UBC Theses and Dissertations

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UBC Theses and Dissertations

Development of a bond-based peridynamic model for masonry structures Du, Rongshu


Masonry is a popular construction material that has many desirable properties including ease of construction, durability, and fire resistance. However, numerical modeling of masonry prisms and structures with hollow masonry units, such as hollow concrete blocks, remains a challenge due to a discontinuous interface between masonry units and grout. This thesis proposed a new bond-based peridynamic (BPD) model to simulate the nonlinear response of masonry structures. The proposed BPD model was verified using an experimental study. The result demonstrated that the proposed BPD model can effectively simulate the behaviour of masonry prisms. The verified BPD model was implemented using a parallel version of an open-source finite element analysis platform, OpenSeesMP. A parametric study, including the prism height-to-thickness ratio, inclusion of grout, grout strength, and block configuration, was conducted to simulate the ultimate strength and failure mode of masonry prism under compression load. The result shows that the masonry compression strength increases with decreasing height-to-thickness ratio, inclusion of grout, higher grout strength, and block configuration without central web.

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