邓明科, 刘俊超, 张阳玺, 刘海勃, 景武斌. 钢板-高延性混凝土组合低矮剪力墙抗震性能试验研究[J]. 工程力学, 2021, 38(3): 40-49. DOI: 10.6052/j.issn.1000-4750.2019.07.0414
引用本文: 邓明科, 刘俊超, 张阳玺, 刘海勃, 景武斌. 钢板-高延性混凝土组合低矮剪力墙抗震性能试验研究[J]. 工程力学, 2021, 38(3): 40-49. DOI: 10.6052/j.issn.1000-4750.2019.07.0414
DENG Ming-ke, LIU Jun-chao, ZHANG Yang-xi, LIU Hai-bo, JING Wu-bin. INVESTIGATION ON THE SEISMIC BEHAVIOR OF STEEL-PLATE AND HIGH DUCTILE CONCRETE COMPOSITE LOW-RISE SHEAR WALLS[J]. Engineering Mechanics, 2021, 38(3): 40-49. DOI: 10.6052/j.issn.1000-4750.2019.07.0414
Citation: DENG Ming-ke, LIU Jun-chao, ZHANG Yang-xi, LIU Hai-bo, JING Wu-bin. INVESTIGATION ON THE SEISMIC BEHAVIOR OF STEEL-PLATE AND HIGH DUCTILE CONCRETE COMPOSITE LOW-RISE SHEAR WALLS[J]. Engineering Mechanics, 2021, 38(3): 40-49. DOI: 10.6052/j.issn.1000-4750.2019.07.0414

钢板-高延性混凝土组合低矮剪力墙抗震性能试验研究

INVESTIGATION ON THE SEISMIC BEHAVIOR OF STEEL-PLATE AND HIGH DUCTILE CONCRETE COMPOSITE LOW-RISE SHEAR WALLS

  • 摘要: 为提高低矮剪力墙的抗震性能,提出外包钢板-高延性混凝土(HDC)组合低矮剪力墙。设计了1片HDC低矮剪力墙、2片内置钢板-HDC组合低矮剪力墙和2片外包钢板-HDC组合低矮剪力墙,通过拟静力试验,研究了轴压比、配钢形式对试件破坏形态、滞回性能、承载能力、变形能力、耗能能力和刚度退化的影响。试验结果表明:HDC低矮剪力墙发生剪切破坏,内置钢板-HDC组合低矮剪力墙发生弯剪破坏,外包钢板-HDC组合低矮剪力墙发生弯曲破坏;与HDC低矮剪力墙相比,钢板-HDC组合低矮剪力墙的变形能力和承载力明显提高;钢板-HDC组合低矮剪力墙的峰值荷载和刚度受轴压比的影响较小;轴压比从0.5变到0.7时,内置钢板-HDC组合低矮剪力墙的变形能力降低,外包钢板-HDC组合低矮剪力墙的变形能力没有降低;提出钢板-HDC组合低矮剪力墙受弯承载力计算公式,其计算值与试验值吻合较好。

     

    Abstract: To improve the seismic behavior of low-rise shear walls, the double steel plates and high ductile concrete (HDC) composite low-rise shear wall (DHW) was proposed. One HDC low-rise shear wall (HW), two single steel plate reinforced HDC low-rise shear walls (SHW) and two DHWs were designed. The influence of the axial load ratios and steel distribution form on the failure modes, hysteretic performance, shear capacity, deformation capacity, energy dissipation capacity and stiffness degradation of the specimens were studied by quasi-static tests. The experimental results indicate that the failure modes of the HW, SHW and DHW are the shear failure, the flexural-shear failure and the flexural failure, respectively. The deformability and strength capacity of the steel-plate and HDC composite low-rise shear walls are significantly improved compared with those of the HWs. The axial load ratio has little effect on the peak load and stiffness of the steel-plate and HDC composite low-rise shear walls. When the axial load ratio increases from 0.5 to 0.7, the deformation capability of the SHW decreases, whereas the deformation capability of the DHW does not decrease. Formulas for predicting the bending capacity of the steel-plate and HDC composite low-rise shear walls are suggested, and the calculation results agree well with the test results.

     

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