预应力与钢筋混凝土桥梁疲劳寿命分析方法分析-(6253)

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1、目录第一章绪论..................................................................................................................11.1课题研究背景及意义.....................................................................................11.2国内外研究现状...................................................

2、..........................................21.3存在的问题...................................................................................................101.4本文研究内容...............................................................................................11第二章预应力混凝土箱梁桥腹板疲劳性能.....

3、......................................................122.1引言...............................................................................................................122.2混凝土与钢筋的S-N曲线...........................................................................122.3腹板疲劳特性......

4、.........................................................................................152.4箱梁腹板疲劳寿命.......................................................................................192.5本章小结...................................................................................

5、....................19第三章预应力混凝土箱梁桥腹板疲劳寿命评估方法...........................................213.1引言...............................................................................................................213.2箱梁桥简化分析方法..............................................................

6、.....................213.3预应力混凝土箱梁桥疲劳寿命评估方法...................................................273.4实例研究.......................................................................................................313.5本章小结..................................................................

7、.....................................42第四章基于损伤—断裂理论的钢筋混凝土桥梁疲劳寿命评估方法...................444.1引言...............................................................................................................444.2疲劳断裂过程..................................................................

8、.............................444.