The Investigation of Different Groove Angles and Thickness Influenced of Steel Structure Welding

• Main Authors: Chih-chung Shen, 沈志忠
• Other Authors: Jun-Kai Lu
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/54643739912367517035

碩士 === 國立屏東科技大學 === 土木工程系所 === 102 === This investigation provided some welding test for real-sized BOX columns fabricated into small pieces with different groove angles. Eighteen SN490B steel plates as specimens consist of single-groove weld (30°), single-groove weld (45°) and double-grove weld (15°) are analyzed, welded with different thickness specimens, and applied respectively in the metallographic test, standard tensile test, and servo control test. This investigation used the above specimens to make metallographic, standard elongation, and tensile test to explored how different groove angles and thickness influenced the time consumption, quantities of weld, economic performance, and mechanical change after welding. The test result shows that when the thickness is more then 40 mm, the welding comprises double-grove weld (15°) provide the most economical efficiency. The specimens were ruptured in the base material and fused completely in the metallographic test.