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It defines minimum loadings for design and gives methods to determine required concrete and reinforcement resulting from these loadings, primarily for circular shells with a general procedure for noncircular shapes. The standard includes equations for the temperature gradient caused by gas temperature versus ambient atmosphere, and methods combining dead and wind (or earthquake) loads with vertically and circumferentially varying temperature effects. It aligns construction and references with ACI 318 and ACI 104 notation conventions.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/aci-307-98-design-and-construction-of-reinforced-concrete-chimneys-reported-by-aci-committee-307/648342/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/aci-307-98-design-and-construction-of-reinforced-concrete-chimneys-reported-by-aci-committee-307/648342.png","ImageObject",300,407,{"name":92,"@type":93},"percent12345","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-25","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What scope does ACI 307-98 cover for chimney design and construction?","Question",{"text":112,"@type":113},"It covers design and construction of circular cast-in-place or precast reinforced concrete chimney shells. If other shapes are used, their design must be substantiated using the same principles, and lining design is excluded while lining effects on the concrete shell are included.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the standard handle precast reinforced concrete chimney shells?",{"text":117,"@type":113},"A precast chimney shell is defined as a shell made from precast reinforced concrete sections assembled vertically as a self-supporting cantilever. Vertical reinforcement and grout are placed in cores during erection to provide continuity and stability, and stay-in-place precast panels are treated as cast-in-place construction.",{"name":119,"@type":110,"acceptedAnswer":120},"What load and temperature effects are included in the analysis methods?",{"text":121,"@type":113},"The standard includes minimum loadings and provides methods for determining required concrete and reinforcement. It includes equations for temperature gradients through the concrete and methods for combining dead loads with wind (or earthquake) loads together with temperature effects both vertically and circumferentially.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},648342,1792919429,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},1099529851338,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","ACI 307-98  \nDesign and Construction of Reinforced Concrete  \nChimneys (ACI 307-98)  \nReported by ACI Committee 307  \nDavid J. Bird Chairman  \nVictor A. Bochicchio John J. Carty  \nShu-Jin Fang Milton Hartstein  \nThomas Joseph  \nJagadish R. Joshi Robert A. Porthouse Ronald E. Purkey Scott D. Richart Wadi S. Rumman  \nRandolph W. Snook John C. Sowizal Barry J. Vickery Edward L. Yordy  \nThis standard gives material, construction, and design requirements for cast-in-place and precast reinforced concrete chimneys. It sets forth minimum loadings for design and contains methods for determining the concrete and reinforcement required as a result of these loadings. The method of analysis applies primarily to circular chimney shells; however, a general procedure for analysis of noncircular shapes is included.  \nThis standard is written in explicit, mandatory language, and as such, is intended for reference in project specifications.  \nEquations are provided for determining the temperature gradient through the concrete resulting from the difference in temperature of the gases inside the chimney and the surrounding atmosphere. Methods for combining the effects of dead and wind (or earthquake) loads with temperature both vertically and circumferentially are included in the standard. These methods permit the designer to establish minimum concrete and reinforcement requirements.  \nThis standard refers extensively to “Building Code Requirements for Structural Concrete”(ACI 318); construction requirements are generally in accordance with ACI 318; and notation is in accordance with ACI 104.  \nKeywords: chimneys; compressive strength; concrete construction; earthquake-resistant structures; formwork (construction); foundations; high temperature; linings; loads (forces); moments; openings; precast concrete; quality control; reinforced concrete; reinforcing steels; specifications; static loads; strength; structural analysis; structural design; temperature; thermal gradient; wind pressure.  \nCONTENTS  \nChapter 1—General, p. 307-2  \n1.1—Scope  \n1.2—Drawings  \n1.3—Regulations  \n1.4—Reference standards  \nChapter 2—Materials , p. 307-2  \n2.1—General  \n2.2—Cement  \n2.3—Aggregates  \n2.4—Reinforcement  \nChapter 3—Construction requirements , p. 307-2  \n3.1—General  \n3.2—Concrete quality  \n3.3—Strength tests  \n3.4—Forms  \n3.5—Reinforcement placement  \n3.6—Concrete placement  \n3.7—Concrete curing  \n3. 8—Construction tolerances  \n3.9—Precast erection  \nChapter 4—Service loads and general design criteria , p. 307-3  \n4.1—General  \n4.2—Wind loads  \n4.3—Earthquake loads  \n4.4—Special design considerations and requirements  \n4.5—Deflection criteria  \nChapter 5—Design of chimney shells:  \nStrength method, p. 307-9  \n5.1—General  \n5.2—Design loads  \n5.3—Required strength  \n5.4—Design strength  \n5.5—Nominal moment strength: Circular shells  \n5.6—Noncircular shapes  \n5.7—Design for circumferential bending  \nChapter 6—Thermal stresses, p. 307-13  \n6.1—General  \n6.2—Vertical temperature stresses  \n6.3—Circumferential temperature stresses  \nAppendix A—Notation, p. 307-15  \nACI 307-98 became effective November 1, 1998, and supersedes ACI 307-95. Copyright © 1998, American Concrete Institute.  \nAll rights reserved including rights of reproduction and use in any form or by any means, including the making of copies by any photo process, or by any electronic or mechanical device, printed, written, or oral, or recording for sound or visual reproduction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors.  \n307-2 ACI STANDARD  \nCHAPTER 1—GENERAL  \n1.1—Scope  \nThis standard covers the design and construction ofcircular cast-in-place or precast reinforced concrete chimney shells. If other shapes are used, their design shall be substantiated in accordance with the principles used here. The standard does not include the design of linings, but includes the effects of linings on the concrete shell.  \nA prec","cbCaisjt0pypRkZV","https://ap.wps.com/l/cbCaisjt0pypRkZV","pdf",400558,18,"English","# Chapter 1—General\n## 1.1—Scope\n## 1.2—Drawings\n## 1.3—Regulations\n## 1.4—Reference standards\n# Chapter 2—Materials\n## 2.1—General\n## 2.2—Cement\n## 2.3—Aggregates\n## 2.4—Reinforcement\n# Chapter 3—Construction requirements\n## 3.1—General\n## 3.2—Concrete quality\n## 3.3—Strength tests\n## 3.4—Forms\n## 3.5—Reinforcement placement\n## 3.6—Concrete placement\n## 3.7—Concrete curing\n## 3.8—Construction tolerances\n## 3.9—Precast erection\n# Chapter 4—Service loads and general design criteria\n## 4.1—General\n## 4.2—Wind loads\n## 4.3—Earthquake loads\n## 4.4—Special design considerations and requirements\n## 4.5—Deflection criteria\n# Chapter 5—Design of chimney shells: Strength method\n## 5.1—General\n## 5.2—Design loads\n## 5.3—Required strength\n## 5.4—Design strength\n## 5.5—Nominal moment strength: Circular shells\n## 5.6—Noncircular shapes\n## 5.7—Design for circumferential bending\n# Chapter 6—Thermal stresses\n## 6.1—General\n## 6.2—Vertical temperature stresses\n## 6.3—Circumferential temperature stresses\n# Appendix A—Notation","[{\"question\":\"What scope does ACI 307-98 cover for chimney design and construction?\",\"answer\":\"It covers design and construction of circular cast-in-place or precast reinforced concrete chimney shells. If other shapes are used, their design must be substantiated using the same principles, and lining design is excluded while lining effects on the concrete shell are included.\"},{\"question\":\"How does the standard handle precast reinforced concrete chimney shells?\",\"answer\":\"A precast chimney shell is defined as a shell made from precast reinforced concrete sections assembled vertically as a self-supporting cantilever. Vertical reinforcement and grout are placed in cores during erection to provide continuity and stability, and stay-in-place precast panels are treated as cast-in-place construction.\"},{\"question\":\"What load and temperature effects are included in the analysis methods?\",\"answer\":\"The standard includes minimum loadings and provides methods for determining required concrete and reinforcement. It includes equations for temperature gradients through the concrete and methods for combining dead loads with wind (or earthquake) loads together with temperature effects both vertically and circumferentially.\"}]","ACI 307-98 - Design and Construction of Reinforced Concrete Chimneys - reported by ACI Committee 307 | PDF",1792793173,45]