LOSSES IN PARTIALLY PRESTRESSED CONCRETE

被引：0
|
作者：
BATCHELOR, BD
SRINIVASAN, J
GREEN, MF
机构：
[1] Queen's Univ, Canada
来源：
CANADIAN JOURNAL OF CIVIL ENGINEERING | 1988年 / 15卷 / 05期
关键词：
Bridges; Highway--Structural Design - Structural Analysis - Structural Design--Ontario;
D O I：
10.1139/l88-114
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The calculation of prestress losses by the age-adjusted effective modulus method is analyzed and compared with the Ontario highway bridge design code predictions for partially prestressed concrete. Specifically, the effect of nonprestressed reinforcement on prestress losses is studied. The age-adjusted effective modulus method for calculating prestress losses is outlined, and plots of prestress losses versus partial prestressing ratio are presented and analyzed. It is shown that prestress losses decrease with increasing amounts of nonprestressed reinforcement. Also, the Ontario highway bridge design code expressions,which are intended for use with fully prestressed sections, are not suitable for use in the design of partially prestressed concrete members.
引用
收藏
页码：890 / 899
页数：10
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