مروری جامع بر فناوری‌های پیشرفته مقاوم‌سازی ستون‌های بتن مسلح فاقد محصورشدگی جانبی
الموضوعات : آنالیز سازه - زلزله
محمدرضا شکرزاده
1
,
مهدی شریفی
2
,
امیر جعفری
3
,
محمد عیسی محمد دوست
4
,
محمد حسام طاهری
5
1 - گروه عمران دانشگاه آزاد اسلامی واحد علوم وتحقیقات تهران
2 - استادیار گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه قم، قم، ایران
3 - گروه مهندسی عمران، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
4 - گروه مهندسی عمران، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران،
5 - گروه مهندسی عمران، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران
الکلمات المفتاحية: محصورشدگی فعال, محصورشدگی غیرفعال, الیاف پلیمری تقویت‌شده, آلیاژهای حافظه‌دار,
ملخص المقالة :
این مقاله به مروری جامع بر فناوری‌های پیشرفته مقاوم‌سازی ستون‌های بتن مسلح فاقد محصورشدگی جانبی می‌پردازد. هدف اصلی، بررسی و تحلیل روش‌های نوین مقاوم‌سازی مطرح‌شده در ادبیات فنی، ارزیابی عملکرد آن‌ها و تبیین مزایا، محدودیت‌ها و کاربردهای هریک از روش‌ها است. در ابتدا، اصول و ویژگی‌های دو رویکرد اصلی محصورشدگی فعال و غیرفعال مورد بررسی قرار گرفته و در ادامه، روش‌های مرسوم تقویت با الیاف پلیمری تقویت‌شده (FRP)، روش نزدیک به سطح (NSM) و همچنین استفاده از آلیاژهای حافظه‌دار (SMA) تشریح شده‌اند. مقاله با تمرکز بر روش‌های ترکیبی و ارائه تحلیل تطبیقی از منظر عملکرد لرزه‌ای، شکل‌پذیری، ظرفیت باربری و دوام، چارچوبی کاربردی برای انتخاب مناسب‌ترین راهکار مقاوم‌سازی ارائه می‌دهد. یافته‌های این مرور می‌تواند مبنای تصمیم‌گیری مهندسان سازه در پروژه‌های مقاوم‌سازی باشد.
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