مواد و فناوری‌های پیشرفته

مواد و فناوری‌های پیشرفته

بررسی پارامترهای مؤثر در توان نگه‌داری اتصال‌های دوبل چوبی ساخته‌شده با فناوری جوشکاری چوب

نوع مقاله : مقاله کامل پژوهشی

نویسنده
پانته‌آ عمرانی
دانشیار، گروه صنایع چوب، دانشکده‌ی مهندسی عمران، دانشگاه تربیت دبیر شهید رجائی، تهران، ایران
10.30501/jamt.2026.585118.1367
چکیده
یکی از بخش‌های اصلی هر سازه‌ی چوبی اتصال‌های آن است که باید شرایط تحمل بارهای وارده را داشته باشد. جوشکاری چوب فناوری نوینی است که امکان ساخت اتصال‌های چوب با مقاومت قابل‌توجه و بدون استفاده از چسب را فراهم کرده است. بنابراین، هدف از پژوهش حاضر بررسی و مقایسه‌ی توان نگه‌داری اتصال‌های دوبل چوبی ساخته‌شده به روش جوشکاری و روش استفاده از چسب است. در این پژوهش، نوع گونه‌ی عضو اتصال (ممرز و نراد)، نوع اتصال دوبل (اتصال جوشکاری‌شده و اتصال با چسب پلی‌وینیل استات)، قطر دوبل (10 و 12 میلی‌متر) و شکل سطح دوبل (صاف و شیاردار) به‌عنوان متغیر در نظر گرفته شدند. پس از ساخت نمونه‌ها، آزمون توان نگه‌داری دوبل انجام شد. نتایج تجزیه‌ی واریانس نشان داد که اثر مستقل عضو اتصال، نوع اتصال، سطح و قطر دوبل بر توان نگه‌داری دوبل در سطح یک درصد معنی‌دار است. نتایج نشان دادند، در همه‌ی متغیرهای مورد بررسی، توان نگه‌داری اتصال‌های دوبل جوشکاری‌شده بیشتر از اتصال‌های ساخته‌شده با چسب پلی‌وینیل استات بود که این امر نشان‌دهنده‌ی برتری فناوری جوشکاری چوب بر استفاده از این چسب است.
کلیدواژه‌ها
اتصال دوبل
پلی‌وینیل استات
توان نگه‌داری دوبل
جوشکاری چوب
سازه‌های چوبی
موضوعات

عنوان مقاله English

Investigating Effective Parameters on the Withdrawal Resistance of Wooden Dowel Joints Made by Wood Welding Technology

نویسنده English

Pantea Omrani
Associate Professor, Wood Science and Technology Department, The Faculty of Civil Engineering, Shahid Rajaee Teacher Training University, Tehran, Tehran, Iran.
چکیده English

One of the main parts of any wooden structure is its joints, which must meet the requirements for bearing applied loads. Wood welding is a new technology that has made it possible to produce wood joints with considerable strength without the use of glue. Therefore, this research aims to investigate and compare the withdrawal resistance of dowel wood joints made by the welding method and the method using glue. In this research, the species of joint member (Hornbeam and Fir), type of dowel joint (welded joint and joint with polyvinyl acetate glue), dowel diameter (10 and 12 mm), and dowel surface shape (smooth and grooved) were considered as variables. After preparing the specimens, the dowel withdrawal resistance test was performed. The results of the analysis of variance showed that the independent effects of joint member, joint type, surface shape, and dowel diameter on dowel withdrawal resistance were significant at the 1% level. The results showed that, for all studied variables, the withdrawal resistance of welded dowel joints was greater than that of joints made with polyvinyl acetate glue, indicating the superiority of wood welding technology over the use of this glue.

کلیدواژه‌ها English

Dowel Joint
Polyvinyl Acetate
Dowel Withdrawal Resistance
Wood Welding
Wooden Structures
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مواد و فناوری‌های پیشرفته
دوره 15، شماره 2
تابستان 1405

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  • تاریخ پذیرش 0-665 فروردین 786