New Report Highlights Steel and Timber Construction for High-Rise Buildings

December 4, 2017

(Chicago, IL) - The American Institute of Steel Construction (AISC) and Skidmore, Owings & Merrill LLP (SOM) have released a new report and a video presentation on steel and timber research for mid- and high-rise residential buildings, available for free at

Structural steel frames have many benefits that complement residential construction, such as prefabrication and speed of construction. These characteristics are similar to emerging technologies such as cross-laminated timber. AISC and SOM partnered to study the combination of these materials as they relate to the challenges of residential construction. The report covers the motivations of this research and a proposed steel-timber composite system for high-rise buildings.

The proposed system consists of structural steel columns and beams that support a Cross-Laminated Timber (CLT) floor system, creating a flat soffit condition. This steel and timber framing system builds on SOM’s Timber Tower Research Project, launched in 2013 with Oregon State University, which studied timber-concrete composite construction for a hypothetical high-rise building. The purpose of the testing program was to validate CLT floor systems with a composite concrete topping slab, and the testing program established that the concepts developed by SOM are valid for high-rise buildings. AISC and SOM’s study successfully shows that the comparative steel-timber composite construction system could also be competitive in the high-rise residential market.

The report, “AISC Steel and Timber Research for High Rise Residential Buildings - Final Report,” and a video presentation by Benton Johnson, PE, SE, LEED Green Associate, senior structural engineer at SOM, titled, “Your Next Project Considering Steel & Timber Research for Residential Buildings,” are available for free at


For more information contact:

Dani Friedland
Director of Marketing Communications

American Institute of Steel Construction

The American Institute of Steel Construction, headquartered in Chicago, is a non-partisan, not-for-profit technical institute and trade association established in 1921 to serve the structural steel design community and construction industry. AISC's mission is to make structural steel the material of choice by being the leader in structural steel-related technical and market-building activities, including specification and code development, research, education, technical assistance, quality certification, standardization, market development, and advocacy. AISC has a long tradition of service to the steel construction industry of providing timely and reliable information. 

130 E. Randolph St, Suite 2000
Chicago IL 60601