Application and development of prestressing technique in prestressed concrete bridge

Journal of Chongqing Jiaotong University(Natural Science) ›› 2006, Vol. 25 ›› Issue (5): 9-12.

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Application and development of prestressing technique in prestressed concrete bridge

LIU Shan-hong^1,2

1.Post Doctor Station of Transpotation and Traffic School, Southwest Jiaotong University, Sichuan Chengdu 610031, China; 2.Department of Bridge and Structure, Chongqing Jiaotong University, Chong qing 400074, China

Received:2005-08-08 Revised:2005-10-17 Online:2006-10-15 Published:2015-05-18

预应力砼桥梁张拉技术的发展与应用

刘山洪^1，2

1.西南交通大学交通运输工程博士后流动站，四川成都 610031; 2.重庆交通大学土木建筑工程学院，重庆 400074

作者简介:刘山洪（1968—），男，重庆垫江人，博士后，主要研究方向为高性能预应力砼桥梁结构行为及计算理论.

Abstract

Abstract: Improvement of prestressing technique is needed by development of concrete performance used in long span concrete bridge engineering.Deficiencies of prestressing technique used in construction are presented now adays. Several common schemes and capabilities of primary sensors used in new types of prest ressing equipments controlled by digital computers are also described. It can be used as improvement references of construction techniques by now .

Key words: prest ressed concrete, bridge, prestr essing technique, numerical control

摘要： 大跨预应力砼桥梁工程采用的砼性能进一步需要与之配合的预应力张拉施工工艺的改进.介绍了现有预应力张拉工艺的不足,新型数控预应力张拉设备中涉及的主要传感器性能及几种常见的系统组建措施,对改进现有的施工工艺有一定的借鉴意义.

关键词: 预应力砼, 桥, 张拉工艺, 数控

CLC Number:

LIU Shan-hong. Application and development of prestressing technique in prestressed concrete bridge[J]. Journal of Chongqing Jiaotong University(Natural Science), 2006, 25(5): 9-12.

刘山洪. 预应力砼桥梁张拉技术的发展与应用[J]. 重庆交通大学学报（自然科学版）, 2006, 25(5): 9-12.

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Application and development of prestressing technique in prestressed concrete bridge

预应力砼桥梁张拉技术的发展与应用

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