填充砌块对粮食荷载作用下密肋复合墙体受力性能的影响

摘要

Multi-ribbed composite wall is a new type of wall structure. It has been widely used in civil buildings due to its light weight, good seismic performance, good energy-saving effect, high industrialization and high construction speed. The application of multi-ribbed composite wall in the construction of bunker can not only improve the seismic and thermal insulation performance of bunker, but also improve the thermal insulation performance of bunker. It can reduce the loss of raw materials and achieve the effect of energy saving and environmental protection. The nonlinear numerical analysis of the force performance of the wall model under the action of grain side pressure was performed by establishing a multi-ribbed room type granary composite wall model using the large-scale general-purpose finite element analysis software ABAQUS. In view of the effect of filled blocks on the flexural rigidity of multi-ribbed composite walls under the effect of grain-side pressure, building blocks and non-blocking models were established, and the influence of the filling blocks on the mechanical properties of the multi-ribbed composite wall under the action of grain load was inferred respectively.It was concluded that the filling block had great contribution to the flexural rigidity of the wall. When calculating the deformation of the multi-ribbed composite wall under grain lateral pressure, the filling blocks should be fully considered.%密肋复合墙体是一种新型墙体结构,由于自重轻、抗震性能好、节能效果佳、产业化程度高、施工速度快等优点已经在民用建筑中得到广泛应用,将密肋复合墙体应用于平房仓的建设中既可以改善平房仓的抗震及保温性能,又可以减少原材料的损耗达到节能环保的效果.通过运用大型通用有限元分析软件ABAQUS建立密肋房式粮仓复合墙体模型,对墙体模型在粮食侧压力作用下的受力性能进行了非线性数值分析,针对填充砌块对粮食侧压力作用下密肋复合墙体抗弯刚度的作用,分别建立有砌块和无砌块墙体模型,通过改变填充砌块强度得出填充砌块对粮食侧压力作用下密肋复合墙体受力性能的影响,并得出了填充砌块对墙体的抗弯刚度有很大贡献的结论.因此计算粮食侧压力作用下密肋复合墙体的变形时应充分考虑填充砌块的作用.