3D fracture modelling and limit state analysis of prestressed composite concrete pipes

被引：3

作者：

He, Pengfei ^{[1
]}

Shen, Yang ^{[1
]}

Gu, Yun ^{[2
]}

Shen, Pangyong ^{[2
]}

机构：

[1] Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R China

[2] Shanghai SMI Engn Project Management Co Ltd, Shanghai 201103, Peoples R China

来源：

FRONTIERS OF STRUCTURAL AND CIVIL ENGINEERING | 2019年 / 13卷 / 01期

关键词：

cylindrical concrete structures; limit state analysis; 3D fracture modelling; prestressed composite pipes; reinforced concrete; three-point bending test; SCREENED POISSON EQUATION; GRADIENT-ENHANCED DAMAGE; FINITE-ELEMENT-METHOD; MESHFREE THIN SHELL; PHANTOM-NODE METHOD; 3-DIMENSIONAL CRACK; PARTICLE METHODS; PROPAGATION; FIELD; DISCONTINUITIES;

D O I：

10.1007/s11709-018-0484-4

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this manuscript, we study fracture of prestressed cylindrical concrete pipes. Such concrete pipes play a major role in tunneling and underground engineering. The structure is modelled fully in 3D using three-dimensional continuum elements for the concrete structure which beam elements are employed to model the reinforcement. This allows the method to capture important phenomena compared to a pure shell model of concrete. A continuous approach to fracture is chosen when concrete is subjected to compressive loading while a combined continuous-discrete fracture method is employed in tension. The model is validated through comparisons with experimental data.

引用

页码：165 / 175

页数：11

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