<p>Tensegrity describes systems in which bars in compression seem to float inside cables in tension. This concept has inspired artists and designers for more than 60 years, however nowadays very few civil structures are built across the world. Although tensegrity structures seem visually light, there still remains a lack of rigorous and quantitative proofs about their structural efficiency in particular in terms of self-weight and stiffness. This article presents a 60m span tensegrity footbridge in steel composed of adapted simplex modules that contain one more cable than the classic simplex modules. The influence of this choice on the structural performances of the footbridge are here detailed. Eventually, the tensegrity footbridge is heavier and less stiff than traditional trusses but it is an aesthetic solution which offers the remarkable ability to deploy.</p>
<p>The project consisted of the construction of a new sheet piled wall (220m long, 1150 tons) with the requirement that there was to be no disturbance to the day to day operations of the port. It included the driving of the steel sheet piles in front of the existing wall, the pouring of a reinforced concrete capping beam (850m³), the drilling of 150 anchors (34m) and the installation of new fenders and mooring bollards.</p>
<p>The SMARTCOCO research project was developed to fill gaps in knowledge and provide design guidance for specific types of composite steel concrete structural elements used in high rise or heavily loaded structures. Those composite elements belong to structures defined as “hybrid” because they are neither reinforced concrete structures covered by Eurocode 2, nor composite steel concrete structures covered by Eurocode 4. A generic design approach based on the logics of composite sections and of reinforced concrete sections, like equivalent sections and struts and ties mechanisms, was first developed and used to design test specimens. These ones were tested in physical and/or numerical experimentations. The results were used to calibrate or correct the initial proposal for design. The output is written as a design guide which intends to complement Eurocode 2 and 4.</p>
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