摘要
结合1960 MPa级钢丝加工技术和1960 MPa级钢丝主缆应用的调研工作,介绍国内外已经取得的成果。提高主缆钢丝强度等级能直接减少钢丝用量,减小主缆直径,减少主缆耗材和风阻;改进结构设计和施工技术工艺,也可以减少主缆钢丝用量。提高桥梁缆索用高碳钢丝强度的主要方法:提高索氏体化盘条的强度,增加钢丝冷拔的总变形量,增加钢丝冷拔的加工硬化率,降低镀锌(或锌铝合金)过程的强度损失。在提高钢丝强度的同时需要保证钢丝的韧性,热处理强化(LP、DP、DLP)和微合金强化是综合提高钢丝强度和韧性的有效韧化处理手段。以韩国蔚山大桥为例,介绍1960 MPa级钢丝和悬索桥主缆应用。
Combining with 1 960 MPa grade steel wire production technical and 1 960 MPa grade steel wire main cable application research work,the results have gained at home and abroad are introduced. To increase strength grade of main cable steel wire can decrease steel wire consumption directly,decrease main cable diameter,reduce main cable consumables and wind resistance. To improve structure design and construction technology can decrease main cable steel wire consumption. The main methods to increase strength of high carbon steel wire for bridge cable are as follows: increase strength of sorbiting wire rod,increase total deformation rate of steel wire cold drawn,increase work hardening rate of steel wire cold drawn,decrease strength loss of zinc plating( or zinc-aluminium alloy). While steel wire strength is increased,steel wire toughness is guaranteed at the same time,heat treatment strengthening( LP,DP,DLP) and micro-alloy strengthening are effective toughness treatment methods of comprehensive increasing steel wire strength and toughness. To take Korea Ulsan bridge as example,1 960 MPa steel wire and suspension bridge main cable application are introduced.
出处
《金属制品》
2015年第2期1-6,共6页
Metal Products
关键词
悬索桥
主缆
盘条
1960
MPa级高强度钢丝
热处理
微合金化
索氏体化
suspension bridge
main cable
wire rod
1 960 MPa grade high strength steel wire
heat treatment
micro-al-loy
sorbitizing
作者简介
1957年生,中铁大桥局武汉桥梁科学研究院有限公司,广东省公路建设总公司虎门二桥分公司高级工程师。
1976年生,广东省公路建设总公司虎门二桥分公司高级工程师。
1980年生,广东省公路建设总公司虎门二桥分公司高级工程师。
1978年生,广东省公路建设总公司虎门二桥分公司高级工程师。