The difference between two model prestressed anchorage BJM and yjm

BJM flat anchorage:
BJM flat anchorage is in vertical space in the structural system of prestressed tensioning device is small (such as bridge panel tensioning, negative bending moment tensioning) application of a prestressed anchorage type.
Specifications:
Such as: BJM 15-5, other BJM code for anchorage specification, B for the sector, J for the clamp plate, M for anchorage;15 is applicable to steel strand 15.20 specification, 5 for each corresponding 5 root anchorage steel strand.
YJM type anchorage:
YJM type anchorage is in prestressed tensioning equipment structure system of prestressed steel strand tensioned anchorage of a common type of anchorage.
Specifications:
Such as: YJM15-12, YJM for anchorage code.Y for prestressed, J for the clamp plate, M for anchorage;13 to 15 for the applicable to 15.20 strands (applicable to 12.70 strands), 12 for each corresponding 12 root anchorage steel strand.