A stochastic approach for the generation and combination of vertical and horizontal strong ground motion

被引:0
作者
Laudani, Rossella [1 ]
机构
[1] Univ Messina, Dept Engn, Messina, Italy
关键词
Stochastic ground motion simulation; Point-source model; Vertical and horizontal seismic components; Filtered seismic excitation; EARTHQUAKE; FAULT; ACCELEROGRAMS; ATTENUATION; SIMULATION; COMPONENT; SPECTRA; ARRAY; SV;
D O I
10.1016/j.soildyn.2024.108933
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
Damage to structures during near-fault earthquakes often indicates that the vertical component was larger than what is usually considered in seismic design. Commonly, the vertical component of seismic ground motions is associated with the P-wave. In contrast, the horizontal seismic ground motions' component is usually related to the arrival of the S-wave. However, findings of recent near-fault events indicate that both the horizontal and the vertical motions are a mixture of S and P-waves. Therefore, the need to generate three-component artificial accelerograms for structural design arises. This paper proposes a double aim: starting from the well-noted Snell's law, a physical explanation of the mixture of S and P-waves is outlined. Then, a novel integrodifferential filter system for the stochastic simulation of the three components of strong motion is presented. The proposed study is applied to some theoretical applications as well as to two real Italian seismic events.
引用
收藏
页数:16
相关论文
共 54 条
  • [1] Aki K., 1966, B EARTHQ RES I TOKYO, V44, P73
  • [2] Aki K., 2002, Quantitative Seismology
  • [3] Scaling of Vertical Component of Seismic Ground Motion
    ALMahdi, Fikrat
    Fahjan, Yasin
    Dogangun, Adem
    [J]. ALEXANDRIA ENGINEERING JOURNAL, 2020, 59 (05) : 3827 - 3845
  • [4] Ambraseys NN, 1996, EARTHQUAKE ENG STRUC, V25, P401, DOI 10.1002/(SICI)1096-9845(199604)25:4<401::AID-EQE551>3.0.CO
  • [5] 2-B
  • [6] Complexity of the Mw 6.3 2009 L'Aquila (central Italy) earthquake: 2. Broadband strong motion modeling
    Ameri, G.
    Gallovic, F.
    Pacor, F.
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2012, 117
  • [7] Anil K., 2013, CHOPRA DYNAMICS STRU
  • [8] [Anonymous], 2000, Prestandard and Commentary for the Seismic Rehabilitation of Buildings
  • [9] Properties of vertical ground motions
    Beresnev, IA
    Nightengale, AM
    Silva, WJ
    [J]. BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, 2002, 92 (08) : 3152 - 3164
  • [10] Boore D.M., 1997, Seismol. Res. Lett, V68, P128, DOI DOI 10.1785/GSSRL.68.1.128