后张法无粘结预应力框架梁施工技术

On construction technique of back-tension adhesion-free prestress frame beam

结合具体工程实例,介绍了后张法无粘结预应力框架梁施工技术,阐述了质量保证措施,探讨了常见事故的处理,指出该无粘结钢绞线后张法施工借助两端的锚具传递预应力非常适用于现浇框架大梁的后张曲线张拉。

By combining with factual projects,the paper introduces the construction technique of back-tension adhesion-free prestress frame beam,illustrates the quality measures,explores common treatment for accidents,and points out the construction technique of back-tension adhesion-free prestress frame beam can transmit the presstress by the anchorage of the both ends,so it can be applied in the tension of the back-tension curve of the cast-in-place frame beam.