摘要
基于耐久性要求设计的预应力混凝土结构 ,能自动满足耐久性要求的裂缝控制宽度 ,但应用于超静定结构时 ,需要考虑预应力作用效应的影响。推导了单跨及对称双跨框架考虑预应力作用影响的计算公式 ,并对算例进行了分析 。
The prestressed concrete structures designed based on durability requirements can automatically satisfy the crack control width required by durability.The effect of prestressing force must be considered when this method is applied to the redundant structures.The design formulas considering the influence of prestress action on single and symmetric double span frame structures are derived.Some examples are analyzed.The calculated results indicate that this method is simple and practical.
出处
《工业建筑》
CSCD
北大核心
2003年第3期31-34,25,共5页
Industrial Construction
基金
国家自然科学基金资助项目 (项目批准号 :5 99780 0 8)
关键词
耐久性
预应力混凝土
框架结构
裂缝
控制
结构设计
prestressing force\ frame structures\ durability\ crack control\ design method
