For the reason of economy, farmers and structural engineers prefer the vinyl house frame members that have the lightest cross sections. Therefore, in order to reach this aim, rod bracing system is the best method for multiple vinyl house frames. In this study, wire rods (tension members) are used to be bracing members in multiple vinyl house frames. The effects of additional wire rods in the frames are investigated by the variations of the bending moments, axial forces, displacements and combined stresses in the main frames that are reinforced by different shapes of rod bracing system. Vinyl house frames are usually made by steel pipe members and collapsed by the excessive wind and snow loads. Two kinds of bracing models are used for wind and snow loads separately in this study. The effective bracing models for each load are finally figured out.
목차
Abstract 1. 서론 2. 강선보강 비닐하우스 구조체의 형태 3. 하중의 계산 3.1. 적설하중의 계산 3.2. 풍하중의 계산 4. 보강방법의 비교 4.1. 적설하중이 작용하는 연동형 골조 4.2. 풍하중이 작용하는 연동형 골조 5. 결론 참고문헌