点击次数：

论文类型：期刊论文

发表时间：2016-04-01

发表刊物：ADVANCES IN STRUCTURAL ENGINEERING

收录刊物：SCIE、EI、Scopus

卷号：19

期号：4

页面范围：642-659

ISSN号：1369-4332

关键字：analytical solutions; combined loadings; ovalization; steel pipelines; ultimate bending capacities

摘要：This article derives analytical solutions for steel pipelines subjected to combined bending moments, axial forces, and internal pressure by considering the effect of ovalization on the plastic region. Both lower and upper bound solutions are proposed based on the selection of a general modulus of pipe material. The ultimate bending capacity, as well as the moment-curvature relationship, can be obtained from the analytical solutions. A comparison of the analytical solutions with the experimental and numerical results finds the bending capacities and the moment-curvature curves in good agreement. Therefore, the proposed analytical solutions can be used to study the behavior of steel pipelines subjected to combined loadings.