Bending moment ≈ Bending moment
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Distributed fibre optic sensing of strains on buried full-scale PVC pipelines crossing a normal fault Open
Seismic faulting is extremely detrimental to buried pipelines owing to bending moments and axial forces generated by the soil–pipe interaction. Pipe responses to ground rupture are usually evaluated by beam-on-spring analysis. However, the…
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Influence of debris flow solid fraction on rigid barrier impact Open
The dynamics of debris flows are fundamentally governed by the interaction between the solid and fluid phases. However, current approaches used to estimate impact load treat debris flow as an equivalent fluid without considering solid–flui…
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Investigation of hydrodynamics of water impact and tail slamming of high-speed water entry with a novel immersed boundary method Open
High-speed water entry is a transient hydrodynamic process that is accompanied by strongly compressible flow, free surface splash, cavity evolution and other nonlinear hydrodynamic phenomena. To address these problems, a novel fluid–struct…
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Wake meandering effects on floating wind turbines Open
As more floating farms are being developed, the wake interaction between multiple floating wind turbines (FWTs) is becoming increasingly relevant. FWTs have long natural periods in certain degrees of freedom, and the large‐scale movement o…
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Monotonic laterally loaded pile testing in a stiff glacial clay till at Cowden Open
This paper describes the results obtained from a field testing campaign on laterally loaded monopiles conducted at Cowden, UK, where the soil consists principally of a heavily overconsolidated glacial till. These tests formed part of the P…
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Analytical springback assessment in flexible stretch bending of complex shapes Open
Stretch bending is commonly used in the fabrication of profile-based shapes. However, one of the challenges in many bending-type forming processes is controlling springback upon unloading. Springback appears sensitive to upstream and in-pr…
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Numerical investigation of the effects of tunnelling on existing tunnels Open
Construction of the Crossrail tunnels just beneath the existing Central line tunnels at the northern side of Hyde Park provided the impetus for this paper. A basic three-dimensional (3D) finite-element (FE) model was developed to study a g…
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Integrated design optimization of spar floating wind turbines Open
A linearized aero-hydro-servo-elastic floating wind turbine model is presented and used to perform integrated design optimization of the platform, tower, mooring system, and blade-pitch controller for a 10 MW spar floating wind turbine. Op…
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Monotonic laterally loaded pile testing in a dense marine sand at Dunkirk Open
The results obtained from a field testing campaign on laterally loaded monopiles, conducted at a dense sand site in Dunkirk, northern France are described. These tests formed part of the PISA project on the development of improved design m…
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Integrated design of downwind land‐based wind turbines using analytic gradients Open
Wind turbines are complex systems where component‐level changes can have significant system‐level effects. Effective wind turbine optimization generally requires an integrated analysis approach with a large number of design variables. Opti…
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An efficient frequency-domain model for quick load analysis of floating offshore wind turbines Open
A model for Quick Load Analysis of Floating wind turbines (QuLAF) is presented and validated here. The model is a linear, frequency-domain, efficient tool with four planar degrees of freedom: floater surge, heave, pitch and first tower mod…
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Analytical prediction for ground movements and liner internal forces induced by shallow tunnels considering non-uniform convergence pattern and ground-liner interaction mechanism Open
Current studies for tunneling-induced ground movements provide little information on the complex interaction between the tunnel liner and the surrounding soils. In particular, little attention is paid to the internal force analyses for seg…
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Effect of Fiber Reinforced Polymer Tubes Filled with Recycled Materials and Concrete on Structural Capacity of Pile Foundations Open
This paper deals with analyzing the structural responses of glass-fiber-reinforced polymer (GFRP) tubes filled with recycled and concrete material for developing composite piles, as an alternative to traditional steel reinforced piles in b…
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Evaluation of seismic performance of pile‐supported models in liquefiable soils Open
Summary The seismic performance of four pile‐supported models is studied for two conditions: (i) transient to full liquefaction condition, i.e. the phase when excess pore pressure gradually increases during the shaking; (ii) full liquefact…
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Deformation response of roof in solid backfilling coal mining based on viscoelastic properties of waste gangue Open
Solid backfill mining (SBM) is a form of green mining, the core of which is to control and minimize the deformation and movement of strata above longwall coal mines. Establishing a mechanical model that can reliably describe roof deformati…
