Smart Prefabricated Structures

Precast Decks

Precast deck

Precast members
– Prestressed precast slab for composite bridges
– Prestressed precast slab for PSC girder bridges
– Steel-embedded modular slab
– Pretensioned Half-deck
– Durability Issues : Corroded tendons

Precast Columns

Precast Substructures

– Prestressed precast bridge piers
– Modular composite piers
– Modular pier cap
– Precast footing
– Connection of pile to pier

Aesthetic Design of Precast Members

3D design

– 3D parametric design
– 3D formwork using 3D printers
– Formliner design

Smart fabrication of Prefab Members

Aesthetic design is realized by 3D concrete printing and robotic machining. Match casting process can be removed in the fabrication procedure.

Related research projects & publications

Research Project
  • 2024~2026 철도 상하부 구조를 위한 디지털 트윈 개념 모델 개발
  • 2017~2021 중소노후교량 실증기반 성능 및 보수보강 평가 연구 (Future performance prediction)
  • 2017~2020 내부순환도로 PSC 박스거더교 긴장재 정밀조사 및 모니터링 (Tendon corrosion in PSC box girder bridge)
  • 2016 PSC 박스거더교 긴장재 유지관리 방안 수립
  • 2015 SegArch 크라운부 연결부에 대한 성능평가
  • 2014 철도 프리캐스트 콘크리트 직결궤도 모듈러 교량 구조해석 및 설계
  • 2013~2018 설계 및 시공최적화를 위한 지능형 교각 급속시공기술 개발
  • 2013 뉴하프텍의 구조성능 검증 및 3차원 모델구축
  • 2012. Decked Bulb Tee 거더 연결부 및 연속화 구조성능 평가
  • 2010. 모듈러 교각 기둥-코핑 연결부 개발
  • 2009. 프리캐스트 조립식 교각의 설계 및 시공법 개발
  • 2007. 프리캐스트 조립식교각 실용화 연구
  • 2005. Prefab 교각 특화기술개발
  • 2004. 사회기반 시설물의 성능평가 통합시스템 구축
  • 2004. PC거더 교량 연속화 공법 개발
  • 2003. Development of Composite Action between Precast Decks and PC-Beams
  • 2002. Development of Design Techniques for Precast Deck System of Short Span Bridges

