고반사 커튼월 건물의 직사일광 반사영역 산정

Abstract

This study presents a computer-aided visualization of the influence of reflected sunlight from glass curtain wall buildings. A reflection glare area is proposed as a performance index in the evaluation of reflection glare. A reflection glare area is conducted through the computer simulation of a 1 × 1 × 1 test model with four facades made by reflective material. The model is used to reference the horizontal area that would receive reflection in order to provide the comparison base of evaluation. A reflection glare area is smaller at the summer solstice than at the spring or autumnal equinox. The reflection glare area is compared at different angles of orientation of walls and different ratio of the width, the length and the height. In order to reduce reflection glare area, a passive design approach was applied by rotating plans to evaluate how the orientation of the facade would affect reflected glare. The simulation enabled design evaluation, with an inspection above normal eye level and in a broader area, than that which normally could be achieved in a site survey at a pedestrain's or a driver's level. The computer simulation verified the influence of reflection on the urban environment by using a time-based record.