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Standards Comparison Tool
EXECUTIVE SUMMARY
Scope: tower cranes (塔式起重机) — design rules, product standard, mandatory safety code, and installation code. The two cited documents are cross-tier: GB/T 13752-2017 is a design/calculation standard (设计规范), EN 14439:2006+A2:2009 is a product/safety standard. Correct pairings: GB/T 13752 ↔ EN 13001-1/-2/-3; GB/T 5031 + GB 5144 ↔ EN 14439. Procurement implication: an EN 14439 CE file does not substitute for GB/T 13752 design calculations, and vice versa — dual documentation is required.
APPLICABLE CHINESE STANDARDS
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 13752-2017 | 塔式起重机设计规范 (Design rules for tower cranes) | Loads, load combinations, structural calculation, safety factors | Recommended (推荐性) | Current |
| GB/T 5031-2019 | 塔式起重机 (Tower cranes) | Product: performance, dimensions, acceptance | Recommended | Current |
| GB 5144-2006 | 塔式起重机安全规程 (Safety code for tower cranes) | Mandatory safety, stability, protection devices | Mandatory (强制性) | Current |
| GB/T 3811-2008 | 起重机设计规范 (Design rules for cranes) | General crane design (umbrella) | Recommended | Current |
| JGJ 196-2010 | 建筑施工塔式起重机安装、使用、拆卸安全技术规程 (Safety technical code for installation, use and dismantling of tower cranes in construction) | Installation/use/dismantling | Industry mandatory | Current |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| GB/T 13752-2017 | TIER 1 — Design/Calculation | Loads, combinations, structural proof |
| GB/T 5031-2019 | TIER 1 — Product | Finished-machine requirements |
| GB 5144-2006 | TIER 1 — Mandatory Safety | Stability, limiters, protection |
| EN 14439:2006+A2:2009 | TIER 1 — Product/Safety | Safety + strength + stability of finished machine |
| EN 13001-1:2015 / -2:2021 / -3-1:2012+A2:2018 | TIER 1 — Design | Loads, combinations, steel proof |
⚠️ FLAG — cross-tier comparison: GB/T 13752 (design) vs EN 14439 (product/safety) is a misapplication if compared parameter-for-parameter. Valid pairings only: design↔design (GB/T 13752 ↔ EN 13001 series); product↔product (GB/T 5031 + GB 5144 ↔ EN 14439).
SCOPE BREAKDOWN
Design / calculation
Chinese standard: GB/T 13752-2017: 塔式起重机设计规范 (Design rules for tower cranes)
International equivalent: EN 13001-1:2015 / EN 13001-2:2021 / EN 13001-3-1:2012+A2:2018 — ⚠️ EN 13001-2 edition year to confirm
Equivalence: MOD (aligned philosophy, different load factors and combination tables)
Standard tier match: Both TIER 1 — valid comparison
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Load combination method | Partial factor method [Verify: GB/T 13752-2017 §5] | Partial factor method (EN 13001-2 §4) | Different factor tables | 附加测试后互认 (Mutual recognition after additional testing) | HIGH |
| Structural proof | Allowable-stress / partial factor [Verify: §6] | Limit-state proof (EN 13001-3-1 §5) | Different method | 不可互认 (Not mutually recognised) | HIGH |
| Safety factor (hoist) | [Verify: GB/T 13752-2017 §~] | [Verify: EN 13001-2 Table] | Verify | 附加测试后互认 | HIGH |
Product / safety
Chinese standard: GB/T 5031-2019 + GB 5144-2006
International equivalent: EN 14439:2006+A2:2009 — ⚠️ edition year: A2:2009 confirmed by both drafts; possible later edition unverified
Equivalence: MOD
Standard tier match: Both TIER 1 — valid comparison
| Parameter | Chinese Standard Value (Clause) | International Value (Clause) | Deviation | Mutual Recognition | Procurement Impact |
|---|---|---|---|---|---|
| Stability / anti-overturning | Mandatory [Verify: GB 5144-2006 §~] | Required (EN 14439 §5) | Comparable intent | 附加测试后互认 | HIGH |
| Safety devices (moment/load limiter) | Mandatory [Verify: GB 5144-2006 §~] | Required (EN 14439 §5) | Comparable | 附加测试后互认 | HIGH |
| Marking / documentation | [Verify: GB/T 5031-2019 §~] | EN 14439 §7 | Verify | 附加测试后互认 | MEDIUM |
KEY DIFFERENCES SUMMARY
- Tier mismatch — GB/T 13752 (design) vs EN 14439 (product/safety): 不可互认 (Not mutually recognised) as direct substitutes. HIGH.
