Research Progress of Windinduced Internal Pressure in Structures

Abstract:

The study progress of internal pressure governing equation is first summarized from theoretical analysis.Then several main factors that affect windinduced internal pressure including building flexibility,Helmholtz resonant effect,interferer effect and internal partitioning are reviewed,and a comprehensive survey is presented from the aspects of wind tunnel test,field measurement and computational fluid dynamics (CFD) numerical simulation.Description of internal pressure in wind load codes of several main countries is presented too.Finally some limitations in current researches are pointed out by analyzing the problems existed in internal pressure governing equations,influencing factors and research methods,and some recommendations are made for further researches on internal pressure.

Key words:building structure; windinduced internal pressure; wind tunnel test; field measurement; computational fluid dynamics simulation