Studies on active control in Steel lattice tower structures

Abstract

newlineThe protection of civil engineering structures and human occupants newlineis without doubt a worldwide priority providing scope for greater research newlineand innovation Such protection may range from reliable operation and newlinecomfort on the one hand to survivability on the other The events that cause newlinethe need for such protective measures are earthquakes winds waves traffic newlineand lightning etc The control methods will be able to make a genuine newlinecontribution to this problem area which is of great economic and social newlineimportance newlineThis research emphasized on evolving effective control newlinemechanisms and studies its effectiveness on simple trusses and towers newlinesubjected to lateral loads Truss and tower systems are widely used in newlinevariety of applications ranging from industrial structures to space stations newlineSuch systems are normally designed for specified loads and by using newlinerespective codes But in certain cases they may be subjected to loads over the newlinedesign values due to earthquakes of higher intensity and duration than that newlinespecified in codes or cyclones or even man made disasters like terrorist newlineattacks Then the need arises to protect these systems if they serve life line newlineactivities through some inherent means to provide a smart control which newlinecomes into effect only when the specified loads are exceeded by certain newlinemargins newline