This paper’s main aim was to explain the process of characterising structural over-strength factor (R), seismic behaviour (Q), and effective elastic stiffness, Keff, cantilever-reinforced concrete (RC) urban bridge columns with solid circular cross-sections for use in design under Serviceability Limit State (SLS). Similarly, mathematical models have been proposed determine average values stiffn...

With the increase of bridge-required demolition/dismantling for reconstruction or modification, early warning construction emergencies is greatly needed monitoring structural safety bridges under construction. In this paper, based on multi-source data nearby and demolition a large-span RC arch bridge in China, Analytic Hierarchy Process (AHP) method adopted to analyze set threshold According an...

In this thesis, an analytical tool for predicting fatigue performances of RC bridge slabs isdeveloped based on the concept of fracture mechanics. The degradation of bridging stress in thenormal direction of concrete cracks is considered as a primary mechanism for the propagation ofboth flexural cracks and shear cracks that induce the failure of RC slabs. The analysis of RC slabs...

In recent years, modular multilevel converters (MMCs) have been increasingly used in the field of electric vehicle charging and discharging due to their unique performance advantages. However, cascade structure MMCs raises problem circulating current. Due chemical processes, aging effects, etc., capacitance parameters upper lower bridge arms will be asymmetric, which introduce odd harmonics int...

During earthquake excitations, reinforced concrete bridge columns can be subjected to a combination of axial load, shear force, flexural moments, and torsional moments. The torsional moment can be much more significant in columns of bridges that are skewed, curved, have unequal spans, or unequal column heights. Combined loading including torsion can result in complex flexural and shear failure ...