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Dynamic response of single‐span beam bridges to a series of moving loads
Author(s) -
Klasztorny Marian,
Langer Jan
Publication year - 1990
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290190803
Subject(s) - moving load , vibration , beam (structure) , bridge (graph theory) , span (engineering) , structural engineering , series (stratigraphy) , viscoelasticity , influence line , inertial frame of reference , stability (learning theory) , fictitious force , structural load , matrix (chemical analysis) , engineering , control theory (sociology) , mechanics , physics , computer science , geology , classical mechanics , acoustics , finite element method , materials science , medicine , paleontology , control (management) , machine learning , artificial intelligence , thermodynamics , composite material
The paper makes a contribution to the problem of a stream of loads crossing a single‐span beam bridge. There are considered the basic load models, in the form of a stream of fixed amplitude forces, unsprung masses and viscoelastic oscillators. The matrix equations of motion of the system are formulated and discussed. The problem of dynamic stability and steady‐state response of a bridge carrying a periodic stream of inertial loads is formulated and solved. The paper also includes a vibration study of a beam bridge subjected to a uniform stream of moving loads, of a limited or unlimited number of load cycles.