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 靜態和准靜態載荷下的阻力特性 Displacements 移位 Durability 耐久性 Reaction to fire 防火等級 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指令認證的依據是建築指令歐盟協調標準或歐盟評估檔（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 對於沒有被協調標準完全覆蓋的建築產品的認證，可以通過EOTA機構核發ETA認證證書（等同於CE認證書）。
歐盟公告NB機構&TAB機構-捷克TZUS (NB1020)介紹
TZUS是歐盟公告號機構，其歐盟公告號為1020(Notified Body 1020-NB1020)。可以根據歐盟相關規定來簽發CE證書。 TZUS同時也是ETA(European Technical Approval)的認證委員之一，可以根據相關法規來簽發ETA證書。
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