کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6774310 | 1431992 | 2018 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Headed Bar Connections Between Precast Concrete Elements: Design Recommendations and Practical Applications
ترجمه فارسی عنوان
اتصالات سر شاخه ای بین عناصر بتنی پیش ساخته: توصیه های طراحی و برنامه های کاربردی
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کلمات کلیدی
بتن پیش ساخته، تقویت سر. طول لبه، استراحت و کراوات، تجزیه و تحلیل عنصر نهایی خطی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
The paper provides an overview of research into the design and behaviour of joints between precast concrete elements in which continuity of reinforcement is achieved through overlapping headed bars, allowing very short lap lengths. A series of tensile and flexural tests were carried out on joints with lapped headed bars of 25â¯mm diameter with 70â¯mm square heads and measured yield strength of 530â¯MPa. The tests studied the influence on joint behaviour of joint concrete strength, transverse reinforcement, geometry, and out-of-plane tolerances. Observations from tests and numerical analysis were used to develop design procedures for headed bar joints based on strut-and-tie modelling and the upper bound theorem of plasticity respectively. A recently completed project using headed bar joints demonstrates the benefits of using this system in precast concrete construction. The potential for further savings in costs and labour when adopting design recommendations stemming from this research is also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Structures - Volume 15, August 2018, Pages 162-173
Journal: Structures - Volume 15, August 2018, Pages 162-173
نویسندگان
Jean Paul Vella, Robert L. Vollum, Raj Kotecha,