WERCS AnkaScrew. Mechanical Anchoring Principal Applications SCREW IN ANCHORS 30.1 GENERAL INFORMATION. Product

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1 30.1 SCREW IN ANCHORS 30.1 GENERAL INFORMATION PERFORMANCE RELATED MATERIAL INSTALLATION RELATED MGAL Product The Anchor is a medium duty, rotation setting thread forming anchor. Benefits, Advantages and Features Fast and easy to install: Simply screws into hole. Fast and easy to remove: Screws out leaving an empty hole with no protruding metal parts to grind off. Close to edge and for close anchor spacing: Does not expand and burst concrete. Installation Principal Applications Pallet racking Temporary safety barriers Conveyors Pipe brackets Gate hinges into brickwork Temporary hand rails Bottom plates Drill hole to correct diameter and depth. Clean thoroughly with brush. Remove debris by way of vacuum or hand pump, compressed air etc. 2. Using a socket wrench, screw the into the hole using slight pressure until the self tapping action starts. 3. Tighten the until flush with fixture. If resistance is experienced when tightening, unscrew anchor one turn and re-tighten. Ensure not to over tighten RAMSET

2 SCREW IN ANCHORS Installation and performance details Installation details Optimum dimensions* Reduced Characteristics Capacity Anchor Shear Drilled hole Fixture hole Anchor Tightening Edge Anchor Tension (concrete), ØN uc (kn)** size, d b (concrete) diameter, d h diameter, d f effective torque, distance, spacing, a c (mm) ØV (mm) (mm) depth, h (mm) T r (Nm) e c (mm) (mm) uc (kn)*** Concrete compressive strength, f c f c > 20 MPa 20 MPa 25 MPa 32 MPa # # # # * Note: For shear loads acting towards an edge or where these optimum dimensions are not achievable, please use the simplified strength limit state design process to verify capacity. **Note: Reduced characteristic ultimate concrete tensile capacity = ØN uc where Ø = 0.60 and N uc = Characteristic ultimate concrete tensile capacity. For conversion to Working Load Limit MULTIPLY ØN uc x 0.55 *** Note: Values are for shear load direction away from concrete edge - Reduce characteristic ultimate concrete edge shear capacity = ØV uc where Ø = 0.6 and V uc = Charecteristic ultimate concrete edge shear capacity. # Note: Values for shear limited by steel - Reduced characteristic ultimate steel shear capacity = ØV us where Ø = 0.80 and V us = Characteristic ultimate steel shear capacity DESCRIPTION AND PART NUMBERS Anchor Effective length, Le Part No. size, db (mm) Zn Hex Head Gal Hex Head 5 28 AS AS06050W100 AS06050WGM AS06075W100 AS06075WGM AS06100W100 AS06100WGM AS08060W100 AS08060WGM AS08075W100 AS08075WGM AS08100W100 AS08100WGM AS10060W50 AS10060WGM AS10075W50 AS10075WGM50 94 AS10100W50 AS10100WGM50 69 AS12075W50 AS12075WGM AS12100W50 AS12100WGM AS12150W20 AS12150WGM AS AS AS Effective depth, h (mm) h = L e - t, t = total thickness of material(s) being fixed Substrate thickness, bm (mm) b m = greater of: 1.25 x h, h + (3 x d h ) Drilled hole depth, h 1 (mm) h 1 = h + d h h = Effective depth 30.3 ENGINEERING PROPERTIES Anchor size, d b (mm) Stress area, A s (mm 2 ) Yield strength, f y (MPa) UTS, f u (MPa) RAMSET

3 STEP 1 50 Select anchor to be evaluated Table 1a Indicative combined loading interaction diagram Design tensile action effect, N* (kn) Notes: ~ Shear limited by steel capacity at h = 7.5 d h ~ Tension limited by the lesser of carbon steel capacity and concrete capacity at h = 7.5 d h ~ No edge or spacing effects. ~ f' c = 32 MPa Design shear action effect, V* (kn) Table 1b Absolute minimum edge distance and anchor spacing values, e m and a m (mm) Anchor Size, d b (mm) e m, a m Step 1c Calculate anchor effective depth, h (mm) Refer to Description and Part Numbers table on page 212. Effective depth, h (mm) 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 STEP 2 Verify concrete tensile capacity - per anchor Table 2a Reduced characteristic ultimate concrete tensile capacity, ØN uc (kn), Ø c = 0.6, f c = 32 MPa Drilled Hole Dia, d h (mm) Effective Depth, h (mm) Table 2b Concrete compressive strength effect, tension, X nc f' c (MPa) X nc - Anchor size d b = X nc - Anchor size d b = 16 only Table 2c Edge distance effect, tension, X ne Edge Distance e, (mm) Table 2d Anchor spacing effect, end of a row, tension, X nae Note: For single anchor designs, X nae = 1.0 Anchor Spacing a, (mm) RAMSET

