The Design Of No-platform-column Canopy Structure Resist The Great Accidental Loads Based On The Separate Disaster Mode

With the rapid development of large-span space structure, in which no-platform-columncanopy as a new architectural forms to develop rapidly in the country. In recent years, thesnow disaster and earthquake disaster in China often occur, and disasters of its load is more thanthe standard value at design time, this structure revealed a lot about security issues. Meanwhile,no-platform-column canopy as a public building cost is very expensive, and interior ofcrowded, if encountered in practice accident, it would bring to people and society cannot ignorethe enormous losses. Therefore, the study on no-platform-column canopy of the disaster is ofgreat practical value. Based on a disaster preparedness raised no-platform-column canopydesign method for great accidental loading resistance, this design method can satisfy theno-platform-column canopy structure of the normal use of functional requirements.Andin the event of disasters of great accidental loads, to the greatest extent of the protectionstructures do not occur in the body of destruction, disaster loss reduction, post-disasterreconstruction efforts much easier.In this paper, the North Station’s structure as a model of no-platform-column canopy,using finite element software ANSYS to its great accidental loads(snow load and earthquakeloads) under simulation analyses of structures, draw a structure internal force variation. Andbased on the numerical simulation results and extensive application in the field ofseismic disaster, noted that stated that the structure of great resistance loads design ofdisaster preparedness measures. By disaster-set element in the structure and the destruction ofdisaster-control components, uninstall active disaster loads, you can reduce the destruction ofno-platform-column canopy structure, to the greatest extent reducing disaster losses. At thesame time as the destruction disaster preparedness component uninstall, improvingno-platform-column canopy structure of ultimate bearing capacity and vulnerability, torelief work have won valuable time, economic efficiency significantly, engineeringpractices with reference and guiding significance for the future.