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Abstract
This paper, presented at the CRREL's First International Conference on Snow Engineering, focuses on the heavy snow experienced during the 1962-63 and 1980-81 winters which causaed considerable damage to many buildings and strucutures in Japan. In this paper, the causes for the building failures are analyzed based both on the on-site failure investigations and on the response analysis of the damage buildings; particular attention is paid to the estimation of the design snow load and the load carrying capability of the structures. The results of a three-dimensional frame analysis of a steel-framed structure with a simple-pitched roof idnicate that the actural stress induced in some members, such as tie beams in the longitudinal direction, will exceed the design stress estimated from a planar frame analysis. Furthermore, as for some structures with simple-pitched roof trusses, it is found from an elasto-plastic planar frame analysis that a total building collapse could be triggered by the yieldings of some members, followed by the buckling of compresisve members of by the fracture of the joints.
This paper, presented at the CRREL's First International Conference on Snow Engineering, focuses on the heavy snow experienced during the 1962-63 and 1980-81 winters which causaed considerable damage to many buildings and strucutures in Japan. In this paper, the causes for the building failures are analyzed based both on the on-site failure investigations and on the response analysis of the damage buildings; particular attention is paid to the estimation of the design snow load and the load carrying capability of the structures. The results of a three-dimensional frame analysis of a steel-framed structure with a simple-pitched roof idnicate that the actural stress induced in some members, such as tie beams in the longitudinal direction, will exceed the design stress estimated from a planar frame analysis. Furthermore, as for some structures with simple-pitched roof trusses, it is found from an elasto-plastic planar frame analysis that a total building collapse could be triggered by the yieldings of some members, followed by the buckling of compresisve members of by the fracture of the joints.
Date
7/1988
7/1988
Author(s)
J Suzuya; Y Umeatsu
J Suzuya; Y Umeatsu
Page(s)
59-68
59-68
Keyword(s)
snow; snow load; building failure; Japan
snow; snow load; building failure; Japan