Abstract
This paper presents the results of full-scale flexural testing of deconstructable composite beams that are part of a sustainable composite floor system. In this system, steel beams are attached with precast concrete planks utilizing deconstructable clamping connectors to achieve composite action as well as design for deconstruction. The beam specimens were designed with varied levels of composite action and demonstrated very ductile behavior. It is shown that the elastic stiffness of the beams can be conservatively estimated using a lower-bound moment of inertia, and the ultimate flexural strength of the beams closely matches the strength predicted by standard design provisions of the American Institute of Steel Construction (AISC). The AISC effective-width provisions can be utilized to calculate the effective widths of the deconstructable composite beams. Under moderate loading, the specimens behaved as composite beams with full interaction due to the friction generated at the steel–concrete interface.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This material is based upon work supported by the National Science Foundation under Grants No. CMMI-1200820 and IIS-1328816, the American Institute of Steel Construction, Northeastern University, and Simpson Gumpertz & Heger. In-kind support is provided by Benevento Companies, Capone Iron Corporation, Fastenal, Halfen, Lehigh Cement Company, Lindapter, Meadow Burke, Souza Concrete, and S&F Concrete. This support is gratefully acknowledged. This work used the Extreme Science and Engineering Discovery Environment (XSEDE), which is supported by National Science Foundation Grant No. ACI-1548562. The authors would like to thank Kyle Coleman, Michael McNeil, Kurt Braun, Corinne Bowers, Edward Myers, Majed Alnaji, Michael Bangert-Drowns, Kara Peterman, Angelina Jay, Justin Kordas, David Padilla-Llano, and Yujie Yan for their assistance with the experiments. Any opinions, findings, and conclusions expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation or other sponsors.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 146 • Issue 8 • August 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: May 15, 2018
Accepted: Dec 4, 2019
Published online: May 27, 2020
Published in print: Aug 1, 2020
Discussion open until: Oct 27, 2020
ASCE Technical Topics:
- Beams
- Business management
- Composite beams
- Concrete
- Concrete beams
- Engineering fundamentals
- Engineering materials (by type)
- Flexural strength
- Floors
- Material mechanics
- Material properties
- Material tests
- Materials engineering
- Practice and Profession
- Precast concrete
- Steel beams
- Strength of materials
- Structural engineering
- Structural members
- Structural systems
- Sustainable development
- Tests (by type)
Authors
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