预应力钢束张拉作业指导书

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1、预应力钢束张拉作业指导书编制：审核：批准：目录1目的··············································································22编制依据············································································23适用范围··········································································

2、··24作业准备············································································24.1技术准备··········································································24.2材料、设备准备·····································································25.劳动组织·············

3、······························································25.1劳动力组织方式····································································25.2施工人员结合既定施工方案、机械、工期要求进行合理配置································26材料要求·························································

4、··················26.1预应力钢绞线·····································································36.2锚具、夹具········································································37设备机具配置······································································38.张拉程序与工艺

5、流程································································49.施工要求·········································································49.1技术要求·········································································49.2钢绞线下料、穿束···························

6、········································49.3锚具及千斤顶安装··································································49.4张拉··············································································59.5伸长量的计算和量测···················································

7、·············510.预应力施工质量控制及检验··························································610.1质量控制·········································································610.2质量检验·········································································611.安全及环保要求····

8、································································7预应力钢束张拉作业指导书1目的：新建XX铁路(安徽段)XX长江北引桥（40+56+40）m是施工中重点控制部位，为了确保悬臂浇筑连续梁张拉的施工质