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題 名 | 受鋼線網圍束鋼筋混凝土柱受偏心軸力作用之行為=Behavior of Reinforced Concrete Columns Confined by Welded Wire Fabric Under Eccentric Axial Loading |
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作 者 | 林建宏; 林士平; | 書刊名 | 中國土木水利工程學刊 |
卷 期 | 11:3 1999.09[民88.09] |
頁 次 | 頁503-509 |
分類號 | 441.557 |
關鍵詞 | 鋼線網; 鋼筋混凝土; 柱; Column; Reinforced concrete; Welded wire fabric; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究針對鋼線網圍束鋼筋混凝土柱受偏心軸力之結構行為進行試驗研究,研究 結果發現:(1)縱向筋面積比愈高之試體,具有較大之極限載重及彎矩強度,但延展性較 差;(2)橫向筋體積比愈高、縮短鋼線網橫向間距或縮短箍筋間距之試體,能提供較大圍 束效果,延展性較佳。其中鋼線網之圍束效應較傳統箍筋佳;(3)鋼線網放置於箍筋與主 筋間或放置於箍筋外,均能發揮其圍束效應;(4)有保護層試體比無保護層試體有較高極 限載重;(5)偏心距離愈小,具有較大勁度及極限載重,但延展性較差;(6)依據ACI規 範計算所得之標稱強度,與試驗結果比較趨於保守。 |
英文摘要 | The purpose of this study is to investigate the behavior of concrete columns confined by welded wire fabric (WWF) under eccentrical axial loadings. The main variables considered include the amount of longitudinal reinforcement, amount of transverse reinforcement, spacing of ties, spacing of transverse wires, types of cross section, and eccentricity of axial load. The results showed that increase of longitudinal steel will increase the axial loading capacity and flexural strength of the columns wit less ductility. Increase of transverse reinforcement will increase the ductility of the columns. The welded wire fabric provides better confinement effect than the conventional ties. Placement of WWF either in between the longitudinal steel and ties or outside the ties will have equal confinement effect. Columns will have larger capacity and stiffness but less ductility with larger eccentricity of axial load. The column strength derived based on ACI provisions is conservative compared to the experimental r esults. |
本系統中英文摘要資訊取自各篇刊載內容。