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Longitudinal mechanical response of tunnels under active normal faulting Open
This paper aims to clarify the mechanism of the longitudinal response of a tunnel under normal faulting via a comprehensive analysis of available experimental data and numerical simulations. Four 1 g condition model tests were reviewed and…
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A novel multi-dimensional reliability approach for floating wind turbines under power production conditions Open
Floating offshore wind turbines (FOWT) generate green renewable energy and are a vital part of the modern offshore wind energy industry. Robust predicting extreme offshore loads during FOWT operations is an important safety concern. Excess…
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Bivariate reliability analysis for floating wind turbines Open
Wind turbines are designed to withstand extreme wind- and wave-induced loads, hence a reliability study is vital. This study presents a bivariate reliability approach, suitable for accurate assessment of critical forces and moments, occurr…
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Observations from Cyclic Tests on Deep, Wide-Flange Beam-Columns Open
As part of a National Institute of Standards and Technology (NIST) comprehensive research program to study the seismic behavior and design of deep, wide-flange structural steel beam-column members for application in seismic design and cons…
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Optimization of the truss beam. Verification of the calculation results Open
The article presents a comparison of results of optimized calculation of a truss beam which was chosen as a combined construction. The results of calculation of a beam are compared using the method based on the properties of spacer systems…
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Effects of vertical loading on lateral screw pile performance Open
The offshore wind energy sector faces new challenges as it moves into deeper water deployment. To meet these challenges, new and efficient foundation solutions are required. One potential solution is to upscale onshore screw piles but they…
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Gaidai-Xing reliability method validation for 10-MW floating wind turbines Open
In contrast to well-known bivariate statistical approach, which is known to properly forecast extreme response levels for two-dimensional systems, the research validates innovative structural reliability method, which is particularly appro…
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Seismic soil–culvert interaction Open
Box culverts may be constructed in active seismic areas, where ground shaking or ground failures can impose considerable earth pressures on them. In this study, the seismic response of box culverts was investigated experimentally and numer…
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Seismic design and performance of dry-assembled precast structures with adaptable joints Open
Previous research projects and post-earthquake field observation showed that dry-assembled precast frame structures with hinged beams and cantilever columns restrained at their base, if correctly designed and detailed, can attain good seis…
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FAST.Farm development and validation of structural load prediction against large eddy simulations Open
FAST.Farm is a mid‐fidelity engineering tool developed by the National Renewable Energy Laboratory targeted at accurately and efficiently predicting wind turbine power production and structural loading in wind farm settings, including wake…
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Advances and Trends in Forming Curved Extrusion Profiles Open
Curved profiles/sections have been widely used for manufacturing lightweight structures with high stiffness and strength due to aerodynamics, structural properties, and design reasons. Structural components fabricated using curved aluminum…
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Reliability analysis of shallow tunnels using the response surface methodology Open
A probabilistic study of a circular tunnel excavated in a soil mass using the response surface methodology (RSM) is presented. A deterministic model based on two-dimensional numerical simulations in a transversal section is used, and the s…
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Mechanical Behavior of a Partially Encased Composite Girder with Corrugated Steel Web: Interaction of Shear and Bending Open
The synergistic use of partially encased concrete and composite girders with corrugated steel webs (CGCSWs) has been proposed to avoid the buckling of corrugated steel webs and compression steel flanges under large combined shear force and…
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Stress evolution and support mechanism of a bolt anchored in a rock mass with a weak interlayer Open
By applying experimental method, the bolt stress and supporting mechanism is studied during the deformation process of a rock mass containing a weak interlayer. The force measuring bolt is installed manually and instrumented five pairs of …
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Effect of Pile-Soil Relative Stiffness on Deformation Characteristics of the Laterally Loaded Pile Open
Laterally loaded piles are widely used in structural foundations under horizontal loads such as wave load, wind load, seismic load, and traffic load. Based on the complexity of pile-soil interaction, a test simulation of single pile throug…