纤维模型梁柱单元是目前处理空间杆系双向弯曲与变轴力耦合问题最为实用有效的单元分析模型。
Fiber model beam-column elements are presently one of the most practical and efficient element models handling biaxial bending and variable axial force coupling problems of frame structures.
同时也证明基于纤维单元的非线性分析模型能高效的完成复杂结构的整体分析。
The results also show that nonlinear analysis based on fiber elements can be employed for complicated structure simulation.
本文所用的分析模型（纤维模型梁柱单元）对于以弯曲破坏为主的梁柱分析已经具有足够的准确度，因此主要依赖于单轴材料恢复力模型的合理性。
The analysis model used by this paper is proved that the accuracy is enough, so the accuracy of the material model plays an important role.
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