Connecting old and new structures in structural engineering

Steel, concrete, and a little creativity. Bridging two structures isn’t just about filling a gap—it’s about transferring load paths, ensuring continuity, and making sure the old and new work together seamlessly. In the photo below, you can see a new steel-framed link connecting into existing construction. These transitions are some of the most fascinating challenges in structural engineering. They force us to think about: Load transfer: How does the new framing engage the old system without overloading it? Differential movement: What happens as the two structures shrink, creep, or settle at different rates? Fireproofing & detailing: Notice how new members are already fireproofed—how do we maintain rating continuity? Construction sequencing: How do you safely build and stabilize a connector like this while the building is in use? We love seeing examples like this because they highlight that structural engineering isn’t always about designing something brand new—it’s often about integrating and adapting what’s already there. 👉 Have you tackled a project where tying into an existing building created unique challenges? We’d love to hear how you approached it. #StructuralEngineering #Construction #StructuralDesign #engineering #civil #structure

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