Shear strength of reinforced concrete beams based on elastoplastic stress field theory

被引：0

作者：

Xiong E.-G. ^{[1
]}

Xu H. ^{[1
]}

Tan C. ^{[1
]}

Wang J. ^{[1
]}

Ding R.-Y. ^{[1
]}

机构：

[1] School of Civil Engineering, Chang'an University, Xi'an

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2021年 / 51卷 / 01期

关键词：

Elastoplastic stress field theory; ICONC program; Reinforced concrete beams; Shear capacity; Structural engineering;

D O I：

10.13229/j.cnki.jdxbgxb20190940

中图分类号：

学科分类号：

摘要：

In order to study the shear behavior of reinforced concrete beams based on the elastoplastic stress field theory (EPSF), ICONC, a finite element program based on the EPSF theory, was used to model the concrete members. The influences of finite element mesh size, shape and iterative step number on the simulation results were investigated. Twelve test beams were selected. The simulation results based on EPSF theory, experimental results and ABAQUS simulation results were compared to verify the accuracy of the results based on EPSF theory. The shear capacities of 70 beams subject to shear failure were calculated by the formulas in the Chinese and American code, and also calculated by EPSF theory, then those calculated values were compared with the experimental values. The results show that the mesh size, shape and iteration steps have little influence on the simulation results. ICONC, an applicable program based on EPSF theory, can accurately simulate the failure phenomena of reinforced concrete beams, the yield of reinforcement and the crack distributions of concrete. Compared to ABAQUS, EPSF theory can permit an accurate, convenient and rapid prediction of the ultimate shear capacity for reinforced concrete beams. The changes in concrete strength, shear span ratio and stirrup ratio have little impact on ICONC program simulation results. So the proposed method has certain accuracy and stability. © 2021, Jilin University Press. All right reserved.

引用

页码：259 / 267

页数：8

共 18 条

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