A state of the art on the structural performance of fabric formwork systems

Tahmoorian, Farzaneh; Nemati, Saeed; Soleimani, Anahita

doi:10.5267/j.esm.2019.8.005

Cited by 11 publications

(3 citation statements)

References 23 publications

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“…In heavy traffic roads, the most prevalent treatment is to place an overlay on the old pavement. The HMA overlay is the common type of resurfacing on old asphalt pavements 1–4 . Due to the lack of proper construction of existing pavement, several cracks (called reflective cracks or bottom‐up cracks [BUC]) are often propagated in the overlay due to the passage of the vehicles.…”

Section: Introductionmentioning

confidence: 99%

“…The HMA overlay is the common type of resurfacing on old asphalt pavements. [1][2][3][4] Due to the lack of proper construction of existing pavement, several cracks (called reflective cracks or bottom-up cracks [BUC]) are often propagated in the overlay due to the passage of the vehicles. The main mechanism of growing a reflective crack is the vertical and horizontal deformation of the existing pavement and overlay.…”

Section: Introductionmentioning

confidence: 99%

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Mixed mode I+II fracture parameters and cracking trajectory of heterogeneous multilayer pavement structure containing reflective crack

Ziari

Aliha

Fard

et al. 2022

Fatigue Fract Eng Mat Struct

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Using aggregate generation and packing algorithm technique coupled with finite element method, a part of reconstructed asphalt pavement structure with five layers and containing a bottom-up crack was simulated. For more realistic modeling and more accurate analyzing the cracking behavior of pavement, a region surrounding the initial crack (and bottom-up crack) region and its neighborhood was modeled as a heterogeneous two-phase (aggregate/mastic) mixture. The results of numerical analyses showed that a significant difference exists between the crack tip fracture parameters (i.e., K I , K II , K eff , T-stress, and Biaxiality ratio) of the homogenous and heterogeneous models. The heterogeneous simulation (in this case study) leads to approximately 70% reduction in the effective stress intensity factor. Furthermore, it was shown that the fracture trajectory of a simulative reflective cracking (SRC) test conducted on a real bilayer asphalt beam sample can be predicted well by modeling the beam layers as a heterogeneous two-phase mixture. K E Y W O R D Saggregate generation and packing algorithms, bottom-up crack, finite element method, fracture parameters, reflective cracking trajectory, two-phase heterogeneous asphalt modeling

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mixed mode I+II fracture parameters and cracking trajectory of heterogeneous multilayer pavement structure containing reflective crack

Ziari

Aliha

Fard

et al. 2022

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…Doubly curved thin concrete shell structures are very efficient building structures, as they can be designed with a high stiffness and structural stability (Tahmoorian et al, 2020;Palagi, 2020;Yang et al, 2019). Comparatively little material is needed to span large areas, e.g.…”

Section: Introductionmentioning

confidence: 99%

Parameter Identification for Digital Fabrication: A Gaussian Process Learning Approach

Stürz¹,

Khosravi²,

Smith³

2020

Preprint

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Tensioned cable nets can be used as supporting structures for the efficient construction of lightweight building elements, such as thin concrete shell structures. To guarantee important mechanical properties of the latter, the tolerances on deviations of the tensioned cable net geometry from the desired target form are very tight. Therefore, the form needs to be readjusted on the construction site. In order to employ model-based optimization techniques, the precise identification of important uncertain model parameters of the cable net system is required. This paper proposes the use of Gaussian process regression to learn the function that maps the cable net geometry to the uncertain parameters. In contrast to previously proposed methods, this approach requires only a single form measurement for the identification of the cable net model parameters. This is beneficial since measurements of the cable net form on the construction site are very expensive. For the training of the Gaussian processes, simulated data is efficiently computed via convex programming. The effectiveness of the proposed method and the impact of the precise identification of the parameters on the form of the cable net are demonstrated in numerical experiments on a quarter-scale prototype of a roof structure.

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The Impact of Glass Fiber on Controlled Permeable Formwork Self-Compacting Concrete

Kandasamy,

Syed Ibrahim,

Pannirselvam

2023

Lecture Notes in Civil Engineering

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A state of the art on the structural performance of fabric formwork systems

Cited by 11 publications

References 23 publications

Mixed mode I+II fracture parameters and cracking trajectory of heterogeneous multilayer pavement structure containing reflective crack

Mixed mode I+II fracture parameters and cracking trajectory of heterogeneous multilayer pavement structure containing reflective crack

Parameter Identification for Digital Fabrication: A Gaussian Process Learning Approach

The Impact of Glass Fiber on Controlled Permeable Formwork Self-Compacting Concrete

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