Nonlinear Analysis and Behaviour of Shallow Concrete Arches

混凝土拱是广泛存在的结构构件，但它们通常很深，因此预测它们的反应是常规的。浅拱的分析要困难得多，随着当代高强度混凝土的使用，浅拱通常是最佳的几何结构。本项目旨在研究平面拱的深刻非线性行为，即使在使用荷载下，由于蠕变和收缩，它也可能接近于通过屈曲。这项研究将填补结构力学中的一个重要空白，并对含有混凝土的拱门的响应产生根本性的见解。结果将包括急需的设计指导。

Concrete arches are widespread structural elements, but they are usually deep so that predicting their response is routine. The analysis of shallow arches is much more difficult, and with the contemporary use of higher strength concretes, shallow arches are often the optimum geometric configuration. This project aims to investigate the profoundly nonlinear behaviour of flat arches, which may be close to snap-through buckling, even under service load, due to creep and shrinkage. This research will fill an important gap in structural mechanics, and produce fundamental insights into the response of arches containing concrete. The outcomes will include much needed design guidance.