3D Development, Analysis and Design of Cold-Formed Steel Mid-rise Apartment Building Frames

3D Development, Analysis and Design of Cold-Formed Steel Mid-rise Apartment Building Frames

This project focuses on the development, analysis, and design of cold-formed steel (CFS) products for mid-rise apartment building frames.

From Project B2.1 of the first ARC Steel Research Hub, it was evident from a conceptual design perspective that the lateral load demand for the lower storeys of an archetype CFS intensive mid-rise apartment building in Australia is beyond the capacity of existing CFS shear panels. In this new expanded project, novel, high-capacity shear panels will be designed for several load levels using highly efficient steel products already used in the construction of CFS mid-rise apartment buildings. Floor-to-wall connections for the mid-rise shear panels will be developed and investigated through pilot-scale laboratory tests and Finite Element Analyses as commercially available connection details in Australia are primarily designed for one or two storey houses only. Analytical models will be developed for the mid-rise floor-to-wall connections to enable their simulation in a comprehensive 3D structural analysis of a mid-rise CFS building frame, for research as well as for practical design purposes. Efficient and effective shear panels for use in short-length walls often found in townhouses will also be developed. Townhouses, with relatively few walls at the ground level, often require the use of expensive and site-work reliant lateral load resisting systems.

24/6/2021- 23/6/2024

In this new expanded project, novel, high-capacity shear panels will be designed for several load levels using highly efficient steel products already used in the construction of CFS mid-rise apartment buildings. Floor-to-wall connections for the mid-rise shear panels will be developed and investigated through pilot-scale laboratory tests and Finite Element Analyses as commercially available connection details in Australia are primarily designed for one or two storey houses only. Analytical models will be developed for the mid-rise floor-to-wall connections to enable their simulation in a comprehensive 3D structural analysis of a mid-rise CFS building frame, for research as well as for practical design purposes. Efficient and effective shear panels for use in short-length walls often found in townhouses will also be developed. Townhouses, with relatively few walls at the ground level, often require the use of expensive and site-work reliant lateral load resisting systems.

Enabling the construction of CFS intensive mid-rise apartment buildings where the lateral load resisting system is composed of lightweight, high-capacity CFS shear panels, leading to lower costs. Facilitating fast construction as the CFS shear panels can be prefabricated off-site and installed at the same time as the gravity load bearing system. Providing flexibility to the layout of apartment buildings as the walls can act as independent or auxiliary shear walls. Doing away with the need for expensive alternative systems to resist lateral loads of CFS townhouses. Making available analysis/design guidelines that account for the stiffness contributions of all relevant components, leading to more efficient yet reliable structural designs of CFS multi-storey buildings.

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University of Wollongong

Status

Ongoing

Principal Lead

Mark Eckermann

Mark Eckermann holds the position of Product Innovation Manager at BlueScope in Port Kembla. He leads the technical team focussed on long term and breakthrough innovation, operating across a wide range of science and technology fields, from fundamental steelmaking metallurgy to building physics and performance. He studied at the University of Wollongong graduating with a Bachelor’s Degree in Materials Engineering and has held a diverse range of positions over 25 years with BHP / BlueScope including product quality investigations and projects, website design and build, marketing, strategy, direct customer sales and indirect customer business development.

Researchers