SpaTec Plus. Cracked Concrete - Mechanical Anchoring 46.1 CRACKED CONCRETE - SAFETY ANCHORS 46.1 GENERAL INFORMATION

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1 46.1 CRACKED CONCRETE - SAFETY ANCHORS 46.1 GENERAL INFORMATION Product A high security, high performance, through fixing, torque controlled expansion anchor which has approval for use in cracked and noncracked concrete. Benefits, Advantages and Features European Technical Approval (option1) ETA-10/0276: Tested for Category 1 seismic performance in accordance with ETAG001 Annex E ( Category 2 pending ) CISMA Report Anchors exposed to seismic actions NTC022 Highest level of European approval for mechanical expansion anchors Approved for all directions (floor, wall, overhead) Shallow embedment depths Highest performance in cracked concrete Zinc Plated to 5μm Anchor diameters from M6 to M20 Suitable for structural loads: Safety critical loads High tensile capacity of Grade 8.8 Steel Bolt. Heavy duty, heat treated washer. Heavy duty, thick expansion sleeve that provides secure grip to concrete. Improved security: Large expansion reserve that ensures retention in concrete if overloaded. Torque induced pull down closes gaps and induces preload. Resistant to cyclic loading: Heavy duty sleeve with integrated pull-down section works to retain 65% of initial preload. Fast installation: Hex Nut & Hex Bolt versions available Countersunk heads available. Through fixing eliminates marking out and repositioning of fixtures. Fire rated: Refer Fire rated mechanical anchor section. Installation PERFORMANCE RELATED MATERIAL INSTALLATION RELATED Hex Head Hex Nut - Threaded Rod C/Sunk Head ETA Principal ip Applications Anchoring into cracked & non cracked concrete e Safety critical loads Steel columns & walkways Road barrier hold down Bridge refurbishment Road & Rail tunnel construction Wall Plates Safety Rails Intended working life of the anchor of 50 years L e L e L e d b d b d b Drill or core a hole to the recommended diameter and depth using the fixture as a template. Clean the hole thoroughly with a hole cleaning brush. Remove the debris with a hand pump, compressed air, or vacuum. 2. After ensuring that the anchor is assembled correctly, insert the anchor through the fixture and drive with a hammer until the washer contacts the fixture. 3. Tighten the bolt with a torque wrench to the specified assembly torque RAMSET

2 CRACKED CONCRETE - SAFETY ANCHORS Installation and performance details Anchor size, d b Drilled hole diameter, d h Fixture hole diameter, d f Anchor effective depth, h Depth of drill hole, h 1 Tightening torque, T r (Nm) Concrete substrate thickness, b m Reduced Characteristic Capacity Cracked Concrete Tension, N 0 Rd,c (kn) ** Concrete Compressive Strength, f' c 20 MPa 30 MPa 40 MPa M M M M M M DESCRIPTION AND PART NUMBERS Anchor size, d b Drilled hole diameter, d h M6 10 M8 12 M10 15 M12 18 M16 24 M20 28 * Lead times apply Effective Length, L e Fixture thickness, t ETA Designation Number Zinc (Hex Hd) Part Number Zinc (C/Sunk Hd) Zinc (Hex Nut -Thr d Rod) 55 5 V6-10/ * V6-10/ * E6-10/ * V8-12/ * TF8-12/ * E8-12/ * V10-15/20 SP TF10-15/27 - SP10105F E10-15/ * V12-18/10 SP V12-18/25 SP E12-18/ * V16-24/25 SP E16-24/ * E16-24/ * V20-28/25 SP E20-28/ * E20-28/ * 46.3 ENGINEERING PROPERTIES - Carbon Steel Anchor size, d b Shank diameter, d s Bolt stress area, A s (mm2) Bolt yield strength, f y (MPa) Bolt UTS, f u (MPa) Spacer area, A s (mm2) Spacer yield strength, f y (MPa) Spacer UTS, f u (MPa) Section modulus Z (mm 2 ) M M M M M M RAMSET

3 STEP 1 Design tensile action effect, N* (kn) Select anchor to be evaluated Table 1a - Indicative combined loading - interaction diagram Tension Notes: Notes: - Shear ~ Shear Limited limited by Hex by Grade Head 5.8 or C/sunk steel capacity. Head steel ~ Tension resistance limited by concrete capacity - Tension using limited nominal by depths. concrete pull through or concrete ~ No edge cone or spacing resistance effects. - No edge ~ f' c = 32 or spacing MPa effects M20 M16 M12 M10 M8 0 M Design shear action effect, V* (kn) Table 1b Absolute minimum edge distance and anchor spacing values, e m and a m Effective depth, h Min. Anchor spacing - a m For - e m Min. Edge Distance - e m For - a m Step 1c Calculate anchor effective depth, h Refer to Description and Part Numbers table on page 284. Effective depth, h h = L e - t t = total thickness of material(s) being fixed 1 Anchor size determined, absolute minimum compliance achieved, effective depth (h) calculated RAMSET

