Journal of the Korean Society for Advanced Composite Structures (복합신소재구조학회 논문집)

Korean Society for Advanced Composite Structures (한국복합신소재구조학회)
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Analysis on the Flexural Behavior of Existing Reinforced Concrete Frame Structures Infilled with L-Type Precast Wall Panel

L형 프리캐스트 콘크리트 벽패널로 채운 기존 철근 콘크리트 골조 구조물의 휨 거동 분석

  • Yu, Sung-Yong (Department of Architectural Engineering, Dongguk University) ;
  • Ju, Ho-Seong (Department of Architectural Engineering, Dongguk University) ;
  • Son, Guk-Won (Department of Architectural Engineering, Dongguk University)
  • Received : 2015.05.21
  • Accepted : 2015.06.10
  • Published : 2015.06.30
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Abstract

This study aims at developing a new seismic resistant method by using precast concrete wall panels for existing low-rise, reinforced concrete beam-column buildings such as school buildings. Three quasi-static hysteresis loading tests were performed on one unreinforced beam-column specimen and two reinforced specimens with U-type precast wall panels. Top shear connection of the PC panel was required to show the composite strength of RC column and PC wall panel. However, the strength of the connection did not influence directly on the ultimate loading capacities of the specimens in the positive loading because the loaded RC column push the side of PC wall panel and it moved horizontally before the shear connector receive the concentrated shear force in the positive loading process. Under the positive loading sequence(push loading), the reinforced concrete column and PC panel showed flexural strength which is larger than 97% of the composite section because of the rigid binding at the top of precast panel. Similar load-deformation relationship and ultimated horizontal load capacities were shown in the test of PR1-LA and PR1-LP specimens because they have same section dimension and detail at the flexural critical section. An average of 4.7 times increase in the positive maximum loading(average 967kN) and 2.7 times increase in the negative maximum loading(average 592.5kN) had resulted from the test of seismic resistant specimens with anchored and welded steel plate connections than that of unreinforced beam-column specimen. The maximum drift ratios were also shown between 1.0% and 1.4%.

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References

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Cited by

  1. Shear Tests on Subassemblies Representing the Multi-anchored Connection between PC Wall Panels and RC Frames vol.22, pp.12, 2018, https://doi.org/10.1007/s12205-017-1156-y
  2. Experimental Study on Existing Reinforced Concrete Frames Strengthened by L-type Precast Concrete Wall Panels to Earthquake-Proof Buildings vol.22, pp.9, 2018, https://doi.org/10.1007/s12205-018-1197-x