论文部分内容阅读
一、前言拱坝是一空间力学系统,它的精致分析研究是在电子计算机广为使用,特别是有限元法出现以后才开展起来。拱坝设计最优化的目的,是力求在运用充分安全可靠的前提下,使总投资最省。这里除涉及筑坝所需的各种材料,还应包括施工所必须的投资,总投资是受综合因素影响的。拱坝设计最优化应该是综合全部因素进行优化的结果。目前,拱坝最优设计还仅限于最小体积设计,即力求坝体材料用量最省,设计的目标是寻求在外力作用下,全坝各处弯矩最小,进而再力求等强度,从所考虑的因素看,
I. INTRODUCTION An arch dam is a space mechanics system. Its sophisticated analysis and research is widely used in electronic computers, especially after the appearance of the finite element method. The purpose of optimizing the design of arch dams is to ensure that the total investment is the most economical under the premise of adequate safety and reliability. In addition to the various materials required for dam construction, the necessary investment for construction shall also be included. The total investment is affected by comprehensive factors. Arch dam design optimization should be the result of comprehensive optimization of all factors. At present, the optimal design of the arch dam is still limited to the minimum volume design, that is, the amount of dam material used is the lowest. The goal of the design is to seek the minimum moment around the dam under external force, and then try to equalize the strength. See the factors,