4 STEP 2 e X ne = *(e/h) Where e m e e c e c = 1.5*h Note: Tabled values are based on the nominal effective depth, h shown in the installation details. For other values of X ne, please use equation shown above. N N Verify cracked concrete cone tensile resistance - per anchor Table 2a - Cracked concrete cone resistance, tension, N 0 Rd,c = N Rk,c / Mc (kn) Mc = 1.5, f' c = 20 MPa Drill hole dia, d h Effective depth, h NOTE: For capacity in Non-cracked concrete, refer to pages Table 2b - Cracked concrete compressive strength effect, tension, X nc f' c (MPa) X nc Table 2c - Cracked concrete Edge distance effect, tension, X ne Edge distance, e a X na = a/(6*h) Where a m a a c a c = 3*h Note: Tabled values are based on the nominal effective depth, h shown in the installation details. For other values X na, please use equation shown above. Table 2d - Cracked concrete anchor spacing effect, tension, X na Anchor spacing, a Design cracked concrete cone resistance, N Rd,c N Rd,c = N 0 Rd,c * X nc * X ne * X na RAMSET

5 STEP 3 3a Verify cracked concrete tensile resistance tension - per anchor Table 3a - Cracked Concrete steel resistance, tension, N Rd,s = N Rk,s / Ms (kn), Ms = 1.5 Carbon Steel Table 3b - Cracked concrete Pull-through resistance**, N 0 Rd,p = N Rk,p / Mp (kn) Mp = 1.5, f' c = 20 MPa Drill hole dia, d h Effective depth, h * 100 -* 125 -* * Not decisive failure mode for cracked concrete. For seismic N 0 = 17.1kN for M12 and Rd,p N0 = 24.1kN for M16 Rd,p ** Cracked concrete Pull-through resistance is not influenced by reduced anchor spacing or edge distance. Design cracked concrete pull-through resistance, N Rd,p N Rd,p = N 0 Rd,p * X nc 3b Design cracked concrete tensile resistance, N Rd N Rd = minimum of N Rd,c, N Rd,p, N Rd,s Check N*/N Rd 1, if not satisfied return to step 1 Tensile performance conversion table Performance Required Cracked Concrete/ Tension Zone Seismic Notation N Rd,c N Rd,c,sis Concrete Tensile Performance Concrete Tension Capacity N Rd,c x 1.00 N Rd,c x 0.75* Pull-through Tensile Performance Notation N Rd,p N Rd,p,sis Pull-through Tension Capacity N Rd,p x 1.00 N Rd,p x 0.85 Steel Tensile Performance Notation N Rd,s N Rd,s,sis Carbon Steel Tension Capacity N Rd,s x 1.00 N Rd,s x 1.00** *NOTE: For M20 only N Rd,c,sis = N Rd,c, x 0.81 **NOTE: For M20 only N Rd,s,sis = N Rd,s, x 0.75 Note 1: Above table is only for sizes M10,M12,M16 and M20. Note 2: Single anchor design as follows N Rd,c,sis = N Rd,c x 0.85 (for M10,M12 & M16) N Rd,c,sis = N Rd,c x 0.81 (for M20 only) N Rd,p,sis = N Rd,p x 1.00 Design seismic cracked tensile resistance, N Rd,sis N Rd,sis = min. of N Rd,c,sis, N Rd,s,sis & N Rd,p,sis Check N*/N Rd,sis 1 If not satisfied return to step RAMSET

6 STEP 4 Load direction effect, conc. edge shear, X vd Verify cracked concrete edge shear resistance - per anchor Table 4a - Cracked concrete edge resistance, shear, V 0 Rd,c = V Rk,c / Mc (kn) Mc = 1.5, f c = 20 MPa min. edge distance, e m min. anchor spacing, a m Effective depth, h NOTE: For capacity in Non-cracked concrete, refer to pages Table 4b - Cracked concrete compressive strength effect, shear, X vc f c (MPa) X vc Table 4c - Cracked concrete load direction effect, concrete edge shear, X vd Angle, X vd V b a >1,5. e X ve = e/e m * e/e m Table 4d - Cracked concrete anchor spacing and edge distance effect, concrete edge shear, X ve For single anchor fastening X ve e/e m X ve V a b a >1,5.e X ve = 3*e+a * e/e m 6*e m For 2 anchors fastening X ve e/e m a/e m a 1 a 2 a 3 For 3 anchors fastening and more X ve a n-1 V b a >1,5.e X ve = 3*e + a 1 +a 2 +a 3 + +a n-1 3*n*e m * e/e m RAMSET

