• ISSN 1673-5722
  • CN 11-5429/P

SH波斜入射下水平成层场地地震动特性研究

陈三红 张郁山 郝明辉

陈三红,张郁山,郝明辉,2024. SH波斜入射下水平成层场地地震动特性研究. 震灾防御技术,19(1):88−95. doi:10.11899/zzfy20240109. doi: 10.11899/zzfy20240109
引用本文: 陈三红,张郁山,郝明辉,2024. SH波斜入射下水平成层场地地震动特性研究. 震灾防御技术,19(1):88−95. doi:10.11899/zzfy20240109. doi: 10.11899/zzfy20240109
Chen Sanhong, Zhang Yushan, Hao Minghui. Ground Motion Characteristics of Horizontal Layered Site Based on SH Wave Oblique Incidence[J]. Technology for Earthquake Disaster Prevention, 2024, 19(1): 88-95. doi: 10.11899/zzfy20240109
Citation: Chen Sanhong, Zhang Yushan, Hao Minghui. Ground Motion Characteristics of Horizontal Layered Site Based on SH Wave Oblique Incidence[J]. Technology for Earthquake Disaster Prevention, 2024, 19(1): 88-95. doi: 10.11899/zzfy20240109

SH波斜入射下水平成层场地地震动特性研究

doi: 10.11899/zzfy20240109
基金项目: 地震科技星火计划( XH21049Y);国家重点研发计划重点专项(2018YFC1504600)
详细信息
    作者简介:

    陈三红,女,生于1994年。硕士研究生,工程师。主要从事复杂场地效应等方面的研究。E-mail:1561980175@qq.com

Ground Motion Characteristics of Horizontal Layered Site Based on SH Wave Oblique Incidence

  • 摘要: 基于位移场理论和传递矩阵法,建立SH波斜入射下水平成层场地非线性地震反应等效线性化求解方法,研究SH波不同角度入射下场地地表峰值加速度放大系数及反应谱谱比变化规律。研究结果表明,地震波入射角度对场地地表峰值加速度影响明显,在大多数情况下,地震波斜入射下地表峰值加速度大于垂直入射;地震波斜入射下反应谱特性变化明显,入射角度对高频段反应谱的放大效应显著,且入射角度对不同类型场地的影响周期范围不同,入射角度对Ⅲ类场地周期影响范围明显宽于Ⅱ类场地。
  • 图  1  SH波不同角度入射下自由表面加速度峰值变化比较

    Figure  1.  Compare of the peak acceleration excited by SH wave with different angles

    图  2  天然地震波加速度时程曲线

    Figure  2.  Acceleration time-history curves of input ground motions

    图  3  天然地震波加速度反应谱曲线

    Figure  3.  Acceleration Spectrum curves of input ground motions

    图  4  场地土剪切模量比和阻尼比随剪应变变化曲线

    Figure  4.  The curve shows change of shear modulus ratio and damping ratio change with shear strain

    图  5  地震波入射角度对峰值加速度放大系数的影响

    Figure  5.  Influence of incident angle on PGA amplification coefficient

    图  6  所有地震波以60°入射下的反应谱谱比曲线

    Figure  6.  Spectral ratio curves under the inputs of natural ground motions at 60°incidence

    图  7  不同强度地震波斜入射下反应谱放大系数

    Figure  7.  Magnification of response spectrum under oblique incidence with different intensities of seismic waves

    表  1  天然地震波基本信息

    Table  1.   Basic information of natural ground motions

    编号地震名称震级/级台站名称震中距/km记录分量
    11979年美国Imperial Valley-06地震6.5Parachute Test Site12.69225
    21999年台湾集集地震7.6TCU04616.74EW
    31978年伊朗Tabas地震7.3Tabas2.05L1
    41999年台湾集集地震7.6TCU0750.89EW
    52004年日本新泻地震6.6TYMH05175.52NS
    61999年美国Hector Mine地震7.1Amboy43.05090
    71999年台湾集集地震7.6TCU1012.11EW
    82010年墨西El Mayor-Cucapah地震7.2El Centro Array #1211.26000
    下载: 导出CSV

    表  2  千叶场地计算模型参数

    Table  2.   Model parameters of the Chiba-ken site

    土层编号土类名称剪切波速/
    (m·s−1
    密度/(g·cm−3层厚/m
    1亚黏土1401.755
    2砂质黏土3201.805
    3细砂3202.0014
    4细砂4202.1016
    5基岩输入5402.20
    下载: 导出CSV

