Steel–concrete–steel sandwich system in Arctic offshore structure: Materials, experiments, and design

Yan, Jia‐Bao; Liu, Xuemei; Liew, J.Y. Richard; Qian, Xudong; Zhang, Min-Hong

doi:10.1016/j.matdes.2015.11.084

Cited by 79 publications

(17 citation statements)

References 16 publications

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“…Since the low temperature T , w/c ratio, and water content W c are the three key parameters that influences the I fcu values, this paper attempts to build a mathematical description between the I fcu and parameters of T , w/c ratio, and water content W c . Following the same methods adopted in the previous studies on strengths of steel and concrete under low temperatures, exponential model was assumed as follows:

I_{fcu} = {AT}^{B} β^{C} e^{{italicDW}_{c}},

where A–D are constants obtained from the regression analysis; T denotes temperature, in K; β denotes w/c ratio; W c denotes water content, in %.…”

Section: Analysis and Discussionmentioning

confidence: 99%

Experimental studies and analysis on compressive strength of normal‐weight concrete at low temperatures

Xie

Yan

2017

Structural Concrete

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The construction of liquid nitrogen gas storages and engineering structures in cold regions exposed reinforced concrete structures to low temperatures. This paper investigates the compressive strength of normal‐weight concrete under low temperatures to −165°C through a 174‐specimen test program. The key parameters studied in this test program included low temperature T ranging from −165 to +20°C, water/cement ratio ranging from 0.33 to 0.57, and water content Wc ranging from 0 to 6%. Their influences on the compressive strength of the concrete under low temperature were highlighted and analyzed. With the scanning electron microscope (SEM), the influence of these parameters on the microstructures of the concrete under low temperature was observed and presented. These test data and SEM analyses revealed the failure mechanism and provided proofs on the improvements of the compressive strength of the concrete under low temperature. Based on these test data, a mathematical model has developed to describe the relationship between the increasing factor of the compressive strength of the concrete under low temperatures and the influencing parameters of T, w/c ratio, and Wc. Finally, design equations are provided to predict the increasing factor of the compressive strength of the concrete under low temperature.

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I_{fcu} = {AT}^{B} β^{C} e^{{italicDW}_{c}},

where A–D are constants obtained from the regression analysis; T denotes temperature, in K; β denotes w/c ratio; W c denotes water content, in %.…”

Section: Analysis and Discussionmentioning

confidence: 99%

Experimental studies and analysis on compressive strength of normal‐weight concrete at low temperatures

Xie

Yan

2017

Structural Concrete

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“…In SCS walls, different types of materials, such as fiber-reinforced polymer (FRP) concrete, foamed concrete, lightweight concrete (LWC), ultra-lightweight cementitious composite material (ULCC), and high strength steel (HSS), are used to improve the structural performance such as compressive and shearing capacities, which are lighter weight compared with conventional walls [7][8][9][10]. To the best of the authors' knowledge, none of these studies have implemented damping materials into practice to optimize the performance and extend the application of such potential composite structures.…”

Section: Introductionmentioning

confidence: 99%

Axial Compressive Behavior of Steel-Damping-Concrete Composite Wall

Zhang

Zhu

2019

Applied Sciences

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This paper presents a novel steel-damping-concrete (SDC) composite wall as a vertical element for high-rise buildings and nuclear power plants etc. In an SDC composite wall, a damping layer is sandwiched between the concrete core and steel plates to reduce structural response based on its damping characteristics under axial and seismic loads. To ensure that an SDC composite wall exhibits a comparable compressive resistance as a steel-concrete-steel (SCS) composite wall, two types of reinforcing approaches including steel sheets and sleeves are utilized to enhance the weakness of the damping layer on the concrete core. The compressive performance of the reinforced SDC composite wall is numerically and analytically investigated using finite element (FE) simulations by ABAQUS. The influences of several key parameters including the type of reinforcement, the thickness of the damping layer, steel plates, and concrete core, the binding bar spacing as well as the diameter of steel sheets on the compressive performance of the composite walls are investigated through numerical analyses. The results show that while only embedding the rubber interlayer in the composite wall leads to the decrease of compressive resistance of the composite wall, the steel sheets and sleeves can provide the confinement effect on concrete core efficiently and improve the compressive resistance and ductility of walls. Based on the available methods in the current design codes such as Eurocode 4, AISC-360, a theoretical model is developed to predict the ultimate compressive resistance of SDC walls. The predictions show a reasonable correlation when compared with the numerical results.

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“…Various types of engineering constructions have been proposed and used for the Arctic oil and gas explorations, e.g., artificial island, jacket structure, caisson-retained structure, gravity based conical structure, and floating structures. Marshall et al [1] and Yan et al [2] have developed gravity based conical structures (GBCSs) with curved and flat steel-concrete-steel (SCS) type of ice-resisting wall, respectively (see Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

“…Compared with the traditional RC structure, the transparent advantages of the SCS sandwich plates include saving formwork for concrete casting and labour force for site construction, avoiding the detailing and fabricating of the reinforcements, promising modular construction that improves the construction efficiency, and offering external steel skins as blast-or impact-resistant membranes. This type of structure exhibits versatile potential application in civil and offshore constructions, e.g., shear walls, protective structures, decks in bridges and offshore structures, nuclear walls, containments for oil and liquid natural gas, and ice-resistant walls [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

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Behaviour of Steel-Concrete-Steel Sandwich Plates Under Different Ice-Contact Pressure

2019

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Steel-concrete-steel (SCS) sandwich plate has been developed as the ice-resisting walls in Arctic offshore constructions. This paper investigates the ultimate strength behaviour of SCS sandwich plates under different surface loading area by numerical analysis method. This paper adopted the finite element model that was developed and extensively validated by the test results. Through the 35-case study, the ultimate strength behaviour of the SCS sandwich plate under different surface loading area was investigated. The general load-deflection behaviour of the SCS sandwich plates under different loading area were analysed and summarized. Different failure modes of the SCS sandwich plate under different surface loading area were reported and discussed. The load-transferring mechanism of the SCS sandwich plate under different surface loading area were analysed. Finally, considering the applications of these SCS sandwich plate as the ice-resisting wall in the Arctic offshore constructions, these FE predicted ultimate resistances of the SCS sandwich plates under different surface loading area were compared with the corresponding ice-contact pressure predicted by the design codes. These comparisons confirmed the applicability of developed SCS sandwich plate as the ice-resisting wall in Arctic offshore constructions.

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Steel–concrete–steel sandwich system in Arctic offshore structure: Materials, experiments, and design

Cited by 79 publications

References 16 publications

Experimental studies and analysis on compressive strength of normal‐weight concrete at low temperatures

Experimental studies and analysis on compressive strength of normal‐weight concrete at low temperatures

Axial Compressive Behavior of Steel-Damping-Concrete Composite Wall

Behaviour of Steel-Concrete-Steel Sandwich Plates Under Different Ice-Contact Pressure

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