.... To address these limitations, a novel iterative framework was developed to decouple the system. Based on the geometric characteristics of the MBEJ, a road roughness profile was generated as input for vehicle dynamic analysis. The resulting vehicle responses were then applied to the MBEJ system to determine...

...Wasyhun Afework Kechine; Bin Wang; Cuipeng Xia The dynamic amplification factor ( DAF ) is a key parameter for evaluating the dynamic performance of bridges under vehicular loading. Although it has been extensively studied, accurately determining DAF remains challenging due to the combined...

...Johan O. Jonsson In bridge dynamics the current practice is time domain analyses; consequently, there are specific requirements on load model formulation as well as computational intensity. This paper explores a spectral approach to evaluate bridge deck acceleration using an envelope spectrum...

... Bridge’ derives from the lively movement of the deck under pedestrian loading. A key aspect of the project included modelling and measurement of the dynamic response of the structure prior to and following repair works to confirm that the signature shake was retained. The project also incorporated...

...Hongmei Tan; Jiahao Wei; Yong Zeng; Yutong Zeng; Huijun Zheng In this study, a cable-stayed bridge was developed, characterised by short pylons and outwardly inclined cable planes. The dynamic characteristics of this bridge were investigated using the Lanczos eigenvalue and finite-element methods...

... using truncated incremental dynamic analysis by concatenating three earthquake scenarios. The authors adopted a Bouc–Wen class hysteresis model to simulate the reinforced concrete pier's cyclic response, matching its experimental cyclic response. The current analysis proved that ductility and resistance...

...Wuji Tang; Dejian Li; Yuwei Lian; Junyi Zhang With the progress of engineering technology, the natural frequency of structures can be easily obtained by dynamic testing. If the relationship between the fundamental frequency and the constraint stiffness is analysed, the constraint stiffness...

... at the bridge site during the typhoon event, the vibration behaviour of the bridge cables and its cause were examined. Emerald Publishing Limited: All rights reserved 2025 bridges cable-stayed bridges cables & tendons cable vibration dynamics monitoring structural analysis structural health...

.... The stiffness and strength parameters of the backfill material may also markedly influence dynamic pressures on the abutments and internal forces in the structure. Backfill materials with greater stiffness and strength parameters may cause significant reductions in the seismic flexural stresses in both...

...) or deliberate (intentional sabotage). Such an event may cause progressive failure of the structure (Starossek, 2007). To examine the effect of the cable breakage, the post-tensioning institute (PTI, 2012) recommends the use of either pseudo-dynamic analysis using equivalent static loads (e.g. Wolff...

... ICE Publishing: All rights reserved 2021 bridges dynamics seismic engineering In Wenk (2005) , bridge damage distributions depending on the respective generation of standards are shown for the 1994 Northbridge earthquake (Figure 1). It can be clearly seen that bridges designed according...

... bridges concrete structures dynamics A bridge in which the deck is monolithically connected with the pier or pier bent portal is called an integral bridge. It is also called a jointless bridge because it is devoid of thermal expansion joints or joints over bearings. This type of bridge first...

... pedestrians (overtaking, change of direction, groups etc.). 23 10 2019 24 08 2020 ICE Publishing: All rights reserved 2020 dynamics footbridges risk & probability analysis Footbridges are becoming lighter and slender structures, with designs governed...

... better understanding of the actual responses of bridge structures under impact load, vessel–bridge collisions were simulated using the non-linear finite-element method. Four commonly used dynamic constitutive models of concrete are described in this paper. Two impact tests (a rigid ball striking a target...

... specifies larger relative longitudinal displacement limits. In this work, the influences of substructure flexibility on relative displacements were investigated through dynamic analyses of 36 different numerical models representing a 20-span viaduct supported by substructures with first horizontal...

... models for design purposes and to provide a deeper understanding of some of the key definitions within HSR bridge models. bridges dynamics railway systems High-speed railway (HSR) lines are present in many countries around the world. The development of these lines stemmed from the first HSR...

... by reinforced concrete piers (i.e. multi-span viaduct). The tube environment allows multiple UHS vehicles to run in parallel simultaneously (i.e. twin tube deck) where asymmetric train loading will result in a large dynamic unbalanced moment on the piers. Therefore, exploring the lateral dynamic interaction...

... frequencies are close. Expected excitation frequency ranges depend on train types and their respective possible crossing speed. The European standard BS EN 1991-2 (BSI, 2010) differentiates between a simplified approach with static load models and dynamic amplification factors valid for speeds up to 200 km/h...

... Publishing: All rights reserved 2017 bridges dynamics safety & hazards Bridges are a major part of the infrastructure system in developed countries. It has been estimated that there exist about 600 000 bridges in the USA (Dunker, 1993), about 150 000 in the UK (Woodward et al., 1999...

... instability of long-span bridges in two dimensions and three dimensions. Computational fluid dynamics (CFD) techniques for modelling the flow past bluff bodies are also covered. Different model combination techniques are presented, utilising analytical, numerical and experimental approaches to predict...