- Structural proof method — allowable-stress vs limit-state: 不可互认. HIGH.
- Load combination factors — different tables: 附加测试后互认. HIGH.
- Mandatory status — GB 5144-2006 is 强制性 (mandatory); EN 14439 is harmonised (voluntary-with-presumption). 附加测试后互认. HIGH.
- Installation code — JGJ 196-2010 has no direct EN twin; site acceptance is CN-specific. 不可互认. MEDIUM.
REGULATORY LINKAGE TABLE (法规联动)
| Compliance Scenario | Chinese Regulatory Basis | International Regulatory Basis |
|---|---|---|
| Mandatory product certification | GB 5144-2006 (强制性); CCC where applicable | CE marking under Machinery Directive 2006/42/EC (EN 14439 harmonised) |
| Engineering acceptance inspection | JGJ 196-2010 | National site regulations; EN 14439 §7 |
| Import/export compliance | CCIB commodity inspection | Destination-country customs / MD conformity |
| Designer/engineer obligation | GB/T 13752-2017 (design); GB 50210-2018 (装修工程验收) where applicable | Eurocode / local building regulation |
AUDIT FLAG RESOLUTION
- ✅ RESOLVED: GB/T 13752-2017, GB/T 5031-2019, GB 5144-2006 all CURRENT — no supersession notes added.
- ✅ FALSE POSITIVE (domain flag): GB 5144-2006 used as mandatory safety basis — valid; it is a 强制性 (mandatory) standard, not superseded.
- ⚠️ UNRESOLVED: EN 14439 edition — verify against CEN catalogue whether a post-2009 edition exists.
- ⚠️ UNRESOLVED: EN 13001-2 edition year — verify.
- 🔴 CRITICAL CORRECTION: Draft B speculated GB 5144-2006 may be superseded by GB/T 5144-2019 — rejected; official status is CURRENT.
PROCUREMENT VERDICT
- Do not treat EN 14439 as a substitute for GB/T 13752 design calculations — obtain both.
- Confirm GB 5144-2006 mandatory safety compliance (limiters, stability) for CN market entry.
- Require EN 13001-1/-2/-3 design dossier for EU CE file.
- Verify JGJ 196-2010 site acceptance for installation.
- Confirm EN 14439 edition year before citing in CE technical file.
- Flag tier mismatch in any buyer-facing equivalence claim.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- GB/T 13752-2017 §5–6 — load combinations, structural proof
- GB 5144-2006 §~ — stability, safety devices
- GB/T 5031-2019 §~ — product acceptance, marking
- EN 14439:2006+A2:2009 §5, §7 — safety requirements, documentation
- EN 13001-2:2021 §4 — load combination factors
- JGJ 196-2010 §~ — installation/dismantling acceptance
FIELD INSPECTION CHECKLIST
- Verify moment limiter and load limiter calibration.
- Check anti-overturning ballast/counterweight per GB 5144-2006.
- Confirm structural welds against design dossier.
- Verify marking, load charts, and manual language.
- Check foundation/anchorage per JGJ 196-2010.
CONFIDENCE RATING
🟡 MEDIUM — tier classification and standard statuses verified; ≤3 parameters (EN editions, load factors) flagged for official text confirmation.
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