赵花静, 李青宁, 赵珺, 李书锋, 郑玉. 高强矩形螺旋钢筋约束高强混凝土剪力墙截面弯矩-曲率计算方法研究[J]. 工程力学, 2020, 37(9): 123-132. DOI: 10.6052/j.issn.1000-4750.2019.10.0603
引用本文: 赵花静, 李青宁, 赵珺, 李书锋, 郑玉. 高强矩形螺旋钢筋约束高强混凝土剪力墙截面弯矩-曲率计算方法研究[J]. 工程力学, 2020, 37(9): 123-132. DOI: 10.6052/j.issn.1000-4750.2019.10.0603
ZHAO Hua-jing, LI Qing-ning, ZHAO Jun, LI Shu-feng, ZHENG Yu. CALCULATION METHOD FOR MOMENT-CURVATURE OF HIGH-STRENGTH CONCRETE SHEAR WALL CONFINED WITH HIGN-STRENGTH RECTANGLE SPIRAL REINFORCEMENTS[J]. Engineering Mechanics, 2020, 37(9): 123-132. DOI: 10.6052/j.issn.1000-4750.2019.10.0603
Citation: ZHAO Hua-jing, LI Qing-ning, ZHAO Jun, LI Shu-feng, ZHENG Yu. CALCULATION METHOD FOR MOMENT-CURVATURE OF HIGH-STRENGTH CONCRETE SHEAR WALL CONFINED WITH HIGN-STRENGTH RECTANGLE SPIRAL REINFORCEMENTS[J]. Engineering Mechanics, 2020, 37(9): 123-132. DOI: 10.6052/j.issn.1000-4750.2019.10.0603

高强矩形螺旋钢筋约束高强混凝土剪力墙截面弯矩-曲率计算方法研究

CALCULATION METHOD FOR MOMENT-CURVATURE OF HIGH-STRENGTH CONCRETE SHEAR WALL CONFINED WITH HIGN-STRENGTH RECTANGLE SPIRAL REINFORCEMENTS

  • 摘要: 为改善高强混凝土剪力墙的抗震性能,将高强矩形螺旋钢筋(HRSRs)应用于高强混凝土剪力墙的约束边缘构件及墙身。通过对10个HRSR高强混凝土剪力墙抗震性能的研究,并基于对HRSR强约束作用的考虑,提出与HRSR高强混凝土剪力墙开裂状态、屈服状态、峰值状态和极限状态对应的弯矩-曲率计算方法。研究表明,该文建议的压弯构件弯矩-曲率计算公式能较为准确地描述剪力墙各阶段的荷载-变形关系,计算值与试验值吻合较好。与普通箍筋形式的高强混凝土剪力墙相比,采用连续封闭的HRSR,能够显著提高高强混凝土剪力墙截面的承载能力和变形能力。

     

    Abstract: In order to improve the seismic performance of high-strength concrete shear walls, the high-strength rectangular spiral reinforcements (HRSRs) are applied to the constrained edge members and wall body of high-strength concrete shear wall. Through the seismic performance investigations of 10 high-strength concrete shear walls confined with HRSR, and considering the strong constraint of HRSR, the bending moment curvature calculation method of high-strength concrete shear walls confined with HRSR is proposed corresponding to the cracking, yielding, peak and ultimate states. The study shows that the bending moment curvature formula of the bending member can describe the load-deformation relation of the shear wall more accurately, and the calculated values are in good agreement with the experimental values. Compared with the form of common stirrup, the continuous closed HRSR can significantly improve the sectional bearing capacity and deformation capacity of high-strength concrete shear walls.

     

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