Two lessons come to mind. The first is that fabrication of girders using CFRP strands is generally more challenging because stressing of the material, which has a greater notch sensitivity than steel, affects how that type of strand can be gripped. The second issue is that the strand is elastic until failure, so there is no yield point and therefore no plasticity. While this differs from the behavior of conventional strand, the significantly greater ultimate strength of CFRP strand makes it possible to achieve safe designs using a different approach from designs using conventional strand. A guide specification is now available.
Several recent articles on this subject have been published in both ASPIRE, PCI and ACI journals and publications.