Abstract The“Linear meter framework model”used in the traditional response displacement method is analyzed and its error sources and application restrictions are presented. Based on the physical concepts and design ideas of an equivalent beam of slab-column structures under the function of lateral loads, an equivalent plane frame method,which is suitable for aseismic calculations for the longitudinal beam-column system of an underground structure, isproposed. In order to verify the effectiveness of the equivalent plane frame method, calculations of the internal force of different structures and soil parameters are carried out and a comparison between the calculated results and the results of the“linear meter frame model”and dynamic time-history method is conducted using a specific engineering case as an example. The calculation results show that the internal force calculation by the equivalent planar frame method is accurate and has fewer calculations; it can be applied to the aseismic design for an opening in the sidewall, which is highly applicable to various structures and soil conditions.
Abstract：
The“Linear meter framework model”used in the traditional response displacement method is analyzed and its error sources and application restrictions are presented. Based on the physical concepts and design ideas of an equivalent beam of slab-column structures under the function of lateral loads, an equivalent plane frame method,which is suitable for aseismic calculations for the longitudinal beam-column system of an underground structure, isproposed. In order to verify the effectiveness of the equivalent plane frame method, calculations of the internal force of different structures and soil parameters are carried out and a comparison between the calculated results and the results of the“linear meter frame model”and dynamic time-history method is conducted using a specific engineering case as an example. The calculation results show that the internal force calculation by the equivalent planar frame method is accurate and has fewer calculations; it can be applied to the aseismic design for an opening in the sidewall, which is highly applicable to various structures and soil conditions.
AN Jun-Hai- Tao-Lian-Jin- Li-Ji-Dong- Guo- Fei- Bian- Jin
.Equivalent Plane Frame Method for the Aseismic Design of the Cross Section of Underground Structures[J] MODERN TUNNELLING TECHNOLOGY, 2016,V53(5): 43-50
2016, Vol. 53 