{"id":161126,"date":"2024-10-19T09:40:41","date_gmt":"2024-10-19T09:40:41","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/aci-itg-5-2-09-2009\/"},"modified":"2024-10-25T01:59:14","modified_gmt":"2024-10-25T01:59:14","slug":"aci-itg-5-2-09-2009","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/aci\/aci-itg-5-2-09-2009\/","title":{"rendered":"ACI ITG 5.2 09 2009"},"content":{"rendered":"

This standard defines procedures that may be used to design special precast concrete shear walls, coupled or uncoupled, composed of discretely jointed precast panels that are vertically post-tensioned to the foundation with unbonded tendons. Such walls are suitable for use in regions of high seismicity and for structures assigned to high seismic design categories. After a major seismic event, these walls can be expected to exhibit minimal damage in the flexural hinging region at the base of the wall as well as negligible permanent displacements. Such walls do not satisfy the prescriptive requirements of Chapter 21 of ACI 318-05 for shear walls of monolithic construction. According to 21.2.1.5 of ACI 318-05, their acceptance requires demonstration by experimental evidence and analysis that the walls have strength and toughness equal to or exceeding those provided by comparable monolithic reinforced concrete walls that satisfy the prescriptive requirements of Chapter 21. This standard describes the procedures that the designer may use to demonstrate, through analysis, that one type of unbonded post-tensioned precast wall has strength and toughness at least equal to that of comparable special reinforced concrete monolithic walls. The standard consists of Design Requirements and a Commentary. Among the subjects covered in these Design Requirements are requirements for: 1. Materials, including considerations for the coupling or connection devices, that provide the primary source of energy dissipation for the wall system; 2. Individual walls, including considerations to ensure ductility, energy dissipation, integrity, stiffness, and strength; and 3. Coupled walls, including considerations of the roles of the posttensioning tendons and coupling devices in providing energy dissipation, and strength and stiffness for coupled walls greater than the sum of those provided by the coupled walls acting as separate units. The Commentary references documentary evidence, additional to the references of ACI ITG-5.1-07 and Chapter 21 of ACI 318R-05, that supports these Design Requirements. In this standard, however, no comparison is made between the performance of precast test modules satisfying the prescriptive requirements of ACI 318 and modules satisfying these Design Requirements but not satisfying ACI 318. Such comparisons, both experimental and analytical, are available in the cited references. All references to ACI 318 and ACI 318R in these Design Requirements and Commentary refer to ACI 318-05 unless another edition of ACI 318 is specifically designated. All references to ASCE\/SEI 7 in these Design Requirements and Commentary are to ASCE\/SEI 7-05, including Supplement No. 1. In this standard, consistent with the format of ACI 318-05, the word \u201cSection\u201d is not included before a reference to a section of ACI 318-05. To more clearly designate a section in this standard, however, the word \u201cSection\u201d is used before any reference to a section of this standard. Consistent with the format of ASCE\/SEI 7-05, the word \u201cSection\u201d is included before a reference to a section of ASCE\/SEI 7-05. Keywords: coupling devices; drift angle; energy dissipation; lateral resistance; post-tensioning; precast concrete; prestressed concrete; seismic design; special shear wall; test module; toughness.<\/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
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
4<\/td>\nCONTENTS
CONTENTS
CHAPTER 1\u2014 GENERAL
CHAPTER 1\u2014 GENERAL
1.1\u2014 Introduction
1.1\u2014 Introduction <\/td>\n<\/tr>\n
5<\/td>\n1.2\u2014Scope
1.2\u2014Scope
1.2.1
1.2.1
1.2.2
1.2.2 <\/td>\n<\/tr>\n
7<\/td>\n1.2.3
1.2.3
1.2.4
1.2.4
R1.2.4
R1.2.4
1.3\u2014Drawings
1.3\u2014Drawings
R1.3
R1.3
CHAPTER 2\u2014 NOTATION AND DEFINITIONS
CHAPTER 2\u2014 NOTATION AND DEFINITIONS
2.1\u2014 Notation
2.1\u2014 Notation <\/td>\n<\/tr>\n
8<\/td>\n2.2\u2014Definitions
2.2\u2014Definitions <\/td>\n<\/tr>\n
9<\/td>\nR2.2\u2014Definitions
R2.2\u2014Definitions
CHAPTER 3\u2014 MATERIALS
CHAPTER 3\u2014 MATERIALS
3.1\u2014General
3.1\u2014General
3.2\u2014Ducts
3.2\u2014Ducts
R3.2
R3.2 <\/td>\n<\/tr>\n
10<\/td>\n3.3\u2014Reinforcement
3.3\u2014Reinforcement
3.3.1
3.3.1
R3.3.1
R3.3.1
3.3.2
3.3.2
R3.3.2
R3.3.2
3.3.3
3.3.3
R3.3.3
R3.3.3
3.3.4
3.3.4
R3.3.4
R3.3.4
3.4\u2014Concrete
3.4\u2014Concrete
3.5\u2014Interface grout
3.5\u2014Interface grout <\/td>\n<\/tr>\n
11<\/td>\nR3.5
R3.5
3.6\u2014Coupling devices
3.6\u2014Coupling devices
3.6.1
3.6.1
R3.6.1
R3.6.1
3.6.2
3.6.2
R3.6.2
R3.6.2
3.7\u2014Corrosion protection of prestressing tendons
3.7\u2014Corrosion protection of prestressing tendons
3.7.1
3.7.1
R3.7.1
R3.7.1
3.7.2
3.7.2
3.7.3
3.7.3
R3.7.3
R3.7.3
CHAPTER 4\u2014 STRUCTURAL SYSTEM REQUIREMENTS FOR WALLS
CHAPTER 4\u2014 STRUCTURAL SYSTEM REQUIREMENTS FOR WALLS
4.1\u2014General
4.1\u2014General
4.1.1
4.1.1
4.1.2
4.1.2
R4.1.2
R4.1.2
4.2\u2014Strength
4.2\u2014Strength
4.2.1
4.2.1
R4.2.1
R4.2.1
4.2.2
4.2.2
4.2.3
4.2.3
R4.2.3
R4.2.3 <\/td>\n<\/tr>\n
12<\/td>\n4.3\u2014Drift
4.3\u2014Drift
4.3.1
4.3.1
4.3.2
4.3.2
4.3.3
4.3.3
4.3.4
4.3.4
R4.3.4
R4.3.4
4.3.5
4.3.5
4.3.6
4.3.6
4.3.7
4.3.7
4.4\u2014Wall characteristics
4.4\u2014Wall characteristics
4.4.1
4.4.1
4.4.2
4.4.2
R4.4.2
R4.4.2
4.4.3
4.4.3
4.4.4
4.4.4
R4.4.4
R4.4.4
4.4.5
4.4.5
R4.4.5
R4.4.5
4.4.6
4.4.6
R4.4.6
R4.4.6
4.4.7
4.4.7
R4.4.7
R4.4.7 <\/td>\n<\/tr>\n
13<\/td>\n4.4.8
4.4.8
R4.4.8
R4.4.8
4.4.9
4.4.9
R4.4.9
R4.4.9
4.4.10
4.4.10
R4.4.10
R4.4.10
4.5\u2014Distribution of walls within structures
4.5\u2014Distribution of walls within structures
4.5.1
4.5.1
R4.5.1
R4.5.1
4.5.2
4.5.2
R4.5.2
R4.5.2
4.6\u2014Wall system-gravity load frame interactions
4.6\u2014Wall system-gravity load frame interactions
R4.6
R4.6 <\/td>\n<\/tr>\n
14<\/td>\nCHAPTER 5\u2014 DESIGN REQUIREMENTS FOR UNCOUPLED WALL SYSTEMS
CHAPTER 5\u2014 DESIGN REQUIREMENTS FOR UNCOUPLED WALL SYSTEMS
5.1\u2014 Scope
5.1\u2014 Scope
R5.1
R5.1
5.2\u2014Materials
5.2\u2014Materials
5.2.1
5.2.1
R5.2.1
R5.2.1
5.2.2
5.2.2
5.3\u2014Prestress force
5.3\u2014Prestress force
