Seismic response of a concrete-faced rockfill dam to near-fault pulse-like ground motions

被引：0
|
作者：
Zou D. [1 ,2 ]
Han H. [1 ]
Kong X. [1 ,2 ]
Zhou Y. [1 ,2 ]
机构：
[1] State Key Laboratory of Coastal & Offshore Engineering, Dalian University of Technology, Dalian
[2] School of Hydraulic Engineering, Dalian University of Technology, Dalian
来源：
Kong, Xianjing (kongxj@dlut.edu.cn) | 1600年 / International Research and Training Center on Erosion and Sedimentation and China Water and Power Press卷 / 48期
关键词：
Concrete-faced rockfill dam; Near-fault; Pulse-like ground motions; Seismic response;
D O I：
10.13243/j.cnki.slxb.20160630
中图分类号：
学科分类号：
摘要：
An increasing number of high rockfill dams are constructed and planned in the western region, and most of them are situated near the seismic fracture belt. With the increase of high dams, the probability of encountering near-field earthquake is increased, and the seismic response of dams to near-field ground motions should be studied urgently. In this paper, ten near-fault ground motions are selected from Jiji Earthquake occurred in Taiwan, and the numerical results of the dam under two types(pulse-like and non-pule) of earthquake records are compared, including acceleration, horizontal displacement of the rockfill and lop-direction tensile stress of the concrete face slab of concrete-faced rockfill dam(CFRD). It is pointed out that horizontal displacement of the rockfill and lop-direction tensile stresses to pulse-like near-fault ground motions are significantly greater than that to non-pulse ground motions. Meanwhile, pulse-like effect grow along with the increase of PGV/PGA(peak ground velocity/peak ground acceleration). Therefore, the special research should be done on the seismic response of a concrete-faced rockfill dam to pule-like ground motions. It is necessary to evaluate comprehensively the security and ultimate aseismic capacity of rockfill dams. © 2017, China Water Power Press. All right reserved.
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页码：78 / 85
页数：7
相关论文
共 9 条
  • [1] Yang D., Wang W., Nonlocal period parameters of frequency content characterization for near-fault ground motions, Earthquake Engineering and Structural Dynamics, 41, pp. 1793-1811, (2012)
  • [2] Malhotra P.K., Response of buildings to near-field pulse-like ground motions, Earthquake Engineering and Structural Dynamics, 28, pp. 1309-1326, (1999)
  • [3] Bayraktar A., Turker T., Akkouse M., Et al., The effect of reservoir length on seismic performance of gravity dams to near-and far-fault Ground motions, Nat. Hazards, 52, pp. 257-275, (2010)
  • [4] Huang J., Earthquake damage analysis of concrete gravity dams: Modeling and behavior under near-Fault seismic excitations, Journal of Earthquake Engineering, 19, 7, pp. 1037-1085, (2015)
  • [5] Yang D.X., Pan J.W., Li G., Non-structure-specific intensity measure parameters and characteristic period of near-fault ground motions, Earthquake Engineering and Structural Dynamics, 38, 11, pp. 1257-1280, (2009)
  • [6] Yang D., Pan J., Li G., Non-structure-specific intensity measure parameters and Characteristic period of near-fault ground motions, Earthquake Engineering and Structural Dynamics, 38, pp. 1257-1280, (2009)
  • [7] Loh C.H., Wan S., Liao W.I., Effects of hysteretic model on seismic demands: consideration of near-fault ground motions, The Structural Design of Tall Buildings, 11, pp. 155-169, (2002)
  • [8] Goodman R.E., Taylor R.L., Brekke, Et al., A model for the mechanics of jointed rock, Journal of Soil Mechanics and Foundations Division, ASCE, 94, SM3, pp. 637-659, (1968)
  • [9] Hardin B.O., Drnevich V.O., Shear modulus and damping in soils: Design equations and curves, Journal of Soil Mechanics and Foundations Division, 98, 7, pp. 667-692, (1972)
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