- 摘 要
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张俊芝 (浙江工业大学建筑工程学院 杭州310014)苏小卒 (同济大学 上海200092)
[提要] 在已有试验成果基础上,研究了无粘结预应力混凝土梁中无粘结预应力筋的极限应力增量与配筋强度比的关系和相关性,以及预应力筋的极限应力和梁的承载能力计算模式的不确定性,得出可供该结构可靠性分析的统计参数。
[关键词] 无粘结预应力筋 极限应力 极限承载能力 相关性 不确定性Based on the previous test results, the relationship and correlation between the ultimate stress increment in unbonded tendons and steel index ratio are researched. The unascertained qualities of calculating model for ultimate stress in unbonded tendons and ultimate bearing capacity of beam are analyzed. Some statistical parameters used for reliability analysis of the structure are proposed.
Keywords: unbonded prestressed tendon; ultimate stress; ultimate bearing capacity; correlation; unascertained quality参 考 文 献
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