CN201330471Y - 高强度低松弛预应力钢绞线 - Google Patents

高强度低松弛预应力钢绞线 Download PDF

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Publication number
CN201330471Y
CN201330471Y CN200820232048.5U CN200820232048U CN201330471Y CN 201330471 Y CN201330471 Y CN 201330471Y CN 200820232048 U CN200820232048 U CN 200820232048U CN 201330471 Y CN201330471 Y CN 201330471Y
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China
Prior art keywords
steel strand
stressed steel
limit
indentation
nick
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Expired - Fee Related
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CN200820232048.5U
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English (en)
Inventor
杨久龙
杨楠
李伟
王御龄
尹一
杨桂瑜
徐壮
赵振伟
石金英
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Liaoning Tongda Building Material Industrial Co Ltd
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Liaoning Tongda Building Material Industrial Co Ltd
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Priority to CN200820232048.5U priority Critical patent/CN201330471Y/zh
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    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B5/00—Making ropes or cables from special materials or of particular form
    • D07B5/005—Making ropes or cables from special materials or of particular form characterised by their outer shape or surface properties
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand configuration
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/2002—Wires or filaments characterised by their cross-sectional shape
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/2007—Wires or filaments characterised by their longitudinal shape
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2501/00—Application field
    • D07B2501/20—Application field related to ropes or cables
    • D07B2501/2015—Construction industries
    • D07B2501/2023—Concrete enforcements

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  • Reinforcement Elements For Buildings (AREA)

Abstract

高强度低松弛预应力钢绞线涉及一种预应力钢绞线。主要是为解决现有的预应力钢绞线与混凝土结合力比较低的问题而设计的。它包括中心丝和边丝，中心丝为光面，边丝表面设刻痕。每个边丝表面均匀刻有3条刻痕，其中一条边丝上的刻痕与另两条边丝上的刻痕的方向相反，刻痕节距a＝5.5±0.5mm，刻痕间距b＝2.0±0.5mm，刻痕深度h＝0.07±0.03mm。优点是与混凝土的结合力高，可增加预应力混凝土的安全性和使用寿命。

Description

高强度低松弛预应力钢绞线
技术领域：
本实用新型涉及一种预应力钢绞线。
背景技术：
现有的预应力钢绞线都是光面的，缺点是与混凝土结合力比较低。
发明内容：
本实用新型所要解决的技术问题是提供一种与混凝土结合力高的高强度低松弛预应力钢绞线。
本实用新型的目的是这样实现的：它包括中心丝和边丝，中心丝为光面，边丝表面设刻痕。
每个边丝表面均匀刻有3条刻痕，其中一条边丝上的刻痕与另两条边丝上的刻痕的方向相反，刻痕节距a＝5.5±0.5mm，刻痕间距b＝2.0±0.5mm，刻痕深度h＝0.07±0.03mm。
本实用新型的优点是：由于边丝表面有刻痕，所以与混凝土的结合力高，可增加预应力混凝土的安全性和使用寿命。
附图说明：
图1是本实用新型的整体结构示意图；
图2是本实用新型的边丝表面刻痕图；
图3是本实用新型的边丝断面图。
具体实施方式：
参照图1-3，它包括中心丝1和边丝2，中心丝为光面，边丝表面设刻痕3。
以1770Mpa级的钢丝为原料，钢绞线采用1×7结构，捻距是直径的14-16倍，中心丝为光面，直径d1为边丝直径do的1.03倍以上，每根边丝表面均匀刻3条刻痕，其中的一条刻痕与另外的两条刻痕方向相反，刻刻痕节距a＝5.5±0.5mm，刻痕间距b＝2.0±0.5mm，刻痕深度h＝0.07±0.03mm。生产时，采用优质高碳钢盘条拉制高强度钢丝，然后对钢丝进行三面刻痕处理，得到如上所述的刻痕形状和尺寸，再将6根刻痕钢丝作为钢绞线的边丝，中心丝仍采用光面钢丝，按规定的捻距进行捻制，最后进行感应加热、张拉、冷却的稳定化处理。

Claims (2)

1、高强度低松弛预应力钢绞线，包括中心丝(1)和边丝(2)，中心丝为光面，其特征是：边丝表面设刻痕(3)。
2、按照权利要求1所述的高强度低松弛预应力钢绞线，其特征是：每个边丝表面均匀刻有3条刻痕，其中一条边丝上的刻痕与另两条边丝上的刻痕的方向相反，刻痕节距a＝5.5±0.5mm，刻痕间距b＝2.0±0.5mm，刻痕深度h＝0.07±0.03mm。
CN200820232048.5U 2008-12-25 2008-12-25 高强度低松弛预应力钢绞线 Expired - Fee Related CN201330471Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200820232048.5U CN201330471Y (zh) 2008-12-25 2008-12-25 高强度低松弛预应力钢绞线

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CN200820232048.5U CN201330471Y (zh) 2008-12-25 2008-12-25 高强度低松弛预应力钢绞线

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CN201330471Y true CN201330471Y (zh) 2009-10-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102725461A (zh) * 2009-12-07 2012-10-10 阿蒙有限公司 钢筋缆索

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102725461A (zh) * 2009-12-07 2012-10-10 阿蒙有限公司 钢筋缆索

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Granted publication date: 20091021

Termination date: 20161225