Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/13115
標題: 含高拉力剪力筋混凝土柱受低軸力作用下之動態行為-撓曲部份
Flexural Behavior of Reinforced Concrete Columns with High Strength Shear Reinforcement under Low Cyclic Axial Force
作者: 張銘鴻
Chang, Meng Hong
關鍵字: Concrete;混凝土;Columns;High Strength Shear Reinforcement;柱;高拉力剪力筋
出版社: 土木工程學系
摘要: 
本研究主要在探討含高拉力剪力筋柱試體同時受固定軸力及動態反覆
橫力作用下之撓曲行為。共計製作八支柱試體,其中4支柱試體以標稱降
伏強度274.68 MPa(2800 kgf/cm2)之#3筋為剪力筋,另4支柱試體則以
標稱降伏強度549.36 MPa(5600 kgf/cm2)之鋼線為剪力筋。試體尺寸
為300×300×4500mm。實驗變數為混凝土強度、軸力、橫向剪力筋形式和
橫向剪力筋強度,所有試體皆設計成撓曲破壞。試驗結果可歸納如下:1.
含高拉力剪力筋柱試體之極限撓曲強度較ACI規範 預估值高。2.在軸力
為0.4P0下,降低混凝土強度則會提高桿件延 展性,強度與勁度的遞減
較緩慢及功損失指數提高。3.承受高軸力(0.4P0)之柱件,在延展性、
強度與勁 度折減與能量消散能力上,均比承受低軸力(0.2P0) 柱件
的表現差。4.本試驗所採用高拉力鋼線,由於線徑太小、表面光滑 且箍
筋的135度彎鉤末端直線錨定長度不足,造成含 高拉力剪力筋柱試體在
極限撓曲強度、延展性、強度 與勁度折減與能量消散等方面的表現,都
較含傳統低 拉力剪力筋柱件差。

The purpose of this study is to investigate the flexural
behavior of reinforced concrete columns with high strength(550
MPa)shear reinforcement under low axial load and cyclic lateral
load . A total of eight column specimens were made in this study
. The size of specimens was 300mm×300mm×4500mm . The variables
included were concrete strength、level of axial load、types of
transverse reinforcement and strength of transverse
reinforcement . The results showed that ultimate strengths
predicted by ACI Code were conservative . Columns under higher
axial load exhibited less strength﹐ductility﹐stiffness and
capability of energy dissipation . Due to inadequate anchorage
of shear reinforcement﹐columns with high strength shear
reinforcement behaved worse than those with traditional shear
reinforcement .
URI: http://hdl.handle.net/11455/13115
Appears in Collections:土木工程學系所

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