Wind-induced dynamic response and its load estimation for structural frames of single-layer latticed domes with long spans

Yasushi Uematsu, Takayuki Sone, Motohiko Yamada, Takeshi Hongo

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The main purpose of this study is to discuss the design wind loads for the structural frames of single-layer latticed domes with long spans. First, wind pressures are measured simultaneously at many points on dome models in a wind tunnel. Then, the dynamic response of several models is analyzed in the time domain, using the pressure data obtained from the wind tunnel experiment. The nodal displacements and the resultant member stresses are computed at each time step. The results indicate that the dome's dynamic response is generally dominated by such vibration modes that contribute to the static response significantly. Furthermore, the dynamic response is found to be almost quasi-static. Then, a series of quasi-static analyses, in which the inertia and damping terms are neglected, is made for a wide range of the dome's geometry. Based on the results, a discussion is made of the design wind load. It is found that a gust effect factor approach can be used for the load estimation. Finally, an empirical formula for the gust effect factor and a simple model of the pressure coefficient distribution are provided.

Original languageEnglish
Pages (from-to)543-562
Number of pages20
JournalWind and Structures, An International Journal
Volume5
Issue number6
DOIs
Publication statusPublished - 2002 Nov

Keywords

  • Design wind load
  • Dynamic response analysis
  • Gust effect factor
  • Load estimation
  • Single-layer latticed dome
  • Structural frame
  • Wind-induced response

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Modelling and Simulation

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