INELASTIC SEISMIC RESPONSE OF R/C FRAME STRUCTURES TO NEAR FAULT EXCITATIONS
سال انتشار: 1386
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,642
فایل این مقاله در 12 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
SEE05_526
تاریخ نمایه سازی: 25 شهریور 1385
چکیده مقاله:
Near-fault ground motions are characterized by a large high-energy pulse. These motions, which are particular to the forward direction, are mostly oriented in a direction perpendicular to the fault, causing the fault-normal component of the motion to be more severe than the fault parallel component. The near fault ground motions come in large varieties and impose high demands on structures compared to “ordinary” ground motions. The main objective of this paper is to acquire the knowledge on the effects of near-fault ground motions on the response of R/C frame structures. To achieve this goal a set of generic R/C frame structures with different stories are developed. The frame models are designed according to the “Weak beam- Strong column” strategy, and members strength are tuned such that simultaneous yielding occurs at the beam ends (and the column bases) under the SRSS shear force pattern. Performing some nonlinear time history analyses, the results showed that the near fault earthquake presents much more damage than those far-field earthquakes. The inelastic dynamic responses to both near-fault records and basic pulses demonstrated that structures with a fundamental period greater than the pulse period respond very differently than shorter period structures. For the frame structures with a period longer than the pulse period, the distribution of story shear forces over the height of the structure differ significantly from the design distribution and causes early yielding in the middle stories. But for the frame structures with a period shorter than the pulse period the distribution of story shear forces over the height of the structure is relatively close to the design distribution and early yielding in bottom stories is expected.
نویسندگان
Halabian
Assistant Professor, Faculty of Civil Engineering, Isfahan University of Technology, Isfahan, Iran
Doostmohammadi
Graduate Research Assistant, Faculty of Civil Engineering, Isfahan University of Technology, Isfahan, Iran
مراجع و منابع این مقاله:
لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :