{"id":160915,"date":"2024-10-19T09:39:58","date_gmt":"2024-10-19T09:39:58","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/aci-408r-03-2003\/"},"modified":"2024-10-25T01:58:36","modified_gmt":"2024-10-25T01:58:36","slug":"aci-408r-03-2003","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/aci\/aci-408r-03-2003\/","title":{"rendered":"ACI 408R 03 2003"},"content":{"rendered":"

The performance of reinforced concrete structures depends on adequate bond strength between concrete and reinforcing steel. This report describes bond and development of straight reinforcing bars under tensile load. Bond behavior and the factors affecting bond are discussed, including concrete cover and bar spacing, bar size, transverse reinforcement, bar geometry, concrete properties, steel stress and yield strength, bar surface condition, bar casting position, development and splice length, distance between spliced bars, and concrete consolidation. Descriptive equations and design provisions for development and splice strength are presented and com\u00adpared using a large database of test results. The contents of the database are summarized, and a protocol for bond tests is presented. Test data and reliability analyses demonstrate that, for compressive strengths up to at least 16,000 psi (110 MPa), the contribution of concrete strength to bond is best represented by the compressive strength to the 1\/4 power, while the contribution of concrete to the added bond strength provided by transverse reinforcement is best represented by compressive strength to a power between 3\/4 and 1.0. The lower value is used in proposed design equations. These values are in contrast with the square root of compressive strength, which normally is used in both descriptive and design expressions. Provisions for bond in ACI 318-02 are shown to be unconservative in some instances; specifically, the 0.8 bar size factor for smaller bars should not be used and a f-factor for bond is needed to provide a consistent level of reliability against bond failure. Descriptive equations and design procedures developed by Committee 408 that provide improved levels of reliability, safety, and economy are presented. The ACI Committee 408 design procedures do not require the use of the 1.3 factor for Class B splices that is required by ACI 318. Keywords: anchorage; bond; concrete; deformed reinforcement; development length; reinforced concrete; reinforcement; relative rib area; splice; stirrup; tie.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nCONTENTS
CONTENTS <\/td>\n<\/tr>\n
2<\/td>\nPREFACE
PREFACE <\/td>\n<\/tr>\n
3<\/td>\nCHAPTER 1\u2014 BOND BEHAVIOR
CHAPTER 1\u2014 BOND BEHAVIOR <\/td>\n<\/tr>\n
4<\/td>\n1.1\u2014Bond forces\u2014background
1.1\u2014Bond forces\u2014background <\/td>\n<\/tr>\n
6<\/td>\n1.2\u2014Test specimens
1.2\u2014Test specimens
1.3\u2014Details of bond response
1.3\u2014Details of bond response <\/td>\n<\/tr>\n
8<\/td>\n1.4\u2014Notation
1.4\u2014Notation <\/td>\n<\/tr>\n
9<\/td>\nCHAPTER 2\u2014 FACTORS AFFECTING BOND
CHAPTER 2\u2014 FACTORS AFFECTING BOND
2.1\u2014Structural characteristics
2.1\u2014Structural characteristics
2.1.1 Concrete cover and bar spacing
2.1.1 Concrete cover and bar spacing <\/td>\n<\/tr>\n
10<\/td>\n2.1.2 Development and splice length
2.1.2 Development and splice length
2.1.3 Transverse reinforcement
2.1.3 Transverse reinforcement <\/td>\n<\/tr>\n
12<\/td>\n2.1.4 Bar casting position
2.1.4 Bar casting position <\/td>\n<\/tr>\n
13<\/td>\n2.1.5 Noncontact lap splices
2.1.5 Noncontact lap splices <\/td>\n<\/tr>\n
15<\/td>\n2.2\u2014Bar properties
2.2\u2014Bar properties
2.2.1 Bar size
2.2.1 Bar size
2.2.2 Bar geometry
2.2.2 Bar geometry <\/td>\n<\/tr>\n
17<\/td>\n2.2.3 Steel stress and yield strength
2.2.3 Steel stress and yield strength
2.2.4 Bar surface condition
2.2.4 Bar surface condition
2.2.4.1 Bar cleanliness
2.2.4.1 Bar cleanliness
2.2.4.2 Epoxy-coated bars
2.2.4.2 Epoxy-coated bars <\/td>\n<\/tr>\n
18<\/td>\n2.3\u2014Concrete properties
2.3\u2014Concrete properties
2.3.1 Compressive strength
2.3.1 Compressive strength <\/td>\n<\/tr>\n
19<\/td>\n2.3.2 Aggregate type and quantity
2.3.2 Aggregate type and quantity
2.3.3 Tensile strength and fracture energy
2.3.3 Tensile strength and fracture energy <\/td>\n<\/tr>\n
20<\/td>\n2.3.4 Lightweight concrete
2.3.4 Lightweight concrete <\/td>\n<\/tr>\n
21<\/td>\n2.3.5 Concrete slump and workability admixtures
2.3.5 Concrete slump and workability admixtures <\/td>\n<\/tr>\n
22<\/td>\n2.3.6 Mineral admixtures
2.3.6 Mineral admixtures
2.3.7 Fiber reinforcement
2.3.7 Fiber reinforcement <\/td>\n<\/tr>\n
23<\/td>\n2.3.8 Consolidation
2.3.8 Consolidation
2.3.8.1 Vibration
2.3.8.1 Vibration <\/td>\n<\/tr>\n
24<\/td>\n2.3.8.2 Construction-related vibrations
2.3.8.2 Construction-related vibrations <\/td>\n<\/tr>\n
25<\/td>\n2.3.8.3 Revibration
2.3.8.3 Revibration
2.4\u2014Summary
2.4\u2014Summary
CHAPTER 3\u2014 DESCRIPTIVE EQUATIONS
CHAPTER 3\u2014 DESCRIPTIVE EQUATIONS
3.1\u2014Orangun, Jirsa, and Breen
3.1\u2014Orangun, Jirsa, and Breen <\/td>\n<\/tr>\n
26<\/td>\n3.2\u2014Darwin et al.
