多成分設計用地震動に対する応答ひずみ : 加速度制約設計トラス列生成法

概要

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A computational method is presented for finding a sequence of seismic response constrained designs of a large-span truss for specified maximum member strains and response nodal accelerations. The truss is to be designed in such a way that response accelerations and strains due to a set of multicomponent earthquake motions compatible with the specified design response spectrum would just coincide with or be less than the specified values. A shape parameter as well as cross-sectional areas is considered as a design variable. A sequence of seismic response constrained trusses is generated with the use of the Taylor series expansion method with respect to an upper-bound strain parameter. It is shown in the example that it is necessary to change the shape so as to satisfy the constraint on the maximum response acceleration.
1994-02-28