175 / 2022-04-30 14:10:16

Determination of wind pressure tap location for high-frequency pressure integration test of concrete building

Wind load,RC building,High-rise building,High-frequency pressure integration test,Computational Fluid Dynamics,Peak factor

Estimating wind load on the concrete building is important for its durability due to long acting time of wind load which can cause inelastic response or fatigue of concrete elements. High-frequency pressure integration test (HFPI) is widely used as a wind tunnel test method to estimate the wind load on building. But the problem of HFPI is that the number of pressure taps is usually limited due to expensive sensors and small model size. The lack of pressure taps can lead to an error with estimated wind pressure/load at critical location. This study investigates the effect of the location of pressure taps on the accuracy of HFPI result with a case study on the reinforced concrete (RC) building. Computational fluid dynamic (CFD) simulation is applied to obtain wind pressure data for a large number of pressure tap locations. Response of RC building is analyzed with integrated wind load by 4 pressure tap selection cases. Then, the peak response based on the Davenport peak factor method for each selection case were compared with those from all pressure taps selected to check the accuracy.