WIND LOAD AND WIND-INDUCED RESPONSE ESTIMATIONS IN THE RECOMMENDATIONS-FOR-LOADS-ON-BUILDINGS, AIJ-1993

The Recommendations for Loads on Buildings of the Architectural Instit ute of Japan (AIJ) was updated in June 1993. Separate wind-load estima tions are required for main resisting systems and components and cladd ing. Two different calculation formulae are prepared for wind loads of main resisting systems: one is for the horizontal along-wind load and the other for the roof load. Three procedures with different accuracy are able to be selected by designers: the simplified procedure for lo w-rise small buildings, the detailed procedure I for middle-height rig id buildings and detailed procedure II for high-rise flexible building s. Additionally, estimation of the across-wind and torsional loads is necessary for wind-sensitive buildings. Special load estimations for a eroelastic instabilities are also required for particularly slender an d flexible buildings. All provisions are expressed only in equations, without any diagrams.