Abstract:Integral response deformation method, as a kind of practical calculation method proposed recently, has been applied to seismic analysis of underground structures. The method, which is applied to seismic analysis of underground structures with complex cross-sections, has already been adopted by National Standard “Code for seismic design of underground structures” (GB/T 51336—2018). In the proposed method, an integral stratum-and-structure model is established to reflect the interaction of stratum and structure , and the equivalent seismic loads are calculated by adopting stratigraphic free-field model. As a result, the calculation errors due to ground springs used in the classical response deformation method can be obviated, and the limitation that the classical method is only applicable to seismic analysis of underground structures with regular cross-sections can be removed. In this paper, the integral response deformation method is theoretically derived based on the finite element analysis model. Besides, the consistency in principle of the integral response deformation method in the national code and the theoretically derived one is also proved, which is beneficial to understanding and properly impelementing the integral response deformation method.
刘晶波 王东洋 谭 辉 李述涛 宝 鑫. 整体式反应位移法的理论推导及一致性证明[J]. 土木工程学报, 2019, 52(8): 18-23.
Liu Jingbo Wang Dongyang Tan Hui Li Shutao BaoXin. Theorectical derivation and consistency proof of the integral response deformation method. 土木工程学报, 2019, 52(8): 18-23.