Mechanical Behavior of Concrete filled FRP and Steel Double Skin Tube Bridge Column

FRP钢双皮管混凝土桥柱的力学性能

• 批准号: 15360239
• 负责人: SUGIURA Kunitomo
• 金额: $ 7.49万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15360239/
• 关键词: steel tube; FRP tube; concrete; double skin tube; strength; ductility; rigidity

Studied herein is the mechanical behavior of FRP tube and steel tube double skin bridge columns (CDST), which have compared with the standard of high piers in the construction of highways recently, namely steel tube embedded concrete bridge columns. First of all, the strength interaction curve of CDST members subjected to axial force and bending moment is assessed. Particular emphasis is placed on the optimum arrangement of steel tubes in strength. It is concluded that the cross section with single and large size of inner tube is superior in strength and ductility compared to that with multiple inner relatively small tubes. Secondly, the compressive strength of CDST was studied experimentally, where the effectiveness of FRP outer tube compared to the ordinary steel tube used in CFT. It is understood that the thicker inner steel tube is eccential to confine the filled concrete, because of its severe biaxial compressive stress condition. It is also concluded that FRP tube with fiber direction in the circumference of tube can provide the good confinement to filled concrete and the strength of CDST can be equivalent or even better that that of CFT, with the significant reduction of the total weight.

本文研究了FRP管和钢管双皮桥柱(CDST)的受力性能，并与近期高速公路建设中的高墩标准，即钢管预埋混凝土桥柱进行了比较。首先，评估CDST构件在轴力和弯矩作用下的强度相互作用曲线。特别强调钢管强度的优化布置。结果表明，单根大尺寸内管截面比多根较小内管截面在强度和延展性方面更优越。其次，对CDST的抗压强度进行了实验研究，其中FRP外管与CFT中使用的普通钢管的有效性进行了比较。据了解，较厚的内钢管由于其严重的双轴压应力条件，对于限制填充混凝土至关重要。还得出结论，管周具有纤维方向的FRP管可以对填充混凝土提供良好的约束，CDST的强度可以与CFT相当甚至更好，并且总重量显着减轻。

项目成果

コンクリート充填二重鋼管柱の圧縮耐力に関する研究

双钢管混凝土柱抗压强度研究

• 发表时间: 2005
• 期刊: 第6回複合構造の活用に関するシンポジウム概要集 (CD-ROM)
• 作者: 崔鉉俊;杉浦邦征;大島義信
• 通讯作者: 大島義信

薄肉ウェブを用いた合成ハイブリッド箱桁の提案

使用薄腹板的合成混合箱梁的方案

• 发表时间: 2005
• 期刊: 第6回複合構造の活用に関するシンポジウム概要集 (CD-ROM)
• 作者: 利根川太朗;渡邊英一;杉浦邦征;山口隆司;岩川貴志
• 通讯作者: 岩川貴志

CFRP-コンクリート合成桁の曲げ挙動特性に関する実験的検討

CFRP-混凝土组合梁弯曲性能试验研究

• 发表时间: 2005
• 期刊: 構造工学論文集(土木学会) 51A
• 作者: 杉浦邦征;北川淳一;大島義信;小野紘一;小牧秀之;北根安雄
• 通讯作者: 北根安雄

Structural Behavior of Concrete-Filled Double-Skin Tubular Columns

双层管混凝土柱的结构性能

• 发表时间: 2005
• 期刊: Proc.of the 6th Application of Composit strucrures (CD-ROM)
• 作者: Choi;H.-J.;Sugiura;K.;Oshima;Y.
• 通讯作者: Y.

Development of Thin-Walled Hybrid HPS Box Girder with Steel Concrete Composite Sandwich Slab

钢混凝土组合夹芯板薄壁混合高压钠箱梁的研制

• 发表时间: 2005
• 期刊: Proc. of the 6th Japanese German Bridge Symposium (CD-ROM)
• 作者: Tonegawa;T.;Watanabe;E.;Sugiura;K.;et al.
• 通讯作者: et al.