Study on Constitutive Model Considereing Hardening Process and Loading History for Early Age Concrete

Kunieda, Minoru; Srisoros, Worapong; Kishiyama, Yutaka; Nakamura, Hikaru; Ishikawa, Yoshihiro

doi:10.2208/jsceje.63.127

Cited by 4 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fracture energy is also an important factor for crack propagation and localization of cracks in concrete members. Fracture energy of early age concrete [31][32][33] and fracture energy change after cracking [34] have been reported. And a models based on such early age properties as well as plastic behavior is applied to finite element analysis [35] as well as rigid body spring-network model analysis [36] for the prediction of cracks in mass concrete.…”

Section: Strengthmentioning

confidence: 99%

Properties of early-age concrete relevant to cracking in massive concrete

Maruyama

Lura

2019

Cement and Concrete Research

154

View full text Add to dashboard Cite

show abstract

Section: Strengthmentioning

confidence: 99%

Properties of early-age concrete relevant to cracking in massive concrete

Maruyama

Lura

2019

Cement and Concrete Research

154

View full text Add to dashboard Cite

show abstract

“…Many mathematical models have been proposed that relate the stresses and deformations of concrete (Kunieda and Srisoros, 2007;Asamoto and Ishida 2006;Babu and Benipal 2005). The problem with those models is that they have been proposed for the uniaxial condition only, so their applicability in boundary value problems, as simulation of structures with multiaxial stress fields, is limited for their implementation in a finite element program.…”

Section: Proposed Constitutive Modelmentioning

confidence: 99%

Comportamiento mecánico de juntas frías lisas de concreto

Torres

Ramos-Cañón²,

Prada-Sarmiento

et al. 2016

Rev. ing. constr.

View full text Add to dashboard Cite

A smooth cold joint of concrete is an untreated weak plane caused by an interruption of the casting process, which can significantly affect the performance of a structural system. In this paper, the problem of the generation of cold joints is approached from two complementary perspectives. a) The loss of resistance due to the occurrence of cold joints is quantified through an extensive experimental program of concrete cylinders and b) a constitutive model is proposed and its performance is analyzed to simulate the time-dependent behavior of concrete under load (viscosity) and no load (setting). A loss of resistance over 30% for cold concrete cylinders with diagonal joints was found, while concrete cylinders with horizontal cold joints had no loss of resistance. Thus, the loss of resistance depends on the orientation of the cold joint with respect to the direction of the main stresses. This aspect is explained by the proposed constitutive model of viscous-reactive type, which is able to simulate the results of the experimental program. This work opens the possibility of numerical modeling of boundary value problems of structures with a cold joint and to study their influence on the structure's overall stability.

show abstract

“…Kunieda et al (2007) [9], presenta un modelo constitutivo para el concreto a edades tempranas en el cual se consideran historias de carga para el elemento en cuestión y la dependencia del tiempo de las propiedades del material, teniendo en cuenta el debilitamiento del mismo después de que el elemento empieza a agrietarse. Este modelo considera que el fraguado del concreto se da por el endurecimiento progresivo de pequeños elementos que lo conforman y que el esfuerzo total a cierta edad es la suma de los esfuerzos de los elementos ya solidificados.…”

Section: Modelos Constitutivos Del Concretounclassified

Simulación numérica del efecto de Las juntas frías en la resistencia pico de cilindros normalizados de concreto

Palacio¹

View full text Add to dashboard Cite

Una junta fría en un elemento de concreto es la formación de un plano de debilidad o articulación causado por la interrupción prolongada de suministro de mezcla fresca en el proceso de vaciado, que ocasiona pérdida de resistencia mecánica en el elemento. La pérdida de resistencia depende del tiempo de interrupción de mezcla, es decir, del tiempo de formación de junta fría, de la edad del concreto y del grado de inclinación del plano de la junta con respecto a la dirección de la carga.

show abstract

Study on Constitutive Model Considereing Hardening Process and Loading History for Early Age Concrete

Cited by 4 publications

References 8 publications

Properties of early-age concrete relevant to cracking in massive concrete

Properties of early-age concrete relevant to cracking in massive concrete

Comportamiento mecánico de juntas frías lisas de concreto

Simulación numérica del efecto de Las juntas frías en la resistencia pico de cilindros normalizados de concreto

Contact Info

Product

Resources

About