Methods for Calculating Bending Moment and Shear Force in the Moving Mass Problem

Author:

Biondi Bruno1,Muscolino Giuseppe2,Sidoti Anna3

Affiliation:

1. University of Catania, Dipartimento di Ingegneria Civile e Ambientale, V.le A. Doria 6, I-95100, Catania, Italy

2. University of Messina, Dipartimento di Ingegnezia Civile, Salita Sperone 31, I-98166, Messina, Italy

3. University of Palermo, Dipartimento di Ingegneria Strutturale e Geotecnica, Viale delle Scienze, I-90123, Palermo, Italy

Abstract

Two methods able to capture with different levels of accuracy the discontinuities in the bending moment and shear force laws in the dynamic analysis of continuous structures subject to a moving system modeled as a series of unsprung masses are presented. The two methods are based on the dynamic-correction method, which improves the conventional series expansion by means of a pseudostatic term, and on an eigenfunction series expansion of the continuous system response, which takes into account the effect of the moving masses on the structure, respectively.

Publisher

ASME International

Subject

General Engineering

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