TruBolt A4 316 SS. Cracked Concrete - Mechanical Anchoring 47.1 CRACKED CONCRETE - STUD ANCHOR 47.1 GENERAL INFORMATION

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1 47.1 CRACKED CONCRETE - STUD ANCHOR 47.1 GENERAL INFORMATION PERFORMANCE RELATED MATERIAL INSTALLATION RELATED Product A Heavy duty, torque controlled expansion anchor, made of stainless steel for use in Cracked and Non-Cracked concrete. Benefits, Advantages and Features European Technical Approval (option1) ETA-04/0010 (FIX Z A4): Highest level of European approval for mechanical expansion anchors Approved for all directions (floor, wall, overhead) Maximum Tensile & Shear load in cracked concrete A4 (AISI 316) Stainless Steel Anchor diameters M8 to M16 Suitable for structural loads: True to size through fixture anchor A4-80 Stainless Steel Hexagonal Nut Improved security: Torque induced pull down closes gaps and induces preload. Resistant to cyclic loading: Heavy duty sleeve with pull-down of fixture Anti rotation expansion sleeve Fast installation: Anchor diameter equals hole diameter Shallow embedment depths Through fixing eliminates marking out and repositioning of fixtures. ETA Principal Applications Anchoring into cracked & non cracked concrete Structural Steel columns & beams Road barrier hold down Bridge refurbishment Road & Rail tunnel construction Wall Plates Safety barriers Stadium seating Pallet racking Shallow embedment depths from 50mm m Long working life L e d b Fire rated: Refer Fire rated mechanical anchor section for details. Installation Drill or core a hole to the recommended diameter (same as the ) 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. Insert the anchor through the fixture and drive with a hammer until the washer contacts the fixture. 3. Tighten the nut with a torque wrench to the specified assembly torque RAMSET

2 CRACKED CONCRETE - STUD ANCHOR Installation and Working Load Limit 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 Optimum dimensions* Anchor spacing, a c Edge distance, e c 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 *For shear loads acting towards an edge or where optimum dimensions are not achievable, please use the simplified strength limit state design process to verfiy capacity DESCRIPTION AND PART NUMBERS Anchor size, d b Drilled hole diameter, d h M8 8 M10 10 M12 12 M16 16 Effective Length, L e ETA Designation Number Part Number 316 A4 SS 40 M8/5 T08055SSA 55 M8/20-7 T08070SSA 75 M8/40-27 T08090SSA 115 M8/80-67 T08130SSA 47 M10/5 T10065SSA 57 M10/15 T10075SSA 78 M10/35-20 T10095SSA 103 M10/60-45 T10120SSA 55 M12/5 T12080SSA 76 M12/25-6 T12100SSA 91 M12/40-21 T12115SSA 116 M12/65-46 T12140SSA 94 M16/30-8 T16125SSA 119 M16/55-33 T16150SSA 139 M16/75-53 T16170SSA h = L e - t t = total thickness of material(s) being fixed 47.3 ENGINEERING PROPERTIES - Stainless Steel Anchor size, d b Stress area threaded section, A s (mm 2 ) Minimum diameter reduced section, d s Threaded section Yield strength, f y (MPa) UTS, f u (MPa) Reduced section Yield strength, f y (MPa) UTS, f u (MPa) Section modulus Z (mm 2 ) 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 Notes: Tension Notes: - - Shear Limited by steel capacity resistance - - Tension limited by by concrete pull pull through through resistance - - No No edge or spacing effects - - f' f' c c = 20 MPa M16 M12 M10 M Design shear action effect, V* (kn) Table 1b Absolute minimum edge distance and anchor spacing values, e m and a m Min. Anchor spacing - a m Min. Edge Distance - e m Step 1c Calculate anchor effective depth, h Refer to Description and Part Numbers table on page 292. h = L e - t t = total thickness of material(s) being fixed 1 Anchor size determined, absolute minima compliance achieved, effective depth (h) calculated RAMSET

4 e STEP 2 NOTE: For capacity in Non-cracked concrete, refer to pages 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 Anchor size, d b Drill hole dia, d h M M10 10 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 2c-1 - For Minimum Effective Depth Edge distance, e M12 12 M16 16 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. a N 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 of X na, please use equation shown above. 2c-2 - For Maximum Effective Depth Edge distance, e Table 2d - Cracked concrete anchor spacing effect, tension, X na 2d-1 - For Minimum Effective Depth Anchor spacing, a RAMSET

5 a N 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 of X na, please use equation shown above. 2 STEP 3 2d-2 - For Maximum Effective Depth Anchor spacing, a Design cracked concrete cone resistance, N Rd,c N Rd,c = N 0 Rd,c * X nc * X ne * X na Verify cracked concrete tensile resistance - per anchor Table 3a - Cracked Concrete steel resistance, tension, N Rd,s = N Rk,s / Ms (kn), Ms = 1.5 for M8 to M12 and Ms = 2.1 for M16 Stainless Steel a 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 ** 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 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. Anchor spacing - a m Min. Edge Distance - e m 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 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 X ve = e/e m * e/e m a 1 a b a >1,5.e X ve = 3*e+a * e/e m 6*e m a 2 a 3 a n-1 For 2 anchors fastening X ve e/e m a/e m For 3 anchors fastening and more X ve V b a >1,5.e X ve = 3*e + a 1 +a 2 +a 3 + +a n-1 * e/e m 3*n*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 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 dustance, 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 Verify cracked concrete shear resistance - per anchor Table 5a - Cracked concrete steel shear resistance, V Rd,s = V Rk,s / Ms (kn), Ms = 1.5 for M8 to M12 and Ms = 1.8 for M16 A4 316 Stainless Steel 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 STEP 6 6 Combined loading and specification Check N*/N Rd + V*/V Rd 1.2, if not satisfied return to step 1 Specify Ramset FIX Z A4 Anchor (Anchor Size) ((Part Number)). Maximum fixed thickness to be (t) mm. Tension - Sustained Loading - Cracked Concrete Concrete Strength f c = 20 MPa Example Ramset FIX Z A4 Anchor M12 (054650) Maximum fixed thickness to be 6 mm. To be installed in accordance with Ramset Technical Data Sheet. Anchor Size (d b ) M8 M10 M12 M16 Effective Depth, h Tension load in (kn) Cracked Concrete N (short term) Displacement N (long term) Concrete Strength f c = 50 MPa Anchor Size (d b ) M8 M10 M12 M16 Effective Depth, h Tension load in (kn) Cracked Concrete N (short term) Displacement N (long term) Shear - Sustained Loading - Cracked Concrete Concrete Strength f c = 20 MPa to 50 MPa Anchor Size (d b ) M8 M10 M12 M16 Effective Depth, h Shear load in Cracked Concrete (kn) N (short term) (+0.7) (+0.7) Displacement N (long term) 4.2 (+0.7) 4.2 (+0.7) 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