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内嵌填充墙体框架结构抗震性能分析及抗侧刚度公式

王波 孙嘉 王静峰 马芹永 沈万玉

王波, 孙嘉, 王静峰, 马芹永, 沈万玉. 内嵌填充墙体框架结构抗震性能分析及抗侧刚度公式[J]. 工程力学, 2023, 40(6): 37-45. doi: 10.6052/j.issn.1000-4750.2021.11.0842
引用本文: 王波, 孙嘉, 王静峰, 马芹永, 沈万玉. 内嵌填充墙体框架结构抗震性能分析及抗侧刚度公式[J]. 工程力学, 2023, 40(6): 37-45. doi: 10.6052/j.issn.1000-4750.2021.11.0842
WANG Bo, SUN Jia, WANG Jing-feng, MA Qin-yong, SHEN Wan-yu. SEISMIC PERFORMANCE ANALYSIS AND LATERAL STIFFNESS OF INFILLED FRAME STRUCTURE[J]. Engineering Mechanics, 2023, 40(6): 37-45. doi: 10.6052/j.issn.1000-4750.2021.11.0842
Citation: WANG Bo, SUN Jia, WANG Jing-feng, MA Qin-yong, SHEN Wan-yu. SEISMIC PERFORMANCE ANALYSIS AND LATERAL STIFFNESS OF INFILLED FRAME STRUCTURE[J]. Engineering Mechanics, 2023, 40(6): 37-45. doi: 10.6052/j.issn.1000-4750.2021.11.0842

内嵌填充墙体框架结构抗震性能分析及抗侧刚度公式

doi: 10.6052/j.issn.1000-4750.2021.11.0842
基金项目: 安徽省协同创新项目(GXXT-2019-005);国家自然科学基金项目(52178136)
详细信息
    作者简介:

    王 波(1976−),女,安徽合肥人,副教授,博士,主要从事结构工程研究(E-mail: bobo2032007@163.com)

    孙 嘉(1996−),男,江苏扬州人,硕士生,主要从事结构抗震研究(E-mail: 38177957@qq.com)

    马芹永(1964−),男,安徽淮南人,教授,博士,主要从事混凝土结构研究(E-mail: qymaah@126.com)

    沈万玉(1983−),男,安徽怀远人,正高工,硕士,总经理,主要从事钢结构施工技术研究(E-mail: shwy@fuhuang.com)

    通讯作者:

    王静峰(1976−),男,安徽合肥人,教授,博士,院长,主要从事组合结构研究(E-mail: jfwang008@163.com)

  • 中图分类号: TU398+.2

SEISMIC PERFORMANCE ANALYSIS AND LATERAL STIFFNESS OF INFILLED FRAME STRUCTURE

  • 摘要: 结构初始刚度是工程抗震设计中的重要参数,在内嵌蒸压加气混凝土(ALC)板框架结构拟静力试验的基础上,基于试验现象,提出了一种填充墙体-框架结构相互作用模型并推导出结构初始刚度计算公式。建立5组28个有限元模型,研究梁柱线刚度比、墙体高宽比、嵌缝材料弹性模量、墙体弹性模量和厚度对填充墙体刚度贡献的影响。研究发现:填充墙体的刚度贡献主要受局部压缩的影响,其贡献程度与墙体-框架抗侧刚度之比呈负相关。基于此,通过拟合得到了墙体刚度折减系数aw关系式,通过与试验结果的对比,结果表明:该文提出的内嵌填充墙体框架初始刚度计算公式结果准确,可以为工程实践提供参考。
  • 图  1  试件总体尺寸示意图 /mm

