Tensioning Squence of Bolt to Prestress in Pile-Anchor Support
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摘要: 以北京某深基坑支护工程为背景,结合现场桩锚支护体系预应力锚杆的实测数据,综合分析不同张拉顺序下锚杆预应力损失率变化规律。认为相同条件下依次张拉锁定的顺序,锚杆预应力值损失率最小。Abstract: Based on the deep foundation pit support project in Beijing,combined with measured data of prestressed bolt in pile-anchor support system,this paper comprehensively analyzed the regular pattern with time by the different tensioning sequence of bolt.Under the same conditions,it is considered that the prestress loss rate of the anchor is the smallest in the adjacent tensioning sequence
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Key words:
- prestress loss /
- anchor /
- tensioning sequence
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