Basic theory of nonlinear FEM analysis and its realization in ANSYS were studied. Accomplish stability analysis of high arch dam abutment based on nonlinear FEM analysis.
因此对大型结构分析软件ANSYS的三维非线性计算功能进行了深入研究，在此基础上完成了基于非线性有限单元法的高拱坝坝肩稳定计算分析。
Through analysis on theory, the author finds the basic regularity in transmitting the supporting force by the arch supporting force of tunnel with circular arch section.
通过细致的理论分析，笔者初步找出了圆拱状断面隧道拱壁支承力传递的基本规律。
This paper analyses force of arch structure in terms of theory, points out constructional Limitations of arch structure applying prefabricated component. It provides basis for guiding construction.
从理论上对拱上结构进行受力分析，得出拱上结构采用预制混凝土块浆砌施工有一定局限性的结论，并以此为依据指导施工。
Based on the theory of rock mechanics and the principle of drifting, the author proposed the suspension arch method of drifting in unstable strata.
本文在总结先拱后墙平巷掘进经验的基础上，根据岩石力学理论和平巷掘进原理，提出了平巷掘进的悬拱法。
This paper analyses force of arch structure in terms of theory, points out constructional Limitations of arch structure applying prefabricated component.
从理论上对拱上结构进行受力分析，得出拱上结构采用预制混凝土块浆砌施工有一定局限性的结论，并以此为依据指导施。
The result of forecasting is consistent with the fact one. The applicability of block theory in overbreak of doubled arch tunnel is tested.
通过预测得出的结果证实了块体理论在高速公路连拱隧道超挖预测中的适用性。
Secondly, it discussed the deflection in stability of arch bridge and geometry nonlinear theory on ultimate load-carrying ability.
其次，论述了关于拱桥稳定性的挠度问题和极限承载力的几何非线性理论。
According to linear request of the entire bridge main arch rib, use fuzzy theory and the ANFIS inference system forecast that various stages raise in advance.
根据全桥主拱肋线形要求，利用模糊理论及ANFIS推理系统预测各节段的预抬高值。
In this thesis, the FEM stress analysis and strength design criteria, multi-axes strength theory and computation, limit load analysis method of arch DAMS are concerned.
本文结合工程实际，在拱坝有限元应力分析方法与强度设计准则、多轴应力强度安全计算、拱坝极限荷载分析理论和方法等方面开展研究。
This paper analyzes the reason of the double arch bridge's damages in theory, combined with the maintenance and reinforcement project of Yellow Dragon bridge.
本论文基于这种思想，结合黄龙大桥的维修加固工程，从理论上对双曲拱桥的病害原因进行分析，并总结了常见的加固方法。
The theory and construction method to deal with and protect the tunnel collapse in arch are studied.
进一步研究了处理和防治塌拱的施工措施和原理。
However, it is restricted in application owing to the lack of a sound theory about the calculation of force of the parabolic oblique arch bridge.
但对抛物线斜板拱桥的受力计算尚无成熟理论，使之应用受到限制。
Based on the error theory, we strictly deduce where is the optimum measuring point and when the standard error of arch-height and that of chord - length are both defined in this paper.
本文从误差的传递着手，严密推证了弓高及弦长测量的标准差取不同值时最佳测量点的位置。
Based on the error theory, we strictly deduce where is the optimum measuring point and when the standard error of arch-height and that of chord - length are both defined in this paper.
本文从误差的传递着手，严密推证了弓高及弦长测量的标准差取不同值时最佳测量点的位置。
应用推荐