On three-dimensional nonlinear analysis of concrete structures

Abstract

Solution capabilities for three-dimensional geometric and material nonlinear finite element analysis of concrete structures are presented. The concrete material is modeled including triaxial nonlinear stress-strain behavior, tensile cracking, compression crushing and strain-softening. The objective in this work was the development of a practical nonlinear concrete analysis capability. The material model can also be employed to represent some rock materials. The results of various sample analyses are given, in which the stability and accuracy of the finite element representations have been studied.

Weight optimization for flexural reinforced concrete beams with static nonlinear response

“…The uniaxial stress-strain relations described in (1) and (2) were proposed by Bathe and Ramaswamy (1979), and are very close to the experimental results presented by Kupfer el at. (1969).…”

“…The simply-supported RC beam given by Bathe and Ramaswamy (1979) and shown in Fig. 3 is optimized with respect to the thickness of concrete and the cross-sectional area of reinforcement.…”

“…On the other hand, in the definitions of material models for concrete, and steel reinforcement, several approaches proposed in the literature have made significant contributions by the methods of analysis and/or experiment. The methods proposed by Bathe and Ramaswamy (1979) and Liu et al (1972) are adopted in this paper, since there is a strong interaction between the adopted material model and its numerical implementation in practical nonlinear analysis.…”

Proceedings of the Workshop on Measurement and Analysis of Structural Response in Concrete Armor Units Held in Vicksburg, Mississippi on 23-24 January 1985

“…The material model selected for use in this study is a hypoelastic model based on a uniaxial stress-strain relation that is generalized to take biaxial and triaxial stress conditions into account (Bathe and Ramaswamy, 1979). The model employs three basic features to describe the material behavior; (i) a nonlinear stress-strain relation including strain softening to allow for weakening of the material under increasing compressive stresses;…”

Experimental and Numerical Researches on the Seismic Behavior of Tubular Reinforced Concrete Columns of Air-Cooling Structures

“…For common reinforced concrete members, lots of experimental investigations have been conducted (Nilson and Arthur 1968;Bathe and Ramaswamg 1979;Priestly and Benzoni 1996;Lehman et al 1995;Phan et al 2007;Hindi 2005;Hindi et al 2005;Wang et al 2014;Afefy and El-Tony 2016;Jiong 2004;Li and Ren 2009;Elmorsi et al 1998;Esmaeily and Shirmohammadi 2014;Shao et al 2005;Zendaoui et al 2016;Ren et al 2010). Previous studies of reinforced concrete members have demonstrated that slender ratio, material property, axial compression ratio, reinforcement ratio, detailing art and stirrups played significant roles in the seismic behavior, especially the hysteretic performance of reinforced concrete members.…”