Following the process of construction, considering the worst loads, according to the assumption of plane section, the steelgirder alone and the composite girder are computed respectively.
The fabrication and calculation of the prestressed steelgirder is presented in this paper, and its application and economical advantage is illustrated by an example.
本文介绍了这类预应力钢梁制造方法和计算方法，并通过工程实例说明其应用方法和经济效果。
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A 15 storey reinforced concrete shear core building and a steelgirder arch bridge have been chosen as case verification.