- 摘 要
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龔昌基 （福建省建筑設(shè)計研究院 福州 350001）
[提要] 幕墻立柱的抗風(fēng)抗震設(shè)計，一般按簡支梁模式考慮。根據(jù)實際受力情況建議按帶伸臂的多跨梁模式設(shè)計計算，最大彎矩計算值可減少30% ~50%，在截面尺寸不變的條件下，桿件撓度可減小1/2以上，效益顯著。給出了計算公式和算例，并提供了節(jié)點做法。
[關(guān)鍵詞] 幕墻立柱 伸臂梁模式 抗風(fēng)抗震計算The columns of the glass curtain wall under the wind load and the earthquake action are usually calculated by the model of simply supported beam. It is suggested to calculate by the model of "beam with extended arm", which can reduce the maximum calculated moment 30% ~50%and reduce the column deflection more than 50%.It can make great economic benefit. The calculative formulas and the example are given out, and the joint construction is also offered.
Keywords: columns; glass curtain wall; model; beam with extended arm; calculating; wind load; earthquake action
