Post‐earthquake stiffness loss estimation for reinforced concrete columns using fractal analysis of crack patterns

M Hamidia, M Afzali, S Jamshidian… - Structural Concrete, 2023 - Wiley Online Library
The seismic damage to reinforced concrete (RC) components is conventionally quantified
through various damage indices. In this paper, an image‐based procedure is developed for …

Computer vision-based automated stiffness loss estimation for seismically damaged non-ductile reinforced concrete moment frames

M Hamidia, A Ganjizadeh - Bulletin of Earthquake Engineering, 2022 - Springer
A novel automated image processing-based methodology is proposed for quantification of
stiffness degradation in non-ductile reinforced concrete moment frames after a seismic …

Computer vision-based quantification of updated stiffness for damaged RC columns after earthquake

M Hamidia, M Sheikhi, AH Asjodi… - Advances in Engineering …, 2024 - Elsevier
Concrete surface cracks are one of the primary indicators of structural deterioration; thus,
crack analysis is crucial to maintain the intact serviceability of the structural components …

Residual strength and stiffness estimation for RC columns damaged in earthquake through surface crack texture analysis

M Afzali, S Jamshidian, M Hamidia, M Safi - Soil Dynamics and Earthquake …, 2024 - Elsevier
A novel non-destructive non-contact methodology based on surface crack image processing
is developed in this paper for residual strength and stiffness estimation of seismically …

The Performance Investigation of Deformation and Energy Parameters in Seismic Damage Assessment of Steel Structures

A Sadeghi, SV Hashemi, K Mehdizadeh - New Approaches in Civil …, 2020 - jnace.ir
The seismic behavior assessment of structures is carried out to estimate the damages
caused by the earthquake. In recent years, with the advances of earthquake engineering …

[PDF][PDF] Comparison of Seismic Performance of Structural Systems Moment Frame, Concentric Braced Frame and Buckling Restrained Braced Frame Using Damage …

A Sadeghi, M Pouraminian, SV Hashemi… - New Approaches in Civil …, 2021 - jnace.ir
When a structure is exposed to an earthquake, depending on the severity of the earthquake,
it may be completely destroyed or remain completely intact, or some of its members may …

Investigation the Performance of Irregular Steel Moment-Resisting Frame Structure under the Progressive Collapse Using nonlinear Static and Dynamic Methods

K Mehdizadeh, M Afraei, A Sadeghi… - New Approaches in Civil …, 2020 - jnace.ir
This study investigates the magnitude of damage index in irregular structure under the
impact of progressive collapse base on measuring values of damage index with considering …

Assessing the Effect of Deformation and Energy Damage Indices in Seismic Vulnerability of Steel Moment-Resisting Frames

K Mehdizadeh, A Sadeghi, SV Hashemi… - Advance Researches in …, 2022 - arce.ir
In evaluating the degree of structural damages after a destructive event like an earthquake,
the assessment of damages in different points of the structure is very important. Thus, it …

Investigating the Seismic Performance of Steel Moment-Resisting Frames by Using Damage Index

K Mehdizadeh, F Jadali, S Heidari, A Sadeghi… - Advance Researches in …, 2022 - arce.ir
In the seismic analysis of structures, estimation of amount of damages to the elements is of
great importance. In the quantitative method of estimating damages, it is possible to assess …

مقایسه ی عملکرد لرزه ای سیستم های سازه ای قاب خمشی، مهاربندی همگرا و کمانش تاب با استفاده از شاخص خسارت

صادقی, پورامینیان, هاشمی, ُسیده وحیده… - رویکردهای نوین در مهندسی …, 2021‎ - jnace.ir
وقتی سازهای در معرض زلزله قرار میگیرد بسته به شدت زلزله ممکن است به کل تخریب شود یا
کاملا سالم باقی بماند و یا برخی از اعضای آن از حالت پایداری خود خارج شود و در هر صورت ممکن است …