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Category 3: Industrial Buildings and Plants
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Recalculation and Strengthening of a Pipe Bridge - Siegburg, Germany
SE
AP
Contact
Oliver Mentges
Address Aulgasse 176
53721 Siegburg, Germany
Website
For 20 years the engineering company Mentges designs structures and
buildings in concrete, steel or timber for industrial, commercial, residential
and administrative purposes. The customer base today is crossing regional
borders with nationwide projects. Mr. Mentges set BIM approaches in
his thesis already in 1989 and therefore relies on the technology leader
Nemetschek Group. Structural analysis and detailing with SCIA Engineer
and Allplan is a real BIM. The consistent 3D design is not a goal in itself,
but for the 3 engineers involved it represents a way to produce an optimal
design with a minimised possibility of errors.
Owner
Siegwerk Druckfarben AG, Siegburg
Engineering Office
Ingenieurbüro Mentges
Construction Period 03/2015 - 05/2015
At Siegwerk Druckfarben AG in Siegburg they discovered that the actual
load of a 45 m long pipe bridge exceeds the load considered in the
original analysis. IB Mentges was appointed to study the stability in the
current situation and confront it with the additional expected loads. The
main objective thus was to apply additional loads with minimal effort
and without any interruption in the operation. The solution proposed
by IB Mentges, to reinforce the existing single-span truss bridge by an
additional support, met with an approval. To assess the current as well
as the planned states, the structure was calculated in SCIA Engineer as
a 3D system. It was found out that the existing loads can be taken by the
structure with a sufficient level of safety. The 3D calculation of the original
2D model showed that an additional capacity is available.
For the final, economically optimized, state the applied loads were
gradually increased. The existing bridge structures were only slightly
modified: a new intermediate support and some stiffeners were added,
primarily to avoid an increase of the existing support loads. The
modification resulted in a fivefold increase in the applied load. At this state
the geometrical limitations were reached. The stiffeners were installed
only on 7 vertical and diagonal members. The planning of the realisation
of the steel structure and foundation was done in Allplan Engineering
where the 3D model also facilitated the construction work.
Ingenieurbüro Mentges
