介绍对梁体进行的检测、荷载试验，以及对桥梁上部结构及开裂截面的实际受力状况的分析。
In this paper, the inspection, load tests for the beams and analysis of actual mechanical behavior of the superstructure and cracked sections thereof are presented.
试验结果表明：结构在正常使用荷载作用下完全处于弹性工作状态，具有足够的开裂安全系数和强度安全系数。
The test results indicate the structure completely work at elastic state under the normal applying load and have enough cracking and strength safety factor.
这种结构能有效的控制混凝土在爆炸冲击荷载作用下的开裂、震塌，限制结构的变形，增强结构稳定性。
Its effect of controlling the concrete's crack and crush, decreasing the structural deformation and improving the structural stability is marked.
利用该方法可以对结构的各受力阶段进行模拟计算，得出各阶段预弯钢梁、一期混凝土、二期混凝土的应力和结构变形，并能计算出预弯组合梁的开裂荷载和极限破坏荷载。
With the method, each mechanical stage of this kind of structure could be simulated and calculated including crack moment, ultimate strength, stresses and deflections of all stages more precisely.
利用该方法可以对结构的各受力阶段进行模拟计算，得出各阶段预弯钢梁、一期混凝土、二期混凝土的应力和结构变形，并能计算出预弯组合梁的开裂荷载和极限破坏荷载。
With the method, each mechanical stage of this kind of structure could be simulated and calculated including crack moment, ultimate strength, stresses and deflections of all stages more precisely.
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