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The new bridge “Lahnsteg Nauheim”, Wetzlar: slender, elegant, parametrically designed
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AbstractThis paper outlines the planning of a bridge in central Germany. Scheduled for construction in mid‐2024, this new bridge is a replacement for a century‐old pedestrian bridge crossing the Lahn river.The proposed bridge will be an airtight‐welded arch bridge, employing steel cross‐sections in both the arch and tension member. Designed as a single‐span, the arches extend 48.0m over the Lahn. The two arches have a flat rise of 4.65m, supporting the roadway through 9 inclined flat steel hangers.This paper delves into the structural engineering aspects, exploring challenges inherent in the design process. An examination of the parametric design process, facilitated through 3‐D modeling in Rhino® and Grasshopper®, will be presented, along with insights into their interface with the finite element modeling software, RFEM®. This process enables an engineering approach to form‐finding and structure optimisation through iterative design checks for various elements and stages of the structural analysis.
Title: The new bridge “Lahnsteg Nauheim”, Wetzlar: slender, elegant, parametrically designed
Description:
AbstractThis paper outlines the planning of a bridge in central Germany.
Scheduled for construction in mid‐2024, this new bridge is a replacement for a century‐old pedestrian bridge crossing the Lahn river.
The proposed bridge will be an airtight‐welded arch bridge, employing steel cross‐sections in both the arch and tension member.
Designed as a single‐span, the arches extend 48.
0m over the Lahn.
The two arches have a flat rise of 4.
65m, supporting the roadway through 9 inclined flat steel hangers.
This paper delves into the structural engineering aspects, exploring challenges inherent in the design process.
An examination of the parametric design process, facilitated through 3‐D modeling in Rhino® and Grasshopper®, will be presented, along with insights into their interface with the finite element modeling software, RFEM®.
This process enables an engineering approach to form‐finding and structure optimisation through iterative design checks for various elements and stages of the structural analysis.
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