Disciplines / Research questions

Civil engineering

9 research topics · 19 questions

Whether the carbon reduction over the entire lifecycle of ultra-high-performance concrete offsets the high material carbon emissions2 questions
  1. Service-life-integrated whole-life LCA of concrete structures: a unified uncertainty-quantified framework, full life-cycle CO2 uptake, and the generality of green-concrete ranking inversions across deterioration mechanisms

  2. Robust whole-life environmental quantification of strength increase in concrete bridges: durability-driven service life, maintenance-scenario uncertainty, and end-of-life crediting

Prediction differences of reinforced concrete size effects in different fracture models2 questions
  1. Fictitious crack length and effective process-zone size versus aggregate microstructure in size and boundary effect models for concrete fracture

  2. Fracture-mechanics basis for minimum mesh (shrinkage-and-temperature) reinforcement in concrete: closed-form minimum ratio, experimental validation of size-effect suppression, and extension to more complex configurations

Mechanism of the decrease in ductility of high-strength concrete with increasing strength1 questions
  1. Generalization and fracture-mechanics grounding of the energy-based whole-process brittleness index for high-strength concrete under confinement

Parameter unidentifiability in strength inversion of existing building materials1 questions
  1. A priori structural and practical identifiability analysis of multiaxial plasticity model parameters in nonlinear finite element model updating

Inconsistency of shear failure bearing capacity formulas across codes4 questions
  1. Rational evaluation and mechanism-informed calibration of code shear design provisions for reinforced recycled aggregate concrete beams with stirrups

  2. Recalibration of the IS 456:2000 concrete shear contribution provisions for reinforced concrete beams

  3. Shear strength design formulation for high-strength concrete beams: correcting the partition between concrete and stirrup contributions and the stirrup-yielding failure assumption

  4. A size-effect-inclusive shear strength model and a bond-versus-web-shear failure criterion for full-scale precast prestressed double tees

Temperature effects and confusion with damage signals in structural health monitoring2 questions
  1. Field validation and data-length/sensing requirements of damage detection from temperature-separated quasi-static structural monitoring responses (adaptive bandwidth filter approach)

  2. Deployment readiness of the temperature-based three-dimensional baseline for long-span-bridge structural health monitoring: timing, thermal realism, and generalizability

Amplification mechanism of near-fault pulse seismic motion on high-rise structure response2 questions
  1. Velocity-pulse effects on long-period inelastic response spectra: robustness across record suites, sensitivity to the record-synthesis method, and design-spectrum implications

  2. Predictive design relationships for near-fault pulse amplification of seismic demands in inter-storey-isolated buildings: regression of amplification and displacement-correction factors on bearing period, damping, and substructure flexibility, and the role of pulse arrival timing

Long-tail effect of traffic loads in bridge fatigue life prediction1 questions
  1. Reliability-based calibration of the Eurocode fatigue verification format for steel road bridges under multi-vehicle interaction and probabilistic dynamics

When soil-structure interaction reduces rather than increases earthquake risk4 questions
  1. General criteria for the sign of soil–structure interaction effects on the seismic loss risk of buildings

  2. Validating the governing role of the pulse-to-interacting-system period ratio: seismic drift demands of soil–MDOF structure systems under recorded near-fault ground motions and realistic nonlinear soil–foundation models

  3. Quantitative criteria for attenuation versus magnification in structure–soil–structure interaction, and reduced-order models for city-scale seismic risk

  4. Generality, damping mechanisms, and observational validation of inelastic dynamic soil–structure interaction effects on seismic fragility of buildings

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