Design And Structural Stability Analysis Of A Tilting Portable Billboard Frame Subjected To Wind Loading

Abstrak

A portable tilting billboard structure is an outdoor information media structure designed to be relocated without using a permanent foundation. The structure configuration, which consists of a large billboard surface and a tilting mechanism, requires consideration of structural stability under wind loading. This study aims to design a portable tilting billboard frame, determine the lateral force caused by wind loading, evaluate structural stability against overturning, and investigate the mechanical response of the structure using Finite Element Analysis (FEA). The structure was designed using three-dimensional modeling in SolidWorks with ASTM A36 Steel as the structural material. The billboard has dimensions of 6 m × 3 m and the total full assembly mass is 5,451.08 kg, including four counterweight units of 250 kg each. The reference wind speed was 25.90 knots or 13.32 m/s. The analysis resulted in a wind pressure of 108.90 N/m² and a total wind force of 1.96 kN acting on a billboard area of 18 m². The stability analysis produced an overturning moment of 10.78 kN·m and a resisting moment of 160.47 kN·m, resulting in an overturning safety factor of 14.89. Furthermore, the CAE simulation using SolidWorks Simulation resulted in a maximum von Mises stress of 44.985 MPa, a maximum displacement of 2.903 mm, and a minimum Factor of Safety of 5.557. These results indicate that the structure has adequate stability against overturning and satisfies the material strength criteria under the analyzed loading condition.. Keywords: portable tilting billboard, wind loading, structural stability, overturning, SolidWorks Simulation.

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