7 e 1 Concrete edges Shear Force e 2 ANCHOR AT A CORNER Failure wedge Table 4e - Cracked concrete Pryout failure, V 0 Rd,cp = V Rk,cp / Mpr (kn) Mpr = 1.5, f c = 20 Mpa Effective depth, h Table 4f Anchor at a corner effect, concrete edge shear, X vs Note: For e 1 /e 2 > 1.25, X vs = 1.0 Edge distance, e Edge distance, e a Design cracked concrete edge shear resistance, V Rd,c V Rd,c = V 0 Rd,c * X vc * X vd * X ve * X vs 4b Design cracked concrete Pryout failure, V Rd,cp V Rd,cp = V 0 Rd,cp * X vc * X vd * X ne *X na STEP 5 5 Verify cracked concrete shear resistance - per anchor Table 5a - Cracked concrete steel shear resistance, V Rd,s = V Rk,s / Ms (kn), Ms = 1.25 Carbon Steel - Hex Head and C/Sunk Head Carbon Steel - Hex Nut and Gr 8.8 Threaded Rod Design cracked concrete shear resistance, V Rd V Rd = minimum of V Rd,c, V Rd,cp, V Rd,s Check V*/V Rd 1, if not satisfied return to step RAMSET

8 Shear performance conversion table Performance Required Cracked Concrete/Tension Zone Seismic STEP 6 6 Concrete Shear Performance Notation Concrete Shear Capacity V Rd,c V Rd,c x 1.00 V Rd,c,sis V Rd,c x Vc # # For M10, M12 & M16 - Vc = 0.85 (single anchor Vc = 1.00) and for M20 - Vc = 0.32 * For M10, M12 & M16 - Cp = 0.75 (single anchor Cp = 0.85) and for M20 - Cp = 0.81 Design seismic cracked shear resistance, V Rd,sis = min. of V Rd,c,sis, V Rd,cp,sis & V Rd,s,sis Combined loading and specification Check N*/N Rd + V*/V Rd 1.2, if not satisfied return to step 1 Tension - Sustained Loading - Cracked Concrete Concrete Strength f c = 20 MPa Anchor Size (d b) M6 M8 M10 M12 M16 M20 Tension load in Cracked Concrete (kn) Displacement N0 (short term) N (long term) Concrete Strength f c = 50 MPa Anchor Size (d b) M6 M8 M10 M12 M16 M20 Tension load in Cracked Concrete (kn) Displacement N0 (short term) N (long term) Shear - Sustained Loading - Cracked Concrete Hex Head and C/sunk Head in Concrete Strength f c = 20 MPa to 50 MPa Anchor Size (d b) M6 M8 M10 M12 M16 M20 Shear load in Cracked Concrete (kn) Displacement N0 (short term) N (long term) Hex Nut and Gr. 8.8 Threaded Rod in Concrete Strength f c = 20 MPa to 50 MPa Anchor Size (d b) M6 M8 M10 M12 M16 M20 Shear load in Cracked Concrete (kn) Displacement Specify Ramset Anchor, (Anchor Size) (Part Number) Maximum fixed thickness to be (t) mm. N0 (short term) N (long term) Pryout Failure Performance Notation Pryout Failure Shear Capacity V Rd,cp V Rd,cp x 1.00 V Rd,cp,sis V Rd,cp x Cp * Ramset Anchor, M12 (SP12120). Maximum fixed thickness to be 8 mm. To be installed in accordance with Ramset Technical Data Sheet Steel Shear Performance Notation Carbon Steel Tension Capacity V Rd,s V Rd,s x 1.00 V Rd,s,sis V Rd,s x V,sis ** Anchor size, d b M10 M12 M16 M20 **Hex Head - V,sis **Hex Nut & Thr'd Rod - V,sis Check V*/V Rd,sis 1.0 For Seismic SpaTec only N*/N Rd,sis + V*/V Rd,sis 1.0 Example Note: Displacement the tables above show the deformation to be expected from the anchor itself whilst the bracketed value indicates the additional movement between the anchor body and the hole in the fixture RAMSET