128 Category 3: Industrial Buildings and Plants 3 Recalculation and Strengthening of a Pipe Bridge - Siegburg, Germany AP SE Contact Oliver Mentges Address Aulgasse 176 53721 Siegburg, Germany Website www.ib-mentges.de 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
RkJQdWJsaXNoZXIy MTgyMDE=