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Wind Effects on Buildings: Database Assisted Designs

Introduction Increased computational power and major advances in pressure measurement capabilities led to the development of the database-assisted design (DAD) concept. DAD represents a unified framework for analysis and design of buildings for wind loads that makes direct use of pressure time histories measured at a large number of pressure taps on one or more wind tunnel models. Local climatological information on extreme wind speeds and their direction-dependence can be used in conjunction with the measured pressures to obtain estimates of peak wind effects with specified return periods for use in structural design. Wind effects of interest may include internal forces and bending moments, demand/capacity ratios, or deflections and accelerations. Through direct use of measured pressures, rigorous accounting for wind directionality, and accurate modeling of structural dynamics for buildings, DAD enables more accurate estimation of peak wind effects than is allowed by simplified procedures in current use, thus facilitating more risk-consistent designs.

More detailed discussion of database-assisted design software can be found in NIST Technical Note 2000: Database-Assisted Design and Equivalent Static Wind Loads for Mid- and High-Rise Structures: Concepts, Software and User's Manual (PDF format).

Rigid and Flexible Buildings Database Assisted Design The following sites contain Matlab software (and associated documentation), pressure databases, and sample wind data sets for several types of buildings.
  • Wind Effects on Rigid Buildings

  • Wind Effects on Flexible Buildings
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Date created: 11/30/2018
Last updated: 04/10/2019
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