FINITE‑ ELEMENT MODELING OF UHPC HYBRID BRIDGE DECK CONNECTIONS

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NASRIN SABREENA; IBRAHIM AHMED

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Paper Information

Journal: INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING Year:2018 | Volume:10 | Issue:3 Page(s): 199-210

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Information Journal Paper

Title

FINITE‑ ELEMENT MODELING OF UHPC HYBRID BRIDGE DECK CONNECTIONS

Author(s)

NASRIN SABREENA | IBRAHIM AHMED | Issue Writer Certificate

Keywords

NONLINEAR STATIC ANALYSIS ·

ULTRA-HIGH-PERFORMANCE CONCRETE (UHPC) ·

BRIDGE DECK CONNECTIONS ·

SENSITIVITYANALYSIS ·

ACCELERATED CONSTRUCTION

Abstract

In recent years, linked bridge deck elements have gained popularity for facilitating more durable components in bridgedecks, but these components require field-applied connections for constructing the entire bridge. Ultra-high-performanceconcrete (UHPC) is started to be a major material for closure pours in bridges and various Department of Transportationshave been developing guidelines. UHPC is known by its superior quality than conventional concrete in terms of constructability, strength and durability. So far, very limited data are available on the finite-element modeling (FEM) of hybrid bridgedeck connections. In this study, FEMs have been presented to define the crucial factors affecting the response of bridgehybrid deck panel system under monotonic loads. The commercial software ABAQUS was used to validate the modes andto generate the data presented herein and the concrete damage plasticity was used to simulate both conventional concrete andUHPC. Numerical results were validated using available experimental data. The key parameters studied were the mesh size, the dilation angle, reinforcement type, concrete models, steel properties, and the contact behavior between the UHPC andthe conventional concrete. The models were found to capture the load– deflection response of experimental results, failuremodes, crack patterns and ductility indices show satisfactorily response. A sensitivity test was also conducted by consideringvarious key parameters such as concrete and steel constitutive models and their associated parameters, mesh size, andcontact behavior. It is perceived that increasing the dilation angle leads to an increase in the initial stiffness of the model. Thedamage in concrete under monotonic loading is found higher in normal concrete than UHPC with no signs of de-bondingbetween the two materials. Changing the dilation angle from 20° to 40° results in an increase of 7. 81% in ultimate load for thepanel with straight reinforcing bars, whereas for the panel with headed bars, the increase in ultimate load was found 8. 56%.

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APA: Copy

NASRIN, SABREENA, & IBRAHIM, AHMED. (2018). FINITE‑ ELEMENT MODELING OF UHPC HYBRID BRIDGE DECK CONNECTIONS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, 10(3), 199-210. SID. https://sid.ir/paper/319899/en

Vancouver: Copy

NASRIN SABREENA, IBRAHIM AHMED. FINITE‑ ELEMENT MODELING OF UHPC HYBRID BRIDGE DECK CONNECTIONS. INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING[Internet]. 2018;10(3):199-210. Available from: https://sid.ir/paper/319899/en

IEEE: Copy

SABREENA NASRIN, and AHMED IBRAHIM, “FINITE‑ ELEMENT MODELING OF UHPC HYBRID BRIDGE DECK CONNECTIONS,” INTERNATIONAL JOURNAL OF ADVANCED STRUCTURAL ENGINEERING, vol. 10, no. 3, pp. 199–210, 2018, [Online]. Available: https://sid.ir/paper/319899/en

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