    Figure  1.  Overall dimension diagram of specimens

    图  2  试件AFW试验现象

    Figure  2.  Experimental phenomena of specimen AFW

    图  3  框架-填充墙相互作用模型

    Figure  3.  Frame-infill wall interaction model

    图  4  有限元模型

    Figure  4.  Finite element model

    图  5  刚度与影响因素关系曲线

    Figure  5.  Curves between stiffness and influencing factors

    图  6  刚度折减系数拟合结果

    Figure  6.  Fitting results of stiffness reduction coefficient

    表  1  不同墙体边界条件下试件刚度试算结果

    Table  1.   Test results of stiffness under different wall boundary conditions

    参考文献试件编号试验结果K0/(kN/mm)有限元结果
    五等分K5/(kN/mm)K5/K0七等分K7/(kN/mm)K7/K0十等分K10/(kN/mm)K10/K0
    李响[19]BFW123.623.71.00424.91.05526.11.106
    黄群贤[27]AFKJ466.060.60.91863.40.96166.41.006
    AFKJ568.567.30.98268.71.00370.71.032
    林超[28]IF549.148.90.99652.31.10856.81.203
    吕超[29]TK116.518.11.09719.41.17621.01.273
    平均值1.0001.0601.124
    方差0.0640.0850.113
    下载: 导出CSV

    表  2  参数设计及有限元计算结果

    Table  2.   Results of finite element analysis under different parameters

    主要参数梁柱线刚度比嵌缝材料弹性模量Em/MPa墙体弹性模量Ew/MPa墙体高宽比墙体厚度t/mm框架抗侧刚度Kf/(kN/mm)结构抗侧刚度Kfw/(kN/mm)墙体刚度折减系数aw
    梁柱线刚度比0.2310231021250/200012021.950.70.195
    0.5310231021250/200012029.359.90.206
    0.8310231021250/200012033.365.20.215
    1.0310231021250/200012035.167.60.219
    2.0310231021250/200012039.874.10.231
    3.0310231021250/200012041.877.10.238
    4.0310231021250/200012043.078.80.241
    5.0310231021250/200012043.779.90.244
    嵌缝砂浆弹性模量3331021250/200012041.847.0
    33031021250/200012041.860.2
    330031021250/200012041.874.0
    3100031021250/200012041.877.1
    3600031021250/200012041.881.7
    31000031021250/200012041.883.7
    31500031021250/200012041.885.6
    墙体高宽比3310231021250/125012042.459.20.270
    3310231021250/150012042.264.70.252
    3310231021250/175012042.070.90.244
    3310231021250/225012041.782.50.228
    3310231021250/250012041.586.90.216
    墙体弹性模量3150015001250/200012041.860.10.254
    3600060001250/200012041.8104.10.218
    3900090001250/200012041.8128.90.204
    315000150001250/200012041.8172.70.185
    330000300001250/200012041.8262.50.158
    墙体厚度3310231021250/20006041.861.80.269
    3310231021250/20009041.869.80.252
    3310231021250/200015041.883.80.227
    下载: 导出CSV

    表  3  理论计算结果与试验结果对比

    Table  3.   Comparison between theoretical calculation results and experimental results

    参考文献试件编号梁柱线刚度比嵌缝材料弹性模量Em/MPa墙体弹性模量Ew/MPa框架与墙体抗侧刚度之比i墙体刚度折减系数aw结构理论抗侧刚度$K_{{\rm{fw}}}' $/(kN/mm)结构试验抗侧刚度Kfw/(kN/mm)结构试验与理论抗侧刚度比$K_{{\rm{fw}}}' $/Kfw
    卞文军等[15]QK0.4317500.1310.20912.712.01.06
    李响[19]BFW10.7817500.0850.19522.523.60.95
    黄群贤[27]AFKJ50.3731020.1050.20275.168.51.10
    林超[28]IF50.4821120.1730.21950.149.11.02
    吕超[29]TK10.3417500.1180.20618.716.51.13
    曹正罡等[30]KJ-20.8217500.3460.24418.818.21.03
    周晓洁[31]RWF10.4910200.3080.24058.355.01.06
    王宇轩[32]KK0.91800032 5000.0870.196139.8134.41.04
    孙嘉[33]KJ2一层0.7316120.3580.24744.248.50.91
    KJ2二层0.7116120.3580.24742.441.11.03
    平均值1.03
    方差0.05
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-11-01
  • 修回日期:  2023-01-17
  • 网络出版日期:  2023-03-21
  • 刊出日期:  2023-06-25

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