【摘要】 根据结构可靠性的基本理论和无粘结部分预应力混凝土构件设计方法 ,分析了基于“特征裂缝宽度”的正常使用极限状态下的可靠性 .计算结果说明 ,无粘结部分混凝土构件的正常使用极限状态下的可靠性提高 ,设计规范的“特征裂缝宽度”计算公式有较高的可靠保证 .更多还原

【Abstract】 According to the basic theory of structural reliabi li ty and member design method of unbonded partially prestressed concrete member, b ased upon characteristic crack width, the reliability of unbonded partially pres tressed concrete members is analyzed for serviceability limit state. The results are shown that reliability level of the members are sufficient, the guaranteed reliability is higher using the calculating formulas of characteristic crack wid th of current design codes.更多还原