Nonlinear Finite Element Analysis of an R/C Frame Under Lateral Loading

Abstract

Recent developments in computer technology have made possible the use of finite element methods for 3D modeling and analysis of reinforced concrete structures. In this study, the failure behavior and crack formation of an R/C frame under monotonic and reversed-cyclic lateral loading are studied by 3D nonlinear finite element analysis using ANSYS software. Modeling the nonlinear behavior of concrete material as well as the reinforcing steel embedded within concrete is a difficult task. Different methodologies and modeling options are considered in the computer model. The application of reversed cyclic displacement loading and the execution of nonlinear analyses are explained in detail. Load-displacement relationships and concrete crack profiles are obtained in order to compare with the experimental data and observed crack profile. The analysis results compared well with the experimental data based on the comparison of load-displacement graphs. The failure mode of the frame is identified by the crack profiles displayed on the structure.

Testing and finite element analysis of reinforced concrete column footings failing by punching shear

“…3. Simultaneous including of cracking and crushing capabilities in the concrete material of the FE model generated problems well known from similar research projects, [15][16][17][18][19][20][21]. In this research, those problems were manifested by difficulties in achieving convergence, and by asymmetric development of crushing, concrete strains, and reinforcement strains.…”

Experimental Study and Numerical Modelling for Flexural Capacity of FRC Structural Elements

“…SOLID65 element requires linear isotropic and multilinear isotropic material properties to properly model concrete. [33] Concrete material Elastic and Concrete material definitions were identified. In Elastic definition, the modulus of elasticity and Poisson's ratio were necessary.…”

“…For Concrete definition, axial tension strength of concrete and shear transfer coefficients between crack surfaces for open and closed cracks were required. [33] To facilitate the modelling process, it was assumed that the fibres in the element are divided into 3 equal parts in each of the 3 planes in the coordinate system. The volume ratio (0.01/3 = 0.00333) in each direction of the coordinate system was defined as the rebar volume divided by the total element volume.…”

Finite Element Analysis On Beam To Column Connection In Ibs Panel

“…In the ABAQUS software, the concrete damaged plasticity (CDP) is adapted in order to define concrete and steel material as shown in Table 1. In this study, the CDP models is calculated based from (Dere & Dede, 2011;Wahalathantri, Thambiratnam, Chan, & Fawzia, 2011) to obtain the compressive and tensile stress-strain of concrete strength used in order to generate any cracks formation in concrete against the loading (Hanif, Ibrahim, Ghaedi, Ahad, & Sardar, 2018). The interaction used are embedded region method and tie constraint contact technique to create bond interaction between the truss element of steel reinforcement and the concrete element, meanwhile embedded-region was used as interaction to constraint the two-node beam elements steel reinforcement and the surrounding concrete element in order to simulate and assume full perfect bond behaviour as recommended by (Najafgholipour, Dehghan, Doshabi, & Niroomandi, 2017).…”