ACI 355.2 prescribes testing programs and evaluation requirements for post-installed mechanical anchors intended for use in concrete under the design provisions of ACI 318. Criteria are prescribed for determining whether anchors are acceptable for use in uncracked concrete only, or in cracked as well as uncracked concrete. Performance categories for anchors are established, as are the criteria for assigning anchors to each category. The anchor performance categories are used by ACI 318 to assign capacity reduction factors and other design parameters. Keywords: anchors; cracked concrete; expansion anchors; fasteners; mechanical anchors; post-installed anchors; screw anchors; undercut anchors.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 3<\/td>\n | TITLE PAGE <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | CHAPTER 1\u2014SCOPE <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | CHAPTER 2\u2014DEFINITIONS AND NOTATION 2.1\u2014Definitions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 2.2\u2014Notation <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | CHAPTER 3\u2014SIGNIFICANCE AND USE <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | CHAPTER 4\u2014GENERAL REQUIREMENTS 4.1\u2014Testing sequence <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 4.2\u2014Test samples <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | 4.3\u2014Testing by independent testing and evaluation agency and by manufacturer 4.4\u2014Changes to product <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | CHAPTER 5\u2014REQUIREMENTS FOR TEST SPECIMENS, INSTALLING ANCHORS, AND CONDUCTING TESTS 5.1\u2014Concrete for test members <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 5.2\u2014Anchor installation <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | 5.3\u2014Test methods 5.4\u2014Tests in cracked concrete <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | 5.5\u2014General requirements for anchor behavior <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | CHAPTER 6\u2014REQUIREMENTS FOR ANCHOR IDENTIFICATION 6.1\u2014Determination of critical characteristics of anchors 6.2\u2014Specification of critical characteristics of anchors 6.3\u2014Verification of conformance to drawings and specifications <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | CHAPTER 7\u2014REFERENCE TESTS 7.1\u2014Purpose 7.2\u2014Reference tension tests for single anchors without spacing and edge effects (Table 4.1a, Tests 1 through 3, or Table 4.1b, Tests 1 through 5) <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | 7.3\u2014Required calculations using results of reference tests <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | CHAPTER 8\u2014RELIABILITY TESTS 8.1\u2014Purpose 8.2\u2014Reliability tests using reduced installation effort (Table 4.1a, Test 4, and Table 4.1b, Test 6) <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | 8.3\u2014Reliability in low-strength concrete with large drill bit (Table 4.1a, Test 5, and Table 4.1b, Test 7) 8.4\u2014Reliability in high-strength concrete with small drill bit (Table 4.1a, Test 6, and Table 4.1b, Test 8) <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | 8.5\u2014Reliability under repeated load (Table 4.1a, Test 7, and Table 4.1b, Test 10 for screw anchors) <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | 8.6\u2014Reliability in cracked concrete where crack width is cycled (Table 4.1b, Test 9) <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | 8.7\u2014Reliability of screw anchors for brittle failure (Table 4.1a, Test 8, and Table 4.1b, Test 11) <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | 8.8\u2014Reliability tests of screw anchors to setting method (Table 4.1a, Tests 9, 10, and 11, or Table 4.1b, Tests 12, 13, and 14) <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | CHAPTER 9\u2014SERVICE-CONDITION TESTS 9.1\u2014Purpose 9.2\u2014Service-condition tension test with single anchor and with two edges (corner) (Table 4.1a, Test 12, and Table 4.1b, Test 15) <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | 9.3\u2014Service-condition test at minimum edge distance and minimum spacing (Table 4.1a, Test 13, and Table 4.1b, Test 16) <\/td>\n<\/tr>\n | ||||||
| 73<\/td>\n | 9.4\u2014Service-condition shear test for single anchors without spacing and edge effects (Table 4.1a, Test 14, and Table 4.1b, Test 17) 9.5\u2014Service-condition, simulated seismic tension tests (Table 4.1b, Test 18) <\/td>\n<\/tr>\n | ||||||
| 75<\/td>\n | 9.6\u2014Service condition, simulated seismic shear tests (Table 4.1b, Test 19) <\/td>\n<\/tr>\n | ||||||
| 78<\/td>\n | 9.7\u2014Torque tests (Table 4.1a, Test 15, and Table 4.1b, Test 20) \u2013 Optional <\/td>\n<\/tr>\n | ||||||
| 80<\/td>\n | CHAPTER 10\u2014ESTABLISHING ANCHOR CATEGORIES <\/td>\n<\/tr>\n | ||||||
| 81<\/td>\n | CHAPTER 11\u2014PRESENTING ANCHOR DATA 11.1\u2014Data analysis 11.2\u2014Format of data sheet 11.3\u2014General requirements 11.4\u2014Contents of evaluation report <\/td>\n<\/tr>\n | ||||||
| 82<\/td>\n | CHAPTER 12\u2014REQUIREMENTS FOR INDEPENDENT TESTING AND EVALUATION AGENCY <\/td>\n<\/tr>\n | ||||||
| 83<\/td>\n | CHAPTER 13\u2014REFERENCES Authored documents <\/td>\n<\/tr>\n | ||||||
| 84<\/td>\n | MANDATORY APPENDIXES: \nAPPENDIX A1\u2014REQUIREMENTS FOR NORMALIZATION OF RESULTS A1.1\u2014Normalization of capacities to take account of concrete and steel strengths A1.2\u2014Concrete breakout or splitting failure A1.3\u2014Pullout and pull-through failure A1.4\u2014Steel failure <\/td>\n<\/tr>\n | ||||||
| 85<\/td>\n | APPENDIX A2\u2014REQUIREMENTS FOR ESTABLISHING CHARACTERISTIC CAPACITIES A2.1\u2014Scope A2.2\u2014Procedure <\/td>\n<\/tr>\n | ||||||
| 86<\/td>\n | APPENDIX A3\u2014REQUIREMENTS FOR TEST MEMBERS A3.1\u2014Tests in uncracked concrete A3.2\u2014Tests in cracked concrete <\/td>\n<\/tr>\n | ||||||
| 87<\/td>\n | A3.3\u2014Casting and curing of test members <\/td>\n<\/tr>\n | ||||||
| 88<\/td>\n | EXAMPLE OF EVALUATION OF A WEDGE-TYPE ANCHOR IN UNCRACKED CONCRETE E1\u2014Anchor specifications <\/td>\n<\/tr>\n | ||||||
| 89<\/td>\n | E2\u2014Test results <\/td>\n<\/tr>\n | ||||||
| 93<\/td>\n | E4\u2014Establishing anchor category E5\u2014Report of anchor data <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" 355.2-19: Qualification of Post-Installed Mechanical Anchors in Concrete(ACI 355.2) and Commentary<\/b><\/p>\n |