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首页> 外文期刊>Advances in civil engineering >Seismic Response of Steel SMFs Subjected to Vertical Components of Far- and Near-Field Earthquakes with Forward Directivity Effects
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Seismic Response of Steel SMFs Subjected to Vertical Components of Far- and Near-Field Earthquakes with Forward Directivity Effects

机译：远，近场地震垂直分量作用下钢制SMF的地震响应及正向指向性

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摘要

In the near-field earthquake, forward directivity effects cause long-period pulse with a short effective time and a large domain in the velocity time history. This issue increases the ductility needs of structures, and in recent decades, the destructive effects of these kinds of records have been evaluated in comparison with far-field earthquakes. This brings about the necessity to compare a structure's behavior subjected to vertical components of near-field (NF) earthquakes, including forward directivity effects vs. the effects of vertical components of far-field (FF) earthquakes. The present study investigated 3-, 5-, 8-, and 20-story steel moment frames with special ductility (SMF) through which modeling effects of panel zone have been applied, subjected to vertical component of near-field (NF) earthquakes with forward directivity and the vertical component of far-field earthquakes. By investigating the results, it can be clearly seen that the average values of the maximum displacement, shear force of the stories, and the velocity of each story under the impact of the near-field earthquake are greater than the amount of that under the effect of a far-field earthquake. However, this comparison is not valid for the amount of acceleration, axial force, and moments in the columns of the structures accurately.
机译：在近场地震中，前向方向性效应会导致长周期脉冲，且有效时间短且速度时程范围大。这个问题增加了结构的延性需求，近几十年来，与远场地震相比，已经评估了这类记录的破坏性影响。因此，有必要对结构在近场（NF）地震的垂直分量作用下的性能进行比较，包括正向方向性效应与远场（FF）地震的垂直分量的效应。本研究研究了具有特殊延性（SMF）的3层，5层，8层和20层钢制矩型框架，通过它们应用了面板区域的建模效果，并承受了近场（NF）地震的竖向分量，正方向性和远场地震的垂直分量。通过调查结果，可以清楚地看到，在近场地震的影响下，最大位移，层的剪力和每个层的速度的平均值大于该影响下的平均值。一场远场地震。但是，此比较对于结构的圆柱中的加速度，轴向力和弯矩的量无效。

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  • 来源
    《Advances in civil engineering》 |2019年第5期|2647387.1-2647387.15|共15页
  • 作者

    Shahbazi Shahrokh; Mansouri Iman; Hu Jong Wan; Daliri Noura Sam; Karami Armin;

  • 作者单位

    TAAT Investment Grp Tehran 1871713553 Iran;

    Birjand Univ Technol Dept Civil Engn POB 97175-569 Birjand Iran;

    Incheon Natl Univ Dept Civil & Environm Engn Incheon 22012 South Korea|Incheon Natl Univ Incheon Disaster Prevent Res Ctr Incheon 22012 South Korea;

    Univ Sci & Culture Dept Civil Engn Tehran Iran;

    Politecn Milan Dept Civil Environm & Land Management Engn I-20133 Milan Italy;

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