Area Index Of Rural Community Shelters In Seismically Active Regions In Southwest China

Earthquakes have become the most destructive and frequent natural disaster in Southwest China.Rural communities in seismically active regions in Southwest China are often severely damaged by earthquakes because of weak infrastructure,poor housing conditions,and physical inaccessibility.Therefore,safe and reliable rural community shelters should be built urgently to ensure the life safety of local residents.In recent years,the Chinese government has attached great importance to the construction of shelters and required to increase the scale of indoor shelters.However,the lack of standards and regulations for rural community shelter design results in potential risks to rural residents in these areas.Thus,this study aims to propose area index allocation standards and strategies for rural community shelters in seismically active regions in Southwest China.First,on the basis of existing standards,regulations,and literature on rural public facilities and urban shelter design,we extracted and established shelter area indexes and utilized field investigation and multifactor comprehensive comparative analysis to screen and acquire area indexes for rural community shelters.Subsequently,in accordance with the abovementioned literature and the features of rural communities in seismically active regions in Southwest China,we adopted the analogy and interpolation method to quantify these area indexes.Then,an experimental method was used to verify the reliability of the indexes and adjust the floating threshold of the per capita floor area of rural community shelters by using Any Logic simulation evacuation software.Lastly,the area index allocation standards and strategies for rural community shelters in seismically active regions in Southwest China were presented.This study will promote the sustainable development of rural communities in seismically active regions in Southwest China,supplement and improve the design theories and methods for shelters,and provide technical support for the scientific construction of rural community shelters.