Development of CSMM-based shell element for reinforced concrete structures. (1st February 2017)

• Record Type: Journal Article
• Authors: Luu, C.H.; Mo, Y.L.; Hsu, Thomas T.C.
• Is Part Of: Engineering structures. Volume 132(2017:Feb. 01)
• Page Start: 778
• Page End: 790
• Publication Date: 2017-02-01
• Subjects: Reinforced concrete -- Shell element -- Constitutive model -- Nonlinear finite element; Structural engineering -- Periodicals; Structural analysis (Engineering) -- Periodicals; Construction, Technique de la -- Périodiques; Génie parasismique -- Périodiques; Pression du vent -- Périodiques; Earthquake engineering; Structural engineering; Wind-pressure; Periodicals; 624.105
• DOI: 10.1016/j.engstruct.2016.11.064
• Languages: English
• ISSNs: 0141-0296

Abstract

Highlights: The development of a finite element program for reinforced concrete structures includes three components, namely modeling, formulation and implementation. In this paper, the Cyclic Softened Membrane Model (CSMM)[21] is adopted for the simulation of reinforced concrete shell-type structures. The major contributions of this study are the formulation and the implementation, which resulted in a finite element program called Simulation of Three Dimensional Concrete Structures (SCS-3D). The CSMM-based shell element implemented in the finite element program SCS-3D can predict accurately the hysteretic loops of three dimensional RC shell structures subjected to seismic loading. Abstract: Reinforced concrete shell structures have been widely used in a variety of modern engineering applications. It is found from earthquake reconnaissance that reinforced concrete (RC) shell structures, such as nuclear containments, cooling towers, roof domes, shear walls, etc., are the key elements in resisting earthquake disturbances. This paper presents the development of a finite element analysis (FEA) program, SCS-3D, to predict the inelastic behavior of RC shell structures. In the program, a Cyclic Softened Membrane Model (CSMM)-based shell element is developed based on the degenerated shell theory with a layered approach and taking into account the CSMM developed at the University of Houston. To form the FEA program, the constitutive relation modules and the analysis procedure were implemented into a finite element program development framework, OpenSees developed at UC Berkeley. Several large-scale structural tests were employed to validate the developed FEA program, including RC panels subjected to a combination of shear and bending, three-dimensional RC shear wall and cylindrical RC tanks subjected to reversed cyclic loading.