non-magnetization characteristics. Due to the lower modulus of elasticity of composite rebars than steel rebars, concrete beams reinforced with composite rebar...
Article
In this article, seismic fragility of a base-isolated special Reinforced Concrete (RC) moment frame is investigated under near-fault pulse-type ground motion records. The vulnerability of the displacement-dominated performance of isolator devices to a likely vibration resonance caused by such records is the focus of the study. For this purpose, Lea...
Article
In reinforced concrete (RC) moment frames, the performance of the whole structure to provide a suitable strength against lateral loads depends on the behavior of each structural element. Therefore, the capacity of such members plays a vital role in the final response of RC buildings. However, the nonlinear nature of complex materials like concrete...
Article
The purpose of this paper is to present an innovative equation to predict the moment capacity of spirally reinforced concrete columns with high accuracy using a combination of neural network and metaheuristic optimization algorithms. To this end, a large experimental database has been gathered to train a neural network with seven independent parame...
Article
Soft computing (SC), due to its high abilities to solve the complex problems with uncertainty and multiple parameters, has been widely investigated and used, especially in structural engineering. They have successfully estimated the capacity of structural reinforced concrete (RC) members and determined the properties of concrete. There are so many...
Article
In shear wall-based buildings, locating the shear wall in plan has an important role in the resistance of seismic loading. In this article, the minimum torsion is considered as one of the main goals for optimal layout of shear walls, unlike the common method that accepts a certain torsion limit. The method presented is in accordance with the princi...
Article
This study aims to present an approach to investigate the reliability levels of reinforced concrete (RC) columns confined by Fiber Reinforced Polymers (FRP) subjected to concentric loading. First, the statistical properties of random variables such as model error, FRP strain efficiency factor (FSE factor) and axial resistance of columns are investi...
Article
Peak shear strength estimation of RC shear walls is one of the influential parameters on the design of RC shear walls. Considering all models and equations provided by researchers and building design codes, it is still not possible to estimate the peak shear strength of shear walls with high level of accuracy. Therefore, the authors proposed three...
Article
Full-text available
Using high-strength reinforcements (HSRs) has several benefits in terms of financial and execution considerations. However, possible effects of HSR application on structural behavior such as ductility, energy dissipation, and damage process are not fully known for the researchers. In this study, firstly the HSR effects on the cyclic behavior, crack...
Article
Full-text available
Seismic excitations may lead to collisions between adjacent civil engineering structures, causing major damage. In this paper, an effective equation for calculating the gap size index is proposed so as to provide the optimum separation distance preventing structural pounding during different earthquakes. Evaluation of the best prediction of the req...
Article
Previous earthquakes have shown that for structures that experienced a significant ground motion with only minor damage, there is a likelihood of severe damage or complete collapse during the aftershocks. Due to the importance of such seismic sequences in structural engineering investigations, in this study, the vulnerability of Reinforced Concrete...
Article
The effect of mainshock-aftershock (MS-AS) sequences on seismic performance of ordinary reinforced concrete (RC) moment frames (ORCFs) is studied by considering various levels of mainshock damage represented by maximum inter-story drift (MID) parameter. Incremental dynamic analysis (IDA) is performed to extract collapse capacity of structures under...
Article
In this article, the discrete wavelet transform (DWT) has been used to construct the wavelet response spectrum analysis (WRSA) of structures in the linear elastic zone. For this purpose, the elastic response spectra of different single degree of freedom (SDOF) systems are studied for different beam-to-column stiffness ratios. Initially, using the D...
Article
The effects of high-strength steel (HSS) on the damage indices (DIs) of four special moment frames and three beam– column connection (BCC) specimens under cyclical loading were experimentally studied. The specimens with HSS rebars (with yield strengths of 500 MPa and 580 MPa) were designed and constructed based on the special seismic provisions of...
Article
Full-text available
The bond strength among the concrete and reinforced bars is one of the most important factors in designing the reinforced concrete structures. One of the serious problems encountered by utilization of steel‐reinforcement bars is corrosion when exposed to different environments. Glass fiber‐reinforced polymers (GFRPs) are known as a solution to prev...
