GB/T 39136-2020 in English
VALIDIntegrity requirements of superstructure fabrication for ship
- Issued on:2020-10-11
- Implemented on:2021-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
| Standard No: | GB/T 39136-2020 |
| Document status: | VALID |
| Title in English: | Integrity requirements of superstructure fabrication for ship |
| Title in Chinese: | 船舶上层建筑制造完整性要求 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-10-11 |
| Implemented on: | 2021-05-01 |
| ICS Classification: | 47.020.01-General standards related to shipbuilding and marine structures |
| Chinese Classification: | U06-Vessel technology |
| Professional Classification: | GB-National Standard |
| Related Keywords: | integrity requirements
technical dimensions structural assembly requirements following requirements special requirements added requirements |
| Related Topics: | integrity
whole Ship equipment manufacturing upper layer full version Integrity + Sterility all GBT39136 GB/T 39136-2020 The significance of acrosome integrity |
《GB/T 39136-2020船舶上层建筑制造完整性要求》由TC12（全国海洋船标准化技术委员会）归口，TC12SC2（全国海洋船标准化技术委员会造船工艺分会）执行，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
This standard systematically specifies the integrity requirements of ship superstructures in three major areas: structural assembly, outfitting engineering and painting process, and is applicable to mainstream ship types such as bulk carriers, oil tankers, and container ships. The technical terms cover the entire manufacturing process from raw material processing to overall section delivery.
Comparison of key technical indicators
| Technical dimensions | Structural assembly requirements | Outfitting engineering standards | Painting specifications |
|---|---|---|---|
| Precision control | Dimensional tolerance ≤±5mm, horizontality ≤3mm/m | Pipeline straightness ≤1‰, equipment positioning deviation ≤10mm | Dry film thickness ≥200μm (outdoor area) |
| Tightness test | 100% visual inspection of welds | 0.2MPa flushing test for watertight doors | Salt spray test ≥500 hours |
| Material protection | Isolation treatment of stainless steel contact surface | Wrapping protection of non-ferrous metal pipe fittings | 50mm anti-rust belt in weld reserved area |
Key points for implementation of key clauses
Typical case of structural assembly
During the construction of the main section of the driving deck of a 200,000-ton bulk carrier, special attention should be paid to the following:
- Vertical degree of radar mast base ≤1/1000
- Retain 50mm welding allowance at the closing mouth
- Spacing between temporary reinforcements ≤1.5 times the spacing between aggregates
Special requirements for outfitting projects
The superstructure of oil tankers must additionally meet the following requirements:
- Explosion-proof grade of electrical equipment in hazardous areas Ex dⅡBT4
- Double-tube design for domestic sewage pipes
- 30-minute pressure test for kitchen CO2 fire extinguishing system
Analysis of standard evolution
Compared with the old version of the specification, the 2020 version has the following major improvements:
- Added requirements for assembly of composite materials structures
- Detailed specifications for laying of network cables for smart ships
- Introduction of ISO 20673-2018 coating durability standard
Implementation suggestions
Key points of stage control:
| Prefabrication stage | Use 3D scanning for modular precision pre-control |
| General assembly stage | Implement a "zero omission" inspection system for outfitting parts |
| Coating stage | Establish a real-time monitoring system for temperature, humidity and film thickness |
Common problem handling: Fire-resistant silicone sleeves are required for cable protection in the closing area, and PVC temporary wrapping is prohibited.
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