عملکرد لرزه ای و تغییر شکل قاب
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عملکرد لرزه ای و تغییر شکل قاب

عنوان فارسی مقاله: ارزیابی عملکرد لرزه ای مبتنی بر تغییر شکل قاب های RECC بر اساس روش IDA
عنوان انگلیسی مقاله: Evaluation of deformation-based seismic performance of RECC frames based on IDA method
مجله/کنفرانس: ساختارهای مهندسی – Engineering Structures
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه، زلزله
کلمات کلیدی فارسی: سیمان مهندسی شده تقویت شده، کامپوزیت (RECC)، قاب ها، عملکرد لرزه ای، طراحی لرزه ای مبتنی بر عملکرد (PBSD)، تجزیه و تحلیل دینامیک افزایشی
کلمات کلیدی انگلیسی: Reinforced engineered cementitious، composites (RECC)، Frames، Seismic performance، Performance-based Seismic Design (PBSD)، Incremental Dynamic Analysis (IDA
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.engstruct.2020.110499
دانشگاه: School of Civil Engineering, Southeast University, Nanjing 211189, China
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2020
ایمپکت فاکتور: 3.604 در سال 2019
شاخص H_index: 114 در سال 2020
شاخص SJR: 1.628 در سال 2019
شناسه ISSN: 0141-0296
شاخص Quartile (چارک): Q1 در سال 2019
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 13
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
آیا این مقاله مدل مفهومی دارد: ندارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E14985
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


۱٫ Introduction


۲٫ Computational modeling


۳٫ Analytical results


۴٫ Conclusion


CRediT authorship contribution statement


Declaration of Competing Interest


Acknowledgement


References

نمونه متن انگلیسی مقاله

Abstract


Engineered Cementitious Composites (ECC) is a typical High Performance Fiber Reinforced Cement-based Composite (HPFRCC), which possesses the characteristics of ultra-high tensile ductility and energy dissipation capacity. One of the potential applications of ECC is to replace conventional concrete in the seismic resistant structures. However, to date, the investigation on seismic performance of ECC at the structural level is still limited. This paper aims at evaluating the seismic performance of RECC frame on the basis of Performance-based Seismic Design (PBSD) concept and discussing the feasibility and practicability of applying ECC in structures for improving the seismic performance. The non-linear behavior of ECC material was simulated especially considering the strain hardening behavior in tension. By using the Incremental Dynamic Analysis (IDA) method, three types of frames, consisting of a normal RC frame, a RECC frame and an RECC/RC composite frame, were analyzed to evaluate the structural dynamic behavior of the frames. Comparative studies on the deformation limit states at five levels of seismic performance for these three different types of frames validated that RECC frames have superior deformation capacity comparing to traditional RC frames under high intensity earthquake. Comparison results also indicated that rationally applying ECC in key region of the structures can not only improve the seismic performance and deformation capacity of structures but also control the construction cost.


Introduction


Engineered Cementitious Composites (ECC), generally consists of cement, mineral admixture, fine aggregates, water, admixtures which are used to enhance the strength and workability, less than 2% volume of short fibers, was first developed by Li et al. [1–۳] based on the basic principle of micromechanics and fracture mechanics. Different from normal concrete with brittle tensile behavior and crack localization, ECC exhibits multiple fine cracks and strain-hardening behavior under tension. The opening of each crack is usually controlled to be less than 100 μm, and the ultimate tensile strain can reach over 3.0% [4–۶]. A typical tensile stress-strain relationship of ECC is shown in Fig. 1. The ultra-high tensile ductility and energy dissipation capacity of ECC just remedy the shortcomings of concrete and thus attract the attentions of many researchers and designers around the world. ECC is being considered for replacing conventional concrete in structures in high-intensity earthquake regions [7–۹]. Research efforts have focused on the seismic related behavior of ECC [10–۱۸], however, the researches with respect to ECC are mostly limited to the material level and component level, while the investigation focusing on ECC at structural level is still at the preliminary stage. Gencturk et al. [19–۲۰] established a constitutive model for ECC within Zeus-NL, and a two-story-two-span frame was simulated with the proposed model and tested under dynamic loading.

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