Influence of Peak Ground Displacement and Peak Ground Velocity of Ground Motion on Dynamic Response of Underground Structures
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摘要: 针对3类不同的典型场地条件下的单层双跨地铁车站结构，采用土-地下结构整体动力时程分析方法，分析了地震动水平输入时峰值位移和峰值速度差异对地下结构地震反应的影响。结果表明，地震动峰值速度差异对地下结构地震反应的影响，在硬土场地条件下较大，中硬场地条件下次之，软土场地条件下最小；地震动峰值位移差异对不同场地条件下的地下结构的地震反应无明显影响。Abstract: In this paper an integral dynamic time history method for soil-structure system is applied to study the dynamic response of a one-story two-span subway station in three typical sites. The influence of peak displacement and peak velocity on the seismic response of the station structure are analyzed through mathematical statistics. The results show that the change of PGV has great effect on the seismic response of underground structures for a hard site, mediate effect for mid-hard site, and minor effect for soft site. The change of PGD has no clear effect on the seismic response of underground structures for different sites.
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图 3 不同场地条件土-结构体系有限元模型
Figure 3. Finite element models of soil-structure system in different sites
图 4 中柱相对位移峰值均值和变异性
Figure 4. The mean value and variability of interior column relative displacement peak
图 5 中柱顶端剪力值均值和变异性
Figure 5. The mean value and variability of shear value at the top of interior column
图 6 中柱顶端弯矩均值和变异性
Figure 6. The mean value and variability of moment value at the top of interior column
图 7 顶板处土层剪力均值和变异性
Figure 7. The mean value and variability of soil shear force at top slab
图 8 底板处土层剪力均值和变异性
Figure 8. The mean value and variability of soil shear force at bottom slab
图 9 侧墙处土层剪力均值和变异性
Figure 9. The mean value and variability of soil shear force at side wall
图 11 中柱位移峰值均值和变异性
Figure 11. The mean value and variability of interior column relative displacement peak
图 12 中柱顶剪力均值和变异性
Figure 12. The mean value and variability of shear value at the top of interior column
图 13 中柱顶弯矩均值和变异性
Figure 13. The mean value and variability of moment value at the top of interior column
图 14 结构顶板处土层剪力均值和变异性
Figure 14. The mean value and variability of soil shear force at top slab
图 15 结构底板处土层剪力均值和变异性
Figure 15. The mean value and variability of soil shear force at bottom slab
图 16 结构侧墙处土层剪力均值和变异性
Figure 16. The mean value and variability of soil shear force at side wall
表 1 场地土层剖面材料
Table 1. Site soil material
典型场地 层号 层厚/m 土层类别 密度/kg·m－3 剪切模量/MPa 剪切波速/m·s－1 金安桥 1 4.0 人工填土 17.0 65.2 194 2 9.0 圆砾卵石1 21.0 481 474 3 10.0 圆砾卵石2 22.0 796.6 596 4 17.0 圆砾卵石3 21.5 815.5 610 珠市口 1 1.6 人工填土 17.5 57.8 180 2 3.5 粉质黏土 19.0 113.4 242 3 6.0 细-中砂 20.0 178.6 296 4 7.4 细-粉砂 20.0 180 159 5 21.5 圆砾卵石 22.8 538.5 480 星海广场 1 5.5 淤泥质土 19.2 25.0 114 2 16.5 淤泥粉质黏土 18.7 47.9 160 3 17.0 粉细砂 19.0 105.8 235 4 21.0 粘土 20.2 126.3 250 