Preprint
Full-text available
Shear walls are the type of structural systems that provide the lateral resistance to a building or structure. Lateral loads are applied on one plate and along the vertical dimension of the wall. These type of loads are usually transmitted to the wall collectors. Concrete shear walls have a considerable resistance to lateral seismic loading. Model...
Article
In this article, the effect of mainshock-aftershock sequences on the seismic performance of ordinary reinforced concrete frames (ORCFs) retrofitted by fiber reinforced polymers (FRPs) is studied. Various mainshock damage levels are used to precede aftershocks that are incrementally scaled to drive the studied structures into the collapse state. The...
Article
Fi­bre Re­in­forced Poly­mer (FRP) bars have great po­ten­tial for the strength­en­ing of the ex­ist­ing build­ings. They also can be used as a suit­able re­place­ment for steel bars. There­fore, the struc­tural be­hav­ior and pre­dict­ing the strength of the con­structed el­e­ments by this type of ma­te­r­ial is an im­por­tant is­sue. How­ever, th...
Article
Full-text available
Computational intelligence (CI) is a powerful approach to determine the response values of complex systems. Despite their benefits, the way to reach the solution in these approaches is difficult and cannot be expressed in a clear and simple formulation. In recent years, some methods have been proposed to provide simple and efficient mathematical fo...
Article
Full-text available
In this article, three bio-inspired predictive models are proposed with the aim of estimating the shear capacity of reinforced concrete (RC) beams having steel stirrups. For this purpose, 194 experimental tests of this type of RC beams were gathered from the literature. Then, the structures of the artificial neural network models are trained and va...
Article
Full-text available
Seismic isolation systems, especially friction pendulum bearings (FPBs), are used as ideal seismic protection strategies in performance-based design. Furthermore, FPBs can increase the functionality of buildings by minimizing interruption of use of the facility (e.g., operational performance level) and reducing seismic demands on the structural and...
Article
Bridges are the indispensable arterial transport of a country. Iran, as a vast country, needs to develop a variety of road transportation inside and outside cities. Accelerating construction procedures and controlling costs are project management requirements. Risks, in many cases, disrupt the progress of the projects and impose costs on the projec...
Article
Full-text available
In this study, a new computational approach for determination of the bond strength of Fibre Reinforced Polymer (FRP) strip-to-concrete joints is presented based on Adaptive Neuro-Fuzzy Inference System (ANFIS). For this purpose, 150 experimental data were gathered from the literature. The number of 120 data were used to train the system, and the ot...
Conference Paper
Full-text available
Although using high-strength reinforcements (HSRs) have economical and execution benefits, their possible negative effects on the performance of structures such as ductility, energy dissipation, and damage process caused them to be restricted by building codes in seismic areas. In this research, the HSR effects on the cyclic behavior, cracking proc...
Cover Page
Full-text available
Submission Information: Submit manuscripts: https://www.editorialmanager.com/jrnsceng Authors are encouraged to prepare their manuscripts in accordance with guidelines in “Publishing in ASCE Journals: A Guide for Authors” (https://ascelibrary.org/r/publishingguide). Please note that all accepted papers submitted in response to this Call for Papers...
Article
In this paper, a reliability and sensitivity analysis has been carried out based on a large experimental database having different samples. The samples used for the study include a control beam, and three main shear strengthened beams having full wrap of the cross-section (W), U jacketing along three sides (U), and side bonding (S). The effect of s...
Article
Full-text available
Earthquake-induced structural pounding may cause major damages to structures, and therefore it should be prevented. This study is focused on using an artificial neural network (ANN) method to determine the sufficient seismic gap in order to avoid collisions between two adjacent buildings during seismic excitations. Six lumped mass models of structu...
