关键词: 破损复合材料结构, 承载能力, 实际刚度, 刚度保留率, 整体位移, 等代设计

Abstract: The preliminary investigation on the evaluation of load carrying capacity of large composite structures in engineering from which the samples can't be taken for tests in the damaged state is carried out in the paper.Through the analyses and comparisons,an actual evaluation method fitting to beam structures which is based on the "replacing design" idea is developed,and a reference model of theoretical analysis and its being carried into practice,which is used in the preliminary evaluation of these types of structures when they are required for repair and reinforcement,is suggested.

Key words: damaged composite structure, load carrying capacity actual stiffness, stiffness remanent rate, displacement of the whole structure, replacing design