摘要
用分离式钢筋混凝土模型建模,利用ANSYS/LS-DYNA软件对高强钢筋混凝土板抗接触爆炸破坏形态进行数值模拟,其中钢筋采用随动硬化模型,混凝土采用HJC模型。结果表明:高强钢筋及其配筋率、钢筋布置方式对爆炸成坑的尺寸和震塌破坏程度有一定的影响,配筋率越大,钢筋间距越小,钢筋强度越高,震塌破坏的面积越小。通过与试验结果对比,数值分析与试验结果比较吻合。
Discrete modeling of reinforced concrete was used, and ANSYS/LS-DYNA software was used to numerical-ly simulate the anti-contact explosion failure patterns of high strength reinforced concrete slab, in which steel bar used ki-nematic hardening model and concrete uses HJC model. The results show that high strength steel bar, reinforcement ra-tio and rebar layout have an impact on the explosion crater size and spallation in some extent. Reinforcement ratio is grea-ter, reinforcement spacing smaller, strength of steel higher, collapsed and damaged area is smaller. By eomparising with the experimental results, it indicates numerical analysis is in good agreement with the experimental results.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2013年第9期96-100,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(51378498)
中国矿业大学深部岩土力学与地下工程国家重点实验室开放基金(SKLGDUEK1208)
关键词
高强钢筋混凝土板
接触爆
抗爆能力
数值分析
high strength RC slabs
contact explosion
anti-blast ability
numerical analysis
