【正文】 system is prised of the following ponents: ? Adhesive anchor。 ? Accessories for cleaning the drilled hole including brushes, air nozzles, and other items needed to plete the cleaning process。 The performance grade of anchor made of stainless steel shall be defined by stkf and ykf (see Table ). Table The material performance of stainless steel (austenitic A1, A2, A3) performance grade diameter of thread rod (mm) Characteristic tension strength stkf (MPa) Characteristic yield strength stkf (MPa) Extension ratio 5? 50 39? 500 210 70 24? 700 450 80 24? 800 600 Note: the extension ratio ? is achieved from criteria The rebar and threaded rod of bonded anchors should be HRB 400 or HRB 335 – 16 – steel ribbed rebar and Q235 or Q345 steel threaded rod. The performance of ribbed rebar shall ply with Code for Design of Concrete structures— GB50010. Elastic modulus of anchors: Es=?105Mpa. Adhesive material of adhesive anchoring systems The anchorage performance of the adhesive material of adhesive anchoring systems shall be determined by special tests. Any extra filler and /or additives are forbidden to mix with an authorized bonding material on site except the mitted dose filler and /or additives described in Manufacturer’s instruction. Each type of adhesive material, including capsule package, injection cartridge and bulk with mechanical proportioning on site, should be used according to its performance and conditions on site. The performance of epoxy bonding material should ply with the requirement in Table The performance of adhesive with ponent of epoxy No. Performance Testing method Mechanical performance Viscosity strength (25℃)=4500～ 75000 Normal cure is available under the installation temperature 5℃～ 40℃, and the curing time can viscosity strength test method GB279481 Thread rod Thread rod Thread rod Component 1 Component 2 b) packed injection c) Bulk mixed on site a) capsule adhesive Fig. the types of adhesive – 17 – be changed by changing the ponent proportion. Strength and flexibility of bonding material Characteristic pression strength fbc,k≥60N/mm2 Characteristic tension strength fbt,k≥18 N/mm2 Elastic modulus E≥103 N/mm2 Ultimate deformation εu ≥ Compression Test method for plastic material GB104179 Tension Test method for plastic material GB104079 Steelsteel bonding strength Characteristic shear strength fbv,k≥14 N/mm2 Characteristic tension strength fbt,k≥20 N/mm2 Characteristic slit strength fbp,k≥20 kN/m Test method for shear strength of bonding material under tensile load GB712486 Test method for tension strength of bonding material GB632986 Test method for slit strength of bonding material bonded metal to metal HB5166 Steelconcrete bonding strength The bonding failure should occur in concrete instead of in bonding material Two steel plate(50505) with a steel rod respectively, axes symmetrically bonded on the bigger surface of a C50 concrete cube (707050). Tested under tension load after the curing time. Temperature influence on characteristic resistance fbv,k≥14MPa under transient temperature at the surface of the concrete within the range 45℃～ 80℃ and steady temperature within the range 35℃～ 60℃. GB 712486 Freeze/thaw influence on characteristic resistance fbv,k≥14MPa under 50 cycles within the temperature range 25℃～ 25℃. GB 712486 durability fbv,k≥14MPa, Lab aging test: ≥3000h. GB 712486, color and colorless paint — lab weathered aging and radioactive exposure — tritium arc radiation – 18 – 4 General design principles Identification and application principal Types of anchor can be divided into expansion, undercut, adhesive, rebar and other types of fasteners. Besides validation of the performance of anchoring systems themselves, base material, the load on anchors, the type pf fixtures, requirements for antiearthquake and other relevant influence factors shall be considered when selecting an anchoring system. Expansion anchor, undercut anchor may be used to the connection of nonstructural elements, or the structural elements under tension, shear load (C?10 hef) or bined of tension and shear. The limitation of the anchor application shall ply with the specification of clause to clause . Note: nonstructural elements include nonstructural elements of structures (outer wall, partition wall, curtain wall, ceiling, ad board, cabi frame) and the frame/bracket of equipments on the buildings (elevator, lightings and electric power, tele equipments, pipe system, heating and aircondition system, fire and smoke alarm system) etc.. Expansion anchor and undercut anchor can’t be used to connect the structural elements or nonstructural elements of lifeline structures under tension load, shear load perpendicular to edge (C10 hef), bined tension and shear loads. Adhesive anchoring systems or rebar can be applied on the structural elements and nonstructural elements under tension load, shear load perpendicular to edge, bined tension and shear loads while earthquake design level below seismic fortification intensity = 9 (see Fig. ). Design safety and concept The design of anchorage in the ultimate limit state with partial safety factors, basing on data obtained from test and experience in construction, is defined to be design method of this standard. The intending design period of anchorage should be concord with the design period of connected structure. Anchorage is divided into two safe grades according to the severity degree of the anchorage failures. The safety grade in anchorage design should follow Table , a