Fatigue Damage Modeling for Partially Prestressed Concrete Beams under Repeated Loadings with Variable Amplitude

被引：2

作者：

冯秀峰 ^{[1
]}

宋玉普 ^{[2
]}

朱美春 ^{[3
]}

机构：

[1] School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116023, China ,Bureau of Land Resources and Housing Administration of Qingdao, Qingdao 266002, China

[2] School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116023, China

[3] School of Engineering, Ocean University of China, Qingdao 266071, China

来源：

Railway Engineering Science | 2006年 / 03期

关键词：

Prestressed concrete beam; Fatigue; Damage; Nonlinear analysis; Stress redistribution;

D O I：

暂无

中图分类号：

TU375.1 [梁];

学科分类号：

081304 ; 081402 ;

摘要：

A full-range nonlinear analysis method for fatigue damage in prestressed concrete beams is presented. New damage accumulation models are proposed to describe the fatigue damage evolution in concrete and reinforcement respectively. Based on the stress analysis for cross section, the stress redistribution in the fatigue damage process, due to the different damage mechanisms of concrete and reinforcement, is considered. The nonlinear damage analysis is achieved by means of piecewise linearity, and it is applicable on the condition of repeated loadings with variable amplitude. Fatigue damage modeling of a beam is implemented to illustrate that the proposed method can preferably fit the experimental results.

引用

页码：258 / 264

页数：7

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