- 摘 要
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丁曉敏，張季超，朱 超，許 勇，王可怡
(廣州大學(xué)，廣州510006)[摘要] 常規(guī)的建筑結(jié)構(gòu)抗震設(shè)計(jì)認(rèn)為地下結(jié)構(gòu)受地震力作用較小，一般僅采取抗震構(gòu)造措施，或者把地下結(jié)構(gòu)等同于地面結(jié)構(gòu)進(jìn)行抗震驗(yàn)算?；贛IDAS/Gen軟件對廣州市珠江新城城市地下空間工程建立二維有限元模型，探索在土與結(jié)構(gòu)之間采用彈性邊界元，對結(jié)構(gòu)進(jìn)行抗震分析；并與不采用彈性邊界元的同一結(jié)構(gòu)進(jìn)行了對比分析，得出對地下結(jié)構(gòu)進(jìn)行抗震計(jì)算是非常必要的。
[關(guān)鍵詞] 地下結(jié)構(gòu)；抗震設(shè)計(jì)分析；有限元；彈性邊界；對比MIDAS/Gen-based seismic design analysis for underground structures
Ding Xiaomin, Zhang Jichao, Zhu Chao, Xu Yong,Wang Keyi
(Guangzhou University, Guangzhou 510006, China)Abstract: Conventional seismic design of building structures considers that underground structures subjected to earthquake force is small, generally only to take details of seismic design, or the checking of earthquake resistance for the underground structure is equivalent to the surface structures. Based on MIDAS/Gen for urban underground space engineenng of Guangzhou Zhujiang New Town, two dimensional finite element model is established, explore to take the elastic boundary between the soil and underground structure, seismic analysis for the structure; and compared to the same structure with non-elastic boundary, the seismic calculation for the underground is necessary.
Keywords:underground structure; seismic design analysis; finite element; elastic boundary
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