    表  3  地铁17号线某站场计算模型参数

    Table  3.   Model parameters of the Line 17 Subway site

    土层编号土类名称剪切波速/
    (m·s−1
    密度/(g·cm−3层厚/m
    1粉质黏土1921.9010
    2细砂2361.9525
    3粉质黏土3312.0010
    4细砂3552.0026
    5粉质黏土3622.0512
    6粉质黏土4162.1017
    7粉质黏土4672.1528
    8基岩输入5052.20
    下载: 导出CSV
  • 陈维, 2007. 多层土粘弹性边界的二维斜入射SH波时域输入. 山西建筑, 33(25): 84—85

    Chen W. , 2007. A method of inclined-incidence SH waves input on viscous-spring boundary in multilayered soil. Shanxi Architecture, 33(25): 84—85. (in Chinese)
    范留明, 赵钦, 2014. 成层半空间出平面自由波场的界面子波算法. 地震工程学报, 36(4): 765—772

    Fan L. M. , Zhao Q. , 2014. Interfacial wavelet superposition method for out-of-plane wave motion of a free field in a layered half space. China Earthquake Engineering Journal, 36(4): 765—772. (in Chinese)
    高智能, 卓卫东, 谷音, 2017. SH波斜入射时有阻尼成层介质自由场的一维化时域算法. 振动与冲击, 36(16): 37—43, 84

    Gao Z. N. , Zhuo W. D. , Gu Y. , 2017. A 1 D time-domain method for free field motion in layered media with damping under obliquely incident SH wave. Journal of Vibration and Shock, 36(16): 37—43, 84. (in Chinese)
    廖河山, 陈清军, 徐植信, 1994. SH波倾斜入射时土层的非线性响应分析. 同济大学学报, 22(4): 517—522

    Liao H. S. , Chen Q. J. , Xu Z. X. , 1994. Nonlinear responses of layered soils to obliquely incident SH waves. Journal of Tongji University, 22(4): 517—522. (in Chinese)
    刘晶波, 王艳, 2006. 成层半空间出平面自由波场的一维化时域算法. 力学学报, 38(2): 219—225

    Liu J. B. , Wang Y. , 2006. A 1-D time-domain method for 2-D wave motion in elastic layered half-space by antiplane wave oblique incidence. Chinese Journal of Theoretical and Applied Mechanics, 38(2): 219—225. (in Chinese)
    王笃国, 赵成刚, 2016. 地震波斜入射时二维成层介质自由场求解的等效线性化方法. 岩土工程学报, 38(3): 554—561

    Wang D. G. , Zhao C. G. , 2016. Two-dimensional equivalent linear seismic analysis of free field in layered half-space due to oblique incidence. Chinese Journal of Geotechnical Engineering, 38(3): 554—561. (in Chinese)
    尤红兵, 赵凤新, 荣棉水, 2009. 地震波斜入射时水平层状场地的非线性地震反应. 岩土工程学报, 31(2): 234—240

    You H. B. , Zhao F. X. , Rong M. S. , 2009. Nonlinear seismic response of horizontal layered site due to inclined wave. Chinese Journal of Geotechnical Engineering, 31(2): 234—240. (in Chinese)
    Heymsfield E. , 2000. Two-dimensional scattering of SH waves in a soil layer underlain with a sloping bedrock. Soil Dynamics and Earthquake Engineering, 19(7): 489—500. doi: 10.1016/S0267-7261(00)00030-0
    Katayama T. , Yamazaki F. , Nagata S. , et al, 1990. A strong motion database for the Chiba seismometer array and its engineering analysis. Earthquake Engineering & Structural Dynamics, 19(8): 1089—1106.
    Lee V. W. , Luo H. , Liang J. W. , 2006. Antiplane (SH) waves diffraction by a semicircular cylindrical hill revisited: an improved analytic wave series solution. Journal of Engineering Mechanics, 132(10): 1106—1114. doi: 10.1061/(ASCE)0733-9399(2006)132:10(1106)
    Liu G. , Chen H. T. , Liu D. K. et al. , 2010. Surface motion of a half-space with triangular and semicircular hills under incident SH waves. Bulletin of the Seismological Society of America, 100(3): 1306—1319. doi: 10.1785/0120090273
    Tsaur D. H. , Chang K. H. , 2009. Scattering and focusing of SH waves by a convex circular-arc topography. Geophysical Journal International, 177(1): 222—234. doi: 10.1111/j.1365-246X.2008.04080.x
    Tsaur D. H. , 2011. Scattering and focusing of SH waves by a lower semielliptic convex topography. Bulletin of the Seismological Society of America, 101(5): 2212—2219. doi: 10.1785/0120100324
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出版历程
  • 收稿日期:  2022-12-02
  • 刊出日期:  2024-03-31

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