GB/T 34327-2017 in English
VALIDTerminology for curtain wall
- Issued on:2017-10-14
- Implemented on:2018-09-01
- File Format:PDF
- Delivery:Within 1 day
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| Standard No: | GB/T 34327-2017 |
| Document status: | VALID |
| Title in English: | Terminology for curtain wall |
| Title in Chinese: | 建筑幕墙术语 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2017-10-14 |
| Implemented on: | 2018-09-01 |
| ICS Classification: | 91.060.10-Walls. Partitions. Facades |
| Chinese Classification: | P32-Building construction and decoration engineering |
| Professional Classification: | GB-National Standard |
| Related Keywords: | curtain wall
point-supported curtain wall rib-supported curtain wall structure frame-supported curtain wall curved glass curtain wall |
| Related Topics: | GB/T 34327-2017
GB/T+34327-2017 wall construction technology curtain wall gb/t34327 building curtain wall "Building Curtain Wall Terracotta panels for building curtain walls GBT34327 GB/T 34327-2017 european curtain wall Curtain wall sound insulation European and domestic standards for building curtain walls |
《GB/T 34327-2017建筑幕墙术语》由TC448（全国建筑幕墙门窗标准化技术委员会）归口，主管部门为住房和城乡建设部。
Introduction
Analysis of the core content of the standard
| Technical system | Number of terms | Key terms |
|---|---|---|
| Curtain wall classification | 42 categories | Unitized curtain wall, point-supported curtain wall, photovoltaic curtain wall |
| Performance parameters | 15 items | Wind pressure resistance, seismic resistance, thermal performance |
| Structural terms | 8 categories | Fireproof blocking structure, lightning protection connection structure |
Curtain wall classification technology system
Classification by supporting structure
- Frame-supported curtain wall: includes three installation systems: component-type, unit-type and semi-unit-type
- Point-supported curtain wall: two major systems of steel structure and cable structure, with a maximum span of 15 meters
- Rib-supported curtain wall: the maximum height of the glass rib should not exceed 12 meters
Typical engineering applications
Shanghai Tower adopts a unitized double-layer curtain wall system, with the outer layer being a curved glass curtain wall and the inner layer being a class=instrument>Aluminum frame curtain wall, air interlayer is equipped with mechanical ventilation system, thermal performance reaches SHGC≤0.28.
Interpretation of key performance indicators
Seismic performance requirements
The standard stipulates that the curtain wall should meet the deformation capacity of 1/100 inter-story displacement angle, and X/Y/Z three-dimensional seismic verification test is required for 8-degree seismic fortification areas.
Comparison of thermal parameters
| Curtain wall type | Heat transfer coefficient (W/m²·K) | Shading coefficient |
|---|---|---|
| Single-layer glass curtain wall | 5.7-6.4 | 0.8-0.9 |
| Double-layer breathing curtain wall | 1.2-1.8 | 0.3-0.5 |
Suggestions for the implementation of the standard
- The bonding width requirements of the structural assembled glazing components should be clearly marked in the design stage
- During construction, it is important to control the curing environment of the silicone structural sealant (temperature 23±2℃, humidity 50±5%)
- During acceptance, a repeated opening and closing test shall be carried out in accordance with Clause 7.14 (window sashes ≥10,000 times, hardware ≥25,000 times)
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