GB/T 37347-2019 in English
VALIDStructure details for self-elevating drilling units
- Issued on:2019-03-25
- Implemented on:2019-10-01
- File Format:PDF
- Delivery:Via email within 5 business days
Price(USD)：
$750.00
$728.00
$728.00
《GB/T 37347-2019自升式钻井平台节点结构》由TC12（全国海洋船标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
| Node type | Technical points | Typical parameters |
|---|---|---|
| Through holes and patch plates | Design specifications for through holes of 8 types of profiles | R1=35/50mm, H1=40-100mm |
| End connection | Reinforcement/longitudinal bone end treatment | Bevel angle 30°, overlap length 50-100mm |
| Pipe node welding | Technical requirements for Class 5 weld areas | Groove angle 37.5°-60° |
Key technology evolution
L3 profile through hole adopts web root retention design, which is 23% stronger than the traditional angle steel node strength. The standard clarifies for the first time the matching relationship between the R1 radius and H1 height of the bulb flat steel patch welding to solve the stress concentration problem in marine corrosion environment.
Implementation suggestions
- Double-sided groove welding is preferred for through-hole patch welding, and the weld leg size should be ≥ t/2+1.5mm (t is the thickness of the thinner plate)
- The selection of pillar pads should match the thickness according to the diameter. φ300-350mm pillars should use 14mm pads
- The welding of cantilever beam V-shaped plates must ensure that the center alignment deviation is ≤3mm
Special structural treatment
| Application scenarios | Solutions | Standard clauses |
|---|---|---|
| Pillars in liquid tanks | Cylindrical columns are prohibited | Chapter 11.1 |
| Deep penetration welding requirements | PP welding is used when the plate thickness is greater than 19mm | Chapter 13 |
Sample only — not a preview of GB/T 37347-2019
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