Equivalent static wind loads on low-rise buildings based on full-scale pressure measurements

Xinzhong Chen, Nan Zhou

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

This paper addresses the modeling of equivalent static wind loads (ESWLs) on low-rise buildings based on full-scale pressure measurements. The wind load effects of different building frames under alongwind excitations are quantified and compared with those based on the wind loads specified in ASCE 7-05 to examine the adequacy of current design wind load. The ESWLs causing different peak wind load effects of building frames are investigated using a number of approaches, which include the gust response factor (GRF), gust loading envelope (GLE) and load-response-correlation (LRC) approaches. This investigation points out the challenges faced in seeking advanced ESWLs on low-rise buildings which are physically meaningful and insensitive to individual response. Finally, a new approach for modeling ESWLs based on the proper orthogonal decomposition of wind loading field is proposed. The new approach provides a set of ESWLs associated with a small number of important loading modes which are independent of individual response and structural systems, and is able to give accurate prediction of all responses. The proposed approach offers a physically meaningful and convenient modeling of wind loads on low-rise buildings with great potential of design applications.

Original languageEnglish
Pages (from-to)2563-2575
Number of pages13
JournalEngineering Structures
Volume29
Issue number10
DOIs
StatePublished - Oct 2007

Keywords

  • Building
  • Building code
  • Full-scale pressure measurement
  • Low-rise
  • Wind
  • Wind load

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