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Cable structures
J. Construct. Steel Res. Vol. 46, Nos. i-3, pp. 488 paper number 286, 1998 01998 Ekvier Science Ltd. All rights re.wved Printed in GreatBritain 0143-974X/98 $19.00 + 0.00 PII: So143-974x(98)08041-8
ELSEVIER
Cable Structures Zoltti
Ag6cs and J&r Brodniansky
Department of Metal and Timber Structures, Faculty of Civil Engineering, Radlinskt!ho 11, 8 13 68 Bratislava, Slovakia
STU
Paper Number 286 Full paper on enclosed CD-ROM
Extended exploitation of suspension and cable-stayed systems, with the main aim to decrease material usage, is one of the typical features in the development of the steel bearing systems in the last decades. The economy of these systems lies first all in the fact that small tension elements are made of materials with high strength and it is possible to use the whole cross-sectional area of the tension bars or cables. This paper discusses the theoretical and experimental investigation of the influence of gradual branching of inclined cable stays on the distribution of internal forces and the rigidity of cable-stayed systems. The paper gives an overview about the concept of cable-stayed and prestressed space structures without a stiffening girder together with the problem of location of bearing and wind cables. Theoretical considerations about providing space stiffness are presented. Erection procedure and some chosen structures are described. 0 1998 Elsevier Science Ltd. All rights reserved
KEYWORDS Conceptual design, cable-stayed systems, longitudinal layout of the stays, gradual branching, branch system, suspension prestressed cable system without stiffening girder, space stiffness, erection procedure, examples.
488
ELSEVIER
Cable Structures Zoltti
Ag6cs and J&r Brodniansky
Department of Metal and Timber Structures, Faculty of Civil Engineering, Radlinskt!ho 11, 8 13 68 Bratislava, Slovakia
STU
Paper Number 286 Full paper on enclosed CD-ROM
Extended exploitation of suspension and cable-stayed systems, with the main aim to decrease material usage, is one of the typical features in the development of the steel bearing systems in the last decades. The economy of these systems lies first all in the fact that small tension elements are made of materials with high strength and it is possible to use the whole cross-sectional area of the tension bars or cables. This paper discusses the theoretical and experimental investigation of the influence of gradual branching of inclined cable stays on the distribution of internal forces and the rigidity of cable-stayed systems. The paper gives an overview about the concept of cable-stayed and prestressed space structures without a stiffening girder together with the problem of location of bearing and wind cables. Theoretical considerations about providing space stiffness are presented. Erection procedure and some chosen structures are described. 0 1998 Elsevier Science Ltd. All rights reserved
KEYWORDS Conceptual design, cable-stayed systems, longitudinal layout of the stays, gradual branching, branch system, suspension prestressed cable system without stiffening girder, space stiffness, erection procedure, examples.
488