{"id":160910,"date":"2024-10-19T09:39:57","date_gmt":"2024-10-19T09:39:57","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/aci-408-2r-12\/"},"modified":"2024-10-25T01:58:36","modified_gmt":"2024-10-25T01:58:36","slug":"aci-408-2r-12","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/aci\/aci-408-2r-12\/","title":{"rendered":"ACI 408.2R 12"},"content":{"rendered":"

This report summarizes research on bond strength and behavior of steel reinforcing bars under cyclic loads. The report provides a background to bond problems, discusses the main variables affecting bond performance, and describes bond behavior under cyclic loads. Two general types of cyclic loads are addressed: high-cycle (fatigue) and low-cycle (earthquake and similar). The anchorage behaviors of straight bars, hooked bars, and lap splices are included. Analytical bond models are described, design recommendations are provided for both high- and low-cycle fatigue, and suggestions for further research are given. Keywords: anchorage; bar slip; bond; bond models; cyclic loads; design recommendations; development length; fatigue; hooks; earthquake loads; splices.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
3<\/td>\nCONTENTS
CONTENTS <\/td>\n<\/tr>\n
4<\/td>\nCHAPTER 1\u2014 INTRODUCTION AND SCOPE
CHAPTER 1\u2014 INTRODUCTION AND SCOPE
1.1\u2014Introduction
1.1\u2014Introduction <\/td>\n<\/tr>\n
5<\/td>\n1.2\u2014Scope
1.2\u2014Scope
CHAPTER 2\u2014 NOTATION AND DEFINITIONS
CHAPTER 2\u2014 NOTATION AND DEFINITIONS
2.1\u2014Notation
2.1\u2014Notation <\/td>\n<\/tr>\n
6<\/td>\n2.2\u2014Definitions
2.2\u2014Definitions
CHAPTER 3\u2014 BOND AND ANCHORAGE
CHAPTER 3\u2014 BOND AND ANCHORAGE
3.1\u2014Average bond stresses
3.1\u2014Average bond stresses <\/td>\n<\/tr>\n
7<\/td>\n3.2\u2014Components of bond resistance
3.2\u2014Components of bond resistance <\/td>\n<\/tr>\n
8<\/td>\n3.3\u2014Failure modes
3.3\u2014Failure modes
3.4\u2014Bond mechanisms
3.4\u2014Bond mechanisms <\/td>\n<\/tr>\n
9<\/td>\n3.5\u2014Factors affecting bond strength under cyclic loads
3.5\u2014Factors affecting bond strength under cyclic loads
3.5.1 Concrete compressive strength
3.5.1 Concrete compressive strength
3.5.2 Concrete cover
3.5.2 Concrete cover <\/td>\n<\/tr>\n
10<\/td>\n3.5.3 Bar size
3.5.3 Bar size
3.5.4 Anchorage length
3.5.4 Anchorage length
3.5.5 Deformation (transverse rib) geometry
3.5.5 Deformation (transverse rib) geometry
3.5.6 Steel yield strength
3.5.6 Steel yield strength
3.5.7 Amount and distribution of transverse steel
3.5.7 Amount and distribution of transverse steel
3.5.8 Casting position, vibration, and revibration
3.5.8 Casting position, vibration, and revibration
3.5.9 Strain (or stress) range
3.5.9 Strain (or stress) range
3.5.10 Type and rate of loading
3.5.10 Type and rate of loading
3.5.11 Temperature
3.5.11 Temperature <\/td>\n<\/tr>\n
11<\/td>\n3.5.12 Surface condition and coatings
3.5.12 Surface condition and coatings
3.5.13 Lightweight aggregate concrete
3.5.13 Lightweight aggregate concrete
3.5.14 Corrosion
3.5.14 Corrosion
3.5.15 Alkali-silica reaction
3.5.15 Alkali-silica reaction
3.5.16 Fiber-reinforced concrete
3.5.16 Fiber-reinforced concrete
3.5.17 Bond in grouted ducts used in precast structures
3.5.17 Bond in grouted ducts used in precast structures
3.6\u2014Summary
3.6\u2014Summary <\/td>\n<\/tr>\n
12<\/td>\nCHAPTER 4\u2014 BOND BEHAVIOR UNDER CYCLIC LOADS
CHAPTER 4\u2014 BOND BEHAVIOR UNDER CYCLIC LOADS
4.1\u2014High-cycle fatigue
4.1\u2014High-cycle fatigue <\/td>\n<\/tr>\n
13<\/td>\n4.2\u2014Correlation between fatigue and sustained loading
4.2\u2014Correlation between fatigue and sustained loading <\/td>\n<\/tr>\n
14<\/td>\n4.3\u2014Low-cycle loading
4.3\u2014Low-cycle loading <\/td>\n<\/tr>\n
15<\/td>\n4.4\u2014Influence of cracking on bond strength
4.4\u2014Influence of cracking on bond strength
4.5\u2014Debonding to increase shear strength at connections
4.5\u2014Debonding to increase shear strength at connections <\/td>\n<\/tr>\n
16<\/td>\nCHAPTER 5\u2014 ANCHORAGE UNDER HIGH-CYCLE FATIGUE
CHAPTER 5\u2014 ANCHORAGE UNDER HIGH-CYCLE FATIGUE
5.1\u2014Straight bar anchorages
5.1\u2014Straight bar anchorages <\/td>\n<\/tr>\n
17<\/td>\n5.2\u2014Hooked bar anchorages
