地下抗爆结构动力分析的基本方法
The Fundamental Methods of Dynamical Analysis of the Blast-Resistant Underground Structures
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摘要: 本文建立了地下抗爆结构动力分析的广义变分原理,相应的导出地下结构弹塑性分析的广义泛涵,给出非保守体系的广义变分原理,从而提出了地下抗爆结构动力分析的基本理论, 文中还对地下圆形抗爆结构进行了动力计算和试验对比。Abstract: In this paper, the generalized variational principle of dynamic analysis for the blast-resistant underground structures is established, and the corresponding generalized functional of elastoplastic analysis for underground structures is derived, and the generalized variational principle of nonconservative system is given, thus the fundamental of dynamical analysis for underground structures to resist blast is proposed. Finally, for the underground cylindrical structure to resist blast, dynamical calculations are made, and compared with the test results.
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[1] 钱伟长,《变分法及有限元》,科学出版社(1980). [2] 薛大为,应用数学和力学,12(3)(1991), 209-218. [3] 赵玉祥,顾祥珍,固体力学学报,4(1984),628-631 [4] 赵玉祥、顾祥珍,隧道及地下工程,6(1984). -
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