5 2 Table 2e Anchor spacing effect, internal to a row, tension, X nai Note: For single anchor designs, X nai = 1.0 Anchor Spacing a, (mm) Design reduced ultimate concrete tensile capacity, ØN urc ØN urc = ØN uc * X nc * X ne * ( X nae or X nai ) STEP 3 3 Verify anchor tensile capacity - per anchor Table 3a Reduced characteristic ultimate steel tensile capacity, ØN us (kn), Ø n = 0.8 Anchor size, d b (mm) Heat Treated Carbon Steel Step 3b Reduced characteristic ultimate bolt steel tensile capacity, ØN tf (kn) Not appropriate for this product. Design reduced ultimate tensile capacity, ØN ur ØN ur = minimum of ØN urc, ØN us Check N* / ØN ur 1, if not satisfied return to step 1 Tensile performance conversion table Performance Required Concrete Tensile Performance Notation Concrete Tension Capacity NOTE: Design Tensile Capacity is the minimum of Concrete Tension and Steel Tension Capacities Notation Steel Tensile Performance Carbon Steel Tension Capacity Strength Limit State ØN urc MULTIPLY ØN urc x 1.00 ØN us MULTIPLY ØN us x 1.00 Working Load Limit N ac MULTIPLY ØN urc x 0.55 N as MULTIPLY ØN us x 0.56 Cyclic Loading N yc MULITPLY ØN urc x 0.55 N ys MULITPLY ØN us x 0.56 Fire Resistance N Rk,c,fi,t Refer to pages N Rk,s,fi,t Refer to pages Cracked Concrete/Tension Zone N 0 Rd,p Refer to pages N Rd,s Refer to pages Seismic N 0 Rd,p,sis Refer to pages N Rd,s,sis Refer to pages RAMSET

6 STEP 4 Verify concrete shear capacity - per anchor Table 4a Reduced characteristic ultimate concrete edge shear capacity, ØV uc (kn), Ø q = 0.6, f c = 32 MPa Edge Distance e, (mm) Note: Effective depth, h must be 3.5 x Anchor size, d h for anchor to achieve tabled shear capacities. V* Table 4b Concrete compressive strength effect, concrete edge shear, X vc f c (MPa) X vc Table 4c Load direction effect, concrete edge shear, X vd Angle, X vd Load direction effect, conc. edge shear, X vd Table 4d Anchor spacing effect, concrete edge shear, X va Note: For single anchor designs, X va = 1.0 Edge distance, e (mm) Anchor spacing, a (mm) RAMSET

7 e 1 Concrete edges Shear Force e 2 ANCHOR AT A CORNER Failure wedge Table 4e Multiple anchors effect, concrete edge shear, X vn Note: For single anchor designs, X vn = 1.0 Anchor spacing / Edge distance, a / e Number of anchors, n 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 2 (mm) Edge dustance, e 1 (mm) Design reduced ultimate concrete edge shear capacity, ØV urc ØV urc = ØV uc * X vc * X vd * X va * X vn * X vs STEP 5 Verify anchor shear capacity - per anchor Table 5a Reduced characteristic ultimate steel shear capacity, ØV us (kn), Ø v = 0.8 Anchor size, d b (mm) h 5 x d h h 6 x d h h 7 x d h h 7.5 x d h Step 5b Reduced characteristic ultimate bolt steel shear capacity, ØV sf (kn) Not appropriate for this product RAMSET

8 5 Design reduced ultimate shear capacity, ØV ur ØV ur = minimum of ØV urc, ØV us Check V* / ØV ur 1, if not satisfied return to step 1 Shear performance conversion table Performance Required Concrete Shear Performance Notation Concrete Shear Capacity Notation Steel Shear Performance Carbon Steel Shear Capacity Strength Limit State ØV uc MULTIPLY ØV uc x 1.00 ØV us MULTIPLY ØV us x 1.00 Working Load Limit V ac MULTIPLY ØV uc x 0.55 V as MULTIPLY ØV us x 0.50 Cyclic Loading V yc MULITPLY ØV uc x 0.55 V ys MULITPLY ØV us x 0.50 Fire Resistance V Rk,c,fi,t Refer to pages V Rk,s,fi,t Refer to pages Cracked Concrete/Tension Zone V 0 Rd,c Refer to pages V 0 Rd,s Refer to pages Seismic V 0 Rd,c,sis Refer to pages V 0 Rd,s,sis Refer to pages NOTE: Design Shear Capacity is the minimum of Concrete Shear and Steel Shear Capacities STEP 6 6 Combined loading and specification Check N*/ØN ur + V*/ØV ur 1.2, if not satisfied return to step 1 Specify Ramset Anchor, (Anchor Size) ((Part Number)). Maximum fixed thickness to be (t) mm. Example Ramset Anchor, 12 mm (AS12100W50). Maximum fixed thickness to be 40 mm. To be installed in accordance with Ramset Technical Data Sheet RAMSET