تقویت پیوند بیرونی در شیار
ترجمه نشده

تقویت پیوند بیرونی در شیار

عنوان فارسی مقاله: تأثیر روش تقویت پیوند بیرونی در شیار (EBROG) بر رفتار پیوند نوار به بتن
عنوان انگلیسی مقاله: Effect of the EBROG method on strip-to-concrete bond behavior
مجله/کنفرانس: مصالح ساختمانی و ساخت و ساز – Construction and Building Materials
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه
کلمات کلیدی فارسی: تقویت پیوند بیرونی در شیار، پلاستیک تقویت شده با فیبر، همبستگی تصویر دیجیتال، اندازه گیری نمای جانبی
کلمات کلیدی انگلیسی: EBROG، Externally bonded reinforcement on grooves، FRP، DIC، Side-view measurement
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus – Master Journals List – JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.conbuildmat.2019.06.065
دانشگاه: Isfahan University of Technology (IUT), Isfahan, Iran
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 4.686 در سال 2018
شاخص H_index: 129 در سال 2019
شاخص SJR: 1.522 در سال 2018
شناسه ISSN: 0950-0618
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 11
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: بله
آیا این مقاله مدل مفهومی دارد: دارد
آیا این مقاله پرسشنامه دارد: ندارد
آیا این مقاله متغیر دارد: ندارد
کد محصول: E12368
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1-Introduction


2-Experimental program


3-Experimental results


4-Experimental-analytical model for the EBROG method in the case of cohesive failure


5-Conclusion


Declaration of Competing Interest


Acknowledgments


References

نمونه متن انگلیسی مقاله

Abstract


The bond behavior of precured FRP strips and steel plates to concrete substrate was investigated in this research in terms of the load capacity, slip and strain distribution and debonding mechanism. Experimental single lap shear tests were performed and an experimental-analytical model was proposed to determine the bond strength of the FRP-bonded joints. Two strengthening methods, including externally bonded reinforcement (EBR) and externally bonded reinforcement on groove (EBROG), were compared. A two-dimensional digital image correlation (2D-DIC) system was utilized to measure the full-field deformations. Compared to the 90 mm effective bond length for the EBR method, the effective bond lengths for the EBROG method were equal to 145 and 160 mm for 5 5 and 5 10 mm groove cross sections, with 92% and 112% higher loads, respectively. In addition, the results showed that the EBROG method improved the bond resistance of steel-to-concrete joints, but it was not as efficient as it was for the FRP-to-concrete bonded joints. Furthermore, the crack propagation underneath the strip was assessed for the first time for the EBROG method, by using a side-view measurement.


Introduction


FRP composites have been accepted extensively for retrofitting and strengthening civil structures, i.e., buildings and bridges. Proper bond behavior between FRP and concrete is important for the strengthening efficiency. Usually, premature debonding happens before full capacity of the materials is achieved. Therefore, the bond behavior of FRP composites to concrete substrate has been studied over the past decades [1–5]. Experimental, analytical, and numerical research works were performed to evaluate the effect of different parameters [6–10]. Design equations were also proposed to predict bond behavior [1,11–13]. Efforts have been made to postpone debonding, which achieves higher bond resistance. Among those efforts, the EBROG method was introduced as a substitute for the EBR method at Isfahan University of Technology (IUT) [14]. Flexural strengthening of concrete beams with FRP composites using the EBROG method demonstrated a high increase in the beam load capacity and postponed the debonding [14,15]. A comparison of the EBROG method with the conventional EBR technique in the axial/flexural retrofitting of columns, in the shear/flexural strengthening of reinforced concrete beams, and in the repair of beam-column joints was investigated through previous research works [16–21].

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