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steel strand cable standard technical module key requirements test indicators cable body structure protective steel strand steel strand sheath thickness ≥1.5mm on-site inspection cable force measurement + sheath integrity photographic grade chemical sodium hydroxide ieee p1907 wearable device standard complementarity flap rudder scopethis standard
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  2. GB/T 30826-2014 in English
GB/T 30826-2014 in English

GB/T 30826-2014 in English

VALID

Technical conditions for steel strand cable of cable stayed bridge

  • Issued on:2014-06-24
  • Implemented on:2015-04-01
  • File Format:PDF
  • Delivery:Via email within 5 business days
Price(USD)： $550.00
$534.00
Standard No: GB/T 30826-2014
Document status: VALID
Title in English: Technical conditions for steel strand cable of cable stayed bridge
Title in Chinese: 斜拉桥钢绞线拉索技术条件
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 5 business days
Issued on: 2014-06-24
Implemented on: 2015-04-01
ICS Classification: 77.140.65-Steel wire, wire ropes and link chains
Chinese Classification: H49-Steel wire and wire rope
Professional Classification: GB-National Standard
Related Keywords: steel strand cable
standard technical module key requirements test indicators cable body structure
protective steel strand
steel strand sheath thickness ≥1.5mm
on-site inspection cable force measurement + sheath integrity
Related Topics: Zhou Gangqiao
steel strand
Strand Technology
Melasomine
GBT30826
GB/T 30826-2014
cable stayed bridge
House construction cable
Korean steel strand
gost 30826-2014

《GB/T 30826-2014斜拉桥钢绞线拉索技术条件》由TC183（全国钢标准化技术委员会）归口，TC183SC3（全国钢标准化技术委员会盘条及钢丝分会）执行，主管部门为中国钢铁工业协会。
本标准规定了斜拉桥钢绞线拉索的术语和定义、符号和说明、拉索结构、技术要求、拉索产品验收检
验、标志、包装、运输及贮存、拉索防腐与防护、拉索安装、拉索更换、拉索的检查等。
本标准适用于采用单根 PE 防护钢绞线作为受拉构件的斜拉桥钢绞线拉索(以下简称拉索)的设
计、试验与安装。
本标准适用于公路及城市道路桥梁的斜拉索,其他工程结构的拉索亦可参照使用。


Introduction

Interpretation of the core content of the standard

Technical module Key requirements Test indicators
Cable body structure 5-layer protection system (anchor section/transition section/free section/saddle section/accessories) Static load efficiency coefficient ≥0.95, total strain ≥2%
PE protected steel strand Sheath thickness ≥1.5mm, anti-corrosion grease dosage 15-30g/m 2 million fatigue tests (stress amplitude 300MPa)
Anchor assembly Forged alloy steel, hardness HRC28-35 No penetration after 6 weeks of water tightness test

Key points of technical innovation

The standard specifies for the first time the durability test method of PE protective steel strand:

  • Chemical stability: Passed the 45-day immersion test in CaCl2/NaOH/Ca(OH)2 solution
  • Chloride ion barrier: 45-day penetration of 3mol/L NaCl solution <10-4mol/L
  • Mechanical properties: 9N·m impact without cracking, wear resistance＞1000L/0.25mm

Implementation and application guide

Key points of construction control

  1. Single tension force deviation is controlled within ±2%
  2. Outer sheath installation reserves thermal expansion and contraction space
  3. Protective cover must be installed after the anchor is poured with anti-corrosion material

Acceptance inspection process

Phase Project Frequency
Factory inspection Ultrasonic flaw detection + hardness test 100% full inspection
Type inspection Fatigue test + watertightness test 5 years/time
On-site inspection Cable force measurement + sheath integrity 10% random inspection of each batch

Standard evolution analysis

Main improvements compared to the old version of the standard:

  • Added saddle fatigue test requirements (Appendix B)
  • Cleared the 30-year service life indicator of the anti-corrosion system
  • Detailed the 5 types of trigger conditions for cable replacement
  • Introduced digital archiving requirements (Article 10.6)

More samples: JJG 21-2008 JGJ 94-2008 DL/T 5154-2012
Sample only — not a preview of GB/T 30826-2014
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