- 摘 要
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曹 資 張毅剛
（北京工業(yè)大學(xué)土木系 100022）[提要] 考慮不同矢跨比、荷載、跨度和支座剛度等多種因素的影響，對單層球面網(wǎng)殼在地震作用下的反應(yīng)進(jìn)行了較全面的研究，給出了其隨各參數(shù)變化的規(guī)律，得出了在單層球面網(wǎng)殼抗震設(shè)計(jì)中起控制作用的是水平地震作用而不是豎向地震作用等有益的結(jié)論。此外本文還給出了由于阻尼比不同而需對引用現(xiàn)行抗震規(guī)范反應(yīng)譜分析的網(wǎng)殼地震作用進(jìn)行修正的建議。
[關(guān)鍵詞] 單層球面網(wǎng)殼 水平地震作用 動力反應(yīng)特征A thorough investigation and study on the influence of some parameters, such as the ratio of height to
span, loads, span and the stiffness of supports, on dynamic characteristics and seismic response of single layer latticed domes were made. Some useful conclusions about the seismic performance were obtained, in which the most important concept is that the horizontal seismic response of latticed domes is much larger than the vertical one. In addition, the adjustment factor of seismic action due to different damping ratios for latticed domes was given.
Keywords: single layer latticed dome; horizontal seismic response; seismic characteristics
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