栓钉型弧形双钢板混凝土组合板的抗爆性能试验与数值分析  

Testing and Numerical Analysis of the Anti-Blast Performance of Curved Steel-Concrete-Steel Composite Slab Using Headed Stud Connectors

作　　者：陈英杰[1] 罗成 赵春风 何凯城[2] CHEN Yingjie;LUO Cheng;ZHAO Chunfeng;HE Kaicheng(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumchi 830052,Xinjiang,China;College of Civil Engineering,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052 [2]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《高压物理学报》2024年第2期112-127,共16页Chinese Journal of High Pressure Physics

基　　金：新疆维吾尔自治区自然科学重点基金(2022D01D33)。

摘　　要：弧形双钢板混凝土组合结构由钢板、混凝土与连接件协同作用,具有更优异的抗震和抗爆性能,被应用于超高层结构、海洋平台和核电设施中。利用试验和数值分析方法研究了栓钉型弧形双钢板混凝土组合结构的破坏模式和损伤机理,参数化分析了爆炸距离、钢板厚度、拱高和栓钉间距对其抗爆性能的影响。结果表明:在爆炸荷载下,栓钉型弧形双钢板混凝土组合板整体表现良好,仍具有较高的承载能力。增加爆炸距离和钢板厚度能有效减小混凝土的损伤和组合板的跨中挠度;减小拱高,混凝土损伤区域从以压缩破坏为主逐渐转换为以拉伸破坏为主,混凝土损伤更严重,组合板跨中挠度变大;减小栓钉间距会增大混凝土塑性损伤程度,但组合板的跨中挠度减小。研究结果可为弧形双钢板混凝土组合结构的设计提供参考。The curved steel-concrete-steel composite structure is a sandwiched structural member,consisting of two curved steel plates and concrete core.Headed studs are used to connect the steel plates and concrete to achieve the composite effect.This type of structure is promising for improving earthquake resistance and anti-blast performance,and has been applied in super high-rise structures,offshore platforms,and nuclear power facilities.This paper conducts experimental and numerical analysis to investigate the damage mode and mechanism of the curved steel-concrete-steel composite slab.Additionally,a parametrically analysis is conducted to explore the impact of blast distance,steel plate thickness,arch heights,and stud spacing on its anti-blast performance.The results indicate that the curved steel-concrete-steel composite structure performs well globally and retains their structural load-bearing capacity without failure after subjecting to blast loading.Increasing the blast distance and steel plate thickness can effectively reduce the concrete damage and the span deflection of the composite slab.Reducing arch heights causes a switch in concrete damage from compression damage to tensile damage,which is more severe and results in larger span deflection of the slab.Although reducing stud spacing increases the concrete plastic damage,it reduces the span deflection of the composite slab.The research results can contribute to the design and applications of curved steelconcrete-steel composite structures.

关 键 词：爆炸荷载 栓钉型弧形双钢板混凝土组合板 抗爆性能 参数分析 

分 类 号：O382[理学—流体力学] TU389[理学—力学]