A plastic-damage constitutive model for the finite element analysis of fibre reinforced concrete

In order to study the basic mechanical property of the new honeycombed-core girderless floor in cast-in-place reinforced concrete, and similarities and differences of the structural performance compared with traditional floor, we carried out the destructive stage loading test on large-scale corner columns supported reinforced concrete honeycombed-core girderless floor. And the thesis conducted finite element analysis in virtue of ANSYS software for solid slab floor, rib floor and honeycombed-core floor. The experiment indicates that honeycombed-core modules cement well with concrete around and participate in the load-carrying; the developing process, distribution and failure mode of crevice in honeycombed-core floor are similar to that of general solid girderless floor. The honeycombed-core girderless floor has higher bearing capacity and better plastic deformation capacity. The finite element analysis manifest that compared with solid slab floor, honeycombed- core floor’s dead load decreases on greater level while deformation increases little, and that compared with rib floor, honeycombed-core girderless floor has higher rigidity. So reinforced concrete honeycombed-core girderless floor is particularly suitable for long-span and large-bay building structure.

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An Assessment of Modelling Techniques for the Finite Element Analysis of Reinforced Concrete Plate and Shell Structures.

10.21236/ada192263 ◽

1988 ◽

Author(s):

Thomas J. Hughes

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Reinforced Concrete ◽

Shell Structures ◽

Element Analysis ◽

Concrete Plate ◽

Plate And Shell ◽

The Finite Element Analysis ◽

Modelling Techniques

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Simulation Analysis of Chemically Bonded Anchors in ABAQUS

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.744.174 ◽

2017 ◽

Vol 744 ◽

pp. 174-178

Author(s):

Tian Jiao Chen ◽

Yong Quan Wang ◽

Wahab Abdul Ghafar

Keyword(s):

Mechanical Properties ◽

Finite Element Analysis ◽

Finite Element ◽

Bond Strength ◽

Growth Stage ◽

Element Analysis ◽

Bond Slip ◽

Finite Element Software ◽

Plastic Damage ◽

The Finite Element Analysis

At present, the finite element analysis has been an effective method to study the mechanical properties of steel bar drawing. In this paper, finite element analysis of the influence of bond strength on anchorage performance with concrete plastic damage model based on nonlinear analysis in ABAQUS was carried out. The finite-element analysis model of the single bar was established by using the finite element software ABAQUS. The Spring2 nonlinear spring element was introduced to simulate the interface of concrete and adhesive. Chemical anchorage bond slip constitutive model was determined by Spring2 element real constants. The nonlinear characteristics of concrete materials under the single reinforcement drawing could be described with the combination of the concrete plastic damage constitutive mode and nonlinear finite element methods. The nonlinear behavior of concrete under uniaxial tension of the action, especially the crack and stress distribution, could be accurately described. In order to study the influence of adhesive bond strength of chemically-bonded rebar mechanical properties, the constitutive relation of the bonded rebar slip of test results was referenced. The nonlinear property of spring was assigned by the bond slip relationship, embodied in the F-D curve of the spring. In order to analysis the influence of bond strength on anchorage performance, the slope of linear growth stage and the peak of nonlinear growth stage in bond slip relationship curve were changed.

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Carbon Fiber Reinforced the Cracking Framework Top Side Columns Caused by Roof Temperature Deformation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.527.3 ◽

2014 ◽

Vol 527 ◽

pp. 3-6

Author(s):

Wei Zhang

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Reinforced Concrete ◽

Carbon Fiber ◽

Design Method ◽

Temperature Deformation ◽

Element Analysis ◽

The Finite Element Analysis ◽

Fiber Materials ◽

Roof Temperature

An example of horizontal cracks on the surface of reinforced concrete side-columns is presented. Based on the finite element analysis , a conclusion is made that those cracks are caused by the frame’s deformation under changing temperature. Then the way to calculate the width of such cracks is raised. The design method for the reparation by sticking carbon fiber materials to the column is also developed. Those methods are applicable in realistic works.

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