H001　Symposium
H002　International Cooperation
H003　Election Administration
H004　Nomination and Selection for Society Awards
H005　JSCE Journal Special Edition Editorial Board
H006　Continuing Education on Hybrid Structures
H007　The 300 Years Project
H008　Anniversary Ceremony Planning

H100　Guidelines for Performance-Based Design of Steel-Concrete Hybrid Structures (2005-2008)
H101　Revision of Standard Specifications for Hybrid Structures (2011.9- )
H102　FRP footbridge design guidelines (2009.7-2011.3)
H103　Text book on basic theory and of Design of Hybrid Structures (2009.9-2011.9)
H104　Research on the Damage of from Tohoku-Pacific Ocean Earthquake (2011.10-2012.12)
H105　The 300 years project (2012.7-2013)
H106　Preparation of Guidelines for FRP Repair and reinforcement (2016.1-2018.5)
H107　Research on Integration of Green Infrastructure and Gray Infrastructure (2018.6-2020.5 )
H108　The 300 Years Project (2021.6-2022.4 )
H109　Research on the Development of Hybrid Structure Technology (2023.3-2025.12)
H110　Research and Investigation for Establishing Management Systems for Social Infrastructure toward Society 5.0 (2023.6-2024.4 )
H111　Research on the Future of Hybrid Structures toward Carbon Neutrality (2023.6-2024.4 )
H150　Research on Evaluation Methods for Performance Verification of Various Shear Connectors (2015.6-2017.5 )
H151　Research and Investigation on Fatigue Verification Methods for Hybrid Structures (2018.2-2020.3 )
H152　Research and Investigation on Effective Utilization of Prefabricated and Precast Construction Methods (2019.5-2020.7 )
H180　Technical guidelines for FRP hydraulic gates (2012.12-2014)
H181　Preparation of Design and Construction Guidelines for Steel-Concrete Composite Deck Slabs (2014.4-2015.11 )

H201　Research on the Current Situation of Hybrid Structures (2005.10-2008.9 )
H202　Hybrid technique using new materials (2005.8-2007.8 )
H203　Maintenance (2005.12-2009.4 )
H204　FRP hybrid bridge (2006.10-2009.9)
H205　Repair and Strengthening of Steel and Hybrid Structures using FRP Composites (2006.10-2010.3 )
H206　Performance assessment of shear connecters for hybrid structures (2009.10-2014 )
H207　Hybrid technique using resin materials (2009.10-2012.12 )
H208　FRP hybrid structures (2010.6-2014.11 )
H209　FRP retrofit design of concrete structures (2010.6-2014 )
H210　Waterproofing and draining methods for hybrid structures (2011.1-2013 )
H211　Bonded joints between FRP to steel members (2011.1-2013 )
H212　Load-carrying mechanism in hybrid structures (2012.12-2017 )
H213　Research on Renewal and Reconstruction Technology for Structures (2014.12-2017.2 )
H214　Research and Investigation on Waterproofing and Drainage for Hybrid Structures Considering Maintenance Management (2015.8-2019.4)
H215　Research on the Effects of Concrete Shrinkage and Creep in Hybrid Structures (2016.7-2018.6 )
H216　Research on Structural Inspection and Performance Evaluation of Hybrid Structures (2016.6-2018.6 )
H217　Research and Investigation on Application of Concrete-Filled Steel Tubular Members (2017.5-2020.10 )
H218　Research and Investigation on Design and Maintenance Management of FRP Hybrid Structures (2017.7-2023.3 )
H219　Research on Design and Construction Technology for Existing Composite Girder Bridges in Deck Replacement (2018.8-2021.7 )
H220　Research on Evaluation of Green-Gray Hybrid Infrastructure (2020.6-2024.12 )
H221　Research on Composite Technology Using Resin and FRP Materials (2023.1-2025.5 )
H222　Research toward Utilization of Prefabricated and Precast Construction Methods in Hybrid Structures (2023.8- )
H223　Research and Investigation on Design of Elastic Composite Girders (2024.12- )