{"id":180373,"date":"2024-10-19T11:15:47","date_gmt":"2024-10-19T11:15:47","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/aci-447r-18\/"},"modified":"2024-10-25T03:33:09","modified_gmt":"2024-10-25T03:33:09","slug":"aci-447r-18","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/aci\/aci-447r-18\/","title":{"rendered":"ACI 447R 18"},"content":{"rendered":"

This guide assists practitioners in understanding: 1) twisting moments in two-way slabs, when twisting moments are an essential consideration; 2) methods that can be used to account for twisting moments in design; and 3) the options available for each method of the various system geometries. Descriptions of twisting moments are provided theoretically and visually in the guide, and six methods of accounting for twisting moments in design are discussed. Applicability of the various methods is evaluated through a comparison of designs resulting from each method for a variety of two-way slab types and geometries. The theories described in the guide also apply to the design of two-way wall and two-way dome systems. Keywords: finite element analysis; shell design; slab design; torsion; twist; twisting moments; wall design.<\/p>\n

PDF Catalog<\/h4>\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
3<\/td>\nTITLE PAGE <\/td>\n<\/tr>\n
4<\/td>\nCHAPTER 1\u2014INTRODUCTION AND SCOPE
1.1\u2014Introduction
1.2\u2014Scope
CHAPTER 2\u2014NOTATION AND DEFINITIONS
2.1\u2014Notation <\/td>\n<\/tr>\n
5<\/td>\n2.2\u2014Defintions
CHAPTER 3\u2014BACKGROUND
3.1\u2014Qualitative introduction to twisting moments in slabs <\/td>\n<\/tr>\n
6<\/td>\n3.2\u2014Behavior of linear-elastic isotropic slabs
3.3\u2014Equilibrium in slabs
3.4\u2014Principal axes <\/td>\n<\/tr>\n
7<\/td>\n3.5\u2014Orthogonal reinforcement and equilibrium for twisting moments
3.6\u2014Effects of slab geometry on twisting moments <\/td>\n<\/tr>\n
8<\/td>\n3.7\u2014Traditional slab design methods
3.8\u2014Finite element analysis (FEA)-based slab design resultants <\/td>\n<\/tr>\n
9<\/td>\nCHAPTER 4\u2014AVAILABLE DESIGN METHODS
4.1\u2014Finite element analysis (FEA)-based design ignoring twist
4.2\u2014Design using the Wood and Armer method
4.3\u2014Design using the sandwich model <\/td>\n<\/tr>\n
10<\/td>\n4.4\u2014Design using element nodal forces <\/td>\n<\/tr>\n
11<\/td>\n4.5\u2014Design using twist-free analysis <\/td>\n<\/tr>\n
12<\/td>\nCHAPTER 5\u2014COMPARISON OF DESIGN METHODS
5.1\u2014Sensitivity to angle of principal axes <\/td>\n<\/tr>\n
13<\/td>\n5.2\u2014Typical design conditions <\/td>\n<\/tr>\n
23<\/td>\nCHAPTER 6\u2014TWO-WAY WALLS
6.1\u2014General considerations
6.2\u2014Impact of twisting moment on walls exhibiting two adjacent fixed edges <\/td>\n<\/tr>\n
26<\/td>\nCHAPTER 7\u2014SHELL STRUCTURES
7.1\u2014General considerations
7.2\u2014Typical bulk material storage hemisphere <\/td>\n<\/tr>\n
27<\/td>\n7.3\u2014Typical loading conditions
7.4\u2014Typical design regions <\/td>\n<\/tr>\n
31<\/td>\nCHAPTER 8\u2014REFERENCES
Authored documents <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ACI 447R-18: Design Guide for Twisting Moments in Slabs<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ACI<\/b><\/a><\/td>\n2018<\/td>\n36<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":180376,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2650],"product_tag":[],"class_list":{"0":"post-180373","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\/180373","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\/180376"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=180373"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=180373"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=180373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}