5.2\u2014Hooked bar anchorages <\/td>\n<\/tr>\n
18<\/td>\n5.3\u2014Lap splices
5.3\u2014Lap splices <\/td>\n<\/tr>\n
19<\/td>\nCHAPTER 6\u2014 ANCHORAGE UNDER LOW-CYCLE LOADING
CHAPTER 6\u2014 ANCHORAGE UNDER LOW-CYCLE LOADING
6.1\u2014Straight bar anchorages
6.1\u2014Straight bar anchorages <\/td>\n<\/tr>\n
20<\/td>\n6.2\u2014Hooked bar anchorages
6.2\u2014Hooked bar anchorages <\/td>\n<\/tr>\n
22<\/td>\n6.3\u2014Lap splices
6.3\u2014Lap splices <\/td>\n<\/tr>\n
24<\/td>\nCHAPTER 7\u2014 ANALYTICAL BOND MODELS
CHAPTER 7\u2014 ANALYTICAL BOND MODELS
7.1\u2014Early models of local bond behavior
7.1\u2014Early models of local bond behavior <\/td>\n<\/tr>\n
25<\/td>\n7.2\u2014Models for local bond-slip effects
7.2\u2014Models for local bond-slip effects
7.3\u2014Contribution of bond-slip for modeling member and structural system behavior
7.3\u2014Contribution of bond-slip for modeling member and structural system behavior <\/td>\n<\/tr>\n
26<\/td>\n7.4\u2014Bond modeling used in evaluation of existing structures with short lap splices or discontinuous bottom bars through joints
7.4\u2014Bond modeling used in evaluation of existing structures with short lap splices or discontinuous bottom bars through joints
7.5\u2014Modeling of high-cycle (fatigue) loading
7.5\u2014Modeling of high-cycle (fatigue) loading
CHAPTER 8\u2014DESIGN AND ANALYSIS APPROACHES
CHAPTER 8\u2014DESIGN AND ANALYSIS APPROACHES
8.1\u2014High-cycle fatigue
8.1\u2014High-cycle fatigue <\/td>\n<\/tr>\n
27<\/td>\n8.1.1 Buildings and other structures (ACI 215R)
8.1.1 Buildings and other structures (ACI 215R)
8.1.2 Bridges (AASHTO HB-17, Helgason et al. (1976))
8.1.2 Bridges (AASHTO HB-17, Helgason et al. (1976))
8.1.3 Offshore structures (Det Norske Veritas 1977)
8.1.3 Offshore structures (Det Norske Veritas 1977)
8.2\u2014Low-cycle loading (earthquake loads)
8.2\u2014Low-cycle loading (earthquake loads)
8.2.1 ACI 318-11, Chapter 21
8.2.1 ACI 318-11, Chapter 21 <\/td>\n<\/tr>\n
28<\/td>\n8.2.2 Joint ACI-ASCE Committee 352
8.2.2 Joint ACI-ASCE Committee 352 <\/td>\n<\/tr>\n
29<\/td>\n8.2.3 Joint ACI-ASCE Committee 352
8.2.3 Joint ACI-ASCE Committee 352
8.2.4 New Zealand Standards (NZS 3101:2006)
8.2.4 New Zealand Standards (NZS 3101:2006)
8.2.5 fib Model Code
8.2.5 fib Model Code
8.2.6 BS EN 1998-1:2004 (Eurocode 8)
8.2.6 BS EN 1998-1:2004 (Eurocode 8)
8.2.7 Japanese recommendations (AIJ 1990)
8.2.7 Japanese recommendations (AIJ 1990)
8.2.8 AASHTO HB-17
8.2.8 AASHTO HB-17
8.2.8.1 Columns
8.2.8.1 Columns <\/td>\n<\/tr>\n
30<\/td>\n8.2.8.2 Column connections with vertical extension of the column into adjoining member)
8.2.8.2 Column connections with vertical extension of the column into adjoining member)
8.2.9 FEMA 310
8.2.9 FEMA 310
8.2.10 FEMA 356
8.2.10 FEMA 356
8.2.11 Other recommendations
8.2.11 Other recommendations <\/td>\n<\/tr>\n
31<\/td>\n8.3\u2014Recommendations
8.3\u2014Recommendations
8.3.1 High-cycle fatigue
8.3.1 High-cycle fatigue
8.3.2 Low-cycle fatigue
8.3.2 Low-cycle fatigue
CHAPTER 9\u2014 CONCLUSIONS AND RECOMMENDATIONS
CHAPTER 9\u2014 CONCLUSIONS AND RECOMMENDATIONS
9.1\u2014Monotonic loading
9.1\u2014Monotonic loading
9.2\u2014Cyclic loading
9.2\u2014Cyclic loading
9.2.1 High-cycle fatigue
9.2.1 High-cycle fatigue <\/td>\n<\/tr>\n
32<\/td>\n9.2.2 Low-cycle loading
9.2.2 Low-cycle loading
9.3\u2014Recommendations for future research
9.3\u2014Recommendations for future research
CHAPTER 10\u2014 REFERENCES
CHAPTER 10\u2014 REFERENCES <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

408.2R-12 Report on Bond of Steel Reinforcing Bars Under Cyclic Loads<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ACI<\/b><\/a><\/td>\n2012<\/td>\n39<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":160913,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2650],"product_tag":[],"class_list":{"0":"post-160910","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-aci","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/160910","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/160913"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=160910"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=160910"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=160910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}