预应力锚束张拉锁定损失控制  

Control of locking loss from pulling of prestressed anchorage cables

作　　者：刘德勇 尤小光 

机构地区：[1]嫩江尼尔基水利水电有限责任公司,内蒙古莫力达瓦旗162805 [2]中国水利水电第一工程局,吉林永吉132200

出　　处：《水利水电技术》2006年第1期82-84,共3页Water Resources and Hydropower Engineering

摘　　要：预应力混凝土闸墩可以简化泄水建筑物结构、节省大量钢筋和方便施工,因此被越来越多地采用。锚束张拉中锁定损失控制是张拉过程中较为棘手的问题,锚束愈短愈难达到设计要求。针对此问题,就理论分析和实际操作控制方面提供了可借鉴的经验。The structure of water release structure can be simplified with the prestressed concrete piers, which is also characterized by saving of reinforcement bars and convenience of construction. Therefore, it is more widely used in the field concerned. However, one of the problems from the pulling of the anchorage cables is the control of the locking loss during the pulling, because the shorter are the cables, the more difficult is to meet the design requirement for it. For this problem, some engineering experiences available for reference are introduced herein based on both the theoretical analysis and the practical application.

关 键 词：锁定损失控制 锚束张拉 预应力混凝土 尼尔基水利枢纽 内蒙古自治区 

分 类 号：TV651.1[水利工程—水利水电工程]