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杜修力, 王福源, 王进廷等, 2015.地震动峰值位移对高拱坝地震反应的影响.水力发电学报, 34(11):134-142. doi: 10.11660/slfdxb.20151115 杜修力, 康凯丽, 许紫刚等, 2018. 地下结构地震反应的主要特征及规律. 土木工程学报, 待刊. 杜修力, 李洋, 赵密等, 2017.下卧刚性基岩条件下场地土-结构体系地震反应分析方法研究.工程力学, 34(5):52-59. http://www.cnki.com.cn/Article/CJFDTOTAL-GCLX200608014.htm 江近仁, 洪峰, 1984.功率谱与反应谱的转换和人造地震波.地震工程与工程振动, 4(3):1-11. http://www.cnki.com.cn/Article/CJFDTOTAL-DGGC198403000.htm 钱七虎, 1999.岩土工程的第四次浪潮.地下空间, 19(4):267-272. http://d.wanfangdata.com.cn/Periodical_dxkj199904002.aspx 孙忠贤, 2009.地震动特性对结构地震反应的影响分析.哈尔滨:中国地震局工程力学研究所. 许成顺, 许紫刚, 杜修力等, 2017.地下结构抗震简化分析方法比较研究.地震工程与工程振动, 37(2):65-80. http://www.cnki.com.cn/Article/CJFDTotal-XDSD201503016.htm 尤红兵, 张郁山, 赵凤新, 2011.地震动峰值速度对地下隧洞内力的影响研究.震灾防御技术, 6(2):105-115. doi: 10.11899/zzfy20110201 张郁山, 赵凤新, 2011.地震动峰值位移对单自由度体系非线性动力反应的影响.工程力学, 28(1):55-64. http://www.cnki.com.cn/Article/CJFDTOTAL-GCLX201101012.htm 赵凤新, 胡聿贤, 1994.地震动非平稳性与幅值谱和相位差谱的关系.地震工程与工程振动, 14(2):1-6. http://www.cnki.com.cn/Article/CJFDTOTAL-DGGC199402000.htm 赵凤新, 张郁山, 2007.拟合峰值位移与目标反应谱的人造地震动.核动力工程, 28(2):38-41. https://www.wenkuxiazai.com/doc/74813044f01dc281e53af06b.html 周媛, 赵凤新, 霍新等, 2006.地震动位移峰值对斜拉桥地震反应的影响.中国地震, 22(4):418-424. http://mall.cnki.net/magazine/Article/DGGC201106008.htm Akkar S., Özen Ö., 2005. Effect of peak ground velocity on deformation demands for SDOF systems. Earthquake Engineering and Structural Dynamics, 34 (13):1551-1571. doi: 10.1002/(ISSN)1096-9845 Hashash Y. M. A., Hook J. J., Schmidt B., et al., 2001. Seismic design and analysis of underground structures. Tunnelling and Underground Space Technology, 16 (6):247-293. http://www.sciencedirect.com/science/article/pii/S0886779801000517 Karim K. R., Yamazaki F., 2001. Effect of earthquake ground motions on fragility curves of highway bridge piers based on numerical simulation. Earthquake Engineering and Structural Dynamics, 30 (12):1839-1856. doi: 10.1002/(ISSN)1096-9845 Scanlan R. H., 1974. Earthquake time histories and response spectra. Journal of the Engineering Mechanics Division, 100 (4):635-655. https://www.researchgate.net/publication/283963513_EARTHQUAKE_TIME_HISTORIES_AND_RESPONSE_SPECTRA Wang J. T., Jin A. Y., Du X. L., et al., 2016. Scatter of dynamic response and damage of an arch dam subjected to artificial earthquake accelerograms. Soil Dynamics and Earthquake Engineering, 87:93-100. doi: 10.1016/j.soildyn.2016.05.003 You H. B., 2011. Influence of PGV on the internal forces of subway station. Applied Mechanics and Materials, 90-93:1987-1991. doi: 10.4028/www.scientific.net/AMM.90-93 Zhao F. X., Zhang Y. S., Lü H. S., 2006. Artificial ground motion compatible with specified ground shaking peaks and target response spectrum. Earthquake Engineering and Engineering Vibration, 5 (1):41-48. doi: 10.1007/s11803-006-0625-y -
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