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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Bridge Falsework in Staged Construction of a Prestressed Concrete Beam Bridge
Author(s)
Janusz Hołowaty1 and Dariusz Jurkowski2
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DOI:10.17265/1934-7359/2015.12.005
Affiliation(s)
1. Faculty of Civil Engineering and Architecture, West Pomeranian University of Technology, Szczecin 70-311, Poland
2. PPDM Szczecin, Szczecin 71-063, Poland
ABSTRACT
The formwork and falsework in the construction of twin ribbed slab decks on
a multi-span ecological bridge for a dual carriageway are presented. The bridge is situated in a valley
plain which is crossed by small rivers and was designed principally with the
environment in mind. The bridge length is over 356 m, and the width of the decks is 11.5 m. For the bridge works, a simple
conventional falsework system was chosen with steel frames for the supports and
steel rolled beams for the decks. The formwork was constructed in solid timber
and plywood as multiple-use panels. The falsework was designed in order to
build the two 10-span bridge decks in stages. The decks are continuous
cast-in-situ prestressed concrete twin rib with spans of 30 m, 34 m and 45 m. An
individual falsework system was designed, which was easy to move transversally following completion of each stage
for one deck. After finishing each stage, for the second deck, the falsework was
dismantled and used again in the next construction fronts. An individual
arrangement for the falsework along with timber pilings was used to cross the
biggest river. The formwork timber panels were used several times in the
multistage bridge construction. The adopted falsework system is very simple, but it allowed the
speedy construction of the two decks where there were severe time constraints.
KEYWORDS
Prestress concrete bridge, continuous bridge, twin rib deck, span-by-span construction, formwork, falsework.
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