کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6711655 1428720 2018 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temperature effect on the mechanical behavior of glued-in rods intended for the connection of timber elements
ترجمه فارسی عنوان
اثر دما بر رفتار مکانیکی از میله های چسب در نظر گرفته شده برای اتصال عناصر چوب
کلمات کلیدی
میله های چسبدار استحکام باند، درجه حرارت بالا، چوب لمینت چسب، موازی و عمود بر دانه، دمای انتقال شیشه،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The application field of glued-in rods (GiRs) has been extended over the years to include new timber constructions thanks to their high stiffness and to the technical solutions they offer to achieve high mechanical performance. However, the mechanical behavior of GiRs seems to be affected by several parameters, and in particular by temperature changes. This paper presents an experimental investigation on the mechanical behavior of GiRs bonded parallel and perpendicular to wood grain by means of pull-out tests at stabilized temperature and at constant load. In addition, complementary physico-chemical and mechanical characterizations were carried out on the bulk epoxy adhesive which was used for the fabrication of the GiRs specimens, in order to correlate the temperature behavior of the overall GiR connection to that of the polymer adhesive. Results of pull-out tests revealed a gap between experiments performed at stabilized temperature and those at constant load. Such a gap was attributed to physical, chemical and mechanical phenomena occurring in the epoxy resin at high temperature, and highlighted the major influence of the resin glass transition (Tg) of the polymer adhesive on the temperature behavior of the GiR connection.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 186, 20 October 2018, Pages 438-453
نویسندگان
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