نویسنده
B. M a z l o o m F a z e l
;
R. Sāl eh J a l a l i
تاریخ انتشار
1396-03
موضوع
با این کار غیرممکن، از بین نرود
نوع
دوره ای
زبان
فارسی
دیجیتال
بله
نسخه خطی
خیر
کتابخانه
دانشگاه تورنتو
شناسه دارایی کتابخانه
ISSN: 2676-4768, EISSN: 2676-4776, DOI: 10.24200/j30.2017.1122
شماره ثبت
cdi_doaj_primary_oai_doaj_org_article_a804c07d4e3d4f67bf540356aba6dce1
محل کتابخانه
دایرکتوری DOAJ از مجلات دسترسی آزاد
تاریخ
1396-03
یادداشتها
من در این مورد، یک مقدار از من، 3-2، یک ساعت 3 و یا نه؟ components of fault-normal pulse and fault-parallel displacement with different magnitudes and time lags, is considered. Each story of the buildings consists of a rigid beam connected to two axially rigid mass-less columns by nonlinear rotational springs and linear نادیده گرفته می شود. To determine the pounding force, the non-linear viscoelastic model was هوس The ground motion was described by fault-normal pulse and fault-parallel permanent displacement, and their amplitudes and duration were selected consistent with the variables that described near-fault نکات An important physical characteristic of the selected pulse and displacement is large initial velocity associated with onset of these motions, and it is proportional to the stress drop on the fault. It is assumed that the buildings are near the fault, and that the longitudinal axis of the buildings (x-axis) coincides with the radial direction (r-axis) of the propagation of waves from the earthquake source, so the absolute displacements of the bases of columns are different due to the wave passage. The system of equations of motion was solved by the fourth-order Runge-Kutta method due to its self-starting feature and the long-range stability. For the considered model, the results indicate: (1) impact force can lead to من در این مورد هستم. This amplification can be seen predominantly in exterior or end buildings which experience one-sided impacts, compared with interior building which تظاهرات دو وجهی؛ (2) by increasing initial gap size, the maximum impact force will not اتفاقاً. Depending on the period of buildings, initial gap size, and material nonlinearity, the maximum impact force can occur between the left and middle buildings or between the middle and right buildings; (3) for linear material under fault-normal pulse with magnitudes 5, 6, and 7, the expected maximum impact force and the minimum distance required to avoid pounding would be equal to 10, 58, 100 MN, and 10, 30, 50 cm, respectively; (4) for nonlinear material, the corresponding values would be equal to 10, 40, 45 MN، در 10، 20، 30 سانتی متر، قیمت واقعی.
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