A Parametric Study of the New Diaphragm Design Force Methods
October 6, 2022 from 1:30pm to 2:30pm Mountain Standard Time
Colorado Convention Center - Mile High 4EF
Since its introduction into U.S. building codes and standards, a single generally-accepted method has existed for determining seismic design forces on roof diaphragms. Recently, an alternate procedure was introduced in ASCE 7-16, and then an additional alternate procedure was introduced in ASCE 7-22 for single-story tilt-up and masonry buildings. Suddenly the determination of these diaphragm forces has become much more complex. The two newer methods are based on better research; however, it is of general interest to the engineer and their client to evaluate which method might be most cost efficient to select. This presentation provides a brief background of these three diaphragm design force methods and evaluates them side-by-side for a typical large single story tilt-up building. It is revealed that the choice of the most cost-efficient method is not necessarily straight-forward, and is instead dependent upon the building size, shape, response modification factor R, and the building site's seismicity. Armed with this knowledge, the design engineer can evaluate the balance of cost efficiency and modeling appropriateness when selecting a diaphragm seismic design force method on a particular project.
LEARNING OBJECTIVES
- Awareness of the new diaphragm design force methods
- Recognizing the limitations of the three diaphragm methods
- Evaluating which diaphragm method is most cost effective
- Evaluating which diaphragm method is most appropriate
TRACK SPONSOR - Seretta Construction, Inc.
Seretta was founded in 1987 in Orlando, FL and now has offices in Orlando, Charlotte and Austin. We perform complete foundation, slab, tiltwall and paving packages. We also perform high tolerance and specialty slabs. We work throughout the Southeast, Mid-Atlantic, Gulf Coast and Southwestern United States.
TRACK SPONSOR - Dayton Superior Corporation
At Dayton Superior, we are serious about providing the best concrete construction product solutions in the industry. To us, they are not just what we sell, they’re a reflection of who we are. Our vast product portfolio is comprised of tough, tested and high performing solutions, trusted by contractors. Today, we are among the world’s leading suppliers to the non-residential concrete construction industry. With accessories, chemicals and forming products, we are your single source solution for Tilt-Up projects.
Booth number: 313 | Learn more about Dayton Superior Corporation >
TRACK SPONSOR - Needham DBS
Needham DBS is a structural engineering firm providing services for all types of building construction. Clients include Architects, Contractors, Developers, Building Owners and Manufacturing Companies. With such a wide range of clients, Needham DBS has designed many types of projects all over North America and the Caribbean. Needham DBS is a leader in the design-build delivery of building structural products through Needham's DBS division. Needham DBS uses BIM technology, combined with twenty-five years of steel fabrication experience, to provide a single source proposal for division five products. This approach is now being expanded into division three concrete products.
Booth number: 212 | Learn more about Needham DBS >
TRACK SPONSOR - Leviat
Leviat is a world leader in lifting, bracing, insulating, and anchoring technology for the construction industry.
Our trusted product brands - including Meadow Burke, Thermomass, HALFEN, Plaka and Ancon - are all known for high performance, quality and reliability. These engineered products and innovative construction solutions are used in a variety of sectors from residential to infrastructure.
We help our ambitious construction partners to turn architectural visions into reality and build better, safer, stronger and faster. Our engineers provide technical design assistance at every stage of a project, from initial planning to installation and beyond. Our technical support services range from simple product selection through to the development of a fully customized project-specific design solution. Our digital engineering tools include industry-leading calculation and design software and BIM objects.
Every promise we make locally, has the commitment and dedication of our global team behind it. Leviat employs almost 3,000 people at 60 locations across North America, Europe and Asia-Pacific, providing an agile and responsive service worldwide.
A CRH company, Leviat is part of the leading building materials business in the world.
Booth number: 111 | Learn more about Leviat >
TRACK SPONSOR - Needham DBS
Needham DBS is a structural engineering firm providing services for all types of building construction. Clients include Architects, Contractors, Developers, Building Owners and Manufacturing Companies. With such a wide range of clients, Needham DBS has designed many types of projects all over North America and the Caribbean. Needham DBS is a leader in the design-build delivery of building structural products through Needham's DBS division. Needham DBS uses BIM technology, combined with twenty-five years of steel fabrication experience, to provide a single source proposal for division five products. This approach is now being expanded into division three concrete products.
