کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6714237 1428736 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural behaviour of hardwood veneer-based circular hollow sections of different compactness
ترجمه فارسی عنوان
رفتار سازه ای از توخالی دایره ای بر پایه روکش چوب سخت فشرده سازی متفاوت
کلمات کلیدی
محصولات ساختاری مبتنی بر فویل، بخش های دایره ای توخالی، انعطاف پذیری مقطعی سیاهههای مربوط به کاشت درخت جنگل جوان،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
This paper presents the capacity and structural behaviour of hardwood veneer-based circular hollow sections (CHS) tested in bending, shear and compression. The sections were manufactured from early to mid-rotation (juvenile) Gympie messmate (Eucalyptus cloeziana) plantation thinned logs. In total twenty-one 167 mm Outside Diameter (OD) × 1.2 m long CHS were manufactured in seven sets of three nominally identical sections. Two different wall thicknesses were investigated to produce nine compact and twelve more slender cross-sections. The sections were also manufactured in three different structural grades. A sudden failure mode was observed in the compression zone of the slender sections tested in bending. In compression, the compact sections showed a ductile behaviour, while the slender sections showed a more brittle behaviour, with the sections bursting into longitudinal strips. While a relationship was observed between the bending and compressive capacities, and the structural grade, no such relationship was noticed for the shear capacity. Comparison to steel and concrete sections of similar outside diameter proved that the timber sections are the most efficient in terms of bending and compressive capacity to linear weight ratio. The timber sections fall behind their steel and concrete counterparts in terms of shear efficiency, however they still have enough shear capacity for representative structural applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 170, 10 May 2018, Pages 557-569
نویسندگان
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