合成纤维混凝土细观拉拔模型

Meso-models for synthetic fiber reinforced concrete under uniaxial tension

本文采用少量参数建立两个适用于合成纤维混凝土的细观拉拔模型,使用时通过试验方法间接测得这些参数,利用该模型可以较好地预测合成纤维混凝土的单拉曲线。文中不仅详细介绍模型的建立过程和使用方法,而且分析各种因素对纤维桥联应力的影响,指出当前研究中需要解决的主要问题,为合成纤维混凝土的工程应用提供理论参考。

Two meso-models for synthetic fiber pullout from cementitious matrix are presented in this paper to predict the tensile curve of SNFRC under uniaxial tension with some parameters obtained by experiments. Good predicted results can be achieved from these models. Aside from introducing the particular method for model formulating and application, the effects of various factors on bridging stress are discussed, and also some tasks in the further research are pointed out. The results show that the model can be used as a guide for the engineering application of synthetic fiber concrete.