Now showing documents 1-10 of 20
Study on extraction parameters of flutter derivatives for the development of a time-domain formulation of self-excited forces
Abstract: This paper addresses the evaluation of the dependence of bridge-deck flutter derivatives to the extraction parameters used in wind tunnel tests. The studied parameters are the model scale, model velocity and ...
Implementation of a simplified method in design of hysteretic dampers for isolated highway bridges
Abstract: Using seismic isolation systems for highway bridges modifies the structure’s principal vibration modes, effectively reducing the seismic base shear conveyed from the superstructure to the substructure. However, ...
Failure analysis of transmission line steel lattice towers subjected to extreme loading
Other titre : Building tomorrow’s society / Bâtir la société de demain
Abstract: Lattice towers are extensively used in overhead transmission lines, owing primarily to their lightness and cost-effectiveness. The modeling of such structures is usually laborious due to various complex factors ...
Evaluation of phase-to-phase clearances of transmission line conductors under turbulent wind
Abstract: "Wind loads govern the design of a large number of overhead transmission lines worldwide. The spatial and temporal variation of wind speed and the buffeting response of cables may induce swings not fully synchronized ...
Influence of damping and force hypotheses for evaluating ductility demand of structures subjected to time history wind loading
Abstract: Current wind design procedures require that structural behavior remains elastic under wind loading corresponding to a specific return period unlike seismic codes that set some specifications to account for the ...
Full-scale measurement of the response of a CPV tracker structure prototype under wind load
The response of concentrated photovoltaic (CPV) structures under wind loading has to be carefully predicted to optimize the design of these structures. Designers normally rely on wind tunnel tests and equivalent static ...
Time-domain analysis of solar concentrator structure under gust wind
Abstract: Accurate evaluation of wind load effects on solar structures is important for optimizing their design. Gust wind and its dynamic effect may be significant for this type of structure, however while time-domain ...
Effect of the design resistance of structures on the extent of transmission line cascading failures
Other titre : Building on our growth opportunities = Miser sur nos apportunités de croisssance
Abstract: Transmission line structures may suffer catastrophic losses when cascading failures occur. These events are caused by dynamic loads often related to the sudden ruin of conductors or other mechanical equipment. ...
Strengthening of the net section of steel elements under tensile loads with bonded CFRP strips
Abstract : The use of CFRP is increasingly common as a solution for the strengthening of structures, but the majority of research and applications have focused on the retrofit of concrete structures. The application of ...
Experimental study of dynamic bending stiffness of ACSR overhead conductors
Abstract : Aeolian vibrations of transmission line conductors may cause fretting fatigue failure at or near the location of clamped devices. At these locations, the bending stiffness variation of the conductor has a large ...