Reliability Assessment of Low-Rise Roof Structures Under Wind Loads in the Southern Region of Vietnam

Low-rise buildings are common types of construction in the Southern region of Vietnam, which have from one to three stories and one or two sloped roofs. The roofs usually are covered with corrugated metal sheets roofs, and purlins are cold-formed steel. In this region, most people have limited economic conditions, and then they build houses by traditional methods based on experience. Therefore, many buildings do not comply with constructed standards, which will affect structural safety. This southern region is considered to be less affected by storms. However, in the rainy season (from August to December), high winds often appear and cause significant damage to the roofs of buildings. Therefore, in this study, the roof structure will be analyzed using the reliability theory. The author uses the Monte Carlo method to simulate random design parameters such as wind load, steel strength, and cross-sectional dimensions. The analysis results will show the safety level of the roof structure according to random variables. From this, the necessary recommendations are proposed to users and construction designers.