Design methods for flexibly formed concrete beams
Design methods for flexibly formed concrete beams
复制标题
柔性成型混凝土梁的设计方法
DOI：
10.1680/stbu.13.00061
复制
发表时间：
2014
影响因子：
2.6
通讯作者：
M. Evernden
中科院分区：
文献类型：
--
作者：
J. Orr;A. Darby;T. Ibell;M. Evernden
本文提出了结构优化、简支、灵活成形混凝土梁的迭代设计方法。使用柔性模板的设计和施工方法已被证明可以节省高达40%的材料，为低二氧化碳混凝土设计提供了重要的机会。该方法同时考虑了优化梁的极限状态和使用极限状态。设计过程的迭代本质，以及它与施工方法的相互依赖，被证明。进一步的考虑，如加固细节，方法支持柔性模具和替代支持条件也进行了讨论。它证明了用一个主要由高强度、低成本织物片组成的灵活系统取代传统的正交模具，利用混凝土为高度优化、低二氧化碳、建筑有趣的建筑形式创造非凡的可能性。
This paper presents an iterative method for the design of structurally optimised, simply supported, flexibly formed, concrete beams. The design and construction method using flexible formwork has been shown to facilitate material savings of up to 40%, providing significant opportunities for low-carbon-dioxide concrete design. The proposed method considers both ultimate and serviceability limit states for the optimised beam. The iterative nature of the design process, and its interdependency with the construction method, is demonstrated. Further considerations such as reinforcement detailing, methods to support the flexible mould and alternative support conditions are also discussed. It is demonstrated that replacing conventional orthogonal moulds with a flexible system composed primarily of high-strength, low-cost fabric sheets, utilises concrete to create extraordinary possibilities for highly optimised, low-carbon-dioxide, architecturally interesting building forms.