せん断破壊性状が卓越する PRC 杭の強度と変形性能 : 長期軸力作用下における場合

概要

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This paper presents the results of the experimental tests completed to investigate the strength and the deformation capacity of Prestressed Reinforced Concrete pile (i.e., partially prestressed concrete pile) with shear failure. Eight specimens were tested; four with shear span to depth ratio of 1.5 and four with shear span to depth ratio of 2.0. The hollow space of each pile was filled with normal-strength concrete. The specimens modeled as the pile head were subjected to reverse cyclic loading under sustained axial load. The conclusions of this study are : (1) the deformation capacities of PRC piles with the different parameters (amount of lateral reinforcement and shear span to depth ratio) can be evaluated using the shear strength to flexural strength ratios, (2) PRC piles with the shear strength to flexural strength ratios more than 1.05 have the ultimate deformation angles more than 0.034rad.
社団法人日本建築学会の論文
2002-09-30