Discussion on Computation of Prestressed Concrete Beam’s Bearing Capacity

Yingge Wang


Based on the producing mechanism of prestressed equivalent load, the prestressed effect of the frame structure is analyzed. This paper focuses on the functional characteristics of presstressed steel bars and classifies the contribution of prestressed steel bars at two aspects. Accordingly, the ultimate normal section load-bending capacity of prstressed beam is derived; the restriction effect which will counteract prestressed frame beam caused by secondary beam is presented, and the deficiency of prevail plane rigid frame method is pointed out.

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DOI: https://doi.org/10.5539/mas.v2n4p109

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