کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4928675 | 1432078 | 2017 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Shear buckling and stress distribution in trapezoidal web corrugated steel beams
ترجمه فارسی عنوان
توزیع استحکام برشی و توزیع استرس در تیرهای فولادی موج دار در ورقه های تراپزی
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کلمات کلیدی
پرتو فولادی موج دار، جسورانه، لرزش برشی، تجزیه و تحلیل عنصر محدود، استحکام باقی مانده، مدل تحلیلی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Due to their lightweight and superior load carrying capacity, corrugated web steel beams (CWSBs) have gained popularity in the last few decades. CWSBs are known to fail at much higher loads compared to stiffened flat web beams. To understand their shear response, a series of three-point load tests were performed on five shear-critical trapezoidal corrugated web beams. The test results confirmed the existence of the three shear buckling modes of failure: local, global, and interactive. In addition, all tested beams were observed to have a residual strength that is about half of their ultimate load carrying capacity regardless of the shear buckling mode. Results of the nonlinear finite element analysis showed that the shear stress is at its maximum and uniformly distributed throughout the web until buckling, afterwards, it decreases and its distribution is uneven while the entire resistance is provided by the increased tensile stress. Furthermore, stocky corrugated webs were shown to reach shear yield strength. Comparison between existing analytical models for the estimation of shear strength against test data showed that EN-1993-1-5 is accurate and conservative enough for an economic design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 113, April 2017, Pages 13-26
Journal: Thin-Walled Structures - Volume 113, April 2017, Pages 13-26
نویسندگان
Moussa Leblouba, M. Talha Junaid, Samer Barakat, Salah Altoubat, Mohamed Maalej,