ویژگیهای لرزه ای مدل جدید ساختار فضایی دیوار برشی
ترجمه نشده

ویژگیهای لرزه ای مدل جدید ساختار فضایی دیوار برشی

عنوان فارسی مقاله: برآورد تجربی از ویژگیهای لرزه ای مدل جدید ساختار فضایی دیوار برشی پیش ساخته
عنوان انگلیسی مقاله: Experimental estimation of seismic properties of new precast shear wall spatial structure model
مجله/کنفرانس: سازه های مهندسی - Engineering Structures
رشته های تحصیلی مرتبط: مهندسی عمران
گرایش های تحصیلی مرتبط: سازه، زلزله، مدیریت ساخت
کلمات کلیدی فارسی: پیش ساخته، دیوار برشی ، اتصال تزریق شده، عملکرد لرزه ای ، مدل فضایی
کلمات کلیدی انگلیسی: Precast، Shear wall، Grouted connection، Seismic performance، Spatial model
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journals List - JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.engstruct.2018.12.096
دانشگاه: School of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, China
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 3/604 در سال 2018
شاخص H_index: 114 در سال 2019
شاخص SJR: 1/628 در سال 2018
شناسه ISSN: 0141-0296
شاخص Quartile (چارک): Q1 در سال 2018
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 21
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: E11509
رفرنس: دارای رفرنس در داخل متن و انتهای مقاله
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Test background


3- Experimental test results


4- Conclusions


References

نمونه متن انگلیسی مقاله

Abstract


Effective seismic properties are a basic requirement in precast shear wall applications. Therefore, this study focuses on the evaluation and improvement of precast shear wall seismic properties using the new pore-forming grouted connector with welded closure confinement steels (NPGCS) developed in previous research. The NPGCS connector reliability was verified and the seismic properties of the NPGCS spatial structure model were evaluated by carrying out a low cyclic reversed lateral loads experimental test on the NPGCS precast shear wall spatial structure model containing superposed connecting beams and precast shear walls, which were selected from a practical high-rise precast residential building. According to the testing results of the crack distribution and component failure modes, the superposed connecting beam properties were weak, and damaged early in the shear failure mode, while the precast shear walls cracked after the steel bars in the superposed connecting beams yielded. Furthermore, the failure mode indicated that the NPGCS connection applied in this spatial model is reliable, while two new weak sections were proven to exist at the connector ends. Together with the precast joint interface slip, the dowel shear action is demonstrated to be harmful to the joint interface properties. Additional seismic parameters, namely capacity, ductility, stiffness and energy consumption, were used to complete the evaluation of the seismic properties of the NPGCS spatial structure model. Overall, although the NPGCS spatial model ductility is low, the strengths are high, leading to continued effective energy consumption properties, which indicates favourable seismic properties of the NPGCS spatial structural model.


Introduction


Precast technologies have made substantial advances in industrial production, environmental protection and high mechanical reliability, among others. However, precast technologies are still limited in terms of extensive application in China, for the two following reasons: (1) as most Chinese territories are in seismic areas, stricter seismic design requirements exist; and (2) owing to the high population density in south-eastern China, most Chinese residential buildings are high-rise shear wall structures with 20 to 33 floors, which drastically enlarge the seismic loads [1]. In recent years, numerous new types of steel bar connectors [4–12] and testing technologies [13–16] have been developed based on grouted connectors [2] and inherited from the Precast Seismic Structural System (PRESSS) programme connectors [3]. Figs. 1 and 2 depict two typical grouted connectors that are widely used in China. Although these new grouted precast connectors are capable of providing very high connector performance, special manufacturing technologies are required, such as stressing in unbounded pre-stressed connectors [17] and steel sleeves in grouted connectors. All of these special manufacturing technologies will increase the cost and dramatically limit the application of precast technologies.

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