Tensegrity systems are a class of reticulated space structures composed of compressed bars maintained in equilibrium by a network of tensioned cables. Their stiffness depends both on elements’ mechanical properties and their internal self-stress state. Taking advantage of their structural properties, we respond to the challenge of accessibility for everybody to the sea with a new concept of modular lightweight and deployable platforms. Variable configurations are developed to fit ecologically into the marine environment thanks to the transparency of double layer tensegrity structures. Moreover, allowing practical assembly and disassembly is considered in the design to respect the coastal law. Through a numerical study, we demonstrate in this paper the capability of this solution under various representative load cases and support conditions.

After the structural and design optimization of elements constrained by weight and stiffness, we detail the design of the nodes, which are the key components ensuring geometry and foldability of the structure. Finally, on-site setting and interfacing with ground supports is experimented in marine conditions to proof the feasibility of this concept.

张力系统是一类网状空间结构，由受拉的电缆网络保持平衡的受压杆组成。它们的刚度取决于元件的机械性能及其内部自应力状态。利用它们的结构特性，我们以模块化轻便和可部署平台的新概念来应对所有人都难以入海的挑战。由于双层张力结构的透明性，已开发出多种配置以生态上适合海洋环境。此外，在设计中考虑允许进行实际的组装和拆卸，以遵守沿海法律。通过数值研究，我们在本文中证明了该解决方案在各种代表性载荷工况和支撑条件下的能力。

在受重量和刚度约束的元素的结构和设计优化之后，我们详细介绍了节点的设计，这些节点是确保结构的几何形状和可折叠性的关键组件。最后，在海洋条件下对现场设置和与地面支撑物的接口进行了实验，以证明该概念的可行性。