Designing long-span steel girders by applying displacement control concepts

N. Antoniou; Th Nikolaidis; C. C. Baniotopoulos

doi:10.1016/j.engstruct.2013.10.019

Designing long-span steel girders by applying displacement control concepts

N. Antoniou^*, Th Nikolaidis, C. C. Baniotopoulos

^*Corresponding author for this work

Civil Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In the present paper a new type of girder, suitable for covering long spans, is introduced. The load resisting mechanism of the system is based on the appropriate shape of the girder which is determined through a form-finding procedure. This optimal geometry is chosen in such a way so that no bending moments appear under external loading. Additional prestressed cables, integrated into the girder, are utilized as a means to limit vertical displacements, thus acting as a passive displacement control mechanism. At the same time, the externally simple supported structural scheme of the girder guarantees that no horizontal reactions are transferred to the columns. An application of this system as the main girder of an open roof structure is used to explain the proposed design method of the girders and to demonstrate the effectiveness of the system in covering long spans.

Original language	English
Pages (from-to)	21-27
Number of pages	7
Journal	Engineering Structures
Volume	59
Early online date	15 Nov 2013
DOIs	https://doi.org/10.1016/j.engstruct.2013.10.019
Publication status	Published - Feb 2014

Keywords

Displacement control
External prestressing
Form finding
Long span structures
Steel structures

ASJC Scopus subject areas

Civil and Structural Engineering

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https://doi.org/10.1016/j.engstruct.2013.10.019Licence: None: All rights reserved

Cite this

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title = "Designing long-span steel girders by applying displacement control concepts",

abstract = "In the present paper a new type of girder, suitable for covering long spans, is introduced. The load resisting mechanism of the system is based on the appropriate shape of the girder which is determined through a form-finding procedure. This optimal geometry is chosen in such a way so that no bending moments appear under external loading. Additional prestressed cables, integrated into the girder, are utilized as a means to limit vertical displacements, thus acting as a passive displacement control mechanism. At the same time, the externally simple supported structural scheme of the girder guarantees that no horizontal reactions are transferred to the columns. An application of this system as the main girder of an open roof structure is used to explain the proposed design method of the girders and to demonstrate the effectiveness of the system in covering long spans.",

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AU - Antoniou, N.

AU - Nikolaidis, Th

AU - Baniotopoulos, C. C.

PY - 2014/2

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N2 - In the present paper a new type of girder, suitable for covering long spans, is introduced. The load resisting mechanism of the system is based on the appropriate shape of the girder which is determined through a form-finding procedure. This optimal geometry is chosen in such a way so that no bending moments appear under external loading. Additional prestressed cables, integrated into the girder, are utilized as a means to limit vertical displacements, thus acting as a passive displacement control mechanism. At the same time, the externally simple supported structural scheme of the girder guarantees that no horizontal reactions are transferred to the columns. An application of this system as the main girder of an open roof structure is used to explain the proposed design method of the girders and to demonstrate the effectiveness of the system in covering long spans.

AB - In the present paper a new type of girder, suitable for covering long spans, is introduced. The load resisting mechanism of the system is based on the appropriate shape of the girder which is determined through a form-finding procedure. This optimal geometry is chosen in such a way so that no bending moments appear under external loading. Additional prestressed cables, integrated into the girder, are utilized as a means to limit vertical displacements, thus acting as a passive displacement control mechanism. At the same time, the externally simple supported structural scheme of the girder guarantees that no horizontal reactions are transferred to the columns. An application of this system as the main girder of an open roof structure is used to explain the proposed design method of the girders and to demonstrate the effectiveness of the system in covering long spans.

KW - Displacement control

KW - External prestressing

KW - Form finding

KW - Long span structures

KW - Steel structures

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JO - Engineering Structures

JF - Engineering Structures

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Designing long-span steel girders by applying displacement control concepts

Abstract

Keywords

ASJC Scopus subject areas

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