Low-rise buildings located in the urban areas are generally surrounded by buildings of similar
size. The interference of surrounding buildings has been found to be significant on wind loads in
straight-line winds. In this study, systematic experiments of tornado-induced wind loads and flow
patterns around a typical low-rise gable-roof building with different layouts of surrounding
buildings were carried out in a laboratory. Effects of spacing, height ratios of the surrounding
buildings to the test building and specific building orientations were considered. The results
indicate that the reduction of the horizontal load is caused by sheltering effect from the
surrounding buildings. The uplift load, however, could increase or decrease dependent on
building orientation, layout and the type of the surrounding buildings. The complicated flow
patterns around the test building are discussed and correlated to the wind loads. This study
would improve the understanding of tornado-induced loads on a low-rise gable-roof building 德国LaVision PIV/PLIF粒子成像测速场仪
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