A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Interfacial Properties between Infilled Autoclaved Aerated Concrete and Ribbed Frame for Multi-Ribbed Composite Wall Structure
Multi-ribbed composite wall structure (MRCS) is composed of densely distributed ribbed frames, including ribbed beams and columns and autoclaved aerated concrete (AAC) filled inside ribbed frames. This paper investigates the interfacial properties between ribbed frames and infilled AAC based on a combined experimental and finite element (FE) study. Slant shear tests were first conducted to evaluate the effect of joint angles on the interfacial strength, based on which a failure envelope of the interface was proposed. An FE model for the infilled frame under diagonal loading was then constructed. Cohesive elements were used to simulate the interface. The constitutive relations of the cohesive elements were defined based on the results from the slant shear tests. Good correlations between the experimental and FE results can be obtained. Finally, quadratic nominal stress damage initiation criterion (QUADSCRT), scalar stiffness degradation (SDEG), and element stresses are used to describe crack propagation and evaluate the interface.
Interfacial Properties between Infilled Autoclaved Aerated Concrete and Ribbed Frame for Multi-Ribbed Composite Wall Structure
Multi-ribbed composite wall structure (MRCS) is composed of densely distributed ribbed frames, including ribbed beams and columns and autoclaved aerated concrete (AAC) filled inside ribbed frames. This paper investigates the interfacial properties between ribbed frames and infilled AAC based on a combined experimental and finite element (FE) study. Slant shear tests were first conducted to evaluate the effect of joint angles on the interfacial strength, based on which a failure envelope of the interface was proposed. An FE model for the infilled frame under diagonal loading was then constructed. Cohesive elements were used to simulate the interface. The constitutive relations of the cohesive elements were defined based on the results from the slant shear tests. Good correlations between the experimental and FE results can be obtained. Finally, quadratic nominal stress damage initiation criterion (QUADSCRT), scalar stiffness degradation (SDEG), and element stresses are used to describe crack propagation and evaluate the interface.
Interfacial Properties between Infilled Autoclaved Aerated Concrete and Ribbed Frame for Multi-Ribbed Composite Wall Structure
Jing Sun (author) / Kunpeng Wang / Jianwei Zhang / An Chen
ACI structural journal ; 114
2017
Article (Journal)
English
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