Applications of high performance concrete to the prestressed bridge girder industry

被引：0
|
作者：
French, C [1 ]
Shield, C [1 ]
Mokhtarzadeh, A [1 ]
Ahlborn, T [1 ]
机构：
[1] Univ Minnesota, Minneapolis, MN 55455 USA
来源：
HIGH STRENGTH CONCRETE, PROCEEDINGS | 1999年
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Tests were conducted on 7000 concrete cylinder specimens to investigate the mechanical properties and durability of HPC. The main factor affecting the material performance was the aggregate type. In addition, two long-span prestressed bridge girders were fabricated to investigate the structural performance of members cast with HPC. Transfer lengths of large diameter strand in HPC were conservatively predicted by current design practice. There was no stiffness degradation observed through three million cycles of service loads, and ultimate shear strengths were predicted conservatively using current design procedures.
引用
收藏
页码：294 / 307
页数：2
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