The ATLSS Connection (AC) is a new beam-to-column connection consisting of a tenon, which is bolted and welded to the end of the beam, and a mortise, which is attached to the column and into which the tenon is dropped. It is safer, easier, and faster to erect and fit-up than traditional beam-to-column connections

ECT Team, Purdue

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Purdue University Purdue e-Pubs ECT Fact Sheets Emerging Construction Technologies 1-1-2007 ATLSS Beam-to-Column Connections Purdue ECT Team Purdue University, ectinfo@ecn.purdue.edu DOI: 10.5703/1288284315806 Follow this and additional works at: https://docs.lib.purdue.edu/ectfs  Part of the Civil Engineering Commons, and the Construction Engineering and Management Commons Recommended Citation ECT Team, Purdue, "ATLSS Beam-to-Column Connections" (2007). ECT Fact Sheets. Paper 97. http://dx.doi.org/10.5703/1288284315806 This document has been made available through Purdue e-Pubs, a service of the Purdue University Libraries. Please contact epubs@purdue.edu for additional information.      Factsheet ID: CV09005 Page 1 / 2  http://dx.doi.org/10.5703/1288284315806 © Purdue University     ATLSS  BEAM-TO-COLUMN CONNECTIONS   THE NEED  The technology area of connections for steel structures has not kept pace with the material and design advances in the steel area. There is a need to develop connections that are faster and easier to assemble. Connections are a labor intensive and time intensive part of steel erection and innovations are needed.  THE TECHNOLOGY  The ATLSS Connection (AC) is a new beam-to-column connection consisting of a tenon, which is bolted and welded to the end of the beam, and a mortise, which is attached to the column and into which the tenon is dropped. It is safer, easier, and faster to erect and fit-up than traditional beam-to-column connections. The cast-steel connection is self-guiding and self-aligning, and it requires a single bolt as a field fastener. It facilitates modular construction, speeds erection time, and increases worker safety.   THE BENEFITS  During a pilot test in a chemical plant, a 20' x 30' bay consisting of many individual members was pre-assembled on the ground using traditional connections and erected with the AC on each corner. It realized a 40% erection time savings compared to erection of a similar bay in an adjacent span using traditional methods. And there was no need for ironworkers to be on unsecured beams during erection, as required by traditional methods.  STATUS  Development work is continuing for other versions of the connection including a full moment connection, a composite concrete/steel system, and a version using tubular steel members. The current connection uses conventional cranes, but the ultimate goal is to develop automated crane systems that take full advantage of connection capabilities. ATLSS is developing a government/industry/university consortium and commercialization strategy to move AC to the field.     Civil - Structural Connection      Factsheet ID: CV09005 Page 2 / 2  http://dx.doi.org/10.5703/1288284315806 © Purdue University     BARRIERS  The ATLSS connection has been used successfully although the use has been limited. Further use and technology transfer to the industry will be required.  POINTS OF CONTACT  William D. Michalerya, Industry Liaison ATLSS Center  REVIEWERS  Peer reviewed as an emerging construction technology   DISCLAIMER  Purdue University does not endorse this technology or represents that the information presented can be relied upon without further investigation.  PUBLISHER  Emerging Construction Technologies, Division of Construction Engineering and Management, Purdue University, West Lafayette, Indiana   

ATLSS Beam-to-Column Connections

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ATLSS Beam-to-Column Connections

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