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비긴장강연선과 철근이 혼용된 보의 설계방안 KCI 등재

Design Concept of Beams Reinforced by Deformed Bars and Non-Prestressed Strands in Combination

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한국구조물진단유지관리공학회 논문집 (Journal of The Korea Institute for Structural Maintenance and Inspection)
한국구조물진단유지관리공학회 (The Korea Institute For Structural Maintenance and Inspection)
초록

A new precast concrete (PC) beam and column connection system using non-prestressed wire strands was recently developed. The system is composed of one unit of two-storied PC-column and PC-beams with U-shaped ends. The connection part of the column and beams is reinforced by deformed bars and non-prestressed wire strands in combination for the improvement of workability. Structural performance of this system was verified by several experimental studies. The purpose of this study is developing a design concept of the beam reinforced by deformed bars and non-prestressed wire strands in combination, in terms of the cross-sectional analysis, based on the preceded experiment. A minimum and maximum reinforcement ratio and the calculation formula for the strength of flexural member reinforced by reinforcements having different yield strengths are derived based on KBC2009. Under consideration existing research results for the application of high strength reinforcement bars, the design yield strength of the non-prestressed wire strand is suggested. An example for the cross section design, satisfying the serviceability requirements, demonstrates the applicability of the design concept developed in the study.

저자
  • 노삼영(정회원, 한양대학교 건축학부 부교수) | Sam-Young Noh
  • 조민주(정회원, ㈜와이즈구조연구소 대표이사) | Min-Joo Jo
  • 김종성(정회원, 한양대학교 건축공학과 석사과정) | Jong-Sung Kim
  • 김승훈(정회원, 한밭대학교 건축공학과 부교수) | Seung-Hun Kim 교신저자