后切式背栓干挂系统能有效的固定各种幕墙板材，隐藏的“内部楔形切”方法适用于各种建筑内部及外部装饰，由不锈钢背栓、铝合金连接件、金属龙骨组成的系统。随着社会经济的发展，人们生活品质的提高，对居住环境的品质提出了更高的要求，促进了幕墙装饰业的发展。随着石材、陶瓷板、陶土板在幕墙上的广泛使用，对幕墙安全性能、施工工艺提出了更高的要求。能提供最大承载并保证板材不受背栓挤压产生内应力，适用于8mm-30mm的各种板材。
No Essential characteristic Assessment method Type of expression of product performance (level, class, description) Basic Works Re
1: Mechanical resistance and stability
1 Characteristic load bearing capacity and displacements
2.2.1Influence factors on the load bearing capacity behaviour of the fastener
Characteristic resistance for tension/ shear/ combined tension and shear
Spacing and edge distance of the fastener
Displacement of the fastener
(serviceability limit state)
2Durability
2.2.2Resistance to environmental conditions Basic Works Re 2: Safety in case of fire
3Reaction to fire
2.2.3Fastener satisfy the res for the fire reaction class A1
4Resistance to fire
2.2.4No classification for the fastener itself
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