Low-Cycle Fatigue Strength of Steel Piles under Bending

被引：0

作者：

Petursson, Hans ^{[1
]}

Moller, Mikael ^{[2
]}

Collin, Peter ^{[3
]}

机构：

[1] Swedish Transport Adm, Borlange, Sweden

[2] Lulea Univ Technol, AREVA, Helsingborg, Sweden

[3] Lulea Univ Technol, S-95187 Lulea, Sweden

来源：

STRUCTURAL ENGINEERING INTERNATIONAL | 2013年 / 23卷 / 03期

关键词：

integral bridges; low cycle fatigue; steel piles; bridge tests; jointless bridges;

D O I：

10.2749/101686613X13439149156750

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Clamped abutment piles for integral abutment bridges experience both a compressive normal force and bending load cycles stemming from daily and yearly temperature variations. This paper describes experiments using full-scale models of clamped piles to demonstrate that a steel pipe pile can accommodate large inelastic deformations under strains six times greater than the yield strain for several hundred load cycles. This indicates that by permitting pile strains in excess of the yield strain (which is not permissible under most current design codes), integral abutment bridges could be erected with spans of up to 500 m and a projected service life of 120 years. The tests were carried out as a step towards the development of deign rules for determining the capacity of piles for integral abutment bridges.

引用

页码：278 / 284

页数：7