- 摘 要
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盛 平 (北京市建筑設(shè)計(jì)研究院 100045)
[提要] 某人型演播廳為空間結(jié)構(gòu),其12根圓柱沿直徑42.6m的圓環(huán)布置,柱間只靠弧形人梁連系且弧梁還要承托看臺(tái),結(jié)構(gòu)整體性較差。作者就此進(jìn)行了結(jié)構(gòu)分析計(jì)算和抗震設(shè)計(jì),忽略混凝土所承擔(dān)的扭矩和軸壓力的影響,推導(dǎo)了鋼筋混凝土圓形截面的抗扭計(jì)算公式。
[關(guān)鍵詞] 演播廳 混凝土圓柱 弧形梁 抗扭計(jì)算 結(jié)構(gòu)設(shè)計(jì)A studio ccntcr is a large space structurc. Twclve circular concrcte columns arc placcd along the circlc, the diamctcr of which is 42.6m. The columns arc conncctcd by arc girdcr only, so the monolithic structurc-propcrty of the structure is not vcry wcll. The structural dcsign and calculation arc introduccd, and the torsional strcngth cquation for the circular scction of the columns is dcrivcd.
Keywords: studio ccntcr; arc girdcr; torsional strcngth
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