3.2\u2014Darwin et al. <\/td>\n<\/tr>\n
27<\/td>\n3.3\u2014Zuo and Darwin
3.3\u2014Zuo and Darwin
3.4\u2014Esfahani and Rangan
3.4\u2014Esfahani and Rangan
3.5\u2014ACI Committee 408
3.5\u2014ACI Committee 408
3.6\u2014Comparisons
3.6\u2014Comparisons <\/td>\n<\/tr>\n
29<\/td>\nCHAPTER 4\u2014 DESIGN PROVISIONS
CHAPTER 4\u2014 DESIGN PROVISIONS
4.1\u2014ACI 318
4.1\u2014ACI 318 <\/td>\n<\/tr>\n
30<\/td>\n4.2\u2014ACI 408.3
4.2\u2014ACI 408.3 <\/td>\n<\/tr>\n
31<\/td>\n4.3\u2014Recommendations by ACI Committee 408
4.3\u2014Recommendations by ACI Committee 408
4.3.1
4.3.1 <\/td>\n<\/tr>\n
32<\/td>\n4.4\u2014CEB-FIP Model Code
4.4\u2014CEB-FIP Model Code <\/td>\n<\/tr>\n
33<\/td>\n4.5\u2014Structural reliability and comparison of design expressions
4.5\u2014Structural reliability and comparison of design expressions
4.5.1 Comparison with data
4.5.1 Comparison with data <\/td>\n<\/tr>\n
34<\/td>\n4.5.2 g-factor in ACI 318
4.5.2 g-factor in ACI 318
4.5.3 Reliability\u2014ACI 318 and ACI 408R
4.5.3 Reliability\u2014ACI 318 and ACI 408R <\/td>\n<\/tr>\n
36<\/td>\n4.5.4 Comparisons of development and splice lengthsACI 318, ACI 408.3, and ACI 408
4.5.4 Comparisons of development and splice lengthsACI 318, ACI 408.3, and ACI 408 <\/td>\n<\/tr>\n
38<\/td>\nCHAPTER 5\u2014 DATABASE
CHAPTER 5\u2014 DATABASE
5.1\u2014Bar stresses
5.1\u2014Bar stresses <\/td>\n<\/tr>\n
39<\/td>\n5.2\u2014Database
5.2\u2014Database
CHAPTER 6\u2014 TEST PROTOCOL
CHAPTER 6\u2014 TEST PROTOCOL
6.1\u2014Reported properties of reinforcement concrete stress for values of compressive strength 3000 psi (20.7 MPa)
6.1\u2014Reported properties of reinforcement concrete stress for values of compressive strength 3000 psi (20.7 MPa) <\/td>\n<\/tr>\n
40<\/td>\n6.2\u2014Concrete properties
6.2\u2014Concrete properties
6.3\u2014Specimen properties
6.3\u2014Specimen properties
6.4\u2014Details of test
6.4\u2014Details of test
6.5\u2014Analysis method
6.5\u2014Analysis method <\/td>\n<\/tr>\n
41<\/td>\n6.6\u2014Relative rib area
6.6\u2014Relative rib area
6.6.1 Measuring deformation height
6.6.1 Measuring deformation height
CHAPTER 7\u2014 REFERENCES
CHAPTER 7\u2014 REFERENCES
7.1 \u2014 Referenced standards and reports
7.1 \u2014 Referenced standards and reports <\/td>\n<\/tr>\n
42<\/td>\n7.2\u2014Cited references
7.2\u2014Cited references <\/td>\n<\/tr>\n
47<\/td>\nAPPENDIX A\u2014SI EQUATIONS
APPENDIX A\u2014SI EQUATIONS <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

408R-03: Bond and Development of Straight Reinforcing Bars in Tension (Reapproved 2012)<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ACI<\/b><\/a><\/td>\n2003<\/td>\n49<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":160918,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2650],"product_tag":[],"class_list":{"0":"post-160915","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\/160915","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\/160918"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=160915"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=160915"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=160915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}