基于弹性模板技术的大跨度壳体数字化建筑设计与建造研究

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年份：2022 学校：华南理工大学/建筑学院 课题：基于弹性模板技术的大跨度壳体数字化建筑设计与建造研究 设计师：黄浩明/高肖帆/陈建铭 指导老师：熊璐/钟冠球/何小欣 基地地址：中国广州市天河区五山路381号 类别：基础建设

基于当前国内外行业现状和研究，探索一种面向曲面壳体模具的弹性网格系统建造新工艺。该模板系统在运用牵拉工艺后更高效、低成本、一体化，大量减少支承的使用。

The high cost of the manufacturing of the formworks and scaffolding has burdened the construction of shell structures for years. However, recent advances in digital technology have revolutionized the emerging studies on the elastic geodesic grid shell which traditionally requires lifting equipment and large quantities of scaffolding for erection. Motivated by this concept, we propose an integrated approach toward the design and fabrication of shells along with their formworks. This integration is driven by a two-stage self-assembly procedure of a cable-pulling geodesic grid shell, which could significantly reduce the cost of freeform formworks manufacturing and scaffolding. In the first stage, the weaving strips are placed on the ground in a pre-defined configuration before the erection, with cables going through and connecting corresponding holes. In the second stage, the weaving strips are gradually lifted to the target form by pulling the cable system and eventually stable when the gaps between strips are closed. To avoid unpredictable stress distribution and concentration that occurred in the forming process, we adopt proper layout and pulling order of the strips with synchronized control of the cables. Further, by using a tunable stiffness mechanism with GFRP tubes on-site forming craft involved, we can achieve both the flexible form-finding process and the stiffening of the structure as formworks for a diverse range of shapes and stability of the fabrication process. The approach might offer a new perspective on automation in the construction of shell structures.

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