在试验中，预应力次弯矩是通过调整支座高度来实现的。
In the test, the prestressed secondary moment is established by adjusting middle support height.
经简化后的开裂弯矩计算公式形式比较简单，计算结果与试验结果基本吻合。
The simplified calculation formula form of cracking moment is simple and the analytical results agree well with that of experiments.
在分析试验结果的基础上，提出了确定裂缝闭合弯矩(或应力)的力学模型和计算公式。
Based on the test results, the calculation model and the method for predicting crack closing moments (or stresses) are presented.
应用推荐