拱坝侵彻损伤效应与安全控制(Ⅰ):基于ANSYS软件的分载算法  

Penetrated damage effects and safety control of arch dam(Ⅰ):trial load method based on software ANSYS

作　　者：徐青[1] 周祥森[1] 陈胜宏[1] XU Qing;ZHOU Xiangsen;CHEN Shenghong(State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2023年第6期643-650,共8页Engineering Journal of Wuhan University

基　　金：国家自然科学基金重点项目(编号:51939008)。

摘　　要：拱梁分载法是我国现行拱坝设计规范中指定的应力分析方法之一,也是拱坝体型优化设计的主要方法。基于ANSYS软件开发了拱梁分载法计算程序,实现了拱梁系统自由加密及坝体侵彻孔口模拟,并通过了与有限元解的对比考核。该成果涵盖“建模-加载-求解-结果输出”功能,为局部侵彻毁伤拱坝稳定性的评估提供了算法简捷便利、软件流程标准、前后处理优良的计算平台。该成果对后续展开的侵彻损伤坝体极限承载力、稳定性监控与预警指标的拓展研究提供了坚实的基础。The trial load method is one of the stress analysis methods stipulated in the current design specifications of arch dams in China,and it is customarily employed for the shape optimization design of arch dam.The development of the calculation program of a new trial load method based on ANSYS software is presented in this paper.The free increase density of the arch beam system and the simulation of the dam body penetration orifice is realized,and the simulation passes the comparison and assessment with the finite element solution.This research covers the functions of"modeling-loading-solving-result output",which provides a computing platform with simple and convenient algorithm,standard software process and excellent pre-processing and post-processing for the stability evaluation of local penetrating damaged arch dams.The results provide a solid foundation for further researches on the ultimate bearing capacity of dam body,stability monitoring and warning indicators of the dam with penetration damage.

关 键 词：拱梁分载法 ANSYS 拱梁系统 带孔拱坝 应力 变位 

分 类 号：TV3[水利工程—水工结构工程]