Pull Out lbs 1 4 1 5 ft lbs 3 8 Minimum embedment for satisfactory anchor performance is 4 1 2 bolt diameters Deeper embedments will yield higher tension and shear capacity Zinc Plated Part No Stainless Steel Box Ctn Quantity Anchor Diameter inches Anchor Length inches Internal Thread Length1A anchor bolts with Class 1A threads 2A anchor bolts with Class 2A threads A When Grade 36 is specified a weldable Grade 55 may be furnished at the supplier s option 4 2 Weldable steel for Grade 55 is provided for in Supple mentary Requirement SI 5 Ordering Information 5 1 Orders for anchor bolts should include the following information Wedge anchor DBZ Aerated concrete anchor HPD Page 304 Sleeve anchor with screw and washer HAM with bolt Page 304 Hard sleeve anchor HAM without bolt Hook and ring anchors HA 8 Page 305 Plastic Anchors Frame anchors HRD C HRD CR HRD CR2 HRD H HRD HF HRD HR HRD HR2 HRD K Page 306 311 HRD KR2 HRD P HRD PR227 10 2014 nbsp 0183 32 Anchor bolt pull out strength is the force required to pull a single bolt out of its foundation In order to calculate this number properly one must have data on factors other than the anchor bolt itself Some of these include strength of the concrete embedment depth of the anchor bolt etc of the anchors pulling out of the concrete matrix has been the most widely investigated and represents the biggest concern for structural engineering applications In the mid 1980s formulas for the prediction of load carrying capacity in the case of concrete pullout relied on plasticity based models which assumed a con

For specific bolt performance data tensile and shear loadings please see the Screwbolts page of this website or contact us The performance figures shown in the Technical Data on each of the product bolt diameter pages in concrete are supported by tests carried out to UEAtc M O A T 49 1992 by Independent Test Houses ITH This calculator will determine the variables for a Concrete Anchor subjected to Tension Pullout Force per ACI 318 02 The American Concrete Institute ACI has adopted Building Code Requirements for Structural Concrete ACI 318 02 and ACI 318R 02 as a To investigate the ultimate uplift capacity of bell shaped anchor with geotextile ties embedded in sand and to evaluate its breakout factor Fqr a series of 2 dimensional axisymmetric finite Anchor reinft strength is used to replace concrete tension shear breakout strength as per 17 4 2 9 amp 17 5 2 9 ACI 318M 14 Appendix D clause 17 4 2 9 and 17 5 2 9 5 For tie reinft only the top most 2 or 3 layers of ties 50mm from TOC and 2x75mm after are effective 6 Anchor bolt pull out testing was used to determine the maximum load a fixing can hold as well as the residual post crack toughness of a bolt embedded in a concrete block

Anchor size refers to the diameter of the machine bolt screw used to expand this anchor Once all of these factors have been determined you can find the expected holding values in the technical information below Length Pull Out lbs 1 4 required to pull an anchor bolt out in either manner To calculate the Total Pull Out Strength of the entire machine multiply the force required to pull one bolt out times the total number of bolts When calculating Pull Out Strength it is assumed that 1 A clean threaded rod or bolt with a coarse surface profile is used 2 The L bolts also greatly exceeded the minimum 248 MPa 36 ksi yield and 400 MPa 58 ksi ultimate strength requirements for ASTM A 36 steel and for the most part had slightly greater capacity than similar bolts tested in Phase 2 3 3 Anchor Prism Test Results When anchor bolts embedded in the masonry prisms were tested in tension the bolts17 5 2021 nbsp 0183 32 The Procedure Role and Applications of Anchor Pull Testing concreteinsightAdmin 5 17 2021 Anchor pull testing is usually performed with an objective to measure the performance of the anchor installation and to verify whether it is able to pull out forces or not In simpler terms it establishes the load capacity strength of fixings that 2 10 2002 nbsp 0183 32 I believe ACI has a similar approch but in Canada A23 3 defines Pr 0 3 Ag fc 0 5 where Ag is the total projected area from anchor head s fc 20 7 MPa for single bolt 12 quot embedment case Ag 12 quot 12 quot 2 or 0 37 m 2 and Pr 0 3 x 0 37 x 20 7 0 5 505 kN 113 kip for single bolt 96 quot embedment case Ag 96 quot 96 quot 2 or 23 78 m 2

determined with reference to past experimental studies 2 4 The anchor bolt was joined to the pullout loading frame through the hole made in the bearing plate Pullout loads were applied to anchor bolts at four loading rates 1 0 215 10 1 4 0 215 102 4 0 215 103 and 4 0 215 104 kN sec The loads acting on the anchors were measured by a load cell Basic loading data for a single anchor – with minimum edge distance Design resistance kN uncracked concrete 32 Mpa Anchor size M8 M10 M12 M16 M20 M24 Min edge distance cmin mm 40 45 55 65 90 120 Min Base thickness hmin mm 110 120 140 170 220 270 Tensile NRd Pull out N Rd p kN 10 1 13 6 19 7 23 6 46 0 61 3The anchor bolt edge distance l be is measured in the direction of the applied load from the center of the anchor bolt to the edge of the masonry When the projected areas of adjacent anchor bolts overlap the portion of the overlapping area is reduced by one half for calculating A pt or A pv as shown in Figure 3 Any portion of the projected area that falls within an open cell The ultimate pullout capacity of anchors in frictional soils R S Merifield and S W Sloan Abstract During the last 30 years various researchers have proposed approximate techniques to estimate the uplift ca pacity of soil anchors As the majority of past research has been experimentally based much current design practice isAbout Load Capacity Pullout Strength amp Proof Testing The only method of accurately predicting the pullout strength of any anchor at any specific site is by an on site proof test of the anchor under local conditions installed and loaded in the same manner as for the intended application Determining load capacity is an inexact science limited by

pull an anchor bolt out in either manner To calculate the Total Pull Out Strength of the entire machine multiply the force required to pull one bolt out times the total number of bolts When calculating Pull Out Strength it is assumed that 1 A clean threaded rod or bolt with a coarse surface profile is used 2 HSA stud anchor Approvals certificates or pullout whichever governing obtain the pry out capacity Ensure that you take the lower value of the shear steel capacity and pry out capacity page 316 July 2014 HSA stud anchor Single anchor min edge distance Anchor Bolt Data Anchor bolt material F1554 Grade 36 F1554 Grade 55 F1554 Grade 105 A307 Grade A A307 Grade C A36 A193 Grade B7 dia lt 2 5 A193 Grade B7 dia gt 2 5 A320 Grade L7 dia lt 2 5 A320 Grade L43 dia gt 2 5 A354 Grade BC A354 Grade BD dia lt 2 5 A354 Grade BD dia gt 2 5 A449 1 4 lt dia lt 1 A449 1 lt dia lt 1 5 A449 1 5 lt dia lt 3 Stainless Steel 304 or 8 10 2020 nbsp 0183 32 RE Capacity of J or L Type Anchor Bolts STrctPono Structural 8 Oct 20 18 44 The only difference between headed anchors and quot L quot or quot J quot anchors is in their pullout capacity My understanding is that concrete pryout breakout strength in shear breakout strength in tension and steel strength would be the same as it would be for a cast in Anchor Fastening Technical Guide 1 0 Introduction 4 Hilti Inc US 1 800 879 8000 www us hilti com I en espa 241 ol 1 800 879 5000 I Hilti Canada Corp 1 800 363 4458 I www hilti ca I Anchor Fastening Technical Guide 2011 1 1 A bout Published Load Values The Anchor Fastening Technical Guide is intended to We passionately create enthusiastic

Tags: