| 钢板-高延性混凝土组合低矮剪力墙抗震性能试验研究 |
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| 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 |
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| 作者姓名： | 邓明科 刘俊超 张阳玺 刘海勃 景武斌 |
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| 作者单位： | 西安建筑科技大学土木工程学院,西安710055;西安建筑科技大学结构工程与抗震教育部重点实验室,西安710055;西安建筑科技大学土木工程学院,西安710055;中国电建集团西北勘测设计研究院有限公司,西安710065;西安五和土木工程新材料有限公司,西安710055 |
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| 基金项目： | 国家自然科学基金项目(51578445,51708445)。 |
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| 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。
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| 关 键 词： | 高延性混凝土 外包钢板-HDC组合低矮剪力墙 内置钢板-HDC组合低矮剪力墙 抗震性能 拟静力试验 受弯承载力 |
| 收稿时间： | 2019-07-25 |
INVESTIGATION ON THE SEISMIC BEHAVIOR OF STEEL-PLATE AND HIGH DUCTILE CONCRETE COMPOSITE LOW-RISE SHEAR WALLS |
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| 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 |
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| Authors: | DENG Ming-ke LIU Jun-chao ZHANG Yang-xi LIU Hai-bo JING Wu-bin |
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| Affiliation: | 1.School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China2.Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education (XAUAT), Xi’an 710055, China3.Northwest Engineering Co., Ltd, Xi’an 710065, China4.Xi’an Wuhe Civil Engineering New Materials Co., Ltd, Xi’an 710055, China |
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| 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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| Keywords: | high ductile concrete double steel plates and high ductile concrete composite low-rise shear wall single steel plate reinforced high ductile concrete low-rise shear wall seismic behavior quasi-static test bending capacity |
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