5.3.1
5.3.1
R5.3.1
R5.3.1
5.3.2
5.3.2
5.4\u2014Energy-dissipating reinforcement
5.4\u2014Energy-dissipating reinforcement
5.4.1
5.4.1
R5.4.1
R5.4.1
5.4.2
5.4.2
5.4.3
5.4.3
R5.4.3
R5.4.3 <\/td>\n<\/tr>\n
15<\/td>\n5.5\u2014Shear strength
5.5\u2014Shear strength
5.5.1
5.5.1
R5.5.1
R5.5.1
5.5.2
5.5.2
5.5.3
5.5.3
5.5.4
5.5.4
R5.5.4
R5.5.4
5.6\u2014Flexural strength and drift limits
5.6\u2014Flexural strength and drift limits
5.6.1
5.6.1
5.6.1.1
5.6.1.1
R5.6.1.1
R5.6.1.1
5.6.1.2
5.6.1.2
5.6.1.3
5.6.1.3 <\/td>\n<\/tr>\n
16<\/td>\n5.6.1.4
5.6.1.4
5.6.2
5.6.2
5.6.2.1
5.6.2.1
5.6.2.2
5.6.2.2
5.6.2.3
5.6.2.3
5.6.3
5.6.3
5.6.3.1
5.6.3.1
R5.6.3.1
R5.6.3.1 <\/td>\n<\/tr>\n
17<\/td>\n5.6.3.2
5.6.3.2
5.6.3.3
5.6.3.3
5.6.3.4
5.6.3.4
5.6.3.5
5.6.3.5
5.6.3.6
5.6.3.6
5.6.3.7
5.6.3.7
5.6.3.8
5.6.3.8
R5.6.3.8
R5.6.3.8
5.6.3.9
5.6.3.9 <\/td>\n<\/tr>\n
18<\/td>\nR5.6.3.9
R5.6.3.9
5.7\u2014Detailing of lowermost wall panel
5.7\u2014Detailing of lowermost wall panel
5.7.1
5.7.1
5.7.2
5.7.2
5.8\u2014Interface grout
5.8\u2014Interface grout
5.8.1
5.8.1
R5.8.1
R5.8.1
5.8.2
5.8.2
5.8.3
5.8.3
CHAPTER 6\u2014 DESIGN REQUIREMENTS FOR COUPLED WALL SYSTEMS
CHAPTER 6\u2014 DESIGN REQUIREMENTS FOR COUPLED WALL SYSTEMS
6.1\u2014 Scope
6.1\u2014 Scope
6.2\u2014Materials
6.2\u2014Materials
6.3\u2014Coupling devices
6.3\u2014Coupling devices
6.3.1
6.3.1
R6.3.1
R6.3.1
6.3.2
6.3.2
R6.3.2
R6.3.2
6.3.3
6.3.3
6.4\u2014Prestress force
6.4\u2014Prestress force
6.4.1
6.4.1 <\/td>\n<\/tr>\n
19<\/td>\nR6.4.1
R6.4.1
6.4.2
6.4.2
6.4.3
6.4.3
6.4.4
6.4.4
6.4.5
6.4.5
6.5\u2014Shear strength
6.5\u2014Shear strength
6.5.1
6.5.1
R6.5.1
R6.5.1
6.5.2
6.5.2
6.5.3
6.5.3
6.6\u2014Flexural strength and drift limits
6.6\u2014Flexural strength and drift limits
6.6.1
6.6.1
6.6.2
6.6.2 <\/td>\n<\/tr>\n
20<\/td>\n6.6.3
6.6.3
6.6.4
6.6.4
6.7\u2014Lowermost panel
6.7\u2014Lowermost panel
6.8\u2014Interface grout
6.8\u2014Interface grout
CHAPTER 7\u2014 DESIGN REQUIREMENTS FOR COUPLING DEVICES
CHAPTER 7\u2014 DESIGN REQUIREMENTS FOR COUPLING DEVICES
7.1\u2014 Scope
7.1\u2014 Scope
R7.1
R7.1
7.2\u2014General
7.2\u2014General
7.3\u2014Materials
7.3\u2014Materials
7.4\u2014Design methodology
7.4\u2014Design methodology
R7.4
R7.4 <\/td>\n<\/tr>\n
21<\/td>\nCHAPTER 8\u2014 REFERENCES
CHAPTER 8\u2014 REFERENCES
R8.1\u2014Referenced standards and reports
R8.1\u2014Referenced standards and reports <\/td>\n<\/tr>\n
22<\/td>\nR8.2\u2014Cited references
R8.2\u2014Cited references <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ITG-5.2-09 Requirements for Design of a Special Unbonded Post-Tensioned Precast Shear Wall Satisfying ACI ITG-5.1 & Comm<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ACI<\/b><\/a><\/td>\n2009<\/td>\n25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":161127,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2650],"product_tag":[],"class_list":{"0":"post-161126","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\/161126","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\/161127"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=161126"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=161126"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=161126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}