6.5　Member Prefabrication

6.5.1　After being formed，all arc members shall be inspected using a sample plate，with a gap of no greater than 3mm.The plate shall be inspected on a platform，with warping deformation no greater than 0.1% of the member length，and no greater than 4mm.

6.5.2　Members formed by fire bending shall not be excessively burning or deterioration，and the thickness loss shall not exceed 1mm.

6.5.3　The arrangement of draining holes shall be taken into account when members are prefabricated.

6.5.4　All bearing beams shall be inspected on a platform when the prefabrication is completed.The warping deformation shall not exceed 0.1% of the beam length，and shall be no greater than 8mm.

6.5.5　Leak inspection holes should be provided on both ends of the beam during the prefabrication of bearing beams in the absorber so that the inspector outside the absorber is capable of monitoring any leaks due to the corrosion and perforation of the beams.