Yaohan Li

Hong Kong Metropolitan University | hkmu

Purpose: This paper conducts a review of the different research carried out recently on the behavior of non-structural elements (NSEs) and the life cycle assessment (LCA) during an earthquake. It focuses on the study conducted recently and identifies the gaps and way forward for future work. Methods: A systematic literature review was carried out a...

This paper presents recent advances in research on high-performance steel tubular members, including beams and columns. The term high-performance steel has been used for steels that have unparalleled characteristics such as high strength, cold formability, corrosion resistance, and ductility. Stainless steel (SS) and high-strength steel (HSS) are c...

Civil infrastructure is subjected to multiple deterioration processes (e.g., gradual deterioration and shock deterioration) caused by environmental exposure and extreme events during its lifetime. To maintain performance and functionality, maintenance actions should be performed and the life-cycle cost may be affected. There is a need to explore th...

With the booming development of bridge construction, bridge operation and maintenance have always been major issues to ensure the safety of the community. Affected by the long-term service of bridges and natural factors, the safety and durability of cables can be threatened. Cables are critical stress-bearing elements of large bridges such as cable...

Bridges, especially cable-stayed bridges, play an important role in modern transportation systems. The safety status of bridge cables, as an important component of cable-stayed bridges, determines the health status of the entire bridge. As a non-destructive real-time detection technology, acoustic emission has the advantages of high detection effic...

Quantifying economic losses of civil infrastructures subjected to various hazards under a life-cycle context is of vital importance for risk assessment and management. In previous studies, the expected long-term loss has been widely applied as a standard decision criterion during the life-cycle analysis. However, the expectation may not be informat...

It is essential to predict the long-term deformation of partially enclosed steel reinforced concrete (PSRC) columns employed extensively in modern high-rise buildings. This study aims to evaluate the differences of drying shrinkage deformation between PSRC and plain concrete (PC) columns due to their different moisture diffusion, and propose a modi...

Coastal highway bridge is an essential component of the transportation system but threatened by natural hazards such as hurricanes. Damaged highway bridges result in not only transportation disruption, but also tremendous financial, societal, and life loss. Therefore, vulnerability and loss assessments of bridges under hurricane events are becoming...

This paper proposes a comprehensive analysis framework, combining three-dimensional (3D) numerical modelling and metamodeling, to investigate the probabilistic performance of retrofit actions on coastal bridges subjected to extreme wave forces. Specifically, a 3D Computational Fluid Dynamics (CFD) model is developed to calculate extreme wave load o...

It is of vital importance to incorporate sustainability and resilience in the performance-based decision-making of civil infrastructure under seismic hazard. However, a performance-based engineering framework utilizing component-level approach, integrating seismic loss, sustainability, and resilience in a multi-criteria decision-making (MCDM) is no...

p>Resilience and loss assessment plays an important role in hazard risk management and mitigation. As a paramount indicator, resilience has been widely utilized to account for robustness and recovery capability of civil infrastructure. However, previous studies evaluate the resilience conditioned on a single hazard scenario, which is less likely to...

Coastal civil infrastructure can be susceptible to damages caused by hurricanes throughout its service life. Vulnerability assessment is a key component in hazard risk management of civil infrastructure systems. Previously, most studies assume storm parameters are independent when computing the vulnerability of infrastructure to hurricanes. Due to...

Quantification of hazard-induced losses plays a significant role in risk assessment and management of civil infrastructure subjected to hazards in a life-cycle context. A rational approach to assess long-term loss is of vital importance. The loss assessment associated with stationary hazard models and low-order moments (i.e., expectation and varian...

Highway bridges play a significant role in maintaining safety and functionality of the society. The immediate damage of highway bridges caused by natural hazards can disrupt transportation systems, impede rescue and recovery activities. This disruption may result in tremendous financial and societal losses. Therefore, assessing vulnerability, recov...

Coastal bridges are vulnerable to typhoon hazards due to increasing exposure to climate change over the life-cycle. The consequent hazard-induced loss is affected by uncertainties arising from the typhoon hazard model in terms of increasing occurrence of typhoon frequency and intensity. In the literature, researchers highlighted hazard model of the...

Due to its unique properties within hazard mitigation, shape memory alloy (SMA) has been developed and adopted within the design and retrofit of civil infrastructures to improve the seismic performance. The performance benefit associated with the SMA bridges in a long term has not been well recognized by the decision maker, thus, the wide applicati...