Related research projects & publications

Journal papers
  • 2024. Development of a Baseline Digital Twin Model as a Prerequisite for the Digital Twin Definition of a PSC-I Bridge with Model Updating Considering Member Stiffness. Buildings 2025, 15, 17. https://doi.org/10.3390/buildings15010017
  • 2023. An Experimental Study on the Deterioration Behaviour of External Tendons Due to Corrosion, KSCE J. of Civil Engineering, https://doi.org/10.1007/s12205-023-0316-5
  • 2023. Bayesian inference of pit corrosion in prestressing strands using Markov Chain Monte Carlo method, Probabilistic Engineering Mechanics, https://doi.org/10.1016/j.probengmech.2023.103512
  • 2023. Test database for corroded prestressing steel strands recovered from aged bridges, Journal of Materials in Civil Engineering, ASCE, 35(2):05022003. https://doi.org/10.1061/(ASCE)MT.1943-5533.0004557
  • 2021. The effect of wire rupture on flexural behavior of 45-year-old post-tensioned concrete bridge girders. Engineering Structures 245 (2021) 112842, https://doi.org/10.1016/j.engstruct.2021.112842
  • 2021. A multi-scale framework for probabilistic structural analysis of PSC girders considering pit corrosion of prestressing wires. Engineering Structures 244 (2021) 112745 https://doi.org/10.1016/j.engstruct.2021.112745
  • 2020. Probabilistic prediction of mechanical characteristics of corroded strands. Engineering Structures, 203 (2020) https://doi.org/10.1016/j.engstruct.2019.109882
  • 2020. Assessment of mechanical properties of corroded prestressing strands, Applied Sciences, 10, 4055; https://doi.org/10.3390/app10124055
  • 2020. Crack width control of precast deck loop joints for continuous steel-concrete composite girder bridges, Advances in Concrete Construction, Vol. 10, No. 1 (2020) 21-34. DOI: https://doi.org/10.12989/acc.2020.10.1.021
  • 2020. Quantitative Definition of Seismic Performance Levels for Precast Bridge Piers with Continuous Reinforcement, Advances in Civil Engineering, Volume 2020, Article ID 4087532. https://doi.org/10.1155/2020/4087532
  • 2018, Seismic performance of repaired severely damaged precast columns with high-fiber reinforced cementitious composites, KSCE journal of civil engineering, 22(2): 736-746, http://DOI.org/10.1007/s12205-017-1414-z
  • 2017. Experiments on prefabricated segmental bridge piers with continuous longitudinal reinforcing bars, Engineering Structures, 132: 671-683. http://doi.org/10.1016/j.engstruct.2016.11.070
  • Seismic performance of prefabricated bridge columns with combination of continuous mild reinforcements and partially unbonded tendons, Smart Structures and Systems, 17(4), 2016: 541-557.vol. 33, 2011, September, pp.2525-2534. http://dx.doi.org/10.1016/j.engstruct.2011.04.024
  • 2010. “SHEAR CONNECTIONS IN PRESTRESSED BEAMS WITH PRECAST SLABS”, Structures and Buildings, Vol. 163, Issue 5, 2010. 10., pp. 317-330.DOI: 10.1680/stbu.2010.163.5.317
  • 2010. “Development and Application of Precast Decks for Composite Bridges”, Structural Engineering International, Vol.20, No.2, May, 2010, pp.126-133. DOI: http://dx.doi.org/10.2749/101686610791283623
  • 2008. “Experimental evaluation of seismic performance of precast segmental bridge piers with a circular solid section”, Engineering Structures, 30 (12), 2008.12, pp. 3782-3792. http://dx.doi.org/10.1016/j.engstruct.2008.07.005
  • 2004. “Testing a composite box-girder bridge with precast decks”, Structures & Buildings, ICE, Vol.157, Issue 4, October 2004, pp.243-250. DOI: 10.1680/stbu.2004.157.4.243
  • 2004. “Inelastic Behaviour of Externally Prestressed Continuous Composite Box-Girder Bridge with Prefabricated Slabs”, Journal of Constructional Steel Research, Vol.60, Issue 7, pp.989-1005. DOI: 10.1016/j.jcsr.2003.09.004
  • 2003. “Cracking of Continuous Composite Beams with Precast Decks,” Journal of Constructional Steel Research, Vol.59, Feb. 2003, pp.201-214..http://dx.doi.org/10.1016/S0143-974X(02)00032-9
  • 2002. “The Effect of Bedding Layer on the Strength of Shear Connection in Full-Depth Precast Deck,” Engineering Journal, AISC, 2002, 3rd Quarter, pp127-135.
  • 2001. “Continuous Composite Bridges with Precast Decks,” International Journal of Steel Structures, Vol. 1, No. 2, Sep. 2001, pp.123-132.
  • 2001. “Design of Shear Connection in Composite Steel and Concrete Bridges with Precast Decks, ” Journal of Constructional Steel Research, 57(2001) pp. 203-219.
  • 2000. “The Behavior of Shear Connection in Composite Beam with Full-Depth Precast Slab,” Structures and Buildings, The Institution of Civil Engineers, Jan., Vol.140, pp.101-110.
Patents 

1. 프리캐스트 콘크리트 부재간 채움재의 직접인장 부착강도 시험방법 및 인장력 전달장치

2. 프리캐스트 콘크리트 교량바닥판과 주형간 이음부의 결합방법

3. 파형 중공관을 이용한 중공 교각 구조물 및 그 시공방법
(Hollow type pier structure using corrugated steel pipe and construction method thereof)

4. 프리캐스트 콘크리트 거푸집을 이용한 교각 구조물 및 그 시공방법
(Pier Structure having Precast Concrete Form and Constructing Method thereof)

5. 프리캐스트 패널을 갖는 이중합성 철도 판형교
{Double composite plate girder railway bridge with precast concrete panels}

6. 프리캐스트 패널을 갖는 이중합성 철도 판형교 시공방법
{Construction method of double composite plate girder railway bridge with precast concrete panels}

7. 조립식 프리캐스트 합성교각 구조물 및 그 시공방법
(Precast column structure and constructing method thereof)

8. 강관으로 전단을 보강한 조립식 콘크리트 교각 구조 및 그 시공방법
(Structures and Construction Method of Prefabricated Concrete Pier Strengthened in Shear by Steel Pipe)

9. 프리캐스트 바닥판과 프리스트레스트 콘크리트 거더와의연결구조 및 그 연결시공방법
(Structures and Methods for Connection between PrecastDecks and Prestressed Concrete Girders)

10. 레일링 시스템을 이용한 프리캐스트 바닥판과 거더의 설치구조
(Installation Structure of Precast Deck and Girder Using Railing System)

11. 매입강관을 이용한 수화열 제어를 수반한 교각 구조물의 시공방법
(construction method of hollow type pier structure with controlling curing heat of mass concrete)

12. 프리캐스트 기초 및 말뚝과 프리캐스트 기초의 연결구조

13. 프리캐스트 교각과 기초의 연결구조 및 연결시공방법

14. 콘크리트 충진 복합단면 교각 및 복합단면 교각과 기초의 연결구조