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首页> 外文会议>World conference on earthquake engineering;WCEE >3D EFFECTS OF DIFFERENTIAL SETTLEMENTS ON A SPECIALMOMENT RESISTING FRAME DUE TO EARTHQUAKE
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3D EFFECTS OF DIFFERENTIAL SETTLEMENTS ON A SPECIALMOMENT RESISTING FRAME DUE TO EARTHQUAKE

机译：地震引起的不同沉降对特殊抵抗力框架的3D影响

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摘要

Nowadays, 3D effect of considering the soil behavior under spread foundations is an important subjectduring the seismic analysis and design process of buildings with tall moment resisting frames. The mainstructural purpose of this importance is the additional bending moments of structural elements originatingfrom differential settlements. In addition in a geotechnical point of view the different values of subgradereaction modulus during the earthquake must be taken into account. Although the importance of such a3D analysis is clear but it's usually neglected because of some calculative limitations of ordinarycomputers and usual numerical soft wares.In this paper, we will show a case study of 3D analysis of soil and structure together to achieve therealistic values of soil reaction modulus. The other main purpose of this study was to see if design forcesof structural elements will change by assuming the soil layers or not. By considering the completegeometry of structure and the equivalent static loading of earthquake, the overall behavior of model willbe discussed and the resulting bending moments in the structure will be illustrated.Subgrade reaction modulus (Ks) will be calculated by dividing the interface area of soil and foundationinto separated zones and using the obtained values of displacement and pressure in each zone.Finally the Ks values will be illustrated and compared with the values obtained from the plate loading testresults.
机译：如今，在具有高抗弯框架的建筑物进行地震分析和设计过程中，考虑地基下土性的3D效果已成为重要课题。这种重要性的主要结构目的是源自不同沉降的结构元件的附加弯矩。此外，从岩土工程的角度来看，必须考虑地震期间路基反应模量的不同值。尽管这种3D分析的重要性很明显，但是由于普通计算机和常用数值软件的某些计算限制而通常被忽略。本文将以土壤和结构的3D分析为例，以实现土壤的真实价值反应模量。这项研究的另一个主要目的是通过假定土层来确定结构元件的设计力是否会改变。考虑结构的完整几何形状和地震的等效静载荷，将讨论模型的整体性能，并说明结构中产生的弯矩。通过将土和土的界面面积除以计算路基反应模量（Ks）。最后，将说明Ks值，并将其与从板载荷测试结果获得的值进行比较。

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