论文信息 - Database-Assisted Design of Low-Rise Buildings for Wind Loads: Recent Developments and Comparisons with ASCE/SEI 7-05

Database-Assisted Design of Low-Rise Buildings for Wind Loads: Recent Developments and Comparisons with ASCE/SEI 7-05

This paper presents recent progress in the development and implementation of the databaseassisted design (DAD) methodology for low-rise buildings. The DAD methodology involves making direct use of pressure time series measured in the wind tunnel, rather than using simplified wind load cases such as those in ASCE/SEI Standard 7-05. To facilitate more widespread implementation of DAD, an aerodynamic database is being assembled at NIST. Procedures and software have been developed to automate the handling of aerodynamic data in the database, and an interpolation scheme has been developed to enable the use of DAD for cases in which a wind tunnel model with matching dimensions is not available in the database. This paper also presents comparisons of peak bending moments computed using DAD with those resulting from the simplified wind load cases in ASCE 7-05. The agreement is found to be quite good for bending moments that were considered in the development of the simplified load cases used in ASCE/SEI 7-05. However, when an intermediate location is considered, the maximum bending moment from DAD is found to be more than twice as large as that from ASCE/SEI 705, indicating unconservatism.

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