Effect of External Prestressing on the Stability of a Flat Arch

Marek Velesik; Jiří Strasky; Radim Necas; Jan Kolacek; Michal Pozar

doi:10.4028/p-s8IkEO

Paper Titles

Static Analysis of a Fully Composite Modular Footbridge
p.1

Effect of External Prestressing on the Stability of a Flat Arch
p.11

Important Aspects Influencing the Dynamic Parameters of Slender Pedestrian Bridges Formed by Stress Ribbon Structure
p.21

Possibilities of Indirect Techniques for Prestressing Analysis of Existing Structures and Bridges
p.33

Experimental Analysis of Joints in Slender Footbridges from Precast Segments
p.41

Condition Evaluation of Inspected Bridges Built of Prestressed Standardized Precast Girders KA-73 after 40 Years of Use
p.49

Conceptual Design and Sustainable Development
p.55

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 147Effect of External Prestressing on the Stability...

Effect of External Prestressing on the Stability of a Flat Arch

Abstract:

For bridges with a slender bridge deck, ensuring sufficient stability under external loads is one of the technical problems that must be addressed. This paper studies the stability of a flat arch under asymmetric loads. Flat arch structures can form a directly walkable bridge deck. These structures can be realized without external prestressing only up to certain spans due to the necessity of capturing significant horizontal forces. The paper includes a static study that analyses the possible arrangements of the prestressing cables. The study evaluates the stabilizing effect of external prestressing and the possibility of creating a self-anchored system. Based on the results of the static study, a suitable variant was chosen for the design of a physical experiment. The experimental measurements compare the increase of stability for an arch discretely connected to a prestressing cable and an arch structure with a tie without mutual connection.

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Periodical:

Advances in Science and Technology (Volume 147)

Pages:

11-19

DOI:

https://doi.org/10.4028/p-s8IkEO

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Online since:

April 2024

Authors:

Marek Velesik*, Jiří Strasky, Radim Necas, Jan Kolacek, Michal Pozar

Keywords:

External Prestressing, Flat Arch, Stability, Static Physical Model

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