Special steels have higher strength and toughness, physical properties, chemical properties, biocompatibility and process properties than ordinary steels.
Steel box girder and steel and concrete composite box girder are used for large spans, which need to minimize the weight of the bridge, and their excellent high torsional stiffness is particularly useful. The clean lines of the box girder bridge usually have no obvious external hardening. It is generally considered to have excellent appearance and durability, and it has no traps for dust and moisture. Box-shaped cross-sections are sometimes used as compression members, such as in cable support structures or arched towers.
Box Girder Formwork,Box Girder Structure,Metro Box Girder Formwork,Bridge Box Girder Formwork
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