摘要
不锈钢管混凝土柱具有承载能力高,防腐蚀性能好,结构耐久性强等优势,在对耐久性要求较高的建筑结构中有着广泛的应用前景。不锈钢管混凝土柱可能遭受到爆炸、冲击等偶然荷载的作用。对侧向冲击荷载作用下不锈钢管混凝土柱进行了动力分析和损伤评估,研究发现,不锈钢管壁厚是影响抗侧向冲击性能的主要因素。在进行不锈钢混凝土柱抗侧向冲击设计时,可考虑增大钢管壁厚来提高不锈钢管混凝土柱的抗侧向冲击性能,相应地可降低混凝土强度,充分利用2种材料的力学性能。
The concrete-filled stainless steel tubular column has the advantages of high bearing capacity,good corrosion resistance and strong structural durability.Therefore,it has a prospect of wide application in the building structure with high durability requirements.The concrete-filled stainless steel tubular column may be subjected to accidental loads such as explosions and impacts.Dynamic analysis and damage evaluation of concrete-filled stainless steel tubular column under lateral impact load are carried out in this paper.It is found that the wall thickness of stainless steel tube is the main factor affecting the lateral impact resistance.In the lateral impact design of concrete-filled stainless steel tubular column,the lateral impact resistance of concrete column can be improved by increasing the wall thickness of steel tube while reducing the strength of the concrete,thus making full use of the mechanical properties of the two materials.
作者
李晨
闫秋实
李亮
孙博文
LI Chen;YAN Qiushi;LI Liang;SUN Bowen(Beijing University of Technology,Beijing 100124,China;Beijing Urban Construction Investment Development Co.,Ltd,Beijing 100088,China)
出处
《防护工程》
2019年第6期7-14,共8页
Protective Engineering
关键词
不锈钢管混凝土柱
侧向冲击
损伤评估
concrete-filled stainless steel tubular column
lateral impact
damage assessment
