【摘要】 随着结构可靠度理论的深入研究 ,由结构构件强度设计向结构功能设计的概念转变是结构设计发展的必然趋势。水工结构作为国家基础建设中重要的组成部分 ,针对其特殊使用功能的设计 ,也将成为水工结构设计功能正常实现的保障。基于功能的结构设计以安全 -经济为评价标准 ,安全性是指结构设计功能在使用过程中能够正常运行的可靠程度 ;结构经济性是考虑结构在整个功能使用期间的所有费用和损失之和。针对水工建筑物自身的特殊性 ,在尝试建立了基于水工建筑物的功能设计模型后 ,将考虑时间条件下影响水工建筑物经济性评价的主要因素作以初步探讨更多还原

【Abstract】 With the deeply research in structural reliability theory, the structural design is transitioning from considering strength to (considering) performance. And it has been the direction for the future development. Hydraulic structure is an important part of the (infrastructure.) And the design for its special performance is required. The evaluated standard of the performance based design is (safe-economic.) Safe is defined as the reliability level that the structural function can be normally performed. Economic is the total costs and losses in its service life. Toward the particularity of the hydraulic buildings, this paper analyses the factors that influenced the (economic) evaluation of the hydraulic structures considering time condition.更多还原