CN202055077U - 一种1×7i预应力刻痕钢绞线 - Google Patents

一种1×7i预应力刻痕钢绞线 Download PDF

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Publication number
CN202055077U
CN202055077U CN201120019694.5U CN201120019694U CN202055077U CN 202055077 U CN202055077 U CN 202055077U CN 201120019694 U CN201120019694 U CN 201120019694U CN 202055077 U CN202055077 U CN 202055077U
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China
Prior art keywords
steel
steel strand
wire
millimeters
strand wire
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Expired - Fee Related
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CN201120019694.5U
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谢志峰
闫崇建
连江
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Tianjin Silvery Dragon Prestressed Materials Co Ltd
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SILVERY DRAGON PC STEEL PRODUCTS GROUP CO Ltd TIANJIN
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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

本实用新型提供一种1×7I预应力刻痕钢绞线，所述的钢绞线由七根钢丝拧制而成，芯丝为一根光圆钢丝，边丝为六根沿径向四面带有刻痕的钢丝，四面刻痕互成90°，所述刻痕为平行四边形，且其深度为0.03mm-0.2mm，刻痕长度为3mm-5mm，刻痕节距为5.0mm-8.5mm。本实用新型的有益效果是增加了钢绞线与混凝土的握裹力，解决了芯丝与边丝滑移回缩问题，保持了钢绞线良好的力学性能，提高了预应力混凝土构件质量。

Description

一种1×7I预应力刻痕钢绞线
技术领域
本实用新型涉及一种建筑行业用预应力钢材技术领域，特别是涉及到一种预应力混凝土构件中所使用的一种1×7I预应力刻痕钢绞线。 
背景技术
建筑行业中的预应力混凝土构件，为了增加构件抗压、抗震等力学性能，大都使用预应力钢丝或钢绞线作配筋。其配筋与混凝土之间的握裹力的好坏是决定预应力混凝土构件质量的重要因素。 
现在技术的预应力混凝土构件采用光圆钢丝或单根规律变形钢丝或开有对称刻痕钢丝作或由以上钢丝拧制而成的钢绞线为预应力混凝土构件配用主筋，存在如下问题：1、光圆钢丝表面是光滑的，握裹力较小；2、有光圆钢丝拧制而成的钢绞线，仅仅靠光圆钢丝之间的非有效接触的摩擦力产生对混凝土构件的回压应力，极易产生芯丝边部滑移回缩，致使芯丝应力减少或完全失去应力，制约了预应力混凝土构件的质量和寿命，而且降低了钢绞线与混凝土的握裹力；3、单根规律变形钢丝或开有对称刻痕钢丝或由以上钢丝拧制而成的钢绞线，与混凝土之间的握裹力较小，尤其前者应力集中严重，导致预应力混凝土构件质量较差。 
发明内容
本实用新型的目的在于为了克服现有技术中的不足而提供一种增强与混凝土握裹力，强度高，解决芯丝和边丝滑移回缩问题，力学性能好，应用范围广的一种1×7I预应力刻痕钢绞线。 
本实用新型所采用的技术方案为：一种1×7I预应力刻痕钢绞线，所述的钢绞线由七根钢丝拧制而成，芯丝为一根光圆钢丝，边丝为六根沿径向四面带有刻痕的钢丝，四面刻痕互成90°，所述刻痕为平行四边形，且其深度为0.03mm-0.2mm，刻痕长度为3mm-5mm，刻痕节距为5.0mm-8.5mm。 
本实用新型的有益效果是：增加了钢绞线与混凝土的握裹力，解决了芯丝与边丝滑移回缩问题，保持了钢绞线良好的力学性能，提高了预应力混凝土构件质量。 
附图说明
图1是本实用新型结构示意图。 
图2是本实用新型刻痕钢丝外形结构示意图。 
其中：1、钢绞线    2、边丝    3、刻痕    4、芯丝 
具体实施方式
为了进一步说明本实用新型的发明内容及特点，结合实施例具体说明如下：如图1、图2所示，本实用新型所述的钢绞线1由七根钢丝拧制而成，芯丝4为一根光圆钢丝，边丝2为六根沿径向四面带有刻痕3的钢丝，四面刻痕3互成90°，所述刻痕3为平行四边形，且其深度为0.03mm-0.2mm，刻痕3长度为3mm-5mm，刻痕3节距为5.0mm-8.5mm。 
以上所述仅仅是本实用新型的较佳实施例，并非对本实用新型的范围进行限定，本领域普通技术人员对本实用新型的技术方案做出的各种变形和改进，均应落入本实用新型保护范围内。 

Claims (1)

1.一种1×7I预应力刻痕钢绞线，其特征在于：所述的钢绞线由七根钢丝拧制而成，芯丝为一根光圆钢丝，边丝为六根沿径向四面带有刻痕的钢丝，四面刻痕互成90°，所述刻痕为平行四边形，且其深度为0.03mm-0.2mm，刻痕长度为3mm-5mm，刻痕节距为5.0mm-8.5mm。 
CN201120019694.5U 2011-01-21 2011-01-21 一种1×7i预应力刻痕钢绞线 Expired - Fee Related CN202055077U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018373A (zh) * 2014-06-23 2014-09-03 贵州钢绳股份有限公司 1×7刻痕钢绞线生产工艺

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104018373A (zh) * 2014-06-23 2014-09-03 贵州钢绳股份有限公司 1×7刻痕钢绞线生产工艺

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Owner name: TIANJIN SILVERY DRAGON PRESTRESSED MATERIALS CO.,

Free format text: FORMER NAME: SILVERY DRAGON PC STEEL PRODUCTS GROUP CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 300400 Tianjin City, Beichen economic and Technological Development Zone Industrial Park Road No. 62 dual Shuangjiang

Patentee after: Tianjin Silvery Dragon Prestressed Materials Co., Ltd.

Address before: 300400 Tianjin City, Beichen economic and Technological Development Zone Industrial Park Road No. 62 dual Shuangjiang

Patentee before: Silvery Dragon PC Steel Products Group Co., Ltd. Tianjin

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111130

Termination date: 20140121