实测钢筋计应力推算地下连续墙弯矩方法探讨

Calculation of Diaphragm Wall Moment by Measured Reinforcement Stress

根据钢筋混凝土受弯构件的不同工作状态,推导出了由监测数据分阶段反算地下连续墙弯矩的实用计算方法,并结合工程实例与传统算法进行比较,发现传统算法的误差将会随着地下连续墙变形的发展而变得很大,从而失去有效性,而新算法由于考虑了地下连续墙工作状态的阶段性,从而使得计算精度更高,过程更合理,方法更有效。

On the basis of different working situation of the bending member of reinforced concrete a new applicable method is deduced to calculate phase by phase the flexural moment of diaphragm wall by using observed statistics. The study is made through an engineering case and it is found that the aberration of the traditional calculation method would increase greatly as diaphragm deformation develops. Compared with traditional calculation, the new method is proved to be effective to simplify calculation process and improve precision as different working situations of diaphragm are taken into consideration.