What are the most promising new connection design techniques for structural engineering?

2 Hybrid connections

Another promising new connection design technique for structural engineering is the use of hybrid connections, which combine different types of materials or connection methods to achieve optimal performance and functionality. Hybrid connections can exploit the advantages of each component, such as strength, stiffness, ductility, or energy dissipation, and overcome their limitations, such as weight, cost, or complexity. For example, hybrid connections can use steel bolts and adhesive bonding to join composite beams and columns, or use friction dampers and post-tensioning to enhance the seismic resistance of steel frames.

3 Digital connections

A third new connection design technique for structural engineering is the use of digital technologies, such as 3D printing, robotics, or artificial intelligence, to design, fabricate, and assemble connections. Digital connections can enable more complex, customized, and efficient connection geometries and configurations, as well as facilitate the integration of sensors, actuators, or smart materials. For example, digital connections can use 3D printing to create interlocking or modular components that can be easily assembled on site, or use robotics to perform welding or bolting tasks with precision and speed.

4 Biomorphic connections

A fourth new connection design technique for structural engineering is the use of biomorphic principles, which mimic the structures and functions of natural organisms or systems, to design connections. Biomorphic connections can achieve high performance, adaptability, and resilience by emulating the features and behaviors of biological entities, such as bones, muscles, or plants. For example, biomorphic connections can use hierarchical or cellular structures to optimize the distribution of stress and strain, or use tendon-like elements to adjust the stiffness and shape of the connection.

5 Sustainable connections

A fifth new connection design technique for structural engineering is the use of sustainable materials and methods to design connections that minimize the environmental impact and enhance the social and economic benefits of structures. Sustainable connections can reduce the consumption of energy and resources, the generation of waste and emissions, and the dependence on non-renewable or scarce materials, as well as improve the health and well-being of the users and communities. For example, sustainable connections can use recycled or renewable materials, such as timber, bamboo, or bio-based composites, or use low-carbon or circular processes, such as prefabrication, modularization, or deconstruction.

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?