Box girders
- Commodity name： Box girders
- 产品描述
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The cross-sectional shape of a box girder resembles that of a typical box, generally comprising a top flange, web, bottom flange, and partitions. Materials include steel and prestressed reinforced concrete. The fundamental concept of box girder structures lies in transforming the entire superstructure into an integral hollow beam. When primary loads act at any point along the box girder, all components of the hollow beam—web, top flange, and bottom flange—participate in load-bearing as a unified whole.
The box section exhibits excellent bending and torsional resistance. The top and bottom plates are the primary contributors to the structure's bending capacity, while the web primarily bears the main tensile stresses induced by bending shear and torsional shear stresses. Compared to solid beams of the same cross-section, box girders offer lighter self-weight, reduced material consumption, and superior bending resistance. They are suitable for projects in construction, machinery manufacturing, building construction, and steel structure engineering.
Structural characteristics
Simple construction with clean, aesthetically pleasing lines
Low building height, easy maintenance, and clear stress distribution:
Constant cross-section design significantly reduces formwork requirements, accelerates project progress, and offers simplicity and cost-effectiveness.
Key words:
Box girders
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