STUDY ON LIMIT AXIAL-LOAD RATIO OF PVC-FRP CONFINED REINFORCED CONCRETE COLUMN

Abstract

Abstract: The mechanical behavior is analyzed according to the stress-strain relationship of PVC-FRP confined reinforced concrete column. Based on the equilibrium condition of large and small eccentric limit compression, the basic assumptions for limit axial-load ratio of PVC-FRP confined reinforced concrete column are proposed, and then a calculating method of limit axial-load ratio is derived. It is shown that the limit axial-load ratio of PVC-FRP confined reinforced concrete column decreases with the increasing hoop spacing of CFRP strips. The limit axial-load ratio of PVC-FRP confined reinforced concrete column is greatly improved compared with that of reinforced concrete column.

Key words: PVC-FRP tube, axial-load ratio, concrete column, bearing capacity, confinement

CLC Number:

TB332

YU Feng, NIU Di-tao. STUDY ON LIMIT AXIAL-LOAD RATIO OF PVC-FRP CONFINED REINFORCED CONCRETE COLUMN[J]. Fiber Reinforced Plastics/Composites, 2018, 0(2): 5-7.

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