Comparison And Analysis Of Structural Seismic Calculation Of Nandou Station In Shijiazhuang Metro

With the rapid development of the economy,the urbanization process has been accelerated,and the traffic pressure brought by the population pressure has developed rapidly.The number of earthquakes affected by earthquakes in the early stage has not been clearly recognized by the designers.The impact of earthquake resistance and its damping measures has always been a short-board for the design of underground structures in China.At the same time,the damage and damage to underground structures has become more serious.In recent years,there have been many strong earthquakes in the world,such as the 1995 Great Hanshin Earthquake in Japan,the 1999 Taiwan earthquake,the 1999 Kocaeli earthquake in Turkey,and the 2008 Wenchuan earthquake in China.These earthquakes have caused serious damage to the underground structure,especially in the case of the Great Hanshin Earthquake in Japan,which caused serious damage to underground structures,stations,underground sites,etc.,and even the collapse of the metro station.With the frequent occurrence of earthquake disasters,designers and seismic engineering experts from all over the world have gradually increased their attention and attention to structural earthquake resistance.China is in a multi-seismic zone,and many metro cities are located in the seismic zone.However,as a subway project of the urban lifeline project,once the earthquake load is damaged,the economy,personal property and property will suffer heavy losses.At present,China’s research on earthquake resistance and protection of subways is still not perfect,and the current design specifications for earthquake resistance of subway stations are only at the theoretical stage,and there are problems such as mismatch with actual projects and weak application ability.In particular,no detailed design comments were made on how to prevent earthquakes.Therefore,we still need to improve the seismic research of the subway.Based on the background of Nandou Station of Shijiazhuang Metro Line 3 Phase 2,considering all kinds of loads that may occur during the use of the structure,this paper uses the large-scale finite element software MIDAS to select the representative section form of the station structure,to analyze the most disadvantageous combination that may occur in the structure as a whole,and uses the response displacement method and the time history analysis method to carry out the special aseismic calculation research.By comparing and analyzing the force results,we can get the most disadvantageous position of the station under the action of horizontal seismic force.Finally,based on the above calculation results,the optimal reinforcement scheme and a series of targeted seismic measures are proposed.The research results are of great significance for scientifically and rationally designing subway projects and improving the seismic performance of metro stations,and also provide valuable experience for future research on subway structures.