Jiuk Shin

Experience

• 

  Sejong University

  Mar 2008 - Aug 2011

  Research Assistant

  1) Experimental and analytical studies on a buckling-restrained knee bracing (BRKB) system:- Developed and tested a new type of the BRKB system with light-weight steel channel sections- Performed numerical simulations for a piloti-type RC building and steel frame building retrofitted with the BRKBs using ZeusNL to demonstrate the effectiveness of the retrofit system- Developed an optimum BRKB using a probability-based decision making procedure (fragility contour) for the seismic retrofit scheme satisfied with a code-defied target performance level.2) Seismic assessment of a damaged piloti-type RC building with buckling-restrained braces (BRBs) under successive earthquakes (main shock-aftershock sequences):- Proposed a framework to demonstrate the effectiveness of the retrofit system for the damaged RC building structure subjected to successive earthquake records- Investigated more realistic behavior of damaged RC buildings with and without the retrofit system under real successive earthquake records- Generated probability-based fragility curves of the damaged RC buildings to quantify the effectiveness of the BRBs depending on main-shock induced damage levels. Show less

• 

  Korea Institute of Civil Engineering and Building Technology

  Sept 2011 - May 2013

  Researcher

  1) Development of rehabilitation technologies for existing buildings:- Assisted supervisors with application of developed toggle brace damping devices to real buildings- Monitored the dynamic characteristics of the real buildings before and after the seismic retrofit2) Development of advanced insulated concrete wall panel systems:- Designed and performed full-scale tests of the insulated concrete wall panel systems- Evaluated serviceability of the insulated concrete wall panel systems under wind loads.3) Experimental and numerical studies of anchorage system with steel plate for concrete wall panels:- Designed and performed an experimental program of the anchorage system to identify the effects of the anchor plate on concrete breakout capacities- Proposed and verified simplified numerical model for the anchorage system Show less

• 

  Georgia Institute of Technology

  Aug 2013 - Jul 2017

  Graduate Research Assistant

  1) Full-scale dynamic testing of a non-ductile reinforced concrete frame retrofitted with a pre-cured FRP jacketing system:- Designed and installed the pre-cured FRP jacketing system on the first story columns in a two-story, two-bay non-ductile RC test frame.- Performed a series of full-scale dynamic testing for a two-story, two-bay non-ductile RC frame retrofitted with the FRP column jacketing system.- Measured dynamic responses of the full-scale test frame and quantified the effectiveness of the retrofit systems by comparing between the non-retrofitted and retrofitted dynamic responses.2) Development and verification of finite element models under seismic and blast loads using LS-DYNA:- Identified bond-slip effects between reinforcing bars and surrounding concrete by full-scale dynamic testing of non-ductile RC frames with and without an FRP column jacketing system.- Implemented the bond-slip effects to the finite element models.- Developed reliable datasets for seismic and blast loads using the well-verified finite element models.3) Derivation of multi-hazard performance criteria using fast running model (FRM) tools:- Trained, validated and tested FRMs for seismic and blast loading using artificial neural networks.- Generated large datasets with all possible inputs for seismic and blast loading using the FRM tools.- Derived multi-hazard performance criteria with energy-based damage corresponding to current code-defined performance limits.- Proposed rapid decision making procedures of structural retrofit for multi-hazard loading. Show less

• 

  Korea Institute of Civil Engineering and Building Technology

  Mar 2018 - now

  Senior Researcher