Lateral dynamic bridge deck–pier interaction for ultra-high-speed Hyperloop train loading

Abstract

The next generation of ultra-high-speed (UHS) trains, known as Hyperloop and TransPod, are aerospace type vehicles designed to carry passengers. The UHS employs a vehicle capsule within a protected vacuum tube deck, supported 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 of bridge deck (twin tube) and piers under such an unbalanced moment is an extremely important factor for analysis of viaducts under dynamic UHS train loading. Hence, this paper analytically addresses the dynamic bridge deck-pier interaction under UHS train loading for lateral vibration.

Numerical Study of Longitudinal Inter-Distance and Operational Characteristics for High-Speed Capsular Train Systems

“…Capsular vehicles have a lot of advantages over traditional on-ground transportations like high speed, capacity, fuel efficiency, operational cost, environmentally friendly, etc., [17][18][19]. Among various subject areas for realization including communication [20,21], software systems and their designs [22], performance modeling and simulations [23], energy management [24]and eco-friendly effect [25], train control management and operation [26][27][28], this paper focuses on the inter-distance control aspect in operation since its inter-distance is directly related to the number of passengers, freight, and the overall efficacy of hyperloop system operation. M. Overton et al focused on and described the capsule hazards and mitigations along with specialized evacuation processes appropriate for Hyperloop [29].…”

“…[17][18][19]. Among various subject areas for realization including communication [20,21], software systems and their designs [22], performance modeling and simulations [23], energy management [24] and eco-friendly effect [25], train control management and operation [26][27][28], this paper focuses on the inter-distance control aspect in operation since its inter-distance is directly related to the number of passengers, freight, and the overall efficacy of hyperloop system operation.…”

Key Points of the Management System for the Safety of Passengers Travelling with Low-Pressure Trains

“…to guarantee safe capsule deceleration) in case of a failure of the speed control system were also investigated. The way to ensure the safe vehicle travel at the station is to correctly guide the capsules to the platforms by means of crossovers and redirect the capsules not stopping at the station through a tunnel bypassing the station, thus avoiding unnecessary movement of the capsules through the atmospheric pressure zone (Dudnikov, 2018;Janzen, 2017;Ahmadi et al, 2020;Alexander and Kashani, 2018). At the operational level, the element of security system is to ensure the smooth flow of passengers, especially the processes of security control, entry and exit of the capsules and baggage handling (Li et al, 2019).…”

“…The main directions of hitherto studies on hyperloop technology have concentrated on technological aspects of propulsion, e.g. the electromagnetic levitation (Soni et al, 2019;Pradhan and Katyayan, 2018;Abdelrahman et al, 2018;Tudor and Paolone, 2019;Lafoz et al, 2020), the dynamics of the HL capsules and low-pressure tubes (Rajendran and Harper, 2020;Niu et al, 2020a;Nowacki et al, 2019;Belova and Vulf, 2016) the HL infrastructure and their resistance to natural catastrophes (Ahmadi et al, 2020;Alexander and Kashani, 2018;Taylor et al, 2016;Heaton, 2017) environmental aspects of the HL technology including energy consumption and utilization of renewable energy sources (Janić, 2020;Nowacki et al, 2019;Sayeed et al, 2018Sayeed et al, -2018Lafoz et al, 2020;Roswall et al, 2018;Rajendran and Harper, 2020) as well as costs and benefits associated with operational, economic, social, and environmental performance of the HL (Janić, 2020;Almujibah et al, 2020;van Goeverden et al, 2018;Rajendran and Harper, 2020). As the deployment of the HL technology gets more and more real, the design of hyperloop station and passenger safety management issues need systematical exploration, however existing studies on these subjects are scarce (Dudnikov, 2019;Taylor et al, 2016;Covell, 2017;Stryhunivska et al, 2020;van Goeverden et al, 2018;Rajendran and Harper, 2020).…”