摘要
钢筋混凝土柱在冲击爆炸荷载作用下的破坏可能会导致结构连续性倒塌。本文对爆炸荷载下钢筋混凝土柱的动力响应进行了数值模拟。在建立三维实体钢筋混凝土柱模型时,对混凝土材料采用了脆性损伤模型,分析了柱在不同折合距离时的侧向位移和失效情况,可以看出,侧向位移随着折合距离的增大而逐渐减小。当折合距离大于2.5时,爆炸冲击荷载对柱的影响很小。研究结果对钢筋混凝土柱的设计与防护具有一定的参考价值。
The damage of reinforced concrete column caused by blast loading will lead the structural to progressive collapse. The dynamic response of reinforced concrete column is analyzed by numerical simulation. By using the brittle damage model to the concrete material the three-dimenslonal solid model of the reinforced concrete column is established. The analysis shows that the lateral displacement will be reduced with the increasing of the scaled distance, and it also shows that influence of the blast loading to the column is very little when the scaled distance is more than 2. 5. The result is valuable for the designing and protecting of the reinforced concrete column.
出处
《四川建筑科学研究》
2012年第4期52-54,共3页
Sichuan Building Science
关键词
爆炸荷载
钢筋混凝土柱
折合距离
blast loading
reinforced concrete column
scaled distance
