- 摘 要
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馬宏旺 呂西林
（同濟(jì)大學(xué)土木工程學(xué)院結(jié)構(gòu)工程與防災(zāi)研究所 上海 200092）[提要] 基于現(xiàn)行建筑抗震設(shè)計規(guī)范，把設(shè)計變量（荷載、材料強(qiáng)度和幾何尺寸）看作隨機(jī)變量，針對鋼筋混凝土框架梁進(jìn)行優(yōu)化設(shè)計。目的是使設(shè)計的梁在滿足現(xiàn)行規(guī)范要求的基礎(chǔ)上，能保持一致的可靠性，同時使設(shè)計造價達(dá)到最小。文中可靠度分析和優(yōu)化計算都基于Monte-Carlo隨機(jī)模擬方法。
[關(guān)鍵詞] 鋼筋混凝土梁 可靠度 優(yōu)化 Monte-Carlo法Seismic optimization design for reinforced concrete beams based on reliability theory following code for seismic design buildings is finished. Design parameters are regarded as random variables. It aims to keep uniform reliability and the mlnlmum cost for designing reinforced concrete beams. The Monte Carlo simulation method is employed to reliability analysis and optimization calculation.
Keywords: reinforced concrete beam; reliability; optimization; Mote-Carlo simulation
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