力与形的数字建构与调度——基于海帕壳体结构力学机制与建筑参数化设计之协同

Digital Tectonic and Adjustment of Force and Form:Based on the Coordination of Structural Mechanics and Architectural Parametric Design of Hypar Shell

建筑参数化设计与结构力学机制进行全过程的有效协同,构成了一个交叉学科的前沿科研课题。立足于结构工程学视角,采用力学分析与数学算法生形相结合的方法,重点探讨、论证重新建构力与形关系的关键问题。以海帕壳体为例,在综合第一、第三主应力分布特征以选择肌理变化区域的基础上,建立力流与肌理方向、形态参数之间的关系,继而通过设置与调试结构敏感参数,实现了动态的、具有适应性的壳体结构空间形态的数字建构和调度模式。作为一种量化实验的演示与技术路线初探,可为建筑参数化设计过程中探寻结构找形算法及结构性能生形的研究提供实证参考与理论依据。

The full range coordination of architectural parametric design and structural mechanics has become a frontier interdisciplinary research. In the view of structural engineering, mechanical analysis and algorithm form-finding methods are used to discuss and demonstrate the key problem of reconstruction of force and form. Taking the Hypar Shell as an example, the relationship of force flow and parameters of skin texture is set up, after the selection of variable units of skin texture based on the distribution of the 1^st and the 3^rd principle stress. Afterwards, sensible structural parameters are set and adjusted to realize a dynamic and adaptive digital tectonic and adjustment model of shell structure. As a presentation of quantitative experiment and primary exploration of technological route, empirical references and theory evidences can be provided for the exploration of structural form-finding and structural performance morphologies.