摘要
以广州永和大道跨线桥为工程背景,对4种预应力钢束布置方案的正截面拉应力及斜截面主拉应力进行了计算比较分析,得出了几点关于四跨非对称预应力混凝土连续箱梁桥的钢束优化思路。
Based on a continuous box girder bridge in Yonghe Avenue in Guangzhou,the tensile stress on normal section and principal tensile stress on oblique section in 4 kinds of arrangement scheme for prestressed tendons are studied,and then a few ideas of optimal design of prestressed tendons for the 4-span asymemetric PC continuous box girder bridge are summarized.
出处
《广东土木与建筑》
2012年第1期41-43,49,共4页
Guangdong Architecture Civil Engineering
关键词
四跨非对称
预应力混凝土
连续箱梁桥
预应力钢束优化
asymmetric four-span structure
prestressed concrete
continuous box girder bridge
optimal design of prestressed tendons
