Pengendalian Defleksi dan Peningkatan Kuat Lentur Profil C dengan Penambahan Batang Vertikal dan Diagonal Menggunakan Sambungan Las

Sari

Lipped channel is one of steel shape often used as a beam, commonly used as a beam on the roof structure. The advantages of this profile is its own relatively light weight. Disadvantages of this profile is the possibility of buckling on the lipped channel. Another disadvantages is the deflection that occurs large enough before the profile permit stress is exceeded. This study aims to overcome the weakness, especially on the deflection side by installing a reinforcement on the lip profile. Reinforcement in the form of reinforcement steel bar with 6 mm diameter mounted varies from the distance and the form of reinforcement. Vertical as well as vertical and diagonal mounting are used to strengthen the profile. Profile connection using welding with 1 point and 2 point welding. Retrofitting can reduce deflection. Welding with 1 weld point is sufficient. Failure of buckling occurs in the reinforcement rod. The lipped channel undergoes a change in shape due to the welding process. The result of modeling with computer program gives significant difference of result compared with experimental.