Metaphorically, building bridges equates to creating new opportunities, connections, and paths. The first bridges likely formed naturally with logs falling across rivers and natural depressions, though humans have also been building rudimentary structures to overcome obstacles since prehistory. Today, technological advances have made it possible to erect bridges that are both impressive and sculptural, playing a key role in transportation and connectivity. Usually needing to overcome large spans, with few points of support, bridges can be quite difficult to structure. But when is the bridge more than a connection between two points, instead resembling a building with a complex program? How can these 'bridge houses' be structured?



Currently, along with the technical and economic feasibility and reliability of the structure, great importance is attached to operational merits, traffic safety and architecture.

The bridges themselves are classified according to a number of features that contribute a number of their details to their design and construction. At the moment, the record holders for spans are bridges with metal spans, they are often called metal bridges. The design of bridges has led to an increase in the dimensions of the roadway and underbridge dimensions, the construction of a large number of oblique and curved bridges in terms of plan, to the widespread use of continuous beam and frame-continuous systems, to the creation of spans with a low construction height. There is a noticeable tendency towards an increase in spans during the construction of bridges and overpasses.

The creation of new structures and an industrial base for their manufacture, the technical equipment of construction organizations made it possible to make standard spans for typical reinforced concrete spans of road and city bridges of large spans.



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