现浇多跨连续梁桥钢绞线长束的预应力张拉施工

预应力技术是现代桥梁建设中越来越重要的手段,确保预应力施工的质量,是多跨连续梁桥施工质量和工期的关键。总结了多跨现浇连续梁桥的钢绞线长束张拉施工实践中容易遇到的问题、采取的施工工艺及提高预应力质量的控制措施,有关经验可供相关专业人员参考。

Prestressing Tensioning Construction of Long Steel Strand Bundle for Cast-in-situ Multi-span Continuous Beam Bridge

Prestressing technique is the more important means in the modern bridge construction,and to ensure the quality of prestressing construction is the key for the construction quality and period of the multi-span continuous beam bridge.The article summarizes the easily caused problems,the taken construction technology and the control measures enhancing the pretressing quality in the practice of long steel strand bundle construction for the multi-span cast-in-situ continuous beam bridge.The relative experience can be referred for the relevant professional members.