| Summary |
In seismic design of general architectural structures, earthquake is considered as horizontal static loads. In several studies, however, it has been pointed that vertical vibration can be observed in seismic response of large-spanned structures such as frame-supported membrane structures. If seismic design of large-spanned structures is performed by using only horizontal static loads, structures may not have enough strength for earthquake.
For above mentioned problem, the authors proposed a seismic response evaluation method. In our method, horizontal and vertical accelerations were considered, and they were amplified along ratio of fundamental frequencies of roof and structure.
In this paper, seismic design load is applied to a syngle layer dome roof structures. Response spectrum analysis is also performed, and results are compared. It is discussed that seismic response of frame-supported membrane structures can be accurately evaluated by using the method.
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