摘要
建立了能够对各种预应力混凝土结构进行全过程受力分析的通用的计算模型,对影响体外预应力结构力学性能的主要因素进行了参数分析,包括整体施工或节段施工、体内配束或体外配束、钢束与结构有粘结或无粘结对结构力学性能的影响,并讨论了改善其极限荷载阶段力学性能的方法。
A general numerical model for analysis of any kinds of prestessed concrete bridges up to failure by bending is presented.A parameter analysis which devotes to discuss major factors having influences on the structural behavior of externally prestressed concrete bridges is implemented.These factors include monolithic or segmental construction method,internal or external prestressing tendon layout and tendons bonded or unbonded to the concrete structures.Methods of improving the ultimate behavior of externally prestressed concrete structures are also discussed.
出处
《桥梁建设》
EI
CSCD
北大核心
1999年第3期1-4,7,共5页
Bridge Construction
关键词
预应力混凝土桥
体外预应力
桥梁
力学性能
prestressed concrete girder
external prestressing
segmental construction
mechanical performance
structural analysis
model
