Numerical Study on the Dynamic Behaviors of Masonry Wall under Far-Range Explosions

As a common enclosure structure, masonry walls are widely used in various types of buildings. However, due to the weak out-of-plane resistance and generally brittle properties materials for blocks, they highly susceptible collapse under blast loads produce high-speed splash fragments, which seriously threatens safety personnel equipment inside In this paper, based on existing tests, refined numerical simulation model was established carry out studies clay tile grouted CMU infill far-range loads, applicability finite element parameters were verified. Further, effects wall boundary configuration, constraints dimensions dynamic response carried out. The results show that: load distribution is relatively uniform explosion can be considered as load; blast-resistant performance enhanced by increasing grouting rate uniformity grout hole distribution; configuration has little effect resistance, while length width main factors affecting wall.