Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Design of Ballasted Solar Arrays on Low-Slope Roofs
Currently, ASCE standards require that nonstructural components of a building be positively attached to the building in regions of moderate to high seismicity. However, for solar arrays that bear on low-slope roofs, friction between the array and roof surface limits or prevents sliding of the array in an earthquake. In many cases, the seismic performance of such arrays can be shown by analysis to meet the design intent of the building code without being fastened to the building structure. This paper presents a methodology for estimating the sliding displacement corresponding to ASCE standards for design-level earthquake shaking. The writers conducted nonlinear response-history analyses considering a range of different seismicity levels, roof slopes, and coefficients of friction, which lead to design values of sliding seismic displacement for solar arrays in different conditions. Important aspects of a broadly applicable analysis include performing testing to determine appropriate coefficients of friction, performing analysis with earthquake records spectrally matched to broadband response spectra, and considering the effect of vertical earthquake motion on frictional response.
Seismic Design of Ballasted Solar Arrays on Low-Slope Roofs
Currently, ASCE standards require that nonstructural components of a building be positively attached to the building in regions of moderate to high seismicity. However, for solar arrays that bear on low-slope roofs, friction between the array and roof surface limits or prevents sliding of the array in an earthquake. In many cases, the seismic performance of such arrays can be shown by analysis to meet the design intent of the building code without being fastened to the building structure. This paper presents a methodology for estimating the sliding displacement corresponding to ASCE standards for design-level earthquake shaking. The writers conducted nonlinear response-history analyses considering a range of different seismicity levels, roof slopes, and coefficients of friction, which lead to design values of sliding seismic displacement for solar arrays in different conditions. Important aspects of a broadly applicable analysis include performing testing to determine appropriate coefficients of friction, performing analysis with earthquake records spectrally matched to broadband response spectra, and considering the effect of vertical earthquake motion on frictional response.
Seismic Design of Ballasted Solar Arrays on Low-Slope Roofs
Maffei, Joe (Autor:in) / Fathali, Saeed (Autor:in) / Telleen, Karl (Autor:in) / Ward, Rob (Autor:in) / Schellenberg, Andreas (Autor:in)
06.05.2013
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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