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SVOBODA, A. KLUSÁČEK, L.
Original Title
Possibility of Increasing the Load Bearing Capacity of Parapet Bridge Structures
Type
conference paper
Language
English
Original Abstract
Post-tensioning is a suitable, reliable and durable method for strengthening existing reinforced concrete bridge structures. The high efficiency of post-tensioning can be seen on many implemented applications for bridge reconstructions worldwide. There are still several thousands of beam and slab bridges the load capacity of which no longer meets the demanding transport conditions. The oldest reinforced concrete beam bridges, from 1905-1915, are designed according to the Austrian Ministry of Railways Bridge Standard of 1904 when the largest load to be considered was the 18-tonne road steamroller. These bridges are not dimensioned for the currently valid traffic load values. The paper deals with the strengthening of the parapet beam bridges from the period of 1905-1930. These bridges have two main beams pulled over the bridge deck which is supported by cross beams. The cross beams connect the two main beams, forming a half-frame in the transverse direction which provides spatial rigidity of the structure. The spans of these bridges are usually in the range of 15 to 25 m.
Keywords
parapet bridge; strengthening; post-tensioning; substituted cable ducts method
Authors
SVOBODA, A.; KLUSÁČEK, L.
Released
28. 2. 2018
Publisher
Trans Tech Publications
Location
Switzerland
ISBN
978-3-0357-1284-1
Book
24th Concrete Days 2017, 24th International Conference Concrete Days 2017
1662-9779
Periodical
Solid State Phenomena
Number
272
State
Swiss Confederation
Pages from
319
Pages to
324
Pages count
6
BibTex
@inproceedings{BUT144282, author="Adam {Svoboda} and Ladislav {Klusáček}", title="Possibility of Increasing the Load Bearing Capacity of Parapet Bridge Structures", booktitle="24th Concrete Days 2017, 24th International Conference Concrete Days 2017", year="2018", journal="Solid State Phenomena", number="272", pages="319--324", publisher="Trans Tech Publications", address="Switzerland", doi="10.4028/www.scientific.net/SSP.272.319", isbn="978-3-0357-1284-1", issn="1662-9779" }