Results 91 to 100 of about 912 (203)

Partial hinge detailing to improve catenary action of reinforced concrete frames

open access: yes, 2012
Progressive collapse resistance of buildings can be evaluated by introducing a middle column removal scenario to mobilize alternate load paths (ALP). Catenary action, one of ALPs, uses tensile force throughout beams to balance external loads applied onto
Tan, Kang Hai, Yu, Jun
core  

Analysis and suppression of operational overvoltage and inrush current for high‐speed trains by automatic phase‐switching technique

open access: yesHigh Voltage
When a high‐speed train approaches the insulated phase‐splitting section embedded between neighbouring power supply arms, the vacuum circuit breaker (VCB) installed on trains must be disconnected to maintain the traction power supply system as a no‐load ...
Ye Cao   +13 more
doaj   +1 more source

Vortex-Induced Fatigue of a Deepwater Steel Catenary Riser Under the Combined Action of Ocean Current and Platform Heave

open access: yesJournal of Marine Science and Engineering
Vortex-induced vibration (VIV) is the main cause of fatigue failure in steel catenary risers (SCRs). This study developed a fluid–structure interaction (FSI) model, combining Reynolds-Averaged Navier–Stokes (RANS)-based computational fluid dynamics (CFD)
Hui Liu   +3 more
doaj   +1 more source

Pantograph aerodynamics effects on the pantograph-catenary interaction

open access: yes, 2006
Some aspects about the influence on the current collection of the aerodynamic action on a pantograph, due to the incoming flow generated by train speed are investigated considering pantograph-catenary dynamic interaction.
BOCCIOLONE, MARCO FRANCESCO   +4 more
core   +1 more source

EMUs Pantograph Aerodynamics Experimental Research in Dropping Status under Strong Wind Condition

open access: yes机车电传动, 2016
When EMUs run at a high speed, the pantograph would be affected by airflow and blown up in dropping status, which would result in catenary short-circuit fault. In order to evaluate the pantograph aerodynamics characteristics in dropping status and ensure
JIAO Wengen
doaj  

A simplified model of catenary action in reinforced concrete frames under axially restrained conditions

open access: yes, 2017
From previous experimental studies on missing column scenarios, catenary action could provide beneficial effects on structures during load redistribution after a target column is suddenly removed under an alternative load path procedure to assess ...
Tan, Kang Hai   +3 more
core   +1 more source

Numerical Investigation of Progressive Collapse Resistance in Fully Bonded Prestressed Precast Concrete Spatial Frame Systems with and Without Precast Slabs

open access: yesBuildings
Preventing progressive collapse induced by accidental events poses a critical challenge in the design and construction of resilient structures. While substantial progress has been made in planar structures, the progressive collapse mechanisms of precast ...
Manrong Song   +5 more
doaj   +1 more source

Influence of the aerodynamic forces on the pantograph-catenary system for high speed trains

open access: yes, 2007
Most of the high-speed trains in operation today have the electrical power supply delivered through the pantograph-catenary system. The understanding of the dynamics of this system is fundamental since it contributes to decrease the number of incidents ...
COLLINA, ANDREA   +5 more
core   +1 more source

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