کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
267929 504420 2010 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Studies for controlling human-induced vibration of the Pedro e Inês footbridge, Portugal. Part 1: Assessment of dynamic behaviour
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Studies for controlling human-induced vibration of the Pedro e Inês footbridge, Portugal. Part 1: Assessment of dynamic behaviour
چکیده انگلیسی

The construction in Portugal of a relatively long and slender footbridge prone to vertical and lateral vibrations induced by the action of pedestrians motivated the full assessment of the corresponding dynamic behaviour with the purpose of installing a control system. The current paper describes the studies undertaken at a design stage and the results of a thorough experimental assessment of the constructed bridge properties. This experimental test allowed in particular the identification of modal parameters and the observation of the lateral “lock-in” effect under the crossing of the footbridge by pedestrian streams prior to installation of control devices. The number of pedestrians to trigger lock-in was found to verify the formula developed within the Millennium bridge studies. Furthermore, the full characterisation of the bridge behaviour was of utmost importance in the design of a control system based on tuned mass dampers that is discussed in a companion paper.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 32, Issue 4, April 2010, Pages 1069–1081
نویسندگان
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