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 […]
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. A ductile coupled wall system of reinforced concrete has now been defined […]
The 2020 NEHRP Provisions developed major updates to nonstructural seismic design provisions which were then adapted for Chapter 13 of ASCE/SEI 7-22. The primary focus of the updates is the equation used to determine design forces for nonstructural components, but there are updates to other provisions as well. The training will be given in two parts. Part 1 will […]
The 2020 NEHRP Provisions developed major updates to nonstructural seismic design provisions which were then adapted for Chapter 13 of ASCE/SEI 7-22. The primary focus of the updates is the equation used to determine design forces for nonstructural components, but there are updates to other provisions as well. The training will be given in two parts. Part […]
Evolution of Seismic Design Values over the Years The 2020 NEHRP Provisions, and ASCE 7-24 that is based on it, adopt a new USGS ground motion model that incorporates stie class and basin effects directly into the calculation of gridded seismic design values. For the first time, these values are available only through an on-line […]
Join the National Institute of Building Sciences BIM Council, as we discuss the current state of digital delivery and lay the groundwork for future exploration. This webinar will highlight an increasing trend toward collaboration and the impacts of requirements related to information privacy and cyber security. We will hear from leaders and stakeholders from the […]
New Multi-Period Response Spectra and Ground Motion Requirements This presentation summarizes a comprehensive set of new multi-period response spectra (MPRS) and related ground motion requirements of the 2020 edition of the NEHRP Recommended Provisions (and ASCE/SEI 7-22). These changes collectively improve the accuracy of the frequency content of earthquake design ground motions and enhance the reliability of the […]
Join the National Institute of Building Sciences in Washington, DC, as we uncover current state challenges and discover opportunities to improve capital project delivery in the digital age. The in-person workshop, with lead facilitation provided by our BIM Council leadership and distinguished partners, will bring together a maximum of 50 hand-selected AECO stakeholders to participate […]
Cross Laminated Timber (CLT) Shear Wall Design Example Seismic force resisting systems based on Cross Laminated Timber (CLT) shear walls have garnered considerable attention for use in building structures around the world for many years with standardization as a seismic force resisting system happening in the U.S. for the first time with inclusion of seismic […]
Composite Plate Shear Wall / Concrete Filled (C-PSW/CF), also known as the SpeedCore system, is an efficient seismic force-resisting system for buildings. Two types of C-PSW/CF systems are possible: coupled and uncoupled. Seismic design requirements for uncoupled C-PSW/CF systems were addressed in ASCE/SEI 7-16 and AISC 341-16, Section H7. Coupled C-PSW/CF systems are more ductile […]
The EV revolution is here, and GM is focused on efforts that drive a 0,0,0, future (Zero Crashes, Zero Emissions, and Zero Congestion). A crucial transformation of our transport system to EV is necessary, if we are to achieve the goals of climate change, while at the same time decarbonizing the grid. Maintaining reliability is […]
Women in the built environment are daring the rest of us to confront stereotypes that lead to harmful hiring practices and personnel policies that reinforce barriers of the past and continue to hold women back. These groundbreakers defy the odds in the male-dominated industries that support the built environment, and they must be aligned to […]
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