کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
265698 504323 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Base geometry influence on impact load failure of a traffic signal pole
ترجمه فارسی عنوان
تأثیر هندسه پایه بر شکست بار تأثیر یک قطب سیگنال ترافیک
کلمات کلیدی
قطب سیگنال ترافیک؛ بارگذاری ضربه؛ روش اجزای محدود؛ شبیه سازی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی


• Simulated bus impacting traffic signal pole in 3D finite element analysis.
• Simulations of varying thicknesses of pole or height of back-up ring.
• Failure occurs at high stress concentration at top height of inner back-up ring.
• Failure predicted to occur at point of impact with greater back-up ring height.

A galvanized tapered steel traffic signal pole impacted by a flat-front school bus was found not to break away at the base anchors bolts, but instead fail within the pole tube at a unique height associated with an inner back-up ring component. This failure was simulated with a 3D finite element model. The model was also used to investigate deformation and failure for various front bus shapes, pole thicknesses, and inner back-up ring heights. A higher back-up ring was found to delay failure at the point of impact, but in every case, the traffic signal pole always failed from the bus impact and associated impact load.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 123, 15 September 2016, Pages 482–489
نویسندگان
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