The EAD “Cast-an anchor with internal threaded socket” covers the assessment of pre-installed anchors embedded in concrete according to EN 206 and anchored by bonding and mechanical interlock.
The cast-in anchor consists of an internal threaded socket made of metal which is anchored by a ribbed reinforcement bar (figure 1.1, a), a steel rod placed through a hole in the socket (figure 1.1, b) or by interlock activated by a deformed section of the socket (figure 1.1, c). A head may be forged to the end of the ribbed reinforcement bar located on the opposite side of the socket. The internal threaded socket may be anchored by a hexagonal bolt.
For cast-in anchors acc. fig. 1.1 b) and c) the steel rod or the deformed section of the socket and the threaded part of the socket should be designed with equivalent stiffness to avoid massive deformation of the steel rod or the socket. The socket and an optional steel rod are made of carbon steel or stainless steel.
Characteristic resistance under static and quasi-static loading 静态和准静态载荷下的阻力特性 Displacements 移位 Durability 耐久性 Reaction to fire 防火等级 Dimensions (outer diameter and length of the socket, diameter of the reinforcement bar or steel rod, length of the complete anchor etc.) 尺寸 Tensile Load (Np) or tensile strength (fuk) Yield strength (fyk or Np0.2) Core hardness and surface hardness (at specified functioning relevant points of the product)(where relevant) Fracture elongation A5
Under the CPR, harmonised technical specifications are harmonised European product standards (hENs) established by CEN/CENELEC2 or European Assessment Documents (EADs) produced by the European CPR指令认证的依据是建筑指令欧盟协调标准或欧盟评估文件（EADs）
European Organisation for Technical Approvals (EOTA) as the basis for issuing ETAs for products not covered by hENs.The harmonised technical specification for a product defines EEA-wide methods of assessing and declaring 对于没有被协调标准完全覆盖的建筑产品的认证，可以通过EOTA机构核发ETA认证证书（等同于CE认证书）。
欧盟公告NB机构&TAB机构-捷克TZUS (NB1020)介绍
TZUS是欧盟公告号机构，其欧盟公告号为1020(Notified Body 1020-NB1020)。可以根据欧盟相关规定来签发CE证书。 TZUS同时也是ETA(European Technical Approval)的认证委员之一，可以根据相关法规来签发ETA证书。
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