Source–site–structure simulation
Connecting fault rupture, wave propagation and local sites to study how earthquakes load engineering structures.
Physical sources · Spatial variability · High-performance computing
Chao Luo ｜ Shijiazhuang Tiedao University
Ground motion.
Structural response.
Earthquake response of bridges, fault-crossing tunnels and underground structures.
Connecting seismic sources, local sites and structural behaviour through simulation.
EARTHQUAKE ENGINEERING · COMPUTATIONAL MECHANICS
RESEARCH
From earthquake sources to structural response
Bridges and fault-crossing tunnels
Understanding structural deformation under complex terrain effects and fault displacement, and the influence of seismic input methods.
Mountainous bridges · Subsea tunnels · Underground structures
Seismic mitigation and resilience
Combining dynamic analysis and performance assessment to investigate isolation systems, materials and infrastructure.
Isolation and damping · Fragility · Low-carbon design
SELECTED RESEARCH / 01TUST · 179 (2027) · 108146
How does the tunnel–fault angle shape lining deformation?
Using the Second Jiaozhou Bay Subsea Tunnel as a case study, the paper compares six alignments. In these cases, the 42° alignment has the lowest shear strain but relatively high normal strain; the 57° alignment has the highest equivalent strain.
6
Intersection angles: 12° / 27° / 42° / 57° / 72° / 87°
Comparison method
The source and regional-site models remain fixed while the tunnel alignment changes. The comparison considers spatially varying ground-motion inputs and lining deformation.
PUBLICATIONS
Recent publications
Influence of tunnel-fault intersection angle on the seismic deformation mode of a large-span cross-fault subsea tunnel
Yang Gao, Ke Zhang, Hao Wang, Zerui Ji, Chao Luo*. Tunnelling and Underground Space Technology, 179, 108146.
Tunnel–fault angle and spatial sampling affect the deformation mode of a large-span fault-crossing subsea tunnel. * Corresponding author.
Publication detailsA Method for Consistent Decomposition of Regional Near-Fault Ground Motions into Dynamic and Fault-Slip-Induced Components
Fei Xu, Ke Zhang, Xiangbo Bu, Hemin Zheng, Hao Wang, Chao Luo*. Bulletin of the Seismological Society of America, published online, 1–15.
A unified cutoff frequency consistently separates regional near-fault ground motions into dynamic and fault-slip-induced components. * Corresponding author.
Publication detailsEvaluation of ground-motion intensity measures for seismic response of fault-crossing tunnels
Luo C, Du H, Du Y, Bu X, Xu F, Zheng H, Wang H, Ji Z. Tunnelling and Underground Space Technology, 176, 107885.
DOIEvaluation criteria for seismic performance and carbon emission assessment methodology of wire-mesh concrete sandwich walls
Wang H, Lu W, Tian W, Qiao W, Luo C. Earthquakes and Structures, 30(5), 591-609.
PublicationsRESEARCH NOTES
Engineering questions behind the papers
How does a tunnel’s angle to a fault change its deformation?
Six tunnel alignments reveal how normal and shear strains combine.
Read full note ↗
Shaking and permanent offset: how can we separate the two?
A consistent method separates dynamic motion from fault-slip-induced movement across a region.
Read full note ↗
Can a sandwich wall balance seismic performance and carbon emissions?
Linking structural performance and material use in wire-mesh concrete sandwich walls.
Read full note ↗
ABOUT
Chao Luo
Lecturer and Master’s Supervisor · School of Civil Engineering, Shijiazhuang Tiedao University
My research focuses on physics-based source–site–structure seismic response analysis, structural resilience and high-performance computing, with applications in bridges, tunnels, underground structures and civil infrastructure.
PhDTongji UniversityVisiting doctoral studentUC Davis · 2013–2015
CONTACT
Research and collaboration
For research discussions, graduate study and academic collaboration, please contact me by email.