[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-663455-105":59,"doc-detail-663455-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","structural-design-manual-structural-design-manual-april-1982","Structural Design Manual - Structural Design Manual - April 1982","","Structural Design Manual for the Los Angeles County Flood Control District, focusing on reinforced concrete design using allowable working stresses, service loads, and accepted straight-line theory of flexure. It sets out design methods, loading combinations to maximize stresses, and allowable concrete and reinforcing steel unit stresses for conduits and hydraulic structures, including material assumptions such as 28-day concrete compressive strength and guidance for flexure, shear, bond, bearing, splices, and anchorage per referenced building code requirements.",{"@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/structural-design-manual-structural-design-manual-april-1982/663455/",{"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/structural-design-manual-structural-design-manual-april-1982/663455.png","ImageObject",300,407,{"name":92,"@type":93},"cryingin4k","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-10-28",true,{"@type":102,"interactionType":103,"userInteractionCount":19},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What design basis does this manual require for reinforced concrete members?","Question",{"text":112,"@type":113},"Designs are made with reference to allowable working stresses, service loads, and accepted straight-line theory of flexure. Designs based on load factors and ultimate strengths require prior District approval.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How does the manual define loading combinations?",{"text":117,"@type":113},"Loads must be placed in the combination(s) that induce the maximum stresses at any section, and frames or continuous construction must resist the maximum effects of prescribed loads at all sections.",{"name":119,"@type":110,"acceptedAnswer":120},"What 28-day concrete compressive strength assumption is used for conduits and hydraulic structures?",{"text":121,"@type":113},"The 28-day compressive strength is assumed to be 4000 psi, with noted exceptions for reinforced concrete pipe over 108 inches in diameter, cast-in-place pipe, and prestressed pipe.","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},663455,1793227992,{"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":19,"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":129,"read_time":144},137458181193,"https://ap-avatar.wpscdn.com/davatar_6f874abed73319feea01a86fa6f0fab8","Los Angeles County Flood Control District  \n# DESIGN MANUAL\n\nSTRUCTURAL  \nApril 1982  \noad4.4aileehiel  nginee   \nPREPARED BY DESIGN DIVISION  \nMas Naqami,Division EngineerRobert L.Scavarda,Assistant Division Engineer  \nSupervised By:  \nGarvin J.Pederson,Civil Engineer III  \nEdited By:  \nDaniel N.Short,Civil Engineer II  \nAssisted By:  \nMagdy Ghabrial  \nSam Shahin  \nSabina Sena  \n## TABLE OF CONTENTS\n\nSTRUCTURAL DESIGN MANUAL  \nSECTION  \nAALLOWABLE STRESS AND GENERAL CRITERIA  \nBCOMPUTER DESIGN  \nC  \nDRAMI NGS AND CALCULATION SHEETS  \nD  \nSTANDARD DRAWI NGS  \nE  \nDESIGN DATA  \nF  \nSTRUCTURAL NOTES  \nG  \nDESIGN OF BOX CONDUITS  \nH  \nDESIGN OF TUNNEL SECTIONS  \nI  \nDESIGN OF REINFORCED CONCRETE PIPE 108 INCHES INDIAMETER AND UNDER  \nJ  \nDESIGN OF REINFORCED CONCRETE PIPE OVER 108 INCHESIN DIAMETER  \nK  \nDESIGN OF·PRESTRESSED CONCRETE PIPE  \nL  \nDESIGN OF ASBESTOS CEMENT PIPE  \nM  \nDESIGN QF CAST-IN-PLACE PIPE  \nN  \nDESIGN OF CORRUGATED METAL PIPE  \n0  \nDESIGN OF RECTANGULAR OPEN CHANNELS  \nP     DESIGN OF OPEN TRAPEZ0IDAL CHANNEL  \nQ  \nSUBDRAI NAGE SYSTEM  \nR      TYPE OF SUBDRAINS  \nS      DESIGN CHARTS AND DRAWINGS  \nINDEX  \n## LIST OF CHARTS\n\nSTRUCTURAL DESIGN MANUAL  \nPAGE  \nLOAD CHARTS AND GRAPHS ………………………………………………………………………………………………………………S-1  \nBOX CONDUITS - LOADING CONDITIONS ………………………………………………………………………………S-17  \nCOST COMPARISON CURVES ………………………………………………………………………………………………………………S-21  \nBOX CONDUITS - STANDARD DESIGN ………………………………………………………………………………………S-23  \nR. C.PIPE - BEDDING CASES …………………………………………………………………………………………………S-37  \nR. C.PIPE - D-LOAD CHARTS …………………………………………………………………………………………………S-38  \nR.C.PIPE- DESIGN CHARTS………………………………………………………………………………s-65  \nR. C.PIPE- DESIGN COEFFICIENTS ………………………………………………………………………………S-71  \nCAST-1N-PLACE PIPE THICKNESSES(RESERVED)……………………………………………s-72  \nRECTANGULAR CHANNEL CHARTS ……………………………………………………………………………………………………S-76  \nHETENYI EQUATIONS AND CURVES ……………………………………………………………………………………………S-79  \nDETAILING FORMS ………………………………………………………………………………………………~------------S-100  \nSTANDARD DRAMING CRITERIA ………………………………………………………………………………………………S-103  \nASBESTOS CEMENT PIPE- D-LOADS ………………………………………………………………………………………S-106  \nCOMPUTER PROGRAM WRITE-UP  \nB0X CONDUIT DESIGN …………………………………………………………………………………………………………………S-107  \nRECTANGULAR CHANNEL DESIGN …………………………………………………………………………………………S-118  \nR. C.PIPE DES IGN ……………………………………………………………………………………………………………S-137  \nSECTION A  \nG E N E R A L C RIT E R I A A N DA LL0 W A BL E ST R E S S E S  \n## STRUCTURAL DES1GN CRITERLA\n\nNovember,1970  \nSect lon A  \n## General Criteria and Allowable Stresses\n\n### A-1 Hethod of Deslgn\n\nThe design of reinforced concrete menbers shal1 be made with reference toallowable working stresses,service loads,and the accepted stratght-1inetheory of flexure.Designs made with reference to lced factors andultimate strengths are not accept able unless prior District approval isobtained,  \nA11 members of frames or cont inuous construction shall be desIgned toresist at all sect ions the maximum effects of the prescribed loads.Loadsshall be placed in the comb ination(s)that induce the max1mum st ressesat any sect ion,  \n### A-2 Allciable Stresses\n\n#### A-2.1 Conduits and,Hydraulic Structures\n\nAllowable concrete and reinforeing steel unit stresses shall be asshownbelow.  \nDesIgn eriteria not specifically covered in this manuał shall be asspecifled in the 1963.Edition of the \"Bui1ding Code Requi rements forReinforced Concrete\"(AC1318-63)published by the Anerican ConcreteInstitute.  \nMain stress-carrying bars shall comply with A.S.T.M.A-615,Grade 60.  \nLongitudinel steel shall comply with either A.S.T.M.A-615,Grade 40  \nor A.S.T.M。A-615,Grade 60.  \nA-2 Allcwable Stresses continued.  \n#### (A-2.1 Condults and Hydraulic Structures)\n\nThe 28-day compresslve strength of.the concrete shall be assumed tobe 4000 psi except for reinforced concrete pipe over 108 inches indi ameter,cast-in-place pipe,and prestressed pipe.  \nSee discussion herein for increases in allowable stresses","cbCaivmJNQucWNWV","https://ap.wps.com/l/cbCaivmJNQucWNWV","pdf",19314901,284,"English","# TABLE OF CONTENTS\n## SECTION A - Allowable Stress and General Criteria\n## LIST OF CHARTS\n## SECTION A - General Criteria and Allowable Stresses\n### A-1 Method of Design\n### A-2 Allowable Stresses\n#### A-2.1 Conduits and Hydraulic Structures","[{\"question\":\"What design basis does this manual require for reinforced concrete members?\",\"answer\":\"Designs are made with reference to allowable working stresses, service loads, and accepted straight-line theory of flexure. Designs based on load factors and ultimate strengths require prior District approval.\"},{\"question\":\"How does the manual define loading combinations?\",\"answer\":\"Loads must be placed in the combination(s) that induce the maximum stresses at any section, and frames or continuous construction must resist the maximum effects of prescribed loads at all sections.\"},{\"question\":\"What 28-day concrete compressive strength assumption is used for conduits and hydraulic structures?\",\"answer\":\"The 28-day compressive strength is assumed to be 4000 psi, with noted exceptions for reinforced concrete pipe over 108 inches in diameter, cast-in-place pipe, and prestressed pipe.\"}]","Structural Design Manual - Structural Design Manual - April 1982 | PDF",716]