DIN 15018 Crane Steel Structure Design Standard Explained
DIN 15018 Crane Steel Structure Design Specification is a key technical standard in the crane industry. Developed by the German Institute for Standardization (DIN), it defines the design requirements for crane steel structures.
The standard provides a unified technical basis for designers, inspection bodies, and users. Kelude strictly adheres to its technical requirements throughout product development and manufacturing.
Scope and Application of DIN 15018
DIN 15018 specifies the technical requirements for crane steel structures, covering all types of lifting appliances with a Rated Lifting Capacity above 0.5t. The standard applies not only to the design and manufacturing of new equipment but also provides clear technical guidance for the inspection, maintenance, and modification of existing cranes. It aligns with the EN 13001 Crane Safety Standard series and ISO 4309 Wire Rope Inspection Standard, forming a comprehensive technical specification framework. The defined technical parameters and Safety factor requirements give designers a clear design basis and offer third-party inspection bodies quantifiable acceptance criteria for Type Tests and Factory Acceptance Tests. As a critical component of the crane standard system, it works in conjunction with EN 13001 and ISO 4309 to establish a complete regulatory framework.
Core Technical Parameters Overview
Design and manufacturing under DIN 15018 must meet a stringent set of technical parameters. These values are derived from extensive test data and safety engineering principles, covering everything from material selection to structural design.
Comparative Analysis of Key Parameters
| Item | technical requirements | Description |
|---|---|---|
| design method | allowable stress method Grouping H/B1/B2 | Grouping Safety factor Different |
| Safety factor | HGroup1.71/B1Group1.50/B2Group1.50 | Group by Importance |
| Deflection | Full load≤L/1000Stricter than International | Side bow / lateral bow≤L/2000 |
| Fatigue Design | A6Classand Above Shall | Per DIN 15018Appendix |
| Stability | Integral Overturning+Web plate Local Buckling | Stiffener Design |
| Steel | St37(≥235MPa)/St52(≥355MPa) | Low-Temperature Service St52-3 |
Inspection Requirements and Intervals
Factory Acceptance Test (FAT) is performed on every unit at the manufacturer's facility by the quality inspection department. Equipment that passes the test is shipped with a detailed inspection report and a Certificate of Conformity. For equipment already in service, the periodic inspection interval generally does not exceed 12 months.
| Item | technical requirements | Description |
|---|---|---|
| Deflection | Level Instrument | Annual+≤L/1000 |
| Weld Seam UT | Main Weld Seam100% | Annual |
| Stability | Stiffener Deformation | Annual+Repair-on-Detection |
| coating corrosion protection | Thickness Corrosion | Annual+Damage>5%Repair |
Safe Operation and Management Requirements
The standard places strong emphasis on operator qualification and training, requiring that all operators complete specialized training and obtain the necessary certifications before assuming their duties.
FAQ
Q: How are design groups and safety factors defined in the DIN 15018 crane steel structure design specification?
A: Group H main girders require a safety factor of 1.71, while Groups B1/B2 require 1.50. This demonstrates that the standard is more stringent than international requirements across all groups.
Q: Does DIN 15018 impose stricter deflection limits on main girders than international standards?
A: Yes. The allowable deflection is L/1000, which is tighter than the L/800 required by international standards. Lateral bow is limited to ≤L/2000.
Q: What are the fatigue design requirements for steel structures under DIN 15018?
A: Fatigue design for grades A6 and Above must be carried out in accordance with the appendices of DIN 15018.
Q: How does DIN 15018 specify the selection of steel grades for crane steel structures?
A: St37 is used for standard applications, St52 for high-strength requirements, and St52-3 is mandatory for environments with temperatures down to -20°C.
Kelude Heavy Industry — Specialized in Crane Design and Manufacturing.
