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مهندسی عمران وراه وترابری - ترمیم سریع پل‌ های آسیب‌ دیده بدون بستن راه‌ها با دستاورد دانشمند ایرانی
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مرجع مهندسی عمران و راه و ترابری


تیمی از دانشمندان به رهبری «آرش زاغی» دانش‌آموخته دانشگاه‌های صنعتی شریف و خواجه نصیر طوسی و استادیار دانشگاه کانکتیکات، فولادی با استحکام فوق‌العاده بالا (UHSC) را به عنوان راهی مقرون‌به‌صرفه برای ترمیم پل‌های آسیب‌دیده آزمایش کردند.

به گزارش سرویس علمی ایسنا، بر اساس اعلام امریکا، بالغ بر 30 درصد از 600 هزار پل موجود در ایالات متحده بیش از 50 سال عمر دارند و برای فعال‌نگه‌داشتن آن‌ها باید سالانه حدود 20.5 میلیارد دلار هزینه کرد.

دانشمندان به رهبری پروفسور آرش زاغی، بتنی با استحکام فوق‌العاده بالا را برای ترمیم پل‌ها آزمایش کردند. این بتن، ماده محکمی است که برای ترمیم هر چه سریع‌تر پل‌ها با هزینه‌های پایین کارآمد است.

به گفته زاغی، استادیار مهندسی عمران و بازرس ارشد این تحقیق، این شیوه ترمیم، پتانسیل حل مشکلات بحرانی پل‌ های آسیب‌دیده فولادی در سراسر امریکا را به شیوه‌ای خلاقانه دارد.

وی ادامه داد: با تثبیت‌شدن این شیوه، می‌توان پل‌ ها را با هزینه و زمان کمتر احیا کرد و ایمنی زیرساخت‌های حمل و نقل را افزایش داد.

زاغی و تیم علمی‌اش از بتن با استحکام فوق‌العاده بالا برای ترمیم پل‌های فولادی زنگ‌زده استفاده کردند و این بتن‌ها از پل پشتیبانی می‌کنند.

آسیب‌ به پل‌ها در اثر قرارگرفتن آن‌ها در معرض آب و نمک جاده‌ای است که در طول زمستان به کار می‌رود. آزمایش‌ها نشان می‌دهد شیوه جدید دارای مزیت‌های زیادی است و پل‌هایی که با فولاد با استحکام فوق‌بالا ترمیم شده‌اند، 25 درصد محکم‌تر از زمان آسیب‌دیدگی‌شان هستند.

این روش همچنین نیاز به بستن جاده‌ها و مسیرها را تا حد زیادی کاهش می‌دهد زیرا در این شیوه می‌توان هنگامی که پل فعال است، آن را ترمیم کرد.

منبع:خبرگزاری ایسنا





:: برچسب‌ها: پل , ترمیم سریع پل , دانشگاه کانکتیکات , استحكام , جاده , دانشمند ایرانی ,
ن : نوید
ت : سه شنبه 23 تیر 1394
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