Numerical Studies on the Combined Effects of the Measures to Prevent Fire Vertical Spread along the Exterior Wall in High-rise Residential Buildings

Fire plume spilled from the opening in the exterior wall of the building is the main reason which can lead to the vertical spread of the fire in high-rise buildings. Some measures which can prevent the fire spread along the vertical wall should combine the geometry of the openings. Taking a high-rise residential building as an example, the prevention effects of the different horizontal projection widths and spandrel wall heights with different window widths are evaluated by the numerical methods. The relationship between the window width, the spandrel wall height and the balcony length which can prevent fire vertical spread are found. The size and shape of the window should be considered when the horizontal projection and spandrel walls are designed.