摘要
进行了侧向撞击荷载下钢筋混凝土桥墩试件动力性能的试验研究。在试验研究基础上建立了可靠的有限元模型,根据该模型探讨了单次撞击荷载下桥墩的动力响应,对比分析了单次与累次撞击荷载下桥墩的动力响应。研究证明:相同撞击速度下单次与累次撞击相比:平均撞击力较大,撞击作用时间较短;跨中截面峰值应变与平均应变均较小。研究结果为桥墩耐撞性设计提供了依据。
Impact tests were carried out on dynamic performance of reinforced concrete pier under lateral impact load.The reliable FEM had been established based on the experimental research.The dynamic performance of pier under single impact load was analysed according to the FEM.The dynamic performance of pier were contrasted under single impact load and multi-impact load.The research results have proven that average impact load was larger,acting time of impact load was shorter,peak value and average value of strain in the middle section of pier were smaller under single impact load compared with multi-impact load.The research results gived some reference for the design of pier crashworthiness.
出处
《公路工程》
2010年第5期67-70,81,共5页
Highway Engineering
