冷弯型钢框架结构设计方法

PRESCRIPTIVE METHOD FOR RESIDENTIAL COLD-FORMEDSTEEL FRAMINGSecond EditionPrepared forThe U.S. Department of Housingand Urban Development Office of Policy Development and ResearchWashington, DCCo-Sponsored by The American Iron and Steel InstituteWashington, DCandThe National Association of Home BuildersWashington, DCbyNAHB Research Center, Inc.400 Prince George's BoulevardUpper Marlboro, MD 20774-8731 August 1997CONTENTS5.0STEEL FLOOR FRAMING..............................................................................................215.1Floor Construction................................................................................................215.2Floor to Foundation or Bearing Wall Connection.................................................215.3Allowable Joist Spans...........................................................................................215.4Joist Bracing.........................................................................................................215.5Floor Cantilevers...................................................................................................225.6Splicing.................................................................................................................225.7Framing of Floor Openings...................................................................................225.8Floor Trusses.........................................................................................................225.0STEEL FLOOR FRAMING5.1Floor ConstructionCold-formed steel framing members shall comply with the provisions of Section 2.0. Steel floors shall be constructed in accordance with this section and Figure 5.1.5.1.1Applicability LimitsThe applicability limits of Section 1.3 and Table 1.1 shall apply.5.1.2In-Line Framing. Load bearing steel floor framing, wall framing, and ceiling/roof framing shall b...