GB/T 26470-2025 in English
VALIDGeneral specification for launching machine
- Issued on:2025-05-30
- Implemented on:2025-12-01
- File Format:PDF
- Delivery:Within 1 day
$466.00
| Standard No: | GB/T 26470-2025 |
| Document status: | VALID |
| Title in English: | General specification for launching machine |
| Title in Chinese: | 架桥机通用技术条件 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2025-05-30 |
| Implemented on: | 2025-12-01 |
| Superseding: |
GB/T 26470-2011 General specification for launching machine
|
| ICS Classification: | 53.020.99-Other lifting equipment |
| Chinese Classification: | J80-Hoisting machinery |
| Professional Classification: | GB-National Standard |
| Related Keywords: | new intelligent monitoring items
verticality monitoring system safety monitoring machine introduction core changes version2025 versiontechnology improvement safety monitoring basic protection device |
| Related Topics: | bridge
|
《GB/T 26470-2025架桥机通用技术条件》由TC227（全国起重机械标准化技术委员会）归口，TC227SC3（全国起重机械标准化技术委员会桥式和门式起重机分会）执行，主管部门为中国机械工业联合会。
Introduction
Core changes in the standard revision
| Revision areas | 2011 version | 2025 version | Technology improvement |
|---|---|---|---|
| Safety monitoring | Basic protection device | Added 8 new intelligent monitoring items (verticality detection, anti-collision, etc.) | Internet of Things technology integration |
| Through-hole method | 2 categories | Added 3 new categories: walking type/track type/tire type | Adapt to complex terrain |
| Braking system | Single brake | Dual brake + safety brake (coefficient ≥1.75) | Redundant safety design |
Key performance parameter specifications
Priority value system
- Rated lifting capacity: Covering 26 gradients from 60-3000t
- Erection span: 20-130m to adapt to different bridge requirements
- Wind resistance level: 150Pa (level 5) in working state, 1200Pa (level 11) in non-working state
Structural accuracy requirements
| Test items | Allowable deviation | Measurement method |
|---|---|---|
| Main beam camber | ±S/5000 | Theodolite mid-span measurement |
| Trolley gauge | ±8mm | Three-point detection method with steel ruler |
| Rail joint misalignment | ≤1mm (non-truss) | Flat gauge with feeler gauge |
Implementation points and risk control
Typical application scenarios
Withwalking through-hole bridge-building machine as an example:
- It is necessary to verify that the foundation bearing is ≥1.1 times the wheel pressure (Article 5.1.6)
- The cantilever deflection is ≤L/350 when passing through the hole (5.2.24b)
- Real-time alarm of the verticality monitoring system of the outrigger (5.8.3b)
Core improvements of the new version
- Material upgrade: Steel below Grade B is prohibited for main structural parts (5.3.1.1)
- Connection process: 100% non-destructive testing of welds in tension areas (5.3.2.3)
- Intelligent monitoring: New digital requirements such as driver identification and beam piece counting
Standard evolution analysis
This revision reflects three major technological trends:
- Safety redundancy: dual protection design such as braking system and outrigger locking
- Modular development: new specifications for special beam trolleys for segment assembly
- Intelligent transformation: the safety monitoring and management system is fully aligned with GB/T 28264
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