Ultimate analysis of PWR prestressed concrete containment under long-term prestressing loss

被引：27

作者：

Hu, Hsuan-Teh ^{[1
]}

Lin, Jun-Xu ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Tainan 701, Taiwan

来源：

ANNALS OF NUCLEAR ENERGY | 2016年 / 87卷

关键词：

Ultimate analysis; Prestressed concrete containment; Prestressing loss; POSTTEST ANALYSIS; MODEL;

D O I：

10.1016/j.anucene.2015.10.005

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Numerical analyses are carried out by using the Abaqus finite element program to predict the ultimate pressure capacity and the failure mode of the PWR prestressed concrete containment at Maanshan Nuclear Power Plant, Taiwan, R.O.C. under long term prestressing loss. Material nonlinearity such as concrete cracking, tension stiffening, shear retention, concrete plasticity, yielding of prestressing tendon, yielding of steel reinforcing bar, yielding of liner plate and relaxation of prestressing tendon are all simulated with proper constitutive models. The results of the numerical analysis show that after the 40 years of service, the prestresses in the prestressing tendons would lose about 19% of their initial values. However, under long term prestressing loss, the ultimate pressure capacity of the containment is still higher than the design pressure 482 kPa by 58%. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：500 / 510

页数：11

共 13 条

[1] FE ANALYSIS STRATEGIES FOR STRUCTURAL-MATERIALS WITH SMALL TENSILE-STRENGTH [J].