Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder
المؤلفون المشاركون
Dong, Xu
Li, Shuchen
Deng, Zhenquan
Guo, Jian
Zhou, Haican
المصدر
Advances in Materials Science and Engineering
العدد
المجلد 2017، العدد 2017 (31 ديسمبر/كانون الأول 2017)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2017-11-06
دولة النشر
مصر
عدد الصفحات
10
الملخص EN
The U-shaped girder is a type of open thin-walled structure, which is used in urban rail transit engineering.
Although it employs polypropylene fiber concrete to avoid cracks, the girder is still easier to crack than other traditional structures owing to its special open thin-walled cross section.
In this study, a cracking accident of a U-shaped girder, which happened during the prestressed steel tensioning, was studied by field investigation and mechanical analysis through the finite element (FE) method.
An outline of the cracks was presented.
The nonlinear material properties of the polypropylene fiber concrete and steel were discussed and used in the finite element model.
The effects of the main design parameters, such as the flange slab thickness, anchorage position, and prestressed steel layout, were evaluated based on the results of the FE analysis.
The results indicate that the extremely low rigidity of the web and oversize of the web longitudinal prestressed steels are the main reasons for the cracks.
The risk of cracks can be reduced by increasing the thickness of the flange slab and changing the anchorage position and prestressed steel layout.
Some suggestions are provided for avoiding cracks based on the results of the research.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Dong, Xu& Li, Shuchen& Deng, Zhenquan& Guo, Jian& Zhou, Haican. 2017. Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1124877
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Dong, Xu…[et al.]. Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1124877
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Dong, Xu& Li, Shuchen& Deng, Zhenquan& Guo, Jian& Zhou, Haican. Mechanical and Parametric Analysis of Cracks in Polypropylene Fiber Concrete U-Shaped Girder. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1124877
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1124877
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر