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BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220303T130000
DTEND;TZID=America/New_York:20220303T143000
DTSTAMP:20260412T113605
CREATED:20250703T171711Z
LAST-MODIFIED:20250703T171711Z
UID:10000114-1646312400-1646317800@nibs.org
SUMMARY:Diaphragm Seismic Design Part 1
DESCRIPTION:The 2020 NEHRP Provisions and ASCE/SEI 7-22 incorporate several notable changes to seismic design of diaphragms. This includes expanded applicability of the ASCE 7-16 Section 12.10.3 alternative design provisions for diaphragms\, originally developed in the 2015 NEHRP Provisions. This also includes new Section 12.10.4\, codifying the rigid wall-flexible diaphragm (RWFD) methodology published in FEMA P-1026\, Seismic Design of Rigid Wall-Flexible Diaphragm Buildings: An Alternative Method. These diaphragm design provisions have been largely driven by new research\, including testing and numerical studies. They have been developed to better reflect diaphragm dynamic response and deformation capacity\, and to provide improved performance\, in some cases with reduced construction cost. \nThis material will be presented in two webinars. The first webinar will provide a general introduction to seismic design of diaphragms and then focus on design examples implementing Section 12.10.3 provisions. The second webinar will repeat the general introduction and then focus on design examples implementing new Section 12.10.4 alternative RWFD provisions. \nLearning Objectives – Part 1 \n\nBecome familiar with new diaphragm design provisions in 2020 NEHRP Provisions and ASCE/SEI 7-22\nUnderstand available diaphragm design methods and when each can be used\nFollow detailed implementation of the Section 12.10.3 Alternative Design Method\nUnderstand how designs using the Section 12.10.3 provisions compare to the traditional design method
URL:https://nibs.org/event/diaphragm-seismic-design-part-1/
LOCATION:Virtual Event
CATEGORIES:BSSC NEHRP Webinar Series,Webinar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220310T130000
DTEND;TZID=America/New_York:20220310T143000
DTSTAMP:20260412T113605
CREATED:20250703T171459Z
LAST-MODIFIED:20250703T171459Z
UID:10000113-1646917200-1646922600@nibs.org
SUMMARY:Diaphragm Seismic Design Part 2
DESCRIPTION:The 2020 NEHRP Provisions and ASCE/SEI 7-22 incorporate several notable changes to seismic design of diaphragms. This includes expanded applicability of the ASCE 7-16 Section 12.10.3 alternative design provisions for diaphragms\, originally developed in the 2015 NEHRP Provisions. This also includes new Section 12.10.4\, codifying the rigid wall-flexible diaphragm (RWFD) methodology published in FEMA P-1026\, Seismic Design of Rigid Wall-Flexible Diaphragm Buildings: An Alternative Method. These diaphragm design provisions have been largely driven by new research\, including testing and numerical studies. They have been developed to better reflect diaphragm dynamic response and deformation capacity\, and to provide improved performance\, in some cases with reduced construction cost. \nThis material will be presented in two webinars. The first webinar will provide a general introduction to seismic design of diaphragms and then focus on design examples implementing Section 12.10.3 provisions. The second webinar will repeat the general introduction and then focus on design examples implementing new Section 12.10.4 alternative RWFD provisions. \nLearning Objectives – Part 2 \n\nBecome familiar with new diaphragm design provisions in 2020 NEHRP Provisions and ASCE/SEI 7-22\nUnderstand available diaphragm design methods and when each can be used\nFollow detailed implementation of the Section 12.10.4 Alternative RWFD Provisions\nUnderstand how designs using the Section 12.10.4 provisions compare to the traditional design method
URL:https://nibs.org/event/diaphragm-seismic-design-part-2/
LOCATION:Virtual Event
CATEGORIES:BSSC NEHRP Webinar Series,Webinar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20220331T130000
DTEND;TZID=America/New_York:20220331T143000
DTSTAMP:20260412T113605
CREATED:20250703T171311Z
LAST-MODIFIED:20250703T171311Z
UID:10000112-1648731600-1648737000@nibs.org
SUMMARY:Reinforced Concrete Ductile Coupled Shear Walls
DESCRIPTION:Coupled shear wall systems are recognized as distinct from isolated shear wall systems in Canadian and New Zealand codes; they are also accorded higher response modification factors in view of their superior seismic performance. ASCE 7 has so far made no such distinction. \nA ductile coupled wall system of reinforced concrete has now been defined in ACI 318-19. Issue Team (IT) 4 of the Provisions Update Committee (PUC) of the Building Seismic Safety Council (BSSC) developed a successful proposal to add four line items to ASCE Table 12.2-1\, Design Coefficients and Factors for Seismic Force-Resisting Systems\, featuring the ductile coupled wall system of reinforced concrete. The line items are under: A. Bearing Wall Systems\, B. Building Frame Systems\, and D. Dual Systems with Special Moment Frames. Based on a FEMA P-695 study\, R = 8\, Cd = 8\, and Ωo = 2.5 have been proposed in all the line items. The height limits are the same as for corresponding uncoupled isolated wall systems. Seven different changes made in ACI 318-19 for the design and detailing of special structural walls were implemented in the design of prototypes for the FEMA P-695 study. \nThe above changes appear in the 2020 Edition of NEHRP Recommended Seismic Provisions for Buildings and Other Structures. The changes have now also been approved for inclusion in the upcoming 2022 edition of ASCE 7\, which will be adopted by the 2024 International Building Code. \nThe proposed presentation will outline the above development\, will include relevant details of the specific changes to ASCE 7\, and importantly\, will feature a design example. \nLearning Objectives: \n\nUnderstand the basics of ductile coupled wall systems of concrete\nBe familiar with the ACI 318 definition of this system and understand its nuances\nUnderstand the ASCE 7-22 provisions concerning this system\nLearn how to apply this system through a design example
URL:https://nibs.org/event/reinforced-concrete-ductile-coupled-shear-walls/
LOCATION:Virtual Event
CATEGORIES:BSSC NEHRP Webinar Series,Webinar
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