Short-term flexural behaviour of concrete filled pultruded GFRP cellular and tubular sections with pin-eye connections for modular retaining wall construction

Ferdous, Wahid; Almutairi, Ahmed D.; Yuan, Huang; Bai, Yu

doi:10.1016/j.compstruct.2018.08.025

Cited by 52 publications

(23 citation statements)

References 42 publications

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“…Durability in the offshore environment is most commonly related to the resistance to corrosion of reinforced concrete structures, where the protection of the reinforcement plays an important role [52][53][54][55]. The durability requirements provided in the marine concrete specification UFGS-03 [38] indicate a minimum cover thickness for different exposure zones that are summarised in Table 2.…”

Section: Minimum Cover Thicknessmentioning

confidence: 99%

Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis

Liu

et al. 2020

Materials

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Chloride-induced corrosion is the main threat to the service life of concrete structures. In order to better investigate chloride distribution in offshore concrete, this study proposed a new prediction model based on statistical analysis as well as a large body of experimental results collected from various sources. A detailed discussion found that the key influential parameters, such as diffusion coefficient ( D ), surface chloride concentration ( C S ) and penetration depth ( x ) are all highly time-dependent. The exposure zone, water–cement ratio and service time were also considered as relevant factors. The proposed model is then validated by two alternative tests and the results suggest that it is feasible in predicting the chloride content and penetration depth of concrete structures in a marine environment under chloride attack.

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Section: Minimum Cover Thicknessmentioning

confidence: 99%

Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis

Liu

et al. 2020

Materials

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“…The load value of each level is measured and recorded after each level passes 3 min steady period. In order to determine the cracking load precisely, the loading speed should be reduced before the initial diagonal crack is predicted [36,37]. When the loading is reaching the ultimate load, then a continuous and slow loading will be commenced until the destruction of specimen.…”

Section: Test Setup and Instrumentationmentioning

confidence: 99%

Experimental Study on Shear Capacity of High Strength Reinforcement Concrete Deep Beams with Small Shear Span–Depth Ratio

Zhang

Xie

et al. 2020

Materials

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This study aimed to investigate the shear capacity performance for eight deep beams with HTRB600 reinforced high strength concrete under concentrated load to enable a better understanding of the effects of shear span–depth ratio, longitudinal reinforcement ratio, vertical stirrup ratio and in order to improve design procedures. The dimension of eight test specimens is 1600 mm × 200 mm × 600 mm. The effective span to height ratio l0/h is 2.0, the shear span–depth ratio λ is 0.3, 0.6 and 0.9, respectively. In addition, the longitudinal reinforcement ratio ρs is set to 0.67%, 1.05%, 1.27%, and the vertical stirrup ratio is taken to be 0%, 0.25%, 0.33%, 0.5%. Through measuring the strain of steel bar, the strain of concrete and the deflection of mid-span, the characteristics of the full process of shear capacity, the failure mode and the load deflection deformation curve were examined. The test results showed that the failure mode of deep beams with small shear span–depth ratio is diagonal compression failure, which is influenced by the layout and quantity of web reinforcement. The diagonal compression failure could be classified into two forms: crushing-strut and diagonal splitting. With decreasing of shear span–depth ratio and increasing longitudinal reinforcement ratio, the shear capacity of deep beams increases obviously, while the influence of vertical web reinforcement ratio on shear capacity is negligible. Finally, the shear capacity of eight deep beams based on GB 50010-2010 is calculated and compared with the calculation results of ACI 318-14, EN 1992-1-1:2004 and CSA A23.3-04, which are based on strut-and-tie model. The obtained results in this paper show a very good agreement with GB50010-2010 and ACI 318-14, while the results of EN 1992-1-1:2004 and CSA A23.3-04 are approved to be conservative.

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“…In particular, further developments will have an influence on areas such as artificial intelligence, robotics, the Internet of Things, additive manufacturing, nanotechnology and material engineering. The technologies mentioned above have functioned as initiation factors in the development of innovative solutions in the construction sector [2][3][4][5], which are related to the digital processing of new materials and technologies and the automated construction of buildings and structures [6].…”

Section: Introductionmentioning

confidence: 99%

Automation in the Construction of a 3D-Printed Concrete Wall with the Use of a Lintel Gripper

et al. 2020

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Developments in the automation of construction processes, observable in recent years, is focused on speeding up the construction of buildings and structures. Additive manufacturing using concrete mixes are among the most promising technologies in this respect. 3D concrete printing allows the building up of structure by extruding a mix layer by layer. However, the mix initially has low capacity to transfer loads, which can be particularly troublesome in cases of external components that need to be placed on top such as precast lintels or floor beams. This article describes the application of additive manufacturing technology in the fabrication of a building wall model, in which the door opening was finished with automatic lintel installation. The research adjusts the wall design and printing process, accounting for the rheological and mechanical properties of the fresh concrete, as well as design requirements of Eurocode. The article demonstrates that the process can be planned precisely and how the growth of stress in fresh concrete can be simulated, against the strength level developed. The conclusions drawn from this research will be of use in designing larger civil structures. Furthermore, the adverse effects of concrete shrinkage on structures is also presented, together with appropriate methods of control.

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Short-term flexural behaviour of concrete filled pultruded GFRP cellular and tubular sections with pin-eye connections for modular retaining wall construction

Cited by 52 publications

References 42 publications

Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis

Prediction of Chloride Distribution for Offshore Concrete Based on Statistical Analysis

Experimental Study on Shear Capacity of High Strength Reinforcement Concrete Deep Beams with Small Shear Span–Depth Ratio

Automation in the Construction of a 3D-Printed Concrete Wall with the Use of a Lintel Gripper

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