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http://dx.doi.org/10.12989/sem.2011.38.2.157

Time-dependent analysis of cable trusses -Part I. Closed-form computational model  

Kmet, S. (Faculty of Civil Engineering, Technical University of Kosice)
Tomko, M. (Faculty of Civil Engineering, Technical University of Kosice)
Publication Information
Structural Engineering and Mechanics / v.38, no.2, 2011 , pp. 157-169 More about this Journal
Abstract
In this paper the time-dependent closed-form static solution of the suspended pre-stressed biconcave and biconvex cable trusses with unmovable, movable and elastic or viscoelastic yielding supports subjected to various types of vertical load is presented. Irvine's forms of the deflections and the cable equations are modified because the effects of the rheological behaviour needed to be incorporated in them. The concrete cable equations in the form of the explicit relations are derived and presented. From a solution of a vertical equilibrium equation for a loaded cable truss with rheological properties, the additional vertical deflection as a time-function is determined. The time-dependent closed-form model serves to determine the time-dependent response, i.e., horizontal components of cable forces and deflection of the cable truss due to applied loading at the investigated time considering effects of elastic deformations, creep strains, temperature changes and elastic supports. Results obtained by the present closed-form solution are compared with those obtained by FEM. The derived time-dependent closed-form computational model is used for a time-dependent simulation-based reliability assessment of cable trusses as is described in the second part of this paper.
Keywords
cable truss; time-dependent closed-form computational model; creep of cable; elastic and viscoelastic yielding support; time-dependent cable equations;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 1  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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