Numerical modelling of cracking in gravity dam under static and seismic loadings with multiple pre-embedded discontinuity FEM

Saksala, Timo; Mäkinen, Jari

doi:10.1016/j.prostr.2020.10.091

Cited by 4 publications

(3 citation statements)

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“…The many numerical approaches and various computerized algorithms are utilized to solve and analyze issues that include a problem's structural and material components. The analysis of the consequences of these significant factors consists of many essential characteristics, such as the circle thickness and the material composite system [14,16].…”

Section: Methodsmentioning

confidence: 99%

“…Both static and dynamic analysis are within its scope of capability. Since well over twenty years ago, it has established itself as the top program for finite element analysis [16]. It is a highly unique and robust instrument that may be utilized in engineering to tackle various issues.…”

Section: Methodsmentioning

confidence: 99%

“…When shear stresses are present, using Fibers Reinforced Concrete (FRC) can eliminate the need for conventional rebar. That results in savings in terms of the amount of time spent sitting, the amount of labor force required [16], the weight of the finished product, and a reduction in overall production costs [17][18][19][20][21][22].…”

Section: 1 Problem Statementmentioning

confidence: 99%

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Optimization of Hollow Core Slab Strength Based on SFRC Orientation

Boushi¹,

Naimi²

2023

MMEP

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The construction industry has been broadly developed and improved over the last decades. One of the functional innovations in this sector is the employment of steel fibers. This work assesses the impacts of using Steel Fiber Reinforced Concrete (SFRC) on the properties of hollow-core slabs. The hollow core slab (HCS) is considered in this research. Also, this study explored the influence of utilizing some SFRC fractions on the characteristics of hollow-core slabs. Four case studies were addressed, including (A) Conventional concrete, (B) Concrete with Type 1 SFRC, (C) Concrete with Type 2 of SFRC with a ratio of 0.5%, and (D) Concrete with Type 2 with a portion of 1%. ANSYS software package was used to guide numerical analysis and modeling of HCS and identify major parameters that affect the HCS performance with the help of Finite Element Analysis (FEA). Depending on the numerical results, it was found that using SFRC between 0.5% and 1% in concrete tubes tested numerically provided significant rates of durability, minimized deflection, and enhanced the mechanical behavior of concrete. Furthermore, the work outcomes confirmed that optimum displacement was attained when the SFRC ratio was 1.5%, corresponding to load values of 25 kN to 200 kN. Besides, the findings affirmed that using the first type of SFRC accomplished a considerable decline in the deflection of concrete. Deflection reduction ratios of 4.16% and 6.23% were obtained after adding the first and second types of SFRC into the reinforced hollow concrete core, respectively. Meanwhile, adding the first and second types of SFRP into non-reinforced hollow concrete core accomplished a reduction portion of 12.2% and 20.39%, respectively.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%