高強度鋼纖維鋼筋混凝土柱軸壓與韌性行為之研究

Study of Compression and Toughness Behavior of High Strength Steel Fiber Reinforced Concrete Columns

劉恩睿(En-Jui Liu) ； 曾笠維(Li-Wei Tseng) ； 廖文正(Wen-Cheng Liao)

《中國土木水利工程學刊》 26卷3期 (2014/09) Pp. 223-227

https://doi.org/10.6652/JoCICHE.201409_26(3).0006

摘要

本研究主要探討高強度鋼纖維鋼筋混凝土柱的軸壓行為與圍束效應，以不同之箍筋間距加入不同比例之鋼纖維來觀察箍筋與鋼纖維對試體韌性及圍束之影響，進而了解並量化兩材料間的圍束效益差異。本研究考量鋼纖維與漿體間的握裹強度，建立鋼筋混凝土柱和鋼纖維鋼筋混凝土柱的韌性比回歸公式，以利於工程界與學術界分析與應用。

關鍵字

端鉤型鋼纖維 ； 鋼纖維鋼筋混凝土柱 ； 軸壓 ； 圍束

並列摘要

Compression behavior and confinement effect of high strength steel fiber reinforced concrete columns are discussed in this study. By changing transverse reinforcement spacing and steel fiber volume fraction, the confinement efficiency provided by stirrups and fibers can be further investigated. The toughness ratio regression formula for steel fiber reinforced concrete columns is also proposed and verified by the experimental results. The empirical equation proposed in this study shows good agreement with the test results and could be applied for estimation of fiber dosage to substitute for transverse reinforcement.

並列關鍵字

steel fiber ； steel fiber reinforced concrete columns ； compression ； confinement