The Design Theory And Methods Of Camping Housing Structure

As a light metal structure, camping housing structure has the lighter weight,shorter in using, reused and engender defects accumulation by folded and unfolded(or assembled) again and again,and is sensitive to wind and snow load,so the design parameters of such structure is different from building structure.Currently we have not worked out the code and standard for such light structure in china,have no unitive design philosophy,if apply the design material of ordinary building structure,there are unavoidable to have a lot of unreasonable.So it is especially important to improve the design method of camping housing structure.This paper through to the domestic representative of urban meteorological offices and stations subordinate to collect over wind and snow load data recorded as statistical basis, By analysis,get the probability distribution and statistical parameter about the load of any point and the maximum load of design benchmark period; According to the material of camping housing structure at present and get the resistance statistical characteristics of common materials. On this basis,adopt the calibration method,comprehensive consideration of the structural security with economic best balance, by analyse and discuss,to determine the target reliability index of the camping building structure, based on load simple combination,adopt the practical expression of partial safety factor, to get the subentry coefficient of the load,parti-al safety factor for resistance and structure importance coefficient.Lastly,based on the JCSS combination rules,considering the maximum distribution of combination of action effects in benchmark period, this paper adopt "equal reliability index method" optimization calculation camping building structure in the wind and snow load under the combined action of load combination value coefficient.Eventually we set up a set of suitable for camping the construction of homes limit bearing capacity limit state design expression, provide scientific theory For the design of camping houses structure.