durchlaufbrückes

A durchlaufbrücke, often translated as a continuous bridge or a multi-span bridge, is a bridge structure characterized by multiple spans supported by piers or abutments. Unlike simple bridges that consist of a single span between two supports, a durchlaufbrücke extends over a longer distance by incorporating several individual spans placed end-to-end. This design allows for the crossing of wider obstacles such as rivers, valleys, or extensive railway lines.

The structural integrity of a durchlaufbrücke relies on the continuous nature of its deck or superstructure. The deck is designed to transfer loads across multiple supports, distributing stresses effectively. This continuity can be achieved through various methods, including monolithic construction where the deck is poured as a single unit over the piers, or by connecting pre-fabricated sections. The piers act as intermediate supports, reducing the length of individual spans and allowing for more economical construction for very long crossings.

The advantages of a durchlaufbrücke include its ability to span significant distances with fewer intermediate supports compared to a series of simply supported bridges. This can lead to reduced foundation costs and a more streamlined appearance. However, the continuous nature also means that if one span experiences significant stress or damage, it can potentially affect adjacent spans. Maintenance and repair strategies for durchlaufbrücken are tailored to address the continuous load transfer system. Common types of durchlaufbrücken include beam bridges, arch bridges, and suspension bridges, all adapted to incorporate multiple spans.