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首页> 外文期刊>Pure and Applied Geophysics >Ground Motion in Kuwait from Regional and Local Earthquakes: Potential Effects on Tall Buildings
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Ground Motion in Kuwait from Regional and Local Earthquakes: Potential Effects on Tall Buildings

机译：来自区域和地方地震的科威特地面运动：高层建筑的潜在影响

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摘要

In recent years, the construction of tall buildings has been increasing in many countries, including Kuwait and other Gulf states. These tall buildings are especially sensitive to ground shaking due to long period seismic surface waves. Although Kuwait is relatively aseismic, it has been affected by large (M-w6) regional earthquakes in the Zagros Fold-Thrust Belt (ZFTB). Accurate ground motion prediction for large earthquakes is important to assess the seismic hazard to tall buildings. In this study, we first analyze the observed ground motions due to two earthquakes widely felt in Kuwait: the 08/18/2014 M-w 6.2 earthquake, 360km NNE of Kuwait City, and the 11/12/2017 M-w 7.3 earthquake, 642km NNE of Kuwait City. The peak spectral displacement periods of the ground motion from the 08/18/2014 M-w 6.2 earthquake matched well with the ambient vibration spectra of the tallest buildingthe Al-Hamra Tower. We calculate the ground motions from potential regional and local earthquakes. We use a velocity model obtained by matching the observed seismograms of the 2014 and 2017 earthquakes. We calculate ground motions in Kuwait due to a regional M-w=7.5 earthquake, and a local M-w=5.0 earthquakes. Our study shows that a significant source of seismic hazard to tall buildings in Kuwait comes from the regional tectonic earthquakes. However, local earthquakes have the potential to generate high peak ground accelerations (98cm/s(2)) close to their epicenters.
机译：近年来，许多国家的高层建筑的建设在内，包括科威特和其他海湾国家。由于长期地震表面波，这些高层建筑对地面震动尤为敏感。虽然科威特相对抗遍，但它受到Zagros折叠推力带（ZFTB）的大（M-W＆GT; 6）区域地震的影响。大地震的准确地面运动预测对于评估高层建筑的地震危害非常重要。在这项研究中，我们首先在科威特广泛感受到两次地震所称的观察到的地面运动：08/18/2014 MW 6.2地震，360公里NNE的科威特市，11/12/2017 MW 7.3地震，642km NNE科威特城。从08/18/2014 M-W 6.2地震的地面运动的峰值光谱位移周期与最高建筑物的Al-Hamra塔的环境振动光谱相匹配。我们计算潜在区域和地方地震的地面运动。我们使用通过匹配2014年和2017年地震的观察到地震图获得的速度模型。由于区域M-W = 7.5地震，以及局部M-W = 5.0地震，我们计算科威特的地面运动。我们的研究表明，科威特高层建筑的地震危害的重要来源来自地区构造地震。然而，地方地震有可能产生高峰接地加速度（98cm / s（2））靠近其震中。

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  • 来源
    《Pure and Applied Geophysics》 |2018年第12期|共13页
  • 作者

    Gu Chen; Prieto German A.; Al-Enezi Abdullah; Al-Jeri Farah; Al-Qazweeni Jamal; Kamal Hasan; Kuleli Sadi; Mordret Aurelien; Buyukozturk Oral; Toksoz M. Nafi;

  • 作者单位

    MIT Dept Earth Atmospher &

    Planetary Sci Earth Resources Lab Cambridge MA 02139 USA;

    Univ Nacl Colombia Fac Ciencias Dept Geociencias Bogota Colombia;

    Kuwait Inst Sci Res Kuwait Kuwait;

    Kuwait Inst Sci Res Kuwait Kuwait;

    Kuwait Inst Sci Res Kuwait Kuwait;

    Kuwait Inst Sci Res Kuwait Kuwait;

    MIT Dept Earth Atmospher &

    Planetary Sci Earth Resources Lab Cambridge MA 02139 USA;

    MIT Dept Earth Atmospher &

    Planetary Sci Earth Resources Lab Cambridge MA 02139 USA;

    MIT Dept Civil &

    Environm Engn Lab Infrastruct Sci &

    Sustainabil 77 Massachusetts Ave Cambridge MA 02139 USA;

    MIT Dept Earth Atmospher &

    Planetary Sci Earth Resources Lab Cambridge MA 02139 USA;

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  • 正文语种 eng
  • 中图分类 地球物理学;
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