CSIL

Department of Architectural Engineering

Computational
Structural Intelligence
Laboratory

We develop computational methods and AI-driven frameworks to advance the analysis, design, and resilience of complex structural systems.

Research Topics

02

Data-Driven Structural Analysis

Machine learning, surrogate modeling, and data-driven approaches for efficient prediction and simulation of nonlinear structural behavior.

03

Optimization

Structural design optimization and AI-assisted computational methods for resilient, efficient, and high-performance structural systems.

04

Seismic Performance Assessment

Performance-based earthquake engineering, probabilistic seismic risk assessment, and collapse evaluation of structural systems under extreme loading conditions.

06

Smart Material Models

Development of computational constitutive and hysteretic models for smart, adaptive, and nonlinear structural materials subjected to complex loading conditions.

People

CS

Prof. Chang Seok Lee

Publications

2025

Optimum hysteretic model selection for reinforced concrete columns subjected to rebar buckling

Lee CS, Choi E, Jeon J^*

Structures, 80:110075

DOI: 10.1016/j.istruc.2025.110075

Journal

2025

Effect of soil profile-related parameters on seismic performance of ductile reinforced concrete building frames in California

Kim M, Lee CS^*, Kim B, Jeon J^*

Soil Dynamics and Earthquake Engineering, 190:109118

DOI: 10.1016/j.soildyn.2024.109118

Journal

2024

Machine learning-based residual drift prediction of concrete-filled steel tube columns under earthquake loads

Shturmin S, Lee CS, Choi E, Jeon J^*

Journal of Building Engineering, 97:110903

DOI: 10.1016/j.jobe.2024.110903

Journal

2024

Hysteretic model parameters for seismic performance assessment of cyclically degraded reinforced concrete columns

Park Y, Lee CS^*, Jeon J

Soil Dynamics and Earthquake Engineering, 179:108519

DOI: 10.1016/j.soildyn.2024.108519

Journal

2024

Machine learning–assisted drift capacity prediction models for reinforced concrete columns with shape memory alloy bars

Lee CS, Mangalathu S, Jeon J^*

Computer-Aided Civil and Infrastructure Engineering, 39(4):595–616

DOI: 10.1111/mice.13112

Journal

2023

Lumped plasticity model for simulating the inelastic earthquake response of CFT columns

Shturmin S, Lee CS, Jeon J^*

Journal of Constructional Steel Research, 211:108196

DOI: 10.1016/j.jcsr.2023.108196

Journal

2023

Seismic risk-based optimization of tension-only shape-memory alloy device for steel moment-resisting frames

Lee CS, Jeon J^*

Engineering Structures, 296:116976

DOI: 10.1016/j.engstruct.2023.116976

Journal

2023

Risk-based seismic design of diagonal self-centering shape-memory alloy wire-based bracing system in multi-column bent bridges

Lee CS, Jeon J^*

Engineering Structures, 289:116295

DOI: 10.1016/j.engstruct.2023.116295

Journal

2022

Probabilistic residual deformation prediction model for rectangular reinforced concrete columns

Lee CS, Jeon J^*

Earthquake Engineering & Structural Dynamics, 51(9):1994–2015

DOI: 10.1002/eqe.3650

Journal

2022

Phenomenological hysteretic model for superelastic NiTi shape memory alloys accounting for functional degradation

Lee CS, Jeon J^*

Earthquake Engineering & Structural Dynamics, 51(2):277–309

DOI: 10.1002/eqe.3566

Journal

2022

Drift limit state predictions of rectangular reinforced concrete columns with superelastic shape memory alloy rebars

Lee CS, Jeon J^*

Journal of Building Engineering, 54:104546

DOI: 10.1016/j.jobe.2022.104546

Journal

2022

Estimating the plastic hinge length of rectangular concrete columns reinforced with NiTi superelastic shape memory alloys

Lee CS, Choi E, Jeon J^*

Engineering Structures, 252:113641

DOI: 10.1016/j.engstruct.2021.113641

Journal

2021

Model parameter prediction of lumped plasticity model for nonlinear simulation of circular reinforced concrete columns

Lee CS, Park Y, Jeon J^*

Engineering Structures, 245:112820

DOI: 10.1016/j.engstruct.2021.112820

Journal

2021

Adaptive hysteretic model for reinforced concrete columns including variations in axial force and shear span length

Lee CS, Jeon J^*

Earthquake Engineering & Structural Dynamics, 50(15):4001–4031

DOI: 10.1002/eqe.3543

Journal

2021

An Accurate Numerical Model Simulating Hysteretic Behavior of Reinforced Concrete Columns Irrespective of Types of Loading Protocols

Lee CS, Han SW^*

International Journal of Concrete Structures and Materials, 15(1):5

DOI: 10.1186/s40069-020-00446-5

Journal

2021

Modeling parameters and acceptable plastic chord rotations for diagonally reinforced concrete coupling beams

Han SW^*, Lee CS, Cho ES

Journal of Building Engineering, 44:102650

DOI: 10.1016/j.jobe.2021.102650

Journal

2021

Model development and seismic performance evaluation of rectangular reinforced concrete columns with short lap splices in existing building frames

Alvi MH, Lee CS, Jeon J^*

Engineering Structures, 245:112922

DOI: 10.1016/j.engstruct.2021.112922

Journal

2020

Cyclic behavior of RC OMF beam-corner column joints under unidirectional and bidirectional loadings

Han SW^*, Lee CS

Engineering Structures, 224:111304

DOI: 10.1016/j.engstruct.2020.111304

Journal

2020

Cyclic behavior of lightly reinforced concrete moment frames with partial- and full-height masonry walls

Han SW, Lee CS^*

Earthquake Spectra, 36(2):599–628

DOI: 10.1177/8755293019899960

Journal

2020

Fragility functions of different groups of diagonally reinforced concrete coupling beams (DRCBs)

Han SW, Koh H, Lee CS^*

Bulletin of Earthquake Engineering, 18(1):165–187

DOI: 10.1007/s10518-019-00693-2

Journal

2019

Cyclic behaviour of lightly-reinforced concrete columns with short lap splices subjected to unidirectional and bidirectional loadings

Lee CS, Han SW^*

Engineering Structures, 189:373–384

DOI: 10.1016/j.engstruct.2019.03.108

Journal

2019

Accurate and Efficient Simulation of Cyclic Behavior of Diagonally Reinforced Concrete Coupling Beams

Han SW, Koh H, Lee CS^*

Earthquake Spectra, 35(1):361–381

DOI: 10.1193/060717EQS108M

Journal

2018

Computationally Efficient and Accurate Simulation of Cyclic Behavior for Rectangular HSS Braces

Lee CS, Sung MS, Han SW^*, Jee HW

International Journal of Steel Structures, 18(4):1125–1138

DOI: 10.1007/s13296-018-0071-5

Journal

2018

Computationally effective and accurate simulation of cyclic behaviour of old reinforced concrete columns

Lee CS, Han SW^*

Engineering Structures, 173:892–907

DOI: 10.1016/j.engstruct.2018.07.020

Journal