A Study on Design Methods of Rc Structures Based on Fem Analysis

Kamezawa, Yasushi; Hayashi, Nobuyuki; Iwasaki, Ikuo; Tada, Masaru

doi:10.2208/jscej.1994.502_103

Cited by 3 publications

(3 citation statements)

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“…S S S (10) Concrete must resist both the difference between the normal applied stresses and the normal stresses carried by the reinforcement (σci = σi -fti), and the three shear stress components (τxy, τxz, τyz); reinforcement, on the other hand, must resist the equivalent reinforcement stresses ftx, fty, ftz (reinforcement bar stresses distributed over the concrete area). It is assumed that reinforcing steel cannot carry shear stress.…”

Section: Rsm: the System Of Resistancementioning

confidence: 99%

“…Smirnov [9], addressed, for the first time, equations for the reinforcement design in concrete solid elements from three-dimensional stress tensors, focusing on the application in hydroelectric structures. Kamezawa et al [10] proposed additional formulas for the computation of the required reinforcement, but these were still limited to stress combinations yielding reinforcement in three directions. Marti, Mojsilović and Foster published two thorough detailed works on the subject [11], [12], clearly identifying biaxial and uniaxial compression design cases, and representing graphically the solution with the aid of Mohr circles.…”

Section: Introductionmentioning

confidence: 99%

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Design of reinforced concrete structures from three-dimensional stress fields

Chen

Bittencourt

Bella

2023

Rev. IBRACON Estrut. Mater.

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The design of reinforced concrete structures starting from a linear analysis is allowed by design codes and leads to safe solutions. The structural model built for the analysis may be composed not only of bar and shell elements, but also solid elements. In the present work, the formulation of the Reinforced Solid Method (RSM) was reviewed and applied to the Ultimate Limit State design of a reinforced concrete member, with the computation of the required reinforcement and concrete check of each individual solid element within the structural model. The results were visualized in a post-processor and validated by numerical simulations. The RSM effectively allows for the design of concrete structures with general geometry and loading conditions, whilst identifying local effects throughout the volume of the structure.

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Section: Rsm: the System Of Resistancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of reinforced concrete structures from three-dimensional stress fields

Chen

Bittencourt

Bella

2023

Rev. IBRACON Estrut. Mater.

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show abstract

“…Smirnov 3 first derived the design equations for a solid element in which the applied stresses were equilibrated with reinforcement stresses in three directions. Kamezawa et al 4 derived additional equations for computing the required reinforcement, but they were still restricted to the particular design case whereby reinforcement was required in three directions simultaneously. Marti, Mojsilović, and Foster 5,6 presented two detailed works on the subject, in which uniaxial and biaxial compression stress states developed in concrete were identified.…”

Section: Introductionmentioning

confidence: 99%

Design of reinforced concrete structures based on three‐dimensional stress fields

Chen

Bittencourt

Bella

2023

Structural Concrete

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The ultimate limit state design of reinforced concrete members usually derives from the analyses of structural models composed of unidimensional or bidimensional elements (bar and shell elements, respectively). Less recurrent in these structural models is the use of solid elements, which may be ascribed to the difficulties arising when dimensioning the structure for the complete stress field with six stress components (σx, σy, σz, τxy, τxz, τyz) derived from the analyses. In the present work, the design method for three‐dimensional stress fields combining linear analysis and limit design is revisited, with the description of the resisting mechanism in which the applied stresses are balanced with stresses in the concrete and in the reinforcement. Expressions for the verification of concrete crushing and the evaluation of the required reinforcement are deduced analytically and interpreted physically. The design process is organized into four design cases, according to the internal stresses mobilized in concrete. The proposed equations are presented in a framework for direct application to engineering practice, as demonstrated in noted design examples for selected stress states.

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Computation of optimal concrete reinforcement in three dimensions

Hoogenboom¹,

Boer²

2010

Computational Modelling of Concrete Structures

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A Study on Design Methods of Rc Structures Based on Fem Analysis

Cited by 3 publications

References 0 publications

Design of reinforced concrete structures from three-dimensional stress fields

Design of reinforced concrete structures from three-dimensional stress fields

Design of reinforced concrete structures based on three‐dimensional stress fields

Computation of optimal concrete reinforcement in three dimensions

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