STUDY ON DYNAMIC HYSTERESIS OF REINFORCED CONCRETE AND STEEL MEMBERS SUBJECTED TO COMBINED STRESSES AND NONLINEAR DYNAMIC ANALYSIS

复合应力下钢筋混凝土和钢构件动力滞回研究及非线性动力分析

• 批准号: 14350245
• 负责人: OTSUKA Hisanori
• 金额: $ 8.26万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350245/
• 关键词: REINFORCED CONCRETE MEMBERS; COMBINED STRESSES INCLUDING TORSION; DYNAMIC HYSTERESIS; INTERACTION CURVES FOR AXIAL FORCES AND BENDING; 純ねじり; 非線形履歴; 複合ねじり載荷試験装置

During 2002 to 2004, we conducted the experimental research to clarify the hysteresis of reinforced concrete members subjected to axial forces, bending and torsional moments. Experimental parameters are initial axial forces, pitch of hoop lateral ties, and ratios of bending loads and torsional loads. The following new conclusion is obtained by experimental results for 20 models.About restoring characteristics,1)The pitch of hoop lateral tie(HLT) remarkably affect for hysteresis loop for torsion, but not for bending.2)In torsional load surpass type, energy absorption is also carried out by bending for poor HLT models (ctc=60mm), but is not carried out by bending for sufficient HLT models (ctc=30mm).3)In case of sufficient HLT, amount of energy absorption for combined loading type is largest, but in case of poor HLT largest energy absorption member vary in accordance with surpass loading.About interaction curves of bending and torsion,1)Interaction curves become larger according to the increasing of the initial axial forces. The effect of pitch of HLT is few for crack and yield interaction curves, but it remarkably affect for ultimate strength interaction curves especially in torsion surpass region.2)For normalized interaction relations, safety side interaction curves are proposed. Interaction curves for maximum strength of the member depend on the pitch of HLT.3)The boundary of torsion surpass region and bending surpass region depend on the pitch of HLT. Therefore the further investigation to clarify the boundary is necessary.

在2002年至2004年期间，我们进行了实验研究，以阐明受轴向力，弯曲和扭转力矩的钢筋混凝土成员的滞后。实验参数是初始轴向力，箍侧扎带的螺距以及弯曲载荷和扭转载荷的比率。以下新结论是通过20个模型的实验结果获得的。恢复特征，1）箍侧扎带的音高（HLT）对扭转的磁滞回路显着影响，但不影响弯曲。2）在较差的HLT模型（CTC = 60mm）的弯曲中，吸收也是进行的，但在足够的HLT型HLT的情况下，并未通过弯曲足够的HLT模型（CTC = 30mm）。最大，但如果HLT最大的能量吸收构件随着载荷而变化。弯曲和扭转的相互作用曲线，1）根据初始轴向力的增加，相互作用曲线变得更大。对于裂纹和产量相互作用曲线，HLT的俯仰的影响很少，但是对于最终强度相互作用曲线，尤其是在扭转超越区域的最终影响。2）对于归一化的相互作用关系，提出了安全侧相互作用曲线。构件的最大强度的相互作用曲线取决于HLT的螺距。3）扭转超过区域和弯曲超过区域的边界取决于HLT的螺距。因此，需要进行进一步的调查以阐明边界。

项目成果

EXPERIMENTAL STUDY ON THE PARAMETERS EFFECTING THE HYSTERESIS LOOP OF RC MEMBERS SUBJECTED TO PURE TORSION

纯扭转作用下RC构件磁滞回线影响参数的实验研究

• 发表时间: 2003
• 期刊: JOURNAL OF MATERIALS, CONCRETE STRUCTURES AND PAVEMENTS, JSCE No.739/V-60
• 作者: H.OTSUKA;Y.WANG;T.TAKATA;T.YOSHIMURA
• 通讯作者: T.YOSHIMURA

大塚久哲: "軸力,曲げ及びねじりの複合荷重を受けるRC部材の履歴復元力に関する実験的考察"土木学会地震工学論文集. Vol.27(CD-R所載). (2003)

Hisatoshi Otsuka：“受轴向力、弯曲和扭转联合载荷影响的 RC 构件的滞后恢复力的实验研究”，日本土木工程师协会地震工程学报，第 27 卷（CD-R）。

STUDY ON THE BEHAVIOUR OF REINFORCED CONCRETE MEMBERS SUBJECTED TO TORSIONAL MOMENT, ENDING MOMENTS AND AXIAL FORCE

钢筋混凝土构件在扭转力矩、终止力矩和轴力作用下的行为研究

• 发表时间: 2005
• 期刊: JSCE JOURNAL OF STRUCTURAL ENGINEERING Vol.51A
• 作者: Y.URAKAWA;H.OTSUKA;E.TAKESHITA
• 通讯作者: E.TAKESHITA

純ねじりを受けるRC部材の復元力特性の定式化

纯扭转作用下RC构件恢复力特性的公式化

• 发表时间: 2003
• 期刊: コンクリート工学年次論文集 25-2
• 作者: 大塚久哲;王尭;石原真一;吉村徹
• 通讯作者: 吉村徹

STUDY ON THE SEISMIC PERFORMANCE OF REINFORCED CONCRETE COLUMNS SUBJECTED TO TORSIONAL MOMENT, ENDING MOMEN TS AND AXIAL FORCE

扭转力矩、终止力矩TS和轴力作用下钢筋混凝土柱的抗震性能研究

• 发表时间: 2004
• 期刊: 13th World Conference on Earthquake Engineering, Vancouver, Canada No.393
• 作者: H.OTSUKA;E.TAKESHITA;W.YABUKI;Y.Wang;T.YOSHIMURA;M.TSUNOMOTO
• 通讯作者: M.TSUNOMOTO