Data
Benchmark RC frames, as a supplementary file of the following article, are provided in this Data file. "A novel definition of damage states for structural elements in framed reinforced concrete buildings"
Article
In this article, damage states for Reinforced Concrete (RC) elements of framed RC buildings, including beams, columns, and joints, were presented and defined. For this purpose, the benchmark RC structures were considered, and details of their members were extracted. Each of the elements was separately modeled, and a pushover load was applied until...
Article
In complex engineering problems, there are some inexact conceptions or a lot of parameters which must be considered. Soft computing is an approach that successfully applied to solve such problems. Determination of fuzzy rules for many problems has not been quite possible by an expert human. In this case, a neuro-fuzzy system which is the combinatio...
Article
In studies on structural members and their analysis, the verification has a special placement. To ensure the accuracy of the results of any analysis, the assurance of the correctness of the modeling is required. In the nonlinear analysis, this problem has more difficulties and the researcher spend a lot of time to considering different modeling ele...
Article
Population growth and increased demand for construction have reduced and destroyed the available natural resources. In the meantime, the destruction and demolish of older buildings have led to increasing construction waste. Therefore, the use of recycled materials may help to improve the quality of life and prevent further environmental damages. Ec...
Article
Full-text available
This paper presents a predictive model based on adaptive neuro-fuzzy inference system namely ANFIS to determine the moment capacity of spiral-reinforced concrete columns. For this purpose, five input parameters including the longitudinal reinforcement index, transverse reinforcement index, axial force, diameter to length ratio and also shear force...
Article
This article presents a new technique for enhancing the shear capacity of RC beams with FRP materials, which instead of bonding of FRP strips on the external face of element, involves perforating holes along the beam web, inserting FRP reinforcement inside these holes, and filling the holes with grout. Although according to technical literature, ex...
Conference Paper
Full-text available
در پژوهش حاضر به بررسی اثر میدان مغناطیسی بر روی مقاومت فشاری بتن حاوی الیاف فلزی در سه حالت بدون مغناطیس، پیش مغناطیس (حالت خمیری) و پس مغناطیس (حالت سخت شده) می‌باشد. الیاف مورد استفاده از جنس فولاد بوده و در میزان صفر، 0/5 و 1 درصد حجم بتن مورد استفاده قرار گرفته است. نمونه ی مورد استفاده به شکل استوانه به قطر 100 میلی‌متر و ارتفاع 200 میلی‌متر...
Article
Full-text available
In this paper, the feed-forward backpropagation neural network (FFBPNN) is used to propose a new formulation for predicting the compressive strength of fiber-reinforced polymer (FRP)-confined concrete cylinders. A set of experimental data has been considered in the analysis. The data include information about the dimensions of the concrete cylinder...
Article
Full-text available
A considerable number of existing reinforced concrete (RC) structures need to seismic rehabilitation due to several reasons such as being designed just based on gravity loading and/or having an unsatisfactory level of ductility. One of the types of steel bracing can be referred to eccentrically braced frames with a vertical link. This system has so...
Article
The aim of the present study is to propose innovative predictive models for shear capacity of reinforced concrete (RC) exterior joints in terms of multiple soft computing techniques. Existing models were evaluated and by a preliminary sensitivity analysis, seven parameters including compressive strength of concrete, product of the yield stress and...
Article
Full-text available
One of the possibilities to prevent building pounding between two adjacent structures is to consider appropriate in-between separation distance. Another approach might be focused on controlling the relative displacements during seismic excitations. Although the majority of building codes around the world recommend the use of some equations of vario...
Article
Since the societies are continuously exposed to a range of natural disasters such as earthquakes, several precautions must be taken before and after an earthquake to reduce the damages. In this regard, seismic resilience evaluation is considered to be one of the practical actions. Resilience, as a function, indicates the capacity to maintain the le...
Article
This article proposes an approach to determine the confinement coefficient of concrete columns with square and rectangular cross sections wrapped with all types of fiber-reinforced polymer (FRP) based on soft computing. Five inputs, including the length or longer side of the column, radius of the corner, elastic modulus of FRP, total thickness of F...