کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1725473 1520689 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on the structural monitoring and early warning conditions of aging jacket platforms
ترجمه فارسی عنوان
مطالعه بر روی نظارت ساختاری و شرایط هشدار زودهنگام سیستم عامل های ژاکت پیری
کلمات کلیدی
پلت فرم ژاکت ساحلی نظارت ساختاری، شرایط اخطار، کج کیک، عملکرد انتقال بار، فروپاشی ژاکت،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی
In this paper, the structural monitoring methods and early warning conditions were proposed based on the characteristics of the aging jacket offshore platforms, including the monitoring and early warning condition of the displacement, the bearing loads of pile end and the platform subsidence. On the basis of pushover analysis, the curves of base shear force versus deck displacement were drawn. Furthermore, the anticipated risks were classified into three levels due to different deformations in the collapse process; the three level early warning conditions were established. A method of the monitoring of the bearing loads of pile end was put forward, with the calculating of the load transmission function. The early warning condition that the bearing loads of pile end should not exceed half of the ultimate pile capacity was provided based on API RP 2A-WSD. The long-term monitoring method of the platform subsidence was presented based on the calculating of the difference of elevation between any two pile tops. The early warning conditions considering the stress and tilt requirements were established. The monitoring method has been applied to a jacket offshore platform on the South China Sea, and the result illustrates the feasibility of this method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 101, 1 June 2015, Pages 152-160
نویسندگان
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