September 18, 2021 from 11:30am to 12:30pm Central Standard Time
Hyatt Regency 4th Floor - Park View
This presentation covers the testing and analysis of 23 total 41 ft long composite walls and solid wall panels . Walls were designed using typical loading and five different wythe connectors. An updated version of the slender-wall design method for partially composite insulated walls is presented.
Since the early 1980s, insulated concrete sandwich panels have been utilized as a design and construction technique for tilt-up. These types of panels are comprised of an inner and outer wythe of concrete, separated by a layer of rigid foam insulation. Connectors are used to fasten the two wythes of concrete together. To date, the majority of the insulated panels have been designed using non-composite action, meaning that only one wythe of concrete was considered for the panel’s structural integrity. The widespread acceptance and adoption of the International Energy Conservation Code (IECC) has reinforced the insulating benefits of sandwich panel systems and motivated many in the tilt-up industry to take a closer look at ways to maximize performance and constructability by creating a standard for composite behavior of insulated systems. To that end, the Tilt-Up Concrete Association (TCA) has collaborated with the University of Nebraska’s Durham School of Architectural Engineering and Construction to conduct what is believed to be the largest, full-scale field testing of this type with the goal of developing a slender wall design methodology to predict composite behavior under combined axial and bending forces. Learn more >
At Innovative Structural Solutions (INNSTRUCT) we have developed the Total Integrated Panel System (TIPS), a technology and process that acts as the primary structural and insulating member in conventional tilt-up construction. TIPS sets 4" of expanded polystyrene between 2 layers of welded wire mesh fabric. These are then joined together by diagonal truss wires. Because of the extreme strength of this pyramidal system, TIPS walls can be built with as little as 5" of total concrete in a 9" insulated tilt-up panel. The system reduces the amount of added rebar by 60-90% and concrete material by 30-50%, depending on the panel design. This drastic reduction in materials, along with the incredible strength of our system, creates a panel that is up to 50% lighter and much easier to work with than traditional tilt-up methods.?
Booth number: 401 | Learn more about Innovative Structural Solutions >
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: 417 | Learn more about Dayton Superior Corporation >
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: 301 | Learn more about Needham DBS >