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首页> 外文会议>Eighth International Conference on Structural Studies, Repairs and Maintenance of Heritage Architecture 2003 null >Modelling micro-structure aspects of masonry walls by a simplified approach
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Modelling micro-structure aspects of masonry walls by a simplified approach

机译：通过简化方法对砌体墙的微观结构进行建模

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A specific simplified rigid element approach is proposed to model the elastic-plastic behaviour of masonry walls subjected to in-plane loadings. This proposal originates from the consideration that the evaluation of seismic vulnerability of masonry monuments requires peculiar procedures since their responses to earthquakes often differ substantially from those of ordinary buildings. In particular, the effective characterisation of the masonry material requires a special attention because the global mechanical behaviour of this composite material depends strongly on the different textures, as well as on the elastic-plastic characteristics of the component materials. Numerical analyses are made with the objective of evaluating the importance of the micro-structure effects in the response of masonry walls with special attention to the fact that mechanical degradation tends to concentrate in the weaker component according to a well defined pattern. The paper is limited to the case of monotonic loadings as a first step in the formulation of a rigid element model that is suitable for performing complete dynamical analyses.
机译：提出了一种特定的简化的刚性单元方法来模拟砌体墙在平面内荷载下的弹塑性行为。该提议源于这样的考虑，即评估石工古迹的地震易损性需要特殊的程序，因为它们对地震的反应通常与普通建筑物的反应大不相同。特别是，砌体材料的有效表征需要特别注意，因为这种复合材料的整体机械性能在很大程度上取决于不同的质地以及组成材料的弹塑性特性。进行数值分析的目的是评估微结构效应在砌体墙响应中的重要性，并特别注意以下事实：机械降解往往会根据明确定义的模式集中在较弱的组件中。本文仅限于单调加载的情况，这是适合于执行完整动力学分析的刚性单元模型的第一步。

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