Seismic Design of Rigid Wall-Flexible Diaphragm Buildings: An Alternate Procedure (FEMA P-1026)
Date Published: October 20, 2021
The resource provides an evaluation of an alternative design procedure for wood diaphragms in the context of FEMA P-1026. The evaluation includes considerations of collapse margin parameters, acceptance criteria, and performance groups for various building configurations. It also discusses the extension of the design procedure to include bare steel deck roof diaphragms with special seismic detailing requirements. The document outlines cyclic connector testing, diaphragm strength, and ductility assessment, as well as the development of a 3D modeling approach to analyze the seismic performance of steel deck diaphragms. The appendices detail the acronyms used, updated design procedures, and the resolution of concerns from the previous version of FEMA P-1026.
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Details
Disaster PhaseBefore
File TypePDF
LanguageEnglish
Category
AssessmentDesign & ConstructionTechnical Guidance
Audience
Building ProfessionalsBuilding Professionals
Hazard Type
EarthquakeEarthquake
Tags
wood diaphragmsretrofittingdeflection verificationseismic performance evaluationbuilding structuresseismic performanceP-delta instabilityearthquake responseseismic detailingASCE/SEI 7-22design shear amplificationRWFDseismic designSeismic Designearthquakesteel deck diaphragmsspecial seismic detailingdesign procedures3D modelingcontinuity tiesdiaphragm connectorsresponse modificationbuilding performancedeflection amplificationstructural configurationsresponse modification coefficientjoist seat rolloverWood Structural Panelshear wall force transferstructural engineeringoverstrength factorFEMA P695wind design provisionsELF procedurediaphragm designconnector testingStructural Diaphragmsductility assessmentdiaphragm behaviordiaphragm deflectionsflexible diaphragmDiaphragm Forcesout-of-plane wall forcesSteel Deck Diaphragmsdiaphragm deflectionseismic forcesASCE/SEI Standardsdiaphragm strength