تحلیل لرزه ای سدهای قوسی

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری بخش مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه شهید باهنر کرمان، کرمان، ایران،

2 استاد بخش مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه شهید باهنر کرمان، کرمان

چکیده

ارزیابی لرزه­ای مناسب مقاومت سدها در برابر شکست، می­تواند موجب جلوگیری از خسارات مالی و جانی فراوانی گردد که لازمه آن برآورد دقیق نیروها خصوصا فشار هیدرودینامیک می­باشد. روش هم­هندسی یک چهارچوب تجزیه و تحلیل جدید بوده و در حل مسائل مهندسی گوناگون مورد استفاده قرار گرفته است. در این مقاله سعی بر شبیه­سازی اندرکنش سیال-سازه شده که با استفاده از روش عددی هم­هندسی فشار هیدرودینامیک یک سد قوسی را ارزیابی و نتایج بدست آمده با مدل­های تحلیلی و اجزا محدودی مورد مقایسه قرار گرفته است. جذر میانگین مربعات خطا RMSE بدست آمده برابر با 00216/0 موید این واقعیت است که خطای ناشی از تقریب هندسه با استفاده از روش­های گوناگون منجمله بهبودسازی مرتبه تقریب و اندازه مش­ها به صفر همگرا گردیده است.

کلیدواژه‌ها


عنوان مقاله [English]

Seismic analysis of the arch dams

نویسندگان [English]

  • Emad Addin Amin Abbasi 1
  • Gholam Abbas Barani 2
چکیده [English]

Proper seismic evaluation of dams resistance against breaking, can prevent great financial losses and fatality which is required to precise estimates of forces especially the hydrodynamic pressure. The isogeometric method is a new analysis framework which is used to solve various engineering problems. In this study, it is tried to simulate the fluid-structure interaction and using the isogeometric method to evaluate the hydrodynamic pressure of an arch dam. Results have been compared with the analytical and finite element methods. The resulted Root Mean Square Error (RMSE) equal to 0.00216 confirm the accuracy of isogeometric method.

کلیدواژه‌ها [English]

  • Keyword: Hydrodynamic pressure
  • Fluid-structure interaction
  • Isogeometric analysis

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