Booth number: 212 | Learn more about Needham DBS >
TRACK SPONSOR - *White Cap
White Cap is a one-stop-shop providing concrete accessories and chemicals, tools and equipment, building materials and fasteners, erosion and waterproofing and safety products to professional contractors. From hard-to-find products to technical expertise to jobsite training, White Cap supports professional contractors in non-residential, infrastructure and residential end markets with everything they need to keep their projects moving on time, on budget, and as safely as possible. As the leading North American distributor for professional contractors, the White Cap family consists of multiple brands in the U.S. and Canada. White Cap operates approximately 470 branches across North America with more than 9,500 employees supporting approximately 200,000 customers across 15 construction trades.
Booth number: 311 | Learn more about *White Cap >
TRACK SPONSOR - Leviat
Leviat is a world leader in lifting, bracing, insulating, and anchoring technology for the construction industry.
Our trusted product brands - including Meadow Burke, Thermomass, HALFEN, Plaka and Ancon - are all known for high performance, quality and reliability. These engineered products and innovative construction solutions are used in a variety of sectors from residential to infrastructure.
We help our ambitious construction partners to turn architectural visions into reality and build better, safer, stronger and faster. Our engineers provide technical design assistance at every stage of a project, from initial planning to installation and beyond. Our technical support services range from simple product selection through to the development of a fully customized project-specific design solution. Our digital engineering tools include industry-leading calculation and design software and BIM objects.
Every promise we make locally, has the commitment and dedication of our global team behind it. Leviat employs almost 3,000 people at 60 locations across North America, Europe and Asia-Pacific, providing an agile and responsive service worldwide.
A CRH company, Leviat is part of the leading building materials business in the world.
Booth number: 111 | Learn more about Leviat >
TRACK SPONSOR - Brinkmann Constructors
Brinkmann Constructors is an employee-owned national general contractor specializing in construction management, design/build and design/assist services. Brinkmann is a creative force in the industry, always taking a second look to save our clients time and money. We advocate for our clients through honest and transparent communication while inspiring confidence and building trust. Brinkmann is a tilt-up construction leader, completing more than $2 billion and 38 million square feet of tilt work across the nation.
TRACK SPONSOR - *White Cap
White Cap is a one-stop-shop providing concrete accessories and chemicals, tools and equipment, building materials and fasteners, erosion and waterproofing and safety products to professional contractors. From hard-to-find products to technical expertise to jobsite training, White Cap supports professional contractors in non-residential, infrastructure and residential end markets with everything they need to keep their projects moving on time, on budget, and as safely as possible. As the leading North American distributor for professional contractors, the White Cap family consists of multiple brands in the U.S. and Canada. White Cap operates approximately 470 branches across North America with more than 9,500 employees supporting approximately 200,000 customers across 15 construction trades.
Booth number: 311 | Learn more about *White Cap >
TRACK SPONSOR - Dayton Superior Corporation
At Dayton Superior, we are serious about providing the best concrete construction product solutions in the industry. To us, they are not just what we sell, they’re a reflection of who we are. Our vast product portfolio is comprised of tough, tested and high performing solutions, trusted by contractors. Today, we are among the world’s leading suppliers to the non-residential concrete construction industry. With accessories, chemicals and forming products, we are your single source solution for Tilt-Up projects.
Booth number: 313 | Learn more about Dayton Superior Corporation >
Browse by Event Track / FULL SCHEDULE
Featured Sessions & Events
![Better Together: Creating Connectivity in a Divided World [KEYNOTE]](https://tilt-up.org/events/images/Teamwork.jpg)
The Evolution of Bondbreaker: History, Best Practices, and Troubleshooting
October 6, 2022 at 10:30am
Tilt-Up Concrete Association (TCA)
PO Box 204
402 1st Avenue SE
Mount Vernon, IA 52314
United States
Connect with Us!
About the Tilt-Up Concrete Association
Founded in 1986, the Tilt-Up Concrete Association (TCA) strives to improve the quality and acceptance of site-cast Tilt-Up construction - one of the fastest growing industries in the United States, combining the advantages of reasonable cost with low maintenance, durability, speed of construction and minimal capital investment. Over 10,000 buildings, enclosing more than 650 million square feet, are constructed each year using this construction method.
All content copyright 2021 - Tilt-Up Concrete Association, unless noted otherwise.
Homepage slider image credits: (1) Ryan Goubty | Gensler, (2) Simon Menges | David Chipperfield Architects, (3) Bill Timmerman | richärd+bauer, (4) David Lauer | Semple Brown, (5) Matthew McFarland | Forum Studio.